2018人教版英语必修四同步导学精品课件Unit2Section2PPT教学课件

1、Unit 2Working the land Section Learning about Language第1页/共37页2 2自主预习自主预习3 3合作探究合作探究4 4巩固提升巩固提升5 5课课 时时 作作 业业1 1语法精讲语法精讲第2页/共37页语语 法法 精精 讲讲第3页/共37页情态动词()动词ing形式作主语和宾语第4页/共37页自自 主主 预预 习习第5页/共37页 用所给词的适当形式填空，并说明其在句中充当的成分。 1Since then，_ (find) ways to grow more rice has been his life goal.(主语) 2As a yo

2、ung man，he saw the great need for _ (increase) the rice output.(介词的宾语) 3Yuan Longping searched for a way to increase rice harvests without _ ( expand) the area of the fields.(介词的宾语) 4However，he doesnt care about _ (be) famous.(介词的宾语)finding increasing expanding being 第6页/共37页 5He enjoys _ (listen) t

3、o violin music，_(play) mahjong，swimming and reading.(宾语) 6_ (spend) money on himself or leading a comfortable life also means very little to him.(主语) 7Just _ (dream) for things，however，costs nothing.(主语) 8He awoke from his dream with the hope of _ (produce) a kind of rice that could feed more people

4、.(介词的宾语)listening playing Spending dreaming producing 第7页/共37页合合 作作 探探 究究第8页/共37页 语法精点 一、基础点拨 (一)动词ing形式在句子中可以作主语、定语、表语、宾语补足语和状语主动语态被动语态一般式doingbeing done完成式having donehaving been done第9页/共37页 1动词ing形式在时态上分为一般式和完成式。 一般式表示动词ing的动作和谓语动词的动作同时进行如下面例；完成式表示在谓语动词所表示的动作之前发生的动作如下面例。 She enjoys playing the pi

5、ano. 她喜欢弹钢琴。 He was praised for having done a good deed. 他因做了好事而受到表扬。第10页/共37页 2动词ing形式在语态上分为主动式和被动式。 主动式表示它的逻辑主语是ing分词的动作执行者，如下面例；被动式表示它的逻辑主语是ing分词的动作承受者，如下面例。 He insisted on sending her to hospital. 他坚持要把她送到医院去。 He insisted on being sent to work in the countryside. 他坚持要被派到乡下去工作。第11页/共37页 单句改错。 The

6、 building building (which is being built) there will be used as a library. 第二个buildingbeing built Being risen in the east，the sun looks beautiful. Being risenRising 完成句子。 _，they came into the room. 他们说着笑着走进了房间。 _ her address，we cant get in touch with her. 不知道她的地址，我们无法与她取得联系。Talking and laughing Not

7、knowing 第12页/共37页 (二)动词ing的形式作主语 1动词ing形式作主语时，多表示经常性、习惯性的动作，谓语动词多用单数形式。 Laughing often will benefit you a lot. 笑口常开好处多多。 Having lived abroad for a long time makes him homesick. 在国外生活了很久令他想家。第13页/共37页 2形式主语it代替动词ing形式作主语的常见结构： (1)It isadj.doing sth. It is/feels funny doing sth.做某事(感觉)很滑稽。 It is usele

8、ss doing sth.做某事无用 Its worthwhile doing sth.做某事是值得的 (2)It is a waste ofn.doing sth. Its a waste of time doing sth.做某事是浪费时间 (3)It is non.doing sth. Its no good/no use/no fun doing sth. 做某事没好处/没用/没意思第14页/共37页 (4)There benodoing( joking/knowing.) It is useless making such efforts. 做这样的努力是没用的。 It is a w

9、aste of time doing such work. 做这样的工作是浪费时间。 It is no good saying such words. 说那样的话没有好处。 There is no knowing how the project will be carried out. 不知道这个工程将如何实施。第15页/共37页 _ the mean man. 和这个吝啬的人争辩是没用的。 _ just _ doing nothing. 什么都不做，只是待在家里没意思。 There is _ how the project will be carried out. 不知道这个工程将如何实施。

