Unit 3&4 Grammar and usage 虚拟语气 课件+学案-2021-2022学年高中英语牛津译林版（2020）选修第一册

B8U3&4 Grammar Subjunctive Mood 1. Unreal conditionals · To talk about an (1)_________ situation, we use unreal conditionals. · We form unreal conditionals in different ways. · Present: If ... were/did ..., .... would/should/could do … · Past: If... (2)________..., … would/should/could have done ... · (3)_______: If... were/did/should do/were to do ..., ... would/should/could do · We use mixed conditionals when the time of the main clause is different from that of the if-clause. If sb.____(条件句) Sb. ______（主句） 与现在事实相反 与过去事实相反 与将来事实相反 If I __________(value) the true love when I got it, I ________________________ (not regret) when I lost it. If God ____________(give) me another chance right now, I ___________ (say) the three words to the girl, “I love you”. · We use mixed conditionals when the time of the main clause is different from that of the if-clause. If he had studied hard before, he could do it easily now. 错综时间条件句→___________________________ · 省略+倒装：从句中有 were, had 或 should 时，省略if ，把它们放在句首。 If she were here, she would agree with us.  → __________________, she would agree with us.  If it should happen, what would you do?  → __________________, what would you do?  If he had recognized me, he would have come over.  → __________________, he would have come over.  2. Implied Conditionals Without air, there ____________(be) no living things. But your help, I ______________________(not finish) it. I would have finished the work, but I ________(be) that day. I was ill yesterday. Otherwise, I _____________________(attend) the meeting. · 有时假设的情况不用条件句表达，而是用____________________等介词(短语)或上下文来表示。 · 虚拟条件通过but暗示出来，模式为“________________________________”。 · 用连词otherwise, or等暗示后文与前面的情况相反，从而引出________________的虚拟语气。 3. In clauses 3.1 建议类 主句中有表示________________________________等词中，________________从句谓语通常用“(should) do” 。常见的此类动词有________________________________________________________________________________________________ ____________________________________________