英語時(shí)態(tài)用法講解 |
let 的用法講解 |
1、當(dāng)let后只有一個(gè)單音節(jié)動(dòng)詞,變被動(dòng)語態(tài)時(shí),可用不帶to 的不定式。2、若let 后賓補(bǔ)較長時(shí),let 通常不用被動(dòng)語態(tài),而用allow或permit 代替。 |
短語動(dòng)詞的被動(dòng)語態(tài) |
短語動(dòng)詞是一個(gè)整體,不可丟掉后面的介詞或副詞。 |
表示"據(jù)說"或"相信"的詞組 |
It is said that…據(jù)說/It is reported that… 據(jù)報(bào)道/It is believed that…大家相信/It is hoped that…大家希望/It is well known that… 眾所周知 |
不用被動(dòng)語態(tài)的情況 |
1、不及物動(dòng)詞或動(dòng)詞短語無被動(dòng)語態(tài)2、不能用于被動(dòng)語態(tài)的及物動(dòng)詞或動(dòng)詞短語3、系動(dòng)詞無被動(dòng)語態(tài)4、帶同源賓語的及物動(dòng)詞,反身代詞,相互代詞,不能用于被動(dòng)語態(tài)5、當(dāng)賓語是不定式時(shí),很少用于被動(dòng)語態(tài) |
主動(dòng)形式表示被動(dòng)意義 |
1、wash, clean, cook, iron, look, cut2、blame, let(出租), remain, keep3、在need, require, want, worth (形容詞), deserve后的動(dòng)名詞必須用主動(dòng)形式。4、特殊結(jié)構(gòu):make sb. heard / understood ,have sth. done |
被動(dòng)形式表示主動(dòng)意義 |
be determined, be pleased, be graduated (from), be finished, be prepared (for), be occupied (in), get marries |
need/want/require/worth |
當(dāng) need, want, require, worth(形容詞)后面接doing也可以表示被動(dòng)。 |