1、动词不定式-我看谁还要to do!目录Catalog1 引入2 to do句法作用3 光说不练假把式4 总结PART 01PART 01Warming upWarming upWe decide to eat something special.Mommy.I want to eat baked yam(烤山药）.My mother asks me to buy wowotos(窝窝头）.PART 02PART 02to do句法作用1）基本形式：肯定式:to do否定式:not to do省略to的:do2）特点 ：A.没有人称和数的变化B.可以有自己的宾语和状语 C.有时态和语态的变化（被
2、动语态的形式为 to be +动词过去分词）to do不定式to do不定式在句子中充当的成分主语谓语宾语表语定语状语X(3)用法：A、作主语 不定式做主语时，可以直接放在谓语动词之前。不定式做主语时，可以直接放在谓语动词之前。To see is to believe Not to get there in time is your fault.注：注：常用常用it做形式主语，将做形式主语，将to do放在谓语之后，放在谓语之后，使句子保持平衡。使句子保持平衡。句型句型1：It+谓语谓语+to doIt takes us an hour _ get there by bus.句型句型2：Its
3、+n.+to doIts our duty _ help the poor.句型句型3：It is adj.for/of sb.to do sth.It is+adj+for sb to do sthIt is+adj+of sb to do sth（是形容人的品质的是形容人的品质的）（是形容事物的性质的是形容事物的性质的）It is easy for me to finish this work before ten.It is very kind of you to give me some help.Its impolite of you to speak to the teacher
4、like that.You are very kind to give me some help.you are impolite to speak to the teacher like that.A、作主语 1.Its necessary (take)medicine on time.2.Its not easy for him so much homework in one day.(do)3.Its time for us _（have）supper 试一试1.to take 2.to do 3.to have答案：答案：如:The important thing is to fini
5、sh the work on time.B、作表语1.及物动词动词+to do常见及物动词动词有agree,decide,fail,hope,wish,want,plan 等 She wanted to get home earlier that day.2.动词+疑问词+to do I dont know what to do.3.动词+it(形式宾语）+宾补+to doI find it important to learn English.C、作宾语决定期望请求做拒绝同意保证做决定学习计划做做好决定负担起want would like,hope,ask refuse,agree,prom
6、ise,decide,learn,plan,choose,afford I refuse _(answer)your question.Its a secret.Do you plan _(watch)a talent show or a sports show tonight?接不定式作宾语的动词口诀：C、作宾语迫不及待下决心做过去常常未能做的事cant wait to domake up ones mind to doused to dofail to do接不定式作宾语的动词口诀：C、作宾语既可加doing又可加to do作宾语的动词:A.begin,start无区别B.like,dis
7、like,love,hate +doing 长期爱好或习惯 +to do 暂时想法C.continue,go on,stop +doing 继续/停止做一件事 +to do 继续/停止做另一件事C、作宾语D.forget,remember +doing 忘记/记得做过的事 +to do 忘记/记得要去做某事E.try/cant help try doing 尝试做某事 try to do 尽力地做某事 cant help doing 情不自禁做某事 cant help to do 不能帮助做某事既可加doing又可加to do作宾语的动词:C、作宾语1.Boys,dont forget _ t
8、he windows before you leave the classroom.A.closingB.closedC.to closingD.to close2.She reached the top of the hill and stopped _ on a big rock.A.to have restedB.restingC.to restD.rest3.Remember _ the lights when you leave the office.A.to turn offB.turning offC.turn offD.to turning off试一试1.Boys,dont
9、forget _ the windows before you leave the classroom.A.closingB.closedC.to closingD.to close2.She reached the top of the hill and stopped _ on a big rock.A.to have restedB.restingC.to restD.rest3.Remember _ the lights when you leave the office.A.to turn offB.turning offC.turn offD.to turning off答案：答案
10、：1.动词+宾语+to do Li Mei asked me to show her the new dictionary.注：有以上结构的常用动词有 tell.wish,ask,want,like,beg,invite,warn,allow,encourage,advise 等。2.动词+宾语+do(不带 to 的不定式)注：常用的动词是：感官动词see,hear,feel,watch,notice；使役动词 have,make,let.D、作宾补请求与命令ask sb.to do sth.tell sb.to do sth.想要邀请期待鼓励与建议want sb.to do sth.invi
11、te sb.to do sth.expect sb.to do sth.encourage sb.to do sth.advise sb.to do sth.接不定式作宾语补足语的动词口诀：D、作宾补接不定式作宾语补足语的动词口诀：答应告诫允许提醒和帮助promise sb.to do warn sb.not to do sth.allow sb.to do sth.remind sb.to do sth.help sb.(to)do sth.D、作宾补一感，二听，三让，四看，五帮助：feelhear,listen tolet,make,have,look at,see,watch,notic
