课件52张PPT。外研版
高三年级(选修9)
Module 2Module 2Introduction & Reading and Vocabulary (1) 1. To understand the main idea of the passage.
2. To encourage students to speak in English.Teaching AimsDo you know cloning? Look at the following pictures and say what you know about them.I’m the world’s first cloned mammal Dolly.Warming UpDolly and its
creatorthe world’s first cloned mule
Idaho GemI was born on 4 May 2003, Look! I’m growing stronger now. My name is Cc, I was born in December 2002.Scientists created me with a cell taken from my mother Rainbow.Our names are Noel, Engel, Star, Joy, and Mary. Can you recognize each of us. 1. to have similar physical features as
someone else
2. to be similar an older person in your
family in appearance or personality
3. a formal word meaning to have
similar physical features as someone
elselook liketake afterresembleMatch the word and phrases in the box with their meanings.look like resemble take afterWork in pairs and discuss the questions.1 Who do you look like, your mother or your father? Explain how you resemble him/her?
2 Who do you take after your personality?Complete the sentences about the body with the words in the box. cell diseases environment gender genetics identical twin1. Something that is found in all living
things is a ____.
2. A ____ is one of two children born at
the same time to the same mother.
3. ________ is the study of genes. celltwinGenetics4. Some _______ are inherited but not all of them.
5. The ______ of a child is whether it is a boy or a girl.
6. Twins who are ________ have exactly the
same genes.
7. The ___________ as well as our genes
makes us who we are. diseasesgenderidenticalenvironmentReading and vocabulary(1)James Dewey Watson (born April 6, 1928) is an American molecular biologist, geneticist, and zoologist, best known as one of the co-discoverers of the structure of DNA in 1953 with Francis Crick. Pre-readingFrancis Harry Compton Crick (8 June 1916?– 28 July 2004) was an English molecular biologist, biophysicist, and neuroscientist, and most noted for being one of two co-discoverers of the structure of the DNA molecule in 1953, together with James D. Watson. 1. Why did Waston and Crick say, “We have discovered the secret of life”?Read Parts 1 and 2 of the
passage and answer the questions. Because they discovered DNA and that is what genes are made of. Fast readingFast reading2. Do you think stories A-D in Part 2
are true? Why? / Why not?Open.1. What will genetic engineering help scientists do in the near future?Read Part 3 of the passage and
answer the questions. Insert new genes into people to create new characteristics.2. What does the writer feel about the
new developments in genetics?Some things would be positive but others might change the basic nature of human beings; he feels we must be careful in making decisions. Read the text carefully again and choose the best answers.1. According to the text, the fun_ction of our
genes is to ______.
A. pass our excellent characteristics on to
our children
B. pass our certain diseases on to our babies
C. pass our hereditary characteristics on to
our children
D. get rid of the hereditary characteristicsCareful reading2. Although the police questioned John
Waters, they didn’t arrest him because
______ in the story A.
A. he was a free man
B. he was not the real murderer
C. he had nothing to do with the killed
man
D. there was no exact evidence to
prove his crime3. The couple decided to get rid of the
unborn baby because ______.
A. the baby will be born with a terrible,
inherited illness
B. the baby will not be good-looking
C. the baby was not clever enough
D. they didn’t want a baby at that
moment4. The author’s attitude towards the new
technology of genetic engineering is
______.
A. optimistic B. pessimistic
C. worried D. indifferentLook at the words and expressions from the passage and choose the correct answers. commit a murder couple hereditary victim perform an operation pregnant question reproduce1. …how do living things reproduce themselves?
(a) to have babies or produce young plants
(b) to feed themselves. 2. …our genes, which pass hereditary
characteristics on to our children.
(a) new (b) inherited from parents
3. Although the police questioned him…
(a) to wonder about him
(b) to ask someone questions
4. But when he committed the murder…
(a) killed the man (b) saw the dead man5. …Waters left some of his own cells on
his victim.
(a) the person he attacked
(b) his own clothes
6. About six months ago, Mark secretly
visited a surgeon, who performed an
operation on him.
(a) Mark had an operation
(b) the surgeon said Mark should have
an operation7. Damian Peterson and his wife
Clara are another couple…
(a) two people who are married
(b) example
8. When Clara became pregnant…
(a) became worried (b) was going to have a babyAnswer the questions about the words in the box. advance alter athlete benefit
consequence development insert field
good-looking structure technologyWhat is another word for
(a) athlete (b) consequence (c) alter
(d) field (e) good-looking(a) runner (b) result (c) change
(d) area (e) handsome / pretty2. Does a plant have a structure?Computer technology.Yes, it does. 3. What are the benefits of learning
English?International communication.4. Can you think of a technology that is
used in business?5. Which two words in the box can have more or less the same meaning?Put it into something else.advance, development6. If you insert something, what do
you do?考点点拨 考例回顾But it is very likely that their child will be born with a terrible, inherited illness. (P17)
【考点】 likely意为“可能的”，常用于it’s likely that ... 或be likely to do sth.结构。Practice【点拨】选A。likely意为“可能的”，主语可以是人也可是物。possible和probable也都有“可能的”之意，但其作表语时主语通常是物，sure在此处意思不恰当。【考例1】
Studies show that people are more ________ to suffer from back problems if they always sit before computer screens for long hours.
likely B. possible
C. probable D. sure 【考例2】
–Would she mind playing against her
former teammates?
