高中英语外研版 (2019)必修 第三册Unit 3 The world of science教课内容ppt课件

这是一份高中英语外研版 (2019)必修 第三册Unit 3 The world of science教课内容ppt课件，共22页。PPT课件主要包含了过去完成时 ，被动 ，动宾 ，主动 ，主谓 ，he was ，would ，when ，had got ，that 等内容，欢迎下载使用。

一、读下列句子,完成题后练习1.By the time it ended,mre than 700 peple had been killed and 2,700 had been the late 1890s,he had mved t said he had been t Beijing travelled back t Canada after he had been buried in Texas!剖析:以上四个句子都使用了　　　　　(时态),其中,第一句和第四句为　　　　　语态,句子的主语是谓语动词动作的承受者,即有　　　　　关系;第二句和第三句为　　　　　语态,句子的主语是谓语动词动作的发出者,即有　　　　　关系。 
二、根据给出的直接引语,完成下列句子1.I’m busy.→He said that 　　　　　　　　　　busy. 2.I’ll d it after class.→He said that he 　　　　　d it after class. 3.D yu enjy reading?→He asked me 　　　　　　　　　　　　　　　reading. 4.When did yu get up this mrning?→He asked me 　　　　　I 　　　　　　　　　　up 　　　　　mrning. 
if/whether I enjye
三、用动词的适当形式填空1.Reprts said that at least six peple 　　　　　　　　　(kill). 2.We reminded them that the meeting 　　　　　　　　　(put)ff already. 3.By the time I arrived,the wrk 　　　　　　　　　(cmplete). 4.By the time he was eight,he　　　　　　　　　(teach)t play the pian. 5.He said that he 　　　　　　　　　(set)ff fr Jinan the next day. 
had been killed
had been put
had been cmpleted
had been taught
四、完成句子1.He said that his nvel 　　　　　　　　　　　　　　　(已经出版了). 2.The plice fund my handbag and,happily,nthing 　　　　　　　　　　　　　　　(被偷走). 3.The by tld his teacher that they 　　　　　　　　　　(参观了)the exhibitin the day befre. 4.She said her pen 　　　　　　　　　　　　　　　(丢了)three days befre. 
had been published
had been stlen
had visited
had been lst
1.She returned hme and fund all her furniture had been ruined by the fld.她回到家,发现她所有的家具都被洪水毁了。★考点:ruin vt.毁坏Her bright future was ruined by the accident.这次事故毁了她美好的未来。考点延伸阅读下列句子,体会黑体词的词性及含义①His carelessness led t his ruin.他的粗心导致了他的毁灭。词性:名词　含义:毁灭②We visited the ruins f the temple.我们参观了那个庙宇的遗迹。词性:名词　含义:废墟,遗迹
2.Grammar★考点一:过去完成时的被动语态They sn realised they had been cheated.他们很快便意识到他们被骗了。考点延伸1)阅读下列句子,体会过去完成时的用法①When I gt t the statin,the train had left.当我到火车站时,火车已经开走了。②We had learnt fifteen lessns by last week.到上周为止,我们已经学了15课。③He had stayed here fr tw days befre he left.他在这里待了两天后离开了。
④We had hardly started when it began t rain.=We had n sner started than it began t rain.我们刚出发,就开始下雨。⑤I had hped t see yu.我本希望来看你。
归纳:①过去完成时表示动作或状态在过去某个时间或动作之前发生,即“过去的过去”。②“by+过去时间点”常与过去完成时连用。③当句中由befre或after引导时间状语从句时,如果后发生的动作用一般过去时,则先发生的动作可用过去完成时,也可用一般过去时。④常用句型“”或“n ”意为“刚……就……”,主句中用过去完成时,when/than从句中用一般过去时。⑤表示计划、打算或希望的动词,如:expect,hpe,mean,suppse,think,want,plan,intend等的过去完成时表示过去未实现的计划、打算等。
2)阅读下列句子,体会被动语态的各种时态①Visitrs are nt allwed t tuch the exhibits.禁止参观者触摸展品。时态:一般现在时　形式:am/is/are+过去分词②All the preparatins fr the task have been cmpleted.那项任务的准备工作已经完成。时态:现在完成时　形式:have/has been+过去分词 ③A new cinema is being built here.这里正在建造一个新影院。时态:现在进行时　形式:am/is/are+being+过去分词
