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1、第 - 1 - 页 共 18 页初中英语各种时态基本用法介绍一般现在时 的功能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。一般现在时的构成1. be 动词:主语 +be(am,is,are)+其它。如:I am a boy. 我是一个男孩。2.行为动词:主语+行为动词 (+其它 )。如:We study English.我们学习英语。当主语为第三人称单数(he
2、, she,it) 时,要在动词后加 -s 或-es 。 如:Mary likes Chinese.玛丽喜欢汉语。一般现在时的变化1. be 动词的变化。否定句:主语 + be + not + 其它。如: He is 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, Im not. 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 + dont( doesnt ) +动词原形 (+其它 )。如:I dont like bread. 当
3、主语为第三人称单数时,要用doesnt 构成否定句。如:He doesnt often play. 一般疑问句: Do( Does ) + 主语 +动词原形 +其它。如:- Do you often play football?- Yes, I do. / No, I dont. 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, she doesnt. 特殊疑问句:疑问词+一般疑问句。如:How does your father go to work? 动词 +s 的变化规则精选学
4、习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页,共 18 页第 - 2 - 页 共 18 页1一般情况下,直接加-s,如: cook-cooks, milk-milks 2 以 s. x. sh. ch. o结尾,加-es , 如: guess-guesses, wash-washes, watch-watches, go-goes 3以 “ 辅音字母 +y” 结尾,变 y 为 i, 再加 -es ,如: study-studies 现在进行时1现在进行时表示现在正在进行或发生的动作,也可表示当前一段时间内的活动或现阶段正在进行的动作。2现在进行
5、时的肯定句基本结构为be+ 动词 ing. 3现在进行时的否定句在be 后加 not 。4现在进行时的一般疑问句把be 动词调到句首。5现在进行时的特殊疑问的基本结构为:疑问词+ be + 主语+ 动词 ing? 但疑问词当主语时其结构为:疑问词 + be + 动词 ing? 动词加 ing 的变化规则1一般情况下,直接加ing ,如: cook-cooking 2以不发音的e 结尾,去e 加 ing,如: make-making, taste-tasting 3 如果末尾是一个元音字母和一个辅音字母,双写末尾的辅音字母, 再加 ing, 如: run-running, stop-stoppi
6、ng 一般过去时1一般过去时表示过去某个时间发生的动作或存在的状态,常和表示过去的时间状语连用。一般过去时也表示过去经常或反复发生的动作感谢。2 Be 动词在一般过去时中的变化:主+were/was + 其它成分am 和 is 在一般过去时中变为was 。 (was not=wasn t)are 在一般过去时中变为were 。 (were not=weren t)带有 was 或 were 的句子,其否定、疑问的变化和is, am, are一样,即否定句在was 或were 后加 not ,一般疑问句把was 或 were 调到句首。3句中没有be 动词的一般过去时的句子主+过去式+其它成分否
7、定句: didn t +动词原形,如:Jim didn t go home yesterday. 一般疑问句: 在句首加did,句子中的动词过去式变回原形。如:Did Jim go home yesterday? 特殊疑问句:疑问词+did+ 主语 +动词原形?如:What did Jim do yesterday? 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页,共 18 页第 - 3 - 页 共 18 页疑问词当主语时:疑问词+动词过去式?如:Who went to home yesterday? 动词过去式变化规则:1一般在动词末尾加
8、-ed,如: pull-pulled, cook-cooked 2结尾是e 加 d,如: taste-tasted 3末尾只有一个元音字母和一个辅音字母的重读闭音节,应双写末尾的辅音字母,再加 -ed,如: stop-stopped 4以 “ 辅音字母 +y” 结尾的,变y 为 i, 再加 -ed,如: study-studied 5不规则动词过去式:am, is-was, are-were, do-did, see-saw, say-said, give-gave, get-got, go-went, come-came, have-had, eat-ate, take-took, run-
9、ran, sing-sang, put-put, make-made, read-read, write-wrote, draw-drew, drink-drank, fly-flew, ride-rode, speak-spoke, sweep-swept, swim-swam, sit-sat 过去进行时态精讲主+were(was)+ 现在分词+其它成分一、概念和用法: 1) 概念:表示过去某时正在进行的状态或动作。2) 过去进行时的主要用法是描述一件事发生的背景;一个长动作发生的时候,另一个短动作发生。3) 常用的时间状语this morning, the whole morning,