–________ She is willing to play against
any tough players.
A. I think so. B. I’m not surprised.
C. Of course. D. Not likely! 【点拨】 选D。由答语后半句“她乐意与任何强劲的对手比赛”可知回答者的看法应该是“不可能（介意）”，故选D。2. As long as you have a good diet, scientists can predict your height by looking at your parents’ heights. (P22)
【考点】 as long as在句中引导条件状语从句，意为“只要”，也可用so long as表示。【考例】
– Our holiday cost a lot of money.
– Did it? Well, that doesn’t matter ________ you enjoyed yourselves.
A. as long as B. unless
C. as soon as D. though【点拨】 选A。答语句意为“是吗？只要你们玩的开心，那（花很多钱）是没有关系的。” as long as只要，符合题意。unless除非；as soon as一……就……； though虽然。Find these sentences and phrases
in the passage and answer the
questions.1. The discovery of DNA has been called the most important biological work of the last 100 years. Why?Because it has such a big influence on our lives.Post-reading2. But when he committed the murder, Waters left some of his own cells on his victim.
What were scientists able to do as a result?
3. Two months later Julia had a small but very expensive operation…
What do you think the surgeon did?Match the DNA in the cells to the DNA of the suspect. Open.4. He’s a world champion again…
Why doesn’t Mark deserve to be a world champion?
5… hospital tests showed that her child
would have this illness.
Why did Clara have hospital tests?
Because he is not a “natural” champion.To find out if their unborn child had the family’s hereditary disease.6. A new future is approaching.
Why does the writer say this?
7. On the other hand, we may soon be able to
get rid of the disease– but keep the baby!
How might we do this?
8. …there are many important issues to discuss.
Can you give some examples? Because genetic engineering will become very common and change everything.Open.Open.Find the phrases
in the passage. 科学界
生物
人体
实施谋杀
非常匹配
对……有巨大影响scientific community
living things
human body
committee the murder
match exactly
have an enormous influence on…标准程序
犯罪调查
基因工程
对……手术
世界冠军
高度聪明的standard procedure
criminal investigation
genetic engineering
operate on…
world champion
highly intelligent遗传病
除掉
因此
很可能……
在不远的将来
以非常直接的方式inherited disease
get rid of
as a result
It’s likely that …
in the near future
in a very direct wayWork in pairs, discuss the questions
and give reasons for your opinion.1. Which story in Part 2 of the passage is most exciting, in your opinion?
2. Which story do you find most frightening?
3. Do you think it is a good idea for people to choose the gender of their baby?4. What kind of rules do you think we should
make about athletes and genetic engineering?
Example: I don’t think we should allow
athletes to have genetic engineering.5. What is your opinion about the
developments in genetics in general?
Example: I think they’re very exciting, but
we need to be very careful. We
don’t know what the consequences
of these changes will be.Write an article to list some advantages and disadvantages that genetics has brought us and try to explain how we can make it safe and beneficial.Homework课件62张PPT。外研版
高三年级(选修9)
Module 2Module 2Language in use （1） 1.?表示特指的人或物Please hand me the key on the desk. The girl in red I s his sister. The building over there is the tallest in the town. I like the music of the film.? The 的用法He saw a house in the distance. Jim's parents lived in the house. There was once an old fisherman. The old
fisherman had a cat. The cat was white. 3. 用在世界上独一无二的名词前the sun太阳,? the earth地球,? the moon月亮, the sky天空,? the world 世界2? 表示双方都知道的或心中明白的人或物Has he returned the book?? The river is two thousand kilometers long from west to east. They traveled through the country from south to north. 方位词成对使用构成平行结构时，不用_________。4. 用在表示方向、方位的名词前the east东方，the west西方，the south南方，the north北方，the right右边，the left左边定冠词5. 用在形容词最高级前Summer is the hottest season of the year. She is the best person for the job. Hangzhou is one of the most beautiful cities in the world. The car is the most expensive of the four. 6. 用在序数词等前定冠词用在序数词前，也用在表示序列的next, last等前，还有在表示“同一”或“唯一”等的词前。The first man to land on the moon is an American. She was the fifth to climb to the top of the mountain. This may be the last chance. If I miss this train I'll catch the next one. He is the only person who knows the secret. The two coats are of the same colour. This is the very book I want. a. 序数词表示“又一”时，前面用______________He bought a second pair of shoes. He asked a question, then a second, then a third… b 序数词用作状语或表语时，___________________。George arrived first.
