todo不定式公开课2018926.ppt

1、To,to do 动词不定式的用法,本节课重点提要,1. 不定式的基本形式和否定形式 2. 不定式作主语 3. 不定式作宾语 4. 不定式作目的状语,They advised me to make a budget. They advised me _ _ _ a budget. He promised to give away all his money. He promised _ _ _ _ all his money.,Step 1,基本形式和否定形式,肯定式: to do 否定式: not to do,not to make,not to give away,_is our duty

2、.,_is right= It is right to plant more trees.,1.帮助穷人我们的职责。,2. 种更多的树是对的。,不定式短语作主语时，如果主语如果太长， 常用it 作形式主语，真正的不定式主语后置。,To help the poor,To plant more trees,Step 2 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 sth. It +take +sb. +time + to do sth. It +cost +sb. +money + to do sth.,

3、Step 2 作主语,Its important for us to plant more trees. Its kind of him to help the poor.,如何确定for 和of?,Step 2 作主语,Make your own sentences using for or of.,It is warm-hearted It is necessary It is generous It is difficult,Step 2 作主语,动词 + to do,动词+疑问词 + to do,常见动词有 afford, agree, arrange, ask, decide, de

4、mand, plan desire, expect, hope, learn, manage, offer, pretend, promise, refuse, wish, prefer, happen, intend, fail等,I dont know what to do .,Step 3 作宾语,只能接不定式作宾语的动词口诀：,决定想做计划需要同意，能做被用来做的事 迫不及待下决心做过去常常未能做的事,Step 3 作宾语,决定想做计划需要同意，能做被用来做的事,decide to do sth. 决定做某事 want would like to do sth. 想做某事 plan t

5、o do sth. 计划做某 need to do sth. 需要做某事 agree to do sth. 同意做某事 afford to do 能做某事 be used to do 被用来做,迫不及待下决心做过去常常未能做的事,cant wait to do 迫不及待地要做某事 make up ones mind to do 下决心做某事 used to do 过去常常做某事 fail to do 未能做某事,Try it now!,决定想做计划需要同意，能做被用来做的事 迫不及待下决心做过去常常未能做的事,Make sentences,make more money,Make senten

6、ces,buy the car,Make sentences,have the sports meeting,Make sentences,finish the homework,Make sentences,give away money,He spoke loudly (so as / in order) to be heard.,目的状语.,He donated five yuan _.,I study English hard _.,Step 4 作目的状语,so as not to / in order not to,Wise Words,We do what we have to

7、do in order to do what we want to do. 激辩风云,Wise Words,Love is like waiting for a bus. In order to get happiness, you need patience.,Wise Words,Life is like riding a bicycle in order to keep your balance, you must keep moving. -Albert Einstein,Wise Words,Attempt the impossible so as to improve your work.,Wise Words,Sometimes, we need to be hurt in order to grow. We must lose in order to gain. Sometimes,