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1、时态( 8 个):一般现在时 : 经常或习惯性的动作结构 : 肯定句 主语 +be (am, is, are ) + 其他 eg: I am Chinese.否定句 主语 +be not + 其他 eg: I am not a boy.疑问句Be+主语+其他eg: Are you a girl?或: 肯定句 主语+动原 +其他 ( 三单作主语动词要变形 )eg: I (He) often get (gets) up early.否定句 主语 +don't+ 动原 +其他 ( 三单作主语 don't 变 doesn't)eg: I (She) don 't (do

2、esn 't) like him.疑问句DO+主语+动原+其他(三单作主语do变does)eg: Do (Does) you (she) like playing baseball?关键词 : sometimes=at times 有时, often 经常 , usually 通常, always 总是,every day 每天, on Sunday afternoon 在周日下午 , five days a week 一周五天 , three times a month 一个月三次 ,现在进行时 : 正在发生的动作结构:肯定句 主语+be+动词的现在分词(ing)+其他eg: I a

3、m reading now.否定句 主语+be not+ 动词的现在分词(ing)+ 其他 eg: I am not working.疑问句 Be + 主语 +动词的现在分词 +其他 eg: Are you sleeping?关键词 :now 现在 , at the moment 此刻, look, listen, keep quiet等提示语 .一般将来时 : 将要发生的动作结构 : 肯定句 主语 +will+ 动词原型 +其他 eg: I will call you later.否定句 主语 +will not + 动词原型 +其他 eg: I will not go to the par

4、k.疑问句 Will + 主语 +动词原型 +其他 Will you go shopping with her?(will 可改为 be going to , 当主语是第一人称时 will 可用 shall)关键词:tomorrow, next year 明年,tonight 今晚,this year 今年,at the end of this term这学期期末,from now on从现在开始,soon 一会儿 马上,later 后稍后,in three days三天之内,in the future 未来,一般过去时 : 过去发生的动作 强调时间句子结构 : 肯定句 主语 +be(was,

5、were)+ 其他 eg: I was born on July.1st, 2000.否定句 主语 +be not+ 其他 eg: I was not born in 1999.疑问句 Be+ 主语 + 其他 eg: Were you born in January?或:肯定句 主语+动词的过去式 (ed)+ 其他 Lily went shopping yesterday.否定句 主语 +did not+ 动原 +其他 eg: He did not go to school today.疑问句 Did+ 主语 +动原 +其他 eg:Did she pass the test?关键词:yeste

6、rday 昨天,last week 上周,last year 去年, 一段时间 +ago 女口 ten years ago 十年前 five hours ago 五小时前,in + 年/月, on+具体日期.Just now=a moment ago 刚才,in the old days 从前,long ago 很久以前.过去进行时 : 过去正在发生的动作结构:肯定句 主语+was/were+动词的现在分词+其他eg: I was doing my homework at 8 o'clock yesterday evening.否定句 主语 +was/were not + 动词的现在分

7、词 +其他They were not staying at home at this moment last Sunday.疑问句 Was/Were + 主语 + 动词的现在分词 +其他Were you sleeping when I called you last night?关键词 : 具体时间如 :at ten o'clock yesterday morning, at this moment last Sunday 上周日的这个时 候.现在完成时 : 过去发生的动作对现在造成的影响 强调动作或其产生的结果 结构 : 肯定句 主语 +have/has+ 动词的过去分词 +其他 (

8、 三单变成 has) eg: This year alone, we've already planted ten thousand trees 否定句 主语 +have/has not+ 动词的过去分词 +其他 eg: He has not arrived at home yet.疑问句 Have/Has + 主语 +动词的过去分词 +其他eg: Have you been to China?关键词 :already 已经 , yet 还 , just 刚刚 , ever 曾经 , never 从不 ,so far 目前 , for + 一段时间 ,since+ 过去的具体时间, t

9、his year alone 今年以来 ,these five years alone 这五年以来 ",in the last ten years 在过去的十年中 ,过去将来时 : 结构 : 肯定句 主语 + would+ 动原 +其他 eg: I didn't know if he would come. 否定句 主语 + would not + 动原 +其他 eg: They were not going to go hiking unless they finished their homework. 疑问句 Would+ 主语 +动词原型 +其他 (would you

10、 like 是词组 一个固定搭配 一般用表示礼貌的问 ) eg: Would you like to have a dinner with me?(would 可改为 was/were going to , 主语第一人称时 would 也可以用 should)过去完成时 :结构 : 肯定句 主语 +had + 动词的过去分词 +其他 eg: Mr. Smith died yesterday. He had been a good friend of mine. 否定句 主语 +had not + 动词的过去分词 +其他 eg: He said he has not been to Americ

