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人教版八上Unit 7 Will people have robots 单元知识梳理
【Useful expressions】
1.on paper 在纸上 2.on computers 在电脑上 3.air pollution 空气污染 4.in the future 在将来 5.on the earth 在世界上 6.play a part in sth. 在某方面出力/做贡献 7.world peace 世界和平 8.in the sky 在天空中 9.space station太空站 10.live to be...years old活到……岁 11.free time空闲时间 12.in danger 在危险中 13.over and over again多次;反复地 14.hundreds of 成百上千的 15.the same…as与…一样 16.get bored 无聊 17.look for 寻找 18.wake up 醒来/唤醒 19.look like 看起来像 20.fall down倒下/落下 21.fresh water淡水 22.move to搬(家);搬迁 23.during the holiday 在假期期间 24.disagree with 不同意；反对 25.be able to 有能力做某事
【Target sentences】
1.— Do you think there will be robots in people’s homes — Yes, there will. I think every home will have a robot. 2. — Will people use money in 100 years — No, they won’t. Everything will be free. 3.—What will the future be like —Cities will be more polluted. And there will be fewer trees. 4.—Will there be world peace —Yes, I hope so. 5.—Kids will study at home on computers. —They won’t go to school. 6.—Everyone should play a part in saving the earth. 7.—I will live on a space station. 8.—There will be fewer trees. 9.—But many scientists disagree with Mr. White. 10.—However, they agree it may take hundreds of years.
【Language points】
1. Books will only be on computers, not on paper.
paper n. 纸；纸张 paper在此处作不可数名词。表示“一张纸”要用 a piece/sheet of paper, 多于一张纸要用“基数词（大于1）+pieces/sheets of paper”表示。 With a few cuts, she changes a piece of paper into a beautiful work of art. There are two pieces of paper on the desk. 【拓展】paper作可数名词，意为“报纸；论文；试卷”等。
2. Will people use money in 100 years
in + 时间段 在……之后 “in + 时间段”通常用于一般将来时，对其提问要用how soon(多久)。 — How soon will he come back — In 20 minutes. He will come here in two hours. After about three months, he gave up smoking. He will arrive after four o’clock.
3. Everyone should play a part in saving the earth.
（1）play a part 参与；发挥作用 play a part常与介词in连用，后接名词、代词或动词-ing形式。part在此处作名词，意为“参加；参与”。 Why not play a part in their discussion Everyone can play an important part in protecting the environment. （2）earth n. 地球；世界 earth意为“地球；世界”， 是世界上独一无二的事物，因此其前一般要加定冠词the。 The earth goes around the sun. What on earth is it Without trees, many animals could not live on the earth.
4.Today there are already robots working in factories.
（1）There be sb./sth. doing sth. 有某人/某物正在做某事 There is a girl singing in the next room. There are two cats sleeping in the sun. （2）already adv. 已经；早已 【易混辨析】already与yet already：“已经”，一般用于肯定句中。用在疑问句中表示惊奇、意外。 The concert has already been on for 15 minutes. Is it 12 o’clock already yet：“已经；还”，多用于疑问句和否定句的句末。在疑问句中意为“已经”，在否定句中意为“还”。 Have you seen this film yet He hasn’t arrived yet.
5.However, some scientists believe that although we can…
believe v. 相信；认为有可能 believe在此处作及物动词，一般不用于进行时态。其后常跟名词，代词或从句作宾语。 Believe it or not, your brain never stops working. I believe that an apple a day keeps the doctor away.
6.. … that robots will never be able to wake up and know where they are.
wake up 醒来；叫醒 （1）wake up在此处用作不及物动词短语，意为“醒来”。 They wake up every morning to work for their families and their future. （2）wake up还可作及物动词短语，此时为“动词+副词”型短语，后接名词作宾语时，名词放在up前或后均可；后接代词作宾语时，代词只能放在wake与up之间。 Don’t wake up your sister, Ben. =Don’t wake your sister up, Ben. It’s 7 o’clock. It’s time to wake him up.
7.①But many scientists disagree with Mr. White.
②However, they agree it may take hundreds of years.
disagree v. 不同意；有分歧 agree v. 同意；赞成；应允 disagree与agree互为反义词，其用法相似，以agree 为例： As for me, I agree with the latter（后者）. We agreed to their arrangements. We agree to leave at once. I’m afraid I can’t agree on your opinion. Most people agree that the novel is a good one.
