动词不定式动名的.ppt

,Language,在英语句子中，有些动词后面的动词要用to连接，to前面的动词要根据句子的时间状语用不同的时态，to后面的动词用原形。不定式的肯定式为to do，否定式为not to do。,动词不定式,常用的不定式结构有：want to do/arrange to do/decide to do/agree to do/hope to do/plan to do/refuse to do/forget to do/remember to do/ask sb.(not)to do/invite sb.to do/tell sb.(not)to do等。,Exercise,1 Will you lend him a magazine _?A.to be read B.for reading C.to read2 Could you tell me _ the Internet?A.how to search B.how search C.how can I search D.how searching,C,A,3 We can use MSN to talk with each other on the internet.Really?Will you please show me _?A.what to use B.how to use it C.where to use it4 What about going swimming with me?Sorry.I have a lot of homework _.A.to do B.done C.do D.to be done,B,A,Exercise,你想让我和你一起去吗？老师经常告诉我们上课不要讲话。上星期天林丽邀请我和她一起打乒乓球。,Do you want me to go with you?,Our teacher often tells us not to talk in class.,Lin Li invited me to play table tennis with her last Sunday.,At first I felt a bit shy about speaking English in front of so many people.(P54)一开始我觉得在那么多人面前讲英语有些害羞。解析：a bit“一点点”，可以用于修饰动词、形容词和形容词的比较级。例如：He turned down the TV a bit.他把电视关小了点。I am a bit taller than my father.我比父亲高一点点。,此外，a bit of还可以修饰不可数名词。例如：He knows a bit of(=a little)Japanese.他会一点点日语。选择最佳答案填空。()Let me give you _ advice!A.a bit B.a bit of C.a little ofD.a little,B,though和although都可以表示“虽然”，但不要根据汉语习惯，在后面使用连词 but,不过有时它可与 yet,still,nevertheless 等副词连用。如：他虽然年纪很大了，但还很强壮。误：Although he is very old,but he is quite strong.正：Although he is very old,(yet)he is quite strong.,though&although,有时用于主句之后，起补充说明的作用，相当于 however,but。如：He is poor although he is always happy.他很穷，然而却过得很开心。The price increase will obviously be unpopular,although its unlikely to reduce demand.价格升高显然会不受人欢迎，然而这不大可能降低人们的需求。,though&although,相同点：用作连词表示“虽然”，两者大致同义，可换用，只是 although 比 though 更为正式：Though(Although)it was raining，we went there.虽然下着雨，但我们还是去了那儿。Though(Although)it was barely four oclock,the lights were already on.尽管才四点钟，灯已经亮了。Though(Although)we are poor,we are still happy.我们虽然穷，但仍然很快活。,though&although,()1._ the story is short and simple,it is difficult to understand.A.ButB.Although C.And D.For()2.She closed her eyes _ she were tired.A.thoughB.as although C.although D.as though,B,D,选择最佳答案填空。,()3.Its not easy _ a foreign language well.A.learningB.to learn C.learnedD.to learning()4._ he is in poor health,_ he works hard.A.Although;butB.Though;however C.Although;/D./;but,B,C,选择最佳答案填空。,Please fill in the following blanks with the right forms of the given words.1.We decided _ lunch.(have)2.They failed _ the test.(pass)3.She forgot _ her book.(bring)4.I hope _ in Canada.(study)5.He managed _ his pen.(find)6.They offered _ us.(help)7.We plan _ her tomorrow.(visit)8.I promise _ good.(be),to have,to pass,to bring,to study,to find,to help,to visit,to be,Please fill in the following blanks with the right forms of the given words.1.She enjoys _.（swim)2.They finished _ their homework.(do)3.He prefers _(read)to _(write).4.I hate _ medicine.(take)5.I like _ English.(learn)6.I love _ abroad.(travel)7.Would you mind _ me?(help)8.She practised _ every evening.(sing),swimming,doing,reading writing,taking,learning,travelling,helping,singing,Part A 动名词的构成,动名词由动词原形加-ing 构成，其构成法与现在分词一样。如do doing,Communicating is not just speaking.,动名词在句子中可以充当主语的作用。,In Western culture,making eye contact in conversations is necessary.,动名词作主语时，谓语用单数形式,Part A Gerunds as subject(主语),Communicating is not just speaking.,In many Asian cultures,avoiding eye contact shows respect.Staring at people is also considered rude.,动名词作主语时，谓语用单数形式,Communicating is not just speaking.,Part A Gerunds as subject(主语),动名词用法小议,一、构成：动名词由“动词原形+ing”构成，其变化规则与现在分词的变化规则相同。二、用法：动名词既有名词的特征，也有动词的特征。它可以在句中作主语、宾语、表语和定语。在本单元我们主要学习它作主语和宾语的用法。,动名词用法小议,动名词（短语）作主语时，谓语动词要用单数。例如：Communicating is not just speaking.交流不仅仅是说话。Sitting straight means a person is confident.端坐表明一个人是自信的。,三、动名词作主语或介词宾语时还要注意以下几点：英语中有一些动词（短语）后面常接动名词作宾语。如：finish,enjoy,mind,keep,suggest,avoid,miss,practise,admit,deny,cant help等。,动名词用法小议,常见的“动词介词+动名词”的短语有：prefer.to,be/get used to,look forward to,feel like,give up,keep on,insist on,succeed in等。例如：He doesnt feel like doing his homework.他不想做家庭作业。You must give up smoking at once.你必须马上戒烟。,用于某些惯用法中。例如：(1)be busy doing sth“忙于做某事”Mother is busy cooking dinner in the kitchen.妈妈在厨房忙着做饭。(2)be worth doing sth“值得做某事”The book is worth reading.这本书值得一读。(3)Its no use/good doing sth“做无用/无好处”Its no use asking him for help.向他寻求帮助没有用。,【强化训练】一、选择最佳答案填空。()1.They insisted on _ another chance to try.A.gotB.gettingC.being gotD.to be got()2.Jack said that he wouldnt mind _ for us.A.to waitB.waitC.waitingD.waited()3.My brother keeps _ my favourite book.And I want it back!A.to takeB.takeC.takingD.took,getting,waiting,taking,4.We should often practise _ English with each other.A.to speak B.spokeC.speak D.speaking5.What about _ to the concert with us?A.we go B.we goingC.going D.to go,D.speaking,going,巩固练习,1.The film is worth _(see).2._(smoke)is forbidden in class.3.The key is for _(lock)the door.,seeing,locking,Smoking,4.They are looking forward to _(travel)to Beijing.5._(do)more exercise is good for our health.6.What about _(go)for a walk?,Doing,going,traveling,