代词在近几年高考试题中的复现率为100%，每年至少测试一道题。测试代词常用对话形式，构成特定语境，考查考生灵活运用代词的能力。以下是学习啦小编为大家编辑的英语学习方法文章，仅供考生参考，欢迎大家阅读!
高考英语复习知识点：代词
代词指代的范围、作主语时主谓一致的用法、易混不定代词的细微差别都是高考的必考点。其中不定代词one，the one，ones与that，those，it的用法区别。
考点一? 考查one(s), that, those, it的用法
[考点解读]
● one泛指一个人或物?其复数形式为ones? one和the one作同位语时,如果与其同位的词语是特指,则用the one;如果是泛指,则用one,?
● that指代前面提到过的名词,常有后置定语? that的复数形式是those? that可指代单数可数名词(= the one), 也可指代不可数名词,或指代前面提到过的一件事?
● it可指代前面提到过的一个名词,如例7;指代一件事,如例8;指代不明性别的婴儿或不明确的人,也可指代时间?天气?距离等0?
二? 考查all, both, either, neither, none, no one的用法
[考点解读]
● both表示两个人或物都,具有肯定含义; either表示两者中的任何一个,如例13; neither表示两者都不?
● all表示全部,指三者或三者以上的人或物,;all也可笼统地表示一切,所有, none表示三者或三者以上的人或物的全部否定,在与of连用或回答how many/much的提问时只能用none, no one表示没有一个人,
三? 考查another, the other, others, the others的用法
[考点解读]
● another泛指三个或三个以上的人或物中不确定的另一个,如例19? another还可以作形容词,表示另一个的
● the other指已知的两个人或物中的另一个
● others和other + 名词均泛指别的人或物
● the others指一定范围内其余的人或物,如例23?如果被指代的名词是不可数名词,则用the rest替代,
四? 考查(a) little, (a) few, some, any的用法
[考点解读]
● few和little可用作代词和形容词? few和a few可以修饰或代替可数名词复数? few有否定含义, a few有肯定含义, little和a little可以修饰或代替不可数名词? little有否定含义, a little含肯定含义?
● some和any表示一些,可用作代词和形容词? some用于肯定句,例31; any用于否定句?疑问句和条件句中, some也可用于疑问句,如例32和例33; any也可用于肯定陈述句中,表示任何一个。
五? 考查something, somebody, someone, anything, anybody, anyone, nothing, nobody, everything, everybody的用法及它们与else的搭配
[考点解读]
● 由some和any构成的不定代词的用法和some和any的用法基本一致?
● nothing和nobody/no one表示全部否定?
● 无论在肯定句?否定句还是疑问句中, everything和everyone (everybody) 都表示全部,所有?
● 不定代词后跟else时,表示另外的,其他的形容词修饰something/anything/nothing时,应置于不定代词之后?以上不定代词连写时,不和of连用,every one可和of连用?
【精选试题】 名校模拟题及其答案
1. I agree with most of what you said, but I dont agree with ______.
A. everything B. anything
C. something D. nothing
2. What do you think of them? I dont know _____ is better, so Ive taken _____ of them.
A. what, both B. what, none
C. which, both C. which, none
3. Would you like a cup of coffee or a glass of beer? ____ will do, but milk is _____ popular with me.
A. Neither, not B. Both, more
C. Either, the most D. All, the most
4. I read about it in some book or other, does it matter _____ it was?
A. where B. what
C. how D. which
5Who told you? Oh, somebody or other, Ive forgotten _____.
A. what B. when
C. which D. who
6.Some of the students were late for the meeting, but I cant remember _____.
A. what B. when
C. which D. whom
7. These trousers are dirty and wet Ill change into my _____.
A. another B. trousers
C. others D. other
8. Her lecture was hard to follow because she kept jumping from one subject to _____.
A. other B. the other
C. the others D. another
9. There are four bedrooms, ______ with its own bathroom.
A. all B. each
C. every D. either
10. Its said that he is a wise leader. Oh, no, he is _____ but a wise leader.
A. anything B. anyone
C. anybody D. anywhere
11.I didnt make clear when and where the sports meet would be held.
A.this B that C it D one
12 To tell you the truth..really dont like when people talk with you with their eyes stating into the sky.
A.which B that C it D.what
13.一Which one can I take?
一You can take of them;Ill keep none.
