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(3)would rather后跟从句时用虚拟语气，表示愿望，意为“宁愿；但愿”。 We would rather our daughter stayed at home with us，but it is her choice，and she is not a child any longer.(2017·陕西高考) (4)在“It is (about/high) time＋that从句”中，谓语动词常用过去式或“should＋动词原形”表示虚拟语气。 It is high time that people learnt/should learn English. (5)在as if从句中，看语境是否与事实相反而选择是否使用虚拟语气。 It looks as if it’s going to rain. She talked about it again and again as if she would never end. (6)if only 引导的感叹句中，用虚拟语气表示愿望。 Look at the trouble we’re in. If only we had taken our teacher’s advice! [学以致用] Ⅰ.在下列各句中填入适当的情态动词 1．(2017·新课标全国卷Ⅱ)Since nobody gave him any help，he________have done the research on his own. 2．(2017·四川高考)—Why are your eyes so red？You________have slept well last night. —Yeah，I stayed up late writing a report. 3．(2017·陕西高考)My mom suggests that we________eat out for a change this weekend. 4．(2017·湖南高考)He________sleep，although he tried to，when he got on such a hunt for an idea until he had caught it. 5．(2017·安徽高考)It________be the vocabulary that caused you the problem in the exercise because you know a lot of words. 6．(2017·重庆高考)—What are you doing this Saturday? —I’m not sure，but I________go to the Rolling Stones concert. 7．(2017·江西高考)When I was a child，I________watch TV whenever I wanted to. 8．(2017·北京高考)—You needn’t take an umbrella.It isn’t going to rain. —Well，I don’t know.It________do. 9．(2017·辽宁高考)Harry is feeling uncomfortable.He________too much at the party last night. 10．(2017·全国卷Ⅱ)I’m going to Europe on vacation together with John if I________find the money. 11．(2017·辽宁高考)One of our rules is that every student________wear school uniform while at school. 12．(2017·重庆高考)—________you interrupt now？Can’t you see I’m on the phone? —Sorry Sir，but it’s urgent. 13．(2017·江苏高考)Days later，my brother called to say he was all right，but________(not) say where he was. 14．(2017·湖南高考)—I’ve prepared all kinds of food for the picnice. —Do you mean we________bring anything with us? 15．(2017·四川高考)I still remember my happy childhood when my mother________ take me to Disneyland on weekends. 16．(2017·江苏高考)It was sad to me that they，so poor themselves，________bring me food. 17．(2017·江西高考)Life is unpredictable；even the poorest________become the riches. 18．(2017·重庆高考)I’ve ordered some pizza，so we________worry about cooking when we get home tired. 19．(2017·北京高考)________ I have a word with you？It won’t take long. 20．(2017·陕西高考)My book，The House of Hades，is missing.Who________have taken it? 答案 1.must 2.can’t 3.should 4.couldn’t 5．couldn’t 6.might 7.could 8.might 9.must have drunk 10.can 11.shall 12.Must 13.wouldn’t 14．needn’t 15.would 16.should 17.might 18．needn’t 19.Can 20.could | 
