1、.用适当的情态动词填空1You shall have a new computer if you work hard enough.2How can you possibly miss the news? It has been on TV all day long.3The boy may/might know the truth, but I am not quite sure.4You neednt/dont_have_to finish your homework now there is still two days left.5It seems so unfair that thi
2、s should happen to me.6He would come to help us when he was free.7If you must go, at least wait until the storm is over.8No matter when you come, I will tell you a funny story.单项填空1 Who _ it be that is knocking at the door? It _ be father, but Im not sure.Acan; must Bcan; mayCmust; can Dmay; must解析：
3、选B。句意：“敲门的人可能是谁呢？”“可能是父亲，但我也不确定。”第一空为肯定推测可排除C项；第二空根据说话者的不确定性可知不能用must，故排除A、D两项。2My mother _ always wave goodbye to me while I was leaving for school.Ashould BmustCcould Dwould解析：选D。句意：我上学时妈妈总是和我挥手告别。根据I was leaving for school可知说的是过去的事。would表示“过去常常”，其他选项没有此用法。3You _ be sitting in this waiting room, s
4、ir. You see, it is for women and children only.Aoughtnt to Bdare notCneed not Dwill not解析：选A。句意：先生，你不应该坐在这个等待室里，你看，这是为妇女和儿童的。oughtnt to“不应该”；dare not“不敢”；need not“没有必要”；will not“将不会”。4The fire spread through the hotel very quickly, but everyone _ get out.Ahad to BwouldCwas able to Dcould解析：选C。句意：火在旅
5、馆蔓延得很快，但是每个人都能成功地出来。be able to用于一般过去时，往往表达“成功地做成了某事”。5You _ to the meeting this afternoon if you have something important to do.A neednt to come Bdont need comeCdont need coming Dneednt come解析：选D。句意：如果你有什么重要的事情要做的话，今晚的会议你就不必来了。need既可以用作实义动词，又可以用作情态动词。表示“没有必要做某事”用dont need to do sth.或neednt do sth.。6
6、There _ be any difficulty about passing the road test since you have practised a lot in the driving school.Amustnt BshantCshouldnt Dneednt解析：选C。句意：既然你已经在驾校里做过很多练习了，通过路考应该不会有什么困难。此处should表示合乎情理的推测，意为“照说应该”。7 Is Pro. Smith giving the speech today? It _ be him. He is abroad right now.Acant BneedntCwont
7、 Dmustnt解析：选A。句意：“史密斯教授今天做报告吗？”“不可能是他。他现在在国外。”cant“不可能”；neednt“不必”；wont“将不会”；mustnt“禁止”。8According to the management rules of our hotel, all the bills _ be paid in cash.Awould BmayCshall Dcould解析：选C。句意：根据我们宾馆的管理规定，所有的账单必须用现金来付。shall可以表示“允诺；警告；命令”等意义，其他选项无此用法。9_ you be so careless with your homework?
8、 You see, there are dozens of spelling errors.AWill BWouldCMust DMight解析：选C。句意：你非要做作业这么不认真吗？你看，有这么多的拼写错误。must在这里意为“非要；偏要”。10The kid is crying, for he _ jump over the ditch on his own.Adares not to Bdare not toCdoesnt dare to Ddares not解析：选C。句意：孩子正在哭，因为他不敢自己跳过这个沟。dare既可用作实义动词，又可用作情态动词。用作情态动词时，后跟动词原形，故可排除B项；用作实义动词时，否定句要借助于助动词，不能在其后直接加not。故C项为正确答案。