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1、2016-2017学年高中英语Unit1FestivalsaroundtheworldPeriodThreeGrammar&Writing课时作业新人教版必修3Period ThreeGrammar & WritingPart OneGrammar用适当的情态动词填空1He shall have the book when I finish reading.2Even an experienced teacher can make mistakes.3Lets speed up.They might be waiting for us now.4You cant be hungry alrea
2、dyyou had lunch only two hours ago!5Would you please post the letter for me?6Must I finish the work today?No，you neednt.7Drivers mustnt drive after drinking.8She promised to come by 12.She should be here at any time.情态动词()1can和could的用法(1)表示能力，常译为“能，会”，could主要指过去时间。Little Maggie can dress herself now
3、.I could drive a car before I left school.(2)表示猜测“可能”，一般用于疑问句和否定句。Can the news be true?It cant be true.Someone is knocking at the door.Who could it be?(3)表示请求、允许(表请求时，口语中常用could代替can使语气更委婉，回答时用can)。Could I come to see you tomorrow?Yes，you can.(否定答语可用No，Im afraid not.)(4)表示惊异、怀疑、不相信的态度(主要用在否定句和疑问句中)。
4、How can that be true？I cant believe my eyes and ears.How could you be so careless?(5)can可以表示理论上的可能性，指常有的行为或情形，意为“有时会”。It can be very hot here in summer.(6)“can (could)have过去分词”的疑问或否定形式表示对过去发生的事情的推测。could have done还可表示过去本来可以做的事而没做。He cannot have been to that town.Can they have left so soon?2may和might
5、的用法(1)表示许可、请求、允许时，might比may的语气更委婉一些，否定回答时要用mustnt，表示“不可以”、“禁止”、“阻止”之意。You may drive the car.May I use your telephone?Yes，you may./No，you mustnt.(2)may常用于祈使句中表示祝愿。May you succeed!(3)表示推测、可能(疑问句不能用于此意)。He may be very busy now.(4)“may (might)have过去分词”表示对过去发生的行为的推测。He may not have finished the work.3wil
6、l和would的用法(1)表示请求、建议等，would比will委婉客气。Would you pass me the book?(2)表示意志、愿望和决心。I will never do that again.They asked if we would do that again.(3)would可表示过去反复发生的动作或某种倾向。would表过去习惯时比used to正式，并没有“现已无此习惯”的含义。Mum would tell us stories before we went to bed.4shall和should的用法(1)shall用于主语为第一、第三人称疑问句中，表示说话人征
7、求对方的意见或向对方请示。Shall we begin our lesson?When shall he be able to leave the hospital?(2)shall用于主语为第二、三人称的陈述句中，表示说话人给对方命令、警告、允诺、威胁等。You shall fail if you dont work harder.(警告)He shall be punished.(威胁)(3)should表示劝告、建议、命令，其同义词是ought to。You should go to class right away.You should be more careful next tim
8、e.(4)should表示推测、可能。这种推测往往有一定的根据，含有“按道理应当”之意。The roads should be less crowded today.(5)should表示说话人的惊奇、愤怒、失望等特殊情感。Its surprising that Mary should love such a person as Jack.Dont ask me.How should I know?(6)“shouldhave过去分词”结构一般表示义务，表示本应该做到而实际上没有做到，并包含一种埋怨、责备的口气。She should have finished it.I should have
9、 helped her，but I never could.You should have started earlier.5must的用法(1)表示必须、必要，其否定式mustnt表示禁止。You must come on time.You mustnt lend the new book to others.回答must引出的问句时，如果是否定的回答，不能用mustnt，而要用neednt或dont have to。Must we hand in our exercise books today?Yes，you must.(No，you dont have to.)(2)表示有把握的肯定推
10、测，只能用在肯定句中，意思是“一定，准是”。She must be tired after such a long walk.(3)表示“偏要，偏偏”。Must you play the piano at this time of night?(4)“musthave过去分词”结构常用在肯定句中，表示对过去发生的行为的推测。He must have been to Shanghai.选词填空1Im going to Europe on vacation together with John if I can find the money.2Days later，my brother calle
11、d to say he was all right, but wouldnt say where he was.3I was really anxious about you，you shouldnt have left home without a word.4Must you interrupt now? Cant you see Im on the phone?Sorry Sir，but its urgent.5They should have arrived at lunchtime but their flight was delayed.6Why are your eyes so
12、red？You cant have slept well last night.Yeah，I stayed up late writing a report.7Write to me when you get home.I will.8I left my handbag on the train，but luckily someone gave it to a railway official.How unbelievable to get it back！I mean，someone might have stolen it.完成句子1She used to play a trick on(
13、过去常开别人的玩笑) others.2It may be a custom(可能是种习俗)3She cant turn up(不能来了)，for her boss asked her to finish a lot of work today.4Oil will float(漂浮) on water.5We mustnt laugh at(一定不要嘲笑) the old people.6You should forgive(应该原谅) her，for it is not her fault.7The guide suggested that we should set off/out(出发)
14、tonight.8Can you hold your breath(你能屏住呼吸) for 6 minutes?9She must have cleaned(一定擦过了) the table，for the table is very clean.10You should have arrived(本应到达) earlier.Part TwoWriting写作目标Writing a story常用句式1One day，on the way to.2Last Sunday，my mother and I were doing.when we saw/heard.3Long long ago/On
15、ce upon a time，there was/were.4About.oclock one evening in.，my.was doing.5Without delay/hesitation，I/we dialed 120/119/122.It wasnt long before an ambulance/.arrived.6We tried our best to help.，but.7We make every effort to help.After a while，many people came to help us.At last，.was saved/we succeeded.8Although we were very tired，we felt very happy.典例展示假设你是红星中学高三(1)班的学生李华，校报英文版正在开展“续写雷锋日记”活动。请根据以下四幅图的先后顺序
