Unit 2 Cloning 新知预习 Ⅰ.词汇点兵
预习本单元词汇，完成下列测评项目。 1．The brothers
(与……不同) widely in their tastes. 2．This question is quite
(简单),while that one is much more complicated. 3．It is quite
(令人不安) to hear the bad news. 4．Smoking is
(禁止) in public places. 5．His suggestion sounds quite
(合情合理) to most of us. 6．The film was a
(商业的)success. 7．I’d like to come, too, if you have no
(反对). 8．He
(仅仅) asked us our names. 9．There were strong
(争论) for and against the plan. 10．He always managed to
(得到) what he wanted. 答案:1.differ 2.straightforward 3.disturbing 4.forbidden5.reasonable 6.commercial 7.objection 8.merely9.arguments 10. obtain Ⅱ.词组活用 cast down pay off in favour of from time to timebe bound to 1. She was
by her husband’s death. 2. My uncle comes to have dinner with us
. 3. He has been working so hard at his lessons, so he
pass the exam this time. 4. Finally his efforts
. 5. All of them were strongly
the project. 答案:1.cast down 2.from time to time 3.is bound to4.paid off 5.in favour of Ⅲ.语篇领悟 阅读课文，从每题所给的四个选项(A、B、C和D)中选出最佳选项。 Text A 主旨大意 1.The main idea of the text is
. A. animal cloning is very valuable and can benefit the world B. animal cloning could be misused by bad people so it must be forbidden C. animal cloning is well developed because Dolly the sheep was born D. animal cloning raised arguments and scientists are not sure about its future 答案:D 细枝末节 2. Which of the following statements about cloning is NOT true according to the text? A. Cloning is something that has been developed quite recently. B. Twins that look exactly the same are originally from the same egg. C. Cloning is used by gardeners to make more money. D. Animal cloning is much more difficult than plant cloning. 答案:A 3. The cloning of Dolly the sheep succeeded because
. A. it’s easier to clone a sheep than other animals B. the scientists were determined and worked hard with patience C. the scientists were rewarded and got lots of money D. many other attempts to clone mammals failed 答案:B 4. The lamb is the clone of the cell from sheep B because
. A .it provides the the egg cell B. it gives birth to the lamb C. it provides the nucleus D. it is a female sheep 答案:C 推理判断 5. The sheep that donated the somatic cell most probably lived
years. A.3 B.6 C.9 D.12 答案:D Text B 主旨大意 6. The writer of the text
. A. is excited by the possibility of cloning fiece and extinct animals B. believes that extinct animals can be brought back to life by cloning C. thinks it impossible or unsuitable to clone extinct animals like dinosaurs D. dreams of dinosaurs returning to the earth 答案:C 细枝末节 7. The film Jurassic Park is popular because
. A. people are interested in the subject of cloning B. all the actors are dinosaurs C. it was directed by a scientist who clones dinosaurs D. it proves very interesting 答案:A 8. Which of the following is true? A. Mice were cloned in 1981. B. Dolly the sheep was the first cloned animal. C. The name of the cloned cow is “Bison”. D. China was successful in cloning mammals. 答案:D 9. The reasons why a group of cloned animals all die of the same illness do NOT include
. A. they have the same arrangement of genes B. there isn’t enough diversity in the group for it to overcome illnesses C. the illness is a new one D. their arrangement of genes can not resist that new disease 答案:C 推理判断 10. We can infer from the text that
. A. scientists are experimenting to clone dinosaurs B. dinosaurs will never return to the earth C. cloned animals will only live in the zoo D. the DNA of dinosaurs can only survive 10 000 years 答案:B
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