2. 外语
  3. If you didn’t know any better, you might think that Star, Snuppy, CC and ANDi were just a bunch of interesting names. You’d only

If you didn’t know any better, you might think that Star, Snuppy, CC and ANDi were just a bunch of interesting names. You’d only

admin2017-02-01  54
问题     If you didn’t know any better, you might think that Star, Snuppy, CC and ANDi were just a bunch of interesting names. You’d only be half right. These creative names【C1】______belong to a pig, a dog, a cat and a monkey that were among the first clones of their species.
    You’re likely already familiar with Dolly—the sheep that achieved near【C2】______status as the first mammal to be cloned successfully using adult animal cells. But Dolly is not alone. The world’s first clone—a tadpole—was actually created as early as in 1952. And at least a dozen different species have been cloned since: everything from the common cow to the【C3】______guar, 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 Administration’s(FDA)declaration in early 2008 that food products【C4】______from the clones of cows, pigs and goats are safe for human consumption【C5】______an already growing interest in the process.
    Cloning may have【C6】______uses besides its ability to help farmers【C7】______breed quality burgers and bacon. Other potential uses【C8】______the preservation of species, biomedical research, drug and organ production and even 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. There’s no official【C9】______of clones, and laboratories aren’t required to report every single tadpole or mouse they create. But armed with a bit of knowledge concerning animal cloning and its【C10】______it’s 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
【C2】
选项
答案H
解析 空格应为形容词、名词或分词，作定语修饰status。上文提到的几种克隆动物的名字不太为人所熟悉，而这里所讲的多利羊(Dolly)很多人知晓(familiar)，故此处选用celebrity，表明多利羊“很出名”。
转载请注明原文地址:https://kaotiyun.com/show/FqF7777K
0

大学英语六级

相关试题推荐
随机试题
最新回复(0)