初中英语语法连词讲解「初中英语语法丨连词的用法详解」
用来连接词,短语,从句或句子的词叫连词。连词是一种虚词,在句中不能单独使用。连词可分为两类:并列连词和从属连词。
2. 并列连词
并列连词用来连接具有并列关系的词,短语或句子。常见的并列连词有:
(1) 表并列关系的and, both…and, not only…but also, neither…nor等。
(2) 表选择关系的or, either…or等。
(3) 表转折关系的but, while等。
(4) 表因
1. 连词的功能
用来连接词,短语,从句或句子的词叫连词。连词是一种虚词,在句中不能单独使用。连词可分为两类:并列连词和从属连词。
2. 并列连词
并列连词用来连接具有并列关系的词,短语或句子。常见的并列连词有:
(1) 表并列关系的and, both…and, not only…but also, neither…nor等。
(2) 表选择关系的or, either…or等。
(3) 表转折关系的but, while等。
(4) 表因果关系的for, so等。
3. 从属连词
从属连词用来引导从句。常见的从属连词有:
(1) 引导时间状语从句的after, before, when, while, as, until, till, since, as soon as等。
(2)引导条件状语从句的if, unless等。
(3) 引导原因状语从句的because, as, since等。
(4) 引导目的状语从句的so that, in order that等。
(5) 引导让步状语从句的though, although, even if等。
(6) 引导结果状语从句的so that, so…that, such…that等。
(7) 引导比较状语从句的than, as…as等。
(8) 引导名词从句的that, if , whether等。
4. 常用连词的用法辨析
(1)while, when, as
这三个连词都可引导时间状语从句,但用法有所不同。
1) 当某事正在进行的时候,又发生了另一件事。While, when, as 都可用来引导表示“背景”的时间状语从句。例如:
As/When/While I was walking down the street I noticed a police car.
我沿着街道走时,注意到一辆警车。
2) 当两个长动作同时进行的时候,最常用的是while。例如:
While mother was cooking lunch, I was doing my homework.
当母亲做午饭时,我正在做作业。
3) 当两个动作都表示发展变化的情况时,最常用的是as。例如:
As children get older, they become more and more interested in things around them.
随着孩子的长大,他们越来越多对周围的事情感兴趣。
4) 当两个短动作同时发生时,或表示“一边…一边…”时,最常用as。例如:
She looked behind from time to time as she went.
她边走边不时地朝后面看。
5) 当从句的动作先于主句的动作时,通常用when。例如:
When he finished his work, he took a short rest.
当他完成工作后,他进行了短暂的休息。
6) 当从句是瞬间动作,主句是延续性动作时,通常用when。例如:
When John arrived I was cooking lunch.
当约翰到达时,我正在做饭。
(2)as, because, since , for
这四个词都可表原因,但用法有区别。
1) 如果原因构成句子的最主要部分,一般用because。因此,because引导的从句往往放在句末。例如:
I stayed at home because it rained.
因为下雨,所以我呆在家里。
---Why aren’t you going?
为什么你不走?
---Because I don’t want to.
因为我不想去。
2) 如果原因已被人们所知,或不如句子的其它部分重要,就用as或since。Since比as稍微正式一点。As和since 引导的从句一般放在句子的开头。例如:
As he wasn’t ready, we left without him.
由于他没有准备,我们没有带他。
Since I have no money, I can’t buy any food.
既然我没有钱,我不能卖任何食物。
3) for用来补充说明一种理由,因此,for引导的从句几乎可以放在括号里。For引导的句子不放在句子的开头。例如:
I decided to stop and have lunch----for I was feeling quite hungry.
我决定停下来,吃午饭。因我感觉很饿。
(3)if, whether
if和whether都可作“是否”讲,在引导宾与从句是一般可互换。例如:
I wonder whether (if) you still study in that school.
我想知道你是否还在那所学校学习。
I don’t know whether (if) he likes that film.
我不知道他是否喜欢这部电影。
在下列情况下,只能用whether,不能用if:
1) 引导主语从句时。例如:
Whether he will come to the party is unknown.
他是否来参加聚会还不知道。
2) 引导表语从句时。例如:
The question is whether I can pass the exam.
问题是我能否通过考试。
3) 在不定式前。例如:
I haven’t made up my mind whether to go there or not.
