例：① He walks as if he was drunk.

② He walked as if he had been drunk.

仿(⒈ He/talk/know everything)

（⒉ He/treat me /I be a child)

(⒊ He /look at me /we /never/meet before)

(⒋ He /turn round / he / not see me)

Ⅱ.從句表事實

例：① It looks as jf it"s going to rain.

② His thought sounds as jf it"s not practical.

仿(⒈ look/he/be/older than you)

(⒉ sound /someone /knock at the door)

(⒊ we fell/there /be/something worng with the plan)

(⒋ taste /the soup /be/a little salty)

(⒌ smell/mother /cook dinner)

Ⅲ.as if/as though + 三種非謂語動詞

例：① He opened his mouth as if to say something.

仿(⒈ stand up/ leave)

（⒉ wave his hand /say goodbye to us)

② He lay on the ground as if sleeping.

仿(⒈ look out of window /wait for someone)

（⒉ sit there /think)