2019-2020年高中英語 第二冊 語法總結(jié) 虛擬語氣.doc

2019-2020年高中英語 第二冊 語法總結(jié) 虛擬語氣虛擬語氣分三種情況來掌握：1、虛擬條件句。2、名詞性虛擬語氣。3、虛擬語氣的其他用語。一、虛擬條件句：條件狀語從句是非真實(shí)情況，在這種情況下要用虛擬語氣。1、條件從句與現(xiàn)在事實(shí)不一致，其句型為：If 主語過去時(shí)，主語should(could, would, 或might)動(dòng)詞原形，如：If I were you, I would study hard.If it rained, I would not be here now.2、條件從句與過去事實(shí)不一致，句型為：If 主語had過去分詞，主語should(could, would, 或might)have過去分詞，如：If the doctor had e last night, the boy would have saved.If I had not studied hard, I would have failed in the exam last term.3、條件從句與將來事實(shí)不一致，句型為：If 主語+should(were to, 過去時(shí))do，主語should(could.)原形do，如：If it should rain tomorrow, we would stay at home.If I were to go to the moon one day, I could see it with my own eyes.If you missed the film to night, you would feel sorry.注意問題：1、If條件句中絕對不可出現(xiàn)"would"。2、根據(jù)句中的時(shí)間狀語，有時(shí)可能出現(xiàn)“混合虛擬”的情況，即主句可能是現(xiàn)在的情況，條件句也許是發(fā)生在過去的情況，但都是遵守上述句型。3、在條件句中如果出現(xiàn)were, had, should可省去if，將主語與這些詞倒裝，例如：Had the doctor e last night, the boy would have saved.Were I to go to the moon one day, I would see it with my own eyes.Should it rain tomorrow, we would stay at home. 二、名詞性虛擬語氣：在表示命令、建議要求、驚嘆時(shí)的名詞性從句中需用虛擬語氣，基本句型：主語(should)動(dòng)詞原形，如：Mother insisted that John go to bed at 9 oclock.（賓語從句）We suggested that the meeting should not be held.It was required that the crops should be harvested at once.（主語從句）The suggestion that he be invited was rejected.（同位語從句）That is their demand that their wages be increased.（表語從句）注意：在這種句子中絕不出現(xiàn)"would""must""could"等。 三、虛擬語氣在一些特殊詞中的使用或含蓄條件句：1、wish后的賓語從句：與現(xiàn)在愿望不一致主語過去時(shí)：I wish I were you.與過去愿望不一致主語had過去分詞：I wish I had visited the white House when I was in the states.與未來愿望不一致主語would(could)原形：I wish I could meet you tomorrow at the party.2、Its time句型：當(dāng)Its time后用that從句時(shí)應(yīng)該為“主語should原形”或“主語過去時(shí)”，例如：Its time that you went to school. 或Its time that you should go to school.3、If only引起的感嘆句相當(dāng)于“How I wish賓語從句”：If only he could e! 他要能來就好了。If only I had known the answer! 我要早知答案就好了。4、would rather, as if(though)引導(dǎo)的句子也需使用虛擬，表示過去的情況用過去完成時(shí)，表示現(xiàn)在與將來的情況用過去時(shí)，如：Id rather you posted the letter right away.Id rather you had returned the book yesterday.She loves the children as if they were hers.Alan talked about Rome as if he had been there.5、without, but, but for, otherwise引起的短語或句子常暗含著含蓄條件：Without you, I would never know him.But for your cooperation, we wouldnt have done the work so well. = If it were not for your cooperation, we we wouldnt have done the work so well.（注：without / but for. = If it werent not for./ If it hadnt been for.）But that she was afraid, she would have said no.I would be most glad to help you, but I am busy now.I am busy now; otherwise I would do you the favor! 專項(xiàng)訓(xùn)練1、It is important that a college student _ a foreign language.Awill master Bmaster Cmasters Dwould master2、It is strange that she _ without saying a word.Ashould have gone out Bwent Cshould go out Dgoes out3、If my lawyer _ here last Saturday, he _ me from going.Ahad been, would have prevented Bhad been, would prevent Cwere, would prevent Dwere, would have prevent4、 “He is a brave man.”“Yes, I wish I _ his courage.”Ahave Bhad Cwill have Dmay have5、If it _ rain, the crops would be saved.Ashould Bwill Cis going to Dwas to6、He ordered that the medicine _ by a special plane.Awas sent Bwould be sent Cshould send Dbe sent7、If you _ the medicine, you _ better now.Atook, would feel Bhad taken, felt Chad taken, would feel Dtook, would have felt8、She is my sister, but she often acts as if _ my mother.Ais Bwas Cwere Dhad been9、I went to bed early last night, but I wish I _ so.Adidnt do Bhadnt do Chavent done Dcouldnt do10、Id rather he _ tomorrow afternoon.Awill e Bes Cing Dcame（后設(shè)答案，大家不要偷看哦(*_*) 嘻嘻）KEYS1、B 2、A 3、A 4、B 5、A 6、D 7、C 8、C 9、B 10、D