10、all day yesterday, from nine to ten last evening, when, while例如: 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。What was he researching all day last Sunday? 上周日他一整天都在研究什么?My brother fell while he was riding his bicycle and hurt himself. 我哥哥骑自行车的时候从车上摔下来,受伤了。It was raining when
11、 they left the station. 他们离开车站的时候天正在下雨。When I got to the top of the mountain, the sun was shining. 当我到达山顶的时候,阳光灿烂。二、 过去进行时可以表示在过去某个时间点发生的事情。时间点可以用介词短语、副词或从句来表示。如:精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 3 页,共 18 页第 - 4 - 页 共 18 页What was she doing at nine oclock yesterday? 昨天晚上九点她在做什么?(介词短语表示时
12、间点 ) When I saw him he was decorating his room. 当我看见他的时候他正在装饰房间。(when 从句表示时间点) 三、 在复合句中, 如果主要动作和背景动作都是延续的或同时发生的,那么主从句的动词都可用过去进行时。例如: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) 四、 通常不能用于过去进行时的动词主要有:a
13、gree, be, believe, belong, care, forget, hate, have( 拥有 ), hear, know, like, love, mean, mind, notice, own, remember, seem, suppose, understand, want, wish等。例如:误: I was knowing the answer. 正: I knew the answer. 我知道答案。误: I wasnt understanding him. 正: I didnt understand him. 我不明白他的意思。五、典型例题1) Mary _ a
14、 dress when she cut her finger.A. madeB. is makingC. was makingD. makes 答案 C. 割伤手指是已发生的事情,应用过去时。同时, when 表时间的同时性,玛丽在做衣服时 提供事情发生的背景,因此用过去进行时。2) As she _ the newspaper, Granny _ asleep. read ; was fallingB. was reading; fellC. was reading; was fallingD. read ;fell 答案 B.句中的 as = when, while,意为 当 之时 。描述
15、一件事发生的背景时,用过去进行;一个长动作发生的时候,另一个短动作发生。句意为在她看报纸时,奶奶睡着了。句中的fell (fall 的过去时 ),是系动词,后跟形容词,如:fall sick 。一般将来时精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页,共 18 页第 - 5 - 页 共 18 页一。主 +will+v.+ 其它二主 +be going to+v.+其它三 主+be +v.ing+ 其它 , 此类常为移位动词。 如:go,come ,leave,arrive,move,leave for,fly(飞),take off, (起
16、飞) set off,drive等结构用法精讲一、 be going to 的用法点拨:be going to 是一种固定结构,它后面要接动词原形。含有be going to 结构的句子中往往有表示将来的时间状语,如:tomorrow, next week等。1、用来表示按计划或安排要发生的动作,有“ 准备;打算 ” 的意思。这种主观意图,一般已做过事先安排,故其实现的可能性较大,其主语常是人。We are going to have a class meeting this afternoon.今天下午我们打算开班会。(安排)2、表示根据现有情况、某种迹象,判断将要或即将发生的动作。此时不含
17、有主观意图,只是表示说话人对客观事态发展的判断或推测,此时主语可以是人,也可以是物。例如:Look at the black clouds. Its going to rain.看那些乌云,快要下雨了。(推测)I” m not feeling well, I” m going to be ill. 我感觉不是很好,可能要生病了。(表示说话人的感觉而已)若表示客观现象则只能用主+will+v.+ 其它,如:I will be 18 years old next year. It will be sunny tomorrow. 二、 be going to 在肯定句中的形式be going to
18、结构中的助动词be 很少用原形, be 随主语人称和数的变化而变化,它一般有三种形式, am , is , are 。而 going to 固定不变。即:当主语是I 时用 am ;当主语是第三人称单数时用is;当主语是其他人称时用 are 。I am going to buy something tomorrow morning.明天早上我要去买些东西。She is going to see Mr. Wang this afternoon.她打算今天下午去看望王先生。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 5 页,共 18 页第 - 6 -
