Unit 9: Part B 21st Century College English: Book 1.

Unit 9: Part BUnit 9: Part B

21st Century College English: Book 121st Century College English: Book 1

• Text B

• Listening Practice

• Assignment

• Revision of Text A

Review of Text AReview of Text A

• Assignment CheckupAssignment Checkup Structure

Translation

• Dictation

Preview Text B

Cloze

DictationDictation

You are going to hear 5 sentences. Each will be read three You are going to hear 5 sentences. Each will be read three

times. Write down the sentences according to the dictation.times. Write down the sentences according to the dictation.

1111 2222 3333 4444 5555

Check-upCheck-upCheck-upCheck-up

DictationDictation

1111

2222

3333

4444

5555

Headlines warned of rising temperatures and Headlines warned of rising temperatures and melting polar ice caps, which could result from the melting polar ice caps, which could result from the “greenhouse effect”. “greenhouse effect”.

The greenhouse effect refers to a gradual warming The greenhouse effect refers to a gradual warming of the atmosphere by an increase in carbon dioxide of the atmosphere by an increase in carbon dioxide levels.levels.

It could change amounts of rainfall, swell or dry up It could change amounts of rainfall, swell or dry up rivers, and raise the level of the seas.rivers, and raise the level of the seas.

Some argue that the rise could be due to natural Some argue that the rise could be due to natural temperature ups and downs.temperature ups and downs.

Since the harsh conditions on Venus must be Since the harsh conditions on Venus must be explained away, a runaway greenhouse effect is explained away, a runaway greenhouse effect is thought to account for its surface temperature.thought to account for its surface temperature.

StructureStructure

《读写教程 I 》 : Ex. VIII, IX, p. 251Ex. VIII, IX, p. 251《读写教程 I 》 : Ex. VIII, IX, p. 251Ex. VIII, IX, p. 251

VIII. Complete the following sentences after the given modal, with the help of the prompts given in brackets.

StructureStructure

Model:Model:

The more carbon dioxide there is in the The more carbon dioxide there is in the

atmosphere, ... atmosphere, ... (the earth’s heat, block)(the earth’s heat, block)

→→ The more carbon dioxide there is in the atmosphere,The more carbon dioxide there is in the atmosphere,

the more the earth’s heat is blocked from escaping the more the earth’s heat is blocked from escaping /re/re

leasing.leasing.

1.1. The more fuel we burn, ... (carbon dioxide, release)The more fuel we burn, ... (carbon dioxide, release)

The more fuel we burn, the more carbon dioxide will be released into the atmosphere.

2.2. The more energy the carbon dioxide absorbs at infrared The more energy the carbon dioxide absorbs at infrared wavelengths, ... (the earth’s heat, shut in)wavelengths, ... (the earth’s heat, shut in)

The more energy the carbon dioxide absorbs at infrared The more energy the carbon dioxide absorbs at infrared wavelengths, the more the earth’s heat will be shut in in wavelengths, the more the earth’s heat will be shut in in the atmosphere.the atmosphere.

StructureStructure


ListeningListening

3.3. The more books a man reads, ... ( knowledge, have)The more books a man reads, ... ( knowledge, have)

The more books a man reads, the more knowledge he will have.

4.4. The more he thought about it, ... (the less, like)The more he thought about it, ... (the less, like)

The more he thought about it, the less he liked it.The more he thought about it, the less he liked it.

StructureStructure


5. The smaller the house is, ... (the less, pay) 5. The smaller the house is, ... (the less, pay)

The smaller the house is, the less you have to pay for it.

StructureStructure


IX. Combine the following pairs of sentences after the given model using while.

StructureStructure

Model:Model:

Scientists admitted that this forecast of temperature Scientists admitted that this forecast of temperature

rising was somewhat uncertain. rising was somewhat uncertain.

Scientists warned against treating it as a cry of wolf.Scientists warned against treating it as a cry of wolf.

→ → WhileWhile admitting that this forecast of temperature rising admitting that this forecast of temperature rising

was somewhat uncertain, scientists warned against was somewhat uncertain, scientists warned against

treating it as a cry of wolf.treating it as a cry of wolf.

1.1. Scientists admit that the greenhouse effect is just Scientists admit that the greenhouse effect is just

beginning.beginning.

Scientists argue for the immediate treatment of it.Scientists argue for the immediate treatment of it.

While admitting that the greenhouse effect is just

beginning, scientists argue for the immediate treatment of

it.

StructureStructure


2.2. Many researchers admit that the temperature of the Many researchers admit that the temperature of the

earth is on the rise.earth is on the rise.

They don’t think that the earth will go the way of They don’t think that the earth will go the way of

Venus.Venus.

While admitting that the temperature of the earth is on the

rise, many researchers don’t think that the earth will go

the way of Venus.

StructureStructure


3.3. Headlines warn of rising temperatures and melting Headlines warn of rising temperatures and melting pp

olar ice caps.olar ice caps.

