1、課時分層作業(yè)(十)語言知識練習固基礎.單句語法填空1it's believed that taking a walk after supper is beneficial(benefit) to us.2plastic bags take years to break down, so don't just throw them out.3only a political solution could put an end to the violence(violent)4if everyone in the country knew(know) first aid，many

2、lives would be saved.5what struck me most in the movie was the father's deep love for his son.6she told me an incredible(credible) story about his grandmother catching a thief.7misunderstandings arising(arise) from lack of social communication may lead to serious problems.8the terrible storm wil

3、l probably knock out the electric service of the town.9nobody wants to make friends with the boy suspected(suspect) of having stolen money.10warned of danger in the street at night, she had to go home with a friend accompanying(accompany) her.單句改錯1it's very difficult for his parents to cure him

4、this bad habit.him后加of2i found my father sitting in his chair, completely absorbing in a magazine.absorbingabsorbed3you may rely on that he will come to pick you up.that前加it4the reason why he gave for his coming late is that he wasn't informed of it.whythat/which或去掉why5sometimes we can't res

5、ist persuaded to buy things we don't really need.persuaded前加being高考題型練習提能力.閱讀理解afour cloned sheep that are genetically the same as dolly，the first cloned mammal，are still healthy even in old age，a new study found.the four sheep could be considered dolly's clone “sisters”“they have just reach

6、ed their 9th birthday，which is age 70 in human years，”researchers who have been studying the sheep said.a detailed study of these four sheep and nine other cloned sheep that are not related to“the dollies”found that the animals were healthy.all of the sheep were free from many diseases commonly foun

7、d in older sheep，such as diabetes and high blood pressure，the study showed.dolly was born in 1996 as the result of a lab technique called somatic­cell neclear transfer(scnt)，in which the nucleus(細胞核) from an adult cell is put into an egg cell that doesn't have a nucleus.this meant that doll

8、y was a clone，genetically the same as the adult sheep from which the nucleus came.such a development means a lot to the cloning field.dolly lived to be 6.5 years old and died in 2003 from a type of lung cancer that is caused by a virus and affects sheep.before her death，dolly developed arthritis(關節(jié)炎

9、)at a relatively young age and had trouble waking.this caused concerns that clones might be at increased risk for age­related diseases，the researchers said.in the new study，13 cloned sheep underwent a series of health tests.the test results were normal for the sheep's age.some of the sheep

10、had signs of mild arthritis，but this would be expected in older sheep and was not detrimental，so none of the sheep needed treatment for the condition，the researchers said.the cloning process itself comes with a high risk of death in the fetus(胎兒)but for the clones that survive，the new data suggests

11、that“they are healthy and seem to age normally”【語篇解讀】本文講述了克隆羊多莉及其“姐妹”的情況。研究發(fā)現(xiàn)，那幾只跟克隆羊多莉的基因一樣的克隆羊沒有出現(xiàn)大的健康問題。1what do the findings of the new study mainly suggest?asheep can be genetically the same.bcloned animals can't live longer than normal ones.cscientists can help prevent diseases in cloned a

12、nimals.dcloned animals aren't at a higher risk for age­related health problems.d推理判斷題。根據第一段的“the first cloned mammal，are still healthy even in old age，a new study found”可知，這個研究表明年齡大的克隆動物患病的幾率并不會更高。2what do we learn about the sheep dolly from the text?aher birth led to the creation of scnt.b

13、her birth was a great scientific achievement.cher genes were unique when she was created.dher genes were created using a normal technique.b推理判斷題。根據第一段的“dolly，the first cloned mammal”以及第三段的“dolly was born in 1996 as the result of a lab technique called somatic­cell nuclear transfer(scnt)”可知，多莉的誕

14、生是一個科學上的巨大成就。3when dolly died，scientists most probably abecame worried about the health of cloned animalsbthought her death was caused by old agecfound a way to reduce the risk for age­related diseasesdlost interest in cloning animalsa細節(jié)理解題。根據第四段的“this caused concerns that clones might be at in

15、creased risk for age­related diseases”可知，多莉去世后，科學家們擔憂克隆動物的健康問題。4what does the underlined word“detrimental”in paragraph 5 mean?anew.bpersonal.charmful.dregular.c詞義猜測題。根據畫線詞后面的“none of the sheep needed treatment”以及那些羊沒有大的健康問題的語境，可知這里是指沒有“危害性的”狀況。bthe 1993 movie jurassic park wasn't the first

16、film to show dinosaurs(恐龍) in the modern world.but it did a good job of bringing the idea of cloning dinosaurs into popular culture.it represented dinosaur cloning in a way that made sense to a lot of people，and it was a successful film，making more than $900 million worldwide.jurassic park built on

17、the idea of getting dna from mosquitoes(蚊子) kept in amber.while this might seem possible at first sight，it's highly unlikely that scientists could find usable dinosaur dna in mosquito fossils(化石)scientists would need a very specific samplea female mosquito that had taken lots of dinosaur blood i

18、mmediately before being trapped(困住) in amber.since fossilization in amber is a relatively rare event，the chances of this happening are pretty small.the lack of possible samples isn't the only problem.most insect fossils found in amber are also too young to contain dinosaur blooddinosaurs were go

19、ne by the time the insects became trapped.many insects went bad from the inside out after they were trapped，leaving nothing inside for scientists to try to find.finally，the sample would have to be very intact，since dna can break down quickly in the presence of water.but if researchers did find a per

20、fectly kept mosquito with a body full of dinosaur blood，bringing back its dna would still be difficult.the blood with the dinosaur dna would be surrounded by the body of an insect，which has its own dna.there could also be dna from other cells trapped in the amber.then，of course，there's the dna i

21、n the laboratory itselfand in the body of the scientist.【語篇解讀】本文是議論文。文章以電影侏羅紀公園引出克隆恐龍的話題，并論述了克隆恐龍的不可能性。5why is the film jurassic park mentioned at the beginning?ato lead into the topic of cloning dinosaurs.bto encourage scientists to clone dinosaurs.cto give a simple introduction to dinosaurs.dto stress the possibility of cloning dinosaurs.a細節(jié)理解題。根據第一段中的“it did a good job of bringing the idea of cloning dinosaurs into popular cultu