资源简介

(共25张PPT)
仁爱版九年级上册
Review Unit 4 Topic 3
Section C- D
.
Learning aims：
1.Master the key words， phrases and sentences.
2.Review the usage of “Attributive Clause”
3.Review the importance of Computers and tech-
nology and write a passage about it.
words & phrases
1
sentences & practice
2
3
目录
grammar
4
writing
单词、词组过关
夯实基础
Solid foundation
Words
1.doubt .n/v.怀疑 疑惑
2.tiny. adj.极小的，微小的
3.normally.adv.通常 正常情况下
4.cancle .v.取消 撤销 废止
5.besides .adv .而且 再说 prep.除...之外
6.properly .adv .正确地..恰当地
7.certain .adj .确定的 无疑的
8.warn. n/v .警告 告诫
9.housework .n.家务劳动 家务活
There is no doubt that...
/No doubt
normal adj.
except/but
proper adj.
for certain/for sure
warn sb of sth/
warn sb (not) to do sth
do the housework
phrases
1.in the 1950s 在二十世纪五十年代
2.in many areas of work and leisure在许多工作和休闲领域
3.be useful in 在某方面有用
4.control the speed and direction of a
spaceship 控制宇宙飞船的速度和方向
5.for example/for instance 例如
6.keep their hearts beating normally 保持他们的心跳正常跳动
7.be dangerous to 对...危险
8.place and cancel orders 下单和撤销订单
such as 表示
同类例举
keep sb doing sth/
keep (on)doing sth
in the+年代的复数
phrases
9.come into being 形成
10.personal computers 个人电脑
11.thanks to 幸亏，多亏
12.instead of doing sth 代替做某事
13.the whole world 整个世界
14.connect ...to... 把...和...连接起来
15.not everything 并非所有
16.be surprised at 对...和...感到吃惊
17.on one's own 独自，单独
18.think for oneself 为某人自己想
19.treat ...as... 把...当做...
person
thanks for 感谢...
instead单独使用
all the world
connect ...with...
not all/not everybody
be surprised to do sth
(all) by oneself
regard...as.../
consider...as.../
think of ...as...
句子熟记
课文回顾
The text reviews
sentences
1.There is no doubt that computers are very useful
in technology and business.毫无疑问电脑在技术和
贸易业都非常有用。
2.For example , tiny computers which are inside
patients’ bodies can keep their hearts beating nor-
mally.例如，病人体内植入微电脑能帮助病人的心脏
正常搏动。
3.Thanks to the Internet,people can do shopping and
do business at home instead of writing letters on pa-
pers.多亏了互联网，人们能够在家里购物和做生意，代替
About computers and robots
.
了在纸上写信。
4.Since the Internet came into being, people's lives at
home have been changed.自从互联网形成以来，人们
在家里的生活发生了巨大变化。
5.For instance, if we work on computers too long, we
may get headaches or sore eyes.比如：如果我们使用
的电脑工作的时间太长，我们就会头昏眼花。
6.No one knows for certain, but most people think that
robots will be part of our lives.没有人清楚，但是大部
分人都认为机器人会成为我们生活的一部分。
7.In a few years, perhaps robots will think
on their own, just as people use their brains
and act for themselves.多年以后，也许机器人
会有自己的思想，就像人们使用自己的大脑和自
己行动一样。
8.One scientist warns that if robots start to
think for themselves, they will no longer
want to be our servants, but our masters.
曾有科学家警告，如果机器人开始自我思考，
他们将不再愿意成为我们的仆人，而是想成为
我们的主人。
巩固课文
练中求进
Seek progress in practice
Fill in the blanks.
There’s _____ _____(无疑地) that computers are very useful in technology and business.
________(微型的) novels are very popular with children.
The flight was________(取消)because there’ll be a heavy fog above the airport.
Spaceships can travel to other planets.
________(除……以外), humans have built space stations.
5. No one knows _______ _______(确切地), but most people think that robots will be part of our lives.
6. Perhaps robots will think ______ _____ _____(独自，单独)in a few years.
7. _______________ (整个世界）is connected.
no doubt
Tiny
canceled
Besides
for certain
on their own
Exercise(1)
The whole world
No one knows for ________ what our future will be like, but most people think that robots will be part of our _____.
So far, robots haven’t _______ us any problems. They work for us like _______ all the time. They help us do __________ and difficult work.
People are ________ at the rapid development of robots. In a few years, perhaps robots will think on _______ own, just as people use their brains and act for themselves. However, once robots can think for themselves, problems may appear. One scientist _____ that if robots start to think for themselves, they will no _______want to be our servants, but our masters. They _______ treat us as we now treat our pets.
long, they, surprise, cause, certainly, live, servant, danger, warn, may
certain
lives
caused
servants
dangerous
surprised
their
warns
longer
might
Exercise(2)
定语从句
语法专练
Grammar training
Grammar
Attributive Clause(Ⅰ)
He is our national hero who/that traveled around the earth in Shenzhou V for 21 hours in 2003.
China is the third nation that sent a person into space.
More and more people have personal computers that /which are used to play games and watch movies.
概念：
1.在句子中修饰名词或代词，定语从句在句
中充当定语。
2.定语从句必须有先行词，并尽量靠近先行
词。
3.在定语从句中，关系词在从句中充当成
分。
关系代词
指人: who(主格，宾格) whom（宾格）
指物: which(主格，宾格)
指人或物: that
Review
Attributive Clause
定语从句专练
学以致用
Learn by using
Exercises
1. The books _____ I borrowed from the library was newly published.
2. The ID card _____ I lost last week was found in a supermarket.
3. The newspapers ____ we have collected will be recycled.
4. Most of the cars ____ were stolen have not been found yet.
5. The students ____ are visiting the natural museum are very interested in the dinosaurs.
that
which
which
which
who
写作训练
拓展运用
Expand application
writing
Jack是一名九年级的学生，最近因为上
网课，从早到晚使用电脑，迷上了网络游戏，
经常玩到深夜，睡眠不足，不能认真听课，
导致成绩下降。他的妈妈很生气，不再让他
使用电脑。假如你是他的朋友Tina，请你写
一封信给他，建议他要合理使用电脑，如查
阅资料，记单词等。同时，考试在即，要理
解父母、老师的心情，要主动去沟通，得到
他们的原谅和帮助。
Dear Jack，
I am sorry to hear that you quarreled
with your parents about playing computer
games. You spent so much time playing
games that you forgot when to sleep and
you felt too sleepy and tired to listen to the
teachers in class the next day. Because of
these, you became poor in your study. Your
mother got angry with you. You felt bad about
this.
Firstly, I think you should stop playing computer
games.You can use your computer to search for
information, and look up new words. It is a useful
tool for your study.Secondly, you need to comm-
unicate with your parents and teachers, and let
them know your problems. They will help you. At
the same time, they will forgive you for your mist-
akes.
I hope my suggestions are of great value to you.
Yours，
Tina
Summary
Summary
words and phrases
sentences
attributive
clause
writing
Thank you !

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