初中英语语法：连接词辨析（共7篇）由网友“nihaomaj”投稿提供，下面是小编为大家整理后的初中英语语法：连接词辨析，欢迎阅读与收藏。
篇1：初中英语语法：连接词辨析
初中英语语法：连接词辨析
对于连接词辨析知识的讲解内容，同学们好好学习吧。
连接词辨析
(1) because、as、since、for的用法：because(因为)表示原因的语气最强,常表示必然的因果关系,从句一般放在主句后面；另外,回答why的问句只能用because. as(因为)表示一般的因果关系,语气比because弱,说明比较明显的原因,它引导的从句可以放在句首也可以放在句尾。since(既然)表示对方已经知道、无需加以说明的原因或事实。for(因为)是并列连词,语气较弱,用来补充说明理由或提供一种解释。如：He is not at school today because he is seriously ill.（他今天没有上学因为他病得厉害）/ As all of you have got here, now, let’s go to the zoo.（既然大伙儿都到了我们就去动物园吧）/ I will ask Lin Tao to go with me since you are very busy.（既然你很忙我就叫林涛和我一起去吧）/ We must be off now for the match starts at 7：00.（我们得走了因为比赛在七点开始）
(2)if、whether的区别：表示“是否”时,if和whether同义,引导宾语从句,另外,whether还可以引导主语从句、表语从句(以及同位语从句)等名词性从句或者让步状语从句；而if还可以表示“如果”,引导条件状语从句,(主句与从句遵循主将从现的原则)。如：I don’t know if/whether he will arrive on time.（我不知道他是不是会按时到达）/ I will ring you up if he arrives on time.（如果他按时到达我会给你打电话的）
[注意]下列情况只能用whether不能用if：①引导主语从句,②引导表语从句,③引导从句作介词宾语,④引导不定式短语,⑤引导让步状语从句,⑥在动词discuss之后,⑦在wonder / not sure之后,⑧在if与whether含义易混时。如：Whether it is a fine day next Sunday is still a question.（下个星期天是不是个好天还是个问题）(引导主语从句) / Please ask him whether to go there with a raincoat or not.（请问一下带不带雨衣去那儿）(作动词的宾语) / Hainan is the place to be, whether it’s summer or winter.（海南是个该去的地方无论冬夏）(引导让步状语从句)/ Please let me know whether you need my help.（请告诉我你是否需要我的帮助）(引导宾语从句)(如果换成if则还可能表示“如果你需要我的帮助请告知”)
(3)while、when、as的用法区别：while常表示一个较长的动作,它引导的从句动作与主句的动作是同时发生的、是平行的；when可以表示较短的动作也可以表示较长的动作,主句和从句的'动作可以同时发生也可以先后发生；as与上两词同义,可替换while和when, 表示主句和从句的动作同时发生,常译为“一边……一边……”。如：Please do not trouble me while I am writing my homework.（我写作业时请不要打扰我）/ I’ll go home when I have finished my job.（我干完了活儿就回去）/ They were running quickly across the road when they heard the sound of a truck coming.（他们正快速地穿过马路忽然听到了卡车开来的声音）/ As we walked in the dark street, we sang songs and talked loudly.（当我们在黑洞洞的街上走路时我们高声地唱歌说话）
(4)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）
(5)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）
(6)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）
通过上面对连接词辨析知识的讲解学习，同学们都能很好的掌握了吧，相信同学们会考出好成绩的。
篇2：英语语法词语辨析
also / too / either
also 意思是也，是比too较为正式的.用语，通常用于肯定句中，一般靠近动词。例如。
He also asked to go．他也要求去。
I also went. 我也去的。
He came also. 他也来的。
too 意思也是也，是最普通的用语，常与also通用，但不如also正式，在口语中它用得更多。too通常放有句
末，但有时为了不致引起含糊不清的感觉，把它紧放在所修饰的词之后。它也通常用于肯定句中。例如：
I went there, too．我也到那儿去的。
Mother was angry too．母亲也发怒了。
I, too, have been to Paris．我也去过巴黎。（这里明确表示人家去过巴黎，我也去过。而不是除了去过某地以外，还去过巴黎。）
either 意思也是也。它用于否定句中，而且要放在句末。例如：
If you do not go，I shall not either．倘若你不去，我也不去。
I have not seen him either．我也没有看见过他。
I haven't been there yet，either．我也没有去过那儿。
篇3：英语语法代词讲解辨析
英语语法代词讲解：人称代词的用法
1)人称代词的主格在句子中作主语或主语补语，例如：
John waited a while but eventually he went home.
约翰等了一会儿，最后他回家了。
John hoped the passenger would be Mary and indeed it was she.
