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初中英语《宾主从句的时态变化》知识点
宾语从句的时态
(1) 若主句是一般现在时、一般将来时或祈使句时,宾语从句根据句子的意义使用需要的时态。如:
We don’t know who has broken the window. But we will find out who has done that.
Please tell me where we will go.
(2) 若主句是一般过去时,宾语从句要用相应的某种过去时态,如一般过去时、过去进行时、过去将来时或过去完成时。如:
He said: I’m a student. ----- He said that he was a student.
The teacher asked: What is Mike doing? ----- The teacher asked what Mike was doing.
(3) 若宾语从句叙述的是客观真理或永恒不变的规律,则应采用一般现在时,不受主句时态的限制。如: Our teacher said that the earth moves round the sun.
返回:初中英语知识点详解——宾语从句篇
初中英语语法知识点总结:接动名词作宾语的动词
接动名词作宾语的动词
【速记口诀】
Mrs.P Black missed a beef bag.
【妙语诠释】
该句话中每个字母代表了一个动词或短语,这些动词要求后面跟动名词作宾语。这些动词分别是:
M=mind,r=risk,s=succeedin,P=practice,B=bebusy,l=lookforwardto,a=admit,c=can’thelp,k=keepon,m=miss,i=insiston,s=suggest,s=stop,e=enjoy,d=delay,a=avoid,b=beworth,a=advise,g=giveup。
初中英语语法知识点总结:宾语从句用法
宾语从句用法
【速记口诀】
宾语从句须注意,几点事项应牢记。
一是关键引导词,不同句子词相异。
陈述句子用that;一般疑问是否(if,whether)替;特殊问句更好办,引导还用疑问词。
二是时态常变化,主句不同从句异。主句若为现在时,从句时态应看意;主句若为过去时,从句时态向前移。
三是语序要记清,从句永保陈述序。
【妙语诠释】
宾语从句应注意三点:①引导词,陈述句一般由that引导,这时的that可以省略;一般疑问句则由if或whe-ther引导;而特殊疑问句则由特殊疑问词引导。②时态,主句是现在时态,从句可用所需要的任何时态;但如果主句是过去时态,从句时态所表示时间一般往前移一个时间段。③语序,宾语从句永远要用陈述句顺序。
一.宾语从句的定义
置于动词、介词等词性后面起宾语作用的从句叫宾语从句。宾语从句的语序必须是陈述语序。谓语动词、介词、动词不定式,v.-ing形式后面都能带宾语从句。有些形容词(afraid,sure,glad等)之后也可以带宾语从句。
二.宾语从句中引导词的用法
在复合句中作主句的宾语,引导词有:
连词:that (that 常可省略),whether, if
代词:who, whose, what ,which
副词:when ,where, how, why 等。
(一)that引导的宾语从句(在非正式场合that可以省略)
可跟that从句做宾语的动词有:
say, think, insist, wish, hope, demand, imagine, wonder, know, suppose, see, believe, agree, admit, deny, expect, explain, order, command, feel, dream, suggest, hear, mean, notice, prefer, request, require, propose, declare, report等。
例句:The boy believes that he will travel through space to other planets.
注意事项:当主句谓语动词是 think, believe, suppose, expect 等词,而宾语从句的意思是否定时,常把否定转移至主句表示。
例句:I don’t think it is right for him to treat you like that.
在以下情况中that不能省略
1.当句中的动词后接多于两个由that引导的宾语从句时,第一个that可省,但后面的that不可省。
例句:He said (that) you were too young to understand the matter and that he was asked not to tell you.
2.当主句的谓语动词与that宾语从句之间有插入语时,that一般不可省。
例句:Just then I noticed, for the first time, that our master was wearing his fine green coat and his black silk cap.
3.当that从句是双宾语中的直接宾语时,that不可省。
例句:I can’t tell him that his mother died.
注意事项:许多带复合宾语的句子,that引导的宾语从句经常移到句子后部,而用it作形式宾语。
例句:I find it necessary that we should do the homework on time.
(二)由whether,if 引导的宾语从句
由whether(if)引导的宾语从句,实际上是一般疑问句演变而来的。意思是“是否”。宾语从句要用陈述句语序。一般说来,在宾语从句中whether与if可以互换使用,但在特殊情况下if与whether是不能互换的。
例句:I wonder whether(if) they will come to our party.
只能用whether,不能用if引导的宾语从句
1.在带to的不定式前
例句:We decided whether to walk there.
2.在介词的后面
例句:I’m thinking of whether we should go to see the film.
3.在动词后面的宾语从句时
例句:We discussed whether we had a sports meeting next week
4.直接与or not连用时
例句:I can’t say whether or not thet can come on time.
只能用if不能用whether引导的宾语从句
1.if引导条件状语从句,意为“如果”
例句:The students will go on a picnic if it is sunny.
2.if引导否定概念的宾语从句时
例句:He asked if I didn’t come to school yesterday.
3.引导状语从句even if(即使)和as if(好象)时
例句:He talks as if he has known all about it.
初中英语语法 攻克宾语从句的三大秘笈
秘笈一:引导词
宾语从句的引导词常常有以下三种:由陈述句转化而来的宾语从句,引导词为that,that在口语或非正式文体中可省略;由一般疑问句转化而来的宾语从句,引导词为if或whether;由特殊疑问句转化而来的宾语从句,引导词为句子本身的特殊疑问词,即what,when,where等。如:
I think(that)he will come here by train. 我认为他会坐火车来这儿的。
He asked me if / whether I know his new address. 他问我是否知道他的新地址。
I want to know when you got back home yesterday. 我想知道你昨天什么时候到家的。
秘笈二:语序
宾语从句的语序为陈述句语序,即“主语+谓语+宾语+其他”。也就是说,将疑问句转化成宾语从句时,一定要将疑问句语序转变成陈述句语序。如:
Can you tell me what he will do tomorrow? 你能告诉我他明天将要做什么吗?
注:当疑问句在宾语从句中做主语时,语序不变。如:
Do you know what makes him so excited? 你知道什么事使他如此兴奋吗?
I don’t know what is wrong with him. 我不知道他出什么事了。
秘笈三:时态
主句为一般现在时态,则宾语从句根据实际情况用任意的时态;但主句为一般过去时态时,宾语从句则要用过去的相对应的某种时态。例如:
She tells me that she will come by bus. 她说她将要坐公交车来。
She told me that she would come by bus. 她说她将要坐公交车来。
注:如果宾语从句表示的是客观真理或是科学事实,其谓语动词仍用一般现在时态。如:
Our teacher told us that the sun is much bigger than the moon.
老师告诉我们说太阳比月球大得多。
初中英语语法 宾语从句中的从句的简化
1. 当主句谓语动词是find,see,watch,hear等感官动词时,从句常简化为“宾语+宾补”结构,宾补为不带to的不定式或V-ing形式。如:
She found that the wallet was lying on the ground.
→She found the wallet lying on the ground.
2. 当主句谓语动词是hope,wish,decide,forget,plan,agree等,且主句主语与从句主语相同时,从句可简化为不定式结构。如:
She agreed that she could help me with my maths. →She agreed to help me with my maths.
3. 在连接代词/副词引导的宾语从句中,当从句主语与主句主语或间接宾语一致时,宾语从句可简化为“连接代词/副词+不定式”结构。如:
Can you tell me how I can get to the station? →Can you tell me how to get to the station?
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