(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。可在 look, seem 等系動(dòng)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(gè)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(gè)小孩跟我們講話就像個(gè)大人一樣。2 as if 從句的語氣及時(shí)態(tài) 當(dāng)說話者認(rèn)為句子所述的是真實(shí)的或極有可能發(fā)生或存在的事實(shí)時(shí)，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(dāng)說話人認(rèn)為句子所述的是不真實(shí)的或極少有可能發(fā)生或存在的情況時(shí)，as if 從句用虛 擬語氣。表示與現(xiàn)在事實(shí)相反，謂語動(dòng)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(shí)間為止發(fā)生的事實(shí)相反，謂語動(dòng)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(zhǎng)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(dòng)也不動(dòng)，像已經(jīng)變成了石頭。表示與將來事實(shí)相反，謂語動(dòng)詞用“would / could / might + 動(dòng)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(dòng)詞”結(jié)構(gòu)，可省略主語和系動(dòng)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(dòng)詞-ing 形式等。he acts as if (he was) a fool.他做事像個(gè)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