11、a.疑问句Had+主语+动词的过去分词+其他eg: Had he completed his homework by the time you got there. 关键词 : 句子中的两个动作都发生在过去一、一般现在时: 概念:经常、反复发生的动作或行为及现在的某种状况。 时间状语: often ,usually ,always,sometimes,every week (day,year,month),once a week ,on Sundays , etc 基本结构:be动词;行为动词don't ,如主语为否定形式:am /is /are + not;此时态的谓语动词若为行为动

12、词,则在其前加 第三人称单数,则用 doesn't ,同时还原行为动词。一般疑问句:把be动词放于句首;用助动词 do提问,如主语为第三人称单数,则用does,同时,还原行为动词。二、一般过去时: 概念:过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为。时间状语: ago, yesterday , the day before yesterday , last week(year , night , month), in 1989, just now , at the age of 5, one day , long long ago , once upon a time

13、 , etc 基本结构:be动词;行为动词否定形式: was/were + not;在行为动词前加 didn't ,同时还原行为动词。一般疑问句:was或were放在句首;用助动词 do的过去式did提问,同时还原行为动词。三、现在进行时:概念:表示现阶段或说话时正在进行的动作及行为。时间状语: now, at this time , these days , etc 基本结构: amis are doing否定形式: amis are not doing一般疑问句:把 be 动词放在句首 四、过去进行时:概念:表示过去某段时间或某一时刻正在发生或进行的行为或动作。时间状语:at th

14、is time yesterday,at that time或以 when引导的谓语动词是一般过去时的时间状语等。 基本结构:was/were doing否定形式:was/were not doing一般疑问句:把 was或were放在句首五、现在完成时:概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态。时间状语:recently , lately , since , for , in the past few years, etc基本结构:have/ has done否定形式:have/ has not done一般疑问句: havehas 放于

15、句首六、过去完成时:概念:以过去某一时间为标准,在此以前发生的动作或行为,或在过去某动作之前完成的行为,即“过去 的过去”。时间状语: before , by the end of last year(term, month), etc 基本结构: had done否定形式: had not done一般疑问句: had 放于句首 七、一般将来时: 概念:表示将要发生的动作或存在的状态及打算、计划或准备做某事。时间状语: tomorrow , next day(week, month, year), soon, in a few minutes , by, the day after tomo

16、rrow , etc 基本结构: ami/ is /are /going to + do; will /shall + do否定形式: am/ is /are + not + going to + do; will /shall + not + do 一般疑问句:be放于句首; will / shall提到句首八、过去将来时:概念:立足于过去某一时刻,从过去看将来,常用于宾语从句中。 时间状语: the next day ( morning ,year ),the following month(week), etc 基本结构: was/ were/going to+ do ; ®

17、would /should + do否定形式: was/ were/not + going to+do; ® would /should + not + do一般疑问句: was或were放于句首; would / should提到句首一般现在时讲解与练习1. 表示事物或人物的特征、状态。如:The sky is blue.天空是蓝色的。2. 表示经常性或习惯性的动作。如:I get up at six every day.我每天六点起床。3. 表示客观现实。如:The earth goes around the sun地球绕着太阳转。构成:1. be动词:主语+be(am,is,a

18、re)+其它。如:I am a boy.我是一个男孩。2行为动词:主语+行为动词 什其它)。如: We study English.我们学习英语。当主语为第三人称单数(he, she,it时,要在动词后加"-s"或"-es"或变“y为“ies如:Mary likes Chinese玛丽喜欢汉语。Miss Gu teaches us English.顾老师教我们英语。 She studies Chinese every day.她每天学习语文。否定句、一般疑问句、特殊疑问句:1. be动词的变化。否定句:主语+ be + not +其它。女口: He is

19、 not a worker.他不是工人。一般疑问句: Be +主语+其它。如: -Are you a student? -Yes. I am. / No, I'mnot.特殊疑问句:疑问词 +一般疑问句。如:Where is my bike?2. 行为动词的变化。否定句:主语+ don' tdoesn ' )t+动词原形 什其它)。如:I don' like bread.当主语为第三人称单数时,要用doesn'构成否定句。如:He doesn' often play.一般疑问句: Do( Does ) +主语+动词原形 +其它。如: - Do y

