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2016年全国英语等级考试一级语法讲义七

来源 :华课网校 2016-06-08

  2016年全国英语等级考试一级语法讲义七

  as + 形容词或副词原级 + as

  1)在否定句或疑问句中可用so… as。

  He cannot run so/as fast as you.

  2)当as… as 中间有名词时采用以下格式。

  as +形容词+ a +单数名词

  as + many/much +名词

  This is as good an example as the other is.

  I can carry as much paper as you can..

  3)用表示倍数的词或其它程度副词做修饰语时,放在as的前面。

  This room is twice as big as that one.

  Your room is the same size as mine.

  4) 倍数+ as + adj. + as <=> 倍数+ then + of

  This bridge is three times as long as that one.

  This bridge is three times the length of that one.

  Your room is twice as large as mine.

  Your room is twice the size of mine.

  the + 最高级 + 比较范围

  1) The Sahara is the biggest desert in the world.

  形容词最高级前通常必须用定冠词 the,副词最高级前可不用。

  形容词most前面没有the,不表示最高级的含义,只表示"非常"。

  It is a most important problem. =It is a very important problem.

  注意: 使用最高级要注意将主语包括在比较范围内。

  (错)Tom is the tallest of his three brothers.

  (对)Tom is the tallest of the three brothers.

  2) 下列词可修饰最高级,by far, far, much, mostly, almost

  This hat is nearly/almost the biggest.

  注意:  a. very可修饰最高级,但位置与much不同。

  This is the very best.

  This is much the best.

  b. 序数词通常只修饰最高级。

  Africa is the second largest continent.

  3) 句型转换:

  Mike is the most intelligent in his class.

  Mike is more intelligent than any other students in his class.

  4) "否定词语+比较级","否定词语+ so… as"结构表示最高级含义。

  Nothing is so easy as this.=Nothing is easier than this.

  =This is the easiest thing.

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