Many people refuse to take these as serious signs of Many people refuse to take these as serious signs of tt

hreat to the earth.hreat to the earth.

While headlines warn of rising temperatures and melting

polar ice caps, many people refuse to take these as serious

signs of threat to the earth.

StructureStructure


4.4. You are not the only person to blame.You are not the only person to blame.

You are primarily responsible for it.You are primarily responsible for it.

While you are not the only person to blame, you are

primarily responsible for it.

StructureStructure


5.5. The cost of living is rising.The cost of living is rising.

People’s purchasing power (People’s purchasing power ( 购买力购买力 ) is going up.) is going up.

While the cost of living is rising, people’s purchasing

power is also going up.

StructureStructure


ClozeCloze

《读写教程 I 》 : Ex. X, p. 252Ex. X, p. 252《读写教程 I 》 : Ex. X, p. 252Ex. X, p. 252

ClozeCloze

X. Fill in each of the blanks with an appropriate word.each of the blanks with an appropriate word.

11 The greenhouse effect is one of the most important The greenhouse effect is one of the most important

environmental ______ facing us today. If the earth continues environmental ______ facing us today. If the earth continues

to heat ____, the effects on our climate could be severe. If the to heat ____, the effects on our climate could be severe. If the

polar ice caps ______, the level of the seas could rise polar ice caps ______, the level of the seas could rise

substantially. If rainfall ________ are changed, places that are substantially. If rainfall ________ are changed, places that are

now fertile breadbaskets could _____ up and become deserts. now fertile breadbaskets could _____ up and become deserts.

And ___________ which lie near oceans or rivers could be And ___________ which lie near oceans or rivers could be

threatened by ________. threatened by ________.

meltmelt

up up

issuesissues

patternspatterns

drydry

communitiescommunities

floodsfloods

ClozeCloze


22 Scientists disagree about how profound an effect the build Scientists disagree about how profound an effect the build

up of carbon dioxide in the ____________ will have. Some say up of carbon dioxide in the ____________ will have. Some say

that the ups and _______ of temperatures are due to chance rathat the ups and _______ of temperatures are due to chance ra

ther ________ some irreversible change in our atmosphere. Bther ________ some irreversible change in our atmosphere. B

ut to more and more scientists, it seems like all the fossil _____ut to more and more scientists, it seems like all the fossil _____

__ which we are burning are having some kind of impact. Te__ which we are burning are having some kind of impact. Te

mperatures have been increasing _________ over the last 90 ymperatures have been increasing _________ over the last 90 y

ears and that is difficult fact to explain _________.ears and that is difficult fact to explain _________.

atmosphereatmosphere

downs downs

thanthan

fuelsfuels

graduallygradually

awayaway

ClozeCloze

The greenhouse problem is one that should be _________ as The greenhouse problem is one that should be _________ as

soon as possible. City planning and water storage should be soon as possible. City planning and water storage should be

________ so that we are prepared to handle whatever ________ so that we are prepared to handle whatever

changes come our way.changes come our way.

tackledtackled

revisedrevised


TranslationTranslation

《读写教程 I 》 : Ex. XI, p. 252Ex. XI, p. 252《读写教程 I 》 : Ex. XI, p. 252Ex. XI, p. 252

XIV. Translate the following sentences into English.


XIV. Translate the following sentences into English.1.1. 那位科学家在文章中争辩说，所观察到的现象是暂时的，那位科学家在文章中争辩说，所观察到的现象是暂时的，非典型的，而且这一现象不会持久。非典型的，而且这一现象不会持久。

argue that …argue that …

The scientist argued in his article that the observed The scientist argued in his article that the observed

phenomenon is temporary and not typical, and will phenomenon is temporary and not typical, and will

not last for long.not last for long.

last for long last for long


2.2. 有些人坚持认为尽管温室效应会对全球的天气带来变化，有些人坚持认为尽管温室效应会对全球的天气带来变化，但不会成为对人类的主要威胁。但不会成为对人类的主要威胁。

maintain thatmaintain that

Some people maintain that while the greenhouse effect Some people maintain that while the greenhouse effect

can bring/create changes to the global weather can bring/create changes to the global weather

patterns, it will not become a major threat to patterns, it will not become a major threat to

mankind.mankind.

whilewhile

bring /create changes tobring /create changes to


mankindmankind

3.3. 这篇文章虽然警告人们温室问题带来的效应是不可逆转这篇文章虽然警告人们温室问题带来的效应是不可逆转的，但它并未提出任何解决问题的建议。的，但它并未提出任何解决问题的建议。

warn againstwarn against

The article warns against the irreversible effects of The article warns against the irreversible effects of

the greenhouse problem, but it fails to put forward the greenhouse problem, but it fails to put forward

any suggestions about how to solve the problem.any suggestions about how to solve the problem.

