英语语法大全 连词
小学英语语法--连词
小学英语语法--连词连词在英语句子中起到连接不同部分的作用，帮助表达逻辑关系。
以下是一些常见的小学英语中使用的连词。
1. 并列连词（Coordinating Conjunctions）1.1 and- 用于连接两个相似的事物或想法，表示并列关系。
- 例句：I like apples and bananas.1.2 but- 用于表示转折关系或相反的事物或想法。
- 例句：She is tired, but she wants to keep going.1.3 or- 用于表示选择关系，表达两个或多个选项中的一个。
- 例句：Do you want an apple or a banana?2. 递进连词（Additive Conjunctions）2.1 also- 用于添加类似的事物或想法。
- 例句：She speaks English, and she also speaks French.2.2 furthermore- 用于提供更多信息或进一步解释。
- 例句：He is good at math. Furthermore, he excels in science.3. 转折连词（Concessive Conjunctions）3.1 although- 用于表示尽管某个条件存在，但结果与之相反。
- 例句：Although it was raining, we still went outside.3.2 however- 用于表示对前面说法的转折或相反观点。
- 例句：I wanted to go to the concert; however, I couldn't find tickets.4. 原因连词（Causal Conjunctions）4.1 because- 用于表示原因或解释。
- 例句：He couldn't go to the party because he was sick.4.2 so- 用于表达前因后果的关系。
英语语法之简述连词
简述连词一：等立连词1．表并列and/ both… and…/ not only …but (also)…/ neither … nor…/ as well as He and I __________(attend) the meeting.Both he and I _______(attend) the meeting.Not only he but also I ______ the meeting.Neither I nor he ________ the meeting.He as well as I _______ the meeting.2. 表转折but, while “而“表对比，yet”而，然而，可是“however 可是，然而，（后用逗号分开）still 然而，还是，还Jack is clever, ______ his brother is stupid.It is very good, but/ still it can be better.and (yet)however,3. 表选择or / or else/ otherwise 否则，要不然either… or…或…或，不是…就是whether… or…无论是…还是You can come _____ today ______ tomorrow.Hurry up, _____ you will be late for class.I don’t mind _____ you ____ he attends the meeting.4. 表因果for因为（不放在句首）/ then 而且，此外/ thus 因而，因此/ therefore 因此所以/ so He is busy, so/ therefore/ thus/ as a result he can’t come.二：从属连词1．表时间once 一旦就，/as 当，一面…一面/ as soon as / before/ aftersince/ till/ until / when / whilehardly …when…/ no sooner…than/ the moment / the minute/ immediately/ on/upon sth/doing一…就every / each time…每当…时the first time…第一次_______Ｉstayed in France, I made many friends.(当…时候)_______ he got to the cinema , the film had been on._________ I listen to your advice, I get into trouble.(每次)_________ I saw him , he was studying in the room.（第一次）２．表地点where 在…地方，到…地方/wherever 无论在…地方Where there is a will, there is a way.This kind of plant can grow where it is neither hot nor cold.He lives far from where we are.Make a mark where you have any questions.4. 表原因because（１）强，直接必然的原因（２）回答why 文句（３）可说not because … but because…(4)用于It is… that 强调结构for （１）弱，表推测说明（２）不放在句首since 弱as最弱，表间接附带的原因（句首）now that = since 既然It’s spring now______ the winter is over/ ______ the flowers are out.Why can’t you do it now?---______ I am too busy.It’s _______ he helped you that I’m prepared to help him.He didn’t go to school not ____ he was ill but ____ he didn’t like to.______ we’ve no money, we had better not buy it.The oil must be out,____ the light went out.The light went out ______ the oil was out.5.表结果such+a/ an + adj+ n + thatso + adj/ adv + thatso clever a boy/ such a clever boy6. 表条件if 如果，as/ so far as…至于，就而言as/ so long as 只要，如果on condition that 如果假如只要provided/ providing that…倘若，如果suppose/ supposing/ ifin case ( that) 万一，若发生unless= if not如果不，除非＿＿＿＿（据我所指），there is no such word in Chinese.________(只要)we don’t lose heart, we will succeed.I will let you go to town __________(只要倘若) you don’t waste money._______(万一) I forget , please remind me of my promise.One can’t learn a foreign language well ___________________(除非他努力). 7. 