大学英语六级改革适用（阅读）-试卷183及答案解析.doc

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1、大学英语六级改革适用（阅读）-试卷 183及答案解析(总分：100.00，做题时间：90 分钟)一、Reading Comprehensio(总题数：5，分数：100.00)1.Part III Reading Comprehension（分数：20.00）_2.Section A（分数：20.00）_Once they decided to have children, MiShel and Carl Meissner tackled the next big issue: Should they try to have a girl? It was no small matter. MiS

2、hels brother had become blind from a hereditary(遗传的)condition in his early 20s, and the Meissners had learned that the condition is a 1passed from mothers to sons. If they had a boy, he would have a 50 per cent chance of having the condition. A girl would be 2 The British couples 3about gender selec

3、tion led them to Virginia, US where a new sperm(精子)-separation technique, called MicroSort, was under 4When MiShel became pregnant, she gave birth to a daughter. They will try to have a second daughter using the technique later this year. This is not only a 5effective way to select a childs gender.

4、It also brings a host of ethical(伦理的)and practical considerationsespecially for the majority of families who use the technique for 6reasons. The clinic offers sex selection for two purposes: to help couples 7passing on a gender-linked 8disease and to allow those who already have a child to “balance“

5、 their family by having a baby of the opposite sex. The technology is still 9However, Blauer says the company has an 10success rate: 91 per cent of the women who become pregnant after sorting for a girl are successful, while 76 per cent who sort for a boy and get pregnant are successful. A)genetic B

6、)overlapped C)impressive D)unaffected E)perpetually F)investigation G)inquiries H)feats I)disorder J)gropes K)experimental L)seemingly M)elicit N)nonmedical O)avoid（分数：20.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_Its a good idea to apply sunscreen before heading to the

7、 beach if you dont want to burn. But for marine animals like whales, they dont have that 1Species like sperm whales can spend up to six hours at the oceans surface in between dives, 2in the sunlight. So how do they protect themselves from a serious case of sunburn? It turns out that their bodies hav

8、e a similar defense 3against the suns UV radiation as people. Blue whaleswhich have the lightest skin color of the three speciestan during their summer stay before 4, back to their northern feeding grounds. Sperm whales dont tan. They can receive an “overdose“ of UV radiation during their hours at t

9、he oceans surface, and they have proteins that 5protect their cells from UV damage. This process is 6to how human bodies produce antioxidants in response to molecules that can cause a lot of genetic and cellular damage. And fin whales escape sun damage thanks to their high levels of melanina dark su

10、bstance in the skin to protect humans from UV radiation. Older whales and whales with less 7of melanin in their skinlike blue whaleshad the greatest level of damage in their mtDNA. Fin whales, which had the greatest amount of melanin, had the least amount of mtDNA damage. Now that the ozone layer th

11、at shields Earth from UV radiation is gradually 8its important to know what the consequences are for whales and dolphins, especially for 9or endangered species. Although its difficult to tell what causes many of these skin conditions, UV damage is one cause. Even though whales have 10defenses to UV

12、radiation, high exposure can still be harmful. A)similar B)diminishing G)liability D)migrating E)mutual F)mechanism G)effectively H)jerking I)instantaneously J)vulnerable K)content L)baking M)inherent N)perspective O)option（分数：20.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项

13、1:_If you didnt know any better, you might think that Star, Snuppy, CC and ANDi were just a bunch of interesting names. Youd only be half right. These creative names 1belong to a pig, a dog, a cat and a monkey that were among the first clones of their species. Youre likely already familiar with Doll

14、ythe sheep that achieved near 2status as the first mammal to be cloned successfully using adult animal cells. But Dolly is not alone. The worlds first clonea tadpolewas actually created as early as in 1952. And at least a dozen different species have been cloned since: everything from the common cow

15、 to the 3guar, a type of wild ox. Animal cloning has come a long way since that first tadpole more than 50 years ago. The U.S. Food and Drug Administrations(FDA)declaration in early 2008 that food products 4from the clones of cows, pigs and goats are safe for human consumption 5an already growing in

16、terest in the process. Cloning may have 6uses besides its ability to help farmers 7breed quality burgers and bacon. Other potential uses 8the preservation of species, biomedical research, drug and organ production and even commercial ventures. It seems that finding out exactly how many cloned animal

17、s have been produced is almost as difficult as producing them in the first place. Theres no official 9of clones, and laboratories arent required to report every single tadpole or mouse they create. But armed with a bit of knowledge concerning animal cloning and its 10its likely to narrow down the co

18、ntestants to a possible field. A)inclusive B)derived C)applications D)actually E)additional F)intensified G)visualized H)celebrity I)include J)typically K)compromise L)endangered M)registry N)duplicates O)consistently（分数：20.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_大学英

19、语六级改革适用（阅读）-试卷 183答案解析(总分：100.00，做题时间：90 分钟)一、Reading Comprehensio(总题数：5，分数：100.00)1.Part III Reading Comprehension（分数：20.00）_解析：2.Section A（分数：20.00）_解析：Once they decided to have children, MiShel and Carl Meissner tackled the next big issue: Should they try to have a girl? It was no small matter. M

20、iShels brother had become blind from a hereditary(遗传的)condition in his early 20s, and the Meissners had learned that the condition is a 1passed from mothers to sons. If they had a boy, he would have a 50 per cent chance of having the condition. A girl would be 2 The British couples 3about gender sel

21、ection led them to Virginia, US where a new sperm(精子)-separation technique, called MicroSort, was under 4When MiShel became pregnant, she gave birth to a daughter. They will try to have a second daughter using the technique later this year. This is not only a 5effective way to select a childs gender

