It 句型归纳

It 句型归纳
1．It is ＋adj．(＋for sb．／sth．) ＋ to do sth．
用于此句型的形容词有：easy，hard，difficult，possible，important，impossible，necessary，good，bad，exciting, interesting，surprising等。

如：
It is necessary to change your job．
It was very hard for them to walk such a long way in the snow．
2．It is ＋n．(＋for sb．／sth．) ＋ to do sth．
用于此句型的名词有： pity, shame, pleasure, one's duty, one's job, fun, joy, good manners, bad manners等。

如：
It is a pity for you to have missed such a wonderful play．
错过如此精彩的表演太可惜了
It is bad manners for the young to take up the seats for the old．
占据老年人的座位这件事是不好的行为
3．It is ＋adj．＋of sb．＋to do sth．
此句型中的形容词主要描述某人的品德、特征。

能用于该句型的形容词有：
kind, nice, wise, silly, polite, impolite, friendly, foolish, clever等。

如：
How silly it was of you to give up such a good chance！
放弃如此好的机会，真是太傻了
It is friendly of the family to try to make me feel at home in their house．这一家人太友好了，让我感觉到了自己家似的
4． It is ＋adj．（＋n．）＋doing sth．
此句型中的形容词和名词常见的有：no／little use, no／much good, useless 等。

如：
It's no use crying over spilt milk（无可挽回，无法弥补的损失）．
哭也无可挽回这件事情了
5．It takes sb．＋一段时间＋to do sth．
表示"做某事花费某人多长时间"。

如：
It took us half an hour to ride to the town by the sea．
6．It is ＋及物动词的过去分词＋that从句
此句型中常见的及物动词的过去分词有：said, told, known, reported, recorded, thought, believed, considered等。

如：
It is reported that the Russian President will visit China next week．7．It ＋不及物动词＋that从句
此句型中不及物动词常见的有：seem， happen， appear， matter等。

如：
It seems that there will be a heavy snow tomorrow．
It happened that I met my good friends in the museum yesterday．
8．强调句型：It is＋被强调部分＋that／who从句
在使用强调句型时要注意，指人时可以用who或that，其它情况一律用that。

如：It was under the bed that my brother hid the ball this morning．
It is Mr Bell who／that often comes and looks after the old man．
9．It is／has been＋一段时间＋since从句。

如：
It is ／has been three years since we saw each other last．
10．It is (high) time that sb． did sth．
该句型表示"某人现在该做某事了"，从句常用过去时（虚拟语气）说明现在应该做的事情。

如：
It's six o'clock．It is high time that we went home now．
练习 It的用法
1. My bike is missing. I can't find ____ anywhere.
A. one
B. ones
C. it
D. that
2. ---- Who's that? ---- ____ Professor Li.
A. That's
B. It's
C. He's
D. This's
3. ____ was Jane that I saw in the library this morning.
A. It
B. He
C. She
D. That
4. ---- Have you ever seen a whale alive?
---- Yes, I've seen ____.
A. that
B. it
C. such
D. one
5. The color of my coat is different from ____ of yours.
A. this
B. that
C. it
D. one
6. ____ will do you good to do some exercise every morning.
A. It
B. There
C. Those
D. You
7. We think ____ our duty to pay taxes to our government.
A. that
B. this
C. its
D. it
8. The climate of Shanghai is better than ____ of Nanjing.
A. that
B. it
C. which
D. what
9. ____ four years since I joined the Army.
A. There was
B. There is
C. It was
D. It is
10. How long ____ to finish the work?
A. you'll take
B. you'll take it
C. will it take you
D. will take you
11. It was through Xiao Li ____ I got to know Xiao Wang.
A. who
B. whom
C. how
D. that
12. It was in the rice fields ____ we had our league meeting.
A. where
B. that
C. in which
D. on which
13. It was on October 1st ____ new China was founded.
A. which
B. when
C. as
D. that
14. Was it because he was ill ____ he asked for leave?
A. and
B. that
C. that's
D. so
15. Mary speaks in a low voice; ____ is difficult to know what she is saying.
A. it
B. that
C. so
D. she
16. It was ____ I met Mr Green in Shanghai.
A. many years that
B. many years before
C. many years ago that
D. many years when
17. ____ is not everybody ____ can draw so well.
A. It, all
B. It, that
C. There, who
D. There, that
18. So ____ that no fish can live in it.
A. shallow is the lake
B. the lake is shallow
C. shallow the lake is
D. is the lake shallow
Keys:
1~5 CBADB 6~10 ADADC 11~15 DBDBA 16~18 CBA
“感官”动词用法：）~~
感官动词(及物)有：
see/notice/look_at/watch/notice/observe/listen_to/hear/feel(Vt)/taste(V t)/smell(Vt)
B)连缀动词(含感官不及物)
be/get/become/feel/look/sound/smell/taste/keep/stay/seem/
appear/grow/turn/prove/remain/go/run
一、see, hear, feel, watch, look,这五个动词均可作连系动词，后面接形容词作表语，说明主语所处的状态。