约翰希望那位乘客是玛丽，还真是她。
说明：在复合句中，如果主句和从句主语相同，代词主语要用在从句中，名词主语用在主句中，例如：
When he arrived, John went straight to the bank.
约翰一到就直接去银行了。
2)人称代词的宾格在句子中作宾语或介词宾语，但在口语中也能作主语补语，第一人称在省略句中，还可以作主语，例如：
I saw her with them, at least, I thought it was her.
我看到她和他们在一起，至少我认为是她。(her做宾 语，them做介词宾语，her做主语补语)
a. -- Who broke the vase? --谁打碎了花瓶?
b. -- Me. --我。(me做主语补语= It's me.)
说明：在上面两例句中，her和me分别作主语补语。现代英语中多用宾格，在正式文体中这里应为she和I。
英语语法代词讲解：代词的指代问题
1)不定代词 anybody，everybody，nobody，anyone， someone， everyone，no one， 及whoever和person在正式场合使用时，可用he, his, him代替。
Nobody came, did he? 谁也没来，是吗?
2)动物名词的指代一般用it或they代替，有时也用he, she，带有亲切的感情色彩。
Give the cat some food. She is hungry. 给这猫一些吃的。她饿了。
3)指代车或国家，船舶的名词，含感情色彩时常用she。
英语语法代词讲解：人称代词之主、宾格的替换
1) 宾格代替主格
a.在简短对话中，当人称代词单独使用或在not 后，多用宾语。
---- I like English. --我喜欢英语。
---- Me too. --我也喜欢。
---- Have more wine? --再来点酒喝吗?
---- Not me. --我可不要了。
b.在表示比较的非正式的文体中，常用宾格代替主格。 但如果比较状语的谓语保留，则主语只能用主格。
He is taller than I/me.
He is taller than I am.
2) 主格代替宾格
a. 在介词but，except 后，有时可用主格代替宾格。
b. 在电话用语中常用主格。
---- I wish to speak to Mary. --我想和玛丽通话。
---- This is she. --我就是玛丽。
注意：在动词be 或to be 后的人称代词视其前面的名词或代词而定。
I thought it was she. 我以为是她。(主格----主格)
I thought it to be her. (宾格----宾格)
I was taken to be she. 我被当成了她。 (主格----主格)
They took me to be her. 他们把我当成了她。 (宾格----宾格)
看过英语语法代词讲解的人还看了：
1.最基本的英语语法
2.英语语法大全上下
3.关于英语语法的英语作文
4.英语语法知识
5.英语语法大全
6.日常交际常用英语语法
篇4：高中英语语法-词语辨析
高中英语语法-词语辨析
after / behind
这两个词都可以表示时间或地点，但各有其不同的涵义。
after 表示时间时，意思是在以后，它表示地点时，意思是在后面，通常指次序的.先后。例如：
He came after ten o'lock．他十点钟以后来的。
Two days after his arrival，I called on him. 在他到达两天以后，我拜访了他。
He left on Monday and returned two days after．他星期一走的，两天以后就回来了。
Against' comes after again' in this dictionary 这本辞典中，against'排在again之后。
After you！请！（您先走！）
behind 表示地点时，意思是在或跟在后面、在或跟在后面，着重指位置的前后。它有时也表示时间，指按照一定的时刻而迟了的意思。例如：
The garden is behind the house．花园在房子后面。
He stood behind me．他站在我背后。
Walk close behind me．紧跟在我后面走。
The dog was running behind．狗跟在后面跑。
The train was behind time．火车误点了。
You are two hours behind．你迟了两小时。
篇5：高中英语语法词语辨析
able / capable
able和capable均用于谈及某人能够做某事。
若说someone is able to do something意为某人能做某事，因为有知识或技能，或具备做该事的条件。
Breslow wondered if he could be able to climb over the rail. 布雷斯洛不知道是否能爬过栏杆。
They must be able to use their profiles for new investment. 他们必须能把利润用于新的投资。
注意，过去时表明某人实际上已经做了某事。
We were able to reduce costs. 我们能够降低成本。
若说someone is capable of doing something 指某人如有需要的话，是具有做某事的知识或技能的，或指他有可能会做某事。
Workers are perfectly capable of running the organizations which employ them. 工人完全有能力经营受雇的机构。
She was quite capable of dropping off to sleep. 她往往会不知不觉入睡。
也可说to be capable of a feeling or an action，意为具有某种感情，或会做得出某事的。
I think he's capable of loyalty and seriousness. 我想他会忠诚，认真。
Bowman could not not believe him capable of murder. 鲍曼不相信他会杀人。
在谈及汽车或机器等的性能时，通常用capable of。
... water turbines, which are capable of producing more economical electricity. ……能降低发电成本的水动涡轮机。
The car was capable of 110 miles per hour. 这车每小时能跑一百一十英里。
若把某人描述为able或capable，其意为某人聪明能干。两词用作这一意义时，基本相同。
... the able and methodical King Charles V of France. ……能干、有条理的法国国王查理五世。
This very able man totally failed to see the possibilities of the telephone. 这位非常能干的人根本没看到电话的潜在价值。
Newborn babies are more capable than was once thought. 新生婴儿的能力比以前人们想象的要强得多。
Well, you certainly have a capable gardener there. 哟，你的园丁一定能干。
高中英语语法-高中英语语法重点难点回顾之三
高中英语语法重点难点回顾之三
little,no,some, 等修饰。
I have read all the book (that) you gave me.
