动词不定式》PPT课件.ppt

动词不定式不定式1.肯定：肯定：to+V.原原 或者或者(to)+V.原原 否定：否定：not/never+(to)+V.原原1)He likes to read novels.2)I saw him come.3)We decided not to buy that house.4)It is interesting to fly a kite.5)Please let him not go there.动词不定式的不定式的结构构2.作主作主语To hear your voice is so nice.To study hard is very important.It is so nice to hear your voice.It is very important to study hard.不定式作主语时，通常用it作形式主语，把真正的主语放在后面。注意注意:1、It is+adj.for/of sb.to do sth.不定式做主不定式做主语 谓语动词用用单数数3.It+be+adj.+for/of sb.to do sth.for:adj.多多为描描述述不不定定式式行行为的的特特征征（important/necessary/interesting 等等.）of:adj.多多为 描述主描述主语的品的品质特征特征 （kind/nice/friendly/wise/foolish 等等.）作主作主语It is easy _ her to learn English well.It is clever _ you to solve the problem.offor4.2、It takes sb.some time to do sth.It takes me three hours to finish the homework every day.作主作主语我每天花去三个小时完成家庭作业。I spend three hours finishing the homework every day.5.3、It is+n.(for sb)to do sth.It is my pleasure to help you with your English.作主作主语6.4 4、用在、用在谚语中中 To see is to believe.To say is easy,but to do is hard.作主作主语7.1、It is necessary _us to learn to wait.(of/for)2、It was careless _me to break the cup.（of/for)3、It took them 1,000 yuan _this table.(buy)4、It is my pleasure _ the box for you.(carry)to buyforofto carry练习8.5、轮到我到我们打打扫教室了。教室了。It is our turn_6、To waste time is to shorten life.（翻（翻译成中文）成中文）to clean the classroom.浪浪费时间就是就是缩短生命。短生命。练习9.1 1、动词+to do sth.常用常用动词有：有：want/wish/like/would like/hope/plan/try/decide/learn/need/agree/begin/start/forget/remember/manage/seem/fail/manage/promise等等 1、I hope to finish it tomorrow.2、She plans to go and teach in the country.作作宾语决定决定 学学习(有有)希望，希望，设法法 拒拒绝 想想 假装假装主主动 答答应 选 计划，划，同意同意 请求求 帮一帮帮一帮10.2 2、动词疑疑问词+to do I dont know_ next.She cant decide_.作作宾语 2、她不能决定买哪本书。1、我不知道接下来该做什么。what to dowhich book to buy=She cant decide which book she should buy.11.3 3、主、主语+谓语+it+adj./n.+to do+it+adj./n.+to do作作宾语常常见的的谓语动词：find,think,consider,feel,make等等The dusty air makes it difficult to get a clear picture of space.大气中的尘埃使人难以获取太空的清晰图像。我认为学好英语很重要I think it important to learn English well.12.1、Dont forget _.(关灯关灯)2、I happened _when he called me.（出去）（出去）3、I dont want_.(依依赖别人）人）4、Sam is learning_.(怎怎样开开车）5、We promise _ the environment.(保保护)to turn off the lightto go outto depend on othershow to drive a car练习to protect13.1、动词+宾语（sb./sth.)+to do sth.作作宾补-对宾语进行行补充充说明明 She asked me to help her.The teacher told him to come on time.Edisons mother taught him to read and write.常用的常用的动词有：有：ask,allow,advise,want tell,order,teach,expect等等14.动词多多为感官感官动词、使、使动词。一感：feel二听：hear,listen to三使：make,let,have四看：see,notice,watch,look atJohns mother makes him play the piano every day.变被动时 是省略的不定式符号 to要还原回来：hear sb do sb be heard to do sthJohn _ play the piano every day.is made to2、动词+宾语+不不带to的不定式的不定式注意注意:15.1、Let him _ the work at once.(finish/to finish)2、Do you like listening to other people_?(talk/talking/to talk)3、Jim was seen _the room.(enter/to enter)4、Please tell her _here on time.