(完整版)as_if_用法歸納

1、as if 用法歸納1 as if 從句的作用as if 一般可由 as though 來代替?？稍?look, seem 等系動詞后引導(dǎo)表語從句。如：h e looked as if / though he was ill. 他看起來好像生病了。i t seems as if it is going to rain.看來好像要下雨了。它還可引導(dǎo)方式狀語從句。如：i remember the whole thing as if / though it happened yesterday.我記得整個事情，就好像它是發(fā)生在昨天一樣。the child talked to us as if he

2、were a grown?鄄 up.那個小孩跟我們講話就像個大人一樣。2 as if 從句的語氣及時態(tài) 當說話者認為句子所述的是真實的或極有可能發(fā)生或存在的事實時，as if 從句用陳述語 氣。如：it sounds as if it is raining.聽起來像在下雨。he talks as if he is drunk.從他說話的樣子來看他是醉了。 當說話人認為句子所述的是不真實的或極少有可能發(fā)生或存在的情況時，as if 從句用虛 擬語氣。表示與現(xiàn)在事實相反，謂語動詞用一般過去式。如：you look as if you didnt care.你看上去好像并不在乎。he talked

3、as if he knew what had happened.他說話的樣子，好像他知道發(fā)生了什么事情。表示與過去或與談話時間為止發(fā)生的事實相反，謂語動詞用“had +過去分詞”。如： he talked about the great wall as if he had been there before.他說起長城來好像他以前去過那里。the girl listened as if she had been turned to stone.那女孩傾聽著，一動也不動，像已經(jīng)變成了石頭。表示與將來事實相反，謂語動詞用“would / could / might + 動詞原形”。如：he ope

4、ned his mouth as if he would say something.他張開嘴好像要說什么。it looks as if it might snow.看來好像要下雪了。3 as if 從句中的省略如果 as if 引導(dǎo)的從句是“主語+系動詞”結(jié)構(gòu)，可省略主語和系動詞等成份，這樣 as if 后就 只剩下名詞、不定式、 形容詞（短語）或動詞-ing 形式等。he acts as if (he was) a fool.他做事像個傻子。he paused as if (he was going) to let the sad memory pass.他停了下來，就好像要把悲傷的記憶抹去。the girl left the room hurriedly as if (she was) angry.女孩匆忙離開房間，好像生氣的樣子。from time to time, jaso