A.both B.any C.either D.all
14.一Which coat would you prefer.sir?
一Ill take ,to have n change sometimes.
A.allthem
B.them dl C.both them D them b0Ih
15.The movie is boring;it is，in fact，rather exeiting and interesting
A anything but B nothing but C no more D all but
16 Alan sold most of his belongings.He has hardly left in the house
A.everything B.anything C.nothing D something
17.I have been lived in Shanghai for two years.butI havent covered of the city
A.anything
B.much C many D plenty
18.She kept looking behind to see if she was being followed
A her B.herself C.her own D.she
19.All of us want very much to see these recommended movies，especially you referred to jusl now.
A as B which C the one D that
20.If a studem can make what has been learned whether in class of from social practice ,he will make steady progress.
A he B him C himself D his
21.一Do you want tea or coffee?
一 really dont mind
A.None B Neither C Either D All
22.The manager believes prices will not rise by more than four percent.
A.any other B the other C another D other
23.The manager was very angry，for he had sent his business partner two thousand machines yesterdy，half of unqualified.
A.whom B what C them D.which
24一Did you visit many places while you were in Canada?
一Yes,
A.afew quite B only few C.only afew D quite few
25 In somecountries， is callede quality does not really mean equal rights for all people
A that B what C which D how
26一May I have a glass of beer.please?
一Beer?Sorry，there is left，but would you mind having,some juice instead?
A none B.no one C nothing D few
27.一When can we goto visit you?
一Anytime you feel like
A.one B it C so D thal
28 We need a more capable leader， with strong will as well as good humour.
A who B.that C.one D.which
29.The number 2008 is a special number， I think，that will be remembered hy the Chinese forever.
A.which B what C one D.it
30.一How do you like his wife?
一She is like a good housekeeper，for the childrens room is always in a terrible mess.
A Somebody B nobody C something D.nothing
答案与解析
1【解析】此题应选 A，注意前文的 I agree with most of what you said(我同意你说的大部分内容)，其后的not 与 everything 构成部分否定，意为不是所有的都同意，前后两部分用转折连词 but 连接，语气通顺、连贯。
2【解析】最佳答案为C。做好此题的关键是要注意句中的 better 一词，由于better 用的是比较级，说明比较的对象应是两者，由此可推知第二空应填both;另一方面，由于所谈论的是两者，说明选择范围比较窄、比较明确，所以第一空应填 which。
3【解析】做对此题的关键是要注意到下文提到的 milk既不是 coffee 也不是 beer，而是除这两者外的第三者，故第二空应填 the most，即此题最佳答案为C。
4【解析】此题答案选D，主要与上文的some book or other (某一本书)这一语境有关，全句句意为：我在某一本书上读到过它，是哪一本书这很重要吗?
5【解析】此题最佳答案为D。句意为：谁告诉你的?噢，有个人，我忘记是哪一个了。
6【解析】此题最佳答案为C。句意为有些学生开会迟到了，但我不记得是哪些学生了。
7【解析】最佳答案为C。是从语法上看，another 后通常接单数名词，而不接trousers 这样的复数名词(若用 another pair 则可以);也不能选 trousers 是因为填它句子意思不通。最佳答案应选C，others 相当于 other trousers，其中的 other 与前面的 these 相对照。
8【解析】最佳答案为D。使用one the other 时，我们通常是针对两者而言的，即指两者中的一个，另一个如果所谈论的情况不是针对两者而言的，而是针对多者而言的，那么我们就不宜在 one 后使用 the other，而考虑用 another。
9【解析】此题容易误选A，认为既然前面出现了 four bedrooms，故填 all 与之对应。其实，此题的最佳答案应为B，原因是空格后的隐藏信息 its，它表示空格处应填一个单数代词，但是不能选C，因为 every 不能这样单独使用。