其意思分别为"看/听/闻/尝/摸起来……"。

除look 之外，其它几个动词的主语往往是物，而不是人。

例如：
These flowers smell very sweet.这些花闻起来很香。

二、这些动词后面也可接介词like短语，like后面常用名词。

例如：
Her idea sounds like fun.她的主意听起来很有趣。

三、这五个感官动词也可作实义动词,除look(当"看起来……"讲时)只能作不及物动词外,其余四个既可作及物动词也可作不及物动词,其主语通常是人。

例如: She smelt the meat.她闻了闻那块肉。

I felt in my pocket for cigarettes.我用手在口袋里摸香烟。

四、taste, smell作不及物动词时,可用于"taste / smell + of +名词"结构,意为"有……味道/气味"。

例如:
The air in the room smells of earth.房间里的空气有股泥土味。

详细的可以看这里：）~~
/question/4433538.html
另外，系动词又称连系动词，不单独作谓语，必须与表语连用构成系表结构。

系表结构可表述主语的状况，而我们对主语情况的了解和描述角度各不相同，因此对主语的表述就因说话人的角度不同，而使用不同的系动词。

现就初中课本中的系动词小结如下：
1、以肯定的语气叙述主语状态时，要用系动词be，后接n（名词）,adj（形容词）,p.p （分词）,inf（不定式）， adv（副词） ,prep. Phr.（介词短语）作表语。

如：（1）He is honest.
2、表示说话人所感知的主语的特征或状态时，系动词用look, feel, sound, taste, smell等，后常接n（名词）,inf（不定式）,p.p（分词）,adj（形容词）等作表语。

如：（1）Her voice sounds sweet.
3、表示主语状态变化时，系动词用become ,get, grow, come , turn (若跟名词不加冠词) ，fall (asleep, ill, silent)等，后面大多数接形容词作表语。

