should用法归纳.doc

Four short words sum up what has lifted most successful individuals above the crowd: a little bit more.-author-dateshould用法归纳should用法归纳should用法归纳一、Should 表示过去将来时，即从过去观点看将来要发生的是，多用于间接引语中。We thought that we should never see you again. 我们想我们再也看不到你了。The BBC weather report this morning said that we should have rain.今天早上，BBC电台天气报告说，今天有雨。二、Should 表示义务、责任、常译为“应当”，“应该”，或表示一种估计的情况，译成“按理应当”，“估计.”。Why should I pay him? 为什么我该付给他钱?They should be there by now， I think. 我估计，他们现在到那儿了。Should 用于完成时态，表示对过去发生的动作的一种推测，译成“应该已经.”。You should have washed the wood. (But you havent.) 你应该把伤口清洗了。(然而你没有)三、Should 用于虚拟语气中。(1)用于It is necessary (important， strange.。that.。)中，在美国英语中should 常省去。It is important that we (should) learn English well. 我们学好英语很重要。(2)用于It is ordered (suggested)that.。中，而在美语中should常省去。It is decided that we (should) finish our work in a week.决定我们要在一周之内完成我们的工作。(3)用于表示命令、请求、建议、决定等词后面的宾语从句中，在美国英语中should常省去。He wrote， suggesting that Mr. Wang (should) come to Beijing. 他信中建议王先生到北京来。The commander ordered that the city (should) be taken in five days.司令员下令必须在五天之内占领这座城市。(4)should用于表示命令、请求、建议、决定等词后面的表语从句，同位语从句中，在美国英语中should 常省去。We all agreed to his suggestion that we (should) go to Beijing for sightseeing.我们都同意他的意见，去北京观光。My idea is that we (should) do exercises first. 我的意见是我们先做练习题。(5)用于if引导的从句中，表示与将来事实可能相反的假设。If it should rain tomorrow， we would stay home. 如果明天下雨，我们就呆在家里。四、在条件状语从句中，should 表示“万一”，即可表示不能实现的假设，又可表示可以实现的假设。If he should fail to come， ask Comrade Cheng to work in his place.万一他不来，就叫陈同志代替他的工作。Should it rain tomorrow， the meeting would be put off. 万一明天下雨，会议就延期。五、在某些从句中，should 表示惊异、意外等情绪，常译为“竟然”。It seems unfair that this should happen to me.真不公平，这件事竟然发生在我身上。六、should 用于主句中，主语是第一人称，表示某一条件下所产生的必然结果，并与事实相反;当主语是第二、三人称时，表示说话人或执笔人的意志或看法。If I met her， I should tell her about it. 如果我碰到他，我肯定会将此事告诉他。If he had much money， he should buy it. 如果他有很多钱的话，我就让他买了。七、当陈述部分含有ought to ，其反意疑问句部分，美国英语中用should . She ought to stay here， shouldn't her?她该留在这儿，是吗?八、用于成语中 I should like to.“我想(做).”I should like to ask the teacher a question. = I should love to ask the teacher a question. 我想问老师一个问题。-