英语

　　1.He has made a discovery ( ) of great importance to the progress of science and technology.

　　A. which I think it is

　　B. which I think is

　　C. I think which is

　　D. of which I think it is

　　【答案】B。考查定语从句。该句中discovery是先行词，放到句子中是I think the discovery is of great importance。不需要it，故选项B正确。A项多了个it，排除;C项语序错误，排除;D项不符合英语表达，排除;答案选B。

　　2.( ) might be expected the response to the question was very mixed.

　　A. It

　　B. As

　　C. That

　　D. What

　　【答案】A。考查主语从句。根据对题干的成分分析，可知主语是由一个完整句子组成，整个题干形成了主语从句，题干中，expected后面省略了引导宾语从句的that，很明显整个句子是个主语从句，it在这里充当形式主语，放在句首，故答案选A。

　　3.( ) more care, the flowers might have grown much better than now.

　　A. Having given

　　B. Giving

　　C. To give

　　D. Given

　　【答案】D。考查非谓语动词，主语是flowers，花与照料、打理逻辑上是被动关系，在选项中A、B是主动形式，C是不定式，只有D是被动的，故D选项正确。