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1、todotodo不定式公开课不定式公开课20189262018926本节课重点提要本节课重点提要o1. 不定式的基本形式和否定形式不定式的基本形式和否定形式o2. 不定式作主语不定式作主语o3. 不定式作宾语不定式作宾语o4. 不定式作目的状语不定式作目的状语oThey advised me to make a budget. oThey advised me _ _ _ a budget.oHe promised to give away all his money.oHe promised _ _ _ _ all his money.Step 1 基本形式和否定形式基本形式和否定形式肯定式
2、肯定式: to do 否定式否定式: not to donot to makenot to give away_is our duty._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 the poor To plant more treesStep 2 作主语作主语 一般用不定式做主语的句型 It +be +adj./n. + for s
3、b. to do sth. / of sb. to do sth.It +take +sb. +time + to do sth.It +cost +sb. +money + to do sth.Step 2 作主语作主语 1.Its important for us to plant more trees.2.Its kind of him to help the poor.如何确定如何确定for 和和of?Step 2 作主语作主语 Make your own sentences using for or of.o It is warm-hearted o It is necessaryo
4、 It is generouso It is difficultStep 2 作主语作主语 动词动词 + to do动词动词+疑问词疑问词 + 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, fail等等I dont know what to do .Step 3 作宾语作宾语 只能接不定式作宾语的动词只能接不定
5、式作宾语的动词口诀：口诀： 决定想做计划需要同意，能做被用来做的事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迫不及待下决心做过去常常未能做的事Step 3 作宾语作宾语 决定想做计划需要同意，能做被用来做的事决定想做计划需要同意，能做被用来做的事 decide to do sth. 决定做某事决定做某事 want would like to do sth. 想做某事想做某事 plan to do sth. 计划做某计划做某 need to do sth. 需要做某事需要做某事 agree to do sth. 同意做某事同意做某事 afford to do 能做
6、某事能做某事 be used to do 被用来做被用来做 迫不及待下决心做过去常常未能做的事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迫不及待地要做某事 make up ones mind to do 下决心做某事下决心做某事 used to do 过去常常做某事过去常常做某事 fail to do 未能做某事未能做某事 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迫不及待下决心做过去常常未能做的事Make sentencesmake more moneyM
7、ake sentencesbuy the carMake sentenceshave the sports meetingMake sentencesfinish the homeworkMake sentencesgive away moneyHe spoke loudly (so as / in order) to be heard.目的状语目的状语.He donated five yuan _.I study English hard _.Step 4 作目的状语作目的状语so as not to / in order not to Wise WordsWe do what we hav
8、e to do in order to do what we want to do. 激辩风云Wise WordsLove is like waiting for a bus. In order to get happiness, you need patience.Wise WordsLife is like riding a bicycle in order to keep your balance, you must keep moving. -Albert EinsteinWise WordsAttempt the impossible so as to improve your work.Wise WordsSometimes, we need to be hurt in order to grow. We must lose in order to gain. Sometimes, some lessons are learned best through pain.Create your wise words using in order to doWhat have we learnt today?结束结束
