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辽宁省沈阳市第二十一中学高中英语 Module 2 No Drugs知识点讲解 外研版必修2

Module 2 No Drugs 知识点讲解
【词条 1】reduce 【点拨】reduce 作动词,意为"减少,缩减"。如: In order to promote the sale of their products, they reduced the prices by 30%. Measures must be taken to reduce pollution. The cost of the material has been reduced to 1,000 yuan this month. 【上层楼】 1. reduce 常用于以下结构: ①reduce ... by ..."把……降低/ 减少……"。如: We can do business if you can reduce the price by 2 percent. ②reduce ... to ... "把……降低到/ 减少到……"。如: The number of employees was reduced from 50 to 30. 2. reduction n."减少,缩小;减价,折扣"。如: I will buy the trousers if you give me a reduction. 【词条 2】likely 【点拨】likely 可作形容词,意为"有可能的;预料的;有希望的"。如: He is likely to come to see me. That they may break up is the most likely result. 【上层楼】 1. likely 也可作副词,意为"很可能;多半",常与 most 或 very 连用。如: They most likely have known the truth. Most likely he will disagree with you. 2. likely, possible, probable 用法辨析: 虽然这三个词均可作形容词表示"可能的",但其确切含义和具体用法不尽相同。 ①likely 与 probable 意思相近,有时可以互换,但 likely 常暗示从表面迹象来判 断。如: It’s not likely for them to finish the task within a week. ②possible 强调经过反复权衡后相信某事大概会发生 ,但也许实际发生可能性并不

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大。如: Is it possible for us to get from Beijing to Tianjin in half an hour? ③probable 表示有几分根据的推测,比 possible 可能性大。换句话说,probable 的 "有可能",是指有实际的依据或逻辑上合乎情理。一般不用表人的词作主语。如: It is possible that it will rain, but with such a blue sky it doesn’t seem probable. 【词条 3】connection 【点拨】connection 为名词,意为"联系 ;关系,连接"。如: There was no connection between the two events. It is more and more convenient for people to travel because of go od rail connections. 【上层楼】 1. connection 常用于以下结构: ①connection with sth."联系,关联"。如: What is his connection with the case? ②connection between A and B"(两种事实、观念等的)联系,关联"。如: There must be some connection between what he did today and the news you had told him yesterday. ③connection to sth."连接,接通"。如: Connection to the gas supply has not been finished. 2. connect v."连接;联结";connected adj."联结的,连贯的;有联系的,有关的 "。如: The new road connects the two towns. We didn’t connect the case with him at first. The two continents were once connected.

经典短语透视

【短语 1】in danger 【点拨】in danger 意为"在危险中"。如:
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The patient is in danger and the doctors are trying to save him. Some wild animals are in danger. 【上层楼】 1. 与 danger 相关的其他短语还有: ①in danger of"有……危险"。如: If the river is heavily polluted, fish in it will be in danger of dying out. ②out of danger"脱离危险"。如: The soldier was badly wounded and his life was in danger. To our delight, he is now out of danger. ③a danger to sb. / sth."对……危险的人或物"。 Smoking is a danger to health. 2. dangerous adj."危险的;对别人构成威胁的"。如: It is highly dangerous to walk in the jung le, which is full of danger. It is generally agreed that the tiger is a dangerous animal. 【短语 2】be addict ed to 【点拨】be addicted to 意为"沉溺于;有瘾的,入迷的"。如: What worries the parents is that their child is addicted to computer games. Once you smoke, you are easy to be addicted to it. 【上层楼】 1. be addicted to 中的 to 为介词,后接名词、代词、动名词等。如: Recently he is addicted to playing chess. 2. addiction n."沉溺;癖好";addict n."上瘾者;迷";addictive adj."使人 上瘾的;使人入迷的"。如: He is now fighting agains t his addiction to alcohol. The boy is really an addict to Zhou Runfa’s movies. I find jogging very addictive. 【短语 3】so as to 【点拨】so as to 意为"为了……;以便"。如: He spoke loudly so as to make himself heard. We must make good preparations so as not to fail in the following exam.
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【上层楼】in order to"为了;以便"。如: They started early in order to / so as to arrive before dark. 注意:so as to 不能用于句首;in order to 则可以。如: In order to finish the work in time, he worked day and night. He worked day and night in order to / so as to finish the work in time.

热点语法聚焦

◆●◆动词不定式作状语 动词不定式在句中作状语,主要用来修饰动词和形容词,间或也可用来修饰副词。在 句中,不定式可作目的状语、结果状语、原因状语、条件状语等。本期我们主要讲解不定式用 作目的状语和结果状语的情况。 一、动词不定式作目的状语 不定式作目的状语,意为"为了……,以便于……"。常用于:to do, in order to do, so as to do, so / such ... as to do 等结构中。如: The teacher explained the sentence clearly to be understood. He promised to make all efforts so as to help us .注意: 1. 不定式作目的状语时,其动作通常迟于谓语动词的动作。如: I said that to encourage him. 2. 作目的状语的不定式之前,常常加上 in order 或 so as,以突出或强调目的的含义。如: I am working hard in order to get a better result. 3. 如用于表示否定,in order 或 so as 不能省略,只能用 in order not to do 或 so as not to do 形式。如: I walked quietly so as not to disturb the baby. 4. 不定式作目的状语可转换为 so that / in order that 或 so ... that ...引导的目的状 语从句。如: He worked very hard to pass the exam. →He worked so hard that he could pass the exam. →He worked hard so that / in order that he could pass the exam. 二、动词不定式作结果状语
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不定式作结果状语时,总出现在被修饰动词之前,且常用于以下结构: 1. too ... to ...意为"太……以至于不……"。如: The box is too heavy for me to carry. 2. not + 形容词/副词+ enough to do 意为"不够……而不能……"。如: We are not old enough to vote and to be voted. 3. only to do 表示意料之外的事情发生。如: He went back home happily only to find his house had been broken into. 4. so / such ... as to 意为"如此……以至于……"。如: She is so proud as to look down upon others. 注意:too ... to ...中 too 后跟的是 pleased, glad, anxious, willing, ready 等形容词 时,不能表示否定的概念,而是意为"很、非常"。如: The mother was too anxious to see her son. The girl wa s too ready to cry.

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