=George was the first person to arrive.不定冠词a(an)前面不加定冠词7. 用在单数名词前表示一类人或物，强调整个类别The orange is a kind of fruit. The horse is a useful animal. The computer is important to us. 不定冠词+单数名词，不带冠词的复数名词也可表示一类人或物。 A car runs faster than a bus.? Cars run faster than buses.A dog is a faithful animal.? 8.? 用在乐器名词前，表示演奏She can play the piano. He plays the violin very well. He played the guitar for the children. 但乐器名词表示具体的器物，或表示课程时，________。He bought a piano last month. 不加the9. 在江河、海洋、湖泊、群岛、山脉的名称前长江红海西湖the West Lake 太平洋 the Pacific the Himalayas 喜马拉雅山 尼罗河the Nile 落基山脉the Red Sea the Yangtze River the Rocky Mountains10. 用在由普通名词和另外一些词构成的专有名词前长城 the Great Wall 联合国the United Nations? 《纽约时报》 the New York Times? 《人民日报》the People’s Daily? 红十字医院 the Red Cross Hospital?? 11.? 用在某些形容词前, 表示一类人或物或 某种抽象概念the old?the happy 幸福的人the aged? 老人the impossible?? 不可能的事 the smooth?? 顺事the beautiful? 美的东西老年人12.? 用在姓氏的复数形式前，表示全家人或这一姓的夫妇二人The Greens will more to the country. The Wangs came to see us yesterday. The Browns are very friendly. 13.? 用在表示计算单位的名词前，含有“每, 每一”的意思Jim is paid by the hour. Eggs are sold by the kilogram. They sell sugar by the pound. 2. 指最靠近的人物或时间：
I’m surprised you like that picture – I prefer this one.
What’s in this hand?用来指已经提到或知道的人物等：
There will be another lecture later this week.
What is the purpose of your visit to this company?This的用法pron. (1) 指已经提到或知道人物等：
This is the question: how to avoid the
accident.
What’s in this hand?
(2) 用于见面或电话中介绍“这一位”或者自己：
This is Mr White, a friend of mine.
This is Jack (speaking).
adv. 用来表示多大或者多少等：
The shelf is about this high and this wide.
Why do you come back this late?表示现在、目前：
What is he doing now?
If we start now we’ll finish the work before noon.
2. 用以引起注意或者加强语气：
Now, let’s have break!
Having failed quite a few times, she now tried a new plan.Now的用法3. 用于固定短语：
Every now and then we get the itch to travel.
Where have I put my pencil? I was using it just now.
Catch the opportunity. It’s now or never!Now, that you have come, you may stay here for a drink.
Let’s start the meeting now that everybody is here.
She should have arrived by now.
Bill wishes to stay with his family from now on.Language in use （2） 用于一般过去时态，注意人称和数的变化：
He was caught stealing in a supermarket.
We were shown around the factory after the meeting.Was / Were
的用法2. 用于虚拟语气，were / was在_________________中可以换用：
If I were/was you, I would keep away from him.
If she were/was one year older, she might understand it better.
How I wish I was/were ten years younger!口语和非正式英语3. 注意下面句子不是虚拟语气：
She used to wait for me if I was not in when she called.
They asked him if he was aware of it.1. 用作人称代词, 代替前文提到过的东西:
e.g. – Where is my book?
– It’s on the table.
You have saved my wife and I shall
never forget it.
2. 用以代替指示代词this 和that
e.g. – What is this? – It’s a flag.
– Whose book is that?
– It’s hers.It 的用法3. 用以表示时间, 天气, 自然环境, 距离等
I glanced at my watch. It was earlier than I thought.
It often rains in summer.
It’s very quiet in the café.
How far is it from your office to the bank?
4. 用来表示是谁做某动作
e.g. –Who is it? – It’s me.
– “Why, it’s you!” he cried.5. 当动词不定式、动名词或从句______时, 通常把它们放在后面, 而用__作句子的形式主语。
e.g. It’s nice not to be dependent on
them.
It takes two to make a quarrel.
It is no use crying over spilt milk.
It’s been a lot of fun meeting you.
It is said that he is a criminal.
How was it possible that a man can fall
so low?作主语it1) be+形容词+不定式 It’s better to be early.
2) be+名词+不定式
It was his duty to take care of the orphans.
3) be+介词短语+不定式
It’s beyond me to say why.
4) It +及物动词+宾语+不定式
It makes me sick to think about it. It充当形式主语类型5) be+名词+动名词
It’s no good standing here in the cold.
6) be + 形容词+动名词
It’s helpless trying to advise her to do so.
7) 其他结构+动名词
It doesn’t matter waiting a few more.1) it +be+形容词+that从句
It is natural that they should have different views.
2) it +be+名词+that从句
It’s a shame that you’re sick.由that引导的主语从句类型3) it +动词(+宾语) +that从句
It happened that she wasn’t in that day.
It never occurred to me that perhaps she was lying.
4) It’s+ said/ believed/ thought/ expected/ reported / known+ that从句
It’s said that there has been an earthquake in India. 注意: 下面从句中的谓语有时需用虚拟语气。
It was his suggestion that I (should) come round to you.
It was necessary that I (should) get the writing typed.
It’s very important that he (should) go to the school of Art.1) it可以代表不定式：
She found it difficult to convince him.
He felt it his duty to take care of them.
2) it代表that引导的从句：
I took it for granted (that) you would
be coming.
3) it间或代表连接代(副)词引导的从句：
They haven’t made it known where
the meeting is to take place. 6. 形式宾语it 7. It+动词be+强调部分+who (whom)/ that+其他部分，__可以用来对句子的某一成分加以强调。
It was in 1975 that I worked in the factory.
It was in Shanghai that I saw the
exhibition.
Was it you that (who) broke the window?
It was the President that he shot yesterday.it注意对比:1) It was five o’clock ______
Jack arrived yesterday.
2) It was at five o’clock ____ Jack arrived yesterday.
