999精品在线视频,手机成人午夜在线视频,久久不卡国产精品无码,中日无码在线观看,成人av手机在线观看,日韩精品亚洲一区中文字幕,亚洲av无码人妻,四虎国产在线观看 ?

it句型大掃描

2017-02-17 17:28:24劉芷岑
考試周刊 2017年8期

劉芷岑

研究高考試卷可以發現含it的句型年年考到,可見it句型的重要性和使用的普遍性。根據其用法特點可歸納為20個句型。

1. It is + 被強調部分 + that ...

該句型是強調句型。將被強調的部分放在前面,其他部分置于that之后。被強調部分可以是主語、賓語、表語或狀語。強調的主語如果是人,that可以由who換用。如果把這種句型結構劃掉后,應該是一個完整無缺的句子。這是判斷強調句型與其他從句的方法。

It was about 600 years ago that the first clock with a face and an hour hand was made.

It was they that (who) cleaned the classroom yesterday.

It was in the street that I met her father.

2. It is not until + 被強調部分 + that ...

該句型也是強調句型。主要用于強調時間狀語,譯成漢語“直到……才……”,可以說是 not ... until ... 的強調形式。

It was not until she took off her dark glasses that I realized she was a famous film star.

= Not until she took off her dark glasses did I realize she was a famous film star.

= I didnt realize she was a famous film star until she took off her dark glasses.

3. It is clear (obvious, true, possible, certain...) that ....

該句型中it 是形式主語,真正的主語是that 引導的主語從句,常譯為“清楚(顯然,真的,肯定……)”,是主語從句最常見的一種結構。

It is very clear that hes round and tall like a tree.

= That hes round and tall like a tree is very clear.

4. It is important (necessary, right, strange, natural...) that ...

該句型和上一個同屬一個句型。由于主句中的形容詞不同,that 后的從句中要用虛擬語氣(should + 動詞原形),should 可以省去。建議記住該句型中的形容詞。

It is important that we (should) learn English well.

It is necessary that he (should) remember these words.

5. It is said (reported, learned...) that ...

該句型中的it 仍是形式主語,真正主語是that 引導的主語從句,該結構常譯為“據說(據報道,據悉……)”。

It is said that he has come to Beijing.

It is reported that another earth satellite has been put into orbit.

6. It is suggested (ordered ...) that ...

該句型和上一個同屬一個句型。主句中的過去分詞表示請求、建議、命令等詞時,that后的從句要用虛擬語氣(should + 動詞原形),should 可以省,常譯為“據建議;有命令……”。

It is suggested that the meeting (should) be put off.

It was ordered that we (should) arrive there in two hours.

7. It is a pity (a shame ...) that ...

該句型中,that后的從句一般用虛擬語氣(should + 動詞原形),should可省去,表示出乎意料,常譯為“竟然”。沒有這種意義時,則不用虛擬語氣。

It is a pity that such a thing (should) happen in your class.

這種事竟然發生在你們班上,真是遺憾!

It is a pity that he is ill. 他生病了,真遺憾!

8. It is time (about time ,high time) that ...

該句型中that 后的從句應該用虛擬語氣,值得注意的是:① 常用過去時態表示虛擬;②有時也用should + 動詞原形,should 不能省,常譯為“是(正是)……的時侯……”。

It is time that children should go to bed.

= It is time that children went to bed.

9. It is the first (second ...) time that ...

該句型要和上一個句型區別開來。該句型中的 that 從句不用虛擬語氣,而用完成時態。至于用什么完成時態,由主句的謂語動詞的時態決定。如果是一般現在時,后面從句用現在完成時態;如果是一般過去時,后面從句則用過去完成時態。該結構中 that 可以省去;it有時用 this 替換,常譯為“是第一(二)……次……”。

It is the first time I have been here.

= This is the first time I have been here.

10. It is ... since ...

該句型主要用作處理瞬間動詞的完成時,又要和表示一段時間的時間狀語連用的問題。主句中是時間作表語,其時態是現在時或完成時,since 引導的從句通常是一般過去時態,而且是瞬間動詞。如果主句是一般過去時,從句則用過去完成時。

It is (has been) 5 years since his father died.

11. It is ... when ...

該句型中的 when 引導的是一個時間狀語從句,主句中的 it 指時間,表語由具體的時間充當,常譯為“當……的時候,是……”。

It was 5 oclock when he came here.

12. It be ... before ...

該句型主句中的 it 指時間, 主句中的時態常是將來一般時或過去時兩種時態,主句中的表語多是long, not long, 3 days, 2 weeks等表示時間段的詞或短語,常譯為“……之后……”。

It was 3 days before he went to Beijing.

It will be not long before he finishes his job.

13. It happens (seems, looks, appears) that...

該句型中it是形式主語,that 引導的是主語從句,主句中的happen, seem等詞是不及物動詞.

It happened (so happened) that he met his teacher in the street. 碰巧……

It seems that he will be back in a few days. 看來……

14. It takes sb. ... to do sth.

該句型中的不定式是真正的主語,it是形式主語,句型中的直接賓語是時間,常譯為“做……要花費某人……”。

It took thousands of people many years to build the Great Wall.

