人教版九年級(jí)全期末情態(tài)動(dòng)詞 備課單

1、情態(tài)動(dòng)詞Learning ObjectivesReview the use of modal verbsTeaching Key and Difficult Points情態(tài)動(dòng)詞的基本用法 情態(tài)動(dòng)詞表推測的用法 III.Teaching ProceduresStep 1 Leading in Review what students have learned last class.Step 2 Presentation and Practice情態(tài)動(dòng)詞的基本特征：有詞義，但不能單獨(dú)作謂語，必須和動(dòng)詞原形一起構(gòu)成謂語無人稱和數(shù)的變化后接動(dòng)詞原形情態(tài)動(dòng)詞的基本用法：表能力：can, cant, c

2、ould. couldnt表禁止：mustnt表建議：should, had better表不需要：neednt表請求：will, would, may, can, could, might, shall情態(tài)動(dòng)詞表推測：表肯定推測：mustcan/couldmaymight表否定推測：cant, may not初中階段常見情態(tài)動(dòng)詞（組）can(1)表示能力，意為“能，會(huì)”?？膳cbe able to 相互轉(zhuǎn)化。Can you speak English？你會(huì)講英語嗎？(2)表示請求、允許，意為“可以”。Can I use your bike to the downtown？我能用你的自行車去市區(qū)

3、嗎？2、cant(1)表示能力，意為“不能，不會(huì)”。There is something wrong with my eyes. I cant see things around me clearly. 我的眼晴有點(diǎn)毛病。我看不清周圍的東西。(2)表示否定推測，語氣強(qiáng)烈。意為“一定不，不可能”，可能性幾乎為零。The cup cant be Cindys, because she didnt come to the party.這個(gè)杯子不可能是辛迪的。因?yàn)樗龥]來參加聚會(huì)。(3)表示拒絕對方的請求或者不同意、不允許，意為“不可以”。You cant take the book out of th

4、e library without permission. 未經(jīng)允許，你不能把書帶出圖書館。3、could(1)can的過去式，意為“能，會(huì)”，表示過去的能力。My sister could walk when she was 10 months old.我妹妹10個(gè)月的時(shí)候就會(huì)走路了。(2)在疑問句中表示委婉的請求。Could you just tell him to call me back？你能告訴他給我回個(gè)電話嗎？(3)表推測，意為“有可能，也許”(20%80%的可能性)，語氣緩和，較委婉。The train to Beijing could be late.去北京的火車可能會(huì)晚點(diǎn)。(

5、4)couldnt為could的否定式，意為“不能，不會(huì)”。Words couldnt express her feelings at that moment.言語不能表達(dá)她那時(shí)的感受。4、must(1)表示主觀看法，意為“必須，一定”。We must be patient to others.我們必須對他人有耐心。(2)表示非常有把握的肯定推測(100%的可能性)，意為“一定，肯定”。Mary is not here. She must have already left.瑪麗不在這兒。她肯定已經(jīng)離開了。(3)mustnt為must的否定式，意為“一定不要，禁止”。You mustnt pl

6、ay in the street.你不能在街道上玩耍。5、may(1)表示請求、許可，意為“可以”。May I ask you a question？我可以問你一個(gè)問題嗎？(2)意為“有可能，也許”，用于肯定句，表示把握不大的推測。Many students become busy taking notes and they may fail to follow the teacher.許多學(xué)生開始忙著做筆記，他們可能會(huì)跟不上老師。(3)用于祈使句，表示祝福和祝愿，用法和wish相似。May your dream come true.祝你夢想成真。6、might(1)may的過去式。She w

7、orried that I might be angry.她擔(dān)心我會(huì)生氣。(2)表示請求、許可，語氣比may更委婉。Might I have a talk with you？我可以和你談?wù)剢幔?3)表推測，意為“有可能，也許”，可能性小于may，語氣緩和，較委婉。She might have gone to the library. She likes reading in the afternoon. 她或許去圖書館了。她下午喜歡看書。7、need(1)表示需要，主要用于否定句和疑問句中。Need I leave now？我需要現(xiàn)在離開嗎？(2)neednt意為“不需要，沒必要”。You n

8、eednt worry about Tom. He isnt a child any more.你不必?fù)?dān)心湯姆。他不再是一個(gè)小孩了。should/ought to(1)意為“應(yīng)該”，表示要求和命令，也可以表示勸告或建議。We should work harder to protect our world.我們應(yīng)該更加努力地保護(hù)我們的世界。(2)表示征詢意見，常用于疑問句中。How much rent(租金)should I pay for this place？我租這個(gè)地方應(yīng)該付多少租金？shouldnt和shall(1)shouldnt意為“不應(yīng)該”。You shouldnt start e

9、ating first if there are old people at the table.如果餐桌上有老人，你不應(yīng)該先開始吃飯。(2)shall表示請求或征求對方意見，多用于一、三人稱，構(gòu)成疑問句。Shall we get each of them a card and a gift to say thank you？我們要給他們每人一張卡片和一份禮物來表示感謝嗎？(3)shall表示決心、警告、命令，多用于第二人稱。You shall sit on your seats until all the exam papers are collected.你們必須坐在你們的座位上，等所有試

10、卷收好才能離開。10、will, would,had better和have to(1)will表示詢問、請求，用于疑問句中，常用于第二人稱。Will you come with us? 你能和我們一起去嗎？(2)would表示自愿做或主動(dòng)提出做什么，表意志、愿望或決心等。Jane said she would not go with Tom, for she didnt have time.簡說她不愿意和湯姆一起去，因?yàn)樗龥]時(shí)間。(3)had better意為“最好”。多用于第二人稱，否定形式為had better not。It is raining heavily. You had bet

11、ter stay at home.外面雨下得很大。你最好待在家里。(4)have to意為“不得不”，多表示客觀必要。I have to prepare for the exam. 我不得不為考試做準(zhǔn)備。拓展及注意(1)由must引出的一般疑問句，肯定回答常用“Yes, 主語must/have /has to.”；否定回答常用“No, 主語neednt/dont/doesnt have to.”，不能用mustnt回答。(2)表肯定推測的情態(tài)動(dòng)詞：mustcan/couldmaymight(按語氣強(qiáng)弱)。(3)表示否定推測的情態(tài)動(dòng)詞有：cantmay not(按語氣強(qiáng)弱)。(4)對由could

12、引出的一般疑問句，回答用can而不用could。Step 3 Classroom Test1. Life _ be easy or difficult; sometimes it depends on how you look at it.2.Could I ride an electric bicycle to school, Mr. Wang?No, you _. Students under the age of 16 arent allowed to ride electric bicycles.3._I take a seat here?No, you cant. Theyre on

13、ly for the old and children.4. Look! People outside are wearing thick coats.The weather _ be very cold.5. _ we leave the library before 5 oclock?No, you neednt. You can stay here until 5：30.6. China is going to use AI to protect the Great Wall.Great! AI is so helpful that people _ use it in their daily life now.7. Parents _ put the things like knives and medicine away in the house to keep children safe.8. You _ take photos here! Look at the si