19、 页 共 18 页三、含 be going to 的句子变否定句和一般疑问句的变法由于句子中有助动词be,因此 be going to 的否定句和一般疑问句的构成很容易,即在be (am, is, are) 的后面加上not 就构成了否定句;把be (am, is, are) 放到句首,在句末加问号就构成了一般疑问句,其答语为:Yes, 主语 + am/is/are. / No, 主语 + isnt/arent. / No, Im not.不过I am. 在改为一般疑问句时常常改为“ Are you .? ” 。例如:They are going to see the car factory
20、next week. (肯定句 ) They are not going to see the car factory next week. (否定句 ) Are they going to see the car factory next week? Yes, they are. (No, they arent.) (一般疑问句及其回答) 四、使用be going to 应注意的两点1 There be 句型的 be going to 结构为: There is / are going to be. (注意句型中going to 后面的 be 不能改为 have 。) 常用来表示将有某事发生
21、。例如:There is going to be a football match next Saturday in our school. 下周六我们学校将有一场足球比赛。2 come, go, leave, arrive等表示位置移动的动词常用现在进行时表示将要发生的动作,它们很少与be going to 结构连用。例如:Miss Sun is coming tonight.今晚孙小姐要来。They are going to the park next Friday. 下星期五他们打算去公园。4. “ be going to + 动词原形 ” 结构与表示将来的时间状语是否连用,在意思上有所
22、差别。如果其后有明确的时间状语,则表示该动作或状态发生的可能性较大;反之,则表示一种推测,表示未来可能发生的事情。例如:There is going to be a film in our school this evening. 今晚我们学校将有一场电影。(一定会发生)Hurry up! We are going to be late. 快点!我们要迟到了。 (仅表示一种推测)现在完成时 的用法主+have(has)+ 过去分词+其它成分1.现在完成时用来表示现在之前已发生活或完成的动作或状态,但其结果却和现在有联系,也精选学习资料 - - - - - - - - - 名师归纳总结 - -
23、- - - - -第 6 页,共 18 页第 - 7 - 页 共 18 页就是说 ,动作或状态发生在过去但它的影响现在还存在. I have lost my wallet.(含义是 :现在我没有钱花了.) Jane has laid the table.(含义是 :已可以吃饭了 .) Michael has been ill.(含义是 :现在仍然很虚弱) He has returned from abroad. (含义是 :现在已在此地) 2. 现在完成时可以用来表示发生在过去某一时刻的,持续到现在的情况,常与 for ,since连用 . Mary has been ill for thre
24、e days. I have lived here since 1998. 3. 现在完成时往往同表示不确定的过去时间状语连用,如 already, yet, just, before, recently, lately 等: He has already obtained a scholarship. I havent seen much of him recently (lately). We have seen that film before. Have they found the missing child yet 4. 现在完成时常常与表示频度的时间状语连用,如 often, s
25、ome times, ever, never, twice, on several occasion等: Have you ever been to Beijing I have never heard Bunny say anything against her. I have used this pen only three times. It is still good. George has met that gentleman on several occasions. 5. 现在完成时还往往可以同包括现在时间在内的时间状语连用,如 now, up to these few days
26、/weeks/months/years, this morning/week/month/year, now, just, today, up to present, so far 等: Peter has written six papers so far. Man has now learned to release energy from the nucleus of the atom. There has bee too much rain in San Francisco this year. The friendly relations and cooperation betwee
27、n our two countries have been enhanced in the past few years. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 7 页,共 18 页第 - 8 - 页 共 18 页Up to the present everything has been successful. 6. 现在完成时表示现在之前业已完成的动作,虽然其效果或影响仍然存在但已不再继续,但是有一些现在完成时的句子,在后面加上for+一段时间 ,则现在完成时的动作就表示延续性. Thomas has studied Russian.