3) Was it in the museum ____ met you?
4) Was it the museum ______ I met you?
1) It was not until I saw Mary next morning that I felt happy. not until结构用于强调句型
I didn’t feel happy until I saw Mary next morning.
2) It was not for several days that I had an
opportunity of seeing the bird again. 强调句
= I didn’t have an opportunity of seeing the
bird for several days.注意对比：1. Tom broke the window last night.
2. They want money.
3. Peter saw his friend in the park yesterday.
4. I didn’t have an opportunity of seeing her again for several years. 把下列句子改为强调句。5. Why does everyone think I’m
narrow-minded?
6. I didn’t receive my letter until
yesterday?
7. Did Dick call the meeting last week?
8. Did it happen in 1980?8. It + be + adj. of/for sb. to do sth.句型中___为形式主语, 真正的主语是____________。此句型重点是考查何时用of何时用for。如果句型中的形容词是用来描述sb的特征的 (kind/rude/ cruel/ polite/ right/ wrong/ foolish/ silly/stupid/wise等),则用_____。it后置的不定式of此时句式可以换成sb + be + adj. + to do sth;若句型中形容词是用来描述不定式性质的 (important/ necessary/ hard/ difficult/ easy/ natural/common等), 则用_____。 1) It’s very kind of you to say so
= You are very kind to say so.
2) It’s important for one to learn a
foreign language.for9. It’s up to sb. to do sth.此句型意为: ________________。在此句型中, 口语中常用It’s (all) up to you或up to you表示 “由你决定”。 10. It be + 时间 + before …此句型表示: 过了一段时, 才……
否定表示: 没多久, 就…… 由某人决定做某事这个句型中的时间一般为表示一段时间的词语，如some time, long, years, months, weeks, days, hours, minutes等。主句的时态可用过去时was或将来时will be：用was 时，before从句常用__________；用will be 时，before从句常用___________。It was not long before we got the news that he would go to America for study.
It will be three days before that big project is finished. 一般过去时一般现在时11. It be + 时间 + since …这个句型表示从since 从句谓语动作发生以后到现在或过去所经过的一段时间，意为“自从……已经多久了”。表示现在的情况时，主句多用__________，从句多用____________；表示过去的情况时，主句多用__________，从句多用___________。一般现在时一般过去时一般过去时过去完成时It is about 6 years since my sister went abroad.
It was two years before he graduated from college.
Mary said it was two years since her mother had been away.11. It’s (high) time that…此句型表示: 该是……的时候了。that可以省去。使用该句型时, that从句中的谓语动词用_________________________________, 但是________不可省略。1) It’s time the kids went to bed.
2) It’s high time that I should go to pick up my son.一般过去时或者用should +动词原形should12. It + be the first/second…time that… 此句型表示: 是某人第几次做……当主句be用is时, 从句谓语动词用___________;当主句be用was时, 从句谓语动词用___________。it也可以用this或that。 1) It (This) is the second time that he has come to visit the city.
2) It (That) was the first time that I had visited the Great Wall.现在完成时过去完成时1. How long _____ to finish the work?
A. you’ll take B. will take you
C. you’ll take it D. will it take you
2. It was through Jack _____ Mary got to know Bob.
A. who B. whom C. how D. thatI. Choose the best answers.Exercises3. It was simply for that reason _____ I wouldn’t tell him the truth.
A. why B. that C. which D. so
4. It was ____ I went there ___ I began to know something about the matter.
A. until; when B. until; that
C. not until; that D. not when; that5. It was on October 1st 1949 ___ new China was founded.
A. which B. when C. as D. that
6. ____ will take you a lot of time to find him in the crowd.
A. It B. I C. We D. They 7. Let’s get through the work quickly. _____ seems to be little time left now.
A. It B. There C. That D. Here
8. ____ is different between A and B.
A. There B. It C. Where D. What
9. ____ is no difference between A and B.
A. There B. Where C. It D. What10. He said, “___ a long way to school. ___ a long way to go yet before we arrive.”
A. It is; There is B. There is; it is
C. It is; it is D. There is; There is
11. There is a photo on the wall. ____ a photo of Lei Feng.
A. It B. It’s C. Its D. He’s
12. His father kept telling him that he should
work harder, but _____ didn’t help.
A. it B. he C. which D. she13. He felt ____ to work for human rights and progress.
A. it his duty B. his duty
C. that is a duty D. that is his duty
14. People in the west make ____ a rule to buy Christmas presents for their relatives and friends.
A. that B. it C. this D. as15. We found __ possible to get rid of the nuclear waste.
A. that B. this C. / D. it
16. I think __ right that you didn’t go there.
A. you B. that C. it D. its
17. __ is not good __ without doing anything.
A. This; talking B. It; to talk
C. It; talking D. That; to talk18. It _____ Mike and Mary who helped the old man several days ago.
A. was B. were C. is D. are
19. _____ four years since I left my home town.
A. It was B. There was
C. There is D. It is II. 根据汉语提示，完成下列句子。
1. It may be many years ___________________
___________.
(这种状况才能得到改善)。
2. Don’t forget, it is the first time I
_________________________ (在公共场合做演讲).
3. It is three years ___________________ (自从他参加工作) after graduation. before the situation improves have made a speech in publicsince he went to work4. It is in the last month that he
___________________________
(做出了一个重要的决定).
