译林英语选修8Unit2虚拟语气在IF条件句中的用法(共25张PPT)

Have a survey Tick the sentences which use unreal conditionals
1. If I am free tomorrow , I will go shopping with you. 2. If I were you, I would study hard. 3. Even if I was very busy last week, I found time to exercise. 4. If life had not been so hard for me as a child, I would not have started working at such a young age. 5. If you like football, I can recommend a good coach for you. 6. If you had joined the chat room ten minutes ago, you would have known what we were talking about. 7. If I had the chance, I would have a cloned baby tomorrow. 8. If I got married in the UK, I would expect a present 9. If you were to fail my Maths test, I would have to take it again at the end of the term. 10. If you come to Brunei, you shouldn’t wear yellow.
We use unreal future conditionals to talk about imaginary future situations. E. g
1. If I hhaadd the chance, I wwoouulldd havee a cloned baby tomorrow.
● 虚拟语气用在if条件从句中
与现 在事 实相 反
从句 的谓语动词形式
主句的谓语动词形式
过去式
would/should/could/might+动词
( be动词用were ) 原形
如果我是你们，我一定珍惜时间努力学习！
If I were you, I would value my time and study hard!
Learning 1. What are unreal conditionals?
Unreal conditionals state a condition or situation that is not real or is imaginary .
如果假设的情况完全不存在或者实现的可 能性很小,可以说几乎没有时,这种条件句就 是非真实的条件句即虚拟条件句，在虚拟条 件句中就要用虚拟语气(subjunctive)来表达。
2. How to form unreal conditionals or subjunctive?
We use unreal conditionals to state a present condition or situation that is not real or is imaginary. E. g
2. Shouulldd you ccoommee to Brunei, you wwoouulldd havveettoo take off your shoes before going to into someone’s house.
3. If you wweere too fail my Maths test, I wwoouulldd haveettoo take it again at the end of the term.
would/should/could/might+动词原形
与过 had+过去分词 去事
would/should/could/might have+过 去分词
实相 要是你努力了话，你一定通过那次考试了。
反
If you had studied hard, you would have past that test.
与将 来事 实相
①动词过去式 ②should+动词原形
• The subjunctive used in ‘if’ conditionals
Biblioteka Baidu Lead in
1. If I hhadd a pair of invisible wings ,I wWoouuld ffllyy in the blue sky.
2.. If you hhaad jjooinineedd the chat room ten minutes ago, you wwouullddhhavaevkenkownonwn what we were talking about
1.If life hhaadd not beeeenn so hard for me as a child, I woouullddnnootthhaavveestsatratertded working at such a young age.
2.If you hhaaddjojoinineedd the chat room ten minutes ago, you wouldd hhaavveekknnoowwnn what we were talking about
1. If I wweere you, I woouullddssttuuddyy hard.
2.If I hhaad enough money, I wwoouulldd ggoo around
the world.
We also use unreal past conditionals to refer to an imaginary past action. E. g