631] The boy wanted to ride his bike in the street, but his mother told him _____.

[译文] 这孩子想在街上骑自行车，但是他的妈妈不许可。

　 A. not to 　 B. not to do

　 C. not do it 　 D. do not to

[答案及简析] A。 省略结构，不定式做宾补时，可以带不定式省略后面的相同部分。

630] ----- What made you so upset? -----_____ my house _____ saying goodbye.

[译文] --什么使你不安呀？　--Jim离开我家时没说再见。

　 A. Jim left; without 　 B. Jim’s leaving; instead of

　 C. That Jim left; without 　 D. Jim leaving; instead of

[答案及简析] C。 该句的回答是一个省略句，还原就是：That Jim left my house without saying goodbye made me upset.句子后面的相同部分省略了。

629] We’ve a lot of things to do. But _____ we must get some sleep.

[译文] 我们有许多工作要做；但首先我们必须睡觉。

　 A. at first 　 B. at once

　 C. first of all 　 D. the first thing

[答案及简析] C。 first of all= first 首先； at first= in the beginning最初。

628] You will be late ______ you leave immediately.

[译文] 除非你立即出发不然就晚了。

　 A. unless 　 B. until

　 C. if 　 D. or

[答案及简析] A。 unless 除非；until 到…为止。

627] ----- _______ in the workshop. Please stop it. ----- Sorry. I________.

[译文] --车间里不许吸烟。请灭掉。　　--对不起。我不知道。

　 A. Smoking is not allowed, don’t know 　 B. Not smoking, an not sure

　 C. Don’t smoke, have no idea 　 D. Smoking is forbidden, didn’t know

[答案及简析] D。 "不知道"　是在对方告诉之前，故需过去时。

626] _____ the moonlight they cooked the meat _____ an open fire.

[译文] 借着月光，他们在野外的篝火上烧肉。

　 A. To; over 　 B. From; in

　 C. In; near 　 D. By; near

[答案及简析] A。 by the moonlight 借着月光；on an open fire在野外的篝火上。

625] ----- What happened in that new area? ----- New houses ______ recently over there.

[译文] --那个新的地区发生了什么呀？　　--那里最近修起了许多新房屋。

　 A. are built 　 B. build

　 C. have built　　 D. have been built

[答案及简析] D。 考查时态。现在完成时态一般和yet, already, by this time, so far, recently, since, for a long time等副词连用。

624] What _____ their child fond of?

[译文] 他们的孩子喜欢什么？

　 A. do 　 B. does

　 C. are 　 D. is

[答案及简析] D。 be fond of 喜欢….

623] ----- We haven’t heard from Jane for a long time. ----- What do you suppose ______ to her?

[译文] --我们好久就没有收到Jane的来信了。　　--你认为她出了什么事？

　 A. was happening 　 B. to happen　

　 C. has happened 　 D. having happened

[答案及简析] C。 do you suppose 为插入语，本句应该与上句一样用完成时态。

622] I don’t think Mary and Sue _____ before, ______?

[译文] 我认为以前Mary 和 Sue没有见过面，是么？

　 A. have met; haven’t they 　 B. have met; have they

　 C. have seen; do I 　 D. have seen; don’t they

[答案及简析] B。 主句是第一人称，而且谓语动词是think, find, believe,make等，反意疑问句要和宾语从句一致；而且还得注意否定的转移问题。