to do不定式公开课PPT学习教案

1、会计学1to do不定式公开课不定式公开课nto第1页/共37页Step 1 基本形式和否定形式基本形式和否定形式肯定式肯定式: to do 否定式否定式: not to donot to give upnot to take care of第2页/共37页动词不定式的时态和语态动词不定式的时态和语态I opened the door to enter the room. . 一般式一般式( to do /to be done).不定式的一般式所表示的不定式的一般式所表示的动作（状态）同时（或几动作（状态）同时（或几乎同时）发生，或之后发乎同时）发生，或之后发生。生。Step 2第3页/共37

2、页.进行式进行式( to be doing)They seemed to be talking about something secret when I came in.如果谓语表示的动如果谓语表示的动作（情况）发生时作（情况）发生时，不定式所表示的，不定式所表示的动作正在进行。动作正在进行。第4页/共37页. 完成式（完成式（to have done/to have been done)2. Im pleased to have been given this chance.1. You seemed to have read the novel written by Mr. Smith.

3、如果不定如果不定式的动作式的动作发生在谓发生在谓语之前。语之前。如果不定式的逻辑主语是不定式所表如果不定式的逻辑主语是不定式所表示的动作的承受者，不定式要用示的动作的承受者，不定式要用被动被动形式形式.第5页/共37页语态语态时态时态主动语态主动语态被动语态被动语态一般时一般时 进行时进行时完成时完成时 小小 结结to doto be doneto be doing/to have done to have been done第6页/共37页1.Hello! Its good _ (see) you again.2.Bye-bye, Im glad _ (see) you. 3.They pr

4、etend _(work) hard when the teacher came in.4.The girl students is said _ (send) abroad last week.5.All the students in our class have entered for the sports-meeting _ (hold) next week.第7页/共37页1. Its important for us to learn English well.2. Its wise/kind of him to help the poor.第8页/共37页To do like t

5、hat is foolish.I want to see you this evening.All you have to do is to finish it quickly.We found a house to live in.She came here to study English. I warned the patient not to eat cold water after the operation. 主语主语 宾语宾语表语表语 定语定语 状语状语 宾补宾补Step 4 Step 4 不定式的用法不定式的用法第9页/共37页作主语作主语_is our duty._is ri

6、ght= It is right to give up smoking.1.帮助你是我们的职责。帮助你是我们的职责。2. 放弃吸烟是对的。放弃吸烟是对的。不定式短语作主语时，如果不定式短语作主语时，如果主语如果太长，主语如果太长，常常用用it 作形式主语，真正的不定式主语后置。作形式主语，真正的不定式主语后置。To help you To give up smoking第10页/共37页作主语作主语。一般用不定式做主语的句型 It +be +adj./n. + for sb. to do sth/ of sb to do sthIt +take +sb +time + to do sthIt

7、+cost +sb +money + to do sth第11页/共37页动词不定式动词不定式作宾语作宾语动词动词 + to do动词动词+疑问词疑问词 + to do 动词（动词（ think, consider, make, believe等) + it+宾补宾补 +to do常见动词有常见动词有 afford, agree, arrange, ask, decide, demand, plan desire, expect, hope, learn, manage, offer, pretend, promise, refuse, wish, prefer, happen, intend

8、, fail等等I dont know what to do .I find it important to learn English.第12页/共37页第13页/共37页第14页/共37页第15页/共37页动词不定式动词不定式作宾补作宾补动词动词 + 宾语宾语 +to do 动词动词 + 宾语宾语 + do Li Mei asked me to show her the new dictionary .注：有以上结构的常用动词有注：有以上结构的常用动词有 tell. wish, ask, want , like, beg, invite,warn, allow,encourage,advi

9、se 等。等。(不带不带 to 的不定式的不定式) 注：常用的动词是：感官动词注：常用的动词是：感官动词see, hear, feel, watch, notice； 使役动词使役动词 have ,make,let.第16页/共37页在在feel, hear, listen to, look at, notice, observe, see, watch, have, let, make 等词后的补足语中，不定式不带等词后的补足语中，不定式不带to。但。但 是这些句子如果变成被动结构时，就必须带是这些句子如果变成被动结构时，就必须带to。Eg. I often hear him sing th

10、e song. He is often heard _the song. 注意 allow, ask, advise, encourage, expect, forbid, force, get, would like, order, permit, persuade, teach, tell, want, warn, wish( (构成构成“V.+ Sb.+ to doV.+ Sb.+ to do”的形式的形式) )to sing宾补宾补第17页/共37页 请求与命令请求与命令 想要邀请期待鼓励与建议想要邀请期待鼓励与建议 答应告诫允许提醒和帮助答应告诫允许提醒和帮助第18页/共37页第19

11、页/共37页第20页/共37页第21页/共37页作表语作表语My job is_To see is_.1. 我的工作是教英语。我的工作是教英语。2. 眼见为实。眼见为实。to teach English.to believe第22页/共37页作定语作定语（必须后置）（必须后置） 1. Betty was the first/the last to come to school.2. We ll attend the meeting to be held next week.3. I have a child to look after at home. Do you have anything

12、 to say. Its a good school to study in.(具有逻辑上具有逻辑上的主谓动宾关系）的主谓动宾关系）第23页/共37页nHe had no place to live注意 第24页/共37页作状语作状语He spoke loudly (so as / in order) to be heard.They jumped with joy to hear the news.Im too tired to walk any further tonight.目的状语目的状语.原因状语原因状语.结果状语结果状语第25页/共37页He went home _ his key

13、What have I said _you happy?We are proud _the football matchto getto maketo have won目的状语目的状语.原因状原因状语语.结果状语结果状语Consolidation(p20)第26页/共37页 在学习动词不定式的时候还有在学习动词不定式的时候还有两点两点要注意哦要注意哦！1、在、在感官动词感官动词和和使役动词使役动词后作宾补时，不定后作宾补时，不定式要式要省略省略to,但以上词变为但以上词变为被动语态被动语态时，要时，要加上加上to, 如如I always saw her play violin .He was

14、made to work 12hours a day.第27页/共37页1. The question is hard to answer.=its hard to answer the question.(位置互换）2. I have some books to read. I have a room to live in. Give me sth to drink.(同时满足主谓上的动宾关系）3. Nobody was to blame for the accident.4. The question is what to do next.5. I cant go out to play

15、with much work to do.注意：I have some letters to post. （p20) I have some letters to be posted. 第28页/共37页 保留to到为止 to后有be,have,要保留1. I havent been to American, and I wish to.2. -Are you on holiday? - no, but I would like to be.3.-Has Tom finished his homework? - He seems to have. 第29页/共37页第30页/共37页第31页/共37页第32页/共37页第33页/共37页1. My mother often asks me _ some cleaning on Sundays A do B. does C. did D. to do 2. Do you often hear John _in his room ? Listen! Now we can hear him