今日得閑,讓我多聊幾句:
大多數(shù)的情態(tài)助動詞具有一詞多義的特征,就以表示推測性用法為例:
表示有"可能 "的might,may,could,can;表示 "很有可能"的should ,ought to,would,will;表示"最肯定"的must等.
假設(shè)有如下情景:A說" Someone has broken the window" B的回答可能是:
It might/may/could/can/should/ought to/would/ will/must be Tom.
一般來說,might表示可能性程度最低,must表示的程度最高,其程度排列由低而高.
說明一點:can,could多用于表示否定性的推測(或疑問):He can't be there now.The moon can't always be at the full.
He couldn't stay there yesterday.He can't have stayed there yesterday.
其他例句:
Can this be true?--It can't be true.
Where can he have got to?
There must be something wrong.
There will be still some shops left open.
You must be joking.
She must have been very young when she got married.
一時半會講不完情態(tài)動詞表示推測在不同句型的用法,就補充這些作罷!