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1、第七讲：动词,动词的分类,1.Be动词（am , is ,are）2.助动词:本身没有词义，不可单独使用.3.情态动词4.实意动词,be动词的用法,1. 与名词，数词，形容词，介词连用1）He is my teacher.2) She is ten.3)They are tired.4)The cat is under the desk.2. Be动词在时态中的运用1）在一般现在时中 I am a doctor.2)在现在进行时中 We are talking.,练习,1.I _ a girl.2.She_ a beautiful girl.3.he_ from England.4.They_
2、 my parents.5.You _the best student in our class.6.we_ students.7.How _you,助动词的几种形式1）do / dont2) does / doesnt3) did / didnt4) will / wont助动词的几种用法1.对句子进行疑问和否定1）Do you get up early every day?2) I didnt have lunch yesterday.3) Will you be back soon?2.在反义疑问句中1)He works in a school , doesnt he ?2)She ha
3、s never been there , has she?,用do,does,did填空1._your sister like English?2._you ride a bike after school?3.He_not speak Chinese.He speaks English.4._they do their homework last night?5._you go shopping with your mother yesterday?6.My father and mother_not read newspaper on Sundays.,情态动词,本身有一定的词义，与普通动
4、词一起使用，给谓语动词增添情态色彩，表示说话人对有关行为或事物的态度和看法。1）情态动词后面跟动词原形2）只有时态变化，没有人称的变化原 形 过去式 词 义 can could 能 may might 可以（或许） must must 必须（不得不）will would 愿意 shall should 应该 need needed 需要,1. can / could 1）在表示有能力做某事时，could 是can 的过去式。I can swim.I could swim at the age of five. 2）在表示请求允许的时候两者可互换，could比can语气更委婉。Can I hel
5、p you?Could you open the window?,2.must 1）表示义务，命令或必须 You must finish it before 5 oclock. Must I hand it in now? 2）否定句用mustnt,否定回答用neednt You mustnt play in the street. -Must I clean the room now? -No, you neednt.,3.may 1）表示请求、许可、可以 May I ask you some questions? May we start now? 4. Should1）表“应该” Who
6、 should I meet this afternoon? You should pack your bag quickly.,二. 用适当的情态动词填空。1. Must I borrow the book with my ID card? No, you _.2. _ I use your car? Yes, you _.3. _ I go home now? No, you _ stay here.4.My mother is ill. I _ stay at home and look after her.5._ you like some tea?6. You _ take more
7、 exercise.7. _ you tell me how to get to the Qingyun Park?8. The clock _ tell us the time.9. _ you like to go fishing with me?10. _ we play football this afternoon?,实意动词,1.实意动词是指具有行为意思的动词2.实意动词的四中形式： 原形 第三人称单数 过去式 现在分词,注意：掌握四中形式的变化规律1）I like the book.2) He works in the office.3) I caught a cold last
8、 week.4) we are dancing now.,英语动词的基本形式及变化规则,1.单三形式变化规则 2. 动词-ing形式的变化规则 3. 动词过去式的构成变化规则,1.单三形式变化规则,1）一般动词在词尾加- s, help helps ，swim swims 2）以字母s, x, ch , sh 结尾的动词加- es, guess guesses，teach teaches3）以字母s, x, ch , sh 结尾的动词加- es, guess guesses，teach teaches4）以辅音字母加y结尾的动词， 先变y为 i，再加-es fly flies carry ca
9、rries 特殊：be is have has do does,写出下列动词的第三人称单数形式ask_ catch_ write_read_ go_ clean_put_ study_ come_wash_ take_make_,2.动词- ing形式的构成,（1） 一般在动词末尾加-ing. go going，ask asking（2）以不发音字母e结尾的动词,先去掉e, 再加-ing. write writing，close closing， take taking3）以闭音节结尾的动词，如果末尾只 有一个辅音字母，应先双写这一字母， 再加-ing. get getting，sit sit
10、ting， put putting，run running， begin beginning,写出下列动词的现在分词形式swim_ fly_ watch_see_ write_ sing_say_ run_ come_jump_ take_ talk_,3.规则动词过去式的构成,1）一般在动词原形末尾加-ed. 结尾是e 的动词直接加-d. look looked，play played， live lived，hope hoped（2）末尾只有一个辅音字母的重读闭音节词， 先双写这个辅音字母，再加-ed. stop stopped，plan planned， trip tripped（3）结尾是“辅音字母+y”的动词， 先变“y”为“i”再加-ed. study studied，carry carried,（5)不规则动词过去式 常见的不规则动词的过去式有: am/is was, are were ,go went, have had, do did, get got, come came, say said, see saw put put, eat ate, take took作业：1.记动词三单变化规则，过去式变化规则，现在分词变化规则。2.记各情态动词表示的意思。,
