重点讲解练习-第7讲 动词的时态(PPT48张)(ppt课件)-2023新外研版九年级下册《英语》.pptx
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1、step I:Lead-in 必备词组 必备句型Step II:language focuses 考点Teaching procedures考点专练 中考链接必备词组1.in a word简言之,总之2.in danger处在危险状态3.in fact事实上,实际上4.in front of在前面5.in need of需要,缺少6.in order按顺序7.in order that为了8.in order to为了9.in other words换句话说10.in public当众;公开11.in surprise吃惊,惊讶12.in the end最后,终于13.in the futur
2、e今后;将来14.in time及时,来得及15.instead of代替,而不是16.join in参加,加入17.just now现在,刚才.18.keep doing sth.继续做某事19.keep in touch with与保持联系20.keep off勿踏;勿踩必备句型1.had better(not)do 最好(不)做1)你最好呆在家里。Youd better stay at home.2)你最好戒烟。Youd better give up smoking.2.help sb.do/with sth.帮助做/在某方面帮助1)我经常帮助妈妈做家务。I often help my
3、mum do the housework.2)他在数学方面给我很大的帮助。He helped me a lot with math.必备句型3.I dont think that(否定前置)1)我认为他不对。I dont think he is right.2)她那时候觉得我不可能学好数学。She didnt think we could learn math well at that time.4.Would you like to?Id like to 你愿意么?我愿意你愿意和我去钓鱼么?Would you like to go fishing with me?肯定回答:Yes(Of co
4、urse),Id love to.否定回答:Sorry,but Ive got something else to do.必备句型5.It takes sb.some time to do sth.做 sth.花费sb.多少时间Joan花一小时才能到学校。It takes Joan an hour to go to school.随时练:随时练:spend,take,cost,pay的区别 My father _ 100 yuan on books each month.My new shirt _ me 120 yuan.We need to have more taxes to _ for
5、 everything.It _ him two hours to go to school when he was young and lived in the mountains.The retired teacher _ a lot of time teaching us English.考点考点1 一般现在时:(1)句型结构 主+be(am/is/are)+其他You are a good worker.You are not a good worker.(否定句,在is,am,are 后加not)Are you a good worker?(一般疑问句,把is,am,are 提句首)
6、Yes,I am./No,I am not.(回答)主+do/does+其他He usually goes to school at seven.He usually doesnt go to school at seven.(否定句,第三人称单数在动词前+doesnt;其他人称+dont)Does he usually go to school at seven?(一般疑问句,第三人称单数在句首+Does;其他人称+Do)Yes,he does./No,he doesnt.(回答)考点(2)用法:表动作经常发生或现在存在的状态。We usually have sports after sch
7、ool in the afternoon.表事实或客观真理。Two and two is four.The light travels faster than the sound.(3)常见的标志词。always,usually,often,how often,sometimes,every day,once a week,seldom 等。(4)难点:.在时间或条件状语从句中用一般现在时表将来。这方面的标志词有until,as soon as,when,if,before,after等。表客观真理时,在宾语从句中,不管主句为何时态,从句用一般现在时。He said that two and
8、three is five.The teacher told us the earth goes around the sun.考点(1)句型结构 主+be(was/were)+其他Lin Tao was in the library a moment ago.Lin Tao wasnt in the library a moment ago.(否定句,在was,were 后加not)Was Lin Tao in the library a moment ago?(一般疑问句,把was,were 提句首)Yes,he was./No,he wasnt.(回答)考点2:一般过去时考点.主+did
9、+其他We went to the park last Sunday.We didnt go to the park last Sunday.(否定句,在实义动词前+didnt)Did you go to the park last Sunday?(一般疑问句,在句首+Did)Yes,we did./No,we didnt.(回答)考点(2).用法:表过去某时发生的动作或存在的状态。I had a good time in Hainan last month.(3).常见的时间标志词:yesterday,two days ago,last week,in 1980,just now,the o
10、ther day(前几天)等。考点考点3:一般将来时。(1).句型结构:will/shall(第一人称)+动词原形/be going to+动词原形。They will fly to London tomorrow.They wont fly to London tomorrow.(否定句,在will,shall后+not)Will they fly to London tomorrow?(一般疑问句,把will,shall提句首)Yes,they will./No,they wont.(回答)He is going to visit me next week.He isnt going to
11、 visit me next week.(否定句,在be后+not)Is he going to visit me next week?(一般疑问句,把be提句首)Yes,he is./No,he isnt.考点(2).用法:表将要发生的动作或状态。Look at the black clouds.It is going to rain.(3).常见的时间标志词:tomorrow,in five days,next week,this evening,soon,from now on,in the future等。难点:表示往来运动的某些短暂性动词,可用现在进行时表示将来时。这类动词有:arr
12、ive,come,go,leave,fly,move等。They are arriving at this village in five hours.他们将5小时后到达这个村子。He is coming to see me next week.他下星期将要来看我。考点考点4.现在进行时(1).句型结构:is/am/are+doingMen are fighting against pollution all the time.Men arent fighting against pollution all the time.(否定句,在is,am,are 后+not)Are men figh