10【解析】正确答案应选A。因为 anything but 是习语，意为根本不是或一点也不，不仅可用于事物，也可用于人。如：
Ill do anything but that. 我绝不会干那种事。
The party was anything but a success. 晚会根本不成功。
Her father was anything but a poet. 她父亲根本不是诗人。
Such a man was anything but a hero. 那样的人绝不算英雄。
11 C。【解析】it代替后面的when and where引导的从句。其他选项均无此用法。
12 C。【解析】考查代词。1t指代空格后面的内容。
13 D。【解析】考查不定代词的用法。句中的none说明所拿走的东西至少有三个，而且后句表示可以全部拿走，所以答案选D。
14 D。【解析】句中的prefer说明是在两者之间进行选择，排除A、B。both修饰代词或名词应为botll of them或they both。所以答案应为D。
15 A。【解析】考查代词短语。anything but t表示根本不，决不;nothing but仅仅，只有，all but几乎，差不多。由下文实际上，这个电影相当令人兴奋和有趣可知，上句应为这个电影根本不乏味。故答案选A。
16 B。【解析】从题意可知.Alan把大部分财产都变卖了，房里几乎没有什幺东西了。用anything与否定词连用，hardly anything=nothing，故答案选B。
17 B。【解析】表示整体中的一部分，且这个整体是单数或不可数名词时，前面的代词用much。故答案选B。
18.B。【解析】此处表示往自己身后看.故用反身代词作宾语。
19 C。【解析】考查代词的用法。The one特指you referred to jusl now.。
20 D。【解析】句意为如果一个学生能将无论是通过课堂还是社会实践学到的东西变成自己的东西，他将会取得稳定的进步。此处是名词性物主代词，作宾语补足语。故答案选D。
2l C。【解析】考查代词none，neither，either，all的用法。根据上句可知，此处是在两者之间进行选择，而且从后一句的我真的不介意可知回答者的意思是两者中哪一个都可以，所以答案选C。
22 C。【解析】考查不定代词的用法。题干中的意思是价格不会再增长超过4%。any other任一其他的;the other(两者中)另外一个;another另外.又，放在数词前面;other表示另外，和more一样，要放在数字的后面。故答案选C。
23 C。【解析】考查人称代词作独立主格的逻辑主语。句意：经理非常生气，因为他已发给他商业伙伴两千台机器，其中一半有质量问题。half of unqualified.是独立主格结构，half of 是unqualified的逻辑主语，of是介词，所以此处要用宾格。
24 C。【解析】quite修饰名词时要放在冠词前，排除选项A，选项B、D都表示几乎设有的意思，只有选项c表示有几个。根据下句的肯定回答可知答案选c。
25 B。【解析】此处为what引导名词性从句，what在从句中作主语。
26 A，【解析】此处none指代none of the beer，其他选项均不符合句意。
27 B。【解析】lt用来指代上文所提到的内容。
28.C。【解析】考查代词辨析。此处应用one作a more capable leader的同位语。句意：我们需要一个更有能力的领导，一个意志坚定又富有幽默感的领导。
29 C。【解析】这里one指代前面的a special number，hat will be remembered hy the Chinese forever.是修饰one的定语从句，I think是插入语。
30 D。【解析】根据下文for the childrens room is always in a terrible mess.可知，D为正确答案，考生应注意对She is nothing like a good housekeeper的正确理解，其意思是：她完全不像是一个好主妇。
高考英语复习知识点：数词与连词
数词一般与其它知识综合起来考察，比如倍数的表达方法，多个形容词的排列顺序等。近几年语境综合化程度越来越高。
连词按其性质,分为并列连词和从属连词,考点分布在单项选择?完形填空和短文改错中?《英语教学大纲》和《考试大纲》语法项目表中对连词的考查是这样描述的:掌握词汇表中所列连词的用法?即要求考生分析句子成分,把握语境和逻辑关系,恰当选择合适连词,使句意通顺,逻辑清楚?连接代词或连接副词用于名词性从句,统称连接词?
连词考点透析
考点一、?特殊并列连词while/when
例1. I had just stepped out of the bathroom and was busily drying myself with a towel _______ I heard the steps. (2006年高考湖南卷)
A. while
B. when
C. since
D. after
例2.Id like to study law at university _______ my cousin prefers geography. (2007年高考四川卷)
A. thoughB. as
C. while
D. for
[解析]B?C?作并列连词时,when/while用法较为特殊,二者区别是:while表两相对照;而when表突然?在那时,常见于be about to do...when和hardly...when等句型中?
考点二、表示原因的连词for/because/as/since
例3.He found it increasingly difficult to read, _____ his eyesight was beginning to fail.(2006年高考北京卷)
A. and
B. for
C. but
D. or
例4.Jenny was very sad over the loss of the photos she had shot at Canada, ______ this was a memory she especially treasured. (2006年高考广东卷)
A. as
B. if
C. when
D. where
例5.Parents should take seriously their childrens requests for sunglasses ________ eye protection is necessary in sunny weather.(2004年高考上海卷)
A. because B. though
C. unless
D. if
例6._____ everybody knows about it, I dont want to talk any more.
