小升初英语语法 连词
小升初英语语法知识点大全
小升初英语语法知识点大全一、动词时态1. 一般现在时：表示经常性、习惯性的动作或存在的状态。
例如：I go to school every day.2. 现在进行时：表示正在进行的动作。
例如：She is reading a book.3. 一般过去时：表示过去发生的动作或存在的状态。
例如：I watched a movie yesterday.4. 过去进行时：表示过去正在进行的动作。
例如：They were playing football at 3 p.m. yesterday.5. 将来时：表示将来要发生的动作。
例如：We will visit Beijing next week.6. 过去将来时：表示过去一些时间要发生的动作。
例如：I said that I would go to the park tomorrow.7. 完成时态：表示动作已完成或在过去的一些时间点之前已完成。
例如：We have finished our homework.二、名词1. 可数名词和不可数名词：可数名词指可以计数的名词，如书（books），而不可数名词指不能计数的名词，如水（water）。
2. 单数名词和复数名词：单数名词指一个，而复数名词指多个。
例如：book（书）→books（书籍）。
3. 可数名词的复数形式：许多词在复数时需进行变位，如cat（猫）→cats（猫）、baby（婴儿）→babies（婴儿）。
4. 不可数名词的用法与数量表示：不可数名词无复数形式，不能与数词或a/an连用。
对于不可数名词表示的量，需使用量词或具体表示数量的词语，如a bottle of water、a cup of tea。
三、形容词和副词1. 形容词用法：形容词修饰名词，用来描述名词的性质或特征。
例如：a big dog（一只大狗）。
2. 形容词的比较级和最高级：形容词的比较级用于表示两个人或物之间的比较，如taller（更高），而最高级则用于表示三个或三个以上人或物之间的比较，如the tallest（最高的）。
小升初英语语法讲义：连词-通用版
学习目标1. 了解连词的概念、功能和分类。
2.考点梳理一、连词的概念：连词是一种虚词，不能独立担任句子成分。
连词在句中主要起连接词与词、短语与短语及句子与句子的作用。
并列连词分类：从属连词二、并列连词（一）并列连词的分类：例句：He is only 12,but he is strong enough.他只有12岁，但他足够强壮。
She’ll be back either this week or next week. 她将在这周或下周回来。
I have a brother and sister. 我有一个哥哥和一个姐姐。
（二）并列连词的用法：1. 并列连词and和or：①and和or 是用得最多的并列连词，可以用于连接：a. 两个并列的动词：We were singing and dancing all evening. 整个晚上我们都在唱歌跳舞。
b. 名词、形容词等：This apple is big and red. 这个苹果又大又红。
Would you like fish or beef? 你想要点鱼还是牛肉？c. 两个并列的分句（句子）：I said it and I meant it. 我说话算数。
②区别：and用于肯定句，or多用于否定和疑问句。
【提问】Do you want to live in the city __________the country?I won’t go to the park _______ the museum. I prefer to stay at home.③or用于肯定句，表示“否则”：例句：Don’t drive so fast, or you’ll have an accident. 别开这么快，不然你会出车祸。
【考题链接】（1）—I don't like chicken ___ fish.—I don't like chicken, ___ I like fish very much.A. and； andB. and； butC. or； butD. or；and答案：C解析：否定句中表并列关系时用or, but 在句中表转折。
小升初英语专题复习(语法专练)连词
小升初英语专题复习（语法专练）：连词一、单选题（共50题）1.— Why are you wearing a raincoat?— _________ it's going to rain.A. SoB. BecauseC. Though2.She is having dinner, _______ the phone rings.A. onB. butC. so3.People don't travel by car______ by bike.A. orB. andC. but4._______ Bill and his father visit his grandparents, he still plays computer games.A. WhatB. WhereC. When5.We can't do so many things in the library. We can't talk ________ run.A. andB. butC. or6.Steven is a naughty ________ clever boy. He helped me a lot.A. andB. butC. then7.We can't eat ________ drink in class. We should listen carefully.A. andB. soC. or8.I'm going to the park, ________ it is getting dark now.A. butB. thenC. and9.He is playing the piano ________ everyone is listening and clapping.A. andB. orC. but10.My ruler is 15cm. Your ruler is 20cm. Your ruler is longer mine.A. thanB. thatC. what11.She always speaks _________smiles.A. withB. andC. or12.What kind of fruit would you like, watermelons _______grapes?A. orB. andC. with13.The film is so boring, ________ I don't want to see it.A. butB. becauseC. so14.—Why do you like the film?