#叶式#如何学好语法之虚拟语气（完整版）

1、/了解语气语气分三种①陈述语气表示说话人认为他/她说的话是事实my friends never 盟敢势袂look for trou芟鲠阻缒ble我的朋友们从来不会自寻烦恼②祈使语气表示说话人提出请求，命令或劝告等be more careful next time下次要更加仔细一点③虚拟语气表示说话人认为他所说的话是和事实相反的主观设想或主观愿望if i had seem him yesterday，i would have told him the news.如果我昨天见到他的话，我会把这个消息告诉他的。在这里着重讲虚拟语气虚拟语气是英语语法板块一大重点承包中考高考四六级和专业四八级考试！/正确分析在虚拟语气里if的是从句后面才是主句/主从句谓语动词的时态与过去事实相反主句should/would/could/might+have done从句had done与现在事实相反主句should/would/could/might+动词原形从句过去式(be→were)if were youif i had enough money，i would buy myself a computer如果我有足够的钱，我将为自己买一台电脑。与将来事实相反主句should/would/could/might+动词原形从句过去式(be→were) if were youshould+动词原形were to +动词原形if it were to snow tomorrow,we would take photos 如果明天下雨，我们就照相。/would，could，might，will意义不一样would表示必然could表示能够might表示可能will 表示事实/省略连词ifif条件句，如果条件句有were，had，should，那么，有时候可以把if省略，然后把were，had，should移到主语面前if i were you,i would apply for the job=were i you,i would apply for the job如果我是你，我会申请那份工作的。/区分主从句表示不同的时间概念即住聚会和从句的动作发生的时间不一致=错综时间的虚拟语气had it not.beenif you had followed my advice,you would be better now.如果你(过去)听从了我的建议，那么你现在就会好很多。主句与现实事实相反，从句与过去事实相反/含蓄虚拟语气有时候假设的情况并不从句表示出来，而是通过一个介词或介词短语，上下文，连词或其他方式表达出来。without，but for要不是，in the absence of under，would，otherwise，or，but，but that ，once，though

2、/识别事实和假设混合句i would have gone to visit him句子前半部分是窘谒樗缚假设情况，而后面是事实/建议，要求，命令+(should)动词原形表虚拟语气advise，command，decide，demand，insist，maintain，order，prefer，propose/有些形容词和分词做表语时，表虚拟语气/有些名词接同位语，表虚拟语气

3、/wish+宾语从句a表示很难实现或不能实现，b表示将来的愿望c对过去的事情表示愿望，从句谓语动词had+过去分词

4、/as if从句说话人认为句子不是真实的，或是极少有可能发生的或现象，a与过去事实相反，谓语动词用had doneb表示与现在事实相反，谓语动词用一般过去时c与将来事实相反，谓语动词用could/might/would+动词原形

5、/it is ×time that是时候该…从句谓语用过去时(were)he 或you谓语动词都是were

6、/i would rather (that)我宁愿从句谓语用过去式，表示说话人的意愿i'd rather you did not tell him

7、/for fear that或lest唯恐以防，万一从句谓语动词 (should)+动词原形she closed the Windows for fear that she (should) catch cold

8、/if only但愿，要是if only i have done过去虚拟if only i +过去式 现在虚拟