《2017-2018学年高中英语 unit 2 cloning section ⅰ warming up,pre-reading,reading & comprehending巩固提升 新人教版选修8》由会员分享，可在线阅读，更多相关《2017-2018学年高中英语 unit 2 cloning section ⅰ warming up,pre-reading,reading & comprehending巩固提升 新人教版选修8（6页珍藏版）》请在金锄头文库上搜索。
1、Unit 2CloningSection Warming Up,Pre-reading,Reading & Comprehending一、用所给单词的适当形式填空1His car (different) greatly from mine in colour,price and size.答案differs2However,some villagers strongly (objection) to developing chemical factories along the river.答案object3Dont be (cast) down.Just keep up your spiri
2、t.答案cast4All the parents agree (forbid) their children to go swimming in the river.答案to forbid5How long has the custom (obtain) here?答案obtained二、用下列词组的正确形式完成句子have a great impact ondiffer frombe identical withpay offon the other handobject toin favour ofcast down1Their language and customs ours as w
3、e are from different countries.答案differ from2Please make sure that the answers on your card should the ones on your test paper.答案be identical with3His wife is not the idea that he will make a profit in the stock market.答案in favour of4The researchers were after the death of the cloned dog,but they wo
4、uld keep on until they could succeed.答案cast down5Three years of studying hard on 9th June,and three months later I was accepted by a university.答案paid off6His parents firmly his going into the forest by himself.答案objected to7What the teachers have done their students in the future.答案has a great impa
5、ct on8On the one hand,we should ask for help;,we should try our best to rebuild our houses.答案on the other hand三、单句改错1Customs different in different countries.答案第一个differentdiffer2Three stones cast to the dog before it was driven out.答案cast前加were3The two-day break can release the students,but on the
6、one hand,the children may waste too much time on TV or Internet games.答案oneother4It can be difficult clone a tiger in a short time.答案clone前加to5His patience has paid back and he has won the match.答案backoff四、阅读理解 AThe United States government wants to know what the public thinks about its findings on
7、the safety of cloned animals.The Food and Drug Administration(FDA) says meat and milk from clones of adult cattle,pigs and goats are safe to eat.An FDA official called them “as safe to eat as the food we eat every day”.And when those clones reproduce sexually(有性繁殖),the agency says,their offsprings(后
8、代) are safe to eat as well.But research on cloned sheep is limited.So the FDA proposes that sheep clones not be used for humans food.The United States could become the first country to approve the sale of foods from cloned animals.First,however,the public will have ninety days to comment on three pr
9、oposed documents.On December 28th the FDA released a long report,called a draft risk assessment,along with two policy documents.The agency says it must receive comments by April 2nd.The FDA seemed ready to act several years ago,but an advisory committee called for more research.For now,the governmen
10、t will continue to ask producers to honour a request that they not sell foods from cloned animals.Clones are still rare.They cost a lot and are difficult to produce.The FDA says most food from cloning is expected to not come from clones themselves,but from their sexually reproduced offsprings.It say
11、s clones are expected to be used mostly as breeding animals to spread good qualities.Public opinion studies show most Americans do not like the idea of food from cloned animals.But this research also shows the public knows little about cloning.Cloning differs from genetic engineering.A cell taken fr
12、om a so-called donor animal is grown into an embryo(胚胎)in the laboratory.Next,the embryo is placed into the uterus(子宫)of a female animal.If the process is successful and the pregnancy reaches full term,a genetic copy of the donor animal will be born.1From the passage we know that .A.foods from clone
13、d animals are popular in America B.cloned adult animals are safe to eat except sheep C.cloned animals will be easy to produce D.most foods from cloning are expected to take place of other foods 答案B解析推理判断题。从文中第二段可推出,除克隆绵羊外,其他克隆动物吃起来是安全的。2The main purpose of the text is to .A.tell an interesting story
14、B.give some advice on foods C.give a reportD.compare different opinions 答案C解析主旨大意题。本篇文章是关于克隆食物的安全问题的报道。3Who believe(s) that most foods from cloning are safe to eat?A.Most Americans.B.An advisory committee.C.Critics.D.The FDA.答案D解析细节理解题。从第二段第一句“The Food and Drug Administration(FDA) says meat and milk
15、 from clones of adult cattle,pigs and goats are safe to eat.” 可知。4It can be inferred from the last paragraph that .A.cloning has much in common with genetic engineeringB.not every cell taken from a donor animal can grow into a genetic copy C.the donor animal should be a female one D.cloned animals grow faster than normal ones答案B解析推理判断题。从最后一段中的 “If the process is successful and the pregnancy reaches full term,a genetic copy of the donor animal will be born.”可知答