— ________ it's very relaxing.A. BecauseB. SoC. For15.The skirt is very cheap, ________ I'm going to buy it.A. butB. andC. so16.English is very difficult for me, _________ interesting.A. butB. andC. or17.Let's go to the shop ________ buy some clothes.A. andB. butC. or18.I visited some cities,_______ Shanghai, Hangzhou and Beijing.A. andB. such asC. so19.What do you do you have the flu?A. andB. whenC. where20._____ it was very hot in Thailand, we had a great time there.A. BecauseB. AlthoughC. So21.They look ____________.A. healthy and youngB. health and strongC. health and young22.I usually go to the park and_________ a kite.A. flewB. flyC. flies23.Hong Kong is a modern city, _______ it is a great place to go shopping.A. butB. ifC. and24.Please call me _________ you get to Beijing.A. orB. whenC. because25.I was really sad _________ I lost my dog.A. soB. andC. because26.Which city do you like, New York _________ Rome?A. orB. andC. but27.Janet was late for school ________ she got up late.A. soB. ifC. because28.I've got a cat, _______ I don't like it.A. soB. butC. or29.There are many differences _______ this book _______ that book.A. between; inB. between; andC. between; of30.He likes to hear _______ not to say.A. orB. andC. but31.Mike sister is tall _____________ thin.A. withB. thanC. and32.My dog is bigger _____________ yours.A. withB. toC. than33.He likes music, _______ he can't sing well.A. butB. andC. so34.Every day, she sat at a coffee shop writing ______ the first book was finished.A. toB. untilC. but35.The man is poor, he feels happy.A. andB. orC. but36.—I want to see the film. It's interesting.—________ I am hungry now. I want to eat first.A. AndB. SoC. But37.—How can I get to the bookstore?—Go Straight .______turn right.A. ButB. SoC. Then38.Tom visited the farm ___ his family yesterday.A. withB. forC. and39.They are working on the farm，________it starts to rain.A. andB. butC. or40.I also work hard all day, _____ people never praise me.A. andB. orC. but41.I was very tired, very happy.A. andB. butC. or42.Winter is cold in many countries, these smart animals can spend it safely.A. butB. andC. or43.Mr. and Mrs. White are poor, ________ they are very happy.A. andB. soC. but44.I like water, I can't swim.A. andB. butC. or45."It's easy fun," said Anne.A. thenB. butC. and46.Tom is taller me.A. thanB. moreC. more than47.Which pen do you like, the white one the black one?A. orB. andC. but48.The city is modern __________ noisy now.A. andB. butC. to49.I had a race _______ John and Max.A. withB. orC. and50.I couldn't play football ________ swim well.A. orB. andC. with答案解析部分一、单选题1. B解：句意：—你为什么穿雨衣?—……要下雨了。
小升初人教版英语1-6年级语法总复习
小学1-6年级英语语法总结汇总小学一年级英语语法总结1.Be老大，am,is,are. I am，You are，He is She is It is，easy easy so easy2.an+a,e,i,o,u3.a,a,a, 表单个，一个一个又一个。
a gun，a pen，a book。
还有一些不加a。
人名前面不加a，my gun，my pen，my book，通通不需再加a。
还有a，e，i，o，u，去a加an就对了。
4.改错题的做题方法：1)头看看大写(首字母，人名)2)尾看看标点有没有，对不对(看见what+?)3)中间也要看一看a.缩写符号在不在;b.a/an有没有，对不对;c.单词中间有无间隔5.Be老大，be老大，就数它的作用大。
要是变成否定句，Be老大后加not。
要是变成疑问句，be老大变第一名。
变完别忘要大写，句末还要用问号。
回答回答Yes/No，肯定Yes否定No。
肯定回答Yes，it is.否定回答No,it's not.否定句：be(am,is are)+not eg.This is not an elephant.Is this a monkey?(一般疑问句)Yes,it is. It's a monkey. --------(肯定回答)No,it's not. It's a bear. --------(否定回答)注意哦：I am a girl.变成一般疑问句是Are you a girl?6.反义词，了不起，高矮胖瘦和老幼。
Tall,short,fat,thin,old,young.肯定回答抄原题，否定回答找反义。
Eg.1)Is he tall? Yes,he is.He is tall.2)Is she tall?No,she isn't.She is short.*思考一下：1.Is your mother fat?(否定回答)No,she isn,t.She is thin.2.Is your father short and fat?(否定回答)No,he isn't.He is tall and thin.6.高矮胖瘦年轻老，形容你我刚刚好。
小升初英语语法基础培优第二十一讲-连词成句解题技巧(全国通用版)
考点精析： 连词成句为小学阶段英语考试的必考题型， 但也是大多数学生比较容易丢分的项目， 许多学生受到母语的影响，用自以为正确 的中文思维去带入，导致该题失分较多。
连词成句 连词成句是把错乱排列的词语根据语法或 句法特点组合成为句式整齐，内容恰当， 语气流畅的句子的方法。
牛刀小试 连词成句。
2.you, to, how, school, do, come (?)
