人教课标版高二英语下册选修8Unit2Warming up 共20张

1、Unit 2 cloning using language,The Return of the Dinosaurs,Answer the following questions,1.Have you ever seen the film Jurassic,Park,Do people like this film,What animals do you see in the film,Are they real dinosaurs,Warming up ( 4ms,2.Do you like dinosaurs,Can you see them in our real life,Why,War

2、ming up ( 4ms,3. Do you think it is possible to clone,dinosaurs,If not,why,If yes, do you think thats good,for human beings? Why,Warming up ( 4ms,Read the text, then tell the following sentences are,true or false,Students can discuss in pairs.,1,Scientists are still experimenting with,cloning mammal

3、s because they think it can,make money,2,The animals that have disappeared from,the earth, like dinosaurs, can be brought,back to life through cloning,3,If we can clone any extinct animals, we,should let them live in a zoo,F,F,F,Give some reasons why,it is either impossible or,unsuitable to clone,ex

4、tinct animals,Reason 1,Reason 2,Reason 3,You need perfect DNT,There is not enough diversity for cloned,animals to overcome new diseases,It would be unfair to clone any extinct,animals if they would have to live in a zoo,Advantage of diversity,Disadvantage of diversity,Diversity in a group of cloned

5、animals,If there is a new illness,some of these animals,may die ,but others will,survive and passed on the,ability to resist that,disease to their children,They would all have the same,arrangement of genes and so,they might all die of the same,disease,Reading,II Detail reading ( 6ms,Read the text, t

6、hen answer the following,questions,Students can discuss in pairs.,1,Why shouldt you clone an extinct animal,unless there is enough diversity in the group,2,Why is it wrong to clone an extinct animal if,it would have to live in a zoo,3,Why cant you clone the DNA of animals,that have been extinct long

7、er than 10,000,years,1,Why shouldt you clone an extinct,animal unless there is enough diversity,in the group,There will not be enough genetic variation,遗传变异,in the group to be able to resist,new illnesses,2. Why is it wrong to,clone an extinct animal if,it would have to live in a,zoo,It is not a goo

8、d idea to clone an,animal that would have to live in a,zoo because it is not a suitable,habitat to develop and increase its,numbers.The zoo is not a natural,environment for a wild animal,3. Why cant you clone the,DNA of animals that have,been extinct longer than,10,000 years,The DNA of animals more

9、than 10,000,years old is not suitable for cloning ,for it,cant survive so long,Reading,III Argument ( 10ms,1. Read the passage again and have a argument,according to the requirement of Ex.2 on Page 16,2. Students work in groups, when discussing, the,head of each group should write down the opinions,

10、of all the members,3. Ask some volunteers to show their opinions,Language points,1.The popularity of the film proves,how,interested ordinary people are in the subject,popular,popularity,2,a long way from doing sth,3. Do/make/carry out/perform an experiment,on/in/with,做,实验,对,做实验,4.from time to time,有

11、时；偶尔；时常,5.bringback to life,使复生,6.Diversity in a group,means,having,animals with their genes,arranged,in,different ways,mean doing sth,have sth. done,7.but others will survive and,pass on,the ability,to,resist that disease,to,their children,pass onto,传递,留给,当堂检测,1.The genes of the cloned animal are s

12、o arranged that it,cannot _such a disease , so it soon died,A. keep B. stop C. exist D. resist,2. You have to be firm, but _you should be sympathetic,A. from time to time B. at one time,C. at a time D. in time,3. He said nothing, _smiled and watched her,A. most B. merely C. generally D. hardly,4. Al

13、l their hard work has _! The house is finished at,last,A. paid back B. paid for C. paid off D. paid,5. Further information can be _from our head office,A. obtained B. achieved C. resisted D. proved,6.Allen and I are in the same history class, but his,assignment differs _ mine,A. on B. from C. in D.

14、to,7. The two sides in the dispute still differ _each other,_the question of pay,A. on; with B. with; on C. at; with D. from; in,8. As we are very busy these days, we might _this,urgent work for the time being,A. undertake B. agree C. employ D. charge,9. It is very_ that there has been an increase i

15、n crime in,the last six months,A. disturbed B. disturbing,C. disturb D. being disturbed,10. Her father_ her to go out alone,A. hoped B. allowed C. forbade D. permitted,11. We hope there will be a new_ in high-technology in,China,A. breakdown B. breakup,C. breakthrough D. breakout,12. Dust _in a room if we do not clean the room,regularly,A. accomplishes B. accumulates,C. accommodates D. achieves,13.They strongly object to _the plan,A. giving up B. give up