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    外研版英语八年级上Module12-Unit3 Language in use课件

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    外研版英语八年级上Module12-Unit3 Language in use课件

    1、Module 12,Help,Language in use,一、祈使句,祈使句表达说话人对对方的叮嘱、劝告、希望、禁止、建议、请求或命令等。祈使句一般以动词原形开头,无时态和数的变化。常见的句型如下:,1. 动词原形构成的祈使句此类祈使句暗含的主语是you,但通常省略。否定句往往由 do not(dont)或 never 开头。祈使句的句首或句末有时加 please,还可以加上称呼语,用逗号与句子主体隔开。例如:,Have a nice day! 祝你度过美好的一天! Dont waste your time! 别浪费时间了! Never be late again! 再也不要迟到了! Co

    2、me this way, please. 请走这边。,Please be quiet, boys! 男孩们,请安静! Make sure hes warm. 确保他不受凉。 Dont use the lift. 不要使用电梯。,2. lets 构成的祈使句这类祈使句往往用于提出建议。例如:Lets spend this weekend in the countryside. 这周咱们到乡下度周末吧。Lets take a taxi, shall we? 我们坐出租车好吗?,3. 无动词祈使句在请求、命令和口号中,常用无动词祈使句,它实际上是省略了动词,从而使语句更简洁有力。例如:Just a

    3、minute, please! 请稍等!This way, please! 请这边走!,二、情态动词 must/can/could 表示推测,我们学习过情态动词 can 和 could 表示“能够,可以”等意义的用法。can 和 could 还可以表示对现在或将来的推测,意为“会, 可能”,但 can 表示推测时,往往用于否定句和疑问句。用于疑问句时,can 比 could 表示的“可能性”要大;用于否定句时,cannot(cant)表示“不可能”。例如:You cant be serious! 你不是认真的吧!,could 则可用于肯定句、否定句和疑问句。在以下例句中,can 和 could

    4、 均表示可能:He could be in pain. 他可能很疼。That could be harmful! 那可能有害!Can/Could this be true? 这有可能是真的吗 ?,情态动词 must 也可以表示猜测,意思为“一定,准是”,通常只用于肯定句。如课文中的例子:Betty, you must know! 贝蒂,你肯定知道!,请仔细对比下列一组句子:Who sent the present? Can it be your brother? 是谁送来的礼物啊?会是你哥哥吗?(询问可能性),It must be your brother. I saw him in your

    5、 room just now. 肯定是你哥哥,我刚才看见他在你的房间里。(语气强烈,表示非常肯定)It cant be my brother. He is still in France. 不可能是我哥哥,他还在法国呢。(表示不可能),Complete the sentences with could, must or mustnt. 1 It is dangerous. You _ keep out! 2 These stairs are not safe. You _ use them.,must,mustnt,3 The rocks are falling down. You _ get

    6、 hit. 4 The river is too deep. You _ swim in it. 5 Betty _ know what to do because she did some basic medical training.,could,mustnt,must,Underline the correct owrds to complete the first aid instructions.,1 Get / Do not get medical help immediately. 2 Ask / Do not ask the where the pain is. 3 Lift

    7、/ Do not lift then because you may drop them. 4 Keep / Do not keep them warm.,Complete the poster about earthquakes with the correct form of the words and expressions in the box.,When there is an earthquake. 1 _ from the windows. 2 _ a table. 3 _ the lift. 4 _ the building quickly when the ground st

    8、ops shaking. 5 _ calm.,Stay away,Hide under,Do not use,Leave,Keep,Complete the conversation with the words and expressions in the box.,Tony: Daming is training hard for the big match. Lingling: Yes, the team has a good (1)_ this year. Tony: Oh no, Damings (2)_. Hes down! Lingling: It looks like hes

    9、(3)_.,chance,in trouble,in pain,Tony: Daming, what happened? Daming: Its my leg. Lingling: (4) _ him with my coat. Tony: But dont move him. Lets wait for someone with (5) _ training. Lingling: OK.,Cover,medical,注: word 文档 点击此处链接,Quiz,1. Meng Fei had his arm broken while recording If You Are the One

    10、in Beijing. Really? Then perhaps he _ host TV programs for some time. (2012连云港) A. neednt B. mustnt C. shouldnt D. cant,2. The lady in this photo _ be over fifty! She looks so young! (2012无锡) A. mustnt B. must C. cant D. can 3. Look! A book is on the floor. Whose is it? It _ be Ricks. It has his nam

    11、e on it. (2012济南) A. mustnt B. cant C. must D. need,4. This toy Mickey Mouse _ be Amys. shes the only kid at the picnic. (2012济宁) A. must B. can C. need D. cant 5. Excuse me, whose Japanese book is this? It _ be Toms. In our class, only he is studying Japanese. (2012成都) A. must B. cant C. would,6. I

    12、s that girl Susan? (2013福州) It _ be her. She left for Beijing yesterday.A. neednt B. cant C. mustnt 7. Someone is knocking at the door. Is it Ann? (2013广东) It _ be her. She is giving a performance at the theatre now.A. may B. must C. cant D. mustnt,Homework,Review the grammar focus we have learned in this module.,Thank you!,


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