How do you come to school?
解析：you你, to到, how如何,school学校, do助动词, come来. 这是疑问句how 放在句首, come to school组成短语: 来学校. 组成句子: 你如何来学校?How do you come to school? 故答案为: How do you come to school?
温馨提示：排好后，仔 细多读几遍，看看句子 是否通顺。
2.如果是问号，则是疑问语句。
when 问时间
5W1H
where 问地点 who 问人
how 问方式
what 问事
why 问原因
特殊疑问词+be动词(am, is , are)/助动词+…
②如果题目中有can, may ,shall,should ,would等情态 动词，那么它就是由情态动词引导的疑问句。
①由what引导的感叹句。其基本结构是What + a + adj. + n！ 。 What a lovely girl! 多么可爱的女孩啊！ ② 由 how 引导的感叹句。How + 形容词(+名词 + be 动词)！ How lovely the girl is ! 多么可爱的女孩啊！
专题07 介词与连词_备战2021年小升初英语必考语法和题型(解析版)
专题07 介词与连词(一)介词一、介词的概念介词常置于名词或代词之前，表示该词与其他成分之间的关系。
一般在句中不单独作任何句子成分。
如：at, on, in, about等。
二、介词的分类时间介词：方位介词：介词动向介词：方式介词：原因介词：考点1：表示时间的介词(1) at , in 和onat: ①表示具体的时刻。
如：at six o’clock.在六点钟②表示一段较短的时间。
如：at night 在夜里, at noon在正午.③表示人的年龄，常用短语at the age of ..., 如：at the age of ten. 在十岁的时候in: ①常与上午、下午、晚上等词连用。
如：in the morning在早上, in the afternoon在下午.in the evening在晚上②常与月份、季节、年份连用。
如：in May在五月, in 2020在2020年.in spring/summer/autumn/winter在春/夏/秋/冬天, on: ①常与星期连用。
如：on Sunday/Monday/Tuesday/Wednesday/Thursday/Friday/Saturday.②常与日期连用，指具体到某一天。
如：on May 1st, 2019 在2019年的五月一日.③常与表示具体的某一天上午、下午、晚上连用。
如：on Friday morning在周五的早上on a rainy afternoon在一个下雨的下午on the evening of May 5th在五月五日的晚上(2) before 和after 用来表示时间的先后顺序before：在……之前after：在……之后如：Spring comes before summer. 夏天之前是春天。
Come to my office after class. 放学后来我的办公室。
(3) from 用来表示从某段时间开始的动作，常与to 连用构成短语“from…to…”译为“从……到……”。
2023-2024学年小升初英语语法专题复习-词法(连词)
词法6: 连词连词的特点是不能独立担任句子成分，它只能起连接词与词、短语与短语、句与句以及引导从句的作用.考点一：并列连词并列连词用来连接平行的单词、词组和句子，这种关系是对等关系。
1. 并列关系。
(1) and 意为“和”,表示并列的含义He and I are students. 他和我都是学生。
(2) or 意为“或者”,表示选择的含义。
考点解读 连词思维导图 连词知识讲解考点透析Do you like juice or milk? 你喜欢果汁还是牛奶?Is he a farmer or a worker? 他是一名农民还是一名工人?2.转折关系。
but 意为“但是”,表示转折的含义。
I have a pen but no pencil. 我有一支钢笔,但没有铅笔Tom wants to go swimming, but Sam wants to play football. 汤姆想去游泳，但是萨姆想去踢足球。
3.因果关系。
(1)for 意为“因为”,表示因果的含义。
He is good at maths for he studies harder than others. 他擅长数学是因为他学习比别人更努力。
(2) so 意为“因此”,表示因果的含义。
He is ill so he can't go to school today. 他病了因此今天不能去上学。
我来练真题演练I、单项选择。
( ) 1．（2022·陕西汉中·小升初真题）Summer is coming.The days are getting longer ______ longer.A．but B．and C．so D．after( ) 2．（2022·河北唐山·小升初真题）Do you like this T-shirt __________ that T-shirt?A．to B．or C．and D．but( ) 3．（2022·山西太原·小升初真题）The swimsuit should not be too big ______ too small.A．and B．but C．or( ) 4．（2022·湖北黄冈·小升初真题）He is playing the suona, ______ the phone rings.A．or B．but C．with( ) 5．（2022·甘肃陇南·小升初真题）Our room was big ________ everything was very old.A．but B．because C．about( ) 6．（2022·安徽黄山·小升初真题）Today was a bad ______ good day for me.A．and B．but C．so参考答案：1．B【详解】句意：夏天来了。
小升初英语语法重点归纳
小升初英语语法重点归纳知识点：小升初英语语法重点归纳一、动词时态1. 现在进行时2. 一般现在时3. 一般过去时4. 现在完成时5. 一般将来时二、名词1. 名词的分类：普通名词、专有名词2. 名词的数：单数、复数3. 名词的所有格：-'s 和 of三、冠词1. 不定冠词：a、an2. 定冠词：the四、代词1. 人称代词：主格、宾格、形容词性物主代词2. 物主代词：名词性物主代词、形容词性物主代词3. 反身代词4. 指示代词：this、that、these、those5. 不定代词：some、any、no、every、each、both、all、either、neither等五、形容词和副词1. 形容词的比较级和最高级2. 副词的比较级和最高级3. 形容词和副词的转换六、介词1. 介词的分类：地点介词、时间介词、方向介词、方式介词等2. 介词短语七、连词1. 并列连词：and、or、but、nor、for、yet、so等2. 从属连词：because、if、although、though、until、after、before、since、lest等八、句子的类型1. 简单句2. 并列句3. 复合句4. 疑问句：一般疑问句、选择疑问句、特殊疑问句、反意疑问句5. 祈使句6. 感叹句九、被动语态1. 被动语态的构成：助动词be+过去分词2. 被动语态的时态：现在时、过去时、将来时十、主谓一致1. 名词作主语的主谓一致2. 代词作主语的主谓一致3. 不定代词作主语的主谓一致4. 并列主语的主谓一致十一、非谓语动词1. 动名词2. 分词：现在分词、过去分词3. 不定式十二、情景交际1. 问候与介绍2. 告别与感谢3. 道歉与许可4. 请求与建议5. 惊讶与祝贺本归纳文档涵盖了小升初阶段英语语法的重点知识点，旨在帮助学生巩固所学内容，为初中阶段的学习打下坚实基础。
在学习过程中，请注意理解各个语法点之间的联系，加强练习，提高英语水平。
小升初英语语法专项练习-【连词】全国通用(含答案及详细解析)
