虚拟语气定义：表示说话人所说的不是事实，而是一种假设、愿望、 要求、建议或推测。 一、虚拟语气在 if 非真实条件句中 1. 对现在的虚拟 if 条件句中的谓语 主句的谓语动词 动词 动词用过去形式 (be 动词用 were) should/ would/ could/ might + 动词原形
1. 如果我是你，我就接受他的建议。 If
I were you, I would accept his advice. 2. 如果我有一百万，我会带着全家去全世界旅行。 If I had a million dollars, I would travel around the world with my family. 2. 对过去的虚拟
should/ would/ could/ might had done + have done
If it should be fine tomorrow, we would go for a trip. 2. 如果我明天来的话，我会把书带给你。 If I were to come tomorrow, I would bring the book to you. 1. If I______（be ) you , I would accept this job offer. 2. If I had time, I ________ (go) to the concert. 3. If you________（arrive）a little earlier , you would have caught the bus. 4. I _______________ (buy) the car if I had had enough money. 5. You would have succeeded if you _________(keep on) trying. 6. If the contest _______________ (take place) tomorrow, I would probably go and see it. 7. If the earth _______ (have) no gravity, the moon would/should fly to the sun. 8. If she hadn't taken your advice, she ______________________(make) a serious mistake. 9. If I _____(be) you, I would reconsider their proposal(建议). 10. If he ________(be) you, everything would be all right. 有时 if 从句 if 可以省略，但是要呈现 倒装的形式。 1. Were I you, I would accept his advice. 2. Were I to come tomorrow, I would bring the book to you. 有时 if 从句用介词短语或副词表示。 1. If I hadn’t had your help, I couldn’t have finished my job.
= Without your help, I couldn’t have finished my job. = But for your help, I couldn’t have finished my job. = You helped me. Otherwise, I couldn’t have finished my job. 二、虚拟语气在 wish, as if /as though, only if 句中的应用 1. wish 中的体现 were/ did had done would/ could do 和 wish 同时发生 在 wish 之前发生 在 wish 之后发生
1. It seems as if it ____ already summer now. (be) 2. I wish I _________ him the day before yesterday. (see) 3. I wish I _________ (rest) tomorrow. 4. I wish you_________ (get) full marks in the next exam. 5. He walks as if he______ (be) 80 years old. 三、虚拟语气在表示建议要求的应用。 1.常见动词有 insist， order， command， require, request, demand, advise, suggest, propose, recommend 等宾语从句中用 should do。 1. 他建议我们多锻炼。 2. 他坚持要求我们按时完成作业。 3. 那个人表明他不满意他的工作。 4. 他坚持说自己是对的。
2.用于同位语从句或表语从句。如以下名词 suggestion，proposal，order, plan, idea, request, advice 后跟同位语从句或表语从句中用 should do 3.用于主语从句中。 It’s desired/ suggested/ proposal/ necessary/ important/strange/ essential that 1. 我的建议是我们这周休息。 My suggestion is that______________________. 2. 我们都同意他让我们去旅游的建议。 We all agree to his advice that__________________. 3. 人们建议建立一个新的医院。 It is suggested that______________________. 4. 运用新的学习方法是必要的。 It is necessary that_____________________________. 四、特殊句型中 1. It’s high time that sb. do sth. / sb. did sth. 2. May sb. do sth. 祝愿某人…… 1. 他该去俱乐部了。 2. 祝愿你们幸福。 现在该做某事