22、. It also brings a host of ethical(伦理的)and practical considerationsespecially for the majority of families who use the technique for 6reasons. The clinic offers sex selection for two purposes: to help couples 7passing on a gender-linked 8disease and to allow those who already have a child to “balanc

23、e“ their family by having a baby of the opposite sex. The technology is still 9However, Blauer says the company has an 10success rate: 91 per cent of the women who become pregnant after sorting for a girl are successful, while 76 per cent who sort for a boy and get pregnant are successful. A)genetic

24、 B)overlapped C)impressive D)unaffected E)perpetually F)investigation G)inquiries H)feats I)disorder J)gropes K)experimental L)seemingly M)elicit N)nonmedical O)avoid（分数：20.00）填空项 1:_ （正确答案：I）填空项 1:_ （正确答案：D）填空项 1:_ （正确答案：G）填空项 1:_ （正确答案：F）填空项 1:_ （正确答案：L）填空项 1:_ （正确答案：N）填空项 1:_ （正确答案：O）填空项 1:_ （正确答

25、案：A）填空项 1:_ （正确答案：K）填空项 1:_ （正确答案：C）解析：解析：空格处应为 success rate的修饰语，可为名词、形容词或动词分词，an 表明该词以元音开头。根据冒号后的数据 91和 76，可知成功率很高，故填入 impressive“给人印象深刻的，令人赞叹的”。Its a good idea to apply sunscreen before heading to the beach if you dont want to burn. But for marine animals like whales, they dont have that 1Species

26、like sperm whales can spend up to six hours at the oceans surface in between dives, 2in the sunlight. So how do they protect themselves from a serious case of sunburn? It turns out that their bodies have a similar defense 3against the suns UV radiation as people. Blue whaleswhich have the lightest s

27、kin color of the three speciestan during their summer stay before 4, back to their northern feeding grounds. Sperm whales dont tan. They can receive an “overdose“ of UV radiation during their hours at the oceans surface, and they have proteins that 5protect their cells from UV damage. This process i

28、s 6to how human bodies produce antioxidants in response to molecules that can cause a lot of genetic and cellular damage. And fin whales escape sun damage thanks to their high levels of melanina dark substance in the skin to protect humans from UV radiation. Older whales and whales with less 7of mel

29、anin in their skinlike blue whaleshad the greatest level of damage in their mtDNA. Fin whales, which had the greatest amount of melanin, had the least amount of mtDNA damage. Now that the ozone layer that shields Earth from UV radiation is gradually 8its important to know what the consequences are f

30、or whales and dolphins, especially for 9or endangered species. Although its difficult to tell what causes many of these skin conditions, UV damage is one cause. Even though whales have 10defenses to UV radiation, high exposure can still be harmful. A)similar B)diminishing G)liability D)migrating E)m

31、utual F)mechanism G)effectively H)jerking I)instantaneously J)vulnerable K)content L)baking M)inherent N)perspective O)option（分数：20.00）填空项 1:_ （正确答案：O）填空项 1:_ （正确答案：L）填空项 1:_ （正确答案：F）填空项 1:_ （正确答案：D）填空项 1:_ （正确答案：G）填空项 1:_ （正确答案：A）填空项 1:_ （正确答案：K）填空项 1:_ （正确答案：B）填空项 1:_ （正确答案：J）填空项 1:_ （正确答案：M）解析：解析

32、：空格在名词之前，应为名词、形容词或分词作定语。由上文可知，鲸鱼体内有类似防晒霜的保护机制，因此鲸鱼抗紫外线辐射的能力是自身就有的，故此处用 inherent最合适。If you didnt know any better, you might think that Star, Snuppy, CC and ANDi were just a bunch of interesting names. Youd only be half right. These creative names 1belong to a pig, a dog, a cat and a monkey that were

33、among the first clones of their species. Youre likely already familiar with Dollythe sheep that achieved near 2status as the first mammal to be cloned successfully using adult animal cells. But Dolly is not alone. The worlds first clonea tadpolewas actually created as early as in 1952. And at least

34、a dozen different species have been cloned since: everything from the common cow to the 3guar, a type of wild ox. Animal cloning has come a long way since that first tadpole more than 50 years ago. The U.S. Food and Drug Administrations(FDA)declaration in early 2008 that food products 4from the clon

35、es of cows, pigs and goats are safe for human consumption 5an already growing interest in the process. Cloning may have 6uses besides its ability to help farmers 7breed quality burgers and bacon. Other potential uses 8the preservation of species, biomedical research, drug and organ production and ev

36、en commercial ventures. It seems that finding out exactly how many cloned animals have been produced is almost as difficult as producing them in the first place. Theres no official 9of clones, and laboratories arent required to report every single tadpole or mouse they create. But armed with a bit o

37、f knowledge concerning animal cloning and its 10its likely to narrow down the contestants to a possible field. A)inclusive B)derived C)applications D)actually E)additional F)intensified G)visualized H)celebrity I)include J)typically K)compromise L)endangered M)registry N)duplicates O)consistently（分数：20.00）填空项 1:_ （正确答案：D）填空项 1:_ （正确答案：H）填空项 1:_ （正确答案：L）填空项 1:_ （正确答案：B）填空项 1:_ （正确答案：F）填空项 1:_ （正确答案：E）填空项 1:_ （正确答案：O）填空项 1:_ （正确答案：I）填空项 1:_ （正确答案：M）填空项 1:_ （正确答案：C）解析：解析：空格在形容词性物主代词 its后，应为名词。本句说的是找到更多克隆动物的方法，那就要具备这方面的相关知识，此处应选用 applications，填入文中意为“只要掌握一点关于克隆及其应用的知识，就能缩小找寻被克隆的动物的范围”。