fail to fail to


put forwardput forward

4.4. 最近发表了许多文章警告核武器扩散的可能性。最近发表了许多文章警告核武器扩散的可能性。

have been issuedhave been issued

Recently many reports have been issued to warn of Recently many reports have been issued to warn of

the possible spread of nuclear weapons.the possible spread of nuclear weapons.

warn of warn of

spread of nuclear weaponsspread of nuclear weapons


5.5. 这篇文章的结论是世界面临着人口稳步增长而食品供应这篇文章的结论是世界面临着人口稳步增长而食品供应不断减少的危险。不断减少的危险。

is steadily rising is steadily rising

The article concludes that the world is facing the The article concludes that the world is facing the

danger that while the population is steadily rising, danger that while the population is steadily rising,

the food supply is declining.the food supply is declining.

food supplyfood supplyis decliningis declining


6.6. 多少年来人们一直在使沙漠变成肥沃的土地，融化高山多少年来人们一直在使沙漠变成肥沃的土地，融化高山的冰川来灌溉庄稼。的冰川来灌溉庄稼。

turn … into … turn … into …

For years people have been trying to turn deserts For years people have been trying to turn deserts

into fertile lands and to melt mountain glaciers to into fertile lands and to melt mountain glaciers to

irrigate crops.irrigate crops.

irrigate cropsirrigate crops


7.7. 我们燃烧的燃料愈多，大气层中二氧化碳的含量就愈高。我们燃烧的燃料愈多，大气层中二氧化碳的含量就愈高。

the more … the higher … the more … the higher …

The more fuel we burn, the higher the carbon The more fuel we burn, the higher the carbon

dioxide levels in the atmosphere will become.dioxide levels in the atmosphere will become.

the carbon dioxide levelsthe carbon dioxide levels



8. 8. 科学家们一致认为应立即处理温室效应问题。即便如此，科学家们一致认为应立即处理温室效应问题。即便如此，对于如何有效控制温室效应一直有相当大的争议。对于如何有效控制温室效应一直有相当大的争议。

to be tackled to be tackled

Scientists agree that the greenhouse problem has to Scientists agree that the greenhouse problem has to be tackled now. Even so, there has been be tackled now. Even so, there has been considerable debate over how to get it under considerable debate over how to get it under effective control. effective control.

Even so,Even so,

get sth. under effective controlget sth. under effective control

considerable debate overconsiderable debate over

Preview Text BPreview Text B

《读写教程 I 》 : Ex. C, p. 260Ex. C, p. 260《读写教程 I 》 : Ex. C, p. 260Ex. C, p. 260

The following sentences are taken from the text. Go The following sentences are taken from the text. Go over them carefully and try to figure out the meaning of over them carefully and try to figure out the meaning of the underlined words in the following sentences.the underlined words in the following sentences.


Guessing Unknown Words and Guessing Unknown Words and ExpressionsExpressions

1.1. Within the past 300 years our numbers have Within the past 300 years our numbers have increasincreas

ed ed dramaticallydramatically , doubling in ever-shortening , doubling in ever-shortening cycles. cycles.

A) excitinglyA) excitingly

B) exceptionallyB) exceptionally

C) strikinglyC) strikingly

D) extremelyD) extremely


1.1. Within the past 300 years our numbers have Within the past 300 years our numbers have increasincreas

ed ed dramaticallydramatically , doubling in ever-shortening , doubling in ever-shortening cycles. cycles.

A) excitinglyA) excitingly

B) exceptionallyB) exceptionally

C) strikinglyC) strikingly

D) extremelyD) extremely

2.2. If population growth continues at its present rate, it If population growth continues at its present rate, it

will put will put enormousenormous pressure on world food supplies. pressure on world food supplies.

A) seriousA) serious

B) hugeB) huge

C) unbearableC) unbearable

D) dangerousD) dangerous


2.2. If population growth continues at its present rate, it If population growth continues at its present rate, it

will put will put enormousenormous pressure on world food supplies. pressure on world food supplies.

A) seriousA) serious

B) hugeB) huge

C) unbearableC) unbearable

D) dangerousD) dangerous

3.3. To provide adequate food for the world’s people by To provide adequate food for the world’s people by thth

e e year 2000, the production of grains must be year 2000, the production of grains must be doubledouble

d and animal products d and animal products quadrupledquadrupled . .

A)A) increased sharply increased sharply

B)B) increased by one-fourthincreased by one-fourth

C)C) increased four timesincreased four times

D)D) redoubledredoubled


3.3. To provide adequate food for the world’s people by To provide adequate food for the world’s people by thth

e e year 2000, the production of grains must be year 2000, the production of grains must be doubledouble

d and animal products d and animal products quadrupledquadrupled . .

A)A) increased sharply increased sharply

B)B) increased by one-fourthincreased by one-fourth

C)C) increased four timesincreased four times

D)D) redoubledredoubled


4.4. The air over many large cities has become a grayish The air over many large cities has become a grayish

haze because of automobile exhaust and industrial haze because of automobile exhaust and industrial popo

llutantsllutants . .