5. It was already 10 o’clock
_________________________ (我们
结束聚会的时候) on Saturday.
6. It is five years ______________________.
我离开家乡已经五年了。since I left my hometownmade an important decision when we finished our partyadv. 1. 用来指经常、大量等：
Do you go there much? (often)
Thank you very much. (a lot)
She talks too much.
2. 用来修饰比较级等：
He is much taller than I.
They were much tired by the task.Much的用法adj. 用来修饰不可数名词：
There was so much food that we
couldn’t eat it all.
Jack has not much money.
It’s too much for the little words.
pron. 用来指代不可数名词：
How much did you pay for the book?
Much has been done about it?n. 用于固定短语：
So much for today.
The boss was used to being made much of.Homework复习the, this, now, was/ were, it, much，掌握它们的用法，做Language in use(1)中的activity 4及Language in use (2)中的activity 5。课件18张PPT。外研版
高三年级(选修9)
Module 2Module 21. To understand some difficult sentence structures.
2. To develop the ability of making up sentences.Teaching Aims1. Crick and Watson had found the answer to one of the most important questions of biology – how do living things reproduce themselves?
克里克和沃森找到了生物学上最重要问题之一— 生物是如何复制自己的答案。the answer ____ the question 问题的答案 the key to the lock 这把锁的钥匙the entrance to the door 门口 to2. Every cell in our bodies contains our genes, which pass hereditary characteristics on to our children.
我们身体的每个细胞都包含我们的基因，这些基因把我们的遗传特征传给孩子们。
pass on to 传（下去）给，请注意动词后面的on表示 _____e.g. Do you intend to pass this custom
on to the younger generation?
你们打算将这种风俗传给下一代吗？继续3. It has already had and will continue to have an enormous influence on our lives.
这已经并继续对我们的生活产生巨大影响。
have (an enormous) influence on有很大影响
influence既可作动词也可作名词。
★influence作动词时，意为“影响，对……产
生作用”。
e.g. My teacher __________ my decision to
study science.
我的老师对我学理科的决定起了影响。influenced★influence作名词时，可意为“影响”，常见
搭配：have a(n) ... influence on / upon ...
对…… 有……的影响；under the influence
of ...在……的影响下；have influence over ...
对……有支配力/影响力。influence还可意
为“产生影响的人或东西”。
e.g. His works _________________________
generations of musicians.
他的作品对好几代音乐家都 产生过很大
的影响。had a major influence on4. Although the police questioned him, they did not arrest him.
尽管警方审问过他，但并没有将他逮捕。
question v. 询问；质询；问；表示怀疑，常用于question sb. about / on sth. 结构。
e.g. The police ___________________the
stolen car.
警察就被偷的汽车一事向他询问。 questioned him aboutThe teacher had told us he _______________________.
老师告诉过我们，他要考我们动词。
Then an Italian scientist named Galileo began to question Aristotle’s theory of falling objects.
后来一个名叫伽利略的意大利科学家，开始对亚里士多德的落体学说提出质疑。
I question the truth of his words.
我对他的话的真实性表示怀疑。 would question us on verbsbeyond all question
无可置疑，毫无疑问
in question 正被谈论中的
out of question 的确；毫无疑问
out of the question 不可能，根本谈不上；不允许；不值得讨论拓展under question 在受盘问
without question 毫无疑问，无可争辩
there is / was no question of sth. / sb. doing sth.
(某事/某人做某事)是不可能的5. Two months later Julia had a small but very expensive operation, using a technology called genetic engineering.
两个月后Julia做了一次不大但是很昂贵的手 术, 手术采用了一种被称为基因工程的技术。本句中using是现在分词作方式状语,表示 “通过…方式”, called 是过去分词作后置定语, 相当与一个定语从句“which was called”. 6. Watson and Crick’s discovery about DNA was the beginning of enormous advances in the field of genetics.
沃森和克里克关于DNA的发现是遗传学
领域一系列巨大进展的开端。
in the field of 在……领域7. …, we are altering nature in a very direct way.
……我们就是在直接改变自然。
alter vt. (部分地) 改变,变更, 更改 （意见、计划等） ; 改建（房屋）
alter an opinion改变意见vt. 修改（衣服）e.g. The coat is too large; they
_______________.
这件外套太大，必须修改。e.g. The ship _________________.
这艘船改变了航向。 altered her coursemust be altered牢记本课中的重点短语。Homework 课件52张PPT。外研版
高三年级(选修9)
Module 2Module 2Reading and Vocabulary (2)
&
Presentation Skills1. To understand the main idea of the passage.
