高考英語必考點：it的固定句式
育路網(wǎng)整理了高考英語必考點：it的固定句式，希望大家能認真復(fù)習(xí)這些必考點!
第一，it作形式主語的常見句型?
(1)it替代動詞不定式的常見句型為：?
①It+ be+ adj+ (for sb.) to do sth. ?
此處的形容詞通常為描述事件的形容詞：easy, difficult, hard, necessary, unnecessary, possible等。如：?
It is illegal for a teenager to drive a car without a license. ?
�、贗t +be+ adj.+of sb. to do sth. ?
此處的形容詞通常為描述人的形容詞：kind, unkind, nice, rude, cruel等。如：?
It’s kind of you to help me with the problem. ?
(2)it替代動詞-ing的常見句型： ?
It’s no good/use doing...?
It’s (well) worth doing...
如：It’s no use crying over spilt milk. ?
(3)it替代從句的常見句型： ?
�、買t +be+n.+that從句?如：?
It is no secret that the president wants to have a second term in office.??
�、贗t +be+adj.(important, necessary, surprising...)+that從句 ?
從句中的謂語動詞用"should+動詞原形"形式，且should可省略。如：?
It’s important that you should apologize to her for your rudeness.
�、跧t +v.+sb.+that從句= It +be+ v-ing +that從句?如： ?
It worried me that she drove so fast.(= It was worrying that she drove so fast.) ?
�、躀t+v.(+to sb.)+ that從句 ?
常用動詞或短語有appear, seem, come about, emerge, follow, chance, happen, occur, transpire, turn out, work out等。如： ?
It (so) happened/chanced that they were out.(= They happened/chanced to be out.) ?
�、軮t +be+ v-ed +that從句 ?
常用動詞有say, report, think, believe, hope, expect, agree, accept, decide, determine, intend, plan, understand, know等。如： ?
It is said that the couple have gotten divorced.(=The couple are said to have gotten divorced.) ?
�、轎t +be +v-ed + that...(should)...?
常用動詞有demand, request, require, order, suggest, advise, recommend等。如：?
It is suggested that they should begin with the third question.
第二，it除了作形式主語外，也可以作形式賓語，如動詞find, think, consider, feel, make等，這些詞后常用it作形式賓語，替代其后的動詞不定式或從句。此外，英語中動詞appreciate, enjoy, like, dislike, love, hate, prefer等之后，常用it作形式賓語，替代其后的when/if從句。如：?
I find it interesting to talk with her. 我覺得與她聊天很有趣。?
I think it possible that she would like to help you. 我認為她幫助你是有可能的。?
【典例1】
__is the sun that gives off light and heat, which makes __possible for plants to grow.?
A. It; it B. That; those ?
C. This; it D. This; them??
{錯因分析} 如果考生對it作形式賓語及含it的強調(diào)句型掌握得不牢固，就會造成誤選。
{解析} 分析句子結(jié)構(gòu)可知，第一空考查強調(diào)句型的基本結(jié)構(gòu)：it is/was+被強調(diào)部分+that+句子的其他部分，故用it;第二空用it作形式賓語，其真正的賓語是后面的動詞不定式。答案為A項。
【典例2】
To her joy, Della earned first the trust of her students and then ?__of her colleagues.?
A. that B. one?
C. ones D. those?
{錯因分析} 很多考生看到橫線后的of就錯誤地選擇了B、C項，沒有弄清句子要表達的意思。?
{解析} 句意：使她高興的是，Della首先贏得了她的學(xué)生的信任,然后又獲得了同事的信任�？蘸竺娴�"of her colleagues"與前面的"of her students"是同樣的結(jié)構(gòu)，因此此空應(yīng)該選擇that來替代the trust，以避免重復(fù)。答案為A項。?
【典例3】
I’d appreciate __if you could let me know in advance whether or not you will come.(2014·陜西)
A. it B. you?
C. one D. this?
{錯因分析} 考生如果沒有掌握這個知識點"英語中動詞appreciate, enjoy, like, dislike, love, hate, prefer等之后，常用it+when/if從句"，在做此題時就很容易誤選選項。?
{解析} 句意：如果你能夠讓我提前知道你是否要來，我會非常感激。根據(jù)句子的結(jié)構(gòu)，此空在句中作形式賓語，而真正的賓語為if所引導(dǎo)的從句，故要用it。故答案為A。?
第三，含it的固定用法
forget it沒關(guān)系，休想，不必在意?
get it 明白了，理解了，知道了 ?
I can’t help it我沒辦法 ?
make it 獲得成功，幸免于難?
as it is 照現(xiàn)狀?
It depends.看情況而定。?
Don’t mention it.不客氣。
Take it easy.別著急。?
believe it or not 信不信由你?
see to it that ... 確保……?
depend upon it ...請相信……?
take it for granted that...認為……?是理所當(dāng)然的?
It makes no difference at all.一點關(guān)系也沒有。?
It’s hard to say.很難說。?
It won’t do.不行。?
fight it out 辯論出結(jié)果?
How comes it?這是怎么搞的??
make a day of it 痛痛快快玩一整天?
nothing for it 別無他法
高考英語必考點：it的固定句式就分享到這里了，希望能幫助大家做好高考第一輪基礎(chǔ)知識的復(fù)習(xí)，請繼續(xù)關(guān)注育路網(wǎng)!
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