虚拟语气类别用法例句If引导的条件从句与现在事实相反从句动词：过去式（be用were）主句动词：should/would/could/might+动词原形If he were here, he would help us.与过去事实相反从句动词：had+过去分词主句动词：should/would/could/might+have+过去分词If I had been free, I would have visited you.与将来事实相反从句动词：过去式 / should+动词原形 / were+不定式主句动词：should/would/could/might+动词原形If it should rain tomorrow, we would not go camping.其它状语从句as if引导的状语从句中动词用过去式或过去完成式They are talking as if they had been friends for years.in order that / so that引导的状语从句中动词用can / could / may / might / would等+动词原形Turn on the light so that we can see it clearly.宾语从句demand, suggest, order, insist后接的从句中动词为should+动词原形He suggested that we not change our mind.wish后的从句中分别用过去式，过去完成式和should/would+动词原形表示与现在，过去和将来情况相反I wish I could be a pop singer.主语从句在It is necessary / important / strange that, It is suggested / demanded / ordered / requested that 等从句中，谓语动词用should+动词原形It is strange that such a person should be our friends.其它句型中It is time that句型中动词用过去式或should+动词原形Its high time that we left.would rather所接的从句中动词用过去式或者过去完成式I would rather you stayed at home now.If only句型中动词常用过去式或者过去完成式，表示强烈的愿望If only our dream had come true!【专项训练】1、It is important that a college student a foreign language.Awill masterBmasterCmastersDwould master2、It is strange that she without saying a word.Ashould have gone outBwentCshould go outDgoes out3、If my lawyer here last Saturday, he me from going.Ahad been, would have prevented Bhad been, would preventCwere, would prevent Dwere, would have prevent4、“He is a brave man.”“Yes, I wish I his courage.”AhaveBhadCwill haveDmay have5、If it rain, the crops would be saved.AshouldBwillCis going toDwas to6、He ordered that the medicine by a special plane.Awas sent Bwould be sentCshould sendDbe sent7、If you the medicine, you better now.Atook, would feelBhad taken, feltChad taken, would feelDtook, would have felt8、She is my sister, but she often acts as if my mother.AisBwasCwereDhad been9、I went to bed early last night, but I wish I so.Adidnt doBhadnt doChavent doneDcouldnt do10、Id rather he tomorrow afternoon.Awill comeBcomesCcomingDcame答案：1、B2、A3、A4、B5、A6、D7、C8、C9、B10、D十四，并列句知识要点：1、熟悉并掌握并列句的结构和常用的并列词的用法；2、注意while, when 和 for等作并列连词的用法。什么叫并列句：由两个或两个以上的简单句并列连接起来的句子叫并列句。并列句的基本句型：简单句 + 并列连词 + 简单句注意：（1）yet和still是连接副词，也叫半连接词。它们是副词。又起连接作用，但不如and, but, or等强，用了yet或still，前面还可加and或but。He is tired, (but) still he will make another experiment. 他很累，但他仍然要做另一个实验。I got up very early, (and) yet I failed to catch the first bus. 我起得很早，然而还是没有赶上头班车（2）while意义相当于at the same time表示相反和对照，常用来连接两个意义对立的分句。I like football, while my sister likes basketball. 我喜欢足球，而我姐姐喜欢篮球。when = and then, just then或at that time, during the time. We were ready to rush away, when the snake moved. 我们正准备离开，这时蛇移动了。while和when作为并列连词使用时常是放在第二个分句前边，并有逗号和第一分句隔开。3、for表示附加或推断的理由、原因。therefore比so更正式，and so比较口语化。【专项训练】：一、用适当的并列连词填空：1、He couldnt know the truth about me, he wouldnt treat me like this.2、The bell is ringingthe lesson is over.3、Although he was ill, he kept on working.4、I cant make up my mindwe will go to Shanghaiwe will stay in our city.5、He doesnt talk much, he thinks a lot.6、It must have rained last night the ground is still wet.7、The president will visit the town in May he will open the new hospital.8、Jane was dressed in greenMary was dressed in blue.9、he did not speak distinctlyI did not hear it clearly.10、He is clever, , he often makes mistakes.11、did we write to herwe called up her.12、He hasnt any moneyIm going to lend him some.13、The child was sick; he, , didnt go to school.14、Mary was neither happy, was she sad.15、Put on more clothes, youll catch cold.二、选择最佳答案：16、Some are reading magazines, others are playing cards.AorBforCsoDwhile17、We must get up early tomorrow. well miss the first bus to the Great Wall.AsoBorCbutDhowever18、I dont like chickenfish.I dont like chicken, I like fish very much.Aand, andBand, butCor, andDor, but19、We wanthigh speedgood quality.Aboth, andBeither, orCneither, norDnot, but also20、In spring it ishotcold here.Aboth, andBeither, orCneither, norDnot only, but21、does he writes well, he also speaks well.ANot only, butBNot, but CEither, or DBoth, and22、Use your head, youll work it out.AsoBorCandDfor23、I want to buy the jacket, I have not enough money with me.AbutBsoCorDfor24、youI am going to help Tom.AEither, orBNot, butCNot only, andDEach, and25、The soldier was wounded, he pushed o