4)先行词被 the only, the very, the same, the last 修饰时。
He is the only person that I want to talk to.
5)先行词既有人又有物时。They talked of things and persons that they remembered in the school.
先行词是表示地点时,要根据从句的谓语动词是及物的还是不及物的。如果是及物的就用that(which),否则用where。
This is the house where he lived last year.
This is the house that (which) he visited last year.
用no sooner…than和hardly…when引导的从句表示“刚……就……”。主句中的动词一般用过去完成时,从句用过去时;而且主句一般倒装,把助动词had提到前面。例如：Hardly had I entered the room when I heard a loud noise.
代词作主语时,主谓语序不变。Here it is. Here he comes.
当句首状语为表示地点的介词词组时也常常引起全部倒装。
South of the city lies a big steel factory.
From the valley came a frightening sound.
表语置于句首时,倒装结构为“表语+连系动词+主语”。
Present at the meeting were Professor White,Professor Smith and many other guests.
Gone are the days when they could do what they liked to the Chinese people.
Among the goods are Christmas trees, flowers, candles and toys.
He has been to Beijing. So have I.
Li Wei can’t answer the question. Neither can I.
部分倒装
用于省略if的虚拟条件状语从句。Had you reviewed your lessons,you might have passed the examination.
3.用于“形容词(或名词、动词)+as(though)引导的让步状语从句中。例如：Pretty as she is ,she is not clever.
Try as he would, he might fail again.
如果从句的表语是名词,其名词前不加任何冠词。
Child as he was, he had to make a living.
用于no sooner…than…,hardly…when和not until的句型中。Not until the teacher came did he finish his homework.
用于never,hardly,seldom,scarcely, barely, little,often,at no time,not only,not once等词开头的句子。
Never shall I do this again.
Little did he know who the woman was.
6.用于以only开头的句子(only修饰副词,介词短语或状语从句时)。Only this afternoon did I finish the novel.
Only in this way can you master English.
Only when he told me did I realize what trouble he was in.
如果only后面的词组不是状语,则不用倒装。
Only Wang Ling knows this.
用于某些表示祝愿的句子。May you succeed!祝你成功!
stomach－stomachs，a German－three Germans,
an American－two Americans，man cook - men cooks;
papers 报纸, 文件 manners礼貌 drinks饮料
in a word 简言之?in other words 换句话说
have words with 与某人吵嘴
have a few words (a word) with sb.与某人说几句话
The crowd were running for their lives．
某些集体名词, 如people, police, cattle等, 只当复数看待, 谓语动词必须用复数。The police are searching for him.
篇6：高中英语语法词语辨析
d that she (should) stay in bed for a few days.
He demanded that we (should) start right away.
作advice,idea,order,demand,plan,proposal,suggestion,request等名词的表语从句和同位语从句,其谓语动词要用虚拟语气的结构“(should)＋动词原形”。例如：We all agreed to his suggestion that we(should) go to Beijing for sightseeing.
My idea is that we (should) do exercises first.
在feel, hear, notice, observe, see, watch, have, let, make等词后的补足语中,不定式不带to。但是这些句子如果变成被动结构时,就必须带to。例如：I often hear him sing the song.
He is often heard to sing the song.
注意：不定式动词在介词but, except, besides后面时,如果这些介词之前有行为动词do的各种形式,那么,这些介词后的不定式不带to,否则要带to.如：
She could do nothing but cry.
What do you like to do besides swim?
I have no choice but to go.
作定语的不定式如果是不及物动词,或者不定式所修饰的名词或代词是不定式动作的地点、工具等,不定式后面须有相应的介词。例如：He is looking for a room to live in.
There is nothing to worry about.
Please give me a knife to cut with.
There / It is no use/ good/ not any use/ good/ useless doing sth.
动词后可以用动名词作宾语,但不能用不定式:
admit,appreciate, avoid, consider, delay, enjoy, escape, excuse, feel like, finish, forgive, give up, imagine, include, keep, mention,mind,miss,practise, put off, resist, risk, suggest, can’t help, can’t stand(无法忍受)等。
I tried not to go there.(我设法不去那里。)
I tried doing it again.(我试着又干了一次。)]
mean to do 有意... mean doing意味着...