表目的for fear that…惟恐，以免in case that…以防，惟恐in order that/ so that…以便，为了He is working hard ___________________________(以免他会失败).I will take my umbrella _________________________(万一天下雨).They started early ______________ they would arrive in time.8. 表让步even if/ though 即使，though/ although尽管，虽然while = thoughno matter who = whoeverno matter whom = whomeverno matter what = whateverno matter which = whicheverno matter how = however + adj/ adv+ 主语＋谓语no matter when = wheneverno matter where = whereverwhether.. or…无论．．．还是．．．无论我说什么他认为我是错的．尽管他年纪大但是相当有经验．即使你失败了你也要尽力．无论他是病了还是健康，他总是欢快的．（cheerful）.9.表方式as if/ though 似乎，好象（后面可跟虚拟语气／陈述语气）just as 如象，正象…一样The two strangers talked as if they had been friends for years.He acted as if nothing had happened.He speaks as if he were a boy in his teens.(虚拟)He walks as if he were drunk.(虚拟，没醉)He walks as if he is drunk.(陈述，醉了)．10.表比较as….as …象一样（肯定句）／not as/so … as….(否定句)as many +名词复数+ as…/ as much + 不可数名词＋as…than …the +比较级＋主语＋谓语，the +比较级＋主语＋谓语（越…越…）The students got as many books as they needed.The more you pratise, the more you know.The harder you work, the greater progress you will make.To tell the truth, you are not as/ so kind as you were.▲though / although不与but 连用，但与yet/ still 连用▲；相当于and , but so 等Although it rained heavily,______ they went on working.They entered the room, ________(talk) loudly.They entered the room and________(talk) loudly.He put on his gloves, opened the door and ________ (leave) home.He put on his gloves and went out, ________( leave)the door open.★连词辨析:as (1)当…时;同时(2),随着(强调主句动作与从句动作同时发生,一般持续时间不长)when (1)当…时候(从句中可以是延续性动词或非延续性动词)(2)突然,在那时( be about to do ..when/ be doing …when) 表示一一动作正要发生或正在发生被另一动作打断(3) 既然= sincewhile (1) 当时候(从句中只能用延续性动词)(2) 而( 表示两者的对比)(3) 尽管= though/ although练:______ he comes back, I’ll ask him a question.Hardly had he gone to bed ______ he heard a knock at the door.The phone rang _______ I was studying.I was studying _______ the telephone rang.I was about to go out _______ it began to rain.I was thinking of this _______ I heard my name called.Some are rich _______ others are poor.We must strike _______ the iron is hot.(趁热打铁).________ time went on, we grew wiser.I can’t tell you anything _______ you won’t listen.___________ he has failed several times, he won’t give up._________ she is young , she knows a lot .adj/ adv +adj + a/ an + 名词单数+so + few + 名词复数/ little + 不可数名词(如此少的) + that…many +名词复数/ much + 不可数名词(如此多的)+such + (a/ an )+ adj + 名词+ that….little / small (小的) + 名词+such…. that…as…(引导定语从句)one/ no / many/some/ several + such +名词练习:He made _____ many mistakes in his writing that he only got 5 points.I found _____ little food could save ______ little boys.Can you believe that in ____ a rich country there should be ___ many poor people.He made _____ great progress that we all admired him.He made _____ many achievements that we all admired him.Tom is _____ honest a boy that we all like him.He is ______ a great poet _____ we all admire him.He is _____ a great poet _____ we all admire.There is ______ man in the company.A. such noB. no suchC. no such aD. such a no(1)_____ working in the town, he made many good friends.A. IfB. WhileC. AsD. Since(2) ---Were you about to go out __________?