英语时态总结.docx

1、英语时态总结英语时态总结1）宾语从句如果主句是一般现在是，则从句按实际情况判断，如果是过去是从句变为相应的过去，比如本来是一般现在变为一般过去，一般将来变为过去将来，现在进行变为过去进行，现在完成变为过去完成，等等 （2）状语从句，特殊的是条件状语从句，主句将来。从句一般现在。其他的时态保持一致。 （3）定语从句，按照具体情况来判断。不受主句限制， 例如，the women (whom you talked with yesterday) is hanmei.括号中的是定语从句 初中主要涉及到这三种。这也只是我自己的总结，你可以在多看写参考书这还有网上的。1.主语从句 1）主语从句可直接位于主

2、语的位置，如果从句较长，谓语又较短，可用it作形式主语，而将从句放在句末。常见的句型有： *It is a facta pitya questiongood news that. *It seemsappearshappenedhas turned out that. *It is clearimportantlikelypossible that. *It is saidreportedestimatedhas been proved that. It is said that comic books create a connection between people of the sam

3、e generation. It seems that the performance is very useful. 2)what引导的主语从句表示“.的东西时”，一般不用it作形式主语。 What we lack is experience. 3)what,who,when,why,whether等词含有各自的疑问意义，但它们引导的主语从句，都用陈述语序。 How the plan is to be carried out should be discussed again. I did know why I felt like crying. 2.宾语从句 1）宾语从句可位于及物动词、介

4、词和某些形容词后。连词that常可省略。介词后一般接疑问词引导的宾语从句。in that(因为),except that(除了),but that(只是）已构成固定搭配，其他介词后一般不接that引导的宾语从句。 *I promised that I would change the situation. *All this is different from what American young people would say about friendship. *He is certain that watching so much television is not good for

5、 children. *This article is well-written except that it is a bit too long. 2)宾语从句后如有宾补，要用形式宾语it来代替，而把宾语从句移至宾补之后。 He has made it clear that he would not change his mind. 3)在think,believe,suppose,expect等动词后的宾语从句中，如果谓语是否定的，一般将否定词移至主句谓语上，宾语从句则变成肯定形式。 He didnt think that the money was well spent. 3.表语从句

6、表语从句出现在结构为“主语+系动词+表语从句”的句子中。表语从句除可用that,what,when,why,whether,how等引导外，还可由because,as if(though)等引导。that常可省略。如主句主语为reason,只能用that引导表语从句，不可用because. Perhaps the most important thing to remember is that there is no one common type of life in America. The reason why so many people died there is that ther

7、e were not enough food supplies. It looks as if successful international cultural communication will make the world smaller. 4.同位语从句 同位语从句用于对前面出现的名词作进一步说明，一般用连词that引导，由于先行名词的意义不同，也可用whether,who,when,where,what,why,how等引导。常见的先行名词有fact,idea,belief,news,hope,conclusion,evidence,suggestion,order,problem

8、,report,decision.有时由于谓语较短，将同位语从句位于谓语之后。 She finally made the decision that she would join the fashion show. I had no idea how many books I could borrow at a time. The news came that their team had won the championship. 5.定语从句 定语从句所修饰的先行词可以是名词或代词，也可以是一个句子。定语从句通常位于先行词之后，由关系代词或关系副词引导。 *限制性定语从句 限制性定语从句修

9、饰先行词，对先行词起修饰作用，紧接先行词之后，无逗号，若省去，原句意思不完整。引导定语从句的关系代词有who,whom,whose,which,that等。who,whom,whose用于指人，whose有时也可指物，相当于of which；which用于指物；that既可指人也可指物，但只用于限制性定语从句中。关系代词除了引导定语从句，替代先行词外，还在从句中担任主语、宾语、定语等。 The computers and cables which make up the Internet are owned by people and organizations. Those who live

10、 alone or who are sick may have trouble in getting close to other people. The girl whose parents died in an accident is living with her grandmother. 1)当先行词是all,anything,everything,something,nothing等不定代词或先行词前有first,last,any,few,much,some,no,only以及形容词最高级修饰时，只能用关系代词that引导从句。 That is all that Ive heard

11、from him. Hes the first person that Im going to interview this afternoon. 2)关系代词的省略 在从句中作宾语的关系代词常可省略。关系代词紧跟介词，作介词宾语时不可用that，只可用which或whom引导从句，并且不可省略，但当介词位于宾语从句句末时，作为介词宾语的关系代词仍可用that，也可省略。 This is one of those things with which we have to put up. This is one of those things (whichthat) we have to put