A)A) materialsmaterials

B)B) toxic wastestoxic wastes

C)C) chemicalschemicals

D)D) low-quality productslow-quality products

4.4. The air over many large cities has become a grayish The air over many large cities has become a grayish

haze because of automobile exhaust and industrial haze because of automobile exhaust and industrial popo

llutantsllutants . .

A)A) materialsmaterials

B)B) toxic wastestoxic wastes

C)C) chemicalschemicals

D)D) low-quality productslow-quality products


5.5. Pollution of our water and land grows Pollution of our water and land grows apaceapace . .

A) steadilyA) steadily

B) continuouslyB) continuously

C) continuallyC) continually

D) speedilyD) speedily

5.5. Pollution of our water and land grows Pollution of our water and land grows apaceapace . .

A) steadilyA) steadily

B) continuouslyB) continuously

C) continuallyC) continually

D) speedilyD) speedily


6.6. Because humans are Because humans are adaptiveadaptive animals, they have animals, they have bb

een able to adjust to crowded living conditions in een able to adjust to crowded living conditions in huge huge

cities. cities.

A) able to adjust to a changing environment A) able to adjust to a changing environment

B) intelligent B) intelligent

C) creativeC) creative

D) movableD) movable

6.6. Because humans are Because humans are adaptiveadaptive animals, they have animals, they have bb

een able to adjust to crowded living conditions in een able to adjust to crowded living conditions in huge huge

cities. cities.

A) able to adjust to a changing environment A) able to adjust to a changing environment

B) intelligent B) intelligent

C) creativeC) creative

D) movableD) movable


7.7. People need recreational space, too, especially if they People need recreational space, too, especially if they

live and work in live and work in crampedcramped quarters. quarters.

A) dirtyA) dirty

B) dangerous B) dangerous

C) crowdedC) crowded

D) tinyD) tiny

7.7. People need recreational space, too, especially if they People need recreational space, too, especially if they

live and work in live and work in crampedcramped quarters. quarters.

A) dirtyA) dirty

B) dangerous B) dangerous

C) crowdedC) crowded

D) tinyD) tiny


8.8. To sum up, To sum up, uncheckedunchecked population growth is not population growth is not mm

erely an annoying problem exaggerated by erely an annoying problem exaggerated by pessimists wpessimists w

ho always worry about the future.ho always worry about the future.

A) rapid A) rapid

B) worseningB) worsening

C) uncontrolled C) uncontrolled

D) ever-increasingD) ever-increasing

8.8. To sum up, To sum up, uncheckedunchecked population growth is not population growth is not mm

erely an annoying problem exaggerated by erely an annoying problem exaggerated by pessimists wpessimists w

ho always worry about the future.ho always worry about the future.

A) rapid A) rapid

B) worseningB) worsening

C) uncontrolled C) uncontrolled

D) ever-increasingD) ever-increasing

Extensive Reading: Text BExtensive Reading: Text B

• Language PointsLanguage Points

• Comprehension Exercises Reading SkillReading Skill

Text B:Text B: The Population Problem: The Population Problem: Everybody’s BabyEverybody’s Baby

The Population Problem: Everybody’s BabyThe Population Problem: Everybody’s Baby

11 Throughout history Throughout history population growth has proceeded at a

relatively slow pace, from approximately 250 million people in

A.D.1 to 500 million people by 1650. Within the past 300 years,

however, our numbers have increased dramatically, doubling in

ever-shortening cycles, so that

by 1930 world population stood at 2 billion and a brief 48 years

later at over 4 billion. If population growth continues at its

present rate, it will put

Text B: Text B: The Population Problem:Everybody’s BabyThe Population Problem:Everybody’s Baby

enormous pressure on world food supplies, making it difficult, enormous pressure on world food supplies, making it difficult,

if not impossible, to avoid hunger and starvation on a massive if not impossible, to avoid hunger and starvation on a massive

scale. Despite all the triumphs of agriculture in the twentieth scale. Despite all the triumphs of agriculture in the twentieth

century, century,

population growth goes way ahead of the gains in food production.

Hundreds of millions of people in Africa, Asia, and South America

lead lives dominated by hunger and malnutrition, and we are

adding 75 million people to the world each year. To provide

adequate food for the world’s people by the year 2000, according

to one expert, the production of grains must be doubled, animal

products

Text B: Text B: Easy Ways to Avoid an ArgumentEasy Ways to Avoid an Argument

quadrupled, and fruits and vegetables tripled. quadrupled, and fruits and vegetables tripled.

The probability of accomplishing such goals is not high, given the

uncertainties of weather and the difficulty of raising sufficient capit

al to finance such efforts.