但become, turn亦可接名词作表语。

如：（1） He turns doctor.
4、表示主语的持续时，系动词用remain, stay , keep, continue等。

如：(1) The door keeps open.
详细的可以看这里的：）~~
1. Linking verb + adjective 系动词+形容词,构成系表结构.
系动词：be (是) feel look sound taste turn get become smell seem 等等．
For example :The food tastes delious.
2. hope 与wish 的比较．都与that引导的从句连用．Hope常用于将来时表可能实现的愿望． Wish常用于过去式表示不可能实现的愿望．
For example : I hope that you will be happy.
I wish that you could be happy.
3. 动词-ing 和-ed形式作主语补语的区别．动词-ing表示主语的特征，常用于事物．动词-ed表示主语的状态，常用于人．这类词有：interest move active disappoint excite surprise frighten bore等等．
For example：The game is interesting.
I am interested in the game.
4．表示能力的词．
Could 表示过去的能力．
Can 表示现在的能力
be able to 表示过去，现在，将来任何时候的能力．将来时态（shall \will be able to----）
5. 原因状语从句．引导词：because since so 等，但是因为，所以不能同时出现．
For example：He is ill, so he isn’t able to come.
She is lonely because she has no friends to talk with.
Since（尽管） she is very strict with herself ,she is unhappy.
尽管他对自己严格要求，但是他并不快乐
6. always 常用于一般现在时．表示频繁发生的动作．但与现在进行时态连用表是厌恶，责备，赞扬的语气．
For example: She is always talking about money.
7. can’t 表示一种否定的推测．You can’t have SARS.
must 表示一种肯定的推测．It must be sunny day tomorrow
8. 使役动词（让―――＼使――）make let have 的用法．
make +宾语＋(省约to 的不定式)动词．
make+宾语＋名词．We make him team leader.
make +宾语＋形容词．It make me happy.
Let+宾语＋(省约to 的不定式)动词.
Have+宾语+(省约to 的不定式)动词
老师叫John到办公室拿他的书。

The teather made(had ) John get his book in the office.
爸爸让我明天下午看电视。

Father let me watch TV tomorrow afternoon.
9. 英语语法as...as、so…as、so…that和too…to的用法区别
①so…as只用于否定句，as…as不但可用于肯定句，还可用于否定句
②as…as中的第一个as是副词,后接形容词或副词的原形;第二个as是连词,引导比较状语从句.
例如:Jack is as tall as you. 杰克和你一样高.
Jim is not so/as brave as you. 吉姆不如你聪明.
③so…that 如此…以至于(只能引导结果状语从句,的后面多接形容词、副词或分词,后接句子. 例如:
The house was so crowded that I could hardly turned around. 屋里很挤,我几乎都无法转身了.
④too…to 太…以至于不能…(too为副词,后接形容词或者副词,to为不定式的标志,这个不定式短语本身带有否定含义.) 例如:
The box is too heavy for her to carry it. 对于她来说,这个箱子太重了,以至于她搬不动.
10. few ; a few ; little; a little的用法和区别.
⑴ (a) few与 (a) little的区别
① 从所修饰的名词来看：(a) few后接可数名词，且要用复数形式；(a) little 后接不可数名词。

如：
We had little time to do it. 我们没什么时间做此事。

There’s only a little soup left. 只剩下一点儿汤了。

He has few friends. 他朋友很少。

I’ll only be away a few minutes. 我只离开几分钟。

②从所表示的意思来看：上面提到，两者均可表示数量，其主要区别是，(a) few 后接可数名词，(a) little后接不可数名词。

但是，(a) little还可表示大小。

如：
Please accept this little gift．请接受这件小小的礼物。

There are several little towns along the river. 沿河有几个小镇。

注意体会下面两句，前面的little表示形状或个子“小”，后面的little表示数量“少”：
The little boy is very busy. He has little time to play. 这个小男孩很忙，他很少有时间玩。

It’s a little animal. It eats only a little food. 那是一个小动物，它只吃一点点食物。

③ 从各自的词性来看：在词性方面，两者的共同点是，均可用作形容词或代词；其不同点是，(a) little 还可用作副词，用以修饰形容词、副词、动词以及介词短语。

如：
He is a little tired. 他有点累了。

They are a little bit better now. 现在他们稍好一点了。

You should walk a little faster. 你应该走快一点。

She was only a little over fifty years old．她才五十多一点。

⑵有 a 与没有 a 的区别
不带 a 的little和few 含有否定意义，表示数量很少或几乎没有，强调“少”；带有a 的little和few含有肯定意义，表示数量虽然少但毕竟还有，强调“有”。

