[10-20 18:11:12] 来源：http://www.67xuexi.com 高一英语 阅读：85231次
334. If I (we,you,he,she,it,they)+had+过去分词335. I (we) should
336. You (he,she , +have+过去分词或：
337. they,it ) would
338. 所有人称+could(might)+have+过去分词
339. ②用法：
a) I would have checked my paper again if I had had more time at yesterday’s examination.(fact:I had no more time at yesterday’s exam, so I didn’t check my paper again)
b) You would have already recovered from his illness if he had seen the doctor in good time.(fact: He didn’t see the doctor in good time ,so he hasn’t recovered from his illness )
a) 表示与将来事实相反的情况
340. ①形式：
341. 条件从句的动词形式342. 主句的动词形式
343. If I (we,you,he,she,it,they)+行为动词的过去式(be的过去式一般用were)通常要与一个表将来的时间的状语连用
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