10. 【解析】第八句中的what改为which。考查非限制性定语从句。此处为非限制性定语从句, 指代前面的整个内容用which, 故要将what改为which。

Ⅴ. 微写作

　　根据下面内容写一篇80词左右的短文。

人们在克隆技术上分歧(differ)相当大。一些人支持(in favour of)它的发展, 由于克隆会对我们有益, 并且是科学上的伟大突破(breakthrough); 然而(while)另外一些人反对(object)研发克隆, 因为它会对人类造成危害。在我看来, 只要所有的人承诺(undertake)合理使用, 克隆将会有很大的回报(pay off), 并给人类带来巨大的影响(impact)。

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【参考范文】

People differ greatly in cloning technique. Some are in favour of the development of cloning, for it can benefit us and it is a great scientific breakthrough while others object to developing it for the harm that it can do to human beings. In my opinion, cloning will pay off on assumption that all undertake to use properly, and it will have a great impact on human beings.