I mean to come early today.(我打算今天早些来。)
Missing the train means waiting for another hour.
(误了这趟火车意味着再等一个小时。)
allow, advise, forbid, permit
We don’t allow smoking here. We don’t allow students to smoke.
动词need,require,want作“需要”解,其后跟动词作它的宾语时,若表示的含义是被动的,必须用动名词,或不定式的被动式。例如：
The window needs(requires, wants)cleaning(to be cleaned).
在短语devote to, look forward to, pay attention to, stick to, be used to, object to,thank you for, excuse me for 等后的动词也必须用动名词形式：I look forward to hearing from you soon.
Badly polluted, the water cannot be drunk.(原因)
Being written in haste, the composition is full of mistakes.
(原因,强调写的.过程,故应用现在分词一般被动式)
Having been deserted by his guide, he couldn’t find his way through the jungle.(为了强调已完成的动作)
Asked to stay, I couldn’t very well refuse.
这里 asked 可能意味着 having been asked, 也可能意味着when/since I was asked, 但用了 having been asked 就不会有歧义。
下面句中过去分词表示的时间与谓语动词所表示的时间相同，所以不能代之以强调先于谓语动词的现在分词完成被动式。例如：
Covered with confusion, I left the room.我很窘地离开了房间。
United, we stand; divided, we fall. 团结则存，分裂则亡。
He used to live in London, use(d)n’t he /didn’t he?
There used to be a cinema here before the war, use(d)n’t there /didn’t there?
Such things ought not to be allowed, ought they?
He ought to be punished, oughtn’t he?
但在正式文体中,用ought we not形式。例如:
We ought to go, ought we not?或We ought to go ,should we not?
含有情态动词must的句子表示推则,作“想必”解时,疑问部分不可用mustn’t。若前句强调对现在情况的推测,疑问部分用aren’t(isn’t)十主语,例如：You must be tired,aren’t you?若陈述部分的must表示“有必要”时,附加疑问句部分则用needn’t。例如：You must go home right now, needn’t you?
当mustn’t 表示禁止时,附加疑问部分一般用must。如：
You mustn’t walk on grass, must you?
前句谓语动词是must have＋过去分词时,若前句强调对过去情况的推测(一般有过去时间状语),疑问部分的谓语动词用didn’t＋主语;若前句强调动作的完成,疑问部分的谓语动词用haven’t(hasn’t)＋主语, 例如：
He must have met her yesterday, didn’t he?
You must have seen the film, haven’t you?
陈述句谓语部分出现否定词缀时(前缀或后缀),疑问部分仍用否定结构。例如:He is unfit for his office, isn’t he?
如果陈述部分包含有no, never, hardly, seldom, few, little,nowhere, nothing等否定或半否定词时,疑问部分用肯定形式。例如：He is hardly 14 years old,is he?
如果陈述部分的主语为everyone,someone,no one等不定代词,其疑问部分的主语可用he,也可用they。
Everyone knows his job, doesn’t he?
Everyone knows their job,don’t they?
No one was hurt,were they?
I’m late, aren’t I?
One can’t be too careful,can one(you)?
Have a cup of tea, will you?
Let’s go there,shall we? Let us go there,will you?
同位语从句跟在名词后面,进一步说明该名词的具体内容。引导同位语从句的名词主要有fact, news, promise, idea, truth等。连接词用that (不用which)及连接副词how, when, where, why等。例如：
His delay is due to the fact that the car went wrong halfway.
The news that our team has won the match is true.
She asked the reason why there was a delay.
关联词只能用whether不能用if表示“是否”的情况如下:
A)在表语从句和同位语从句中。例如：
The question is whether the film is worth seeing.
The news whether our team has won the match is unknown.
B)在主语从句中,只有用it作形式主语时,whether和if都能引导主语从句,否则,也只能用whether。例如：
Whether we shall attend the meeting hasn’t been decided yet.
It hasn’t been decided whether(if)we shall attend the meeting.
C)在介词之后。(介词往往可以省略)例如：
It all depends (on) whether they will support us.
D)后面直接跟动词不定式时。
He doesn’t know whether to stay or not.
E)后面紧接or not 时。
We didn’t know whether or not she was ready.
F)引导让步状语从句,只能用whether。
Whether you like it or not, you must do it well.
G)用if会引起歧义时。例如：Please let me know if you like it.
该句有两个意思：“请告诉我你是否喜欢”。
或“如果你喜欢,请告诉我。”用了whether就可以避免。
在下面几种情况下必须用“that”引导定语从句：
1)先行词是不定代词：all,few,little, much,something,nothing,anything等。All that we have to do is to practise every day.