13、ting against pollution all the time?(一般疑问句,将is,am,are 提到句首)Yes,they are./No,they arent.(回答)(2).用法:1).表示说话时动作正在进行。We are waiting for the bus now.2).表示现阶段进行的动作,但说话时动作不一定正在进行。They are building a bridge these days.(3).常见的时间标志词:now,at present,these days,look,listen,all the time,at the moment,be quiet等。考点
14、(1).句型结构:was/were+doingIt was snowing at this time yesterday.It wasnt snowing at this time yesterday.(否定句,在was,were 后+not)Was it snowing at this time yesterday?(一般疑问句,将was,were 提到句首)Yes,it was./No,it wasnt.(回答)(2).用法:1).表示过去的某个时间动作正在进行。We were playing cards at that time.2).表示过去某个动作发生时,另一个动作正在发生。When
15、 I came in,my father was watching TV.考点5.过去进行时(3).常见的时间标志词:then,at that time,at this time yesterday,when,while等考点考点6 现在完成时:(1)句型结构:have/has+doneHe has already finished his homework.He hasnt finished his homework yet.(否定句,在has,have后+not)Has he finished his homework yet?(一般疑问句,将has,have提到句首)Yes,he has
16、./No,he hasnt.(回答)(2)用法:1).过去发生的动作对现在造成影响。I have closed the door.(门现在是关的)2).过去已经开始,持续到现在的动作或状态。We have lived here for two years.(过去住到现在)(3)常见的标志词:already,yet,ever,never,just,before,in the past(last)few days,so far,twice,recently,for+时间段,since+时间点,How long等等考点(4).难点.现在完成时可和疑问词where,why,how 连用,但不能和whe
17、n连用。故现在完成时对时间的提问不用when,只用how long。Where have you been?Why have you turned off the radio?When have you come back?()He has been in China for 4 years.(提问)When()/How long()has he been in China?.have been to(去了某地又回来)/have gone to(去了没回来)/have been in(去了并在那里待下去)I have been to Beijing twice.Where is Tom?He
18、has gone to HK.Lucy has been in this school for two years.难点A.若没有时间状语“for+时间段,since+时间点,How long”时,短暂性和持续性动词都可用于现在完成时。如:I have bought(短暂)a new computer.()He has already lived(持续)in the small village.()B.若有时间状语“for+时间段,since+时间点,How long”时,要用持续性动词或短暂性动词的否定。如:They have stayed(持续)in the village for 10
19、years.I have taught(持续)English at this school since 5 years ago.You havent received(短暂)her letter for 2 weeks.We havent left(短暂)China since 20 years ago.短暂性动词和持续性动词的现在完成时难点C.短暂性动词的肯定不能与“for+时间段,since+时间点”连用,若要和他们连用则要将短暂性动词变为相对应的动词。如:I have come here for 3 years.()I have been here for 3 years.()现举例说明
20、这类动词的变化:下划线的词是错的,括号里的词是对的。borrow/lend kept She has borrowed(kept)the magazine since two weeks ago.catch had Kate has caught(had)a cold for one day.buy had Ive bought(had)this radio for 3 years.put on worn He has put on(worn)the new coat for a week.leave/gobeen away They have left(been away)for one y
21、ear.难点start/begin been on The film has begun(been on)for 8 minutes.get up been up He has gone up(been up)more than two hours.move been out(of)Jims family have moved(been out of)here for over 2 years.finish been over The football match has finished(been over)for two hours.open been open The factory h
22、as opened(been open)since 1990.close been closed The factory has closed(been closed)for 2 months.die been dead That old man has died(been dead)for three years.join been in/been a member(of)Her father has joined(been in)the Party for ten e/become/arrivebeen(in)They have come to(been in)this school si
23、nce 1990.考点.与现在完成时有关的几种句型转换。如:“我来广东有4年了”可用以下句型表示:I came to Guangdong 4 years ago.I have been in Guangdong for 4 years.Its 4 years since I came to Guangdong Four years has passed since I came to Guangdong.考点(5)一般过去时与现在完成时的区别 标志词不同(具体看两种时态标志词)如:I went to cinema two days ago.(一般过去时标志词).He has been away
24、 since ten days ago.(现在完成时的标志词)一般过去时表示动作发生在过去,与现在无关。而现在完成时表示动作发生在过去,对现在造成影响。I saw the film yesterday.(我昨天看过电影,现在看不看不知道)I have seen the film before.I wont see it again.(过去看过电影,对现在有影响,不想再看了)考点考点七、过去完成时表示过去的过去,不能单独使用。结构:had doneWe had built the school by the end of last year.She said that she had been
25、to Beijing once.考点专练:()1.One morning while I _ along the street,I _ an old man crying.A.am walking,heardB.walked,heard C.was walking,heardD.walk,hear()2.The stranger told us his name after we _ him twice.A.asked B.have askedC.were asking D.will ask()3.Ms.Smith _ in New York in the spring of 1998.A.h
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