2.2. In addition to food shortages, rapid population growth will In addition to food shortages, rapid population growth will

increase the pollution of the environment. The air over many increase the pollution of the environment. The air over many

large cities has become a grayish haze because of automobile large cities has become a grayish haze because of automobile

exhaust and industrial pollutants; and as population grows, so exhaust and industrial pollutants; and as population grows, so

will the number of automobiles andwill the number of automobiles and


factories — and people suffering from respiratory diseases. factories — and people suffering from respiratory diseases.

Americans alone add more than 140 million tons of smoke and Americans alone add more than 140 million tons of smoke and

fumes to their air each year. And pollution of our water and fumes to their air each year. And pollution of our water and

land grows apace. Monstrous oil tankers now spill millions of land grows apace. Monstrous oil tankers now spill millions of

gallons of oil into the oceans each year; factories and gallons of oil into the oceans each year; factories and

municipalities pour chemical and human waste into rivers, municipalities pour chemical and human waste into rivers,

lakes, and streams. This pollution could have catastrophic lakes, and streams. This pollution could have catastrophic

effects if phytoplankton — minute, floating aquatic plants — effects if phytoplankton — minute, floating aquatic plants —

are destroyed, since they provide 70 percent of the earth’s are destroyed, since they provide 70 percent of the earth’s

oxygen. Destruction of the land will increase as oxygen. Destruction of the land will increase as


it becomes covered with asphalt for more roads and highways, it becomes covered with asphalt for more roads and highways,

as it becomes despoiled by giant strip-mining machines in as it becomes despoiled by giant strip-mining machines in

search of more coal, and as its natural vegetation is removed to search of more coal, and as its natural vegetation is removed to

make room for more houses and refuse dumping sites. The make room for more houses and refuse dumping sites. The

solution to hunger and famine obviously depends on the solution to hunger and famine obviously depends on the

intelligent use of the land. If we do not cherish and protect it, it intelligent use of the land. If we do not cherish and protect it, it

will not support our current population, will not support our current population,

to say nothing of billions more.


3.3. People also have a need for space, for room to live and plaPeople also have a need for space, for room to live and pla

y. Though we might be able to feed, clothe, and house more billy. Though we might be able to feed, clothe, and house more bill

ions, we cannot create more space for them; and limitations of ions, we cannot create more space for them; and limitations of

space will create serious psychological problems for humanity. space will create serious psychological problems for humanity.

Because humans are adaptive animals, they have been able to Because humans are adaptive animals, they have been able to

adjust to crowded living conditions in huge cities, but adjust to crowded living conditions in huge cities, but

they have paid a price in increasing irritability and feelings of alie

nation

. Like other animals, they need a territory of their own, a home . Like other animals, they need a territory of their own, a home

large and comfortable enough for them to relax and restolarge and comfortable enough for them to relax and resto

re theirre their


energies. The more people are jammed together, the more hostenergies. The more people are jammed together, the more host

ile and irrational they become. Such irrationality is evidenced iile and irrational they become. Such irrationality is evidenced i

n the higher crime rates, the more frequently disrupted public n the higher crime rates, the more frequently disrupted public

services, and the general impersonality and lack of community services, and the general impersonality and lack of community

in large cities. And people need recreational space, too, especiain large cities. And people need recreational space, too, especia

lly if they live and work in cramped quarters. Yet recreational lly if they live and work in cramped quarters. Yet recreational

areas-beaches, camping grounds, national parks, ski resorts, aareas-beaches, camping grounds, national parks, ski resorts, a

nd the like nd the like —— are already crowded with people. What will con are already crowded with people. What will con

ditions be like by the year 2000 when world population reaches ditions be like by the year 2000 when world population reaches

6 or 7 billion? 6 or 7 billion? One doesn’t need a crystal ball to find the answer.


4.4. To sum up, unchecked population growth is not merely an To sum up, unchecked population growth is not merely an

annoying problem exaggerated by pessimists who always worrannoying problem exaggerated by pessimists who always worr

y about the future. It is, on the contrary, the most serious proby about the future. It is, on the contrary, the most serious prob

lem humanity faces today. Hunger and starvation, environmenlem humanity faces today. Hunger and starvation, environmen

tal destruction, and increasing human tensions and irritabilitytal destruction, and increasing human tensions and irritability

- these are the certain results if we are not able to solve it. - these are the certain results if we are not able to solve it.


Reading Skill VIIReading Skill VII

《读写教程 I 》 : Ex. B, p. 260Ex. B, p. 260《读写教程 I 》 : Ex. B, p. 260Ex. B, p. 260


Skimming and scanning are two basic fast reading Skimming and scanning are two basic fast reading

techniques. These two terms are sometimes used techniques. These two terms are sometimes used

interchangeably. Generally, however, interchangeably. Generally, however, skimmingskimming is defined as is defined as

the ability to identify the ability to identify main ideasmain ideas while discarding minor points. while discarding minor points.

ScanningScanning, in contrast, refers to the ability to locate , in contrast, refers to the ability to locate specific specific

information or factsinformation or facts as quickly as possible. Usually, when you as quickly as possible. Usually, when you

scan for information, you know what you are looking for. You scan for information, you know what you are looking for. You

run through the material at high speed until you find the run through the material at high speed until you find the

answer. Then you stop and read only what you need.answer. Then you stop and read only what you need.