2)先行词被序数词或形容词最高级所修饰。
The first lesson that I learned will never be forgotten.
3)先行词被all,any,every, each, few,
高中英语语法-高中英语语法重点难点回顾之一
高中英语语法重点难点回顾之一
主谓一致常考难题：
Five minutes is enough to do this exercise．
Each boy and each girl wants to serve the people in future．
More than one student has seen the film.
Many a ship has been damaged in the storm.
More members than one are against your plan.
一些有两个部分构成的名词表示衣物或工具作主语时, 谓语通常用复数形式：glasses, clothes, trousers, shoes, compasses, chopsticks, scissors等。
但如果主语用a kind of , a pair of , a series of等加名词构成时, 谓语动词一般用单数形式。A pair of shoes was on the desk．
并列主语如果指的是同一个人、同一事物或同一概念时, 谓语动词用单数形式, 这时and后面的名词没有冠词。例如:
Truth and honesty is the best policy．
The girl’s teacher and friend is a young doctor．
To love and to be loved is the great happiness.
Going to bed early and getting up early is a good habit.
A knife and fork is on the table.
当主语后面跟有as well as, as much as , no less than, along with, with, like, rather than, together with, but, except, besides, including, in addition to等引导的词组时, 其谓语动词的单、复数按主语的单、复数而定。例如:
The teacher as well as the students was excited．
The room with its furniture was rented．
A (great) number of修饰可数复数名词, 谓语动词用复数; a great deal of,a large amount of 修饰不可数名词, 其短语作主语时, 谓语动词用单数。
关系代词who, that, which等在定语从句中作主语时, 其谓语动词的数应与句中先行词的数一致。例如:
Those who want to go please sign your names here．
Some of the energy that is used by man comes from the sun．
季节、月份、星期、节日、假日、一日三餐、学科名称，球类、棋类名词名称前一般不加冠词。
1/2 one(a) half 1/4 one(a) quarter
形容词的顺序：
系动词be，grow，get，become，feel，appear，prove，seem，look，keep，smell，taste，sound，turn，remain限定词+数量形容词(序数词在前，基数词在后)+性状形容词+大小、长短、高低等形体+新旧+颜色+国藉+材料
Those three beautiful large square old brown wood table
某些以a-开首的形容词例如：afraid，alike，alone，asleep，awake, alive 等只能作表语,不能作定语。
某些以-ly结尾的词是形容词而不是副词：friendly，lively， lovely，lonely，likely，deadly，silly，orderly, timely等。
1)close接近地 closely仔细地，密切地
2)free 免费地 freely自由地,无拘束地
3)hard努力地 hardly几乎不
4)late 晚，迟 lately近来
5)most 极,非常 mostly主要地
6)wide广阔地，充分地 widely广泛地
7)high高 highly高度地，非常地
8)deep深，迟 deeply抽象意义的“深”
9)loud大声地 loudly大声地(含有喧闹的意思)
10)near邻近nearly几乎
bad/ill,badly worse worst little less least
表示一方不及另一方时，用“less＋原级＋than”的结构表示：This room is less beautiful than that one．
表示一方超过另一方的程度或数量时，可在比较级前加表示程度的状语，如：even，a lot，a bit，a little，still，much，far, yet, by far等修饰：He works even harder than before．
注意:by far 通常用于强调最高级。用于比较级时,一般放在比较级的后面, 如放在前面,应在二者中间加“the”。
He is taller by far than his brother.
He is by far the taller of the two brothers.
某些以-or结尾的形容词进行比较时，用to代替than。superior，junior，senior等。
He is superior to Mr Wang in mathematics．
在比较从句中为了避免重复通常用that(those)，one(ones)代替前面出现的名词。that指物，one既可指人，也可指物。that可代替可数名词单数和不可数名词，而one只能代替可数名词。例如：
The book on the table is more interesting than that on the desk．
A box made of iron is stronger than one made of wood．
表示倍数的比较级有如下几种句型:
A is three (four,etc.) times the size (height, length, width,etc) of B.
The new building is four times the size (the height) of the old one.
这座新楼是那座旧楼的四倍大(四倍高)。［高三倍］
A is three (four, etc.) times as big (high, long, wide, etc.) as B.
Asia is four times as large as Europe.亚洲是欧洲的四倍大。
A is three (four,etc.) times bigger (higher, longer, wider) than B.
例如:Your school is three times bigger than ours.
你们的学校比我们的学校大三倍。
表示两倍可以用 twice 或 double。
表示“最高程度”的形容词，如excellent，extreme，perfect等，没有最高级，也不能用比较级。
如果复数名词前有many、few，不可数名词前有much、little等表示量的形容词时，该用so而不用such。如：
I’ve had so many falls that I’m black and blue all over.
Mr White got so little money a month that he could hardly keep body and soul together.
