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。

621] The visiting professor _____ giving lectures to students ______ invited to meetings at times.

[译文] 来访教授宁愿作讲座而不愿不时地被邀请参加会议。

　 A. preferred; to being　　 B. preferred to; rather than

　 C. preferred; than being 　 D. preferred; to being

[答案及简析] A。 考查句型：prefer doing sth to doing sth. 宁愿…..而不….。

620] Please tell me the way you thought of ______ the garden.

[译文] 请告诉我你想到的办法，照看园子的办法。

　 A. take care of 　 B. to take care of

　 C. taking care of 　 D. how to take care of

[答案及简析] B。 the way 的修饰语有两个，一个是定语从句，一个是不定式。

619] It’s nice _______ me with my lessons.

[译文] 谢谢你帮助我学习功课。

　 A. of you to help 　 B. for you to help

　 C. of you helping 　 D. for you helping

[答案及简析] A。 在该句型中如果主句中的形容词是表示逻辑主语的特点，那么介词就的用of，反之就用for。