高中英语it的用法课件_(详细有高考题_精品)

1、it可用来指代前文提到的人可用来指代前文提到的人,物或事情物或事情,也可以用来指时间也可以用来指时间,金钱金钱,距离距离,天气等天气等自然现象自然现象一、基本用法一、基本用法: :1. it作人称代词作人称代词. it的最基本用法是作人称代词，主要指刚提到的事物，的最基本用法是作人称代词，主要指刚提到的事物，以避免重复以避免重复:Ningbo is a beautiful city, isnt it?.也可以指动物或婴儿也可以指动物或婴儿(不知性别不知性别/未知性别的婴儿或孩子未知性别的婴儿或孩子):Is this your dog？No, it isnt.也可指抽象事物也可指抽象事物:It

2、was a great surprise to me when he did a thing like that .用来泛泛的指某件事用来泛泛的指某件事: It is a shame, isnt it? You are going to be married this time？When is it？2.非人称代词非人称代词itit有时并不指具体的东西，而泛指天气、时间、环境等，有时并不指具体的东西，而泛指天气、时间、环境等，称为非人称的称为非人称的it：.指天气：指天气：It is a lovely day, isnt it?It is a bit windy.指时间指时间: It was

3、nearly midnight when she came back.指环境指环境: It was very quiet in the caf.指距离：指距离：It is half an hours walk to the city centre.二、形式宾语二、形式宾语: : 1. S+ think + it + necessary +( for sb. ) to do sth. The chairman thought _ necessary to invite Professor Smith to speak at the meeting.(05全国)A. that B. it C. t

4、his D. himSentence patterns:B find possiblefeelimportant /clause形式宾语形式宾语1形式宾语形式宾语2 no good3. S + V + it + + doing sth. no use I think it his duty to clean the blackboard.Sentence patterns: 2. S+ V + it + ones duty + ( for sb. ) to do sth. /clause a rulean honour Sentence patterns:Sentence patterns:形

5、式宾语句型形式宾语句型 a rule2. S+ V + it + ones duty + ( for sb. ) to do sth. /clause an honour no good3. S + V + it + + doing sth. no use find possible1.S + think + it + necessary +( for sb. ) to do sth. /clause feel important 6 主句中常用的动词：主句中常用的动词：think,believe,make,find,consider,feel； 1 形式宾语形式宾语it； 2 宾补的两种形式

6、：形容词或名词；宾补的两种形式：形容词或名词； 3 真正宾语的三种形式：真正宾语的三种形式： 不定式短语不定式短语动名词短语动名词短语引导的宾语从句。引导的宾语从句。 We think it our duty to clean our classroom. He felt it important learning English well. They found it difficult that they would finish their work in two days.形式宾语归纳形式宾语归纳该句型中的该句型中的it 作形式宾语，记忆方便作形式宾语，记忆方便-“6123结构结构”。

7、I like _ in the autumn when the weather is clear and bright.(04全国) A. this B. that C. it D. one点拨点拨: :这是这是it it作形式宾语的一种特殊用法作形式宾语的一种特殊用法. .少数动词少数动词( (如如like, love, enjoy, dislike, hate, appreciatelike, love, enjoy, dislike, hate, appreciate等等) )或或包含介词的动词短语包含介词的动词短语( (如如see to, depend onsee to, depend

8、 on等等) )后接宾后接宾语从句语从句, ,必须先由必须先由it it担任形式宾语担任形式宾语, ,再接从句再接从句. . I like (enjoy, hate) it when. I would appreciate it if see to (depend on) it thatSentence patterns:C形式宾语特殊用法形式宾语特殊用法1 enjoy, like, / love, dislike, appreciate hate, dont mind, be fond of, feel like, see to / depend on / insist on 动词动词 +i

9、t + that + clause例例 : I hate it you can dance so well but I cant. 动词动词+ it+ as+ noun/adj. + 从句从句 (把把.视为视为.) accept, regard, take, see, view例例: The speaker takes it as encouraging when many students attend his lecture. 形式宾语特殊用法形式宾语特殊用法2 动词动词 +it + to sb. + that owe it to sb. that把把归功于归功于 leave it to

10、sb that把把留给某人去做留给某人去做 take it for granted that 把把想当然想当然 keep it in mind that 把把记在心里记在心里 例例 1.Dont bother to tidy your room. Just leave it to me to do . 他想当然的以为女朋友会再回来。他想当然的以为女朋友会再回来。He took it for granted that his girlfriend would come back again.形式宾语特殊用法形式宾语特殊用法3三、形式主语三、形式主语: :1. _is necessary to b

