Lesson 18Porpoises

Lesson 22

Knowledge and progress

Discussion

The author points out that

knowledge is a two-edged

weapon that can be used for

good or evil, do you agree with

him? Can you give any

examples?

http://www.sy916.net/photo/details.php?image_id=9203

http://www.rian.cn/eguoxinwen/eluosi_shehui/20061030/41571321.html

T : Listen to the text (or read it silently) and see if you can answer this question: What would you say is the main characteristic of porpoises?

1 What has there long been among mariners? 2 How does superstition say that porpoises will save drowning men? 3 How does superstition say that porpoises will protect drowning men from sharks?

4 Is it probably a mistake to credit dolphins with any motive of lifesaving?

5 Have dolphins pushed unconscious humans to shore? 6 Why might they have done it, according to the writer? 7 What were some porpoises photographed doing in 1928?

8 Does the writer say why they did this? 9 If porpoises have protected humans from sharks, what may have attracted them? 10 What may have attracted the sharks? 11 Are porpoises and sharks natural allies? 12 What might have happened to the sharks?

13 What is the porpoise intrigued with? 14 Which sea creatures are porpoises const

antly chasing? 15 What do the turtles submit to?

16 What did one young porpoise enjoy doing? 17 How does a young porpoise try to turn a 300-p

ound turtle over? 18 Is this easy?

19 So what might the operation require? 20 In another game, how do the porpoises knock a turtle to the floor of the oceanarium tank?

21 Is the turtle now satisfied merely to stand up? 22 But then what does a porpoise do? 23 The turtle gives up at last. How? 24 And is the game over then?

Superstition among mariners

Porpoises will save drowning men or protect them--sharksMarine Studio biologists:

probably not true.

Done out of curiosity or for sport.

e.g. pushing a mattress to the shore.

Saving men from sharks: porpoises and sharks: natural enemies.

In defensive formation 以防御队形

In attacking formation 以进攻队形

March in formation 列队行进

Credit n. 银行存款 / 学分 / 荣誉Please deposit this sum of

money to my credit.

He took a course for three credits.

Most people are happy to take all the credit, but none of the blame.

Credit n.

Do sb credit/do credit to sb. 增加某人的声誉This work does your credit. 这

项工作是你的光荣。His smart appearance does credit to hi

s tailors. 他英俊的外表使他的裁缝们的技艺益为生色。

Credit n. Be a credit to sb / 增加某人的

声誉The pupils are a credit to their teache

rs/ schools. 学生为老师们 / 学校增光。

Credit vt. 相信 / 信任 / 把… . 存入It was hard to credit some of the

stories we heard about her.

He credited $ 200 to my account.

It is unwise to place credit in hearsay. 道听途说是不明智的。 n.

Credit...with 相信… / 具有；信赖I credit his parents with commo

n sense. 我相信他父亲是通情达理的。

他相信那件好事是我做的，其实我根本都没想到。

He credited me with doing the good deed, which in fact I never thought of.

Out of curiosity 出于好奇心I helped him out of kindness.

They did it completely out of ignorance.

Photograph…doing sth 拍摄到…做某事

Tom was photographed leaving the building.

All the way 一直；自始至终； 毫无保留

我们从市中心一直走回家。

I’m with you all the way.

我完全支持你。

.We walked all the way from the downtown to home.

Submit to sb/sth- surrender; give in; abstain from resistance

Submit to the enemy Submit to ill treatment Submit to separation from one’s

family屈服于敌人甘受虐待忍痛与家人分离

我们决不屈从于外国的压力。We never submit to the foreign

stress.Subject to– bring, get (a cou

ntry, nation, person) under control 使隶属； 使服从

Ancient Rome subjected most of Europe to her rule.

古罗马征服了大半个欧洲。Subject a man to torture 使人受折磨 。

No sooner … than…--immediately when or after一…就…刚…就…He had no sooner /No sooner

had he arrived home than he was asked to start on another journey.

他刚到火车站， 火车就开动了。He had no sooner /No sooner

had he reached the station that the train started to leave.

No sooner said than done.

说了就做。

Be intrigued with… 对感兴趣

The little girl is intrigued with whatever she sees.

Mankind n. (humans in general, especially when talking about their history and development) 人类

Man n. 人类（有性别歧视之嫌）A human/human being[ 可数 ]. = a person, human beings 人类

一组表示“人类”的词

The human race( all people, considered together as a group)人类

Humanity n. 人性

Thanks ！