但little不表示数量而表示“小”的意思时,仍用such。如:
They are such little children that the they cannot clean the house by themselves.
6)almost与nearly
在very, pretty, not后用nearly, 不用almost。例如：
I’m not nearly ready.
在any, no, none, never前用almost, 不用nearly。例如：
I almost never see her.
need 表示“需要”或“必须”,作情态动词时,仅用于否定句或疑问句中。在肯定句中一般用must, have to, ought to或should 代替。例如：
You needn’t come so early.
Need I finish the work today? －－Yes, you must.
注意：needn’t have done“表示本来不必做某事而实际上做了某事”。例如：You needn’t have waited for me.
“should have done”表示应该做到而实际上没有做到。
You should have started earlier.
“ought to have done”表示过去应做某事而实际未做。
You ought to have helped him (but you didn’t)
书报的标题,小说等情节介绍常用一般现在时。
表示感觉,愿望和状态的某些动词如have, be, hear, see, like等词一般不用进行时。
有些动词形式上是主动结构,但表示被动的意思。常见的有可和 well, easily 等副词连用的不及物动词sell,wash,write,read,clean,cook等。例如：
The cloth washes well.这布很经洗。
The new product sells well.这新产品很畅销。
The pen writes well.这支笔很好写。
在动词 arrange,command, demand, desire,insist, order,propose, request, require, suggest等后面的宾语从句中用“(should)＋ 动词原形”(虚拟语气)例如：
We suggested that we (should) have a meeting.
We insisted that they (should) go with us.
The doctor ordere
高中英语语法-高中英语语法讲义5
高中英语语法讲义5
高考高频难词
1.alter v. 改变,改动,变更
2.burst vi.n. 突然发生,爆裂
3.dispose vi. 除掉;处置;解决;处理(of)
4.blast n. 爆炸;气流 vi. 炸,炸掉
5.consume v. 消耗,耗尽
6.split v. 劈开;割裂;分裂 a.裂开的
7.spit v. 吐(唾液等);唾弃
8.spill v. 溢出,溅出,倒出
9.slip v. 滑动,滑落;忽略
10.slide v. 滑动,滑落 n. 滑动;幻灯片
11.bacteria n. 细菌
12.breed n. 种,品种 v. 繁殖,产仔
13.budget n. 预算 v. 编预算,作安排
14.candidate n. 候选人
15.campus n. 校园
16.liberal a. 慷慨的;丰富的;自由的
17.transform v. 转变,变革;变换
18.transmit v. 传播,播送;传递
19.transplant v. 移植
20.transport vt. 运输 n. 运输,运输工具
21.shift v. 转移;转动;转变
22.vary v. 变化,改变;使多样化
23.vanish vi. 消灭,不见
24.swallow v. 吞下,咽下 n. 燕子
25.suspicion n. 怀疑,疑心
26.suspicious a. 怀疑的,可疑的
27.mild a. 温暖的,暖和的;温柔的,味淡的
28.tender a. 温柔的;脆弱的
29.nuisance n. 妨害,讨厌(的人或事物)
30.insignificant a. 无意义的,无足轻重的
31.accelerate vt. 加速,促进
32.absolute a. 绝对的,无条件的;完全的
33.boundary n. 分界线,边界
34.brake n. 刹车,制动器 v. 刹住(车)
35.catalog n. 目录(册) v. 编目
36.vague a. 模糊的,不明确的
37.vain n. 徒劳,白费
38.extinct a. 绝灭的,熄灭的
39.extraordinary a. 不平常的,特别的,
40.extreme a. 极度的,极端的 n. 极端,过分
41.agent n. 代理人,代理商;动因,原因
42.alcohol n. 含酒精的饮料,酒精
43.appeal n./vi. 呼吁,恳求
44.appreciate vt. 重视,赏识,欣赏
45.approve v. 赞成,同意,批准
46.stimulate vt. 刺激,激励
47.acquire vt. 取得,获得;学到
48.accomplish vt .完成,到达;实行
49.network n. 网状物;电视网;网络
50.tide n. 潮汐;潮流
51.tidy a. 整洁的,整齐的
52.trace vt. 追踪,找到 n. 痕迹,踪迹
53.torture n./vt. 拷打,折磨
54.wander vi. 漫游,闲逛
55.wax n. 蜡
56.weave v. 织,编
57.preserve v. 保护,保存,保持,维持
61. abuse v. 滥用,虐待;谩骂
62. academic a. 学术的;;研究院的
63. academy n. (高等)专科院校;学会
64. battery n. 电池(组)
65. barrier n. 障碍;棚栏
66. cargo n. (船、飞机等装载的)货物
67. career n. 生涯,职业
68. vessel n. 船舶;容器,器皿;血管
69. vertical a. 垂直的
70. oblige v. 迫使,责成;使感激
71. obscure a. 阴暗,模糊
72. extent n. 程度,范围,大小,限度
