【简明语法】4.8 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他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 length¹ of that one.
　　Your room is twice as large as mine.
　　Your room is twice the size of mine.

1 length   

n.长度，长；期间，一段；程度，范围

参考例句：

• We need a length of pipe.我们需要一节管子。
• The length of this pencil is 17-centimetre.这铅笔17厘米长。