This is _______.A so useful information.B such useful information.应该选择A还是B?为什么?记得以前有过这样的例句：She is such a beautiful girl.=She is so beautiful a girl.但是今天看到上边这个题却选择了B.照以前的

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This is _______.A so useful information.B such useful information.应该选择A还是B?为什么?记得以前有过这样的例句：She is such a beautiful girl.=She is so beautiful a girl.但是今天看到上边这个题却选择了B.照以前的
This is _______.A so useful information.B such useful information.应该选择A还是B?为什么?
记得以前有过这样的例句：She is such a beautiful girl.=She is so beautiful a girl.
但是今天看到上边这个题却选择了B.照以前的讲解不是应该都对吗?

This is _______.A so useful information.B such useful information.应该选择A还是B?为什么?记得以前有过这样的例句：She is such a beautiful girl.=She is so beautiful a girl.但是今天看到上边这个题却选择了B.照以前的
so是副词,意思是“如此、这样”,后面常接形容词或副词；such是形容词,意思是“如此、这样”,修饰名词,即可接可数名词,也可以接不可数名词.例如：
It’s such a fine day.
It’s so fine a day.
从上面两例可以看出：
such修饰单数可数名词时,不定冠词a/an通常放在such之后紧挨着；而so则不同,不定冠词位置不同.其结构分别为：
such a/ an +形容词+单数可数名词；
so +形容词+a/an+单数名词.
such除了修饰单数可数名词外,还可以修饰复数名词和不可数名词,so是副词,修饰形容词或副词.
如果复数名词前有few,many等形容词；不可数名词前有little,much等形容词,就必须用so,而不能用such,例如：
The camel had such a long neck. 骆驼长着那样长的脖子.
Don’t make so much noise! 别那么大声嚷嚷.
而你的例句中,主语是this,谓语是is,表明了是第三人称单数,information是一个不可数名词,前面不能带不定冠词a/an,必须用短语如a piece of information之类的,如果用so就必须带上a piece of,但是用such可以修饰不可数名词,可不加,所以选B项.
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B such useful information
information 是不可数名词，前面不能＋冠词。必须由such 修饰。又如
such good weather . such rapid progress
如果是一个单数可数名词，则so good a boy = such a good boy
如果是一个复数可数名词，则such good books <...

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B such useful information
information 是不可数名词，前面不能＋冠词。必须由such 修饰。又如
such good weather . such rapid progress
如果是一个单数可数名词，则so good a boy = such a good boy
如果是一个复数可数名词，则such good books
另外当名词由表示数量的many much few little 修饰时，前面必须用so,如
so many books / so much water / so few people / so little money
但是such little worms(这么小的虫子）

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B such useful information

This is a _____gift,so I'm _______ A excited,exciting B exciting,excited This is a clever _______(hit) A:This is my grandfather B:_______ This movie is a little boring.( 改为同义句) this movie is _______ _______ boring.急 1:this is a _______(oothp) of our house.1:Let's ________(andce) together.3:The flower is so _______(lfuutieab).4:Let's go to________(oochsl).5:_______(usexec) me.May I come in? This is a book(改复数) _______ _______ bookThis is a book(改复数) _______ _______ books this is so sad this is so sad This is so solit He's good at maths.This problem is not _______ easy for him to work out.A.very B.too C.so D.quite hello!_______?this is tom.a.who is this b.who is that 为什么? steve is aiways careless,so he did _______ in this exama在第二个 Today is Friday,Mike _______(watch) a film this Saturday. ( ) This (is) (a) English (class.)_______改错快快快 Mary is a _______(regular)customer of this fashion designer 1.This is a very small room.= This is ________ _______ ________ room. 1.You seem to like sweets._______.That'sprobably why I'm becoming fatter and fatter.A So I do B So do I C So am I D So I am2.Is this your sock?Yes ,it's .But where is _______A the others B the other one (就这两个,其余是错的）3.I think this He is a doctor,so _______.he does wife is his wife his wife is