比较：
Few people like such things. 没什么人喜欢那样的东西。

A few people like such things. 有少数人喜欢那样的东西。

He knows little English. 他几乎不懂英语。

He knows a little English. 他懂一点点英语。

注意，当few前不带 a，但带有the, some these, those等修饰语时，也表示肯定意义。

如：
Some few have already left. 有几个已经离开了。

The last few winters have been very cold．过去几个冬天都很冷。

The first few chapters are about his early days．前几章谈他的少年时期。

⑶思维拓展
注意两者比较级和最高级的用法及区别：little的比较级和最高级分别为less和least，few的比较级和最高级分别为fewer和fewest。

如：
Boys think less about dress than girls do. 男孩子不像女孩子那样爱打扮。

He has the least money of all of us. 他是我们大家中钱最少的。

Fewer radios were sold this year than last. 今年卖掉的收音机比去年少。

He tried to finish the work with least money and fewest people. 他设法要用最少的钱和最少的人去完成这项工作。

11.系动词的用法
连系动词本身有一定的词义,但不能独立作谓语,必须与表语一起构成谓语。

表语通常由名词、形容词,或相当于名词或形容词的词或短语等充当,说明主语是什么或怎么样。

二、分类
1. "存在"类:表示存在或具有某种特征或状态.这类连系动词强调"存在"。

常见的有:be(是),look(看起来),feel(摸上去),seem(似乎是),appear(似乎、显得),prove(证明是),smell(闻起来),taste(尝起来),sound(听起来)等。

例如:
The story sounds true.
Those oranges taste good.
2. "持续"类:表示某种情况或状态的持续。

这类连系动词强调"持续"。

常见的有: remain(依然),keep(保持),stay(保持),continue(继续、仍旧),stand(处于某状况或情形)等。

例如:
Why don't you put the meat in the fridge? It will stay fresh for several days.
It's already ten in the morning. The store remains closed. What's the matter?
3. "变化"类:表示由一种情况或状态变化成另一种情况或状态。

这类连系动词强调"变化"后的情况或状态.常见的有:become(变成), turn(变成), grow(变得), go(变得)等。

例如:
Put the fish in the fridge, or it will go bad in hot weather.
三、注意事项
1. 有些连系动词通常不用于被动语态和进行时态中。

如:feel, taste等词。

例如:
-Do you like the material?
-Yes, it feels very soft.
2. 一般情况下,连系动词主要跟形容词或分词作表语。

例如:
Be careful when you cross this very busy street. If not, you may get run over by a car.
3. 能跟名词作表语的连系动词常见的有:be, become, appear, seem, prove, remain和turn等.注意:turn后跟(表示主语身份的)名词作表语时,不加冠词。

例如:
Twenty years later, he turned teacher.
The population growth in China remains a problem.
4. 连系动词也可跟不定式(to do / to be),常见的有:appear, seem, remain, prove, look等。

例如:
Having a trip abroad is certainly good for the old couple, but it remains to be seen whether they will enjoy it.
On the long journey, Peter proved to be a most interesting guide. We all had a wonderful time.
系动词
定义
系动词亦称联系动词（Link Verb），作为系动词，它本身有词义，但不能单独用作谓语，后边必须跟表语（亦称补语），构成系表结构说明主语的状况、性质、特征等情况。

说明：
有些系动词又是实义动词，该动词表达实义时，有词义，可单独作谓语，例如：He fell ill yesterday.
他昨天病了。

（fell是系动词，后跟补足语，说明主语情况。

）
He fell off the ladder.
他从梯子上摔下来。

fell是实义动词，单独作谓语。

分类
1）状态系动词
用来表示主语状态，只有be一词，例如：
He is a teacher. 他是一名教师。

（is与补足语一起说明主语的身份。

）
2）持续系动词
用来表示主语继续或保持一种状况或态度，主要有keep, rest, remain, stay, lie, stand, 例如：
He always kept silent at meeting. 他开会时总保持沉默。

This matter rests a mystery. 此事仍是一个谜。

3）表像系动词
用来表示"看起来像"这一概念，主要有seem, appear, look, 例如：
He looks tired. 他看起来很累。

He seems (to be) very sad. 他看起来很伤心。

4）感官系动词
感官系动词主要有feel, smell, sound, taste, 例如：
This kind of cloth feels very soft.
这种布手感很软。

