选修六Module5VocabularyandreadingPPT课件

1、高二(选修6）2module 5 cloning vocabulary and reading 3listen to the tape and pay more attention to the words you cant pronounce correctly. look at the following pictures and discuss with your classmates about cloning. 45sheep dolly 6cloned monkeys7do you know which one is cloned?8the cloned horse9read th

2、ese words and decide which ones you are likely to see in the passage. acid bacteria embryos enzyme experience gene human tissue organism plant psychological stem cell structure upbringingpart 1: word study 10part 2: fast reading what did watson and crick discover in 1953? 2. what did mendel do in 18

3、66?he first recorded the results of growing pea plants.they discovered the structure of the acid dna.11part 3: scanning what is _?a. dnab. a clone c. an enzyme 12dna a transparent twisting ladder made of the fundamental components of life13a clonean organism which is genetically identical to another

4、 one 14 enzymechemicals formed in the body15part 4: careful reading the science of genetics was discovered by _. a. mendel b. watson and crick c. cohen and boyer d. einstein a162. cloning humans from their parents has the disadvantage that_. a. it is a treatment for couples who want children b. it c

5、ould create an exceptional human being c. we cannot predict the psychological effects d. the clone may not lead the same life c 173. stem cells can be used to _. a. develop into enzymes b. create prize winning animals c. solve crimes d. help people recover their good health d184. clones of exception

6、al human beings _. a. would be under unknown psychological pressure b. would have different experiences and upbringing from ordinary people c. would allow us to ring einstein back to life d. may have different characteristics from the original d195. if we can be sure that the embryo will not be wast

7、ed, _. a. cloning to obtain stem cells would be acceptable to many people b. stem cells could develop into every other type of cell in the body c. cloning would need to be controlled by a voluntary code of practice or government regulations d. cloning can be used to create animals and crops a20part

8、5: detailed reading 1 read the passage and find the paragraphs which describe:1. when the structure of dna was discovered 2. how to clone something 3. four possible reasons for cloning 4. the disadvantages of cloning12, 34-74-721what are the four possible reasons for cloning and the disadvantages of

9、 cloning? discussion detailed reading 2 22reasons for cloning: it could be used as an optional treatment for couples who find it difficult to have children. 1. it could be used to reproduce the talents of exceptional human beings.233. it could be used to obtain a supply of stem cells, which can deve

10、lop into every other type of cell in the body. 4. it would be handy to clone in agriculture, for example, to resist bacteria. 24disadvantages: anyone who was a clone of one of their parents would be under unknown psychological pressure throughout their childhood. 1. a clone might choose a path in li

11、fe which is contradictory to the one the original one chose. he may even possess new vices instead of existing virtues. 253. the embryo would then be wasted, which many people find unacceptable. 4. to rely on a few cloned animals or crops would restrict the biodiversity of the breed. 26find out word

12、s that match the meanings: thin enough to be seen through (para 1) the same or exactly alike (para 3) can be chosen freely (para 4) can change or be changed to adapt to new needs (para 6) put into force by orders or by the law (para 6)transparentidentical optionalflexiblecompulsorydetailed reading 3

13、 27answer the questions about the words and phrases in the box. contradictory, controversial, regulations, handy, vices detailed reading 4 28 what regulations on cloning do some people think should be compulsory?2. why is taking stem cells from embryos controversial?3. how might a prize cow or clone

14、d crops be handy?4. what sort of vices might be unacceptable in a cloned person?to control the use of cloning. because the embryos might be wasted.they could resist bacteria and diseases.the same as in anyone else. 29language points 1. its certainly true that in 1953, watson and crick, two scientist

15、s at cambridge university, england, discovered the structure of the acid dna. its now certain that no clone is an exact copy because of differences in experiences and upbringing. 30解析：it is +adj. + that 从句it 做形式主语，由that 引导主语从句。 他以为饭后他每天散步是必然的。in his opinion, it is certain that he shouldtake a walk a

16、fter supper every day. 你能分析下面这个句子吗？ an italian doctor wants to offer cloning who find it difficult to have children. 312. under pressure under construction/repair under attack under control 在政府的严格控制下，资源浪费的现象减少了。 under strict control of the government, the waste of natural resources is in decline. 32

17、人们都说因为暴雨，现在那条高速现在正在修理。 its said that the highway is under repair due to the storm. 在巨大的压力之下，他的身体彻底垮了。under big pressure, he totally broke down. 333. 你能找出它们的共同之处吗？ a transparent ladder made of components of life (para.1)existing virtues (para.5) these cells would come from an embryo taken from the cl

18、one of someone. (para.6)共同之处在于：共同之处在于： 都使用了非谓语都使用了非谓语动词的形式作定语。动词的形式作定语。 344. the embryo would then be wasted, which many people find unacceptable. which引导定语从句，修饰the embryo would then be wasted整个句子，在从句中缺少find 的宾语。 eg: its reported that beckham will stay with the club until the end of the european sea

19、son, which will make this a permanent move. 355. what is clear is that some voluntary code of practice among scientists has to be agreed. what 引导主语从句，that 引导表语从句。已确认的就是他的确在大学获得了学位。what has been confirmed is that he did get his degree at university.36优势在于克隆可以为那些很难拥有自己的孩子的夫妇提供帮助。 the advantage is that cloning can be a help to those couples who find it difficult to have children. 37 did a man _ wang lin ring me up this morning? a. call b. calling c. calls d. called 2. did a man _ himself wang lin r