我还没有决定是否去哪儿。
(4)so…that, such...that
1) so…that中的so是个副词,其后只能跟形容词或副词,而such...that中的such是个形容词,后接名词或名词短语。例如:
I’m so tired that I can’t walk any farther.
我很累,因此不想再走了。
It was such a hot day that he went swimming.
如此热的天气,以至于他去游泳。
2) 如果在名词之前有many, much, little, few时,用so,不用such。例如:
He has so little education that he is unable to get a job.
他受到得教育很少以致于他找不到工作。
(5)either…or…, neither…nor, not only…but also…
这三个连词词组都可连接两个并列成分。当它们连接两个并列主语时,谓语动词要随相邻的主语变化。例如:
Either you or he is wrong.
Neither he nor his children like fish.
不但他不喜欢而且他的孩子也不喜欢鱼。
Not only the teacher but also the students want to buy the book.
不但老师而且学生想买这本书。
(6)although, but
这两个连词不能用在同一个句子中。例如:
我们不能说“Although he is over sixty, but he works as hard as others.”
这个句子应改为:Although he is over sixty, he works as hard as others.或
He is over sixty, but he works as hard as others.尽管他已是六十多岁,但他和其他工作一样努力。
(7)because, so
这两个连词同样不能用在同一个句子中。例如:我们不能说“Because John was ill, so I took him to the doctor.” 这个句子应改为Because John was ill, I took him to the doctor.或John was ill, so I took him to the doctor. 因为约翰病了,所以我带他看医生。
(8)till/until与not…till/until的区别
前者表示一个延续性的动作,后者表示一个才开始的动作。如:
I will stay here and watch the baby until you return.
我会呆在这里看着娃娃直到你回来 (stay这个动作一直进行到你return)
They won’t go on working until they get what they think is reasonable.
他们要到获得了他们认为合理的东西时才会继续干下去的
另外till与until基本可以互换,但是在句首时只能用until,不能用till. 如:
Until the last minute of the match we kept playing.
我们坚持到比赛的最后一分钟
Not until he had finished his work did he go home.
直到做完工作他才回家(倒装句)
(9)though与although的区别
两个词都表示“虽然”,均不可以与but同时使用,但在句中可加still或yet连用。although“尽管、虽然”仅作连词,比较正式,一般可以换为though;though“虽然、尽管、即使”,还可以与even连用(=even if),表示“即使、纵然”,作副词时意思是“然而、不过”,不能放在句首。如:
He passed the exams although illness prevented him from going to classes.
尽管疾病使他无法上课但是他还是通过了考试
she won’t leave the TV set, even though her husband is waiting for her for the supper.
她不愿离开电视机虽然丈夫在等她吃饭
It was a quiet party. I had a good time, though.
这是个不热闹的聚会尽管如此我还是玩得很开心
(10)prefer to…rather than…与prefer…to…的区别
prefer to…rather than…后面都是用动词原形,prefer…to…都是用动名词或名词。如:
I prefer English to Japanese.
与日语相比我更喜欢英语
I prefer to learn English rather than learn
Japanese.
与日语相比我更喜欢学英语
英语连词用法大全
说到连词大家可能最先想到的就是“and”“or”“but”,除了这些还有哪些连词呢,这些连词的结构、用法又是怎样的呢,下面就来详细了解一下初中英语连词的具体用法。
英语连词用法大全,英语常用连词有哪些
连词的定义
连词是连接字、 短语 、从句与 句子 的词,是虚词,因此它不能独立担任句子成分。连词主要分为两大类:并列连词和从属连词。并列连词用来连接并列关系的词、词组或分句。它包括:and,or,but,so,for,both…and,either…or,neither…nor,not only…but also。
从属连词用来引导从句,它包括: that, when, till, until, after, before, since,because,if,whether,though,although,so…that,so that,in order that,as soon as
并列连词用来连接具有并列关系的词,短语或句子。常见的并列连词有:
英语连词用法大全,英语常用连词有哪些
(1)表并列关系的and, both…and, not only…but also, neither…nor等。
(2)表选择关系的or, either…or等。
(3)表转折关系的but, while等。
(4)表因果关系的for, so等。
知识点概述
并列连词和从属连词的用法
连词是连结单词、短语、从句或句子的虚词, 在句子中不单独作句子成份。
连词按其性质可分为:
1.并列连词 如:and, or, but, for, 等, 连接并列的词与词,短语与短语,句子与句子。
如:Rice and potatoes are common foods. (词与词)
Today we can travel by plane. (短语与短语)
Many trees lose their leaves in winter, but evergreen trees do not. ( 句子与句子)
关联连词是一类成对使用的连词
如:both……and……, not……but…….
not only……but also…… not only…but… as well
either……or…… neither……nor……
关联连词必须后接同样的语法结构。
如:Either the windows were opened or the door was opened.
