第三课时第三课时(Grammar Focus4c)单元同步语法精讲精练单元同步语法精讲精练should为情态动词，表示为情态动词，表示“应该；应当应该；应当”，常用来征求别人的意见和建议。其后，常用来征求别人的意见和建议。其后接动词原形，没有人称和数的变化。接动词原形，没有人称和数的变化。具体用法具体用法表示劝告或者建议。表示劝告或者建议。eg：You should stop smoking.你应该戒烟。你应该戒烟。表示命令或者要求。表示命令或者要求。eg：You shouldnt talk in class.你不许在课堂上讲话。你不许在课堂上讲话。表示义务、责任。表示义务、责任。eg：We should study hard.我们应该努力学习。我们应该努力学习。表示预测或者可能。表示预测或者可能。eg：They should come here by ten.他们应该会在十点前到这儿。他们应该会在十点前到这儿。表示说话人的情感，如失望、愤怒或惊讶。表示说话人的情感，如失望、愤怒或惊讶。eg：How should I know？我怎么会知道？我怎么会知道？句型结构句型结构肯定句：主语肯定句：主语should动词原形其他动词原形其他否定句：主语否定句：主语shouldnt动词原形其他动词原形其他一般疑问句：一般疑问句：Should主语动词原形其他？主语动词原形其他？肯定答语：肯定答语：Yes，主语，主语should.否定答语：否定答语：No，主语，主语shouldnt.特殊疑问句：特殊疑问词特殊疑问句：特殊疑问词should引导的一般疑问句？引导的一般疑问句？构成构成用法：反身代词表示用法：反身代词表示“自己；本人；本身自己；本人；本身”，在句中可作宾语、表语或同位语，在句中可作宾语、表语或同位语，也可用在固定短语中。也可用在固定短语中。eg：They taught themselves English.他们自学英语。他们自学英语。(作宾语作宾语)The poor boy was myself那个可怜的男孩就是我自己。那个可怜的男孩就是我自己。(作表语作表语)Mr.Li himself is an English teacher.李先生自己是一名英语老师。李先生自己是一名英语老师。(作同位语作同位语)by oneself独自；单独；独立地独自；单独；独立地enjoy oneself玩得高兴玩得高兴help oneself(to)随便吃随便吃/喝些喝些teach oneself/learn.by oneself自学自学keep.to oneself保守秘密保守秘密一、根据句意，用括号中所一、根据句意，用括号中所给单词给单词的适当形式填空。的适当形式填空。1Maybe we should _(wait)a little longer.Lily is on her way.2Dont worry！We can look after _(we)well.3Mr.Yang cleaned the classroom _(he)yesterday.4Dad，can you help me？I cant make the model plane by _(I).Sure.5How did you hurt _(you)，Helen?I fell down when running.6The story _(it)was very good，but you didnt tell it well.7My grandma taught _(she)English.How cool!8They enjoyed _(they)at the new park last Saturday.waitourselveshimselfmyselfyourselfitselfherselfthemselves二、按要求完成下列句子。每空一词。二、按要求完成下列句子。每空一词。9Should I get off at this stop？(作否定回答作否定回答)_，_10Mary should exercise every day to keep healthy.(改为一般疑问句改为一般疑问句)_ Mary _ every day to keep healthy?11You should eat some candy.(改改为为否定句否定句)You _ any candy.Noyou shouldntShouldexerciseshouldnt eat 12We should brush our teeth three times a day.(改改为为一般疑一般疑问问句句)_ we _ our teeth three times a day?13Should I go to a doctor if I dont feel well？(作肯定回答作肯定回答)_14David should ask his parents for help(对对画画线线部分提部分提问问)_ David _？ShouldbrushYes，you shouldWhat shoulddo一、根据句意，用括号中所给单词的适当形式填空。一、根据句意，用括号中所给单词的适当形式填空。1Mom，I have a _(stomach)now.And I dont want to eat anything.2My sister _(fall)down and hurt her left leg yesterday afternoon.3Sorry，Daming and his brother cant talk to you.They have sore _(throat).4Lisa could dress _(she)when she was five years old.5Tom hurt himself when _(play)basketball with his classmates last Sunday.stomachachefellplayingthroatsherself二、完形填空。二、完形填空。Last Friday，I agreed to meet some friends at 6：00 pm.in a coffee shop.The weather was sunny，so I made a _6_ to walk there.I arrived ten minutes early.I ordered a cup of coffee and sat _7_ people.There were some boys playing football on the street，and a small boy was running after the ball.Suddenly，there came a car.It was going very _8_When the driver saw the boy in his way，he braked(刹车刹车)hard.But it was too late.The car _9_ the boy.The small boy was _10_ on the street without moving._11_ everyones surprise，the car drove away quickly.People ran to the boy.There was a cut on the boys head and he lost much _12_I telephoned the police _13_Soon an ambulance(救护车救护车)arrived and took the boy to the hospital.At 6：30 pm.，the police arrived and started questioning people.They asked me to go to the police station because I saw _14_ happened.I gave them all the information I knew because I really wanted them to catch the driver.I didnt leave the police station until 8：00 pm.After that，I went home _15_ I didnt feel like talking to anyone.The next day，the boys parents called me to say thanks.They also told me their boy was fine and the driver was in the police station now.()6.A.differenceBdecision Cstep Dmistake()7.A.asking Bfinding Cwatching Dinviting()8.A.fastBwellCslowlyDhard()9.A.touched Bpoured Cmet Dhit()10.A.lying Bwalking Cplaying Dresting()11.A.For BTo CAt DWith()12.A.mind Bmoney Ctime Dblood()13.A.just now Bright away Cbefore long Don time()14.A.how Bwhere Cwhen Dwhat()15.A.until Bif Cbecause DsoBCADABDBDC