一、选择题1．— May I have some wine?— No, you . You have to drive home later.A．shouldn't B．needn't C．mustn't D．may not 2．—Must I finish the work today, Mum?—No, you ________.You can finish it tomorrow.A．mustn't B．can't C．shouldn't D．needn't3．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．A: Is Jim coming by train?B: I’m not sure. He _______ drive his car.A．must B．may C．need D．should 6．—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 not7．（江苏省无锡市锡北片2017届九年级下学期期中考试）—Where are you going for your summer holiday?—We go to Yun Nan, but we haven’t decided yet.A．should B．will C．may D．must8．— Mom, I got a big box from express(快递). What is it?—I’m not sure. It ________be a present from you r grandmother.A．should B．might C．must D．will 9．—Doesn’t Frank like staying at home and looking after his little sister?—_______, but he ________ because both of his parents work.A．Yes; has to B．No; has toC．Yes; doesn’t have to D．No; doesn’t have to10．—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 not11．It is 11:00 p.m now. Peter hasn't come back yet. His mother ______ be very mad at him. A．may B．can C．must D．need12．Even the top student can't work out this problem, so it________ be too difficult. A．must B．may C．can D．need 13．—Could you please hang out with me this afternoon?—______. I have to make a plan for Clean-Up Day.A．Sorry, I couldn’t B．S orry, I can’tC．Sure, I can D．Sure, I could14．—Must I go out to have dinner with you, Mum?—No, you , my dear. You’re free to make your own decision.A．shouldn’t B．mustn’t C．needn’t D．can’t15．The flowers ________ every day, or they will die.A．must water B．can be wateredC．should water D．must be watered16．—Mum, I’ve signed for a big box by Future Express (快递). What’s in it?—I’m not sure. It ________be a present from your brother.A．need B．must C．may D．will17．—Is Wilson on duty in class today?—It________be him. It's his turn tomorrow.A．must B．can't C．should D．needn't18．— 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’t19．—We've prepared all kinds of foods for the picnic.—Do you mean I___ bring anything?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 should________ the teacher________being late for school.A．apology to, about B．apologize to, forC．apologies to, for D．apologize to, on【参考答案】***试卷处理标记，请不要删除一、选择题1．C解析：C【解析】【分析】【详解】句意：——我可以喝一些酒吗？——不，你不可以。
你以后必须开车回家。
shouldn't不应该，needn’t不必，mustn’t禁止，may not可能不。
根据You have to drive home later.可知，你必须开车回家，因此表示你不可以喝酒，故用mustn’t。
故选C。
2．D解析：D【解析】【详解】句意：-我必须今天做完这个工作吗，妈妈？-不，你不必。
你可以明天完成。
mustn’t禁止，不要；can’t不能，不会；shouldn’t不应该；needn’t不必，没有必要。
Must 的一般疑问句，肯定回答用must，否定回答应用needn’t。
故选D。
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nee dn’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．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.6．B解析：B【解析】【详解】句意：——我能带些牛奶和饼干到阅览室吗？——不行，我们学校规定学生不许在那里食用食物。
考查情态动词的用法。
can’t不能；mustn’t禁止，不许；needn’t不必；may not可能不。
由“a rule”可知，“学校禁止或不许学生在阅览室食用食物”。