---Yes, it was.A. when I dropped inB. while I cameC. as it began to rainD. when I stayed there(3) The mother felt very weak,_____ she carried the baby in her arms all the way to the hospitalA. howeverB. thereforeC. yetD. so(4) _____ all his friends and money gone, he felt hopeless.A. ForB. SinceC. BecauseD. With(5) Betty talked about the contest _____ she had won the prize.A. in order thatB. as ifC. even ifD. even though(6) The children were enjoying their dinner______ a stranger knocked at the door.A. thenB. whileC. asD. when(7) Tim may come to see me .I don’t want to go out ______ he comes.A. so thatB. in caseC. as long asD. now that(8) As we have planned, we’ll go to Beijing to attend her sister’s wedding . We’ll visit our mother school _____ we go there.A. ifB. whenC. onceD. even if(9) ---How long do you suppose it is______ he arrived here?--- No more than half an hour.A. whenB. beforeC. afterD. since(10) This kind of computer is very expensive . I will buy one,______.A. thoughB. as wellC. soD. instead(11) How can you learn everything ____ you spend all your spare time playing computer games?A. whileB. whenC. sinceD. in case(12) He made a mistake but he corrected the situation_____ it worse.A. untilB. whenC. beforeD. as1.She had just finished her homework ______ her mother asked her to practice playing the piano yesterday. A. when B. while C. after D. since2. My parents don’t mind what job I do ______ I am happy.A. even thoughB. as soon asC. as long asD. as though3. You can’t borrow books from the school library ______ you get your student card.A. beforeB. ifC. whileD. as4. Peter was so excited _______he received an invitation from his friend to visit Chongqing.A. whereB. thatC. whyD. when5. All the dishes in this menu, _________otherwise stated, will serve two to three people.A. asB. ifC. thoughD. unless6.Because of the financial crisis, days are gone ________local 5-star hotels charged 6,000 Yuan for one night. A. if B. when C. which D. since7 ____________ unemployment and crime are high, it can be assumed that the latter is due to the former. A. Before B. Where C. Unless D. Until8.The little girl who got lost decided to remain __________ she was and wait for her mother.A. whereB. whatC. howD. who9.The medicine works more effectively __________ you drink some hot water after taking it.A. asB. untilC. althoughD. if10.It’s just unfair ___ I was working as a waiter last month, my friends were lying on the beach.A. wheneverB. thoughC. forD. while11.---I wonder how much you charge for your services.--The first two are free___________ the third costs $30. A. while B. until C. when D. before12.________ the police thought he was the most likely one, since they had no exact proof about it, they could not arrest him.A. AlthoughB. As long asC. If onlyD. As soon as13.You may use the room as you like________ you clean it up afterwards.A. so far asB. so long asC. in caseD. even if14.The doctor warned John that he might be overnight __________ he got enough exercise.A.. becauseB. ifC. unlessD. until15. ___________a certain doubt among the people as to the practical value of the project.A. It hasB. They haveC. It remainsD. There remains16.She is very dear to us. We have been prepared to do __________it takes to save her life.A. whicheverB. howeverC. whateverD. whoever17. The fact has worried many scientists ______ the earth is becoming warmer and warmer these years. A. what B. which C. that D. though (09江西)18.Could I speak to ___________is in charge of International Sales please?A. whoB. whatC. whoeverD. whatever （09海南）19.The how to book can be of help to __________wants to do the job.A. whoB. whomeverC. no matter whoD. whoever (09陕西）20. One of the most important questions they had to consider was _________of public health.A. whatB. thisC. t hatD. which （09海南）。
