unit-7-Will-people-have-robots知识点总结(推荐文档)
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Unit 7 Will people have robots?
语法:一般将来时
一.重点短语
1. fewer people 更少的人
2.study on computers通过电脑学习
3. a piece of paper 在一张纸
4. live to be 活到…
5. in ten years 十年后(用于一般将来时)
6. live alone独居
7. keep pets 养宠8.be able to 能够
9.from now on 从现在起10. in the future 将来
11.over and over again 一遍又一遍12.look for 寻找,强调动作的过程
13. hundreds of+复数数以百计的14.play a part in doing sth 参与做某事
15.on the earth 在地球上16.agree with sb同意某人/agree to do sth 同意做某事
17.disagree with sb 不同意某人/disagree to do sth 不同意做某事
18.be in great danger 处于极大的危险之中19.during the holiday 在假期中
二.重点句子
--What will the future be like? Cities will be more polluted. And there will be fewer trees.
--W ill people use money in 100 years? No, they won’t .Everything will be free.
--Will there be world peace? Yes, I hope so.
--Kids will stay at home on computers. They won’t go to school.
There will be fewer trees and the environment will be in great danger.
Everyone should play a part in saving the earth.
三.重点解析
be going to+动词原形
①表示打算、准备做的事。
例如:
How are you going to spend your holidays? 假期你准备怎样过?
②表示即将发生或肯定要发生的事。
例如:
Look! The sky is getting dark, It is going to rain soon.
③“will”句型与“be going to”句型区别。
前者表示纯粹将来,后者表示打算、计划、准备做的事情,更强调主语的主观意愿。
例如:
a. tomorrow will be Saturday.
b. we are going to visit the Great Wall this summer vacation.
more, less, fewer的用法区别:
more为many, much的比较级,意为“更多”,可修饰可数与不可数名词。
less是little的比较级,意为“更好,较少”,修饰不可数名词。
fewer是few的比较级,意为“更少”,修饰可数名词复数
more (many) trees / (much) pollution
fewer (few) trees / less (little) pollution
【注意】few, little表示否定“几乎没有”。
a few, a little表示肯定“一点,几个”。
I have a few friends.我有几个朋友。
I have few friends.我几乎没有朋友。
There is a little water in the glass.杯子里有一点点水。
There is little water in the glass.杯子里几乎没有水。
◆alone adj.(只作表语)adv. 独自;单独=by oneself
He was alone in the house. 他一个人在屋里。
=He is at home by himself.
I went to the movies alone 我独自去看电影了。
=I went to the movie by myself.
【注】alone 表示“单独的,独自一人的”。
做形容词时,只能在be动词/系动词之后做表语.
◆keep: v. 保持;维持;喂养
1). keep + sb. / sth. +形容词使某人/某物…
The job kept them busy for a year. 这项工作让他们忙碌了一年。
2). keep +形容词保持…
The man ran up and down to keep warm. 这个人来来回回地跑着取暖。
3). keep + sb. / sth. doing 让某人/某物继续做某事
She kept u s waiting for her at the station for an hour.
她让我们在车站等了一个小时。
4). keep + doing 继续做,坚持做
He kept running after her, trying to catch her. 他不停地在追赶她,试图抓到她。
◆in 与after的区别
in是指以现在时间为起点的“在一段时间以后”,也可以表示“在将来多少时间之内”,句子中的谓语动词要用一般将来时态;
after常指以过去时间为起点的“一段时间之后”,所以它与过去时态连用。
当after指某个特定的未来时刻或日期之后,或指以将来某一时间为起点的若干时间之后时,它可以与将来时态连用。
例句:I'll be back in half an hour. 我半小时后就回来.
本句中的in作"以后"解,不能用after代替。
after和in都可以表示"以后"的意思,其区别是:
1)after以过去为起点,表示过去一段时间以后,常用于过去时态的句子。
例如:
They started working after lunch. 他们是午餐后开始工作的。
The film was shown after the meeting. 电影是会议结束以后放的。
2)in以现在为起点,表示将来一段时间以后,常用于将来时态的句子。
如:
They will start working in half an hour. 他们将在半小时后开始工作。
The film will be shown in 2 or 3 days. 这部电影将在两三天后上映。
3)在某个特定的时间点以后,after也可用于将来时态的句子。
例如:
They will start working after 10 am. 他们将在上午10点以后开始工作。
The film will be shown after 5 o'clock. 这部电影将于4点以后上映。
4) “after+一段时间”或“一段时间+later”表示“(在过去某个时间看来)一段时间之后”。
He went home after two days. 他两天后回家了。
Three years later,she had a baby. 三年后,她生了一个婴儿。
◆Seem的用法:
1)seem to do似乎做某事…He seems to know the story.他似乎知道这个故事。
2)It seems that看来…It seems that he knows everything.好像他知道一切似的。
◆hundred 的用法数字+hundred 几百/ hundreds of + 名词复数成百上千的one hundred students / three hundred books five hundred trees
hundreds of students/books /trees
◆Such作形容词,意思是“如此的”“这样的”,修饰各种名词。
Such这样的。
如It is such bad weather.天气如此恶劣。
Such常和表示结果的that从句搭配,表示“如此….以至于…”如
It was such a hot day that we all had to stay at home.
Such…that…和so…that…都可用来引出一个结果状语从句。
【注意】such 修饰的是名词,so 则修饰的是形容词。
Tom is such a good boy that people in the village like him.
The exam was so difficult that many students failed to pass it.
◆There be与have的区别:
1)含义不同。
There be表示的是“某地(时)有某人(物)”,强调“存在关系”。
2)have则表示“某人(物)所有”,强调“所属关系”。
There are 5 books on the desk.
I have 5 books on the desk.。