英语高中人教版必修4学案：Unit2 2.4含解析

Period 4语法专题课学习目标1.Understand the sentences in the reading passages containing the -ing form as the subject and object.2.Remember the basic sentence patterns which contain the -ing form as the subject and object.This will help them understand some complex sentences.呈现新知Translate these two sentences.1.学习英语很重要。

2.我喜欢学英语。

感受新知Ⅰ.Find sentences in this reading passage containing the -ing form.Read these sentences and analyze them.1.Finding ways to grow more rice has been his life goal.2.He saw the great need for increasing the rice output.3.Yuan Longping searched for a way to increase rice harvests without expanding the area of the fields.4.He doesn’t care about being famous.5.Spending money on himself or leading a comfortable life also means very little to him.6.Just dreaming for things,however,cost nothing.7.He awoke from his dream with the hope of producing a kind of rice that could feed more people.Ⅱ.Let the Ss read aloud the sentences they picked out,think over and discuss with their classmates in the groups how each of these -ing forms is being used in the situation.活动探究the -ing form as the subject and object1.作主语动词-ing形式作主语时,句子有两种形式:(1)动词-ing形式直接置于句首主语的位置上。

捉弄别人是我们万万不能做的。

is something we should never do.学习新单词对我来说非常重要。

is very important for me.(2)用形式主语it,把真正的主语——动词-ing形式移置句尾。

但这种句子形式有一定的限制,作表语的只能是某些形容词或少数名词,如:useful,useless,good,fun;no use,worth。

和他争辩是没有什么用的。

is useless .跟你在一起工作是令人愉快的事。

is pleasant .归纳:常用-ing形式作主语的句型有:It+be+a waste of time doing... 做……是浪费时间的。

It is/was worth/worthwhile doing... 做……是值得的。

There is no sense in doing... 做……没有道理。

There is/was no point doing... 做……无意义。

2.作宾语动词-ing形式作宾语有两种情况:一是有些动词只能后接动词-ing形式作宾语;二是有些动词后既可接动词-ing形式也可接不定式形式作宾语。

(1)只能后接动词-ing形式作宾语的动词,常见的有avoid,consider,enjoy,keep,finish,suggest,dislike,risk,delay,escape,cannothelp,imagine,mind,miss,practice,cannot stand,put off,give up等。

你是否考虑过找一位挚友?Have you one special friend?晚饭后你想和我一起散步吗?Do you with me after supper?(2)既可接动词-ing形式又可接不定式形式作宾语的动词(短语),常见的有:begin,start,continue,like,love,prefer,try,mean,forget,remember,hate等。

①在动词forget,remember,regret之后,用动词-ing形式与不定式形式意义不同。

动词-ing形式表示动作先于谓语发生,不定式形式表示后于谓语动作。

我记得我已把信寄了。

I remember .我会记着去寄信的。

I’ll remember .我真后悔没赶上那次报告会。

I regret .我遗憾地告诉你,我不能接受你的建议。

I regret I can’t take your advice.②在try,mean之后,意义各不相同,如try to do (设法),try doing (试着),mean to do (打算,有意要做),mean doing (意思是,意味着)。

我并不想让你生气。

I didn’t mean .你的计划意味着要花费几个小时。

Your plan would mean .③go on doing 和go on to dogo on doing继续做一直在做的事;go on to do接着做另外一件事。

请接着做这同一个练习。

Please go on the same exercise.请做另外一个练习。

Please go on the other exercise.3.作介词宾语动词-ing形式可与介词一起构成介词短语(1)介词+动词-ing形式我向你道歉,刚才对你那样生气。

I apologize with you.(2)动词+介词+动词-ing形式我坚持为这次出行带足需要的食物。

2)I insist for this expedition.下列短语中的to都是介词,所以后面跟名词或动词-ing形式:devote to,object to,pay attention to,get down to,lead to,look forward to,stick to,be used to等。

巩固运用Ⅰ.翻译句子1.与他争论就是浪费时间。

2.做这件傻事毫无意义。

3.他们脸上没有笑容,相反都做了鬼脸。

4.我们得想办法改变人们的习惯。

5.人们忍不住嘲笑那个愚蠢的人。

Ⅱ.单项填空1.Mark often attempts to escape whenever he breaks traffic regulations.A.having been finedB.to have been finedC.to be finedD.being fined2.I really appreciate to help me,but I am sure that I can manage by myself.A.you to offerB.that you offerC.your offeringD.that you are offering3.The thief took away the woman’s wallet without.A.being seenB.seeingC.him seeingD.seeing him4.No one can avoid by advertisements.A.to be influencedB.being influencedC.influencingD.having influenced5.They are considering before the prices go up.A.of buying the houseB.with buying the houseC.buying the houseD.to buy the house6.If I had remembered the door,the things would not have been stolen.A.to lockB.lockingC.to have lockedD.having locked7.My transistor radio isn’t working.It .A.need repairingB.needs to repairC.needs repairingD.need to be repaired8.It is no use me not to worry.A.you tellB.your tellingC.for you to have toldD.having told9.He is very busy his papers.He is far too busy callers.A.to write;to receiveB.writing;to receiveC.writing;receivingD.to write;for receiving10.The suspect at last admitted stolen goods but denied them.A.receiving;sellingB.to receive;to sellC.to receiving;to sellingD.to have received;to have sold参考答案呈现新知1.Studying English is very important.2.I like learning English.感受新知Ⅰ.1.the -ing form as subject2.the -ing form as object3.the -ing form as object4.the -ing form as object5.the -ing form as subject6.the -ing form as subject7.the -ing form as object 活动探究1.(1)Playing tricks on others;Learning new words(2)It;trying to argue with him It;working with you2.(1)considered looking for feel like having a walk(2)①posting the letter;to post the letter;missing the report;to say②to make you angry;spending hours③doing;to do3.(1)for being so angry(2)on taking proper food巩固运用Ⅰ.1.It is a waste of time arguing with him.2.There is no point doing such a silly thing.3.Instead of smiling,each of them made a face.4.We’ve got to think of ways of changing people’s habits.5.People couldn’t help laughing at that foolish man.Ⅱ.1~5 DCABC6~10 ACBBA。