11、e prepared for a job interview. Having the answers ready will be of great help.2. The Foreign Minister said, “_is our hope that the two sides will work towards peace.”3. _is known to everybody that the moon travels round the earth once every month.形式主语形式主语高考真题高考真题ItItIt possibleIt is / was + adj. ne

12、cessary + ( for sb. ) to do sth. / clause important saidIt is / was p.p. known + that-clause believed ones duty It is /was + n. ones hope + clause /( for sb. ) to do sth. an honour 形式主语形式主语该句型中该句型中it 是形式主语，真正的主语是是形式主语，真正的主语是that 引导的主引导的主语从句，常译为语从句，常译为“清楚（显然，真的，肯定）清楚（显然，真的，肯定）”是主语从句最常见的一种结构。是主语从句最常见的

13、一种结构。 It is very clear that hes round and tall like a tree. = That hes round and tall like a tree is very clear. 1. It is clear ( obvious， true， possible， certain.) that . 该句型中的不定式短语是真正主语，如果不定式的逻该句型中的不定式短语是真正主语，如果不定式的逻辑主语是由辑主语是由 of引起，主句中的形容词必须是能表示逻引起，主句中的形容词必须是能表示逻辑辑主语特征主语特征的形容词。的形容词。 常见的有：常见的有： bad

14、 ， brave ， careless， clever ， cruel ， foolish ， silly ， stupid good （好心的），（好心的）， honest ， horrible ， kind ， lazy ， modest ， naughty ， nice（有教养的），（有教养的）， polite， rude ， wise ， wrong（错误的）等。（错误的）等。 这个句型可以改写为：这个句型可以改写为：sb. is kind to do sth. 。 2. It is kind ( of sb. ) to do sth. It is kind of you to say

15、 so. = You are kind to say so. 该句型与上一个同属一个句型，如果不定式的逻辑主语是由该句型与上一个同属一个句型，如果不定式的逻辑主语是由for引起，主句中的形容词通常是表示引起，主句中的形容词通常是表示等情况的形容词。等情况的形容词。 常见的形容词有：常见的形容词有： important， necessary， natural easy ， safe ， common ， normal ， hard ， difficult ， dangerous ， unusual， rare ， impossible ， pleasant等。等。 在在中的形容词作表语可以用从句

16、改写，中的形容词作表语可以用从句改写， 如：如： 3. It is necessary ( for sb. ) to do sth. It is important for her to come to the party. = It is important that she (should ) come to the party.该句型和上一个同属一个句型；由于主句中的形容该句型和上一个同属一个句型；由于主句中的形容词不同，词不同，that 后的从句中要用虚拟语气（后的从句中要用虚拟语气（should + 动词原形），动词原形），should 可以省去，建议记住该句可以省去，建议记住该句型

17、中的形容词。型中的形容词。 4. It is important ( necessary， strange， natural.) that . It is important that we (should) learn English well. It is necessary that he (should) remember these words. 该句型中该句型中that 后的从句应该用虚拟语气，值得注意的是后的从句应该用虚拟语气，值得注意的是 常用过常用过去时态表示虚拟去时态表示虚拟 有时也用有时也用should + 动词原形，动词原形，should 不能不能省，常译为省，常译为是

18、（正是）的时侯是（正是）的时侯 5. It is a pity ( a shame . ) that . 该句型中，该句型中，that后的从句一般用虚拟语气（后的从句一般用虚拟语气（should + 动词原形）动词原形），should可省去表示出乎意料，可省去表示出乎意料，常译为常译为“竟然竟然”。没有这种。没有这种意义时，则不用虚拟语气。意义时，则不用虚拟语气。 It is a pity that such a thing ( should ) happen in your class. 这种事竟然发生在你们班上，真是遗憾！这种事竟然发生在你们班上，真是遗憾！ It is a pity th

19、at he is ill. 他生病了，真遗憾！他生病了，真遗憾！6. It is time ( about time ，high time ) that . It is time that children should go to bed. = It is time that children went to bed. 该句型中的该句型中的it 仍是形式主语，真正主语是仍是形式主语，真正主语是that 引导的主语从句；引导的主语从句；该结构该结构常译为据说（据报道，据悉）常译为据说（据报道，据悉）。 It is said that he has come to Beijing. It is

