解析　inhonourof向......表示敬意；infavorof支持，赞同；inplaceof代替；incelebrationof庆祝。句意为：英国老师不知道感恩节是庆祝什么的。故选D项。

5．As he has been in a terrible state of mind these days，on no account ______achieve success in the coming English speech competition.

A．has he B．he has

C．will he D．he will

答案　C

解析　on no account绝不，否定意义词组在句首时，后面的句子用部分倒装，表示将来发生的事，故选C。

6．I'll go now. I won't __________ any more of your time.

A．hold up B．keep up

C．take up D．put up

答案　C

解析　hold up举起，支撑；keep up维持，继续；take up拿起，开始从事，占据(时间或空间)；put up举起。由句意知选C。

7．If I _____ preparations for my experiment this afternoon，I_____ to see the film with you last night.

A．were not to make；would have gone

B．were not making；would have gone

C．had not made；would go

D．did not make，would go

答案　A

解析　句意为：如果不是要为今天下午的实验做准备，昨天晚上我就和你去看电影了。这是虚拟条件句，由"this afternoon"可推断，从句表示与将来相反的虚拟语气，谓语动词用did/were to/should do；由"last night"推断，主句表示与过去相反的虚拟语气，谓语动词用would have done。故选A。

8．The successful candidate will be adaptable，take ownership of and develop in the role by taking initiative，being motivated and ______ high standards.

A．ensured B．to ensure

C．ensuring D．to be ensured

答案　C