[高二英语]高二英语选修六unit1-grammar电子教案

If he _h__a_d_d_r_i_v_e_n (drive)more carefully, hew_o_u_l_d_n__o_t _h_a_v_e_h_a_d__ ( not have)the car accident yesterday.
PRACTICE 2: Fill in the blanks.
如果你来早点，你就会赶上那辆公共汽 车了。
(4) If he had seen you yesterday, he would have returned your book.
如果昨天他看到你，他就会还你书。 总结2：表示与过去的事实相反， if 从句用过去完成时had done
主句用 would/could/should + have done.
总结1： 表示与现在事实相反， if 从句用过去时were, V+ed,
主句用would/should/could+ V.(原形)
If I won the lottery, I would buy an expensive car.
If I had a lot of money, I would buy a villa.
help me with my physics. 假如他明天来，他会帮助我复习物理的。
(6) If he should see me tomorrow, he would know me. 假如他明天看见我，就会认识我了。
总结: 表示于将来事实相反， if 从句可用were to ; should+v; 过去式
a. 表示与现在事实相反的假设 b. 表示与过去事实相反的假设 c. 表示与将来事实相反的假设
观察1：
(1) If I were you, I should finish my homework at first. 如果我是你，我会先完成家庭作业。
(2) If I had time, I would go there. 如果我有空，我会去那儿。
a. If Tom _h_a_d__b_e_e_n (be) more careful in the exam, he _w_o_u_l_d__h_a_v_e_p_a_s_s_e_d (pass) it already.
b. 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.
主句用would/should + v. (原)
If you succeeded, everything would be all right. If you should succeed, everything would be all right. If you were to succeed, everything would be all right.
d. If I _w_e_r_e (be) in your position, I _w_o_u__ld__a_sk_ (ask) for teacher’s help.
• 观察2：
(3) If you had come earlier, you could have caught that bus.
2. 与过去的事实相反
从句的谓语用had＋过去分词, 构成If I (we, you, he, they)＋had＋过去分词的 形式； 主句的谓语用should(第一人称)/would (第二、三人称) /could/might have ＋动 词过去分词。
If we had reviewed the text, we should have pass the exam.
c. 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.
观察3： (5) If he were to come tomorrow, he should
PRACTICE 3: Fill in the blanks a. If there _sh_o_u__ld__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_ld__h_a_p_p_e_n_ (happen) if you _sh__o_u_ld__g_e_t_u_p_ (get up) too late tomorrow?
If I had a lot of money now, I would travel around the world.
PRACTICE 1: FilΒιβλιοθήκη Baidu in the blanks.
a. If they _w_e_r_e(be) here, they w__o_u_ld__t_a_k_e_ (take) your advice.
[高二英语]高二英语选修六 unit1-grammar
二. ‘if ’虚拟条件句的概念
由 ‘if’ 引导的虚拟条件句叫作 ‘if’虚拟条件句 I could easily recognize him if I had seen before.
三. if Sentence Structure ‘if ’虚拟条件句的结构
b. If the world-war _b_u_r_s_t (burst) out again, what _w_o_u__ld__h_a_p_p_e_n_ (happen) to our people on earth?
c. If the policeman _w_e_r_e_n__o_t (be not) in that room, it _c_o_u_l_d_b__e (be) very dangerous.
c. If Robots _w_e_r_e_t_o__c_o_n_tr_o_l (control) the world some day, here _w_o_u_l_d_b__e (be) no friendship.