10、 _ my favourite sport. 游泳是我最喜欢的一项运动。 Seeing is believing.(英译汉) _。It is useless/no use arguing with It is no fun staying at home no knowing Swimming is 眼见为实 第16页/共37页 (三)动词ing形式作宾语 1在admit，avoid，consider(考虑)，enjoy，escape，excuse，finish，imagine，mind，miss，practise，suggest，delay，appreciate等动词之后只能用动词ing形式

11、作宾语，不能用不定式。 He finally admitted having made such a mistake. 他终于承认犯了那样的错误。 The little girl practises playing the piano everyday. 这个小女孩每天练习弹钢琴。第17页/共37页 2在动词短语give up，put off，get to(着手)，object to，look forward to，devote oneself to，cant help(禁不住)，cant bear/stand等之后用动词ing形式作宾语。 Im looking forward to hear

12、ing from you. 我盼望着收到你的来信。 He devotes himself to looking into the matter. 他致力于调查这件事。第18页/共37页第19页/共37页 用所给词的适当形式填空。 Im looking forward to _ (hear) from you. He devotes himself to _ (look) into the matter. He finally admitted _ (make) such a mistake. She likes spending much money _ (buy)clothes for he

13、rself.hearing looking making buying 第20页/共37页 二、难点突破 (一)某些动词及动词短语后面既可以用不定式也可以用动词ing作宾语 1动词begin，start，continue等后既可跟不定式，又可跟动词ing作宾语，意义基本相同。 They continued reading/to read . 他们继续朗读。第21页/共37页 2动词love，like，hate等后可跟动词ing和不定式作宾语，但接动名词表示经常性的情况，接不定式表示具体的动作。 I hate walking in such a rainy day.(习惯) 我不喜欢在这样的雨天

14、里散步。 I hate to trouble you.(动作) 我真不愿麻烦你。 3一些动词后既可跟动词ing作宾语，又可跟不定式作宾语，但意义有很大差别。第22页/共37页第23页/共37页第24页/共37页 I remembered locking the door.(记着事情做了) 我记着锁门了。 When you leave the house，please remember to lock the door.(记着去做) 你离开家时，记着锁门。第25页/共37页 4在need，want，require，demand后用动词ing的主动形式表示被动(need/want/require/

15、demand doing need/want/require/demand to be done). The cottage needs repairing.The cottage needs to be repaired. 这所农舍需要修理。 The letter demands answering at once. The letter demands to be answered at once. 需要立刻回复这封信。第26页/共37页 (二)动词ing形式作宾语时，省掉介词的常见结构 spend.(in) doing花费做某事 have difficulty/trouble(in)do

16、ing.做有困难/麻烦 stop/prevent.(from) doing阻止做某事 waste time(in)doing浪费时间做某事 be busy(in) doing忙于做某事 have a good/hard time(in)doing做某事高兴/费了很大劲 *He is usually busy managing his shop. 他通常忙于经营商店。第27页/共37页 (三)动词ing的复合结构 1动词ing的复合结构作主语。 His being late again made his boss very angry. 他的又一次迟到令他的老板很生气。 Marys winnin

17、g the game made her parents proud of her. 玛丽赢得这场比赛让她的父母以她为傲。第28页/共37页 2动名词的复合结构作宾语。 He made an apology for his/him telling lies to the public. 他因向公众撒谎而道歉。 Outside the classroom，we could hear the noise of the desks being opened and closed. 在教室外，我们能够听到课桌被打开及关闭的声音。第29页/共37页第30页/共37页 The chairman of the meeting was angry at Johns/John being absent from the meeting. 会议主席因约翰的缺席而生气。第31页/共37页 Jerrys not arriving on time made people present angry. 杰里未能按时到达令在场的人很生气。 Not knowing what has happened to his daughter makes the father upset. 不知道女儿发生了什么使得这位父亲很是不安。第32页/共37页 英汉互译 Dont forget