20、ou often play football?- Yes, I do. / No, I don' t.当主语为第三人称单数时,要用does构成一般疑问句。如:-Does she go to work by bike?- Yes, she does. / No, shedoesn' t. 特殊疑问句:疑问词 +一般疑问句。如:How does your father go to work?一般现在时的动词形式 一般现在时主要由动词原形表示,但第三人称单数后的动词词尾有所变化。第三人称单数动词词尾的变化 有几种形式: 一般情况 加 -s reads, says, takes以 ch

21、, sh, s, x,或 o 结尾的词 力加-es teaches, washes, goes, misses, mixes 以辅音字母加 y 结尾的词 变 y 为 i 再加 -es studies, cries, carries一般现在时: 表示站在 “现在”这个时段叙述一般情况下发生的事情或状态 , 经常性或习惯性的动作。 用法:(1)Be型句子(即句子里动词为 am或is或are)以be为助动词,注意主谓搭配例: He is a teacher.t Is he a teacher? Yes, he is. / No, heisn '弋 What is his job?I am /

22、 You are / He is / She is / It is / We are / You are / They are(2)行为动词句子( do 型)I主语为第一,第二人称及复数,助动词为do (don ' t).My parents like watching TV in the evening. t Do your parents like watching TV in the evening? Yes, they do. / No, they don' tt. What do they do in the evening?n若人称为第三人称单数,助动词为does

23、(doesn' t)肯定句(仅肯定句)时动词要有变化,否定句与疑问句动词不变(基本同名词复数变化)与上面的一组句子比较。My father likes watching TV. t Does your father like watch TV ? Yes, he does. / No, he doesn' tt. What does y our father do in the evening?一般现在时动词口诀:肯定句:单数开头 S形式,复数,你我用原形 否定句:单数开头doesn'加动词,复数、你我 don'加动词 一般疑问句:单数 Doesxx加动词,复数

24、、你我 Dox x加动词2. 第三人称单数的动词变化规则(1) 多数动词直接加 s: runs gets likes collets takes plays climbs(2) 结尾是 s, x, sh, ch, o,前为辅音字母 , 结尾加I es : watches teaches goes does washes crosses mixe s(3) 动词末尾y前为辅音:将y改i加es: study studies fly Tlies y前若为元音则直接加 s: buys says小学现在进行时讲解 一、现在进行时的定义,构成,标志性词语 定义:表示现在或现阶段正在进行或发 生的动作或存在

25、的状态。 构成:由 be(am/is/are) +动词 ing 形式构成标志性词语标志性词语标志性词语标志性词语:1.现在进行时现在进行时现在进行时现在进行时. . . .通常用通常用通常用通常用“ now”eg: I am doing my homework now 2 现在进行时 通常用 “look” eg: Look! My mother is running!eg:3.现在进行时 通常用 “listen”eg: Listen! They are reading4. 现在进行时 通常用“ at the (this) moment”eg: At the (this) moment, he

26、is only weeping.eg:二、动词现在分词的构成规则 1 一般情况下直接加 ing thinkthinkingsleep-sleepingstudystudying speakspeakingsaysaying carrycarryingwakewaking 2 以不发音的字母 e 结尾的单词结尾的单词 ,去掉字母 e,再力口 ing comecomingmakemakingleaveleavinghavehavingtaketaking 3 以重读闭音节 (重读闭音节即两个辅音中间夹一个元音并且重读的音节)结尾,呈现“辅,元,辅”结构的动词,双写末尾的辅音字母,再加 ingsto

27、pstopping sitsittingrunrunning forgetforgetting beginbeginning 这类词还有: bigin, cut, get,hit, run, set, sit, spit, stop, swim, beg, drop, fit, nod, dig,forget, regret, rid,等。 4 以 ie 结尾的动词,把 ie 改为 y,再加 ing diedying lielying三、现在进行时的用法 ( 1 )用来表示说话时正在进行或者发生的动作, 例如:Mother is cooking in the kitchen. 妈妈在厨房里煮饭

28、。What are you looking at? are you looking at? 你在看什么?( 2)用来表示现阶段正在进行的动作(但说话时不一定在进行),例如:Is she writing a novel? 她正在写一本小说吗?( 3)用来表示即将发生的动作,一般是指按计划或者安排好要发生的动作。适用于这种情况的动词主要有:go,come,leave,start,arrive等。例如:I'm going home in half an hour. 我一个半小时内要回家。The train is arriving soon.火车很快就要到达了。四、现在进行时的句型变化肯定式结