This flower smells very sweet.
这朵花闻起来很香。

5）变化系动词
这些系动词表示主语变成什么样，变化系动词主要有become, grow, turn, fall, get, go, come, run.
例如：
He became mad after that. 自那之后，他疯了。

She grew rich within a short time. 她没多长时间就富了。

6）终止系动词
表示主语已终止动作，主要有prove, trun out, 表达"证实"，"变成"之意，例如：The rumor proved false. 这谣言证实有假。

The search proved difficult. 搜查证实很难。

His plan turned out a success. 他的计划终于成功了。

（turn out表终止性结果）
注意事项
系动词本身有一定的词义，不能单独作谓语，后面必须与表语连用。

复习系动词时，必须注意以下几个问题：
1.be是最重要的系动词，主语不同，be的形式也不同，且有时态的变化。

通常表示主语的特征、状态和身份等，后面接形容词、副词、名词、介词短语、不定式、v-ing、过去分词及表语从句作表语。

特别要注意“由be+过去分词”所构成的系表结构与“由be+过去分词”所构成的被动语态的区别。

前者侧重于表示主语的特征或所处的状态，通常没有由by引导的介词短语。

如：The door was closed.
后者侧重于强调主语是谓语动词所示动作的承受者，表示动作；句中可以用由by 引导的介词短语。

如：The door was closed by me.
还要注意“由be+ V-ing所构成的系表结构与“由be+ V-ing”所构成的进行时态的区别。

前者侧重于说明主语具有的特征或存在的状态，也可说明主语是什么。

如：My job is teaching English.
后者侧重于强调主语正在做某事。

如：Mr Wang is reading an evening paper now.
2. 要注意由行为动词转化成的系动词。

表示人体感官的系动词有sound，taste，look，feel，smell等，后面接形容词；表示主语从一种状态转变到另一种状态的系动词有become，get，go，turn，run，grow，come，fall，prove等，后面接形容词、名词或 to be+形容词，become后面接单数名词时，名词前要用不定冠词，turn后面接单数名词时，名词前不用不定冠词；
表示主语继续或保持某种身份、特征或状态的系动词有continue，keep，remain，stay，stand lie，rest，stay等，后面接表示状态的形容词；
表示判断的系动词有seem和appear，后面接形容词、to be+名词或形容词、
that-clause、不定式等。

3. 要注意系动词的固定搭配。

常见的有come true, fall asleep, fall ill, go bad, come right, run wild, wear thin, turn nasty等。

4. 要特别注意某些动词既可以做系动词，又可以做实意动词的用法。

系动词部分主要注意：其后要求接形容词，而不是副词做表语。

遇到这种情况，只能先根据其意思判断清楚到底是前者还是后者，然后再对后面的词性和词义做出正确判断和选择。

以taste一词为例：
The newly-invented soft drinking tastes quite unique.（这种新研制的
软饮料尝起来挺独特的。

