as…as句型的用法
在英语中,as…as句型是经常考的,这个句型的意思是与……一样。
as…as句型的用法:
1、A+系动词+ as +形容词1+ as+ B+系动词+动词+形容词2。
这里的形容词1和形容词2是两个不同的形容词,而系动词的形式是一样的,比如都是is或are等,A和B可以是不同的两个东西,也可以是同一东西的2个不同的部分:
如:
It is not half as wide as it is long.
某物宽度还不足其长度的一半。
2、A+系动词1+ as+形容词+ as + B+系动词2。
这里没有形容词2了,因为形容词1和形容词2是一样的,所以句中只有一个形容词即可。
但是系动词分为1和2,原因是这个搭配里两个系动词是不同的,A和B为比较对象,依然是可以相同也可以不同。
如:John is not as old as he looks.
3、A+系动词+ as +形容词+ as + B。
如:
Louis is as old as James.
Louis和James同龄。
4、A+系动词+ as +形容词+ as +主语+谓语。
主语+谓语在此处常表达主观观点。
如:
it' s not quite as easy as you might think.
它并不像你想象的那么容易。
You might think就是主语加谓语表主观观点的结构。
5、as +形容词+a(n)+单数名词+ as。
如:
A lion is just as dangerous and fierce an animal as a tiger.
狮子是一种危险和凶猛的动物,这和老虎一样。
正常语序应该是a dangerous and fierce animal, 这里由于as是副词,形容词前面要用副词修饰,所以要把形容词放在as后面。
6、名词+ as+形容词+ as。
这一结构就是省去上面的a(n)+单数名词。
如:
A lion is just as dangerous and fierce as a tiger.
狮子和老虎一样,既危险又凶猛。
7、A+系动词+ as +形容词+状语1+ as+状语2。
My mind isn' t(系动词) as sharp(形容词) in the afternoon(时间状语)as in the morning.
我的思维下午不如上午反应能力灵敏。
as…as句型习题:
1、It is just ( ) among countries to host the Olympics as to win an Olympic medal.
A.so fierce a competition
B.as fierce a competition
C.such a fierce competition
D.too fierce a competition
【答案】B。
【考点】形容词的用法。
【句意】举办奥运会和赢得奥运会奖牌一样激烈。
【解析】
句中已给出一个as,所以本题考查“as.......as....”引导的比较状语从句;第一个as是副词,is是系动词,后接形容词,所以用“as fierce a competition”。 故选B。
2、The piano in the other shop will be _______ , but _______.
A. cheaper; not as better
B. more cheap; not as better
C. cheaper; not as good
D. more cheap; not as good
答案: C。
本句是省略句,其完整形式为:The piano in the other shop will be cheaper, but it is not as good as the one in this shop. cheap的比较级为cheaper,而as ... as中间的形容词应用原形,因此选择C。
3、The great use of a school education is not so much to teach you things _______ to teach you the art of learning.
A. as
B. rather than
C. nor
D. than
答案:A。
本题句意为“学校教育的最大用处不是教会你多少东西,而在于教给你学习的艺术”。上下文之间是not so ... as结构,因此选择A。
4、With the help of the German experts, the factory produced _______ cars in 1993 as the year before.
A. as twice many
B. as many as twice
C. as twice as many
D. twice as many
答案:D。
本题句意为“在德国专家的帮助下这家工厂1993年生产的小汽车是上一年的两倍”。本句是用as ... as结构表示倍数,应把具体倍数放在as ... as结构之前,因此选择D。
5、In the world no country has exactly the same folk music _______ that of any other.
A. with
B. as
C. to
D. like
答案:B。
本题句意为“世界上没有哪个国家具有与任何其他国家完全相同的民乐”上下文之间是“the same ... as”结构,意为“与……相同的”,因此选择B。
as…as和so...as的区别:
as...as表示“与……一样”之意;用于同级比较时,既可用于肯定中,也可用于否定句中。
so...as只能用于否定句中,也就是说,通常是以not so...as出现的。在否定句中既可以用not as...as...也可以用not so...as,而在肯定句中只能用as...as。
例句:
Petrol now is twice as expensive as it was a few years ago.
现在汽油的价格是几年前的几倍?。
She was nearly as tall as he was.
她几乎和他一样高了。
English is not so(as) difficult a subject as French.
英语不是像法语一样难的科目。