2.从属连词 如:that, whether, when, because, though 等, 用以引导名词性从句和状语从句。
英语连词用法大全,英语常用连词有哪些
3.从属连词引导的从句不可以被断成一个句子。 如果断开,就错了。
如:When the alarm clock rang. (不完整)
4. though (although)引导让步状语从句,because 引导原因状语从句, 所以though(although)不能和并列连词but ,because 不能和并列连词 so一起使用。 只能单独使用。
复习时需要注意的要点
(1)表示选择关系的连词,连接的双方只取其一。常用连词有or, either...or, otherwise
例如:
1)You can go to Beijing either today or tomorrow
2)You must get up early or you won’t catch the early bus.
(2)表示转折关系,连接的双方构成对比,意义上有转折。常用连词有but, however, while, only
例如:
1) His brother is fond of football while he likes basketball.
2) You can watch TV, but you must finish your homework first.
(3)表示联合关系,联合的双方是对等的,意义上趋向一致。常用连词有:and, both...and, neither...nor, not only...but also, as well as, together with
例如:
1) To study English well, we need both diligence and careful.
2) That horse is not only the youngest among the five, but also runs the fastest.
(4)表示因果关系,连接的双方,互为因果,或者前因后果,或者前果后因。常用的连词有:for, so, therefore
例如:
1) It must have rained, for the ground is wet.
2) You are in the right, therefore they should support you.
实战演练
一、例题选讲
例1 he did not know much English,he got out his dictionary and looked up the word.
A. As B. For
C. Since D. Because
答案: A
提示: for,because和as虽皆可作连词用,表示“因为”,但用法有些区别。for引导的分句总是置于另一分句之后,常常对前一分句加以解释,两个分句之间,总是用逗号分开。because引导的原因状语从句时,往往以why问句,语气比较重,传递的往往是对方未了解的新信息。as引导的原因状语从句时,往往是对方也知道的信息。本句是他拿出词典查,显然,“他知道的 英语单词 不多”,这是明摆着的事,所以用as最恰当。
例2 you dont feel well,youd better stay at home.
A. Because B. Since/If
C. For D. Now
答案: B
例3 I don’t know he has received the package.
A. if B. when
C. what D. how many
答案: A
提示: if表示是否,when不能与现在完成时连用。
例4 Come tomorrow, I will give it to you.
A. or B. and
C. though D. if
答案: B
提示: and在此处解释为“那么”,表示递进关系。
例5 The teacher his students likes football.
A. and B. as well as
C. and also D. also
答案: B
提示: as well as 连接两个主语用靠前原则。
例6 We were having lunch some one knocked at the door.
A. as B. a soon as
C. when D. while
答案: C
填入适当的连词。
1. My brother is ill, ________ I have to stay at home.
2. The film must be very interesting, ________ many people are buying tickets in line.
3. My computer is new, ________ it is too expensive.
4. She felt hungry, ________ she didn’t have breakfast.
5. A customer came in, ________ I stopped my work.
6. He has a lot of money, ________ he spends little.
7. Come here early, ________ you can’t see him.
8. Take some medicine, ________ you will feel better.
9. There are a lot of stories about the UFOs, _______ no one knows whether they are true or not.
10.Put on your coat, ________ you will catch cold.
11.She got a “C” in English test, ________ she had tried his best.
12.My little cousin can _________ read ________ write.
13.Please call me _______ you need my help.
14._____you have a few more days’ rest, you’ll feel better.
15._____ my father ______ my mother is a doctor. They are teachers.
16.I really don’t know ______ it is going to rain or not this afternoon.
17.You may ______do it yourself ________ leave it to me.
18.Hurry up, ______ you’ll miss the next bus.
19.Li Ming was a brave boy, ______ he had one shortcoming.