英语语法知识——连词
英语语法知识——连词连词是一种起连接作用的词。
连词是虚词，不能单独作句子成分，只能起连接单词、短语或句子（包括从句与分句）的作用。
可分为并列连词与从属连词。
一、并列连词的用法1．并列连词and的用法and可以连接两个的词，多用于肯定句中。
连接两个句子，表示因果、对比、条件、假设、目的等。
例如：（连接两个动词如go, come等表示目的）去取Go andfetch something to eat.些吃的东西来。
andLily is fond of sports.Mary likes music玛丽喜欢音乐，莉莉爱好体育运动。
（对比）One more week and we’ll accomplish the task.再一星期，我们就完成任务。
（条件）的用法2．并列连词both…and,not only…but also, as well as①both…and意为：“不但…而且…；既…又…”，是并列连词，可以并列主语、宾语、表语、状语、谓语等成份。
并列主语时谓语动词用复数形式。
Both New York and London have traffic problems.纽约和伦敦都存在交通问题。
Spanish.The secretaryboth speaks and writes这位秘书不但能讲而且能写西班牙语。
②not o nly…but also 意为：“不但...而且”，是并列连词，可以连接两个词，也可连接两个句子。
其中，but also 中的also可以省略。
not o nly…but also 可以连接句中所有的成份，连接并列主语时，其谓语动词根据就近原则，与所靠近的成分保持数的一致。
not o nly…but also 可以连接两个句子，not only 位于句首时， not only 后的句子要倒装。
Not only the students but (also) their teacher is enjoying the movie.不仅学生们津津有味地看着这部电影，而且他们的老师也是如此。
高中英语语法-连词(带习题)
before & after 在…之前或在…之后， as soon as, once 一…就… since &until 自从，直到 Until和till两者区别： 1. till不能用于句首 2. 用在否定句中，表示“直到…才”， 这个动作直 到until所表示的时候才发生。
A．If
C．Because 【解析】
B．While
D．As 考查状语从句的从属连词。句意为：尽管因
特网用途巨大，但我认为在网上花费太多的时间并不好。
while引导让步状语从句相当于although，故选B。 【答案】 B
④We had to wait half an hour ________ we had already booked a table. A．since C．until B．although D．before
4.我和他都不喜欢这首歌 Neither I nor he likes this song. 5.我的朋友们和我都不是老师 Neither my friends nor I am not teacher. 6.不仅妈妈而且孩子们都生病了。 Not only the mother but also the children are ill. 7.他不仅洗了衣服而且还打扫了房间 He not only washed the clothes but also cleaned the room
【解析】
考查连词辨析。做该类型的题目关键是看两
个分句间的关系。“我们等了半个小时”和“ 我们早已预定 了餐桌 ” 之间是转折关系，故选 although 。 although 引导让
步状语从句，意为“虽然，尽管”。干扰项 since 有“既然”
初中英语语法之连词(共30张PPT)
C. are
A or B 和 not A but B 结构作主语 时，谓语动词要使用就近原则。
考点二 ：表转折的连词but 和however：
e.g. (他努力工作，但以失败告终。)
He worked hard, _b_u__t __ he failed at last. He worked hard. _H_o_w__e_v_e_r _, he failed at last.
C. or
adj.比 + and + adj.比 表示越来越…
2. He or the twins __ the USA.
A. comes from
B. come from
C. is from
4. Not Tom but I ___ going to give the talk.
A. am
B. is
①Either
you or
I
a_m____
going
to
the
则”】
party.
(或者你或者我将去晚会。)
②Neither I nor he _h_a_s___ seen the movie.
（我和他都没有看过这部电影。）
③Not only you but also he s_p_e_a_k__s__
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.
（2）“Because John was ill, so I took him to
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. It was such a warm day that he went swimming.
英语语法：连词教程
英语语法：连词教程连词是连接句子、短语或单词的词语，它们在句子结构和语义中起到关键作用。
本教程将介绍一些常见的连词及其用法。
1. 并列连词（Coordinating ns）- 并列连词用于连接两个相同重要性的句子或短语。
- 常见的并列连词有：and（和）、but（但是）、or（或者）、so（所以）等。
- 例句：I like to play tennis, and my brother likes to play soccer.2. 从属连词（Subordinating ns）- 从属连词用于引导从句，并将其与主句连接起来。
- 常见的从属连词有：although（尽管）、because（因为）、if （如果）、when（当）等。
- 例句：Although it was raining, we still went for a walk.3. 连接副词（Conjunctive Adverbs）- 连接副词用于连接两个独立的句子，并且表达句子之间的关系。
- 常见的连接副词有：however（然而）、therefore（因此）、meanwhile（同时）、instead（相反）等。
- 例句：I wanted to go to the party; however, I had too much work to do.4. 转折连词（Correlative ns）- 转折连词用于表达对比或选择关系。
- 常见的转折连词有：either...or（要么...要么）、neither...nor（既不...也不）、both...and（既...又）、not only...but also（不仅...而且）等。
- 例句：She can either go shopping or stay at home.5. 等位连词（Coordinative ns）- 等位连词用于连接两个同等重要的短语或单词。
- 常见的等位连词有：for（因为）、and（和）、nor（也不）、but（但是）、or（或者）、yet（然而）、so（所以）等。
英语语法连词归纳总结
英语语法连词归纳总结连词是用来连接词、短语、句子或句子成分的词语。