Scanning for Specific InformationScanning for Specific Information

Scan the text and complete the following statement.Scan the text and complete the following statement.

Exercise BExercise B

1.1. From A.D. 1 to the mid-seventeenth century, the world From A.D. 1 to the mid-seventeenth century, the world

population increased by _____ percent.population increased by _____ percent.

2.2. During a short period of 48 years from 1930 to 1978, the During a short period of 48 years from 1930 to 1978, the

number of the world population jumped from _____ to number of the world population jumped from _____ to

____________.____________.

3.3. We are now adding about _____ million people to the We are now adding about _____ million people to the

world each year.world each year.

4.4. The world population is most likely to reach ________ The world population is most likely to reach ________

billion around the year 2000.billion around the year 2000.

100100

2b2b

over 4bover 4b

7575

5.655.65

5.5. To meet the demand of world food supplied by 2000, To meet the demand of world food supplied by 2000,

we’ll have to produce _______ as many grains and we’ll have to produce _______ as many grains and

___________ as many fruits and vegetables as we do now.___________ as many fruits and vegetables as we do now.

6.6. Each year, cars and factories in the U.S, send out Each year, cars and factories in the U.S, send out

___________ tons of smoke and fumes into the air.___________ tons of smoke and fumes into the air.

7.7. Seventy percent of the earth’s oxygen is provided by Seventy percent of the earth’s oxygen is provided by

_______________._______________.

8.8. Only by making wise use of __________ will we be able to Only by making wise use of __________ will we be able to

find a solution to the problem of hunger and famine.find a solution to the problem of hunger and famine.

twicetwice

three timesthree times

140 million140 million

phytoplanktonphytoplankton

the landthe land

Scan the text and complete the following statement.Scan the text and complete the following statement.

Exercise BExercise B

Experts predict that human population growth will grow at a Experts predict that human population growth will grow at a tremendous rate.tremendous rate.

Text-related InformationText-related Information

Crystal ball:Crystal ball:

In crystal gazing (a type of fortune-telling), the In crystal gazing (a type of fortune-telling), the

crystalcrystal gazer looks into a crystal ball in an gazer looks into a crystal ball in an

attemptattempt toto seesee future events pictured there.future events pictured there.

Text-related InformationText-related Information

by 1930 world population stood at 2 billionby 1930 world population stood at 2 billion

by 1930 world population had reached 2 billionby 1930 world population had reached 2 billion

Translate into Chinese:Translate into Chinese:

到到 19301930 年时，世界人口为二十亿年时，世界人口为二十亿

ComprehensionComprehension

population growth goes way ahead of the gains population growth goes way ahead of the gains in food productionin food production

population grows at a much greater speed than population grows at a much greater speed than does food productiondoes food production


The probability of accomplishing such goals is The probability of accomplishing such goals is not high, given the uncertainties of weather and not high, given the uncertainties of weather and the difficulty of raising sufficient capital to the difficulty of raising sufficient capital to finance such efforts.finance such efforts.

If we take into account the uncertainties of weatIf we take into account the uncertainties of weather and the difficulty of rher and the difficulty of raisingaising enough funds,enough funds, it is it is not very likely that wenot very likely that we will be able to accomplish will be able to accomplish such goals. such goals.


考虑气候的不稳定和为这些计划筹措足够资金的困难，考虑气候的不稳定和为这些计划筹措足够资金的困难，要实现这些目标的可能性是不大的。要实现这些目标的可能性是不大的。


to say nothing of billions moreto say nothing of billions more

without even considering the billions more people without even considering the billions more people who will populate earth in the futurewho will populate earth in the future


更不用说增加几十亿人了更不用说增加几十亿人了


they have paid a price in increasing irritability they have paid a price in increasing irritability and feelings of alienationand feelings of alienation

they have suffered from increasing irritability and they have suffered from increasing irritability and feelings of alienation as a result of the crowded feelings of alienation as a result of the crowded living conditions in huge cities living conditions in huge cities


他们付出的代价是烦躁和疏离感的增加他们付出的代价是烦躁和疏离感的增加


One doesnOne doesn’’t need a t need a crystal ball to find the to find the answer.answer.

The answer is plain enough for people to see for The answer is plain enough for people to see for themselves; we don’t need a fortune-teller to tell us themselves; we don’t need a fortune-teller to tell us what is going to happen.what is going to happen.


ListeningListening

《听说教程 I 》 : Part 5.3, p. 123Part 5.3, p. 123《听说教程 I 》 : Part 5.3, p. 123Part 5.3, p. 123

You will hear 10 short conversations. You will hear 10 short conversations. After each conversation you will hear a After each conversation you will hear a question. Listen carefully and choose the question. Listen carefully and choose the best answer from the four choices given.best answer from the four choices given.

