英语复习知识点概要more than和necessary
摘要: 英语复习知识点概要morethan和necessarymoreandmore…越来越……Ourschoolisbecomingmoreandmorebeautiful.我们的校园变得越来越美......
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英语复习知识点概要more than和necessary more and more… 越来越…… Our school is becoming more and more beautiful.我们的校园变得越来越美丽了。 more or less 或多或少；大体上；大约。 ①—How far is your family away from here?你家离这里多远？ —Ten kilometres ,more or less.大约10公里。 ②The work is more or less finished. 这项工作大体上完成了。 no longer 不再。通常置于行为动词之前，动词be之后，偶尔也置于全句的末尾。 ①He no longer lives here.他不住这里了。 ②Don’t worry about her. After all she is no longer a child .别为她担心。毕竟她不再是个小孩子了。 ③I shall wait no longer.我不等了。 新概念英语网课 新概念英语听力 新概念英语音频 more than 该词组意为“不仅仅是”，“不只是”。 如：Flag is more than a piece of cloth. It stands for a state. More than 与one 连用，构成词组more than one 后接单数的名词和动词。如： More than one person is going to lose his job. must + have + 过去分词 表示推测过去某动作“一定发生了”。如： —They quarrelled quite often and whenever they quarrelled they threw glasscup at each other. —They must have broken a lot of glasses. necessary necessary主要用于两种句型：①It’s necessary for sb. to do sth.某人有必要做某事②It’s necessary that…有必要……。注意：that从句中谓语用should + 动词原型，should 可省略。另外：不能使用sb. is necessary to do 结构，因为通常是“某事或做某事有必要”，而非人有必要。误：He is necessary to return home this afternoon. 正：It’s necessary for him to return home this afternoon. [应用]汉译英 ①他有必要改进自己的学习方法。 ②有必要的话，我们可以多雇几个人收庄稼。 Key: ①It’s necessary for him to improve his method of study:/It’s necessary that the should improve his method of study。 ②If necessary,we’ll employ more men for the harvest. no longer 常可相当于not…any longer. not 用来否定谓语, any longer 置于句末。上面的句子可分别改作: ①He don’t live here any longer. ②Don’t worry about her. After all she isn’t a child any longer. ③I shall not wait any longer. 注意：no more（相当于not…any more）也是“不再”的意思。no longer是把现在的情况和过去对比，时态以现在时为多，有时也用过去时或将来时；no more 指今后如何，通常用将来时态。 ①I can no longer stand it.我再也受不了。 ②I will go there no more.我再也不到那地方去了。 美国人有时用起来比较随便。 He is no more/no longer ill.他的病好了。 另外：涉及数量或程度时要用no more; 谈到时间表示once but not now（有一度、曾经那样，但现在不了时），要用no longer. ①There is no more bread.没有面包了。 ②I no longer support the Conservative Party.我不再支持保守党了。（曾经支持过） no more than:only仅仅；只有。具有感情色彩，强调“少”。与no less than 相对。 Not more than:less than;at most不到；至多。说明客观事实。与not less than相对。 ①He has no more than 20 yuan.他只有20元钱。（强调钱“少”） He has not more than 20 yuan.他有不到20元钱。（说明客观事实） ②No less than 50 people attended the meeting.参加会议的人不少于50多个。（强调“多”） Not less than 50 people attended the meeting.参加会议的有50多人。（说明客观事实） 注意：no用于比较级之前总含有感情色彩；not用来否定比较级则只说明客观事实。 ①you are no taller than I.你并不比我高。（我们两人都矮） you are not taller than I.你不如我高。 ②This question is no more diffcult than that one.这个问题并水比那个（容易的）问题难。 This question is not more diffcult than that one.这个问题不如那个问题难。 
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