Question

【题目】Cloning has always been with us and is here to stay. It is a way of making 【1】 exact copy of another animal or plant. Cloning plants is straightforward while cloning animals is very complicated. The process of cloning is a difficult task 【2】(undertake) Many attempts to clone mammals failed. But finally the determination and patience of the scientists paid 【3】 in 1996 with a breakthrough-the cloning of Dolly the sheep.

At first the fact 【4】 she seemed to develop normally was very encouraging. Then came the 【5】(disturb) news that Dolly had become seriously ill, which made cloning scientists cast down. Meanwhile, Dolly’s appearance raised a storm of 【6】(object) and had a great impact on the media and public imagination. 【7】(apparent) it became controversial. Although at present human egg cells and embryos 【8】(need)for cloning research are hard to obtain, newspapers wrote of evil leaders 【9】(hope) to clone themselves to attain their ambitions. Religious leaders also raised moral questions. Some countries reformed their legal systems and 【10】(forbid) research into human cloning, but others like China and the UK, continued to accumulate evidence of the abundant medical aid that cloning could provide.

Answer 1

【答案】

【1】 an

【2】 to undertake

【3】 off

【4】 that

【5】 disturbing

【6】 objections

【7】 Apparently

【8】 needed

【9】 hoping

【10】 forbade

【解析】

文章介绍了克隆的产生与发展。

【1】考查冠词。此处表示做另一只动物或植物的复制品，所以用不定冠词，exact 为元音开头，所以用an。

【2】考查不定式。此处表示是一项很难进行的任务。此处要用to undertake 做task的定语。

【3】考查固定短语，此处表示有了回报所以用pay off。

【4】考查从句连词。此处从句是解释fact的内容，为同位语从句，从句句子完整，不缺成分，不缺意义，所以用从属连词that 引导。

【5】考查现在分词。此处修饰news，表示烦人的消息，形容事物用现在分词。

【6】考查名词。Of 为介词，后缺宾语，因此要用名词作宾语，另外反对不止一个，所以用复数。

【7】考查副词。此处作状语，表示明显地，它变得有争议，所以用副词apparently。

【8】考查非谓语动词。此句谓语为are，表示克隆研究需要的卵细胞和胚胎，因此需要与卵细胞和胚胎之间是被动关系，所以用过去分词。

【9】考查非谓语动词。此处做of 的宾语，evil leader 与hope 之间是主动关系，所以用现在分词。

【10】考查谓语。此处and 连接前后两个谓语，表示改革法律体系，禁止克隆人的研究，因此与reformed 并列，所以用forbade。