28、(现在不再学俄语) Thomas has studied Russian for three years. (=Thomas began to study Russian three years ago, and is still studying it now.(同第 2点用法第一个例句) 7. 现在完成时还可以用来表示过去的一个时间到现在这段时间内重复发生的动作. We have had four texts this semester. = 现在完成时的“ 完成用法 ” 和“ 未完成用法 ”1.现在完成时的完成用法 现在完成时的完成用法 指的是动作发生在过去某一时刻并已结束,但该动作对现
29、在产生了影响,与现在情况具有因果关系。例如: He has turned off the light.他已把灯关了。(动作结束于过去,但说明的是现在的情况-灯现在不亮了。) 现在完成时 完成用法 的特点是动作不延续,因此,该时态只能与表示不定的过去时间状语(如: already ,yet,before ,recently 等)、频度时间状语(如: never ,ever,once 等)、包括现在时刻在内的时间状语(如: this morning month year. ,today 等 )连用。例如:Have you found your pen yet?你已找到你的钢笔了吗?2.现在完成时的
30、未完成用法 现在完成时的未完成用法 指的是动作开始于过去某一时刻,一直延续到现在,或可能还要继续下去。例如: He has lived here since 1978.自从 1978 年以来,他一直住在这儿。(动作起始于 1978年,一直住到现在,可能还要继续住下去。) I have been in the army for more than 5 years.我在部队已经呆了五年多了。(动作开始于 5年前,一直延续至今,有可能还要继续下去。) 此种用法的句中常需一个表示一段时间的状语(由 since 或 for 引导 ),或表示与现在时刻相连的时间状语 (如: up to now ,so f
31、ar) 等。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 8 页,共 18 页第 - 9 - 页 共 18 页例如: I have heard nothing from him up to now.到目前为止我没有他的任何消息。注意: (1)现在完成时的未完成用法只适用于延续性动词,不可用于终止性动词,即瞬间完成或延续时间很短的动词。如:come ,go,arrive ,leave ,join ,become ,die 等。(2)现在完成时常见两种句型:主语 have / has been for 短语It is一段时间since 从句例如: H
32、e has been in the League for three years.或 It is three years since he joined the League. 他入团已三年了过去完成时态总体上说它属于“ 过去 ” 这一时间段内发生的事情,它表达的是在某个过去动作或时间点之前发生的动作,简单地说就是“ 过去的过去 ” 发生的事情。过去完成时 的构成很简单, 即 had + 动词的过去分词。例如:had done, had gone, had built 等等。一、过去完成时的主要用法1、表示在过去动作之前已经发生的动作或存在的状态。比如说,A 事件发生在一个月前,而B 事件发生
33、两个月前,那么B 事件比 A 事件还要早发生,它就要使用过去完成时。例如: Most of the guest had left when he arrived at the party. (即:客人在他到之前已经离开了。)They had already had breakfast before they arrived at the hotel.(即:吃饭在先,他们到达在后。)注意:在上面两个例句,虽然表达时间的连词不同(when 当 时; before 在 前) ,但两件事发生的先后顺序很明显。请同学们不要被when, before之类的词搞混淆了,关键要抓住两件事情的先后关系。2、表达
34、在过去某个确定的时间之前发生的事或状态。例如: How many English films had you seen by the end of last term ? 在这个例句中,没有两个事件作比较。但是,它有一个明确的时间作参考,即last year 明确了告诉我们是“ 过去 ” 时间,而by the end of last year说的是在last year 之前完成的动作,因此它也是 “ 过去的过去 ” ,可以用过去完成时。请同学们仔细阅读下面的例句,注意时间精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 9 页,共 18 页第 - 1
35、0 - 页 共 18 页的先后关系和动作的先后顺序:I had finished writing my composition by 10:00 this morning.(今天上午 10:00点以前,我已经写完了我的作文。)She had searched the internet for two hours when she found an ad for the Canon digital camera. (当她找到了佳能数码照相机的广告时,她已经在因特网上查询了两个小时。)I went over what I had written again and again so that I
