基本信息
考点一 情态动词
1．—how's your new babysitter?
—we ________(not) ask for a better one. all our kids love her so much.
解析：句意：——你家的新保姆怎么样？——我们不能再要求一个比这个更好的保姆了，所有的孩子都非常喜欢她。can't/couldn't ask for a better one意为“不能要求一个更好的了”，也就是说“那是最好的”。
答案：can't/couldn't
2．i ________ worry about my weekend — i always have my plans ready before it comes.
解析：句意：我不必担心周末的事情——我总是在周末之前就做好了计划。needn't没有必要。
答案：needn't
3．—i don't really like james. why did you invite him?
—don't worry. he ________ not come. he said he wasn't certain what his plans were.
解析：句意：——我真的不怎么喜欢詹姆斯。你为什么邀请他？——别担心，他或许不会来。他说他还不能确定他的计划是什么。根据题干中的wasn't certain可知设空处表示不确定。
答案：may/might
4．if you ________ smoke, please go outside.
解析：句意：如果你非要抽烟，请到外面去。must用于条件句，表示“非要，偏要”。
答案：must
5．they ________ have arrived at lunchtime but their flight was delayed.
解析：句意：他们本应该在午餐时间到达，可是他们的飞机误点了。should have done表示过去本应该做某事而未做。
答案：should
6．if you ________ go, at least wait until the storm is over.
解析：句意：如果你偏要走，至少要等到暴风雨停了。must表示“非要，偏偏”，多指令人不快的事。
答案：must
7．we ________ have bought so much food now that suzie won't be with us for dinner.
解析：句意：既然苏西不和我们一起吃晚饭，我们本没必要买如此多的食物。needn't＋have done表示本没必要做某事，而实际上做了。
答案：needn't
8．i ________ thank you too much for all your help to my son while we were away from home.
解析：句意：我再怎么感谢你都不为过，因为我们不在家的时候你帮助了我的儿子。can't...too much表示“再……也不为过”。