12、 up with. 3)引导定语从句的关系副词有when,where,why等。关系副词在从句中作状语，意义上相当于一个“介词+which”的结构。 Even in comic books where(=in which) there are no words,the stories are fully expressed through the drawings. No one knows the reason why(=for which) he was so angry that day. 5.定语从句 *非限制性定语从句 非限制性定语从句既可修饰先行词，也可修饰整个主句，起补充说明作用

13、，与主句之间有逗号隔开，若省去，原句意思不受影响。不可用that引导非限制性定语从句。关系词不可省略。 Every object has a gravitational pull,which is rather like magnetism. *“介词+whichwhomwhose”引导的定语从句 “介词+whichwhomwhose”可引导限制性定语从句，也可引导非限制性定语从句，该结构中介词的选择取决于从句谓语动词的固定搭配，或先行词的习惯搭配。 This is the computer on which he spent all his savings It is written by

14、a person with whom we are all familiar. *as引导的定语从句 as引导的定语从句主要用于“such.as”及“the same.as”的结构中，代替先行词是人或物的名词。as引导非限制性定语从句时，代替整个主句，从句可位于主句之前、之后或中间。 These are not such problems as can be easily solved.(as代替先行词problems) As is mentioned above,no single company or group can control what happens on the Intern

15、et.(as代替主语) 6.状语从句 *时间状语从句 引导时间状语从句的从属连词和词组有： 1）when,whenever,while,as,after,before,since,till,until,once等。 We have learnt quite a lot about it since we came here. 2)as soon as,hardly(scarcely).when,no sooner.than,each(every) time,the moment,immediately(that)等。 As soon as I sent an e-mail message,I

16、received positive responses. The moment he heard the good news,he jumped with joy. *地点状语从句 引导地点状语从句的连词是where,wherever. Wherever she went,she took her little daughter with her. *原因、结果和目的状语从句 1）引导原因状语从句的从属连词有：because,as,since,now(that),seeing that,considering that,in that等。 Considering that he is a fr

17、eshman,we must say he is doing well. 2)引导结果状语从句的连词有：so.that,such.that ,so that,that,so等。 Mickey Mouse is so attractive that the children are reluctant to leave. 3)引导目的状语从句的连词有：so that,in order that,for fear that,lest等，从句常使用may,might,can,could,would等情态动词。 We got up early this morning so that we could

18、 catch the first bus to the railway station. *条件和让步状语从句 1）引导条件状语从句的连词和词组有if,unless,as(so) long as,on condition that,in case,provided(providing) that,supposing等。 As long as you have the right equipment,you can use a telephone line to transmit computer data. 2)引导让步状语从句的连词和词组有though,although,whether,ev

19、en though,even if,no matter what(when,how.),whatever(whenever,wherever,however.)等。though,even if等引导状语从句可转换成含有as的部分倒装结构，具有强调意义。其结构为“形容词（副词、动词、名词）+as+主语+谓语”。 No matter what you may say,I would not change my mind. Young as he is,he is quite experienced in this work.(=though he is young) Child as he is,

20、he can speak English fluently.(=though he is a child) *方式状语从句 引导方式状语从句的连词有as,just as,as if,as though等。as if,as though引导的状语从句中，谓语动词常用虚拟语气，表示与事实相反。 The young man made the experiment just as the teacher had taught him. Everything went on as usual as if nothing had happened.时态（Tense）是表示行为、动作和状态在各种时间条件下的

21、动词形式。因此，当我们说时态结构的时候，指的是相应时态下的动词形式。 英语时态分为16种：一般现在、一般过去、一般将来、过去将来时，以及这四者的进行时、完成时和完成进行时。 1. 一般现在时 用法： A) 表示现在发生的动作、情况、状态和特征。 B) 习惯用语。 C) 经常性、习惯性动作。 例：He always helps others. （他总是帮助别人。） D) 客观事实和普遍真理。尤其要注意，如果前后文不是一般现在时，则无法保持 主句、从句时态一致。 E) 表示一个按规定、计划或安排要发生的动作，（仅限于某些表示“来、去、动 、停、开始、结束、继续”等的动词 ）可以与表示未来时间的状语

22、搭配使用 。常见的用法是：飞机、火车、轮船、汽车等定期定点运行的交通方式。 例：The next train leaves at 3 oclock this afternoon. （下一趟火车今天下午3点开车。） How often does this shuttle bus run? （这班车多久一趟？） F) 在时间和条件状语从句里经常用一般现在（有时也用现在完成时）表示将来事 情。 例：When you have finished the report, I will have waited for about 3 hours.（等你完成这份报告的时候，我就已经等了将近3个小时了。） 2