36、wouldnt make any mistakes.(我一遍又一遍地检查了我所写的内容,以至我没有出现任何错误。)The film had already begun when I got to the cinema . ( 当我到电影院时,电影已经开始了。 )过去完成时还可以表示从过去某一时间开始,持续到过去另一时间的动作或状态。例如:He had worked in the factory for five years before he moved here . ( 在他搬到这儿以前,他已经在那家工厂工作了五年。)I saw Li Ping yesterday . We had not
37、seen each other since I left Beijing . ( 我昨天看见李平了。自从我离开北京,我们就没见过面。)By the time I got there, it had already finished. When she got to the check-out, she realized she had left her purse at home. He said he had never seen Xiao Wang before. Ann had lived in a cottage for sixty years ever since she was b
38、orn. He arrived at 2 30. He had been told to wait in the VIP lounge3、在 told, said, knew, heard, thought等动词后的宾语从句。She said (that) she had never been to Paris. 4、 when 引导的从句 (注: 从句谓语动词为过去式) by 短语by the time引导的从句 (注:从句谓语动词为过去式) before 引导的从句 (注:从句谓语动词为过去式) 简单句、复合句及并列句1. 简单句:(1)定义:只有一个主语(或并列主语)和一个谓语(或并列谓
39、语)的句子叫简单句,如:We learn English . 我们学英语。(一个主语和一个谓语)Both Xiao Zhang and Xiao Wang are from Beijing . 小张和小王都是北京人。(一个并列主语和一个谓语)精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 10 页,共 18 页第 - 11 - 页 共 18 页He once lived and worked here . 他曾经在这里居住和工作过。(一个主语和一个并列谓语)My father and mother go to work at seven in th
40、e morning and come back home at eight in the evening . 我父母早上七点上班,晚上八点回家。(一个并列主语和一个并列谓语)(2)分类:上次我们对简单句按照句子基本结构分出的5种类型做了阐述;另外,根据句子的功能或使用目的,简单句可分四类:陈述句、疑问句、祈使句、感叹句。2. 并列句:(1)定义:用并列连接词连接起来的两个或两个以上简单句叫做并列句。(2)并列句的构成:简单句+连接词 +简单句(3)连接并列句常用的连接词:and , but , or , so , not only but also , however , neither no
41、r , either or , still 等。 eg. I help her and she helps me . 我帮她,她帮我。He is very old but he is in good health . 他年纪很大了,但他身体很好。We must hurry or we ll be late . 我们得赶快走,不然就晚了。This girl did her work carefully , so she never made any mistakes .这个姑娘工作认真,从不出差错。Jim not only wrote to me last week but also came
42、to see me yesterday . 吉姆上星期不但写信给我,而且昨天还来看过我。Neither could theory do without practice, nor could practice do without theory . 理论没有实践不行,实践没有理论也不行。Either he is to blame or I am . 不是他该受责备,就是我该受责备。注意:连接词so 除起连接并列句作用外,兼有结果意味;有时so 在后一句中代替前一句中某一句中成分。例如:He can swim , so can I . 他会游泳,我也会。 (so 代替 swim )Iron is
43、 a kind of matter , so are water and air . 铁是一种物质,水和空气也是物质。(so 在后一句中起表语作用)3. 主从复合句(1)定义:主从复合句是由一个主句和一个或一个以上的从句构成的。主句是句子的主体,精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 11 页,共 18 页第 - 12 - 页 共 18 页从句可视作句子的一个成分。从句在主从复合句中可起主语、宾语、表语、定语、状语作用。从句在全句中起什么作用,就叫什么从句。(2)状语从句:状语从句在句中起状语作用,修饰主句中的谓语动词、形容词或副词。在初中
44、阶段我们主要学习了以下几种状语从句: 时间状语从句:常见引导词:when (当 时) ,as(一边 一边,当 时) ,while(在 过程中), before (在 以前) ,after (在 之后) ,since (自从 以来) ,till(until ) (直到 ,直到 才) ,as soon as (一 就 )等。进入高中阶段之后,我们还会再见到另外一些常用的连接词。在由以上连接词或词组连接的主从复合句中,主句谓语动词所表示的动作和从句谓语动词所表示的动作有时是同时发生、有时是先后发生。因此,在理解和运用带时间状语从句的主从复合句时,要根据连接词所表示的不同时间意义,特别注意主句和从句的