它们在英语语法中起到了连接和衔接句子结构的作用。
下面是一些常见的英语连词及其功能的总结：1. 并列连词（Coordinating Conjunctions）：用于连接同等重要或平行的词、短语或句子。
- 并列连词有且（and）、或（or）、但是（but）、所以（so）、或者（or）等。
- 例如：I like coffee and tea.（我喜欢咖啡和茶。
）2. 从属连词（Subordinating Conjunctions）：用于连接主从复合句，将一个从属分句引入主句中。
- 从属连词有如果（if）、当（when）、因为（because）、尽管（although）、虽然（though）等。
- 例如：I will go to the park if it doesn't rain.（如果不下雨，我会去公园。
）3. 连接副词（Connective Adverbs）：具有连词功能的副词，用于连接句子。
- 连接副词有然后（then）、因此（therefore）、此外（besides）、同时（meanwhile）等。
- 例如：I finished my homework. Then, I went to bed.（我完成了作业。
然后，我上床睡觉。
）4. 并列连接词（Correlative Conjunctions）：由两个词组成，起到连接和平衡作用。
- 并列连接词有既…又…（both...and...）、不仅…而且…（not only...but also...）、虽然…但是…（although...yet...）等。
- 例如：He is both smart and kind.（他既聪明又善良。
）5. 表示选择的连接词（Conjunctive Adverbs of Choice）：用于表示选择关系的副词。
- 表示选择的连接词有不管（no matter）、无论…还是…（whether...or...）、无论是…或…（either...or...）等。
英语连词总结
英语连词总结英语连词的用法归纳，连词是连接词、短语、从句或句子的词。
连词是虚词，不能在句中单独作句子成分。
根据含义及其所连接成分的性质，连词可以分为并列连词和从属连词。
一、并列连词1. 表示同等关系这类连词主要有：and, neither…nor…，not only…but(also)…，both…and…，as well as等。
例句：The weather is mild today;it is neither hot nor cold.语法：句中的neither…nor…是表示同等关系的并列连词，连接两个同等关系的表语。
译文：今天的天气很温和，既不热也不冷。
2. 表示转折关系这类连词主要有：but, yet等。
例句：Someone borrowed my pen, but I don't remember who.语法：句中的but是表示转折关系的并列连词，连接两个转折关系的简单句。
译文：有人借了我的钢笔，但我不记得是谁了。
3. 表示因果关系这类连词主要有：so, for等。
例句：The child had a bad cough, so his mother took him to the doctor.语法：句中的so是表示因果关系的并列连词，连接两个因果关系的简单句。
译文：这个孩子咳嗽得很严重，所以他的妈妈带他去看医生。
4. 表示对比关系这类连词主要有：while, whereas等。
例句：Some people praise him, whereas others condemn him.语法：句中的whereas是表示对比关系的并列连词，连接两个对比关系的简单句。
译文：有些人赞扬他，而有些人谴责他。
5. 表示选择关系这类连词主要有or, either…or…等。
例句：Either you can talk to him, or I will.语法：句中的Either…or…是表示选择关系的并列连词，连接两个选择关系的简单句。
【英语】英语语法连词归纳总结
【英语】英语语法连词归纳总结一、单项选择连词1．The result of the study indicated that it was the type of fat ______ made the difference．A．that B．what C．who D．as【答案】A【解析】此题考查强调句型，其结构为：it is/was+ 被强调的部分+ that,句意：研究结果表明就是脂肪的类型使得有所不同。
所以选A。
2．I’m sorry I got caught in the traffic；_________, I could have been here sooner．A．besides B．althoughC．anyway D．otherwise【答案】D【解析】考查含蓄虚拟条件句。
I could have been here sooner是和过去事实相反的虚拟语气，四个选项中只有otherwise可以充当含蓄虚拟条件，相当于if I had not got caught in the traffic.所以选D。
3．Life isn’t always beautiful, ________ the struggles make you stronger and the changes make you wiser.A．or B．so C．but D．for【答案】C【解析】试题分析：考查连词。
句意：生活不总是美丽的，但是困难使你更强壮，改变使你更明智。
or或者，否则；so所以，因此；but但是；for因为。
故选C。
考点：考查连词4．Things don’t always go as planned, ________ I st ill stay positive.A．or B．as C．but D．for【答案】C【解析】试题分析：考查并列连词。
句意：事情并不总是按着计划进行，但是我仍然保持积极。
英语连词、介词语法
连词的分类按其用法分类：一、并列连词①连系连接词，表垒加：and , neither…nor… , as well as , both…and , not only …but also等。
The captain , as well as the passengers , was frightened .Not only the students but their teacher has participated in the game .②选择连词：or , either...or , or else , otherwise 等。
In the case of does and fawns , a great deal of energy is expended either in milk production or in growing .至于雌鹿和幼鹿，大量的能量或者用于产奶或者用于生长。
③转折连词：but , yet , notwithstanding , nevertheless等。
He still delayed , notwithstanding there was need for haste .他还是拖延了，虽然事情刻不容缓。
He was very tired , nevertheless he kept working in the lab .他累得很，然而仍继续在实验室工作。
④原因连词：forThe windows were open , for it was hot .⑤结果连词：soShe consented , so they left . 她答应了，于是他们离开了。
二、从属连词：①引导名词型从句：that , if , lest , wh-words .It is doubtful whether he will be able to come .He feared lest he should be late . 他担心会迟到。
小学生英语语法大全连词
C__
pears?
