1. Ann is so careful that she always goes over her exercises to _______________there are no mistakes.
A. look for B. make sure C. find out D. think about
30. ---Could you tell me _______?
---Sorry, I don’t know. I was not at the meeting.
A. what does he say at the meeting B. what did he say at the meeting
C. what he says at the meeting D. what he said at the meeting
[解析]答案：D。该题考查的是宾语从语的语序和时态。第一，宾语从句应用陈述句的语序；第二，表示“在会上所说的话”应用一般过去时。
[满分演练]
单项天空
29. I am waiting for my friend. _________, I will go swimming alone.
A. If he doesn’t come B. If he won’t come
C. If he will come D. If he is coming
[解析]答案：A。该题考查的是在时间状语从句里的时态。在时间状语从句里，通常用一般现在是代替一般将来时。
28. The students are sorry to hear that the famous singer _______ for half an hour.
A. has left B. has gone C. has been away D. has gone away
[解析]答案：C。该题考查的是延续性动词和非延续性动词的用法。因为本句中的时间状语是for half an hour，表示的是一段时间，所以应和延续性动词连用。四个选项中只有has been away能表示延续性的动作。
27. It _______ Yang Liwei about 21 hours _______ the earth 14 times in his spaceship.
A. spent, circling B. took, travelling
C. spent, to travel D. took, to circle
[解析]答案：D。该题考查的是动词的用法。本句子的结构是It took sb. some time to do sth. 只有D能用在这一结构中。
26. Since China has been a member of WTO, English is ________ useful than before.
A. more B. most C. much D. very
[解析]答案：A。该题考查的是形容词的比较级。在句末有than before字样，表明要用形容词的比较级，而useful的比较级是more useful, 所以应选more。
25. A talk on science _______ in our school next Monday.
A. will give B. will be given C. has given D. has been given
[解析]答案：B。该题考查的是动词时态和语态。时间状语是next Monday,所以动词应用一般将来时，因此应排除C和D。而主语是动作的承受者，所以应用被动语态。只有选项B正确。
24. There ________ a football match on TV this evening.
A. will have B. is going to be C. has D. is going to have
[解析]答案：B。该题考查的是动词have和句型there be的区别。
A, C, D都是句型there be 和动词have的混合，都是错误的。只有B一个选项正确。
23. I’m sure you know the difference _________ “look for” and “find”.
A. from B. for C. to D. between
[解析]答案：D。该题考查的是介词的用法。题干的意思是“我确信你知道‘look for’和‘find’两者之间地区别。“两者之间的”只能用between来
表示。
22. I’m reading now. Please tell him _______ the TV a bit.
A. turn up B. turn off C. to turn down D. to turn on
[解析]答案：C。该题考查的是短语动词辨析。题干所提供的语境是“我正在看书”，因此应告诉他把电视拧小一些。所以应选turn down。