2. To encourage students to speak in English.Teaching AimsReading and Vocabulary (2)1. Scientists will soon have the ability to
________________.
2. However, scientists will not be able to
___________________________________.“read” our genes predict our future with any real successRead the passage and complete the sentences.Fast Reading Have you seen this film before? It is about cloned people who fight for their freedom. Before the text let’s enjoy part of it.1. Which characteristics, physical or
psychological, are inherited or mostly inherited?Read the passage again and answer the questions. Physical.Careful Reading2. Does it seem that most psychological traits are inherited? Give examples in your answer.It is a mixture of inherited and environmental factors that affect traits like violence or getting on well with people.3. Why won’t scientists be able to tell us a lot about our future?Because of the unpredictable nature of environmental factors.4. What do “these new developments”
refer to in the last paragraph?The ability to read our genes.5. What kind of problems will these new developments create?They may mean that people will be prejudged on factors which would not actually occur, simply because of what their genes predict may happen.Match the words and expressions in the box with their meanings.complicated decade in detail envelope
to a (great) extent insurance company
physical psychological trait violence1. a period of ten years
2. connected with your body rather than
your mind decadephysical3. a paper cover that you put a letter in
before you send it
4. a particular characteristic in someone’s
personality
5. mainly
6. connected with your mind and feelingsenvelopetraitto a great extentpsychological 7. giving special facts
8. a company that will pay you money if you are ill, when you pay money every month
9. difficult to do or understand
10. the behavior of using physical
force to hurt people or damage
propertyin detailinsurance companycomplicatedviolence很可能
死于
在以后十年
体征
宁愿做……
在很大程度上be likely to do die of in the next decadephysical characteristicsto a great extentprefer doingCan you find the following phrases in the passage?同样适合
与……相处
详细地
在不远的将来
举几个例子
心理特点psychological characteristicsbe true ofget on well with in detailin the near future to give a few example Post Reading Explain the meaning of the words and phrases.Example: The new developments mean that life
is going to become even more
complicated!If something is complicated, it is difficult to understand because it has many different parts or aspects. The new developments in genetics will create new problems. So we will have more to think about and more decisions to make.1. As long as you have a good diet, scientists can predict your height by looking at your parents’ heights.
2. We now know that the need to wear glasses has a genetic cause.
3. Our eating habits also appear to be decided by our genes!4. Do you enjoy dangerous sports such as car racing?
5. This is true of things such as how violent we are, and how well we get on with other people.
6. … the fact is that scientists will be able to “read” our genes in the near future.Read DNA - the Secret of Life on Page 16 again. Compare it with your Genes, Your Future on Page 22.1. which passage do you find more exciting?
2. do either of the passages worry you? Why? / Why not?
3. which passage gives examples from real life? Would you prefer examples from real life in the other passage?4. Which passage gives more scientific information? Would you prefer to have more scientific information?
5. Which passage do you think you will remember for longer?Language Points1. Supposing this information could tell you what illnesses you were likely to get, or even what illness you might die of, would you open the envelope?
假设这个信息能够告诉你你可能得什么病, 或者你将会死于什么病, 你还会打开这个信封吗？1) possible, probable, likely辨析
三个词都有“可能”的意思。其区别如下：
① possible强调客观可能性，常暗含“希望很
小”的意思。常用句式：It is possible
that ...；It is possible for sb. to do sth.。
e.g. It’s possible to have a group of
the records collected and printed.
叫人收集一组这样的记录并打
印出来是可能的。 ② likely常指从表面判断很有可能发生。常
用句式：It is likely that ...；... be likely
to do sth.。
e.g. _________________a decision will be
made before the end of the year.
很可能将要在年底以前做出决定。
She's very likely to visit her uncle
tomorrow.
她很可能明天去看望她叔叔。 It’s quite likely thate.g. _________________ he has forgotten our
appointment.
很可能他是忘了我们的约会了。 ③ probable用来指有根据、合情理、值得相
信的事物，比possible可能性大。常用句
式：It is probable that ...。It is probable that用法上的异同:
① 三个词都能用于“It+系动词+…+that 从
句”中。
e.g. Do you think ______________it will happen.
你认为有可能发生这种事吗？
It’s possible that the manager will buy
more land.
经理有可能会购买更多的土地。
_________________the manager will
employ more people.
经理不可能雇用更多的人。 it’s possible thatIt’s not likely thatIt seemed hardly likely that they would agree.
看来他们不大可能会同意。
It’s probable that our school will buy a new computer.
我们学校很有可能将买一台新电脑。
It seems probable that our school will be better by this afternoon.
看来她今天下午很可能会好一些。② possible和likely后面可接不定式的一般式。
e.g. ______________connect several telephone
numbers together so that you can all speak.
把几个电话号码连接在一起，你们都能发
言，那是可能的。
We’ve just heard a warning on the radio
that a hurricane ______________.
我们刚在收音机里听到警告，说一场飓风
可能要来临。It’s possible tois likely to come③ 只有likely前面主语可以是人, 而
possible, probable不能。
e.g. She’s very likely to ring me tonight.
= ___________________she will ring me
tonight.
她今天晚上很可能打电话给我。 It’s very likely that④ 只有possible 后面可以接for sb. to do
sth.而likely, probable不能。
e.g. ____________________________to meet
me at the gate about 9:30 am?
上午九点半左右有人在大门口要见我，
有可能吗？ Will it be possible for someone⑤ possible可以和表示条件的连词if
连用,构成if possible。
e.g. – When do you want it?
—你什么时候想要？
– Tomorrow, ______________.
—如果可能，明天就要。 if possible⑥ possible 还可以构成as … as possible
“尽可能…”。
e.g. I’m planning to start a school, so I’m
trying to save _______________________.