45、谓语动词的时态。这是掌握时间状语从句的关键。 原因状语从句:常由because (因为), since (既然),as(由于)等连接词引导。eg.He didn t hear the knocking at the door because he was listening to the radio . 他没听见敲门声,因为他正在听收音机。Since you are free today , you had better help me with my English . 既然你今天休息,你最好帮我学习英语。As the day was fine , they decided to go on
46、 a trip . 由于天气好,他们决定作一次短途旅行。 地点状语从句:常由where (在 地方) ,wherever (无论 在哪儿) 等连接词引导。如: I ll go where work conditions are difficult . 我愿意到工作条件困难的地方去。Wherever you are , you should work for the people heart and soul . 无论你在哪里工作,你都应该全心全意为人民服务。 条件状语从句:常由if(假如,如果) ,unless (除非)等连接词或连接词组引导。如:If I go to the Great Wa
47、ll tomorrow , would you like to come along ?如果明天我去长城,你会和我一起去吗?He is sure to come unless he has some urgent work to do at home . 除非他家里有急事要办,不然他一定会来的。 比较或方式状语从句:常由asas(像 一样) , than (比) ,the the(越 就越) ,as(正如),as if (似乎,好象)等引导。如:精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 12 页,共 18 页第 - 13 - 页 共 18 页
48、I know you better than she does . 我比她更了解你。The more you practice , the more knowledge you will get . 你实践得越多,你得到的知识就越多。You should study English as hard as Mary does . 你应该像玛丽那样努力学习英语。The old man runs very fast as if he were a young man . 这位老人跑得很快,简单像个年轻人。 (在以 as if 连接的从句中, 谓语动词用过去式,系动词were 可用于所有人称,表示虚拟
49、语气,而不是真实情况。) 目的状语从句:常由so(使得),that(以便),so that (为了,使得) ,in order that (这样 就)等来引导。 如:They set out early that they might arrive at the station in time . 他们很早出发,以便及时赶到车站。She takes notes carefully in class so that she may use them when she reviews her lessons after class . 她在课上认真记笔记,以便能在课下利用它们复习功课。 结果状语从
50、句:常由so(结果),so that (结果),sothat( such that) (如此 以致 )等连接词引导。如:Everybody lent a hand , so the work was done in time . 人人帮忙,结果工作及时完成。He finished his homework so well that his teacher praised him in class . 他作业完成得很好,结果他的老师在班上表扬了他。The film was so interesting that I enjoyed it very much . 这部电影这么有趣(以致于)我非常喜
51、欢它。It is such a heavy box that nobody can move it away . 这是一个很重的箱子,谁也搬不走。 让步状语从句:常由though (although ) (虽然 但 ) , even if (即使),however(不管怎样) , whatever (无论什么), no matter how (who ) (不管多么 ) (无论谁 )等连接词或连接词组引导。如:He went to school , though he was ill . 虽然他病了, 但还是去上学了。(注意: 有 (al)though的句子,就有“ 虽 但是 ” 的含义,不能
52、在主句中用but ,但可接yet,still 等。 )She carried on the job even if she had a bad cold . 即使她患了重感冒,她还是坚持工作。However much I tried , I failed to work out the maths problem . 无论我怎么做,都算不出这道数学题来。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 13 页,共 18 页第 - 14 - 页 共 18 页Whatever you say , I will not change my mind .
