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 ever/meet before)
(⒋ He /turn round / he / not see me)
Ⅱ.从句表事实
例：
① It looks as jf it's going to rain.
② His thought sounds as jf it's not practical.
③ It smells as jf something is burning in the kithen.
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 + 三种非谓语动词
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)