29、构:主语+be+动词-ing 形式 +其他例如:We are running now.否定式结构:主语 +be+not+ 动词-ing 形式 + 其他.例如:They aren' t doingtheir homework. 一般疑问句式结构:Be+主语+动词-ing形式+其他?例如:Is she having English lesson?回答:肯定:Yes, she is.否定:No, she isn' t. 特殊疑问句式结构:疑问词 +be+主语+其 他?例如 :What is he doing now? 回答: He is swimming.1 Be 动词的一般过去时态

30、 . 在没有实义动词的句子中使用 beam is 的过去式为 was; are 的过去式为 were.+was (were) + 表语I was late yesterday.天我迟至U了。+was (were) +not+ 表语We weren't late yesterday.【注意】was werenot 构成否定句。Iwason the Interntwhen you called me.I was not/wasn'ton theInternt when you called me .Was (Were) +主语+表语如Were you ill yesterday?Y

31、es,I was.否定No,I wasn't.+was (were) +主语+表语When were you born?2 实义动词的一般过去时态肯定句要使用动词的过do 和 does 的过去式 did.+动词过去式 +宾语+didn't +动词原I went home at nine o'clock yesterday.形+宾语I didn't go home yesterday.Did +主语 +动词原形 +宾语Didyou go home yesterday?Yes,I did.No,I didn't.3shaII shouldwiII wouId

32、cancouIdmay mightmustmusthave tohad to助动词和情态动词的过I had to do myhomework yesterday.+动词过去式 +宾语 +其它I had a wordwith Julia this morning.yesterday 昨天、 the dayy 前几天 、 last night2before yesterday 前天、 two days ago, 两天前,、 the other da(week 、 Sunday 、this morning/afternoon/evening 、one day 、once upon a time 很久

33、以前、 in the old you have a party the other daysoldier. 雷锋是个好战士。 注意+ago 、 e of 8 在 8 岁的时候、 ago 很久以前 Did as a goodweekend、month、winter 、 year、 just now 刚刚、ago 很久以前 此刻、 at the ag days 过去的日子里、 long long Lei Feng w (3centuryat the moment表示。 The boy opened his eyes for a moment looked at the captain and th

34、en died. 那男孩4与 always never 等连用。 Mrs. Peter always carried an umbrella. 彼得太太过去老是带着一把伞。比较 Mrs. Peter always carries an umbrella. 彼得太太老是带着伞。Mrs. Peter is always carrying an umbrella. 彼得太太I never drank wine. 我以前从不喝酒。5 used to do He used to d rink alcohol. 他过去喝酒。 I used to take a walk in the morning. 我过

35、去是在早晨散步。6I didn''t know you were in Paris. 我不知道你在巴黎。But now I know you are here.实义动词过去时变化规律:一般情况下,在动词原形后直接加ed。(所谓的一般情况,就是除了以下 、 三种情况)如: wanted , played 。 以不发音的字母 e 结尾的动词,直接加 d。如: hoped , lived 。 重读闭音节单词需双写最后一个辅音字母,再加 ed 。如: stopped, shipped 。 以辅音字母+y结尾的动词变y为i,再加ed。如: studied , worried 。初中英语过

36、去进行时讲解及练习 (事情或动作。 was/were +doing (1 、过去进行时表示过去某段时间内持续进行的动作或者事情。 常用的时间状语 this morning, the whole morning, all day yesterday, from nine to ten last evening, when, while 1 We were watching TV from seven to nine last night. 昨天晚上七点到九点的时候我们在看电视。 2 What was he resear ching all day last Sunday? 3 My brothe

37、r fell while he was riding his bicycle and hurt himself.4 It was raining when they left the station. 他们离开车站的时候天正在下雨。 5 Whe n I got to the top of the mountain, the sun was shining. 2.What was she doing at nine o'clock yesterday?( 介词短语表示时间点 )When I saw him he was decorating his room. 当我看见他的时候他正在装饰

38、房间。 (when 从句 表示时间点 ) 3.While he was waiting for the bus, he was reading a newspaper. 他 边等车边看报。 (两个动作都是延续的 ) He was cleaning his car while I was cooking. 他擦车时 我在做饭。 ( 两个动作同时进行 ) 4 She asked him whether he was coming back for supper. 5 always,constantly,continually,fr equently His mother was always wo

39、rking like that. 他目前 总是那样工作。 6. agree, be, believe, belong, care, forget, hate, have(拥有),hear, know, like, love, mean, mind, notice, own, remember, seem, suppose, understand, want, wishI was knowing the answer.I knew the answer. 我知道答案。I wasn't understanding him.I didn't understand him. 我不明白他

