高二英語(yǔ)語(yǔ)法知識(shí)點(diǎn)歸納--it
十幾年前，社會(huì)上就流傳著這樣一句話：未來(lái)幾年人類必須掌握的三大技能是英語(yǔ)、駕駛、計(jì)算機(jī)。下面為大家推薦了高二英語(yǔ)語(yǔ)法知識(shí)點(diǎn)，請(qǐng)大家仔細(xì)閱讀，希望你喜歡。
It”用法及其句型和固定搭配講解
“It”用法及其句型和固定搭配，是高中英語(yǔ)語(yǔ)法的重點(diǎn)、難點(diǎn)，因此應(yīng)給予充分的重視，今天我們就為大家歸納一下it的用法歸納一下
一it用作實(shí)詞
表達(dá)以下概念：指代前文提到的事物，前文中的this，that;替代前文中的內(nèi)容;指代一位性別不明的小孩或未知的人;指代未指明但談話雙方都知道的那件事;指代時(shí)間、天氣、氣候、距離等自然現(xiàn)象。
二it作形式主語(yǔ)
it替代作主語(yǔ)的從句、動(dòng)詞不定式、動(dòng)名詞，而把真正作主語(yǔ)的從句、動(dòng)詞不定式、動(dòng)名詞置于句尾。
1. it作形式主語(yǔ)代替從句的句型：
(1) It+be+名詞詞組+that從句。
例：It’s a wonder that you could finish the hard task in such a short time.
(2) It+be+adj. +that從句
It is/was surprising(important, desirable, advisable…) that…。在這個(gè)句型中，從句的謂語(yǔ)動(dòng)詞常用虛擬語(yǔ)氣，即“should+動(dòng)詞原形”或“should have+過(guò)去分詞”。
例：It’s important that you should apologize to her for your rudeness.
It’s strange that he should have gone away without telling us.
(3) It+v.+sb.+that從句
It+surprise/delight/interest/disappoint/worry/disturb/annoy/amaze /bother/frighten/please/anger sb.that…
例：It worried me that she drove so fast.
(4) It is/was desired(suggested, settled, proposed, requested, decided…) that…。在這個(gè)句型中，從句的謂語(yǔ)動(dòng)詞常用虛擬語(yǔ)氣，即“(should)+動(dòng)詞原形”。
例： It was requested that the play should be put on again.
(5) It+be/seem+adj.(good, true, wonderful, wrong, clear, possible, certain…)+that從句
例：It is likely that they will beat us tonight.
2. it作形式主語(yǔ)代替不定式的句型：
(1) It+be+adj. (for sb.) to do sth.
此處adj. 通常為描述事件的形容詞：easy, difficult, hard, necessary, unnecessary, possible, impossible, likely, unlikely, right, wrong, important, unimportant, legal, illegal, well-mannered, ill-mannered, polite, impolite, clear, obvious, certain, suitable, proper, fit, useful, useless, dangerous…
例：It is illegal (for a teenager) to drive a car without a license.
(2) It+be+adj.+of sb. to do sth.
此處adj. 通常為描述人的形容詞：kind, unkind, nice, rude, cruel, considerate, thoughtful, thoughtless, careful, careless, silly, foolish, stupid, clever, wise, crazy…
例：It’s kind of you to help me with the problem.
3. it作形式主語(yǔ)代替動(dòng)名詞的句型：
It’s no good/use doing…
It’s (well) worth doing…
It’s (well) worthwhile doing…
例：It’s no use crying over spilt milk.
三it作形式主語(yǔ)的句型
1. It takes sb. some time to do sth.某人用多長(zhǎng)時(shí)間做某事
It took the men a week to mend our roof.
2. It’s (about/high) time that…是該做某事的時(shí)候了
It’s(about/high) time that we should take action.
3. It’s the x-th time(that)…第幾次做某事了
It’s the third time that he has failed the driving test.
四it作形式賓語(yǔ)的常見(jiàn)句型
1. verb+ it+ adj./noun (for/of) to do/clause(verb=think, believe, suppose, consider, feel, make, keep…)
例：I think it hard for you to do the task on your own.
I think it hard that you’ll do the task on your own.
2. verb+it+adj./noun (one’s) doing
(verb=think, believe, suppose, consider, feel, make, keep…)
(adj.=useless/worth/worthwhile)
(noun=no use/no good/worth one’s while/a waste of time/money/energy/words)
例：I’ll make it worth your while telling me about his secret.
3. verb+it+ important/unimportant/necessary/unnecessary/natural/essential that … (should)…
(verb=think, believe, suppose, consider, feel, make, keep…)
例：I think it important that you (should) attend the conference.
4. verb + it+ as+ noun/adj.+ clause (verb=accept, regard, take, see, view)
例：The lecturer takes it as encouraging when so many students attend his lecture.