A. For
B. Even
C. Since
D. However
[解析]B?A?A?C?引导原因连词,as/because/ since/ for的区别是:because语势最强,用来说明人所未知的原因,回答why提出的问题,可置于强调句中且其前可加修饰语; since是双方都知晓原因或经过分析而得之的原因,语气次之;for是并列连词,前用逗号隔开,表逻辑推理或补充说明;as语气最弱,原因是显而易见的或已为人们所知,即已知原因,所引导的分句可置于句首?
考点三、并列连词but/yet/though
例7. Excuse me for breaking in, ______ I have some news for you.
A. so
B. and
C. but
D. yet
[解析]C?but和yet 是连词,可等同使用,但也有区别?yet与and连用,构成and yet,但but却无此用法;在Excuse me/Im sorry/I hope you dont mindbut中,只用but,不用yet?因为在表示对照或对立时,but较为轻松自然;而yet却较为强烈,常出人意料;though作并列连词时,只能引导分句且其前须加逗号?例:Ill try to come, though I dont think I shall manage it.
考点四、引导名词性从句的从属连词that/whether/if
例8.The traditional view is ______ we sleep because our brain is programmed to make us do so. (2007 年高考上海卷)
A. when
B. why
C. whether
D. that
例9.We havent settled the question of _____ it is necessary for him to study abroad. ( 2006年高考江苏卷)
A. if
B. where
C. whetherD. that
[解析]D?C?引导名词性从句的从属连词that与whether的区别是:句子成分完整且表意确定时选用that连接,句意不确定时选用whether/if连接;借助it,将真正主语或宾语后置,构成Itthat句型,但whether/if不可;下列情形用whether不用if:与or not 连用,中间无其他词隔开;作介词宾语;在主语从句?表语从句和同位语从句中?例:
Whether well go camping tomorrow depends on the weather.
考点五、表示比较的从属连词what/as
例10. Engines are to machines ______ hearts are to animals. (2006年高考山东卷)
A. as
B. that
C. what
D. which
例11._____ I explained on the phone, your request will be considered at the next meeting.(2005年高考浙江卷)
A. WhenB. After
C. As
D. Since
例12.What a table! Ive never seen such a thing before. It is ________ it is long.(2005年高考湖北卷)
A. half not as wide as
B. wide not as half as
C. not half as wide as
D. as wide as not half
[解析]C?C?C?what用作从属连词,表比较,用于A is to B what C is to D结构中;而as表示原级比较,常用于as...as结构中,程度修饰语应置于第一个as之前,嵌入的形容词或副词使用原级?另外as还表正如?按照,引导方式连词?
考点六、表示条件的从属连词if /unless/as long as/once
例13. ________ I know the money is safe, I shall not worry about it.
A. Even thoughB. UnlessC. As long asD. While
例14.Small sailboats can easily turn over in the water ____ they are not managed carefully.(2007年高考上海卷)
A. though
B. before
C. until
D. if
例15.You will be successful in the interview ____ you have confidence. (2007年高考福建卷)
A. before
B. once
C. until
D. though
例16.I wont call you, _____ something unexpected happens.(2007年考全国卷)
A. unlessB. whether C. becauseD. while
[解析]C?D?B?A?表条件的连词if/unless/as long as/unless在用法上存在一些差异?as long as用法同only if/on condition that,强调某事的发生以另一事件的发生为前提;if为正面条件,可能会产生好的或坏的结果,若某种条件产生坏的结果,此时的if可用as long as替换; unless为反面条件,表示除非,如果不,故在真实条件句中常和ifnot换用;once既表时间,又包含条件,译作一旦?
考点七、表示让步的从属连词although/when/while
例17. We had to wait half an hour _______ we had already booked a table. (2007年高考辽宁卷)
A. sinceB. although
C. until
D. before
例18.______I really dont like art, I find his work impressive. (2007年高考山东卷)
A. As
B. Since
C. If
D. While
【解析】B?D?although/when/while均可表示让步,后两者的用法较为特殊?although/though引导让步连词时不与but和yet连用;而while却表示部分接受,但并非全部,或用于强调两种情况?活动等之间的差距when也可表示虽然,尽管,同even if,常置于句末?
