常用情态动词的基本用法should知识点
摘要: 常用情态动词的基本用法should知识点should用作情态动词时，有时表示具体的意思，有时却没有意义。主要用于下面......
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常用情态动词的基本用法should知识点 should 用作情态动词时，有时表示具体的意思，有时却没有意义。 主要用于下面几个方面: （1）表示出于职责、义务该做某事 You shouldn't come to such a decision hastily . 你不应该匆匆忙忙地作出这么一个决定。 You should write to your parents at least once a month . 你应该至少每月给你父母亲写一封信。 We should read English aloud every morning . 我们应该每天早晨朗读英文。 They should do it for their own good . 为了他们自己利益他们应该做这件事。 （2）表示对某种情况的估计 She shouldn't be out in such an early morning . 她不会这么一大早就出去了吧。 This book should be published in two months at most . 这本书最多两个月后就会出版的。 The effect of the tax should be felt in higher prices . 人们可能会从各种上涨的物价中感觉到这种税的影响的。
这次事件可能会将他们引向更严重的经济危机。 （3）表示惊讶、失望等情绪 I think it is dreadful that anyone should be so miserable. 我认为，竟然每个人都如此伤心就太糟糕了。 Why should I pay him for nothing ？ 我干吗要无为地付给他钱？ It seems so unfair that this should happen to me . 这件事竟然发生在我身上似乎太不公平了。 It's strange that it should be so cold today . 奇怪，今天怎么会这么冷。 （4）用于某些从句中表示虚拟语气 The doctor insisted that the girl should be hospitalized . 大夫坚持认为那个女孩要住院治疗。 She stood away so that he should enter the room first . 她让到一边，好让他第一个进入房间。 I'll write it down lest I should forget it. 我将它记下以免遗忘。 Take an umbrella with you in case it should rain . 带上雨伞，以防万一下雨。 1. I ______ have worried before I came to the new school, for my classmates here are very friendly to me. A. mightn’t B. mustn’t C. needn’t D. couldn’t 2. You _____be careful with the camera. It costs! A .must B. may C. can D. will 3. You _____feel all the training a waste of time, but I’m a hundred percent sure later you’ll be grateful you did it. A. should B. need C. shall D. may 4. —Sorry, Mum! I failed the job interview again. —Oh, it's too bad. You have made full preparations. A. must B. can C. would D. should 5. It is lucky we booked a room, or we ______nowhere to stay now. 1. C 【解析】试题分析：句意：我来新学校之前本没有必要担心，因为在这里我的同学对我非常友好。needn’t have done本没有必要做某事，表示实际上已经做了某事。根据句意可知选C。 2.A 【解析】试题分析：考查情态动词。根据下文的it costs可知，照相机很昂贵，故选择A，意为：你一定要非常小心对待照相机，它很昂贵。 3. D 【解析】试题分析：句意：你可能觉得所有的训练都是浪费时间，但是我有100%的把握你以后会感激它的。should应该；need需要；shall将会；may（不确定）可能。所以选D。 5. C 【解析】试题分析：句意：我们很幸运地订到了房间，否则的话，我们现在就会无处可去了。or引导含蓄虚拟条件句，or后面是主句，相当于if we hadn’t booked a room, we would have nowhere to stay now.，根据“now”可知，是对现在进行虚拟，因此用would+动词原形，故选C。 
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