more ,the more (more代表形容词和副词的比较级)
er或however引导让步状语
引导让步状语
4.感叹句
 ①句式:The more 主+谓,the more 主+谓。
  例句The more you listen to English ,the easier it will become.
 ②句式:However+形容词/副词+主+谓
  例句However difficult the problem may be ,we must work it out this evening.
 ③句式:Whatever+名词+主语+谓语
  例句:Whatever reasons you have, you should carry out your promise.
 ④句式:名词/形容词/副词/动词+as/though+主+谓
  例句:Tired as /though he was ,he still went on with his work
  注意:如果是a/an+名词提前冠词省略
  尽管他还是个孩子,他知道的很多
  ________Boy as he is ,he knows a lot.
 ⑤感叹句。句式what+形容词+不可数名词+主语+谓语
  What a/an+形容词+名词单数+主+谓
  How+形/副+主+谓