【#第一文档网# 导语】以下是®第一文档网的小编为您整理的《If条件句和虚拟语气》，欢迎阅读！
If条件句和虚拟语气 if 条件句和虚拟语气 包含条件从句的句子叫条件句。条件句有两类：一类是真实条件句（First conditional）,一类是非真实条件句(Second Conditional)。如果假设的情况是有可能发生的，就是真实条件句；如果是纯属假设情况或是不可能发生或可能性不大的情况，则是非真实条件句。 1.真实条件句,可用if和unless引导 1）一个动作发生，另一动作随之发生 I’ll lend Peter the money if he needs it. If he has time, he will come. If he doesn’t come before 12 o’clock, we won’t wait for him. I shall go tomorrow unless it rains. I won’t go to her party unless I am invited. 2）表示命令、建议或请求,这时的if等于when If she telephones, let me know. Give my love to Lawrence if you see him. 3)will用于if从句中，不表示将来，而表示愿意或坚持的意思 If you will come this way, I’ll take you to the manager’s office. If you will get drunk every night, it’s not surprising you feel ill. 2. 非真实条件句 非真实条件句包括虚拟条件句和错综时间条件句 1）虚拟条件句分三类，其结构列表如下： 条件从句 与现在事If＋主语＋动词的一般过去实相反 时（be动词一般用were） 与过去事If＋主语＋had＋过去分词 实相反 与将来事If＋主语＋一般过去时 实相反 If＋主语＋were to If＋主语＋should＋动词原形 结果主句 主语＋would/could/might＋动词原形 主语＋would/could/might＋have＋过去分词 主语＋would/should/could/might ＋动词原形 If I become president, I’ll make all of my people live a happy life. (竞选总统的候选人这样说) If I became president, I’d make all of my people live a happy life. (一个小学生这样说) l 以下与现在事实相反 He wouldn’t feel so cold if he were indoors. I am sorry I am very busy just now. If I hade time, I would certainly go to the movie with you. l 以下与过去事实相反 If you had come here a little earlier, you would have met the pop star. I don’t know what would have happened if Jane hadn’t been able to speak Japanese. l 以下推测将来 If I were to do the work, I should do it in a different way. If it should rain again, what else could we do? 2) 错综时间条件句 本文来源：https://www.dywdw.cn/aadafe5c01768e9951e79b89680203d8cf2f6a57.html
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2023-11-06