12） Now we have no time
A. so
B. and
C___C__.
money. or
13） It’s getting warmer __ warmer.
A. and
B. butA
C. or
3.找出下列句中的错误，并予以订正。
1）Because he was hungry, so he ate two bowls of rice.
.
(but)
2）He broke his left leg. He couldn’t attend the meeting yesterday.
(because)
He couldn’t broke his left
attend leg.
the
meeting
yesterday,
Because
he
.
3）Bob entered the room. Bob took off the coat.
（努力学习，那么你的数学成绩将会很好）
Study hard, or your math will be worse.
（努力学习，否则你的数学成绩将会很差）
1.请用括号里的连词连接下列句子
1）He is rich. He is unhappy.
He is rich but he is unhappy
A. and
B. but
C. both A and B
10）This is my first lesson, C__ I don’t know your names.
A. and
B. but
C. so
英语语法：连词
高中英语语法总结大全之连词●要点清单连词连词是一种虚词，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。
连词主要可分为两类：并列连词和从属连词。
并列连词用来连接平行的词、词组和分句。
如：and,but,or,nor,so,therefore,yet,however, for,hence,as well as,both…and,not only…but also,either…or,neither…nor,(and)then等等。
并列连词与并列结构并列连词引导两个并列的句子。
1)and与or判断改错：(错)They sat down and talk about something. (错)They started to dance and sang.(错)I saw two men sitting behind and whisper there.(对)They sat down and talked about something. (对)They started to dance and sing.(对)I saw two men sitting behind and whispering there.解析：第一句：and连接两个并列的谓语，所以talk 应改为talked。
第二句：and连接两个并列的动词不定式，第二个不定式往往省略to，因此sang应改为sing。
第三句：and连接感观动词saw后面的用作的宾补的两个并列分词结构，因此whisper应改为whispering。
注意：and还可以和祈使句或名词词组连用表示条件。
（or也有此用法）Make up your mind,and you'll get the chance.=If you make up your mind,you'll get the chance. One more effort,and you'll succeed.=If you make one more effort,you'll succeed.2)both…and两者都She plays(both)the piano and the guitar.3)not only…but(also),as well as不但…而且）She plays not only the piano,but(also)the guitar.注意：not only…but also关联两个分句时，一个分句因有否定词not而必须倒装。
初中英语语法大全之连接词辨析.doc
初中英语语法大全之连接词辨析连接词辨析(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, lets 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 dont 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。
英语基础语法之连接词
1、连词的含义：连接词与词、短语与短语、或引导从句的词叫连接词。
2、连词的分类：连词分为并列连接词和从属连接词两种。
1、并列连接词连接并列的词、短语、从句或句子。
常见的并列连接词有：and(和),but(但是),or(或者,否则),nor(也不), so(所以), however(然而,无论如何),for(因为),still(可是),as well as(也),both..and...(...和...), not only ...but also...(不但…而且…), either… or…(或…或…),neither… nor…(既不…也不…)等。
2、从属连接词用于引导从句,常见的从属连接词有：when(当…时候), while(正当…时候), after(在…之后), before(在…之前), since(自从), until(直到), although/though(虽然), if(假如), as(如…一样；由于), as …as…(和…一样), as far as(就…而言), as long as(只要), as soon as(一…就…), even if(即使), because(因为), unless (除非), than(比…), whether (是否…), in order that…(为了), so…that…(如此…以致), so that…(以便), now that…(现在既然), by the time…(到…时候), every time…(每当), as if…(仿佛),no matter when(或whenever)(无论何时),no matter where(或wherever)(无论在哪里)等。
［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。
英语语法连词归纳总结
英语语法连词归纳总结一、单项选择连词1．He smiled politely Mary apologized for her drunken friends.A．as B．ifC．unless D．though【答案】A【解析】A解析句意为：当玛丽因她醉酒的朋友向他道歉时，他礼貌地微笑着。
