2020-2021学年高中英语(北师大版)必修5随堂演练：15-2-Grammar.docx

随堂演练
即时体验　巩固提升
单项填空
1．They ________ have arrived at lunchtime but their flight was delayed.
A. will B. can
C. must D. should
答案与解析　D　考查虚拟语气的用法。句意：他们本该午饭时到达，但他们的航班延误了。will have done将来可以完成； can have done“可能做过……吗？”表示对过去行为的怀疑，用于疑问句； must have done“肯定做过某事”，表示对过去事情的确定推想； should have done“原来应当做某事，而实际没做”。but their flight was delayed这样的结果，说明他们原来该到达却没有到达，因此选D项。
2．— Where are the children? The dinner's going to be completely ruined.
— I wish they ________ always late.
A. weren't B. hadn't been
C. wouldn't be D. wouldn't have been
答案与解析　A　考查虚拟语气的用法。句意：——孩子们哪儿去了？这顿饭快要吃不起来了。——我但愿他们不要老是迟到。wish引出虚拟语气，题干中消灭always，从句虚拟使用一般过去时。选A项。
3．Are you still here? You ________ home hours ago.
A. should go B. should have gone
C. might go D. may have gone
答案与解析　B　should后接动词完成式表示“原来应当做某事，结果未做”。
4．________ it rain tomorrow, we have to put off the visit to Yangpu Bridge.
A. Were B. Should
C. Would D. Will
答案与解析　B　为虚拟语气的倒装句，相当于If it should rain tomorrow“万一明天下雨”。
5．— Morning! Is there anything special in your mind?
— Yes. Here is the Lipton tea. Where can I find coffee?
— OK. That ________ also be on this shelf, across from the tea, madam.
A. would B. could
C. might D. should
答案与解析　D　句意：——早晨好！你有什么特殊的需要吗？——是的，利普顿茶叶在这儿了。咖啡在哪儿呢？——夫人，它也应当在这个橱子上，在茶那边。此句要用should表示推想，意为“应当”，语气没有must强，但比can, could, may, might强。