20、reported that another earth satellite has been put into orbit. 7. It is suggested ( ordered /demanded/insisted/commanded. ) that . 该句型和上一个同属一个句型，主句中的过去分词是表示请求，该句型和上一个同属一个句型，主句中的过去分词是表示请求，建议，命令等词时，建议，命令等词时，that后的从句要用虚拟语气（后的从句要用虚拟语气（should + 动词原形），动词原形），should 可以省；可以省；常译为据建议；有命令常译为据建议；有命令） It is sugge

21、sted that the meeting ( should ) be put off. It was ordered that we ( should ) arrive there in two hours.8 It is said (reported， learned.) that .该句型中该句型中it是形式主语，是形式主语，that 引导的是主语从句，主句中的引导的是主语从句，主句中的happen ， seem等词是不及物动词。等词是不及物动词。 9. It is the first ( second . ) time that . 该句型要和上一个句型区别开来，该句型中的该句型要和上

22、一个句型区别开来，该句型中的 that 从句不用虚从句不用虚拟语气，而用完成时态，。至于用什么完成时态，由主句的谓拟语气，而用完成时态，。至于用什么完成时态，由主句的谓语动词的时态决定。如果是一般现在时，后面从句用现在完成语动词的时态决定。如果是一般现在时，后面从句用现在完成时态；如果是一般过去时，后面从句则用过去完成时态，该结时态；如果是一般过去时，后面从句则用过去完成时态，该结构中构中 that 可以省去；可以省去；it有时用有时用 this 替换常译为替换常译为“是第一是第一（二）次。（二）次。 It is the first time I have been here. = This

23、is the first time I have been here. 10. It happens (seems， appears, comes about, turns out, looks) that. It happened ( so happened ) that he met his teacher in the street. 碰巧碰巧. It seems that he will be back in a few days. 看来看来It is ( has been ) 5 years since his father died. 11. It is . when .。该句型中

24、的该句型中的 when 引导的是一个时间状语从句，主句中的引导的是一个时间状语从句，主句中的 it 指指时间，表语由具体的时间充当，常译为时间，表语由具体的时间充当，常译为“当的时候，是当的时候，是 It was 5 oclock when he came here. 12. It be . before . 该句型主句中的该句型主句中的 it 指时间，指时间， 主句中的时态常是将来一般时或过主句中的时态常是将来一般时或过去时两种时态主句中的表语多是去时两种时态主句中的表语多是long， not long ， 3 days ， 2 weeks 等表示时间段的词或短语，常译为等表示时间段的词或短

25、语，常译为“之前。之前。It was 3 days before he went to Beijing. It will be not long before he finishes his job. 13. It is +一段时间一段时间+since . since 引导的从句通常是一般过去时态，而且是瞬间动词。如果引导的从句通常是一般过去时态，而且是瞬间动词。如果主句是一般过去时，从句则用过去完成时。主句是一般过去时，从句则用过去完成时。 It doesnt matter if they are old. 14. It takes sb. . to do sth. 该句型中的不定式是真正的

26、主语，该句型中的不定式是真正的主语，it是形式主语，句型中的直是形式主语，句型中的直接宾语是时间，常译为接宾语是时间，常译为做要花费某人做要花费某人。 It took thousands of people many years to build the Great Wall. 15. It is no good (use ) doing sth. 该句型中的真正主语是动名词短语，主句中的表语可以是该句型中的真正主语是动名词短语，主句中的表语可以是no good ， ( not any good ) ， no use ， ( not any use )。常译为。常译为“做做 没用没用”It i

27、s no good learning English without speaking English. 16. It doesnt matter whether ( if ) . 该句型中该句型中whether(if) 引导的从句是真正主语，该句型常译为引导的从句是真正主语，该句型常译为不论（是否）没关系。不论（是否）没关系。It seemed as if he were dying. 17. It looks ( seems ) as if . 该句型中该句型中it无意义，无意义， as if 引导一个状语从句。常译为，引导一个状语从句。常译为，“看起来好象看起来好象如果与事实不相符合，则

28、用虚拟语气。如果与事实不相符合，则用虚拟语气。It looks as if he is ill.（真的病了）（真的病了） It looks as if he were ill. （没有生病）（没有生病）四、四、it it引导强调句型引导强调句型: :It is/was+被强调部分被强调部分+ that(who) 用来强调谓语动词以外的任何句子成分。当用来强调谓语动词以外的任何句子成分。当被强调部分是人时也可以用被强调部分是人时也可以用who。强调句型强调句型It is the ability to do the job not where you come from or what you a