我打算办一所学校，所以我正在尽力节
省尽可能多的钱。 as much money as possible2) 本句中的supposing表示 “假设”, 引导
条件状语从句。
条件状语从句的连词有: if, unless, as
long as, in case, on condition that,
suppose/ supposing that, provided/
providing that, granted/granting that,
given that, in case 等。
注意:条件状语从句中不能用______时态。将来2. As long as you have a good diet, scientists can predict your height by looking at your parents’ heights.
只要你饮食正常，科学家就能够根据你父母的身高预测出你的身高。
as long as ：①只要；②既然，由于，就……来说；③与……一样长。 e.g. I think children should live with their
parents as long as possible.
我认为孩子应该和父母尽可能长时间
的生活在一起。【拓展】
常见的“as ... as”结构的短语还有：
as soon as 尽快 as well as 和……一样，也，还【即学即练】
根据汉语意思补全下面句子（每空一词）。
1. 我将尽快把它寄出去。
I'll send it __ _____ __ I can.
2. 只要天气好我们就去。
We'll go ___ ____ ___ the weather is good.
3. 她是个摄影师还是个天才的音乐家。
She is a talented musician ___ ___ ___ a
photographer.
4. 既然你提供了，我就接受。
___ ____ ___ you've offered, I accept.as soon as as long as as well as As long as 3. To a great extent, it’s your genes that
decide.
很大程度上，起决定作用的是你的基因。
to a great/ large extent 在很大程度上
to a certain extent 在一定程度上
e.g. _______________, I agree with you on
the view.
在很大程度上，我同意你的看法。To a great extent4. Nonetheless, the fact is that scientists will be able to “read” our genes in the near future.
尽管如此，实际上科学家们在不远的将来就能够“阅读”我们的基因。
nonetheless adv. = nevertheless 仍然，尽管e.g. Though he’s fool, I like him __________.
虽然他很笨, 我仍然喜欢他。nonethelessPresentation SkillsHolding a class debateRead the announcement for the debate and decide if the following ideas from this module argue or against the motion.1. DNA testing can help in criminal investigations.
2. You can use genetic engineering to create a “designer baby”.3. Tests can now detect inherited illnesses before the child is born.
4. People whose genes predict illness may not get jobs or insurance cover.
5. GM food could solve famine in the world.6. It will be difficult to know what genetic
modifications to food have been made
and how they would affect you.7. We don’t know the effect of genetic modification of crops on the environment.
8. Genetic engineering is the victory of science over nature.For: 1, 3, 5, 8
Against: 2, 4, 6, 7Work in groups. Decide if you’re going to argue for or against the motion. Make a list of your arguments and
opinions. Use the ideas in Activity 1 to
help you, and look back trough the
rest of this module.Homework Prepare your arguments. Use the language
in the box below, and the examples which you
may have found in this module, or elsewhere.
Make sure you have examples to support
your arguments. Try to think about what the other group will
say, and prepare contrasting arguments
against their ideas.
prepare your opinions about the motion,
based on your argument.Arguing for and against课件35张PPT。外研版
高三年级(选修9)
Module 2Module 2GM Food-Good or Bad?Reading practice1. What is genetically modified food?
2. How can you tell the difference between ordinary food and GM food?
3. How much GM food is there in China?
4. What are the advantages of GM food?
5. What are the disadvantages of GM food?
6. What should we do about GM food in China?Work in pairs and discuss your answers to the questions.Pre-readingIs GM food good or bad?Not much is known about long-term effects of GM food on humans and the environment. It is “unpredictable”.1. Is transgenic food the same as genetically modified food? Read the passage and answer the questions.It will kill good insects as well.Yes. 2. What is the risk of producing a GM crop
which kills pests?While-reading3. Why is the risk from carcinogens reduced in GM food?If that gene is transferred to another food, and the allergic person doesn’t know. Because there are fewer traces of cancer-inducing pesticides in the food. 4. What is the risk to someone who is
allergic to a particular gene?5. How does the amount of GM food in the US compare with the number of people who think it’s dangerous?30% of maize, 50% of soy beans, 50% of potatoes and tomatoes are GM, and 27% of consumers are worried about the dangers of GM. 6. How could GM food be stopped form entering China?They did a big survey.By having the customs inspect all imported foods. 7. How did the writer know that there
weren’t any imported GM foods in
the markets?8. What actions is going to be taken about GM foods in China?9. Do you think the writer agrees with this
action?Foods are going to be labeled.Yes. Look at these pairs of sentences from the passage. Decide if the second sentence adds to or contrast with the information in the first sentence. 1. a … GM food is already common in
the united states.
b China does not produce very much
GM food… b contrasts with a 2. a In Canada and the United States, 27
percent of consumers fear that GM food
could be dangerous.
b In Europe, a majority of consumers are
in favor of banning them, and 79 percent
of the UK public opposes GM food b adds to a b adds to a3. a Chinese customs do not list transgenic
products as an item requiring inspection.
b Therefore GM products may enter the
country from abroad. 4. a Neither young nor old people feared
possible side effects from GM food.
b … some parents of children said that
they would now pay more attention to
food labeling. b contrasts with a Answer the questions.Scientists have found that a crop with a gene
that kills pests can leave a poison in the soil that kills helpful as well as harmful insects.a What can the crop do?
b What does the crop contain?
