put

1.put是一时的动作，如可以说I put the pot on the shelf an hour ago，不可说I have put the pot on the shelf for an hour，该把put改作kept。又如I put my books in my study and my clothes in my bedroom等句子里的put该改作keep。

同样地，put on（把…穿上或戴上［on是副词］）也是一时的动作，如可以说He put on his cap and went out，不可说He put on his cap all day，该把put on改作wore。参见wear 1

2.put指“放…（在那里）”的动作，没有“使…留（在那里）”的意思，如“你可以把帽子留在桌上”该说You may leave your cap on the table，不该用put。