29、re _ matters. A. one B. that C. what D. itIt is / was + 被强调的部分被强调的部分 +that / who+句子其他成分句子其他成分强调句型强调句型高考真题高考真题 is或或was永远用单数永远用单数. It is books that he bought yesterday. It was yesterday that I met your father in the street只能用只能用that连接，不得使用连接，不得使用where、when等连词等连词. It was in the street that I met your f

30、ather yesterday1.It is / was + 被强调的部分被强调的部分 +that / who+句子其他成分句子其他成分使用该句型有以下几点请注意：使用该句型有以下几点请注意：强调句中强调句中 也要注意主谓一致、人称一致和否定转移的问题。也要注意主谓一致、人称一致和否定转移的问题。It is I who am responsible for the projectIt was not until ten oclock that we got home last night被强调部分为人时，可用被强调部分为人时，可用who(主格或宾格主格或宾格)和和whom(宾格宾格)代替代替t

31、hat，用，用that也行。也行。1) It was your father that/whom /who I met in the street yesterday2) It was I that/who met your father in the street yesterday注意不要混淆强调句和其他从句。注意不要混淆强调句和其他从句。It is wasthatIt is wasthat为强调句标志，去掉后仍可组成一个完整的句子，只为强调句标志，去掉后仍可组成一个完整的句子，只 是没被强调是没被强调, ,而其他从句一般不具备这一特征。而其他从句一般不具备这一特征。要点点拔要点点拔第一句

32、不是强调句，第一句不是强调句，when不可改为不可改为that,因为去掉因为去掉it was和和that后，只能组成后，只能组成“We got home ten oclock last night”这样一个不完整的句子；第二句是强调句，这样一个不完整的句子；第二句是强调句，that不可改为不可改为when比较：比较：1) It was ten oclock when we got home last night我们昨晚到家时已十点了。我们昨晚到家时已十点了。2) It was at ten oclock that we got home last night我们昨晚是在十点到家的。我们昨晚是在

33、十点到家的。= I didnt realize she was a famous film star until she took off her dark glasses. 2. It is not until + 被强调部分被强调部分 + that . 该句型也是强调句型。主要用于强凋时间状语，译成汉语该句型也是强调句型。主要用于强凋时间状语，译成汉语直到才，可以说是直到才，可以说是 not . until . 的强调形式。的强调形式。It was not until she took off her dark glasses that I realized she was a famou

34、s film star. = Not until she took off her dark glasses did I realize she was a famous film star. It was _ back home after the experiment. A. not until midnight did he go B. until midnight that he didnt go C. not until midnight that he went D. until midnight when he didnt go In which play is _ your b

35、rother appears? A. that where B. this when C. it that D. it where It was in the lab _ was taken charge of by Professor Zhang _ they did the experiment. A. where; that B. which ; where C. that ; where D. which; that强调句型强调句型被强调的部被强调的部分是分是not until引导的时间引导的时间 状语状语?强调句型用于疑强调句型用于疑问句问句, , 被强调的被强调的部分是部分是特殊疑

36、问特殊疑问词词或或从句引导词从句引导词?In which play is it that?It is thatIs it that?I dont know in which play it is that强调句型和强调句型和各种从句各种从句高考热点高考热点? It was a new book he wanted to buy. It was Tom I met in the street. 3. It was during the holiday he got to know that girl. 4. It was in the park I saw Kate crying last ni

37、ght. 5. It was he who late yesterday. 6. It was the teacher together with the boy students who in the classroom. 7. 将将1.2.句变为一般疑问句句变为一般疑问句 8.将将3.4.5.句变为特殊疑问句句变为特殊疑问句waswasthat that who that 9. is it has made Peter success? A .What that B. That what C. What what D. That that How was it that she turne

38、d down our help?Where was it that When was it that.Who was it thatWhich book is it that Whose nose is it that A A.在强调句型中考查主谓一致在强调句型中考查主谓一致It was not luck but difficulties that him success. A. makes B. make I think it is the sales manager, rather than the sales girl, who to blame. Is B. are A BB.强调句型

39、中的强调句型中的be动词与情态动词的结合动词与情态动词的结合It might have been John bought it for Mary yesterday. What B. since C. that D. when It may be next week she leaves for London.A.What B. since C. that D. whenC C C.强调句型中含有名词性从句（主语从句，强调句型中含有名词性从句（主语从句， 宾语从宾语从句，句， I have forgotten you put the dictionary. A. that it was whe