53、不论你怎么说,我都不会改变主意。He keeps taking physical training in winter no matter how cold it is . 不论天气多冷,他都坚持在冬天进行体育锻炼。No matter who asks her for help , she is ready to help . 无论谁请她帮忙,她都愿意帮助。(3)定语从句:在复合句中修饰名词或代词的从句叫做定语从句。被定语从句修饰的名词或代词叫做先行词,定语从句必须放在先行词之后。引导定语从句的关系代词有who , whom , whose , which , that等。这些是我们在初中已学
54、习过的,对于它们的用法已经在以前的讲解中多次提到过,主要掌握它们指代人还是物,在句中可以充当什么成分。引导定语从句的关系副词有where , when , why等,这些是高中要学习的内容,在后面的讲解中我们会渗透其用法及定语从句其他内容。(4)名词性从句:宾语从句引导名词性从句的关联词有:连接词 that , whether , if ; 疑问代词who , what , which , whose;疑问副词when , where , how , why等。if 和 whether 的区别 . (1)if 和 whether 都可以引导宾语从句,常常可以互换,表示“ 是否 ” 。如:I d
55、on t know whether( =if)I should tell him. 我不知道是否应该告诉他。(2)但两者也有微妙的差别,请注意whether 可与 or not 连用,而if 不可以在句首时用whether ,而不用if;在介词后用whether ,而不用if;表示 “ 如果 ” 时用 if,而不用whether 。如:I don t know whether he will come or not. 我不知道他是否会来。Whether you take part in or not the result will be the same. 你参不参加结果都是一样的。It de
56、pends on whether he can solve the problem. 那取决于他能否解决这个问题。He can t decide whether to visit her or not. 他决定不出是否去看她。Whether he will come is still a question. 他是否会来还是一个疑问。引语转换时的各种相应变化精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 14 页,共 18 页第 - 15 - 页 共 18 页(3)祈使句的间接引语直接引语如果是祈使句,变成间接引语后,叫间接祈使句。祈使句表示命令时,
57、要把直接引语的动词say 变成 command, order, tell等动词,被转述的部分改为动词不定式。否定祈使句改为not to do 结构。“ Stay where you are,” she said. 她说: “ 呆在原地。 ” She told me to stay where I was. 她告诉我呆在原地。“ Don t smoke in the room,” he said. 他说: “ 别在房间里抽烟。” He told me not to smoke in the room. 她叫我别在房间里抽烟。祈使句表示请求时,常把直接引语的动词say 变成 ask, beg, r
58、equest, urge等动词。She said to me, “ Please wait till I return, will you?”她说: “ 请你一直等到我回来,好吗?” She begged me to wait till she returned. 她请求我一直要等到她回来。以 Let s 开头的祈使的句,通常将引述动词改为suggest ,然后再接that 从句。John said to Bill, “ Let s go hiking tomorrow.” 约翰对比尔说,“ 我们明天去徒步旅行吧。” John suggested to Bill that they (shou
59、ld) go hiking the next day. 约翰向比尔提议第二天去徒步旅行。(1)动词时态的变化 如果引述动词为现在时态,间接引语的动词可以保持原来的时态。He says, “ I have been writing a novel.”他说: “ 我一直在写一本小说。” He says that he has been writing a novel. 他说他一直在写一本小说。 如果引述动词为过去时态,间接引语中的时间就要往后推,即现在时间推至过去时间,过去时间推至过去的过去,将来时间推至过去将来时间。具体变化见下表:直接引语时态间接引语时态精选学习资料 - - - - - - -
60、 - - 名师归纳总结 - - - - - - -第 15 页,共 18 页第 - 16 - 页 共 18 页一般现在时一般过去时现在进行时过去进行时现在完成时过去完成时现在完成进行时过去完成进行时一般过去时过去完成时过去完成时过去完成时一般将来时过去将来时将来进行时过去将来进行时精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 16 页,共 18 页第 - 17 - 页 共 18 页直接引语间接引语today that day this morning/ afternoon/evening that morning / afternoon / ev
61、ening yesterday the day before, the previous day yesterday morning /afternoon etc. the previous morning / afternoon etc. the morning before, the afternoon before the day before yesterday two days before tomorrow the next day, the following day the day after tomorrow in two days time, two days after
62、精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 17 页,共 18 页第 - 18 - 页 共 18 页next week / month / year etc. the next week / month / year, etc. the following week / month / year etc. last night / month / year, etc. the previous night / month / year etc. the night before, the month before etc. two weeks / months / years ago the weeks before, two months before now then so far by then in 1990 in 1990 here there 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 18 页,共 18 页