c What can the poison in the soil do?leave a poison in the soilkills helpful as well as harmful insectsa gene that kills pests2. Yet reducing the amount of insecticides needed by using GM crops can reduce the amount of cancer producing chemicals –or carcinogens – that are found in food. a How can you reduce the amount of insecticides needed?
b What needs insecticides?
c What can reduce cancer producing
chemicals?
by using GM cropsusing less insecticidesthe crops3. If a gene that produces an allergic reactions is transferred into another crop, then a person who usually avoids food containing this gene may not know that it is now present in the modified food. a What kind of gene is it?
b What kind of person is it?
c What might this person not know?that the GM food has that gene in itone which causes an allergic reactiona person who usually avoids those foods4. Unfortunately, the “Agricultural Organisms Transgenic Engineering Safety Implementation Measures” issued by the Chinese Ministry of Agriculture do not apply to imported agricultural products. a What are issued by the Chinese Ministry of Agriculture?
b What do they not apply to?
c Why is this unfortunate?
the “ Agricultural Organisms Transgenic Engineering Safety Implementation Measures” imported agricultural productsBecause GM food will be imported unchecked.呼吁
因此
对……有抵抗力
过敏反映
至今
无法预测的后果call on sb. to do sth. as a result of be resistant to allergic reactionup to nowunpredictable consequences Useful phrases in the passage副作用
多注意
从现在开始
以至于
适合
转基因食品side effectspay more attention tofrom now on so as to apply to genetically modified food 1. Are you for or against GM food? Explain why.
2. What do you think should be done about GM food in China? Ban the planting of GM crops, ban the sale of GM food, label it clearly, or anything else?Work in pairs and discuss.Post-readingCultural cornerTwo Creatures in
The Time Machine
Before we learn
the text,
let’s enjoy the
film first.
Read the passage and answer the questions.How are the Eloi and the Morlocks different from each other?The Eloi live above ground, while the Morlocks live underground; The Eloi are small, beautiful and unable to do physical work, while the Morlocks are strong and wicked.Their appearance was very different, too. The Eloi were hairy only on their heads, while the Morlocks had hair down their backs, too. The Morlocks’ eyes were greyish-red, while the Elois’ eyes were large and mild.Can you describe two or three of the very different races in China?Open.Language pointsThe Time Traveller, as he is called, finds that human beings have evolved into two completely different kinds of creatures.
这位被称为时光旅行者的人发现，人类已经逐渐进化成了两种完全不同的生物。evolve v. (生物)进行，演变
e.g. Buds ____________ flowers.
蓓蕾开放成花。evolve into2. He struck me as being a very beautiful and graceful creature, but indescribably frail.
我深切地感到，他是一个非常俊美优雅但却极度脆弱的人。indescribably adv. 难以形容地，无法描绘地
frail adj. 体弱的，虚弱的
e.g. Her health is very _____. 她的身体十分虚弱。 frail3. …I fancied even then that…
……我想即使那时……
fancy v. 相信，想像
e.g. Can you fancy him in uniform?
你能想像一下他穿制服的样子吗?
I fancied that you wouldn’t come.
我以为你不会来了。Just fancy! [口语]真想不到
Fancy (that)! 真想不到!竟有这样的事! Writing an article about making genetic safe and beneficial.HomeworkWork in pairs. Read the reading passages in this module again. Choose three advances in genetics that you think create or will create problems. Discuss what the problems are and what can be done to solve them.Write the article, you should:Introduce the subject of genetics.
Briefly describe three advances.
Describe the problems connected with these advances.
Say what you think we can or should do to solve these problems.课件12张PPT。外研版
高三年级(选修9)
Module 2Module 2Vocabulary and ListeningComplete the sentences with the correct form of the words in the box. ambitious at one point award bestseller coin fame qualification reaction research shocked A scientist’s ________ to the names
Watson and Crick is to say that they
were brilliant.reaction2. Crick’s scientific _____________ were higher than Watson’s.
3. At one point, the two scientists had to stop their ________ in the field of genetics.
4. They threw a _______ to decide how to write their names.
5. In 1962 Watson and Crick were _________
the most important scientific prize, the
Nobel Prize.researchcoinqualificationsawarded6. Crick wrote a book which became a
_________.
7. People were _________by this book,
which described many scientists as
stupid.
8. The book described Watson as
__________ for fame and money.shockedambitiousbestsellerWatson and Crick Listen to a passage of how Watson and Crick discovered DNA. Check the true sentences in Activity 1. True sentences: 1, 3, 4,
5, 7Listen again and answer the questions. What do we learn about:
1. the age and nationality of the two
scientists? Crick was 37 and British. Watson was 25 and American.2. why they started working together?Because they were both fascinated by DNA.4. why it was Watson and Crick who
made the discovery?5. the scientists’ later careers? Because they worked so well together and understood each other so well.Crick researched the brain, and Watson headed the Human Genome Project.3. other terms of scientists? There was a “race” between different teams to solve the problem.1. It was Watson and Crick who _____ the discovery.
2. Crick ______ research into the brain.
3. People ______ different reactions to their names.
4. Watson _____ higher qualifications
than Crick.
5. How did they ______ the decision?madeComplete the sentences with the correct form of do, make or have. didhavehadmakeHomework做WORKBOOK上100-101页的听力练习。