8.However, they agree it may take hundreds of years.
hundreds of 许多；大量 【易混辨析】hundred与hundreds of hundred： 表示具体数量，意为“百”。其前有a、several及具体数字时，hundred后不加-s，也不和of连用。 The room can hold two hundred people. hundreds of： 表示笼统的数量，意为“许多；大量”。不可与具体数字连用。 He has hundreds of books. 模糊数字“两有”(有-s有of ), 具体数字“两无”(无-s无of )。
9.They think that robots will even be able to talk like humans in 25 to 50 years.
(1) even位置比较灵活，常置于所修饰的词前，用来加强语气。 It’s cold there even in summer. Even Tom, a little boy, knows it. (2) even可放在形容词、副词的比较级前，修饰比较 级，表示程度。 The computer could play chess even better than humans.
10.If buildings fall down with people inside, these snake robots can help look for people under the buildings.
fall down 突然倒下；跌倒；倒塌 (1) fall（过去式为fell）在此作动词。 Babies often fall down when they learn to walk. (2) fall还可作名词，其用法有:
11.If buildings fall down with people inside, these snake
robots can help look for people under the buildings.
look for 寻找
12.This was not possible 20 years ago, but computers and rockets also seemed impossible 100 years ago.
possible adj. 可能存在或发生的；可能的 impossible adj.不可能存在或发生的；不可能的 It can be possible for you to live a better life if you work harder. It’s impossible for us to finish the work in one day.
13.So I’ll probably just keep a bird.
（1）probably adv. 很可能；大概 probably常用于肯定句中，位于助动词、情态动词或系动词之后，实义动词之前。其形容词形式是probable，意为“可能的”。 It will probably rain tomorrow. I think it is probably true. It is probable that we will win. （2）keep v. 养；饲养 We keep a couple of chickens and ducks.
14.… but I think I’ll take a holiday in Hong Kong when possible.
take a holiday 度假 take a holiday相当于have a holiday。其中holiday作名词，意为“假期；假日”。 We want to take a holiday in Sanya. I’m going home for my holidays.
15.space station 太空站
辨析：space, room, place space指空间、太空时是不可数名词；指大片空地、开阔地时，可以作可数名词，也可以作不可数名词。 room指为某一目的所需的空间，侧重大小、尺寸等，是不可数名词。泛指一般意义的“空地”或“空间”。 place指某人或某物所占的特定的空间，是可数名词。其含义通常比较具体，且指座位时，与seat 同义。
【Grammar Focus】
1.一般将来时
一般将来时既可表示将来某个时间要发生的动作或存在的状态，也可表示将来经常或反复发生的动作。其基本结构主要有 “be going to+动词原形”和“will+动词原形”，本单元讲的是will型一般将来时。will本身没有人称和数的变化，常缩写为’ll。其否定形式为will not，常缩写为won’t。 一般将来时的基本结构 肯定句：主语+will+动词原形+其他 eg:People will have robots in their homes in the future. 否定句: 主语+won’t+动词原形+其他 eg:People won’t have robots in their homes in the future. 一般疑问句及其肯定、否定回答: Will+主语+动词原形+其他？ 肯定回答：Yes, 主语+will. 否定回答：No, 主语+won’t. eg:—Will people have robots in their homes in the future —Yes, they will./No, they won’t. 特殊疑问句:特殊疑问词（短语)+ will +主语 + 动词原形+其他？ eg:Why will people have robots in their homes in the future 3. 一般将来时的用法: “will+动词原形”常与表示将来的时间状语连用，如tomorrow、the day after tomorrow、next year、in the future等。 eg:The Dragon Boat Festival is coming in a few days. We will watch the boat races and eat zongzi on that day. 4. there be句型的一般将来时结构: (1)there be句型的一般将来时结构：there will be; 其否定形式是在will后直接加 not; 其一般疑问句形式是直接把will提到句首； 肯定回答为“ Yes, there will.”； 否定回答为:“No, there won’t.”。 (2)there be句型的一般将来时结构：there is/are going to be; 其否定形式是在is/are后直接加 not; 其一般疑问句形式是直接把is/are提到句首； 肯定回答为“ Yes, there is/are.”； 否定回答为:“No, there isn’t/aren’t”。 5.will和be going to的区别 be going to往往表示将要发生的动作或安排，特别是打算、计划、决定要做的事。 eg:She is going to lend us her book. 她打算把书借给我们。 一般将来时（will）常用来客观陈述将来某个时间要发生的动作或存在的状态（will作为情态动词常表意愿）。 eg:She will lend us her book. 她将会把书借给我们。

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