注意：在这句话里，taste做系动词，不能使用进行时，后面接形容词。

）
The chef is tasting the fish carefully.（厨师长正在品尝这道鱼。

注意：在这句话中，taste做实意动词，可以使用进行时，并且后面接副词做状语。

）
专项训练
1. —What is Mr Wang like?
—____.
A. He is a teacher
B. He is old and kind
C. He looks like a balloon
D. He likes English
2. What Mr White said sounds____.
A. friendly
B. wonderfully
C. pleasantly
D. nicely
3. The poor boy ____ blind at the age of three.
A. turned
B. goes
C. became
D. went
4. When he was a child he____ .
A. grew patience
B. was alive
C. ran wild
D. came true
5. His voice____ as if he has a cold.
A. sounds
B. listens
C. hears
D. seems
6. This shirt___ as if it is made of cotton.
A. is
B. looks
C. feels
D. seems
7. He looks ___ he hadn’t had a good meal for a month
A. that
B. as if
C. when
D. so far
8. It ____that he was late for the train.
A. looks
B. turns
C. gets
D. seems
9. These apples taste_____.
A. to he good
B. to be well
C. well
D. good
10. —Do you like the shirt?
—Yes, it ____ very soft.
A. feels
B. felt
C. is feeling
D. is felt
11. The moment Mr Zhang went to bed, he____ asleep
A. kept
B. got
C. fell
D. fall
12. When I went home yesterday, it was ____ dark.
A. going
B. getting
C. running
D. coming
13. Their plan ____ to be a perfect one.
A. proved
B. was proved
C. is proving
D. proving
14. The flowers in the garden ____ sweet.
A. sound
B. taste
C. become
D. smell
15. She____ like her mother in character.
A. looks
B. seems
C. is
D. feels
16. It____ another fine day tomorrow.
A. seems
B. promises
C. appears
D. looks
17. He ____ much younger than he really is.
A. appears
B. grows
C. becomes
D. turns
18. You____ very pale. Do you feel sick?
A. looked
B. are looking
C. looking
D. are looked
19. His wish to become a driver has ____true.
A. turned
B. realized
C. come
D. grown
20. Her father ____a writer.
A. turned
B. grew
C. has turned
D. has become
答案与分析
1. B What’s...like?是询问人或事物的性质特征情况的交际用语，答语中常含有说明性质特征情况的形容词。

2. A sound表示“听起来”，后面接形容词作表语，答案B、C、D均为副词。

3. D若人或事物的情况变化是永久性的或难以扭转的坏变化时，用系动词go 表示。

4. C run wild是固定搭配，表示“放荡不羁”。

5. A sound表示“听起来”，后面接as if 引导的表语从句，表示对主语所表示的特征、状态或性质作出的反应及判断。

6. C feel作系动词用时，表示“(东西)摸上去令人有某种感觉”。

7. B as if引导表语从句时，从句谓语动作发生在主句谓语动作之前，从句谓语用过去完成式。

8. D “ It seems that…” 表示“看起来……”。

是固定句型，强调根据一定的事实所得出的一种接近于实际情况的判断。

9. D taste表示“尝起来”时，是系动词，后面接形容词作表语。

10. A feel表示“(某物)摸上去(令人)有某种感觉”时，是系动词，用于一般现在时。

11. C fall asleep表示“入睡”，是固定搭配，根据题意，应用过去时。

12. B get表示“逐渐……起来”、“开始……起来”时，是系动词，多用于进行时。

13. A prove表示“证明是”时，是系动词。

14. D smell表示“有……的气味”、“散发气味”时，是系动词，后面接形
容词。

15. C belike表示“看起来像”时，既可指外貌，又可指品质和特征，侧重于特征。

16. B promise表示“有……的可能”、“给人以……的指望”时，是系动词，后面接名词作表语。

17. A appear表示“看起来”时，是系动词。

侧重于在外表给人某种印象，常为“假象”。

18. B look表示“显得”、“看起来”时，是系动词，后面接形容词作表语，用进行时态，常带有感情色彩。

19. C come true是固定搭配，表示“实现”，其中come是系动词，表示“成为”、“变得”。

20. D become表示“变成”，作系动词用，在后面作表语的名词前要加a或an。

turn后跟可数名词单数要去掉a(n)。

as...as的用法
as...as意为"和……一样"，表示同级的比较。

使用时要注意第一个as为副词，第二个as为连词。

其基本结构为：as+ adj./ adv. +as。

例如：
(1)This film is as interesting as that one.这部电影和那部电影一样有趣。

(2)Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。

其否定式为not as/so +adj./ adv. +as。

例如：
This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。

若有修饰成分，如twice, three times, half, a quarter等，则须置于第一个as 之前。

例如：
Your bag is twice as expensive as mine.你的袋子比我的贵一倍。

几个关于as...as的常见句型：
(1)as...as possible
Please answer my question as soon as possible.请尽快回答我的问题。

(2)as...as usual/before
She looks as pretty as before.她看起来和以前一样漂亮。

(3)as long as... (引导条件状语从句)
It took us as long as three years to carry out the plan.我们花了长达三年的时间才完成这项计划。

