1、.用适当的情态动词填空1昨天他不得不照顾他的姐姐，因为父母不在家。He look after his sister yesterday because his parents werent at home.答案：had to2我刚才看见他出去了。他现在不可能在家里。I saw him go out just now. He be at home now.答案：cant3你必须作出决定是离职还是留下？(客观上需要做这件事)You make a choice. Are you going to leave the job or stay?答案：have to4如果你想用电话的话，你可以用。You
2、use the phone if you want to.答案：can5他现在非常生气，你不必把此事告诉他。He is very angry how and you tell him about it.答案：dont have to6你一定不要告诉他，他没有通过期末考试。You tell him that he didnt pass the final exam.答案：mustnt7你应当按他说的去做，因为他总是为你着想。 You do as he says because he is always thinking of you.答案：ought to8你不应该浪费时间整天玩电子游戏。You
3、 waste any time playing video games all day.答案：ought not to.单项填空1There was a lot of fun at yesterdays party. You _， but why didnt you?Ashould come Bmust have comeCmay have come Dought to have come解析：考查情态动词。后句句意：你本应该来的，但是为什么没来呢？ ought to have done 过去本应该做某事(却未做)，故选D。答案：D2I havent found my money. Where
4、 _ it be?Amust BcanCmay Dhas to解析：句意：我找不到钱。可能放哪儿了呢？ can 用在疑问句或否定句中，表示“可能”。 了答案：B3The fire spread through the hotel very quickly, so I _ leave there.Ahad to BwouldCcould Dmight解析：句意：大火很快蔓延到了整个宾馆，所以我不得不离开那里。 have to “不得不”；would “愿意”；could“能够”；might“有可能”。答案：A4 Sorry to trouble you, but _ I ask a person
5、al question? No problem.Amust BoughtCcould Dshould解析：问句句意：很抱歉打扰你，我可以问一个私人问题吗？ could 在此表示委婉客气的说法，不是 can 的过去式。答案：C5You dont have to know the name of the author. You _ find the book by the title.Acan BneedCmust Dwould解析：考查情态动词。句意：你不必知道作者的名字，你能通过题目找到这本书。 can “可以，能够”，故选A。答案：A6We hope that as many people
6、as possible _ join us for the picnic tomorrow.Aneed BmustCshould Dcan解析：根据句意确定答案，此处的can也是表示可能性。答案：D7 Is it necessary to look up every new word when I come across it in reading? No. You _， because you are likely to guess the meaning from the context.Acant BmustntCdont have to Dought not to解析：句意：“当我阅读
7、时有必要一遇到生词就查字典吗？”“不，没必要，因为你有可能从文章内容猜测出意思来”。 dont have to neednt “没必要”；cant “不可能”；mustnt “一定不要，绝对不行”，表示严厉禁止；ought not to“不应该”。答案：C8 What do you think we can do for our aged parents? You _ do anything except that you visit them as often as possible.Adont have to Boughtnt toCmustnt Dshouldnt解析：句意：“你认为我们应该为年迈的父母做些什么？”“除了尽可能经常地去看他们外，你不必要做什么。” dont have to “不必”；oughtnt to“不应该”；mustnt “绝对不”；shouldnt “不应该”。答案：A
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