23、. 现在进行时(be doing) 用法：现在正在进行的动作。 3. 现在完成时(have done) 用法： A) 表示动作到现在为止已经完成或刚刚完成。 例：I bought a new house, but I _ my old one yet, so at the moment I have two houses. A) didnt sell B) sold C) havent sold D) would sell 答案是C) havent sold。 B) 表示从过去某时刻开始，持续到现在的动作或情况，并且有可能会继续延续下去。此时经常用延续性动词。时间状语常用since加一个过去的

24、时间点，或for加一段时间，或by加一个现在时间。 例：Great as Newton was, many of his ideas _ today and are being modified by the work of scientists of our time. A) are to challenge C) have been challenged B) may be challenged D) are challenging 全句的意思是：“虽然牛顿是个伟大的人物，但他的许多见解直到今天还在受到挑战，并且被现代科学家的工作所修正。”challenge是及物动词，在本句中应当是被动语

25、态；其动作延续到今天，所以要用现在完成时态。可见答案是C) have been challenged。A) are to challenge和D) are challenging都是主动语态，不可能是答案。B) may be challenged虽然是被动语态，但意思与全句内容不合，所以不对。 C) 表示发生在过去，但对现在仍有影响的动作或情况。通常用点动词，如：arrive, begin, find, give, lose等。 例：John has broken his left leg.（约翰摔断了左腿。） 注意事项 A) 现在完成时是联系过去和现在的纽带。现在完成时和过去时的区别在于：现

26、在完成时强调动作的动态，或受动态的影响，是动态的结果，对现在有影响；过去时只表示过去的某个具体时间里发生的动作，与现在没有联系。 例：He worked in that hospital for 8 years.（他曾经在那家医院工作了8年。这只是讲述一个过去的事实，他现在已经不在那家医院了。） He has worked in that hospital for 8 years.（他已经在那家医院里工作了8年。表示他从过去开始工作，一直工作到现在，现在仍在那家医院工作。） B) 因为含有for加一段时间或since加一个时间点这样的时间状语的完成时，有动态和延续性的特点，所以不能使用终端动词

27、或瞬间动词。 例：My sister has been married for 5 years.（过去分词做表语表示状态，可以延续） My sister has married. Dont disturb her.（终端动词） C) 在this is the first/ second/ third time that句型里要求用完成时。 例：This is the second time that the products of our company have been shown in the International Exhibition.（这是我公司产品第二次参加国际展览会。） D

28、) 句型It is/ has beensince所使用的两种时态都正确。 例：It is/ has been 10 years since I last saw him.（从我上次见到他以来已经10年了。） E) 在no sooner than、hardly/ scarcely when、before、prior to等句型中，主句要求完成时。 例：I havent met that professor prior to today.（以前我从未见过那位教授。） 4. 现在完成进行时(have been doing) 用法：表示某一动作开始于过去某一时间，延续或重复地出现至今，或将继续延续至将

29、来。 例：We have been working on this project for over a month now.（到目前为止，我们一直在处理那个项目，已经花了一个多月时间了。） 注意事项：与现在完成时相比，现在完成进行时更强调：在从过去到现在的时间里，动作或状态一直持续或一直反复出现。 例：1997年6月四级第45题 It seems oil _ from this pipe for some time. Well have to take the machine apart to put it right. A) had leaked B) is leaking C) leak

30、ed D) has been leaking 从本题上下文看，这两个句子的意思是：“看来，这个管道漏油已有一段时间了，我们将不得不拆卸机器排除故障。”第二句表示将要采取的措施。第一句动作发生在第二句之前，并且延续到现在为止仍在继续。因此，空格中需用现在完成时或现在完成进行时。D) has been leaking是现在完成进行时，因此是本题的答案。有11%的考生误选了B) is leaking。由于本句有时间状语for some time，表示谓语动作延续，谓语不能用现在进行时，必须用和完成时有关的时态。有些考生误选了C) leaked或A) had leaked。是因为他们没有注意到本题第二

31、句是一般将来时，所以第一句的谓语不能用过去时或过去完成时。 5. 一般过去时 用法： A) 表示过去某个时间发生的动作或情况。 B) 表示过去习惯性动作。特别是由would/ used to do表达的句型，本身表示的 就是过去时。 例：The old man would sit on a bench in the quiet park and look at others for hours without doing anything or talking to anybody.（老人过去常常坐在宁静的公园里的一条长椅上，看着其他的人，一坐就是数个小时，什么也不干，也不和任何人交谈。） He used to visit his mother once a week.（他以前总是每周看望一次他的母亲。） C) 有时可代替一般现在时，表达一种婉转、客气、礼貌、商量的语气。 例：I wanted to ask you if I could borrow your car?（我想向您借车用一用，可以吗？） Would you mind my sitting here?（您介意我坐在这里吗？） 注意事项： A) 注意时间状语的搭配。一般过去时的时间状语应该是表示过去某个时间的词或词组，如：yesterday, las