人教版英语选修六unit1语法(共43张PPT)

travel around the world. • If I lived on the moon at present, I might
see the beauty—Chang’e.
did/were
would/could/
If…（_过__去__式__）_sth,…m_i_g_h__t_/s_h__o_u_l_d__d_o_ sth.
Unit 1 Grammar the Subjunctive Mood
虚拟语气
if I were a boy
These sentences refer to a wish that can’t be true. （不可能实现的愿 望If）I were a butterfly, I’d thank you Lord for giving me wings. If I were a robin in a tree, I’d thank you Lord that I could sing.
(have) time on Nov 12th,I _w_o__u_ld__g_o_
(go) to Guangzhou to watch the 16th
Asian Games.
the mascots
of the 16th
Asian Games.
一、小结：虚拟语气在条件从句中的用法
条件 从句
If 从句谓语形式 主句的谓语形式
• I could have given you more help, but I was too busy.
• 二、虚拟语气在宾语从句中的运用
1.wish 引导的宾语从句中的虚拟语气
与现在事实相反
过去时（were）
与过去事实相反
had+过去分词
与将来 事实相反
would/could/migh t+动词原形
现在
过去式
(Present) (did/were)
would/could/shou ld/might +V. (原)
过去
(Past)
过去完成式 (had done)
would/could/shoul d/might +have done
未来
(Future)
过去式/
would/could/shou ld/might +V. (原)
I wish I could fly to the moon one day.
He wished he _h_a_d_n_’__t_b_e_e_n_i_n_v_o_lv_e_d___in such affairs( not involve) I wish I _w__er_e__a bird. (be)
If I were a bird, I would fly in the blue sky.
If I were a baby, I would never cry.
If I were a bright star, I would shine at night.
If I were a millionaire, I would travel everywhere.
book to the library. But you didn’t.
would rather引导的宾语从句中的虚拟语气
与现在事实相反
过去时（were）
与过去事实相反
had+过去分词
与将来 事实相反
过去时
I wish I could fly to the moon one day.
He wished he _h_a_d_n_’__t_b_e_e_n_i_n_v_o_lv_e_d___in such affairs( not involve) I wish I _w__er_e__a bird. (be)
stay at home. • If we had worked harder, we would
have won the game. • Had we worked harder, we would
have won the game.
1.Correct the mistake
were
If I _a_m_ a fish ,I could swim freely in the sea.
2.would rather宾语从句中虚拟语气的使用
• I would rather you posted the letter at once.
• I would rather you didn’t do it now. • I would rather you had returned the
would/could/
If…_w_e_r_e_t_o_dsoth,… m__ig_h_t_/s_h_o_u_ld__d_o（__原_形__）sth.
should do
【即学即用】
6.If itw_e_r_e__/_s_h__o_u_l_d__/w__e__rபைடு நூலகம்e__to__b__e(be) Christmas Day tomorrow, I _w__o_u__ld__g__e_t__(get) some gifts.
Answer my question
----What would you do if you had one million dollars?
----If I had one million dollars,I would________________.
【Find the rules（自我发现）】
should/were to +V
二、条件句中虚拟语气的倒装
If I were you, I would study hard.
=Were I you, I would study hard. • If it should rain tomorrow, I would
stay at home. • Should it rain tomorrow, I would
7.If you _g_o_t/_w_e_r_e_t_o__g_e_t _/s_h_o_u__ld__g_e_t(get) a full mark next time, I _w_o_u_l_d_t_r_e_a_t ___ (treat) you to candies.
Mark: 100
8.If I _h_a_d_/_w_e_r_e__to__h_a_v_e_/s_h_o_u__ld__h_a_v_e_
2.Contrary to the past（与过去相反）
If you had attended the meeting yesterday, you would have met her.
If the doctor had come last night, the boy would have been saved.
• If I had time next week, I would help you.
• If I should have time next week, I would help you.
• If I were to have time next week, I would help you.
did
(从句说的是过去，主句指的是现在) If you had followed the doctor’s advice, you would be well now.
蕴含条件句
• 5）假设的条件是借助介词短语或上下文 (but ;or;otherwise)表示出来，而不用if
• Without water, there would be no life. • Without your help yesterday, I
had done
would/could/might/should
If （…过__去_完__成_ ）sth, … ____h_a_v_e_d_o_n_e_____ sth.
（现在完成）
【即学即用】
4.If I _h_a_d_h_a_d_ (have) time last night, I _w__o_u_ld__h_av_e__s_e_en_(see) the Love of the Hawthorn Tree.
couldn’t have finished the work. • But for the bad weather, we would
have arrived earlier.
• They got two free tickets, or /otherwise they could never have been able to afford to go to Canada.
But sadly I’m not, so I must make the best of life as it is.”
混合条件句，又叫错综时间条件句
（4）从句表示的行为和主句表示的行为所 发生的时间不一致
If you had asked him yesterday, you would know what to do now.
5.If he _h_a_d_d__ri_v_e_n(drive) more carefully, hewould not have had ____________________________________ (not have) an accident yesterday.
【Find the rules（自我发现）】 3.Contrary to the future（与将来事实相反）
• 表示说话人所说的话不是事实，而是一 种假设、愿望或推测。
the Subjunctive Mood in “if” clause
一、虚拟语气在“if”条件句中的用法
【Find the rules（自我发现）】
1.Contrary to the present（与现在事实相反）
• If I were you , I would study hard. • If I had a lot of money now, I would
3.变为倒装句
If it should rain tomorrow, we would have to put off the visit to the park. S__h_ou_l_d_i_t_r_a_in__t_om__or_r_o_w_____,we would have to put off the visit to the park.
4.This machine is of good quality. If
it _________ break down in the first
year, we would repair it at our
expense.
A. would
B. should
C. could
D. might
【2009天津高考】
（动词原形）
【即学即用】 1.If it were (be) fine now,
I would go(go) shopping.
2.If I had (have) a lot of money, I would help (help) those poor people .
3.If everyone ___li_v_e_d____(live) a low-carbon life now, the earth w__o_u_l_d__b_e_(be) saved.
These sentences refer to a true situatoin. （一个事实）
If I feel depressed I will sing.
If I feel sad I will laugh.
If feel uncertain I will raise my voice.
• subjunctive mood is usually used to talk about the situations that are not true or not likely to become true.
2.If my English teacher hadn’t helped m I _________ the first prize in the English Writing Competition. A.would not win B. would not have won C. would win D. would have won