【精选试题】 名校模拟题及其答案
1.China won 100 medals in the Beijing Olympic Games，which are almost those of the sydney Olypic Games.
A. twice as many as B.as many as twice
C.as much as twice D twice as much as
2. Hawking became world-famous in 。
A his thirties in the 1970s B.the thirties in his 1970
C.his thirties in 1970s D.the thirties during the 1970
3.Wed better hurry up. of the time used up.
A Two-thirds：are B Two-thirds;has been C.Two-third：is D.Two-thirds;have been
4.一What canI dofor you?
一Id like to take these tomatoes.
A two dozen of B two dozen C.two dozens D two dozens of
5.一How long will you stay here?
一For .
A a day or two B.one day and two
C one or two day D one and two day
6.I bought a big fridge，which ccupied about of the space in my kichen.
A two five B two-fifth C.second fifth Dtwo-fifth
7. The weight of a male lion can reach 240kg, an adult man，while a lioness call reach up to 180kg
A the three times weght of B.three times the weisht of
C.as three times heavy as D.three times as heavier as
8. he said he wasnt hungry at all，he ate a big breakfast.
A. Unless B.Because C.Though D.If
9. the Olympic Games cost us a lot，it bridged the distance between people and developed friendship.
A.What B.While C If D.As
10. the interview in Boston lasted so long，I missed my connecting flight to New York.
A Due to B.So long as C As D.Despite
11.Our government took measures in time to protect children who had taken Sanlu baby milk powder it was too late.
A now that B as long as C unless D before
12 As long as I call remember, I called，his wife would answer the phone.
A however B whenever C whatever D.whichever
13. Countless people in developing countries no longer suffer from malnutrition. ，poverty remains a problem worldwide.
A While B Nevertheless C.Besides D In addition
14.Im sorry youve been waiting for us so long，but its still be some time the meeting starts.
A before B since C till D after
15.一Would you like to go to see the filmTHE KNOT with me?
一Sorry. I have seen it.
A though B.unless C.when D but
16. Childrens brains cant develop properly they lack protein
A when B since C because D unless
17. the two are only days apart in age，they seem to belong to wholly different generatioas.
A While B If C As D.Since
18.They dont have much in their house yet.
一 theyplanning to live here only until Bob gets his degree，they dont want to buy much furniture.
A.Since B While C Although D Aslong as
19.Love is just a word someone ecomes along and gives it meaning.
A.if B.until C after D when
20.All people, they are old or young，rich or poor，have been trying their best to help those in need since the disaster
A even if B whether C no matter D however
21. Shall we stop for lunch _____ shall we drive on? Lets stop for lunch, but the driver cant drink _____ drive.
A. and, and B. or, or
C. and, or D. or,and
22. _____ when does the pub stay open? About midnight.
A. Since...B. Before
C. Until...D. After
23. Would you like tea _____ coffee? _____, thanks.
A. or, No B. and, Either
C. or, Neither D. and, Each
24. He imagines that people dont like him, _____ they do.
A. and B. then
C. so D. but
25. I firmly believe _____ he said at the meeting was right.
A. that B. which
C. that what D. what that
26. Will you deliver, _____ do I have to come to the shop to collect the goods?
A. and B. or
C. so D. then
27 Id like to study law at university _______ my cousin prefers geography.
A. though
B. as
C. while
D. for
28(2007年高考北京卷).He found it increasingly difficult to read, _____ his eyesight was beginning to fail.
A. and
B. for
C. but
D. or
29Excuse me for breaking in, ______ I have some news for you.
