人教版英语必修三Unit 1(虚拟语气)经典课件(共48张PPT)

I wish every day were my birthday.
I wish / wished I hadn’t eaten so much watermelon.
I wish it would rain tomorrow.
对比：
2
wish
+ did(与现在事实相反 ) + had done(与过去事实相反)
与将来相反
条件从句 条件从句的谓语形式
主语的谓语形式
与将来相反 If I (you, he/she, they, we )+动词过去式
should/would/could/ might+动词原形
If I (you, he/she, they, we )+should+动词原形
If I (you, he/she, they, we )+were to+动词原形
例： If I were a teacher, I would be strict with my students.
If I knew Bill’s phone number, I would call him.
中奖 ￥80,000,000
If I won the lottery,
I would…
虚拟语气表示说话人所说的话不是事实，
而是一种假设、愿望、怀疑或推测。该语 法主要用于if条件状语从句,也可用于主语 从句、 表语从句、宾语从句等。
重点
1、虚拟语气在if 虚拟条件句的用法 2、虚拟语气在wish后面的宾语从句中
的用法
3、虚拟语气在as if /as though引起的 从句中用法
1 一. if Sentence Structure
He behaves as if he owned the house.
( He doesn’t own it or probably doesn’t own it or we don’t know whether he owns it or not.)
She talks about Rome as though she had been there herself.
If I won (win) the lottery, I _w_o_u_ld__b_u_y (buy) an expensive car.
If I had a lot of money,
I would buy a villa.
If I__h_a_d___(have) a lot of money now,
C.should fall
D.were to fall
8.If it ________ so hard，we’d go to town.
A.isn’t raining
PRACTICE 3: Fill in the blanks
a. If there s_h_o_u_l_d__b_e (be) no natural resource any more, we s_h_o_u_l_d__m_a_k_e_ (make) use of nuclear power .
b. What _w_o_u_l_d_h_a_p_p__en_ (happen) if you _sh__o_u_ld__g_e_t_u_p_ (get up) too late tomorrow?
C. would miss
D. missed
2.—It was the drug，not the disease，that killed the boy.
—He would be still alive today if he ________ that drug.
A.not take
B.shouldn’t have taken
I would
take them to the museum. teach them how to give first aid.
DISCUSS
1、If I _w_e_r_e_ a teacher, I… 2、If I had a lot of money now, I…
PRACTICE 1: Fill in the blanks.
1.If the teacher asked me to solve the problem next time, I could try my best.
2.If he should fail in the experiment this time, he
would try again.
3.If we were to panic, we would not be able to help.
1. If they w__e_r_e (be) here, they _w_o_u__ld__ta_k__e (take) your advice.
2. If the world-war b__u_r_st_ (burst) out again, what _w__o_u_ld__h_a_p_p_e_n_ (happen) to our people on earth?
与过去相反
条件从句
条件从句的谓语形式 主句的谓语形式
与过去相反
If I (you, he/she,
should/would/could/
they, we )+had +过去 might+ have+过去分
分词
词
例：
If I hБайду номын сангаасd come here yesterday, I would have seen him. 如果我昨天来，就会看见他了。
Subjunctive mood
I went to the park yesterday.
Please keep quiet in the reading room.
If I were you,I would give an AIDS patient a hug.
虚拟语气
陈述语气
祈使语气
虚拟语气
2. If you _h_a_d__g_o_t (get) up earlier, you w__o_u_ld__h_a_v_e__ca_u__g_h_t (catch) the first train.
3. If I h_a_d__m__e_t (meet) you yesterday, we _w_o_u_l_d__h_a_v_e_g_o_n_e(go) to the concert together.
3
wish
In Subjunctive mood
+ did (与现在事实相反 )
wish
+ had done (与过去事实相反)
+would /could/ might +do (将来不大可能实现的愿望 )
I wish I were as tall as you.
I wish I were a bird.
A. have B. will C. do D. had
6.When a pencil is partly in a glass of
water, it looks as if it ＿＿＿＿.
A. breaks
B. has broken
C. were broken D. had been broken
C.didn’t take
D.hadn’t taken
3. Simon looks as though he never ___ a square meal(吃得饱), though his parents feed him very well. A. get B. getting C. got D. should get
If he_h_a_d_d_r_iv_e_n_(drive)more carefully,he_w__o_u_ld_n_o_t_h_a_v_e__h_a_d_ (not have) the car accident yesterday.
If I _h_a_d__le__a_r_n_t (learn)how to
If you had got up earlier, you could have caught the
train. 如果你早一点起床，就会赶上火车的。
If I __h_a_d__h_a_d____(have) time last night, Iw_o_u_l_d_h_a_v_e__g_o_n_e (go) to see the film with you .
swim, I w__o_u_ld__n_o_t _h_a_ve__b_e_en
（not be) trapped in this island.
PRACTICE 2: Fill in the blanks.
1. If Tom _h_a_d__b_e_en_ (be) more careful in the exam, he _w_o_u_l_d_h_a_v_e__p_a_s_se_d_ (pass) it already.
I_w__o_u_ld__tr_a_v_el (travel )around the world.
If it were (be)fine now, I would go (go)shopping.
If I _w_e_re_a teacher, I….
If I were a teacher,
not let them do so much homework.
‘if ’虚拟条件句的结构
通常有三种情况： ①与现在事实相反的假设 ②与过去事实相反的假设 ③与将来事实可能相反的假设
与现在相反
条件从句
条件从句的谓语形式 主句的谓语形式
与现在相反
If I (you, he/she, they, should/would/could/
we )+动词过去式
might+动词原形
c. If Robots w__e_r_e_t_o_c_o_n_t_r_o_l (control) the world some day, here _w_o_u__ld__b_e (be) no friendship.
2 as if / as though从句
did (与现在事实相反的) had done (与过去事实相反或想 象的事物)
3. If the policeman _w_e_r_e_n_o_t_ (be not) in that room, it _c_o_u_ld__b_e_ (be) very dangerous.
4. If I w__e_r_e (be) in your position, I w__o_u_l_d_a_s_k_ (ask) for teacher’s help.
4. He is talking so much about America as if he ___ there. A. had been B. were C. was D. been
5. – Have you ever been to Beijing?
-- No, but I wish I ___.
7.It is hard for me to imagine what I would be doing today if I ________ in love，at the age of seven，with the Melinda Cox Library in
my hometown.
A.wouldn’t have fallen B.had not fallen
1.My brother treats me as if I _w_e_r_e_ (be) a stranger. 2.She talks as if she __k_n_e_w___(know) everything.
3.They talked about the film as if they __h__a_d_s_e_e_n____(see) it before.
+would /could/ might +do (将来不大可能实现的愿望 )
3 as if / as though
did 与现在事实相反
had done 与过去事实 相反或想象的事物
1.Alan ___ the party if he had gone to London.
A. would have missed B. had missed