15. It is no good (use) doing sth.

該句型中的真正主語是動名詞短語,主句中的表語可以是no good,(not any good),no use(not any use)。

It is no good learning English without speaking English.

16. It doesnt matter whether (if) ...

該句型中whether(if) 引導的從句是真正主語,該句型常譯為“不論(是否)……沒關系……”。

It doesnt matter if they are old.

17. It is kind (of sb.) to do sth.

該句型中的不定式短語是真正主語,如果不定式的邏輯主語由 of引起,主句中的形容詞必須是能表示邏輯主語特征的形容詞。常見的有: bad, brave, careless, clever, cruel, foolish, good (好心的), honest, horrible, kind, lazy, modest, naughty, nice(有教養的), polite, rude, silly, stupid, wise, wrong(錯誤的)等。 這個句型可以改寫為:sb. is kind to do sth.

It is kind of you to say so.

= You are kind to say so.

18. It is necessary (for sb.) to do sth.

該句型與上一個同屬一個句型。如果不定式的邏輯主語由for引起,主句中的形容詞通常是表示重要性、緊迫性、頻繁程度、難易、安全等情況的形容詞。常見的形容詞有:① important, necessary, natural,②easy, safe, common, normal, hard, difficult, dangerous, unusual, rare, impossible, pleasant等。

在①中的形容詞作表語可以用從句改寫, 如:

It is important for her to come to the party.

= It is important that she (should) come to the party

19. It looks (seems) as if ...

該句型中it無意義, as if 引導一個狀語從句,常譯為“看起來好像……”。如果與事實不相符合,則用虛擬語氣。

It looks as if he is ill.(真的病了)

It looks as if he were ill. (沒有生病)

It seemed as if he were dying.

20. We think it important to learn a foreign language.

該句型中的it 作形式賓語。為了記憶方便,我們可稱該句型為“6123結構”。

6指的是主句中常用的動詞:think, believe, make, find, consider, feel;

1指的是形式賓語it;

2指的是賓補的兩種形式:形容詞或名詞;

3指的是真正賓語的三種形式:不定式短語、動名詞短語或that引導的賓語從句。

We think it our duty to clean our classroom every day.

He felt it important learning English well.

They found it difficult that they would finish their work in two days.

主站蜘蛛池模板: 亚洲高清无码精品| 国产欧美日韩va| 黑人巨大精品欧美一区二区区| 67194在线午夜亚洲 | 中文无码精品A∨在线观看不卡| 在线国产毛片手机小视频| 亚洲成人一区二区| 国产成人一区| 重口调教一区二区视频| 任我操在线视频| 亚洲午夜18| 综合人妻久久一区二区精品| 一级毛片高清| 欧美中文字幕在线视频| 好久久免费视频高清| 国产成人AV综合久久| 国产激情无码一区二区APP| 亚洲人精品亚洲人成在线| 就去吻亚洲精品国产欧美| 国产一级无码不卡视频| 福利小视频在线播放| 成人欧美日韩| 亚洲国产高清精品线久久| 蜜桃视频一区二区三区| 亚洲成av人无码综合在线观看| 波多野结衣爽到高潮漏水大喷| 美女被躁出白浆视频播放| 国产精品所毛片视频| 美女内射视频WWW网站午夜| 97国产精品视频自在拍| 欧美精品成人一区二区视频一| AV天堂资源福利在线观看| 国产又粗又爽视频| 国产精品香蕉在线| 黄色网站不卡无码| 久久婷婷国产综合尤物精品| 老熟妇喷水一区二区三区| 国产成人精品一区二区免费看京| 无码专区国产精品一区| 国产精品30p| 欧美色综合久久| 国产精品精品视频| 亚洲欧洲日韩久久狠狠爱| 97影院午夜在线观看视频| 18禁黄无遮挡网站| 四虎影视国产精品| 亚洲免费三区| 国产黄视频网站| 又大又硬又爽免费视频| 好紧好深好大乳无码中文字幕| 亚洲欧美成人影院| 国产成人1024精品下载| 色婷婷在线播放| 五月激激激综合网色播免费| 欧美一区二区三区香蕉视| 高潮毛片免费观看| 久久久久国产精品免费免费不卡| 91色在线观看| 国产精品综合久久久| 亚洲欧美综合精品久久成人网| 国产精品林美惠子在线播放| 亚洲视频免| 真人免费一级毛片一区二区 | 最新日韩AV网址在线观看| 99精品久久精品| 久久特级毛片| 久久免费看片| 国产欧美一区二区三区视频在线观看| 中国丰满人妻无码束缚啪啪| 99无码熟妇丰满人妻啪啪 | 粉嫩国产白浆在线观看| 欧美色图第一页| 波多野结衣AV无码久久一区| 国产成人久久777777| 在线色国产| 热re99久久精品国99热| 久久视精品| 国产成人在线小视频| 永久免费AⅤ无码网站在线观看| 亚洲人成网线在线播放va| 十八禁美女裸体网站| 欧美日韩免费观看|