40、re B. where was it that C. that where it was D. where it was that It was at the beginning Mr.Fox made the decision he should go for a visit to the chicken. When which B. where that C.then so D. that that D D D.强调句型中含有定语从句强调句型中含有定语从句 It was in the small house was built with stones by his father he sp

41、ent his childhood. which that B. that where C. which which D. that whichIt was playing computer games cost the boy plenty of time he ought to have spent doing his lessons.A that that/which E .强调句型中含有状语从句强调句型中含有状语从句正因为他病了他才没有来。正因为他病了他才没有来。It was because he was ill that he didn come. 正是她妈妈进来时她才开始哭的。正是

42、她妈妈进来时她才开始哭的。It was when her mother came in that she began to cry. 五、五、it it固定用法固定用法: :uHow is it with your study? 学习好吗？学习好吗？uThats it . 这就对了。这就对了。uIt went hard with him. 他身遇不幸。他身遇不幸。uIt is all over with me. 我完蛋了。我完蛋了。uWe must fight it out.我们必须坚持到底。我们必须坚持到底。uI cant help it. 我没有办法。我没有办法。1. It的一些习惯用法的

43、一些习惯用法2.在一些固定用法中考查在一些固定用法中考查常见的固定用法有常见的固定用法有: make it 成功，安排在或定在某时间成功，安排在或定在某时间forget it 别提了，忘了它吧别提了，忘了它吧Dont mention it 别提了，表示不用谢别提了，表示不用谢It doesnt matter 没关系没关系It(That) depends 视情况而定视情况而定You guessed it 你猜着了你猜着了Its hard to say 很难说很难说 Its up to you to do sth.由你来决定做某事由你来决定做某事 The Parkers bought a new

44、house but _ will need a lot of work before they can move in. A. they B. it C. one D. which 2. Weve been looking at houses but havent found _ we like yet. A. one B. ones C. it D. them 3. Im moving to the countryside because the air there is much fresher than _ in the city. A. ones B. one C. that D. t

45、hose易误辨析易误辨析: :it / one / thatBACthe house that the Parkers boughta housethe air1.Its years _(since, before, after, that) I painted this beautiful picture.2.It will be years _(since, before, after, that) I paint this beautiful picture.3.It was years _(since, before, after,that) I painted this beauti

46、ful picture.4.Its for years _(since, before, after, that) I have painted this beautiful picture.易误辨析易误辨析: : 表示从表示从since since 从句谓语动作发生以后到现在所经过的一从句谓语动作发生以后到现在所经过的一段时间，译为段时间，译为“自从自从.以来已多久了以来已多久了” ” It is +时间段时间段+since(过去时过去时).表示从表示从过去过去某一时间到某一时间到beforebefore从句谓语动作发生所经过从句谓语动作发生所经过的一段时间的一段时间, ,译为译为“多长时间

47、后才多长时间后才/ /就做了就做了”It + was + 时间段时间段 + before(过去时过去时)表示从表示从现在现在起到起到beforebefore从句谓语动作发生所经过的一段从句谓语动作发生所经过的一段时间时间, ,译为译为“多长时间后才会多长时间后才会/ /就会做就会做”It + will be +时间段时间段 +before(一般现在时一般现在时)_Translate the following: 过了很久他才回来. 2. 我们很久后才会见面的. 3. 我离开这所学校已经很久了.It was long before he came back.It will be long bef

48、ore we meet again.It is long since I left this school.It is +时间段时间段+since(过去时过去时).It + will be +时间段时间段 +before(一般现在时一般现在时)It + was + 时间段时间段 + before(过去时过去时)易误辨析易误辨析: :1. (2005, 全国全国) The doctor advised Vesa strongly that she should take a holiday, but _ didnt help. A. it B. she C. which D. he 正确答案：正

49、确答案：A。根据句意：医生的建议未起作用。根据句意：医生的建议未起作用。it代替整个句子。代替整个句子。 2. (2004,全国全国) -Do you like_here? -Oh, yes. The air, the weather, the way of life. Everything is nice. A. this B. these C. that D. It 正确答案：正确答案：D。根据下文，提问者不能确定被问者喜欢什么，。根据下文，提问者不能确定被问者喜欢什么，it用用于不确定指代或模糊指代。于不确定指代或模糊指代。 3. (2000,上海上海) Someone is ringi

50、ng the doorbell. Go and see_. A. who is he B. who he is C. who is it D. who it is 正确答案：正确答案：D。说话时，不知道对方的性别。注意在宾语从句中。说话时，不知道对方的性别。注意在宾语从句中需用陈述语序。需用陈述语序。 4. (2007, 全国全国)Have you heard the latest news? No, what _? A. is it B. is there C. are they D. are those 正确答案：正确答案：A。it指代上文提及的指代上文提及的latest news。5.