ListeningListening

Short ConversationsShort Conversations

1.1.

A. Because she didn’t like the other kids there.A. Because she didn’t like the other kids there.

B. Because she didn’t enjoy going out in the B. Because she didn’t enjoy going out in the rowboat.rowboat.

C. Because there were too many mosquitoes.C. Because there were too many mosquitoes.

D. Because fishing on the lake wasn’t much fuD. Because fishing on the lake wasn’t much fun.n.

ListeningListening

2. 2.

A. A large room with two beds.A. A large room with two beds.

B. A double room with a bathroom.B. A double room with a bathroom.

C. A small room with a swimming pool.C. A small room with a swimming pool.

D. A single room with a telephone and shower.D. A single room with a telephone and shower.

ListeningListening

3. 3.

A.A. Patient-doctor.Patient-doctor.

B.B. Student-teacher.Student-teacher.

C.C. Secretary-boss.Secretary-boss.

D.D. Husband-wife.Husband-wife.

ListeningListening

4. 4.

A.A. He’s wasted half of his money.He’s wasted half of his money.

B.B. He’s bought the wrong book.He’s bought the wrong book.

C.C. He’s bought two wrong books.He’s bought two wrong books.

D.D. He’s found the book he needs.He’s found the book he needs.

ListeningListening

5. 5.

A.A. On Monday.On Monday.

B.B. On Thursday.On Thursday.

C.C. On Friday.On Friday.

D.D. On Saturday.On Saturday.

ListeningListening

6. 6.

A.A. Because it was too long.Because it was too long.

B.B. Because it was too boring.Because it was too boring.

C.C. Because it was not well written.Because it was not well written.

D.D. Because it was violent.Because it was violent.

ListeningListening

7. 7.

A.A. The new apartment is nicer.The new apartment is nicer.

B.B. She wants a quieter place.She wants a quieter place.

C.C. The present one is too small.The present one is too small.

D.D. She likes to listen to the radio.She likes to listen to the radio.

ListeningListening

8. 8.

A.A. Called a private residenceCalled a private residence

B.B. Reached the guest house.Reached the guest house.

C.C. Dialed 5685-8633.Dialed 5685-8633.

D.D. Found no problem.Found no problem.

ListeningListening

9. 9.

A.A. She doesn’t have one right now.She doesn’t have one right now.

B.B. She’s bought a new one.She’s bought a new one.

C.C. Her brother has given her one.Her brother has given her one.

D.D. She has only an old one.She has only an old one.

ListeningListening

10. 10.

A.A. Helpful.Helpful.

B.B. Polite.Polite.

C.C. Rude.Rude.

D.D. Patient.Patient.

ListeningListening

Check-upCheck-upCheck-upCheck-up

1.1.

A. Because she didn’t like the other kids therA. Because she didn’t like the other kids there.e.

B. Because she didn’t enjoy going out in the rB. Because she didn’t enjoy going out in the rowboat.owboat.


D. Because fishing on the lake wasn’t much fD. Because fishing on the lake wasn’t much fun.un.

1.1.

A. Because she didn’t like the other kids therA. Because she didn’t like the other kids there.e.

B. Because she didn’t enjoy going out in the rB. Because she didn’t enjoy going out in the rowboat.owboat.


D. Because fishing on the lake wasn’t much fD. Because fishing on the lake wasn’t much fun.un.

1.1. W:W: Where do you want to go on vacation this summer?Where do you want to go on vacation this summer?

M:M: I liked going to that cabin in the mountains last year. I liked going to that cabin in the mountains last year. That was fun. Remember all the fun we had goinThat was fun. Remember all the fun we had goin

g g out in the rowboat, and the fishing on the lake?out in the rowboat, and the fishing on the lake?

W:W: Yes, but I remember all the mosquitoes too. Also Yes, but I remember all the mosquitoes too. Also I remember that there weren’t any other kids of I remember that there weren’t any other kids of our age to play with. I didn’t think it was so muchour age to play with. I didn’t think it was so muchfun.fun.

QQ:: Why didnWhy didn’’t the girl like their vacation in the t the girl like their vacation in the

mountainsmountains last year?last year?

Listening — Check-upListening — Check-up

2. 2.

A.A. A large room with two beds.A large room with two beds.




2. 2.

A.A. A large room with two beds.A large room with two beds.




2.2. M:M: Do you have a single room with telephone and pDo you have a single room with telephone and private shower for tonight and tomorrow night?rivate shower for tonight and tomorrow night?

W:W: I’m sorry, sir. We don’t have any rooms with priI’m sorry, sir. We don’t have any rooms with private showers free now, but there’s a bathroom on eavate showers free now, but there’s a bathroom on each floor.ch floor.

M:M: All right. How much is the room per night?All right. How much is the room per night?

W:W: 18 pounds. That includes breakfast, of course.18 pounds. That includes breakfast, of course.