12、ehelp sb.（to）do sthhad better（not）do sth.why not/why dont you do sthwould ratherwould you please情态动词+do助动词+do省略to的情况:D、作宾补I often hear them sing this song.注意：当这类动词转为被动语态时，其后的不定式则要加上“to”如：He is often heard _ the song.He was seen _ the room.省略to的情况:D、作宾补It made me feel thirsty.I was made to feel thirs
13、ty.省略to的情况:D、作宾补A.表目的(to do/in order to/so as to do)He worked day and night to get the money.B.表原因They were very sad to hear the news.C.表程度It is too dark for us to see anything.E、作状语不定式作定语修饰名词，要放在所修饰的名词之后(又称后置定语)。There is nothing to worry about.Vinny is the first disabled person to sail around the w
14、orld.F、作定语To tell you the truth,youd better change your car.说实在话，你最好换换你这辆车。To be fair,its not his fault,hes not the one to blame.说句公道话，这不是他的错，不该责备他。G、作插入语to do的一些常用结构have(has,had)+不定式“不得不”，“只好He will have to swallow the bitterness sooner or later.他迟早要吞下这颗苦果的。As she missed the train,she had to return
15、 home.由于耽误了那趟火车，她只得又回家去了。there is(are)+不定式There is something important to do today.今天有一件重要的事情要做。“疑问词+不定式”不定式前可带what，who，which，where，when，how等疑问词，这种不定式结构相当于名词性短语，可在句中做主语、宾语或表语。What to do next is still a question for me.（做主语）He didnt tell me where to go.（做宾语）The problem is where to find him.（作表语）“to b
16、e+过去分词”表达不定式的被动语态意义。There are twenty more trees to be planted.“too+adj+to do”“太而 不能”。The boy is too young to join the army.这孩子太小，还不能参军。adj./adv.+enough+to do “足够.做.”This car is not big enough to sit five people.这辆车不够大，坐不下五个人。PART 03PART 03光说不练假把式1.My mother often asks me _ some cleaning on Sundays A
17、 do B.does C.did D.to do 2.Do you often hear John _in his room?Listen!Now we can hear him _ in his room.A.sing,to sing B.sing,sing C.sing,singing D.to sing,singing 3.Would you please tell me next?A.how do B.what to do C.what do I do D.how I should do 4.For a time his grandmother found _ accept his n
18、ew idea.A.hard B.it hard C.it hard to D.hard to5.Youd better _a bus.A.to catch B.catch C.catches D.catching单项选择6.The teacher told them _ make so much noise.A.dont B.not C.will not D.not to 7.It took a long time for the connection between body temperature and illness _.A.to make B.to be made C.making
19、 D.being made 8._ this cake,youll need 2 eggs,175 g sugar and 175 g flour.A.Having made B.Make C.Making D.To make9.The mother felt herself _ cold and her hands trembled(颤抖)when she read the letter from the battlefield(战场).A.turn B.turned C.to turn D.to have turned10.Rather than _ on a crowded but,he
20、 always prefers _ a bicycle.A.ride;ride B.riding;ride C.ride;to ride D.to ride;riding单项选择1.Its very cold outside.Please tell the boy the coat.(take off)2.Would you like_（go）shopping with me？3.It took us half an hour_（work)out the problem 4.He is old enough_（join)the army 5.I am sorry.I forgot_（tell)
21、you the news6.I am sorry _(give)you so much trouble.7.The old lady was sent to hospital _(have)a physical examination.8.Do you know what _(do)next?9.The doctor did what he could _(save)the old man.10._(improve)English,you must practise as much as possible.用所给词的适当形式填空答案：1-5:DCBCB6-10:DBDAC1.to take off 2.to go 3.to work 4.to join 5.telling 6.to have given 7.to have 8.to do 9.to save 10.To improvePART 0PART 04 4Summary总结to do不定式1.作主语2.作表语3.作宾语4.作宾语补足语5.作状语6.作定语7.作插入语8.常用结构1.基本形式2.句法作用1.肯定式2.否定式3.省略
