专题五 | 情态动词和虚拟语气 Ⅰ.单句语法填空 1．(2017·天津高考)My room is a mess, but I _____clean it before I go out tonight. I can do it in the morning. 答案：needn't 根据下文“I can do it in the morning”可知，“我”可以早上搞卫生，因此晚上没有必要打扫房间了，故填needn't。 2．(2017·北京高考)Samuel, the tallest boy in our class, _____ easily reach the books on the top shelf. 答案：can 表示能力用can。句意：我们班最高的男孩塞缪尔能够轻松够到顶层架子上的书。 3．(2018·江苏高考)It's strange that he _____ have taken the books without the owner's permission. 答案：should 此处should作情态动词，表示“竟然”，符合句意。句意：很奇怪，他竟然未经主人同意就拿走了那些书。 4．(2019·江西五校联考)It has been accepted that all the students _____ put on masks before going to school in case they are infected with flu virus. 答案：shall 在第三人称作主语的陈述句中，shall可表示规定、命令。 5．(2018·北京高考)In today's information age, the loss of data _____ cause serious problems for a company. 答案：can can在此表示客观可能性，意为“可能会，有时候会”。句意：在如今的信息化时代，丢失数据可能会给一个公司造成严重的问题。 6．_____ you succeed in your future career! 答案：May 有些祝愿语的话以may开头。may sb./sth. do sth. “愿某人/某事做某事”。句意：祝你在以后的事业中取得成功！ 7．(2019·安徽黄山质检)—I'm afraid I have to leave now，for you see, he is waiting for me. —Well, if you _____， at least wait till the heavy rain stops. 答案：must 根据语境可知填must，意为“偏要；非得”。句意：———恐怕现在我不得不离开了，因为你知道，他在等我。———好的，如果你非得走，至少要等到大雨停了再走。 8．Since nobody gave him any help, he _____ have done the research on his own. 答案：must 根据题干中“Since nobody gave him any help”可判断设空处表示肯定的推测。句意：既然没有人帮助他，他一定是独自完成了这项研究。 9．That man _____ be our head teacher. He has gone to Indonesia and is supposed to be back in two days' time. 答案：can't can't是对某一情况极有把握的否定推测。句意：这个人不可能是我们的校长，他去印度尼西亚了，应该在两天后返回。 10．_____ it have been the failure to pick up directions from the ground control that caused the air crash? 答案：could could have done可表对已发生之事的推测，此处是其一般疑问句结构。句意：此次空难是不是因为飞机无法接收地面控制中心的指令造成的？ 11．We _____ as well stay at home. It is raining so hard. 答案：might/may might/may as well意为“倒不如……，还是……为好，最好还是……”，是固定搭配，符合语境。句意：我们倒不如待在家里，雨下得很大。 12．—I've told Nancy many times about the meeting, but she still forgot it! —I understand. Actually, anyone _____ be very forgetful at times. 答案：can can可用来表示客观可能性。句意：———我多次告诉南希关于会议的事情，但她还是忘了！———我了解。事实上，任何人偶尔都会健忘。 13．When I was young, I _____ sit at the entrance of our village, waiting for father to come back from work. 答案：would would可表示过去习惯性的动作。句意：我小时候总是坐在村口，等待父亲下班回家。 14．If you think the price of ... ...
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