(come/to come)finishtalkto enterto come练习16.5、Ill help you _this problem.to solve/solve)6、I wish you will stay with us.(改成改成简单句）句）7、Her story made us laugh.(改成被改成被动句）句）(to)solveI wish you to stay with us.We were made to laugh by her story.17.1、主、主语+be+to do sth 主主语多多为 duty/wish/hope/idea/plan/ambition/dream/work/job 等等 名名词 1、My ambition is to be a singer.2、His work is to clean the classroom every day.作表作表语我的梦想是成为一名歌手。他的工作是每天清扫教室。18.2 2、谚语中中1、To know everything is to know nothing.2、To see is to believe.19.放在被修放在被修饰词的后面的后面I have a lot of work to do.I want to find something to drink.作定作定语不定式不定式为不及物不及物动词时后面后面应有必要的有必要的介介词。Im looking for a hotel _.A.stay B.stay at C.to stay D.to stay atD位置位置：20.He hasnt got a house to liveI have no pens to write _.in withHe bought a toy to play with.21.1、原因状、原因状语:主主语+be+adj.(表情感表情感)+to do sth.(happy/glad angry /sorry/sad/afraid 等等)Im sorry to hear that.作状作状语Im glad to see you.22.2 2、目的状、目的状语 The soldier ran into the room to save the girl.Tom went to the airport _(去接他的爷爷)to meet his grandpa23.3 3、结果状果状语 too+adj./adv.+to do sth.adj./adv.enough to do sth.You are too young to do this job.He ran fast enough to catch the bus.24.动词不定式可以充当的句子成分不定式可以充当的句子成分1、作主、作主语2、作、作宾语3、作、作宾语补足足语4、作表、作表语5、作定、作定语6、作状、作状语25.All I did was to give him some advice.His dream is to travel all over the world.Lucy needs a friend to play with.He was the last guest to arrive.Its interesting to read a science fiction.下列不定式作何种成分？下列不定式作何种成分？（表（表语）（表（表语）（定（定语）（定（定语）（主（主语）26.He was glad to see you.My father offered to buy a computer for me.He interviewed detective Ken to get some information.The doctor asked him to have more fruit and vegetables.（状（状语）（宾语）（状（状语）（宾语补足足语）下列不定式作何种成分？下列不定式作何种成分？27.1、习惯于be used to _ 被用于be used to _Water is used to _(put)out fires.I am used to _(take)a walk after supper.2、prefer to 比起来更喜欢 比起游泳来，我更喜欢跑步。I prefer _ to _.3、look forward to 期待，盼望Im looking forward to _(visit)Beijing again.介介词 to 与与不定式不定式 to 的区的区别puttakingrunning swimmingvisitingdodoing28.Exercises1.-Youve done very well this time.-Its really kind _.A.for you to say so B.for you saying soC.of you to say so D.of you saying so2.It is better to lose ones life than _.A.if you lose your spiritB.losing his spiritC.to lose ones spiritD.your spirit getting lostCC29.3.I cant work in this way.-Why not _ it in some other way?A.try to doB.try doingC.trying to doD.trying doing4.Since you find it difficult _ a decision,youd better a discussion(讨论)with your parents.Areach;haveB.reaching;haveC.reach;havingD.to reach;haveBD30.5.My father hates(痛恨痛恨)_.He never allows me _.A.to smoke;to smokeB.smoking;smokingC.smoke;smokingD.smoking;to smoke6.The girl was beginning _.A.get angry B.to get angryC.getting angry D.angryDB31.7.There isnt any difference between the two.I really dont know _.A.where to chooseB.which to chooseC.what to choose D.to choose which8.The bag is too heavy for me _.A.to carry itB.not to carry itC.to carryD.not to carry9.The teacher will teach him _.A.to useB.use itC.how to use itD.usesBCC32.