73. exterior n. 外部,外表 a. 外部的,外表的
74. external a. 外部的,外表的,外面的
75. petrol n. 汽油
76. petroleum n. 石油
77. delay vt./n. 推迟,延误,耽搁
78. decay vi. 腐烂,腐朽
79. decent a. 像样的,体面的
80. route n. 路;路线;航线
81. ruin v. 毁坏,破坏 n. 毁灭,[pl.]废墟
82. sake n. 缘故,理由
83. satellite n. 卫星
84. scale n. 大小,规模;等级;刻度
85. temple n. 庙宇
86. tedious a. 乏味道,单调的,
87. tend vi.易于,趋向
88. tendency n.趋向,趋势
89. ultimate a. 最大的,最终的 n. 极端
90. undergo v. 经历,遭受
91. abundant a. 丰富的,充裕的,大量的
92. adopt v. 收养;采用;采纳
93. adapt vi. 适应,改编,改写 vt. 使适应
94. bachelor n. 学士,学士学位;单身汉
95. casual a. 偶然的,;临时的;非正式的
96. trap n. 陷阱,圈套 v. 设陷阱捕捉
97. vacant a. 空的,未占用的
98. vacuum n. 真空,真空吸尘器
99. oral a. 口头的,口述的,口的
100. optics n. (单、复数同形)光学
高中英语语法-高中英语语法讲义6
高中英语语法讲义6
101. organ n. 器官,风琴
102. excess n. 过分,过量,过剩
103. expel v. 驱逐,开除,赶出
104. expend v. 消费
105. expenditure n. 支出,消费;经费
106. expense n. 开销,费用
107. expensive a. 花钱多的;价格高贵的
108. expand v. 扩大,扩张;展开,膨胀
109. expansion n. 扩大,扩充;发展,膨胀
110. private a. 私人的,个人的
111. individual a. 个别的,单独的 n. 个人,个体
112. personal a. 个人的,私人的;亲自的
114. personnel [总称]人员员工人事部门
115. the Pacific Ocean 太平洋
116. the Atlantic Ocean 大西洋
117. the Arctic Ocean 北冰洋
118. the Antarctic Ocean 南冰洋
119. grant vt. 授予,同意,准予
119. grand a. 宏伟大,壮丽的,重大的
120. invade v. 侵入,侵略,侵袭
121. acid n. 酸,酸性物质 a. 酸的;尖刻的
122. acknowledge v. 承认;致谢
123. balcony n. 阳台
124. calculate vt. 计算,核算
125. calendar n. 日历,月历
126. optimistic a. 乐观
127. optional a. 可以任选的,非强制的
128. outstanding a. 杰出的,突出的,显着的
129. export n. 出口(物) v. 出口,输出
130. import n. 进口(物) v. 进口,输入
131. impose vt. 把...加强(on);采用,利用
132. religion n. 宗教,宗教信仰
133. religious a. 宗教的
134. victim n. 牺牲品,受害者
135. video n. 电视,视频 a. 电视的,录像的
136. videotape n. 录像磁带
v. 把...录在录像带上
137. offend v. 冒犯,触犯
138. bother v. 打搅,麻烦
139. interfere v. 干涉,干扰,妨碍
140. internal a. 内部的,国内的
141. beforehand ad. 预先,事先
142. racial a. 人种的种族的
143. radiation n. 放射物,辐射
144. radical a.根本的;激进的
145. range n. 幅度,范围
v. (在某范围内)变动
146. wonder n. 惊奇,奇迹
v. 想知道,对...感到疑惑
147. isolate vt. 使隔离,使孤立
148. issue n. 问题,争论点;
发行,(报刊)一期
149. hollow a. 空的,中空的,空虚道
150. hook n. 钩 vt. 钩住
151. adequate a. 适当地;足够
152. adhere vi. 粘附,附着;遵守,坚持
153. ban vt. 取缔,禁止
154. capture vt. 俘虏,捕获
155. valid a. 有效的,有根据的;正当的
156. valley n. 山谷,峡谷
157. consistent a. 坚固定 一致的
158. continuous a. 继续的,连续(不断)
159. continual a. 不断地,频繁的
160. explode v. 爆炸;爆发;激增
161. exploit v. 剥削;利用,开采
162. explore v. 勘探
163. explosion n. 爆炸;爆发;激增
164. explosive a. 爆炸的;极易引起争论的
165. remote a. 遥远的,偏僻的
166. removal n. 除去,消除
167. render vt. 使得,致使
167. render vt.呈递, 归还, 着色, 汇报, 致使, 放弃, 表演, 实施vi.给予补偿n.交纳, 粉刷, 打底
168. precaution n. 预防,防备,警惕
169. idle a. 懒散的,无所事事的
170. identify vt. 认出,鉴定
171. identify n. 身份;个性,特性
172. poverty n. 贫穷
173. resistant a. (to)抵抗的,
抗...的,耐...的
174. resolve vt. 解决;决定,决意
175. barrel n. 桶
176. bargain n. 便宜货 vi. 讨价还价
177. coarse a. 粗的,粗糙的,粗劣的
178. coach n. 教练;长途公共汽车
179. code n. 准则,法规,密码