五強(qiáng)調(diào)句型
強(qiáng)調(diào)句型用來(lái)強(qiáng)調(diào)謂語(yǔ)動(dòng)詞以外的任何句子成分。其基本結(jié)構(gòu)是：It is/was+被強(qiáng)調(diào)部分+that(強(qiáng)調(diào)部分是人時(shí)也可以who)+其他成分。
在使用強(qiáng)調(diào)句型時(shí)需注意以下幾點(diǎn)：
1. 強(qiáng)調(diào)句型的特殊疑問(wèn)句：被強(qiáng)調(diào)部分(通常是疑問(wèn)代詞或疑問(wèn)副詞)+ is/was+it+that/who+其他部分?
例：When was it that he changed his mind to take part in the activity?
2. 在強(qiáng)調(diào)原因狀語(yǔ)從句時(shí)，只能強(qiáng)調(diào)由because引導(dǎo)的從句。
例：It was because he was ill that he didn’'t come to school yesterday.
3. 在強(qiáng)調(diào)not…until結(jié)構(gòu)時(shí)必須把not與until一起放到被強(qiáng)調(diào)的位置上。其結(jié)構(gòu)是：It is/was not until+被強(qiáng)調(diào)部分+that+其他部分。
例：It was not until she took off her dark glasses that I realized she was my sister.
4. 注意強(qiáng)調(diào)句型與定語(yǔ)從句的區(qū)別
例：It was at 7 o’clock that he came here yesterday. ( 強(qiáng)調(diào)句型)
It was 7 o’clock when he came here yesterday. (定語(yǔ)從句)
六It 常用的固定搭配
1. make it
(1) 在口語(yǔ)當(dāng)中相當(dāng)于succeed，表示“成功，做到，趕上，及時(shí)到達(dá)”。
例： No matter how hard it is, I will make it one day.
(2) 在口語(yǔ)中相當(dāng)于fix the date for，表示“約定好時(shí)間”。
例：— Shall we meet next week?
— OK. We just make it next Saturday.
2. as it is
(1) 相當(dāng)于in fact，in reality表示“事實(shí)上，實(shí)際上”。
例：We had planned to finish the task today, but as it is we probably won’t finish it until next week.
(2) 相當(dāng)于方式狀語(yǔ)從句，表示“照原樣”。
例：Leave the table as it is.
3. That’s it.
(1) 相當(dāng)于That’s all. That’s so much.表示“至此為止，沒(méi)有別的了”。
例：You can have one more sweet, and that’s it.
(2) 相當(dāng)于That’s right.表示“對(duì)啦”。
例：— I guess the key to the problem is the choice “A”.
— That’s it.
4. have it
(1) 相當(dāng)于say，insist表示，“說(shuō)，主張，表明”。
例：Rumour has it that they are getting divorced.
(2) 相當(dāng)于get to know something，表示“了解，知道，獲悉”。
例：I had it from John that Jane was going abroad.
5. Keep at it!
相當(dāng)于go on，表示“繼續(xù)做，不放棄”。
例：My teacher asked me to keep at it.
6. as it turned out表示“最后被證明是”
例：As it turned out, his statement was false.
7. Take it easy.
相當(dāng)于Don’t worry.用來(lái)勸告別人，表示“不要慌，別擔(dān)心”。
例：Take it easy! He will do it well.
8. believe it or not表示“信不信由你”。
例：Believe it or not, Tom is getting married to Mary next Sunday.
9. Take it or leave it.要么接受要么放棄。
例：That is my last offer. You can take it or leave it.
10. It all depends.
在口語(yǔ)中，相當(dāng)于It hasn’t been decided yet.表示“那得看情況，還沒(méi)有定下來(lái)”。
例：— Are you going to the countryside for holiday?
— It all depends.
11. It’s up to sb.
在口語(yǔ)中，相當(dāng)于It’s decided by sb.表示“由……決定，由……負(fù)責(zé)，取決于……”。
例：— Shall we go out for dinner?
— It’s up to you.
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(責(zé)任編輯：彭海芝)
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分享“高二英語(yǔ)語(yǔ)法知識(shí)點(diǎn)歸納--it”到：
- 高二學(xué)習(xí)方法之英語(yǔ)教導(dǎo)。
- 高二學(xué)生英語(yǔ) 學(xué)習(xí)方法之指點(diǎn)。
- 英語(yǔ)高二語(yǔ)法講解：關(guān)于定語(yǔ)從句的三個(gè)
- 高二英語(yǔ)第一學(xué)期短文改錯(cuò)練習(xí)題
- 2017年高二英語(yǔ)語(yǔ)法知識(shí)點(diǎn)：副詞及其基
- 英語(yǔ)語(yǔ)法高二知識(shí)點(diǎn)：過(guò)去分詞做定語(yǔ)表
- 高二英語(yǔ)重點(diǎn)語(yǔ)法知識(shí)點(diǎn)：獨(dú)立主格結(jié)構(gòu)
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- 高二英語(yǔ)知識(shí)點(diǎn)比較：be known
- 高二英語(yǔ)知識(shí)點(diǎn)：詞匯比較 select, cho
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