1、只能作表語的形容詞。

　　2、特殊形容詞、副詞的比較級和最高級。

　　3、比較級多用than，個別情況下用 of the two。比較時，前后成分一定一致。

　　4、the +比較級…，the+比較級

　　5、as+原級+as ， not as / so +原級+as

　　6、“as+原級+as”可以用來表示倍數(shù)。

　　He is almost as tall as his brother。

　　My father isnt as old as he looks。

　　This word is used less frequently in British English than in American English。

　　Spanish people usually speak more quickly than English people。

　　Winter is drawing near. Its getting colder and colder。

　　The more you practise writing， the better you will do it。

　　The more work we give our brains， the more work it is able to do。