180. coil n. 线圈 v. 卷,盘绕
181. adult n. 成年人
182. advertise v. 为...做广告
183. advertisement n. 广告
184. agency n. 代理商,经销商
185. focus v. (使)聚集
n. 焦点,中心,聚焦
186. forbid vt. 不许,禁止
187. debate n./v. 辩论,争论
188. debt n. 欠债
189. decade n. 十年
190. enclose vt. 围住;把...装入信封
191. encounter vt./n. 遭遇,遭到
192. globe n. 地球,世界;地球仪
193. global a. 全球的;总的
194. scan vt. 细看;扫描;浏览
195. scandal n. 丑事,丑闻
196. significance n. 意义;重要性
197. subsequent a. 随后的,后来的
198. virtue n. 美德,优点
199. virtual a. 实际上的,事实上的
200. orient vt. 使适应
(to,toward)使朝向 n. 东方
篇7：小升初英语语法辨析：方位介词
小升初英语语法辨析：方位介词
1. at, in, on
at 一般指小地方;in 一般指大地方或某个范围之内;on 往往表示“在某个物体的表面”。例如：
He arrived in Shanghai yesterday. 他昨天到上海。
They arrived at a small village before dark. 他们在天黑前到达一个小村庄。
There is a big hole in the wall. 墙上有个大洞。
The teacher hung a picture on the wall. 老师把一幅画挂在墙上。
2. over, above, on
over, on 和 above 都可表示“在……上面”，但具体含义不同。Over 表示位置高于某物，在某物的正上方，其反义词是under。above 也表示位置高于某物，但不一定在正上方，其反义词是below。On 指两个物体表面接触，一个在另一的上面。例如：
There is a bridge over the river. 河上有一座桥。
We flew above the clouds. 我们飞越云层。
They put some flowers on the teacher's desk. 他们把一些花放在讲桌上。
3. across, through
across 和 through 均可表示“从这一边到另一边”，但用法不同。Across 的含义与 on 有关，表示动作在某一物体的表面进行。Through 的含义与 in 有关，表示动作是在三维空间进行。例如：
The dog ran across the grass. 狗跑过草地。
The boy swam across the river. 那男孩游过河。
They walked through the forest. 他们穿过森林。
I pushed through the crowds. 我挤过人群。
4. in front of, in the front of
in front of 表示“在某人或某物的前面”，在某个范围以外;in the front of 表示“在……的'前部”，在某个范围以内。例如：
There are some tall trees in front of the building. 大楼前有一些高大的树。
The teacher is sitting in the front of the classroom. 老师坐在教室前面。
5. among, between
两者都含有“在……中间”的意思。 一般说法是：among 用于“三者或三者以上之间”，而 between 则用于“两者之间”。例如：
I bought three hundred eggs and there was not a single bad one among them. 我买了三百鸡蛋，里面一个坏的也没有。
What's the difference between Asian elephants and African elephants? 亚洲象与非洲象有什么不同?
不过这个定义过于简单。Oxford上对于两者的解释是：“Among” is used of people or things considered as a group. “Between” is used of people or things, either two in number or more than two considered individually.
1)among 除了表示多于两者之间的关系外，更重要是它表达了“在其中”的意思。究竟是多少人或事并不重要，因为他们/它们已经被视为一体。例如：
He stood among the crowd. 他站在人群中。
There is a thief among you. 你们中间有一个是小偷。
She divided the money among her three children. 她把钱分给了她的三个孩子。
2)Between 可用于“三者或三者以上之间”，指每个人或物与别的每个人或物分别发生联系，例如：
A treaty was signed between Great Britain, France and the United States. 英国同法国、美国分别有协定。
Ecuador lies between Columbia, Peru, and the Pacific Ocean. 厄瓜多尔位于哥伦比亚、秘鲁和太平洋之间。
3)Between 在表示“合作、协力”的意义时，其宾语不受所涉及到的个体数目的限制。例如：
The three children saved over a hundred pounds between them. 三个孩子一共赚了一百多英镑。
The three men tried to lift the box between them. 三个人一齐用力想把箱子抬起来。
Among 也有相同的用法：
They finished the work among themselves. 他们共同完成了这项工作。
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