QQ:: What kind of room did the man ask for?What kind of room did the man ask for?


3. 3.





3. 3.





3.3. W:W: Excuse me, Dr. Clark.Excuse me, Dr. Clark.

M:M: Come in, Rita.Come in, Rita.

W:W: Do you have time to talk to me about registratiDo you have time to talk to me about registration for next semester?on for next semester?

M:M: Sorry, I have a class in a minute. But I could seSorry, I have a class in a minute. But I could see you at 4:00 or 4:30.e you at 4:00 or 4:30.

W:W: Four o’clock is fine. I’ll come back then.Four o’clock is fine. I’ll come back then.

QQ:: What is the relationship between the twoWhat is the relationship between the two speakers?speakers?


4. 4.





4. 4.





4.4. M:M: Hey, Susan, I got a used copy of our English texHey, Susan, I got a used copy of our English textbook for half price.tbook for half price.

W:W: You wasted your money, I’m afraid.You wasted your money, I’m afraid.

M:M: What do you mean? What do you mean?

W:W: What you’ve got is the first edition, but we’re sWhat you’ve got is the first edition, but we’re supposed to be using the 2nd edition.upposed to be using the 2nd edition.

QQ:: What has the man done?What has the man done?


5. 5.





5. 5.





5.5. M:M: It’s been raining since Monday, but clear weatIt’s been raining since Monday, but clear weather is forecast for tomorrow.her is forecast for tomorrow.

W:W: I’m glad to hear that. I play golf every SaturdaI’m glad to hear that. I play golf every Saturday and I like to have good weather.y and I like to have good weather.

M:M: Oh, my wife and I are also playing golf tomorrOh, my wife and I are also playing golf tomorrow.ow.

W:W: Well, have a good game!Well, have a good game!

M:M: You too.You too.

QQ:: When did the conversation take place?When did the conversation take place?


6. 6.





6. 6.





6.6. M:M: Well, what did you think of the movie?Well, what did you think of the movie?

W:W: I don’t know why I let you talk me into going. I I don’t know why I let you talk me into going. I just don’t like violence.just don’t like violence.

M:M: I didn’t realize there would be quite so much. TI didn’t realize there would be quite so much. The story was good, though.he story was good, though.

W:W: Yes, it was well written.Yes, it was well written.

QQ:: Why didnWhy didn’’t the woman like the movie?t the woman like the movie?


7. 7.





7. 7.





7.7. M:M: I’m told you’re moving to a new apartment sooI’m told you’re moving to a new apartment soon.n.

W:W: Yes, in just a few days.Yes, in just a few days.

M:M: Is your new place nicer than this one?Is your new place nicer than this one?

W:W: Not really. It’s just that my neighbor here playNot really. It’s just that my neighbor here plays the radio all night long and I can‘t sleep.s the radio all night long and I can‘t sleep.

QQ:: Why is the woman moving?Why is the woman moving?


8. 8.



C.C. Dialed 5685-8633.Dialed 5685-8633.


8. 8.



C.C. Dialed 5685-8633.Dialed 5685-8633.


8.8. M:M: Is this 568-8633? I’m trying to reach the guest Is this 568-8633? I’m trying to reach the guest house.house.

W:W: You have the wrong number. This is a private rYou have the wrong number. This is a private residence.esidence.

M:M: Oops, I’m sorry.Oops, I’m sorry.

W:W: No problem.No problem.

QQ:: What mistake did the man make?What mistake did the man make?


9. 9.





9. 9.





9.9. M:M: I wonder if I could borrow your calculator, pleI wonder if I could borrow your calculator, please?ase?

W:W: You certainly could if I had one, but I gave my You certainly could if I had one, but I gave my old one to my brother when he started middle schooold one to my brother when he started middle school last month and I haven’t bought a new one yet.l last month and I haven’t bought a new one yet.

QQ:: Why canWhy can’’t the woman lend the man hert the woman lend the man her calculator?calculator?


10. 10.


B.B. Polite.Polite.

C.C. Rude.Rude.


10. 10.


B.B. Polite.Polite.

C.C. Rude.Rude.


10.10. M:M: Would you tell me when we get there?Would you tell me when we get there?

W:W: It would be better if you watched out for yoursIt would be better if you watched out for yourself. I might forget.elf. I might forget.

M:M: Well, how will I recognize it?Well, how will I recognize it?

W:W: Just watch for the big arch and a lot of trees. GJust watch for the big arch and a lot of trees. Get off the bus when we get there. Just don’t keep on et off the bus when we get there. Just don’t keep on asking me!asking me!

QQ:: What is the womanWhat is the woman’’s attitude?s attitude?


AssignmentAssignment

1.1. Reading Analysis Reading Analysis

p. 253;p. 253;

2.2. Structured Writing Structured Writing

p. 254.p. 254.

Unit 9: Part B 21st Century College English: Book 1.

Documents

Transcript of Unit 9: Part B 21st Century College English: Book 1.