(4)as far as
He walked as far as the railway station yesterday evening.昨天傍晚，他一直散步到火车站。

(5)as well as
She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。

一些带有as...as结构的常见短语归纳：
as busy as a bee像蜜蜂一样忙碌
as easy as ABC像ABC一样容易
as deep as a well像井一样深
as light as a feather像羽毛一样轻
as soft as butter像黄油一样软
as rich as a Jew像犹太人一样富裕
一、“as(否定句中可用so)＋adj．／adv．＋as…”，其基本意思为“……和……一样”。

但在实际应用中，此结构在不同的语境中含义差异较大。

1、表示不同人或物同一性质的比较，意为“……和……一样……"。

The tree is as tall as the building(is)．
这棵树和那栋楼一样高。

Michael is as bright as George(is)．
迈克尔和乔治一样聪明。

2、表示同一个人或物不同性质的比较，意为“既……又……”
Alice works as happily as(she)plays(happily)．
艾丽丝愉快地工作，尽情地玩。

Danny is not so wise as he is witty．
丹尼为人风趣，但欠明智。

3、用于表示两个人或物不同性质的比较，表示程度相同或相当，意为“……而……”。

He was as handsome as his wife was beautiful．
他长得非常英俊，他的妻子也长得非常漂亮。

He was as experienced as his brother was green．
他经验丰富，而他兄弟却涉世未深。

二、as…as结构的另一种形式是“as much／many＋名词＋as＋从句”。

Mary has written as many essays as her brother．
玛丽写的文章篇数和她弟弟一样多。

It is as much your fault as your wife’s．
这既是你的过错，也是你妻子的过错。

Henry is as much a hypocrite as·John．
亨利跟约翰一样是个伪君子。

三、若有修饰成分，如twice，three times，half，a quaer等，必须置于第一个as之前。

You are not half as clever as you think you are．你可不像自己想象的那么聪明。

She isn’t going out with a man who is twice as old as she．
她不打算和一个比她大一倍的人出去散步。

You’ve made just as many mistakes as I have．
我和你犯的错误一样多。

We’ve produced twice as much cotton this year as we did lastyear.
我们今年的棉花产量是去年的两倍。

四、as…as结构的另一变体形式是“as＋形容词原级＋名词词组＋as”
I don't want as expensive a car as this.＝I don't want a car as expensive
as this．
我不要这么贵的汽车。

Tony is as clever a boy as his brother．
托尼是一个和他兄弟一样聪明的男孩。

五、当as…as与表示重量、数量、时间、距离、价格等的计量名词连用时。

往往并不表示比较。

而是构成一个形容词组，意为“重达……，多达……，高达……”等。

The river is as deep aslO meters．
这条河深达10米。

Frosts often occur as late as May．
往往到5月份还有霜。

六、“as+原级+as any(或ever)”、“as+原级+as…can be”、“nothing(或no)＋so＋原级＋as…”等结构表达的是最高级意义。

即在某种程度上或某方面达到极限或最大限度。

He is as great a mathematician as any．
他是一位非常杰出的数学家。

He is as happy as happy can be．
他幸福无比。

No one is so deaf as those who won’t listen．
最聋者莫过于不听劝说的人。

七、as…as…不表示比较的几个常见句型。

1．as…as possible／sb can尽可能的……
Please answer my question as soon as possible．
请尽快回答我的问题。

The detective is searching the man as carefully as he can．
那个侦探正在尽可能仔细地搜查那个男子的身体。

2．as…as usual／before像以前一样……
She looks as pretty as before．
她看起来和以前一样漂亮
Though they failed，they still worked as hard as usual．尽管他们失败了，但他们仍像以前一样努力工作。

3．as long as只要，引导条件状语从句
Ｉ will stay with you as long as there is a room flree．
要是你有一间空余的房子，我就住在你这里。

You may borrow this book as long as you promise to give itback．只要你答应归还，你就可以把这书借走。

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