40、的意思。1) Mary _ a dresswhen she cut her finger. A. made B. is making C. was making D. makes 答案 C. 割伤手指 when2) As she _ the newspaper, Granny _ asleep. A. read; was falling B. w as reading; fell C. was reading; was falling D. read;fell 答案 B. 句中的 as = when, while"当, 之时" 。 句意为 ""句中的 f

41、ell (fall 的过去时 )fall sick。1He went to Beijing the other day.a) would ,used to 与过去时 would 带频率时间 used to 表一贯性有规律的习惯They used to meet and would sometimes exchangeone or two words. He smoked a lot two years ago.b) Would 用于文中不用于Used towould 换用。Whenhe was a boy , he would often go there .She isn't wha

42、t she used to be. (今昔对比 )c) 表示状态时一般只用 used to Tom used to be fat /There used to stand a tree there. (状态 ) d) was (were) used to +ving.”He used to work at night . (“习惯”表经常 ) He was used to working at night. (习惯表适应 ) 此事件用一般过去时。He sat there and listened to the radio.(依此发生)和 want , wonder , hope 等刻正在发生

43、)How did you like the film? / Could you help me? B. 过去进行时What were you doing at 8:30 last night? (过去某时 打算 During that time he was going withus.(表示打算)always ,often usuallyHe was always Changing his mind. 2、过去进行时与一般过去时的区别1发生的动作 ,但过去进行时表示在过去某一特定的时间点或时间段正在进行的动作,而一般过去时表示在过:I was typing a letter last nigh

44、t.(可能没打完 ) I typed some letters last night.(已经打完 ) A. 过去进行时却表示动作在持续或未I was reading the book at that time. (“读”的片段) I read the book yesterday. () B、一般过去时表示只做一次动作She waved to me. 她朝我挥了挥手。It was raining all night.( 优先用 was raining ,rained) He was writing a letter the whole of afternoon. () when 和 while

45、的用法区别 when 是 at or during the time that,while 是 during the time thatwhen 引导的时间状语从句中的动词可以是终while从句中的动词必须是延续性动词。when说明从句的动作while 则强调主句的动作在从句动作的发生的过程中或主 从句两个动作同时发生。由 whenwhilea. When theWhile we were talking,teacher came in, we were talking.the teacher came in. b They were singing while we were dancing

46、.现在完成时讲解现在完成时是中学英语中十分重要的语法内容,是学好英语的重要一环 ,希望同学们努力学习。 我们应该把它的特点,含义和用法等弄清楚。下面就其特点,定义及其用法予以说明。一、现在完成时的含义:(一)、它是过去发生的或已经完成的动作对现在造成的影响或结果。理解: 1、表示过去发生的某一动作(该动作已经结束)对现在造成的影响或结果。例如:He has had his lunch.(强调结果,饱了)。又如: _-Have you done your homework?_-Y es, I have(. 强调对现在的影响, 其结果是作业已经完成了。 )2、表示过去已经开始,并持续到现在的动作或

47、状态,它往往与表示一段时间段"for +时间段",” since过去的时间点连用如: I have taught here for more than two years. We have lived in this street since 1987.(二)、特点:既涉及过去又联系现在, 动作是过去发生的, 其结果是现在存在的 例如: She has come. (她来了.)这句话说明两点:1)她是过去某一时候来的.2)她现在仍然在这里,而且主要是说她在这里,动词用了现在完成时表示现在还存在过去的某一动作的结果或影响,至于她是什么时候来的,是 十分钟以前还是一个小时以前,

48、并不是这句话所强调的情况.又例如 :She has gone. (她走了.)这句话说 明"走"的动作是发生在过去,而且对现在造成的影响是她不在这里了 ”但是,She went则只强调 走”这一动作发生在过去,至于现在她在不在这里就不得而知了,也不是强调的重点。(三)、如何理解 “对现在造成的影响或结果 ”?它包括这样几种情况: 看得见的, 看不见的, 肯定的, 否定的。例如: 1),He has cleaned the blackboard. 其结果:看得见 现在黑板是干净的。 2),He has studied French. 其结果:看不见 但现在他懂法语。3).He

