从句总结知识点

时间:2021-08-31

从句总结知识点

  从句是英语知识中的重点和难点,那一起来看看从句的知识点吧,下面是小编为大家收集整理的从句总结知识点,欢迎阅读。

  从句总结知识点:定语从句

  一、关系代词引导的定语从句

  1、由who, whom, that,Whose引导的从句

  这些词代替的先行词是人的名词或代词,who作主语指人,whom作宾语指人,that既可作主语又可作宾语(作宾语可以省略),可以指人也可以指物。Whose 用来指人或物,只用作定语。

  (1) Is he the man who/that wants to see you? 他是那个想见你的男人吗?(who/that在从句中作主语)

  (2) He is the man whom/ that I saw yesterday. 他就是我昨天见的那个人。(whom/that在从句中作宾语)

  (3) The man whom you spoke to just now is our English teacher 你刚刚说话的那个男人是我们的英语老师

  (4) he man whose son is a doctor is our professor. 那个儿子是医生的男人是我们的教授。

  2、由which, that引导的从句

  它们所代替的先行词是事物的名词或代词,在从句中可作主语、宾语等,作宾语时可以省略,例如:

  (1) Prosperity which / that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。(which / that在从句中作主语)

  (2) The package (which / that) you are carrying is about to come unwrapped. 你拿那个包裹快要散开了。(which / that在从句中作宾语)

  注意: 代表物时多用which,但在下列情况中用that而不用which:

  a)先行词是anything, everything, nothing , none等不定代词时;

  b)先行词由every, any, all, some, no, little, few, much等修饰时,这时的that常被省略;

  c)先行词前有序数词或被形容词最高级修饰时;

  d)先行词中既有人又有物时;

  e)整个句中前面已有which,who,that时;

  f)当先行词为物并作表语时;

  g)先行词为one时;

  h)先行词同时又被the only,the very,the same修饰时;

  二、关系副词引导的定语从句

  1、when指时间在定语从句中做时间状语也可做连接词用

  I still remember the day when I first came to the school.

  2、where指地点在定语从句中做地点状语    Shanghai is the city where I was born.

  3、why指原因在定语从句中做原因状语 ,用在reason 后面。 Please tell me the reason why you missed the plane.

  常见考法

  对于定语从句的考查,多以单选的形式考查学生灵活运用的能力。一般情况下,常从关系词的意义和功能的角度考查,重点是that,which,who引导的定语从句。

  典型例题:

  You're the only person ______I've ever met ______could do it.

  A. who B. whom C. whom D. who

  解析:先行词person后有两个定语从句,第一个从句省略了关系代词whom.因为, whom作从句中met的'宾语,可以省略.第二个从句who could do it.who在从句中作主语,不可省略.

  答案:D

  从句总结知识点:宾语从句

  一、.引导词

  1.从句为陈述句,常选择引导词that,that引导宾语从句无意义,不充当句子成分常省略。例句:He told us (that) they would help us through the whole work.

  2.从句为一般疑问句,常选择引导词if或whether,表示“是否”。在 whether … or not 结构中不能用 if 替换。例句:I don’t know if there will be a bus any more.

  3. 从句为特殊疑问句,常选择what,when,where,which,who,how等的疑问代词、副词作引导词。 例句:He didn’t tell me when we should meet again.

  二、判断时态情况:

  1.主句是一般现在时,从句可以为各种时态。

  2.主句是一般过去时,从句要用相应过去时态。

  注意:从句描绘客观事实、真理、自然现象等,从句时态不受主句时态限制,仍用一般现在时。

  例句:He answered that he was listening to me.

  Father told me that practice makes perfect .

  三、宾语从句的语序要用陈述句语序

  陈述句语序,就是主语在前,谓语动词在后。

  错误: He is wondering when can he finish this difficult job.

  正确: He is wondering when he can finish this difficult job.

  注意:宾语从句的否定转移

  主句的谓语动词是think,believe,imagine,suppose,consider,expect,fancy,guess等,并且主句的主语是第一人称而且为一般现在时,从句的否定词一般要转移到主句上来,其反义疑问句一般与宾语从句一致.  例如; I don’t think he will come to my party.而不能说成I think he won’t come to my party.

  常见考法

  对于宾语从句的考查,多以单选的形式考查学生灵活运用的能力。一般情况下,常从引导词的选择、时态的一致性及从句的陈述语序方面考查。

  典型例题:Please tell me ______ last year.

  A.where does your sister work B where did your sister work

  C .where your sister works D where your sister worked

  解析:本题考查对宾语从句的掌握。宾语从句要用陈述语序,所以排除A和 B;last year 表示过去时 ,所以排除 C 。

  答案:D

  从句总结知识点:状语从句

  1时间状语从句

  由when, as, while, after, before, since, until, as soon as 等从属连词引导的状语从句。时间状语从句中的谓语动词不能用一般将来时,只能用一般现在时表示将来发生的动作或存在的状态。 如:I will call you as soon as I arrive there.

  2原因状语从句

  because, since, as和for都表示原因。常常令我们不知该用哪个好。我们来比较一下。because语势最强,回答why提出的问题,用来说明人所不知的原因。当能够很明显的看出原因或人们已知原因,就用as或since。如:I don't like that coat,because the color looks terrible. 由because引导的从句如果放在句末,且前面有逗号,则可以用for来代替。但如果不是说明直接原因,而是多种情况加以推断,就只能用for。如:He is not here, because / for his mother is ill.

  3目的状语从句

  表示目的状语的从句可以由in order that, so that,等词引导。如:You must raise your voice so that/in order that everybody can hear you clearly.

  4结果状语从句

  结果状语从句常由so...that 或 such...that引导,要掌握和区分这两个句型,首先要了解so和such后面分别跟什么词。such是形容词,修饰名词或名词词组,so是副词,只能修饰形容词或副词。so 还可与表示数量的形容词many, few, much, little连用,形成固定搭配。如:The box is so heavy that I can't carry it.

  5让步状语从句

  是由though, although 引导的状语从句。though, although 和 but不能同时使用。

  Although it rained, they had a good time.

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