</p> 1. 与现在的事实相反:[If --- + were/did---, --- + would do---]
6 v, d8 V( k$ V1 I$ I If I were you , I would marry him.
3 r/ ?# ^+ a; j; i3 z. ` 如果我是你,就会嫁给他。# o- |, I: I8 z1 Z1 M/ B) \! S
2. 与过去的事实相反:[If --- + had done---, --- +would have done---], M9 h* T0 O: b) Q2 }
If you had worked hard , you would have passed the exam.
4 a5 O6 k4 f- ~8 m4 Y( D 如果你用功学习,就会通过考试了。" w8 ]; Q6 F0 @# a
3. 与将来的事实可能相反:[If ---+ should do---, ---+ would do---]
9 b4 ~2 A: O4 v& B6 x- a If it should rain tomorrow , what would you do ?+ V9 Y/ z) B+ z# I8 Z: D1 w
如果明天下雨,你怎么办?2 X; u% [, x9 A# R
第二种:用在表示要求、建议、命令等的名词从句中中 华 考 试 网/ u/ P8 x9 G6 h8 A P! C) \
从句谓语形式为:“---(should ) + do sth”(在美语中should常省去) 。
8 J) W1 w# p. l" U' W" Q# B 类似用法的动词有:
0 k: G; a8 Z+ J insist (坚持) , suggest (建议) , order(命令) , propose (建议) , demand (要求) , command (命令) , advise (建议) , desire (要求、请求) , request (请求) , require (需要、要求) , ask (要求) , prefer (宁愿), recommend(推荐) , arrange ( 安排) , advocate ( 拥护、提倡) ,maintain(坚决主张)等后面的宾语从句中。
& ~; P, z! d3 V- M 第三种:用在“It + be + important (,necessary , natural , essential , strange , absurd , amazing , annoying , desirable, surprising , vital , advisable , anxious , compulsory , crucial , imperative , eager , fitting , possible , impossible , improper , obligatory , probable , preferable , strange , urgent 等, 以及insisted , suggested , ordered , requested , arranged , recommended 等) + that ---”结构中的that 引导的主语从句中
- o, d0 a/ C) `: f" E7 r 第四种:用在It is time that --- 结构中, 表示“该干某事了”, 含建议的意思, 用动词过去式。+ b9 h' w. a1 g8 W. B+ y# U0 Z
It is time (that) we went to bed .5 F) P+ ]7 G& @- j* ^: g
咱们该睡觉了。
# ]4 U: s2 K, X I/ g% _0 c 注意: time 前可加about (表示“大约”) 或high(表示“强调”) 等。 |