选修6 unit1 if虚拟语气公开课

4. would rather 的从句后面用过去时表现在或将来；用过去完成时表过去。如：I
would rather you told me the truth. I would rather you came today/tomorrow.
5．表示祝愿或诅咒的祈使句。如： May you succeed! / God bless you!
与过去事 实相反 had done
If条件状语从句
含义
If 从句谓语动词
主句谓语形式
表示对未来
的虚拟
did should do were to
would/could do
One years later , maybe you will be in Zhejiang University
visited should visit
虚拟语气在其他从句中的运用 1.as if /as through 引导的方式状语从句“好象／似乎” 1.The woman takes good care of the orphans as if she were ______(be ) their own mother. had studied 2.She speaks English so fluently as if she __________ (study) it in England. were 3. It looks as if it______(be) going to rain 2.在It is (high)time (that) …从句中的用法：从句中的谓语动
词用一般过去时(be用were)或should + 动词原形，表示“(现在)该……”，但 此时should不可省略。如： It’s time that I picked up my daughter. / It’s high time we should plant trees there. 3. 在 if only句型中的用法：句中的谓语动词用一般过去时(be用were)或过 去完成时，表示“要是……该有多好啊！”如：If only I were a bird. / If only I had taken his advice. (同 as if wish )

tomorrow.
fact
2.If it had rained yesterday, we would have stayed at home.
wish
if 引导的虚拟条件句
Part 1
What would you do if you had a million dollars?
If I had a million dollars now,I would…
If clause of Real Condition & Unreal Condition if 引导的真实条件句和虚拟条件句
Discovery
Compare the two sentences and find
the difference between a fact and a
wish.
1.I will sleep at home if it rains
要不是因为雾霾天气，你昨天很容易就会看见远处那座美丽的桥。
4.If you had taken the medicine last night, you would be
better now, but __y_o_u_d_i_d_n_’_t__. 如果你昨天就吃药了的话，那你现在就会好多了，但是你没有。
III. Adverbial clause of implied condition. 含蓄条件句
I.Adverbial clause with mixed condition 错综复杂句 True or False:
1.If you had taken the medicine , you wwoouuldldhbavee been better now. F 2.If you had taken the medicine , you would have

3. If someone called (call) you a fool, what would you say or do ？
Discuss with your deskmate and make a short dialogue.
If +主 +过去式（be动词的过去式用were）.., 主+ would/could /should/ might +动词原形
2. Change the following sentences: 1. They are not here, so they can’t help you now. could ____ help you now. If they were _____ here, they _____ 2. He did not come yesterday, so I did not tell him about it. have If he ____ _____ yesterday, I would _____ _____ had come _____ told him about it.
如果农民没有看见蛇， him.Ifhadn’t the snake_____________him , bitten 他就不会把蛇放进怀里。 he wouldn’t __________________. 如果农民没把它放进怀里， have died 蛇就不会咬它，如果蛇不 咬农夫，农民就不会死。
小试牛刀
couldn’t/wouldn't have missed ________________________(miss) the bus. should rain/were to rain (3) If it _________________________(rain) tomorrow, the sports meet would be put off.

yesterday. (happen) • He opened his mouth as if he __w__o_u_l_d_s_a_y___
something．(say)
5).It’s high time +that - did should do
你该走了。
It’s high time that you __w_e_n_t ___. (go)
3. without和but for 等构成的含蓄虚拟条件句。
Without sunlight, people’s life would be different from today. But for your help, I wouldn’t have finished the work.
含蓄虚拟条件句指句中没有明显的虚拟条件句，而是通过其他 方式（介词或介词短语，连词：but, otherwise等）来暗示存 在虚拟条件。这类条件句可以转化为if引导的条件句。
2. 虚拟语气的倒装 If I were a teacher, I would have lots of students. _W_e_r_e_ I a teacher, I would have lots of students.
If I had entered rui’an high school, I would not sit here now.
The Subjunctive Mood
(虚拟语气)
1、If 虚拟条件状语从句
含义 If 从句谓语 主句谓语形式
动词
与现在 事实相
反
were did
might/should would/could+ do
例句
If I were a teacher, I would not leave much homework