20.It’s a fine day, ____ we have a wonderful time.
21.I don’t know _______ she can speak Russian or not.
22.We haven’t decided _____ and ______ we shall meet next time.
23.That’s ______ they didn’t pass the exam.
24._______ you are right, _____ he is.
25.He ______ _____ read the book ______ _______ remembered what he read.
参考答案
1.so 2.for 3.besides 4.as 5.so 6.but 7.or 8.and 9.but 10.or
11.though 12.neither, nor 13.if/when 14.if 15.neither, nor 16.whether
17.either, or 18.or 19.though 20. 21.whether 22. 23.why
英语连词用法大全相关 文章 :
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2. 英语连词基础语法及用法
3. 英语中常见的连词和用法讲解
4. 中学英语连词的用法
5. 英语语法:连词的用法和从属连词
6. 连词英语语法知识点汇总
7. nevertheless的用法总结大全
8. 中考英语词汇知识点:连词的定义及用法
9. 英语连词学习的注意要点
10. 初中英语语法:连词and和or的用法和区别
人教版初中英语知识点总结
英语是一门活的语言,光在课堂上听教师讲授是远远不够的,这就要靠我们透过多种管道学习。下面是我为大家整理的人教版初中英语知识点,欢迎大家阅读学习!
初中英语知识点 总结
连词及其用法
1.连词是一种虚词,它不能独立担任 句子 成分而只起连接词与词, 短语 与短语以及句与句的作用。
2.常见的连词
and(和,与;而且;于是,然后;因此)
but(但是;通常用not...but...不是...而是...;可是,然而;表示惊讶,不同意等--喔,哇;用来加强语句重复部分的语气--一定;用来引入新话题--那就;常用于否定句--而不,若不;用于含doubt,question等字的否定句中相当于that--对于)
or(或者,还是;用于否定句或问句--也不;否则,要不然;也就是说,换言之)
nor(用在neither之后--也不;用在no,not,never之后--也不;用在句首,句子需倒装--也不)
so(因此,所以;因而,从而)
yet(可是,却,然而)
for(因为,由于)
both…and(既...又...;不但...而且)
not only…but also(不但,而且)
either…or(不是...就是;要么...要么)
neither…nor(既不...也不...)
3.并列连词:
①and 与or;②both …and两者都;③not only…but ...as well as=not only...butalso不但…而且;④neither…nor意思为"既不……也不……"谓语动词采用就近原则,与nor后的词保持一致。
4.转折或对比连词
①but表示转折,while表示对比。②not…but…意思为"不是……而是……"。
宾语从句
1.宾语从句,是名词性从句的一种。
在主从复合句中充当宾语,位于及物动词、介词或复合谓语之后的从句称为宾语从句。宾语从句分为三类:动词的宾语从句,介词的宾语从句和形容词的宾语从句。
2.宾语从句的引导词有三种:
(1)以that引导的宾语从句:
that引导的宾语从句一般都是由陈述句充当,引导词that没有实际意义,不在从句中作任何成分,that可以省略,而且从句成分齐全,句意完整。
Do you think (that) it will rain? 你认为天会下雨吗?
He said (that) he could come on time.他说他会准时来的。
(2)以whether或if引导的宾语从句:
从属连词if,whether引导的名词从句是由一般疑问句或选择疑问句转化而来的,变成从句后,语序由原来的倒装语序变成陈述语序。whether和if意为“是否”。
Let us know whether / if you can finish the work before Friday.
请让我们知道你是否能在星期五以前把工作做完。
I don’t care whether you like the story or not.
我不在乎你是否喜欢这个 故事 。
(3)特殊疑问词what/ when/ where/ who等引导的宾语从句:
此类宾语从句原来是特殊疑问句,变成宾语从句后要用陈述语序,由wh-开头的疑问词引导。包括who, whom, whose, what,which等连接代词和where, when, how, why等连接副词,这些引导词有各自的意思,在从句中要作相应的成分,不能省略。例如:
Could you tell me which gate we have to go to?
请问我们得走哪个门?
He didn’t tell me how long he would stay here.
