Unit 3 Computers Language points课时作业

一、单项填空(共15小题；每小题2分，满分15分)

1. From 650 to 323 BC the Greek civilization made advances in various fields that ________ the world ever since and will continue to do so.

A. influenced B. have influenced

C. had influenced D. are influencing

答案　B　[句意：从公元前650年到公元前323年，希腊的文明在不同的领域取得了进步，自那时起这些进步就影响着世界并且将一直影响下去。根据句意和句子中的"ever since"可知，此处表示过去的动作对现在的影响，故谓语动词要用现在完成时。]

2. It is almost always the case that the police conduct an investigation and look at the evidence that may suggest who ________ the offence.

A. commits B. commit

C. committed D. will commit

答案　C　[句意：事情几乎总是这样的：警察进行调查，然后仔细察看可能表明是谁犯了罪的证据。此处表示commit的动作发生在过去，所以要用一般过去时。]

3. China's Silk Road Economic Belt，________ accomplished，will quicken the economic growth of the countries along the route.

A. unless B. though

C. once D. as

答案　C　[句意：中国的丝绸之路经济带一旦建成，将会加快沿线国家的经济增长。分析句子结构可知，此处考查的是状语从句的省略，表示"中国的丝绸之路经济带一旦建成"，故once"一旦"符合语境。unless"除非，如果不"；though"尽管"；as"随着，因为"。]

4. ________ individual players，we have a great team but the problem is that they don't play football together well at all.

A. On top of B. By means of

C. In terms of D. In case of

答案　C　[句意：就运动员个人而言，我们有一支很优秀的球队，可问题是他