51、(2006,全国全国) If I can help _, I dont like working late into the night. A. so B. that C. it D. them 正确答案：正确答案：C。help是是“阻止、避免阻止、避免”的意思，的意思，it指代下文的事指代下文的事情。情。6. (2002,北京北京) -He was nearly drowned once.-When was _? -_ was in 1998 when he was in Middle School. A. that, It B. this, This C. this, It D. that

52、, This 正确答案：正确答案：A。it指时间。指时间。 7. (2005，浙江，浙江) Weve been looking at the houses but havent found _ we like yet. A. one B. ones C. it D.them 正确答案：正确答案：A。表示任意一幢房子。表示任意一幢房子。 8.（2005，江苏），江苏）Im moving to the countryside because the air there is much fresher than _ in the city. A. ones B. one C. that D. tho

53、se 正确答案：正确答案：C。分析语境和逻辑关系可以知道：该空指代。分析语境和逻辑关系可以知道：该空指代the air，且有且有in the city后置定语修饰。后置定语修饰。9. (2004,北京北京) The Foreign Minister said, “_ our hope that the two sides will work towards peace. A、This is B、There is C、That is D、It is 正确答案：正确答案：D由句意易知：由句意易知：that从句是真正的主语从句是真正的主语;it为形式主语。为形式主语。10. (2005,上海上海)_

54、in the regulations that you should not tell other people the password of your e-mail account. A. What is required B. What requires C. It is required D. It requires 正 确 答 案 ：正 确 答 案 ： C 。 i t 为 形 式 主 语 ， 在 此 结 构 中为 形 式 主 语 ， 在 此 结 构 中 d o n e 为为required/suggested/demanded/recommended等时，从句必等时，从句必须用须用s

55、hould + 动词原形，且动词原形，且should可以省略。可以省略。11. (2004,上海春上海春) It was foolish of him to _ his notes during that important test, and as a result, he got punished. A. stick to B. refer to C. keep to D. point to 正确答案：正确答案：B。短语辨析题，短语辨析题，refer to有有“参考参考”的意思，符合句的意思，符合句意。意。12. (2006,全国全国) It is no _ arguing with Bi

56、ll because he will never change his mind. A. use B. help C. time D. way 分析：正确答案：分析：正确答案：A。为固定结构。为固定结构。13. (2007,天津天津)He didnt make _ clear when and where the meeting would be held. A. this B. that C. it D. these 正确答案：正确答案：C。it为形式宾语，为形式宾语，clear后的从句为真正的宾语。后的从句为真正的宾语。14. (2006,湖南湖南)As the busiest woman

57、 in Norton, she made _ her duty to look after all the other peoples affairs in that town. A. this B. that C. one D. it 正确答案：正确答案：D。真正宾语为不定式。真正宾语为不定式。 15. (2005,江苏江苏)Dont you think it necessary that he _ to Miami but to New York? I agree, but the problem is _ he has refused to. will not be sent; that

58、 B. not be sent; thatC. should not be sent; what D. should not send; what 正确答案：正确答案：B。表示表示“理应如此理应如此”需用需用should动词原形，动词原形，should可以省略。在做可以省略。在做it形式宾语和形式主语的复合句中如果形式宾语和形式主语的复合句中如果从句表示的是从句表示的是“惊奇、惋惜或者理应如此惊奇、惋惜或者理应如此”等含义时，需用等含义时，需用should动词原形，动词原形，should可以省略。可以省略。16、(2004,全国全国) I like _ in the autumn when t

59、he weather is clear and bright.A、this B、that C、it D、one 正确答案：正确答案：C。love/enjoy/hate和和like的用法相同，后接宾语从的用法相同，后接宾语从句时需用句时需用it作形式宾语，宾语从句后置。作形式宾语，宾语从句后置。 17、(2003,上海上海) I would appreciate it _ you call back this afternoon for the doctors appointment.A、until B、if C、when D、that正确答案：正确答案：B。18. (1998，上海，上海) D

60、ont _ that all those who get good grades in the entrance examination will prove to be most successful. A. take as granted B. take this for granted C. take that for granted D. take it for granted 正确答案：正确答案：D。take it for granted that 意为：想当然的认为某意为：想当然的认为某事。事。it为形式宾语，真正的宾语为为形式宾语，真正的宾语为that从句。另外我们也应该注从句。