一、选择题1．—Look! Mrs. Smith is standing in front of the teaching building.—It______ her. She has gone to Egypt for her holiday.A．must be B．mustn’t be C．can be D．can’t be 2．—I’d like ________ Guo Jingming’s Tiny Times.—You had better________ his books. The stories he tells are far from real life.A．buying, don’t read B．to buy, not readC．buying, not read D．to buy, not to read3．You have finished most of the work, so you ____ start working so early tomorrow. You may come at 9 :00.A．can't B．mustn't C．needn't D．couldn't 4．Since you are very tired, you ______ finish the work today.A．needn’t B．may not C．mustn’t D．can’t5．All passengers_____ go through safety check before they take a plane.A．may B．can C．must D．need6．A: Is Jim coming by train?B: I’m not sure. He _______ drive his car.A．must B．may C．need D．should 7．From March 23rd, 2013, anyone under the age of 14 ________ go into Disneyland alone. A．couldn’t B．mustn’t C．needn’t D．mightn’t 8．—Can I take some milk and biscuits to the reading room?—No, our school has a rule that students _______ eat or drink there.A．can’t B．mustn’t C．needn’t D．may not 9．— Mom, I got a big box from express(快递). What is it?—I’m not sure. It ________be a present from your grandmother.A．should B．might C．must D．will 10．—Have you heard about the temperature of the earth will rise to 59℃ in 2020?—Don’t worry! The news _______ be true.A．must not B．may not C．needn’t D．will not 11．He like coffee. I see him drink a cup at times.A．must B．may C．can’t D．mustn’t 12．Even the top student can't work out this problem, so it________ be too difficult. A．must B．may C．can D．need 13．—Jack must be in his office, I think.—No, he be in the office. He flew to Canada this morning.A．needn't B．shouldn't C．can't D．mustn't 14．It’s raining all day, so I ________ stay at home.A．can’t B．has to C．have to15．The flowers ________ every day, or they will die.A．must water B．can be wateredC．should water D．must be watered16．---I heard they went skating in the mountains last winter.---It ______ true because there was little snow there.A．may not be B．won’t be C．couldn’t be D．will be 17．—The food ________be delicious . You ate it up .—You bet . My mum cooked it for me .A．must B．may C．can D．need18．一Hurry up, Mark! Let's cross the road as quickly as possible.一No，you . Don't you see the light is still red?A．couldn't B．wouldn't C．mustn't D．needn't19．— May I watch TV for a while?— No, you __________. You have to finish your homework first.A．can’t B．needn’t C．mustn’t D．won’t20．My head teacher has made a set of rules to show what we students ________ and ________ not do in class.A．must; must B．will; willC．need; need D．might; might21．—I often see Maria in the library, and she _________ like reading best.—That’s right.A．need B．may C．must D．can22．You __ drive your car so fast. It's very dangerous.A．wouldn't B．shouldn't C．couldn't D．mightn't【参考答案】***试卷处理标记，请不要删除一、选择题1．D解析：D【解析】【分析】【详解】句意：——看！史密斯太太正站在教学楼的前面。
——不可能是他。
她去埃及度假了。
考查情态动词表示推测。
must be一定是；mustn’t be禁止是；can be可能是；can’t be不可能是。
根据She has gone to Egypt for her holiday.可知她去了埃及，不可能站在教学楼前，故选D。
2．B解析：B【解析】【详解】句意：——我想买郭敬明的《小时代》。
——你最好不要读他的书。
他讲的故事与现实生活相去甚远。
考查非谓语动词及固定句型。
短语would like to do sth.愿意去做某事；第一空排除AC；You had better+动词原形，你最好做某事；You had better not+动词原形，你最好不要做某事。
第二空排除D。
根据题意，故选B。
3．C解析：C【解析】【详解】句意：你已经完成了大部分工作，所以你明天不必这么早就开始工作。
你可以9点来。
本题考查情态动词。
can't不可能，mustn’t禁止，needn’t不必，couldn’t可能不。
根据You have finished most of the work可知，你已经完成了大部分工作，因此明天不必这么早就开始工作，因此用needn’t，故选C。
4．A解析：A【解析】【详解】句意：既然你很累，今天就不必完成这项工作了。
A. needn’t不必；B. may not 可能不；C. mustn’t禁止；D. can’t不能。
根据上文Since you are very tired,可知，情态动词needn’t表示不需要，后面直接加动词原形。
根据题意，故选A。
5．C解析：C【解析】【详解】句意：所有乘客在乘坐飞机前必须经过安全检查。
考查情态动词辨析。
may可以，表许可或请求；can能，表能力或许可；must必须，指一定；need需要，指有必要。
根据句意语境可知，安检强调“必须，一定”，故选C。
6．B解析：B【解析】【详解】句意：——吉姆坐火车来吗？——我不确定，他可能开自己的车。
考查情态动词辨析。
A项，必须，一定，表示肯定推测；B项，也许，表示有可能；C项，需要；D项，应该。
根据回答部分I’m not sure.可知，此处并不确定吉姆是开车来还是乘坐火车来，所以此处是“可能”。
故选B。
【点睛】must意为“必须，应该”，可以表示主观上一定要做什么或者肯定推测。
例如：I must go home to look after my mum. This pair of shoes must be hers. may意为“可以，也许”，可以表示请求或者推测（无法断定）。
例如：May I come in？ It may be hers，but I’m not sure. need意为“需要”，既是情态动词也是行为动词。
例如：You needn’t finish your homework right now. You need to tell him the truth. should意为“应该”，表示责任或者义务。
例如：You should finish practising playing the piano at first.7．B解析：B【解析】【详解】句意：从2013年3月23日开始，14岁以下的人禁止单独去迪士尼乐园。
考查情态动词词义辨析。
couldn’t不能；mustn’t禁止，不允许；needn’t不必；mightn’t可能不。