A. so
B. and
C. but
D. yet
30. The traditional view is ______ we sleep because our brain is programmed to make us do so.
A. when
B. why
C. whether
D. that
【答案与解析】
1 A。【解析】考查倍数表达法。此处符合A+谓语动词+倍数十as+adj/adv(原级)+as+B结构。
2 A。【解析】考查数次的用法。in ones thirties意为在某人三十多岁时，in/during the 1970os意为在20世纪70年代。
3 B。【解析】考查分数的用法及主谓一致。分子大于二时分母的序数词要加s。Two-thirds of time作主语，谓语动词用单数，故答案选B。
4 A。【解析】dozen，score前面有基数词时，dozen和score不能用复数形式，后面通常也不能接of。但当名词前有the，those，these修饰时，则后面必须加上of，表示中的。故答案选A。
5 A。【解析】a day or two是习惯说法，意思是一两天，也可以a day or two days。
6 D。【解析】考查分数的构成。分子大于二时分母的序数词要加s。
7 B。【解析】考查倍数的表达方法。此处应运用倍数+the+名词+of结构。
8 C。【解析】此处thought引导让步状语从句。句意：尽管他说不饿，但早餐他吃了很多。
9 B。【解析】考查连词while的用法。根据语境可看出此处需要填人一个表示让步意义的词，whtle在此为从属连词，意为尽管。
10C。【解析】考查连词as的用法。从题意看，前半句应该是原因，后面是结果。due to由于，表原因，是介词短语，不能跟句子;So long as只要，引导让步状语从，.Despite尽管是介词，不能跟句子;as意思是由于。故答案选C。
11 D。【解析】考查连词before的用法。句意：在事态严重之前，我国政府及时采取措施来保护那些喝了三鹿婴幼儿奶粉的孩子们。
12 B。【解析】whenever此处是无论何时的意思，相当于no matter when。
13 B。【解析】结合语境可知，B是正确答案。Nevertheless然而，不过。
14.A。【解析】考查连词的用法。it11 still be some time before是一个句型，表示在之前有一段时间了。
15 D。【解析】考查连词的用法。句意：一你和我一起去看电影《云水谣》好吗?一对不起，我已经看过丁。根据题意可知，答案应该选D。
16 A。【解析】本题中when引导的是一个条件状语从句，相当于if。句意：如果孩子缺少蛋白质，他们的大脑就会发育不良}，
17 A。【解析】考查连词while的用法。句意：尽管这两个人的年龄只有几天之差，但是看起来完全不像是一代人。
18 D。【解析】考查连词since的用法。根据题意可知，此处表原因，故答案选D。
19 B。【解析】untill直到为止。句意：爱只是一个字，直到某人出现并给予它真正的内涵。
20 B。【解析】考查固定措配whetheror的用法，句意：自从那次灾难以后，所有的人，不论老人还是年轻人、富人还是穷人，都在努力帮助那些需要帮助的人。
21.【解析】选D，第一空填 or，表选择;第二空填 and，cant drink and drive 指不能同时既喝酒又开车，即不能酒后开车。
22.【解析】选C，句意为这家酒店开门到什么?(或这家酒店什么时候关门?)
23. 【解析】选C，选项A用No来回答选择疑问句，不妥;选项B用 and 连接 tea 与 coffee，说明问句并非提供选择，而答语却用了 either 这样表选择性的词语，也不妥;选项D与语境不符。
24. 【解析】 选D，前后意思转折，故选 but.注：but they do = but they like him.
25【解析】选C，that 为引导宾语从句的连词，在 that what he said at the meeting was right 这一宾语从句中，又包含有what he said at the meeting 这一主语从句，而在该主语从句中，what用作动词 said 的宾语。
26【解析】选B，or 表选择。
27 [解析] C?作并列连词时,when/while用法较为特殊,二者区别是:while表两相对照;而when表突然?在那时,常见于be about to do...when和hardly...when等句型中?
28 [解析]B引导原因连词,as/because/ since/ for的区别是:because语势最强,用来说明人所未知的原因,回答why提出的问题,可置于强调句中且其前可加修饰语; since是双方都知晓原因或经过分析而得之的原因,语气次之;for是并列连词,前用逗号隔开,表逻辑推理或补充说明;as语气最弱,原因是显而易见的或已为人们所知,即已知原因,所引导的分句可置于句首?
29[解析]C?but和yet 是连词,可等同使用,但也有区别?yet与and连用,构成and yet,但but却无此用法;在Excuse me/Im sorry/I hope you dont mindbut中,只用but,不用yet?因为在表示对照或对立时,but较为轻松自然;而yet却较为强烈,常出人意料;though作并列连词时,只能引导分句且其前须加逗号?例:Ill try to come, though I dont think I shall manage it.
30. [解析]D引导名词性从句的从属连词that与whether的区别是:句子成分完整且表意确定时选用that连接,句意不确定时选用whether/if连接;借助it,将真正主语或宾语后置,构成Itthat句型,但whether/if不可;下列情形用whether不用if:与or not 连用,中间无其他词隔开;作介词宾语;在主语从句?表语从句和同位语从句中?