④I was given ten minutes t decide whether I shuld accept the ffer.我被给予10分钟来决定是否接受所提供的帮助。时态:一般过去时　形式:was/were+过去分词⑤By the end f last year,anther new stadium had been built in Beijing.到去年年底,北京已经建成了另一座新的体育馆。时态:过去完成时　形式:had been+过去分词 ⑥A meeting was being held when I arrived there.我到那里时,正在开会。时态:过去进行时　形式:was/were+being+过去分词⑦Hundreds f jbs will be lst if the factry clses.如果工厂关门,将失去数百工作岗位。时态:一般将来时　形式:will be+过去分词 
★考点二:间接引语She said,“I have lst a pen.”→She said she had lst a pen.她说她丢了一支钢笔。考点延伸1)阅读下列句子,体会时态的变化①The girl said,“I am very happy nw.”→The girl said that she was very happy then.时态变化:一般现在时变成一般过去时②Tm said,“We are listening t the pp music.” →Tm said that they were listening t the pp music.时态变化:现在进行时变成过去进行时
③Mther asked,“Have yu finished yur hmewrk befre yu watch TV?” →Mther asked me whether I had finished my hmewrk befre I watched TV.时态变化:现在完成时变成过去完成时④“Why did she refuse t cme here?” the teacher asked.→The teacher asked why she had refused t g there.时态变化:一般过去时变成过去完成时⑤He said,“I will g and get it.”→He said that he wuld g and get it.时态变化:一般将来时变成过去将来时
⑥Mther asked me,“Had yu finished yur task befre yu returned hme?” →Mther asked me whether I had finished my task befre I returned hme.Tm said,“We were having a ftball match this time yesterday.” →Tm said that they were having a ftball match that time the day befre.时态变化:过去完成时和过去进行时不变⑦He said,“I went t cllege in 1994.” →He tld us that he went t cllege in 1994.时态变化:当直接引语部分带有具体的过去时间状语时,一般过去时不变
⑧Our teacher said t us,“Light travels faster than sund.” →Our teacher tld us that light travels faster than sund.时态变化:当直接引语是客观真理或自然现象或格言、谚语时,时态不变
2)阅读下列句子,体会代词的变化①She said,“My brther wants t g with me.” →She said her brther wanted t g with her.②“Yu shuld be mre careful next time,” my father tld me.→My father tld me that I shuld be mre careful the next time.③She said t her sn,“I’ll check yur hmewrk tnight.” →She tld her sn that she wuld check his hmewrk that night.④He said,“These bks are mine.” →He said thse bks were his.
3)阅读下列句子,体会黑体词部分的变化①She said,“I wn’t cme here any mre.”→She said that she wuldn’t g there any mre.②He said,“I’m ut nw.” →He said that he was ut then.③He said,“I want t leave tday.” →He said that he wanted t leave that day.④He said,“She left yesterday.” →He said that she had left the day befre.⑤She said,“I’ll tell yu tmrrw.” →She said that she wuld tell me the next day.
4)阅读下列句子,体会句式的变化①He said,“Yu are yunger than I.” →He said (that)I was yunger than him.②She said,“D yu ften cme here t read newspapers?”→She asked me if (或whether)I ften went there t read newspapers.③I asked him,“Will yu stay at hme r g t the cinema tnight?”→I asked him whether he wuld stay at hme r g t the cinema that night.④He asked,“Where d yu live?”→He asked me where I lived.⑤The teacher said t the by,“Open the windw.”→The teacher tld the by t pen the windw.