人教版英语必修三Unit 1(虚拟语气)经典课件(共48张PPT)

‘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
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.
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.
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
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.
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
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 ___.
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
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.
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.should fall
D.were to fall
8.If it ________ so hard，we’d go to town.
A.isn’t raining
+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
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)
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
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 .
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
terday, I would have seen him. 如果我昨天来，就会看见他了。
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.
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.
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,
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
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…
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.