内容正文:
九年级英语上册
Unit 5重点知识
一、单元短语
hundreds of 许多;数百
all over the world 全世界
be supposed to do sth.应当 / 理应做某事
produce /production 生产;制作
speed up (使)加速
later on 后来;其后
result in /lead to 导致;造成
be made of 由…… 制成(能看出原材料)
be made from 由…… 制成(看不出原材料)
be used for 被用来做……
take advantage of 利用
put sth to good use 充分利用某物
in general 总的来说
divide…into… 把…… 分成
hand in 上交;提交
work out 研发出;算出
high-speed train 高速列车
electronic payment 电子支付
be responsible for 对…… 负责;引发
try out 试用;测试
mini微型的
liquid /solid 液体 / 固体
in ancient times 在古代
the Warring States Period 战国时期
the Silk Road 丝绸之路
二、重点句型
Paper was invented in ancient China and it changed the whole world.
纸发明于古代中国,它改变了整个世界。
It is convenient for people to use laptops and digital cameras every day.
笔记本电脑和数码相机让人们的日常生活十分便利。
This machine is used to cut plastic and make small wares.
这台机器被用来切割塑料,制作小型器皿。
Later on, papermaking spread to Western countries and speeded up cultural communication.
后来,造纸术传到西方国家,加速了文化交流。
Many useful inventions result from people’s creative ideas.
许多实用的发明都源于人们富有创意的想法。
We are supposed to put new technology to good use instead of wasting it.
我们应当充分利用新技术,而不是浪费它。
It takes lots of time to produce handmade bronze works.
手工青铜制品的制作需要耗费大量时间。
High-speed trains are seen as one of China’s greatest modern inventions.
高铁被视作中国最伟大的现代发明之一。
三、重点语法
被动语态
1.被动语态含义
主语是动作的承受者,强调动作对象,不强调动作发出者;动作执行者用 by 引出。
2.三大必考结构
(1)一般现在时被动(描述物品日常用途)
结构:am /is/are + 动词过去分词
肯定:Laptops are widely used by students.
笔记本电脑被学生广泛使用。
否定:This plastic material is not used to make cups.
这种塑料不被用来制作杯子。
疑问:Is the machine controlled by a button?
这台机器由按钮操控吗?
(2)一般过去时被动
结构:was /were + 动词过去分词
Paper was invented by Cai Lun thousands of years ago.
纸是数千年前由蔡伦发明的。
These bronze wares were made in the Warring States Period.
这些青铜器制造于战国时期。
(3)情态动词被动语态
结构:情态动词 (can/may/must/should) + be + 过去分词
All waste materials should be put to good use.
所有废料都应当被充分利用。
This new tool can be carried in your bag easily.
这个新工具可以轻松装进口袋携带。
3.主动变被动步骤
主动宾语移到句首作被动主语
谓语改为 be + 过去分词(时态随原句)
主动主语前加 by,放句末(可省略)
主动:People produce paper from wood.
被动:Paper is produced from wood (by people).
4.固定句型 It’s said that… 据说……
It’s said that the first e-payment tool was created in China.
据说第一款电子支付工具诞生于中国。
四、中考作文
单元主题:我最喜爱的发明
【书面表达】
假定你是李华,学校英语报 “My Favorite Invention” 栏目征稿,请你投稿,介绍你最喜欢的一项发明 —— 高铁。
要点:
发明背景:中国自主研发,是伟大现代发明;
优势:速度快、安全、舒适,方便人们出行;
带来的改变:拉近城市距离,促进各地交流;
你的感悟:创新改变生活,我们要勇于创造。
要求:
词数 80–100 词;说明文,三段式;
尽量使用本单元单词、被动语态;
语句通顺,无真实地名、校名。
【范文】
My Favorite Invention
Among all inventions, high-speed train is my favorite great invention.It isone of the greatest inventions made in China.
It was developed by Chinese scientists years ago.Now it is used all over the country.It runs fast, safely and comfortably.People’s trips are made much easier by high-speed trains.Cities are connected closely, and cultural communication is speeded up a lot.
I think creative ideas can change our life.We are supposed to keep thinking and create more useful inventions in the future.
【中文翻译】
我最喜欢的发明
在所有发明里,高铁是我最喜爱的伟大发明,它是中国自主创造的伟大成果之一。
多年前,中国科学家研发出了高铁。如今全国都在使用它。它行驶快速、安全又舒适,高铁极大便利了人们的出行,拉近了城市之间的距离,也大幅加速了各地文化交流。
我认为创意可以改变生活。我们应当勤于思考,在未来创造出更多实用的发明。
【作文万能加分句】
1.It was invented hundreds of years ago and it’s still widely used today.
它数百年前被发明,至今仍被广泛使用。
2.This invention is used by people all over the world and brings great convenience.
这项发明被全球人们使用,带来了极大便利。
3.Later on, this skill spread to other countries and speeded up the development of culture.
后来这项技艺传到各国,加速了文化发展。
4.We are supposed to put new inventions to good use to make our life better.
我们应当充分利用新发明,让生活变得更美好。
5.It’s believed that creative ideas lead to great inventions that change the world.
人们相信,创意会催生改变世界的伟大发明。
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