if如果，引导条件状语从句；unless除非，引导条件状语从句；though虽然，尽管，引导让步状语从句。
as 可引导时间状语从句，表示主从句动作同时发生或前后紧接着发生，常常译为“(正当)……的时候，随着……，一边……一边……”，故只有as符合题意。
2．— How can I wake up so early?—Set the alarm at 5 o’clock,you’ll make it.A．but B．or C．and D．so【答案】C【解析】试题分析：考查情景交际和并列连词。
句意：--我怎样才能醒的很早？--把闹钟定到5点，这样，你就能做到了。
答语前后是并列关系，祈使句+and表示条件，相当于if条件句。
or 表示相反的情况，故选C。
考点：考查情景交际和并列连词3．_____ astronauts cannot go to a baseball game or a movie in space, there are many familiar activities that they can still enjoy.A．Once B．Unless C．While D．Since【答案】C【解析】while在此句中作为连词，表让步，意思是“虽然，尽管”。
句意：在太空中，宇航员们虽然不能去看棒球比赛或看电影，但那里还有很多相类似的活动他们仍然是可以玩的。
考点：连词／连接词4．How long do you think it will be ________ the computer company brings out a new product? A．until B．when C．before D．that【答案】C【解析】分析句子，可知这是一个时间状语从句。
初中英语语法大全之连词.doc
初中英语语法大全之连词知识点总结连词是一种连接词与词，短语与短语以及句与句的虚词，它不能独立担任句子成分而只起连接作用。
连词主要可分为两类：并列连词和从属连词。
一、并列连词用来连接平行的词、词组和分句。
并列连词连接的双方是对等的。
常有的并列连词有and, bothand（两者都）, neithernor（既不也不），not onlybut also（不但而且）, as well as等。
但如果连接的两部分意义不趋向一致，意义有转折的并列连词有：but（但是), however(然而）, while (而)，only (只不过)。
还有表示选择关系的并列连词，如：or, eitheror（或者或者）, 再有的是连接双方，互为因果，或表示前因后果的连词有：for（因为）, so（所以）, therefore (因此)等。
例句：She plays not only the piano, but (also) the guitar.二、从属连词，在初中范围内常常考查引导状语从句、宾语从句的从属连词。
其中有时间状语从句，常用的连接词有：when，while, as, since, before, after, once, as soon as, until, till连接条件状语的连词有：if, unless, as long as等，而原因状语的连接词有because, since, as, now that (既然)。
目的、结果、方式、比较、地点等状语从句的连接词有：so that, sothat, suchthat, asas, than, where 它们在句子与文章中几乎无处不见。
用来连接宾语从句，如：that, if, whether。
例句如下：Tom will call me as soon as he gets to Shanghai.The meeting didn’t start until everyone was there.I want to know if she is going to see a film.常见考法对于连词，主要以单项选择或完形填空的形式从意义和功能(重点是意义)角度考查学生灵活运用连词的能力。
英语连词语法
连词基本要求：对照例句，理解划横线连词的中文意思！！一、并列连词并列连词用来连接并列关系的词，词组或分句。
包括：and, or, but, so ,both…and, either…or, neither…nor可以分为四类：and类，表示并列关系，but类，表示转折关系，or类，表示选择关系，so类，表示因果关系。
分述如下：（一）表示并列关系的and类连词1、and“和，并且”，连接并列关系的项例：She lives and works there.2、both…and…“既……也……”例：Both Jim and Jack are Americans.3、either…or…“或者……或者……”连接并列主语时谓语动词一般根据第二个主语的变化而变化。
例：Either you or I am right.4、neither…nor…“既不……也不……”连接并列主语时谓语动词一般根据第二个主语的变化而变化。
例：Neither you nor she is right.5、not only…but also…“不但……而且……”例：I play not only the piano, but also the violin.（二）表示转折关系的but 类连词。
1、but“但是”例：He is old, but he looks very young.2、yet“然而”例：She is young, yet she is very clever.3、however“然而”例：He wanted to go there, however, he didn’t know the way.4、nevertheless“然而”例：I have given her lots of flowers, nevertheless, she is still not satisfied.5、while“然而”例：I am good at swimming while my father is good at skating.（三）表示选择关系的or类连词。
英语语法连词归纳总结
英语语法连词归纳总结一、单项选择连词1．You won’t find paper cutting difficult _____you keep practicing it.A．even if B．as long as C．as if D．ever since【答案】B【解析】【详解】考查引导状语从句的连词辨析。
句意：只要你不断练习，你不会觉得剪纸很难。