小升初英语语法知识专项练习连词一、单项选择1．I'm going to the park ________ my friends.A. withB. andC. but2．Are they going by bus ________ on foot?A. ofB. orC. and3．I don't have brothers ________ sisters.A. orB. alsoC. too4．I have two , a ruler a notebook in my desk.A. candy , andB. candy , 不填C. candies , and 5．Do the lions like eating meat hay?A. tooB. orC. Either6．Look, the boy is looking left, ________ right.A. andB. orC. butD. then 7．—How can I get to the bookstore?—Go Straight .______turn right. A. But B. So C. Then8．We are unhealthy. We can't run ________ jump.A. andB. orC. soD. ／9．I enjoy watching footba ll matches ________ hate volleyball matches.A.andB.butC.soD.like 10．—Does Linda like the black bag ________ the green bag?—She likes ________ black one.A. or, theB. and, theC. or, ／11．You've got a letter from New York , _____it's not from Daming .A. butB. andC. or12．Which do you want, the big moth the small moth?A. andB. orC. /13．Tom visited the farm ___ his family yesterday.A. withB. forC. and14．Do you go to bed at 9 at 9:30 in the evening?A. andB. orC. but15．You're taller ______ your brother.A. thanB. andC. more16．I like ice cream, ________ it's sweet.A. andB. butC. because17．The nature park is __________ beautiful.A. becauseB. soC. but18．I like the room, ________ it is not big or bright.A.becauseB.soC.but19．Miss Li is busy ________ she still helps u s a lot.A. butB. andC. orD. so 20．I don't like winter it's too cold.A. andB. becauseC. so21．I like chilies ________ they are spicy.A. butB. becauseC. soD. and 22．Mike is tall__________ strong.A. andB. orC. but23．—________ doesn't Alice go to school?—________ she is ill.A.Why, BecauseB.Because, WhyC.How, Yes24．My mother can drive a car, she can ride a bike, too.A. andB. butC. or25．I like noodles _____ I don't like rice.A. haveB. orC. but26．There aren't any trees ________ flowers in the garden.A. orB. andC. soD. but27．—I want to see the film. It's interesting.—________ I am hungry now. I want to eat first.A. AndB. SoC. But28．________ hat do you like, the brown one ________ the black one?A. Which, andB. What, orC. Which, or29．I don't live in China, __________ I like Chinese.A.andB.butC.so30．I like eating ice cream, _______I eat a little at a time.A. soB. orC. but（参考答案）一、单项选择1．【答案】A【解析】句意：我打算......我的朋友们去公园。
六年级下册英语试题-小升初英语专项训练 连词成句 通用版(含答案解析)
六年级下册小升初英语专项训练-连词成句通用版（含答案解析）一、连词成句1.meet I'm in going Beijing to you__________________________________________________________________.2.his, is, hat, on, Danny, putt ing(.)_________________________________________________________________3.fish I a have_________________________________________________________________4.wakes/ up/ me/ /the/my/ mother/ morning/at 6:30/in (.) (连词成句)_________________________________________________________________5.our, is, Li, teacher, Miss. , English, new (.)_________________________________________________________________ 6.wearing, He, red, is, trousers ( . )_________________________________________________________________7.you do last did what weekend (？)_________________________________________________________________8.①Thank ②my ③teachers ④ you ⑤to_________________________________________________________________9.What's , colour , favourite , your_________________________________________________________________ ?10.two I am_________________________________________________________________11.Amy，got，fever，today，has，a (.)_________________________________________________________________12.you / want / be / to / do / bus driver / a (?)_________________________________________________________________13.Yes is it ( , . )_________________________________________________________________14.got，bag，what，you，in，have，your(？)