暑假网络助学工程英语答案.ppt

第十五讲 情态动词 主讲人：欧阳爱军 丹阳市第六中学 审稿人：王明霞 镇江市教育局教研室 Contents ★单项选择 ★ 完形填空 ★阅读理解 ★任务型阅读 单项选择 1. There was plenty of time. She ________. A. mustn’t have hurried B. couldn’t have hurried C. must not hurry D. needn’t have hurried 解析：B表示对过去否定的推测，不可能做了某事。C表示禁止做某事。D表示过去本没有必要做某事。 2. —Did Marry speak at the meeting? —I haven’t seen her this morning. She ________at the meeting. A. mustn’t have spoken B. couldn’t have spoke C. may not have spoken D. oughtn’t speak 解析：B表示对过去否定的推测“过去不可能在会议上发言”。否定推测只能用can或could。 C项表示可能不。D项为不应该做某事。 3. I was really anxious about you. You ________home without a word. A. wouldn’t have left B. needn’t leave C. shouldn’t have left D. mustn’t leave 解析：A项是虚拟语气；B项不必做某事；C项指过去本不该做某事，事实上做了，含有责备之意。其肯定形式表示过去本该做某事而事实上没做；D项指禁止做某事。 4. Oh, dear! What on earth ________this mean? A. could B. can C. may D. might 解析：can表示推测，一般用于否定句或疑问句。must/may/might主要用于肯定句，表示肯定的推测。 5.Who ordered that all of us________start at two tomorrow morning? A. should B. must C. have to D. need 解析：order后接从句，从句中谓语动词用should+动词原形。表命令、建议、要求等词后接从句，从句中谓语动词要用should+动词原形，should 可以省略。 6. We’d better hurry up. Our teacher ________ us. wait for B. must wait for C. must be waiting for D. has waited for 解析：表示对正在进行的动作肯定的推测。“我们老师肯定正在等我们”。 7. —Write to me when you get home. —________. A. I must B. I should C. I will D. I can 解析：祈使句肯定回答用 I will,否定回答用I won’t. 8. —I stayed at a hotel while in New York. —Oh, did you? You ________ with Barbaras. A. could have stayed B. could stay C. would stay D. must have stayed 解析：句意是你本可以和Barbaras呆在一起的，而事实上没有，是在宾馆的。A项表示虚拟，与过去事实相反。D项表示对过去肯定的推测。 9. —Excuse me, but I want to use your computer to type a report. —You ________ have my computer if you don’t take care of it. A. shan’t B. mightn’t C. needn’t D. shouldn’t 解析：情态动词shal