49、hasn ' t cleaned the roo其结果:否定的现在房间不干净。 4).He has never learned English. 其结果:否定的 他现在仍然不懂英语。所以,不管是哪一种影响或结果,只有到目前还存在的情况下才能用现在完成时。一旦结果或影响 不复存在, 或者即便存在也不强调, 就不能用现在完成时, 而应用一般过去时, 这也正是两者的区别所在。 例如:He has cleaned the room.(他是在过去打扫了房间,房间现在仍干净。) He cleaned the room an hourago ,but it ' s dirty now他也是在

50、过去打扫 了房间,但现在又脏了,发生在过去的 打扫"这一动作与现在 无关。)注意: 一般过去时是说,过去发生的或已经结束或完成的动作,它和现在没有直接关系,或者即使 与现在有某种联系,但说话者并不强调与现在的这种关系,而只是指出:那个动作发生在过去某一时间; 而现在完成时却正是要强调过去的那个动作与现在的关系。二现在完成时结构:(一)、结构:主语+助动词has/have+动词的过去分词(注意:has只用于第三人称单数的情况。)(二)、动词过去分词的构成,这里只谈规则动词,既过去式与过去分词都是加-ed 的。有下面四种情况:1. 一般的也是绝大多数的动词是直接在后面加-ed,例如,pl

51、ayed2. 以e结尾的动词只加-d,例如,loved3. 以辅音字母+y结尾的,变y为i再加-ed4. 以一个辅音字母(r/w/y除外)结尾的重读闭音节,要双写这个辅音字母再加ed,例如,stopped , planned, preferred 等。(三),不规则动词的变化规则:这些不规则动词有下面一些规律可循, 希有助于同学们记忆。1. AAA 型: 既动词原形。过去式,过去分词三者同形。例如:let, set. hit .cut. put, shut .cost. hurt, read. spread2. AAB 型: 只有一个, beat-beat-beaten3. ABA 型 :既过

52、去式与过去分词不同,但过去分词与原形相同。如:run. come, become. overcome (克服)4. ABB 型: 既过去式与过去分词相同,而两者与原形不同。可分为下面六组:第一组: feel. keep. sleep weep sweep meet leave smell. deal spoil spill 它们都以 t 结尾 .第二组: spend lend send build 都是变 d 为 t第三组: lose get win shine dig hang 都是变其中的元音字母。第四组: bring buy fight think catch teach 都以 ught

53、 结尾,其中 catch, teach 以 aught 结尾。第五组:tell sell lay pay say都以“d”吉尾 第六组:无规律组,必须硬记 .find stand understand sit have make hold hear mean5. ABC 型 :既过去式,过去分词与动词原形三者各不相同。第一组:在过去式上加 -n(注:过去式都是以 “O辅音字母+e"结尾的,但rise除外)break-broke-brokenchoose-chose-chosenforget-forgot-forgotten( 双写 t)freeze-froze-frozenwake-

54、woke-wokenspeak-spoke-spokensteal-stole-stolen第二组 :在原形上加 -nsee-saw-seengive-gave-givendrive-drove-driventake-took-takendraw-drew-drawngrow-grew-grownknow-knew-knownthrow-threw-thrownblow-blew-blownshow-showed-shownmistake-mistook-mistaken rise-rose-risen第三组:在原形上加 -enwrite-wrote-written( 双写 t)eat-ate

55、-eatenfall-fell-fallenride-rode-ridden ( 双写d)hide-hid-hidden( 双写 d)be-was/were-been第四组:符合 i-a-u 的原则,并且发音规律相同。begin-began-begunring-rang-rungsing-sang-sungswim-swam-swumsink-sank-sunk(沉 )drink-drank-drunk第五组: bear-bore-bornwear-wore-worntear-tore-torn (流泪)第六组: lie-lay-lain( 躺 ) do-did-done go-went-go

56、ne fly-flew-flown 以上各部分希望同学们认真记,记准,记牢。三能和现在完成时连用的时间状语现在完成时属于现在时的范畴,当然不能和过去的时间状语,如 yesterday 等连用。能和现在完成时 连用的有下面几种情况:1. 和一些在时间上不够确定的时间副词或词组连用。例如:already、ever、yet 、not yet、just、just before 、before 及 twice例句: 1) He has already come .2).I haven 't finished my homeworekt.Y3).We have never seen such a

57、strange animal before .2. 和“for+寸间段"或“ since过去的时间点"连用。例如:1).1 have had (买)this book for a week .2.). They have lived there since 1983/they came to the city.3. 和从过去某一时刻延续到现在(包括现在在内)的一段时间状语连用。 例如:today , now , this morning ,this year,these days,in the past/last(过去的) fifty years.例句: 1).I haven 't seen hetrhis morning .2).What has happened t

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