A. even though即使，虽然;B. as long as只要；C. as if犹如，好像；D. ever since自从。
前后句是条件关系，故选B。
2．To live in honor, he came from a poor family, was his ambition.A．though B．if C．unless D．however【答案】A【解析】though尽管if如果;是否unless除非however无论怎样,根据题意他的野心就是为了有尊严的活着,尽管他来自一个贫穷的家庭.故选A.3．— How can I wake up so early?— Set the alarm at 5 o’clock,you’ll make it.A．but B．or C．and D．so【答案】C【解析】试题分析：考查情景交际和并列连词。
句意：--我怎样才能醒的很早？--把闹钟定到5点，这样，你就能做到了。
答语前后是并列关系，祈使句+and表示条件，相当于if条件句。
or 表示相反的情况，故选C。
考点：考查情景交际和并列连词4．I missed supper_______ I’m starving!A．but B．and C．or D．for【答案】B【解析】试题分析：句意：我没吃晚饭，现在我快要饿死了！由句意可知，空格处应该是缺少表示递进的连词，but表转折，or表选择，for表原因，只有and表递进，故选B。
考点: 考查连词的用法。
5．Life isn’t always beautiful, ________ the struggles make you stronger and the changes make you wiser.A．or B．so C．but D．for【答案】C【解析】试题分析：考查连词。
英语基础语法连词
英语基础语法连词连词分为并列连词和从属连词两大类。
并列连词是连接主语与主语，谓语与谓语，句子与句子，分词与分词的词，它要求前后两部分有相同的形式和语法作用；而从属连词一般连接主句与从句，从句形式有名词性从句，定语从句和状语从句等。
1．并列连词并列连词可用来连接词与词，词组与词组，分句与分句。
常用的并列连词有：and(和)，as well as(既……又)，both... and(不但……而且)，not only... but also(不但……而且)，not ...but(不是……而是)，neither...nor(既不……也不)，either... or(不是……就是)，or(或者)，but (但是)，yet(然而)，for(因为)，so(所以)，while(而)，when(这时)等。
如：Both my brother and my sister are teachers./ His room is bright but mine is gloomy(暗沉沉的)．/ He can not only repair radios but also fix them./ It is a glorious(光荣的)yet difficult task./ Strike while iron is hot.2．从属连词从属连词是指在复合句中引导从句的连结词。
常见的从属连词有：(1)引导时间状语从句的：after, before, when, as, while, since, until, till, as soon as(2)引导原因状语从句的：because, since, as(3)引导让步状语从句的：although, though, no matter(无论), even if (though)(4)引导条件状语从句的：if, unless, once, so (as) long as(5)引导结果状语从句的：so... that..., such...that...(6)引导目的状语从句的：so that..., in order that...(7)引导比较状语从句的：as...as..., not so (as)．.. as...，... than...(8)引导方式状语从句的：as if...(9)引导主语，宾语或表语从句的连词主要有：that, whether, if三个。
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英语语法大全:连词
连词（Conjuction—conj.）
定义用以连接句子中的单词、短语、从句，或连接句子和句子的词叫做连词。
例如：
and（和），but（但是），so（所以），or（或者），…
that，because（因为），since（既然），…
连词的表达功能如下：
（1）并列功能（“+”代表连词）
（a）词+词
boys and girls（男生和女生）
you and I（你和我）
poor but happy（贫困的，但是快乐）
（b）短语+短语
in the city and in the country.（在城市和在乡村）
by bus or by train（乘公共汽车或乘火车）
（c）从句+从句
例：He is not very bright but he studies hard.
（他并不聪敏，但是他很用功。
）
例：I didn't have breakfast this morning, so I am hungry now.
（今天早晨我没吃早餐，所以我现在饿了。
）解说表达并列功能的连词叫做并列连词（Coordinate Conjunction）。
并列连词两端的词的词类必须相等。
又如“词+短语/从句”或“短语+词/从句”等也都不成立。
（2）从属功能
请先了解什么叫做从句（Subordinate Clause.）
本身不能独立表达完整的意思而只在句子中作句子结构的一部分者叫做从句。
用以连接从句使其在主句中发挥表达功能的词叫做从属连词（Subordinate Conjunction）。
as，when，since，that，who，which，what，…
例：I know that he is a very good student.
（我知道他是一个很好的学生。
—“that…”是名词从句作“know”的直接宾语。
）
例：People who use free time well are usually healthy and happy.
（善于利用空闲时间的人通常都是又健康又快乐。
—“who…well”是形容词从句修饰其前面的名词“People”。
）
例：Many people enjoy reading when they have free time.
（许多人有空闲就喜爱阅读。
—“when…time”是副词从句在修饰动词“enjoy”。
）。