他没有告诉我他要在这里呆多长时间。
初中英语知识非谓语动词的主动形式表被动意义
在某些句型中可用动名词和不定式的主动形式表被动意义 。
1. 在need,want,require, bear等词的后面,动名词用主动形式表示被动意义,其含义相当于动词不定式的被动形式。
例:The house needs repairing(to be repaired).这房子需要 修理 。
2. 形容词worth后面跟动名词的主动形式表示被动含义,但不能跟动词不定式;而worthy后面跟动词不定式的被动形式。
例:The picture-book is well worth reading.(=The picture-book is very worthy to be read.)
3. 动词不定式在名词后面作定语,不定式和名词之间有动宾关系时,又和句中另一名词或代词构成主谓关系, 不定式的主动形式表示被动含义。
例: I have a lot of things to do this afternoon. (to do与things是动宾关系,与I是主谓关系。)
试比较:I’ll go to the post office. Do you have a letter to be posted? ( 此处用不定式的被动语态作定语表明you不是post动作的执行者。)
4.在某些“形容词+不定式”做表语或宾语补足语的结构中,句子的主语或宾语又是动词不定式的逻辑宾语时,这时常用不定式的主动形式表达被动意义。
这些形容词有nice,easy,fit,hard,difficult,important,impossible,pleasant,interesting等。
例:This problem is difficult to work out .(可看作to work out省略了for me).
5. 在too… to…结构中,不定式前面可加逻辑主语,所以应用主动形式表示被动意义。
例:This book is too expensive (for me) to buy.
6. 在there be…句型中,当动词不定式修饰名词作定语时,不定式用主动式作定语,重点在人,用被动形式作定语,重点在物。
例:There is no time to lose(to be lost).(用 to lose可看成for us to lose;用to be lost,谁 lost time不明确。)
7. 在be to do结构中的一些不定式通常应用主动表主动,被动表被动。然而,由于古英语的影响,下列动词rent,blame,let等仍用不定式的主动形式表示被动意义。
例: Who is to blame for starting the fire?
九年级英语 知识点所谓垂悬结构(The DanglingConstruction)就是一个句子成分,如分词短语,不定式动词短语等,找不到被修饰的主语或被修饰的对象不合逻辑。垂悬结构是种错误的句法,应该避免。
下面是三种常见的垂悬结构及其改正 方法 :
⒈垂悬分词或分词短语,如:
①Climbing up the hill, several boars were seen.
这句子里的现在分词短语(present participial phrase)修饰主语“several boars”是错的;改正方法有二:
(a)确定是逻辑主语,使句子变成“Climbing up the hill, the explorers saw severalboars.”
(b)把现在分词短语扩大为副词分句(也称状语从句):“When the explorers climbed up the hill, they sawseveral boars/ several boars were seen.”
⒉垂悬副词短语,如:
After putting a shrimp on the hook, the fish began to bite.
这句的副词短语(adverb phrase)和主语“the fish”有什么逻辑关系呢?真正的逻辑主语应该是“the fisherman”或“theangler”才对。改正方法:
(a) After putting a shrimp on the hook, the fisherman found that the fishbegan to bite.
(b) After the fisherman had put a shrimp on the hook, the fish began tobite.
⒊垂悬不定式动词短语,如:
To write well, a lot of practice is needed.
To be a loyal employee, a sense of belonging is a must.
这两个句子的不定式动词短语(infinitive phrases)并不能修饰“practice”和“a sense ofbelonging”,真正的主语必须是“ 人”,如:
(a) To write well, one needs a lot of practice/a person has to practise alot.
(b) To be a loyal employee, he or she must have a sense of belonging.
上述三类垂悬结构中,第一类发生的频率,必须注意。但是在下列三种情况下,分词短语是对的,它们并非垂悬结构:
第一,独立结构(The Absolute Construction,见3月7日《中英合谈》)中的分词短语有自己的主语,所以不是垂悬结构。例如:
Such being the case, we can go home now./……it is not wrong to call it aday.
第二,当分词含有介词或连词性质时,它不需要逻辑主语,所以没有垂悬问题存在。例如:
Owing to a lack of funds, the project has to be discontinued.
Provided that there is sufficient time, everyone can do the job better.
第三,当分词短语是用来表示说话者的态度或意见时,也不需要逻辑主语,因此也不存在着垂悬问题。例如:
Judging from his facial look, the news must have been terrible.
Taken as a whole, there is nothing wrong with the logic behind thatidea.
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