_________________________________________________________________15.is / the / blowing / strongly / wind (.)_________________________________________________________________16.the, room, computer, is, Where_________________________________________________________________17.you,what,do,the,on,do,weekend(? )_________________________________________________________________18.know, also, Australia, I, city, the, capital, of(.)_________________________________________________________________ 19.wants / to / Bob / food / nice / cook (.)_________________________________________________________________ 20.pig，my，this，is(．)_________________________________________________________________ 21.taller, you, than, are, brother, your (.)(连词成句)_________________________________________________________________ 22.is the When this year trip ?_________________________________________________________________ 23.like, I, teddy bear, your ( . )_________________________________________________________________ 24.a is zoo in there the south (?)_________________________________________________________________ 25.birthday 17 Her is December__________________________________________________________________.26.①some ②I ③have ④May ⑤milk_________________________________________________________________?27.going, party, I'm, a, to (.)_________________________________________________________________ 28.food, your, what's, favourite_________________________________________________________________ 29.the,where,the,orange,is,it is desk,on.(连词成句)_________________________________________________________________ 30.everything , robots , do , will（.）_________________________________________________________________ 31.do，anything，did，else，you (?)_________________________________________________________________ 32.连词成句。
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九、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，它是虚词，所以不能单独担任句子成分。
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 orderthat…(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 matterwhere(或wherever)(无论在哪里)等。
3、常用并列连词用法1) “and”1. He got up and left the room.2. He went to Kunming and I went to Harbin last year.特别用法: 句型“祈使句, and …”= If you…, you will…3. Work hard, and you will do well in the exam.2)“or”1. Tom or I am right. (or连接两个名词或代词做主语时谓语动词依照后面的词而定)2. Would you like coffee or tea? （选择）特别用法: 句型“祈使句, or…”= If you don’t …, you will…3. Hurry up, or you will miss the bus. （否则）3)“but”1. She is sixty, but she still looks young.2. She is tired but happy.3. I came here not for myself but for my son.4. Mary likes piano but Tom doesn’t (like可以省略).4)“for”1. I went to sleep soon, for I was very tired.2. The sun has risen，for the birds are singing.比较：表示原因, 译为”因为”, 表示说明、解释。
与because不同，用于解释某事的原因、动机，强调因果关系。
用语回答why引导的问句。
5)“both …and …”1. Both you and I are Chinese.2. I like both sports and music.特别用法: both…and…的否定句表示部分否定。
3. He can’t play both tennis and volleyball. 它并不是既会打网球又会打排球。
6) either…or…, neither…nor…1. Either you or she is wrong.2. Can you speak either French or English?3. Neither the teacher nor the students like this song.特别提示: 用either…or…, neither…nor…连接两个名词或代词做主语时谓语动词依照后面的词而定比较: both…and…, either…or…, neither…nor…的相互关系:肯定句: 1. I like both A and B.否定句: 2. I don’t like both A and B.= I like either A or B.否定句: 3. I don’t like either A or B.= I like neither A nor B.7)“Not only…but also…”1. Not only you but also your father is coming.(连接两个名词或代词做主语时谓语动词依照后面的词而定)2. She learns not only English but also Japanese.4、连词的辨析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．．．if．．：．．．whether．．．．．．．不能用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。