Unit 5 lesson 30 Science Affects Us 课件(共19张PPT)

(共19张PPT)
Unit 5 Look into Science
Lesson 30 Science Affects Us
affect [ fekt]
v. 影响
Have you ever done any interesting experiments
Can you describe one of them
What would life be like without computers or mobile phones
Think About
Hi Wang Mei,
How are you Everyone here is fine.
Do you want to surprise your friends Brian, Danny and I did an experiment in science class this week. I suggest you try it, too! First, get a jar full of water and a piece of cardboard. Cover the jar with the cardboard and turn the jar over. Next, take your hand off. Can you guess what happens The cardboard holds the water in the jar! The air pressure pushing up on the cardboard is higher than that of the water pushing down from inside the jar. The higher air pressure outside the jar holds the cardboard in place.
Science is interesting. Don't you think so
Jenny
Dear Jenny,
I'm very well. Thanks! The experiment you did sounds interesting.
Yes, science is interesting, and it affects our everyday lives. Our lives would surely be very different without scientific developments. I always wonder what life would be like without computers or mobile phones. Scientific discoveries are making our lives better and better.
This week we had some science lessons, too. I enjoyed learning about DNA. It's really one of the most amazing things on the earth! Scientists are doing so many new things with DNA. I think it will change the world. It will be interesting to see what happens.
Wang Mei
知识点讲解
1. Do you want to surprise your friends
surprise
v. 使（人）感到惊讶
surprise sb. 使某人惊讶
他的进步使我感到惊讶。
His progress surprised me.
surprise
n. 惊讶；惊奇
in surprise 惊讶地；吃惊地
to one’s surprise 另某人惊讶地是
surprised
adj. 感到惊讶的
surprising
adj. 令人惊讶的
be surprised at sth.对某事感到惊讶
2. I suggest you try it, too!
suggest
v. 建议
suggest +(that) sb.(should) do sth.
建议某人应该做某事
他建议我们出去散步。
He suggest (that) we (should) go for a walk.
suggest doing sth. 建议做某事
他建议步行去学校
He suggest walking to school.
suggestion
n. 建议
可数名词
advice
n. 建议
不可数名词
3. Cover the jar with the cardboard and turn the jar over.
turn sth. over
使...翻转
turn sth. over in one’s mind
反复思考某事
turn 短语：
turn on
turn off
打开（电器）
关闭（电器）
turn up
turn down
调大（声音）
调小（声音）
in turn
轮流
4. The air pressure pushing up on the cardboard is higher than that of the water pushing down from inside the jar.
push up
向上推
push down
向下推
5. The higher air pressure outside the jar holds the cardboard in place.
in place
原地;在适当的位置
6. Our lives would surely be very different without scientific developments.
development [d vel pm nt]
n. 发展
develop
v. 发展
7. Scientific discoveries are making our lives better and better.
discovery [d sk v ri]
n. 发现;发觉
discover
v. 发现
比较级+and+比较级 越来约...
8. I always wonder what life would be like without computers or mobile phones.
mobile phone
n. 移动电话
9. The experiment you did sounds interesting.
定语从句
定义
在主从复合句中作定语，修饰主句中的某一名词或代词的从句被称为定语从句
被定语从句修饰的词叫先行词，通常谓语定语从句前
引导定语从句的词叫关系代词
The man who wears a blue sweater is my father.
先行词
关系代词
定语从句
由关系代词引导的定语从句
关系代词 作用 先行词 例句
that,who,whom (whom只作宾语） 主语、宾语 人 Is he the student who/that wants to see you
that,which 主语、宾语 物 The package (which/that) you are carring is about to unwrapped.
whose 定语 人 He is a man whose opinion I respect.
定语 物 He lives in a room whose window faces south.
填一填
1. Do you know the boy is standing under the tree
2.Yuan Longping is a hero is known for developing hybrid rice.
3.I’ll never forget the place we visited together last year.
4.He has a friend father is a doctor.
that/who
that/who
that/which
whose
练一练
（ ）1.Jane suggests _____ homework first. I think it is a good idea.
A. to do B. doing C. do D. did
（ ）2.—How was your life in England
—Quite different from here. _____, people there drink tea with milk.
A. In my opinion. B. To my surprise C. At the beginning D. As a result
（ ）3.With the _____ of science, human life has changed greatly.
A. development B. choice C. experiment D. success
B
B
A
( )4.Linda is _____ of the three girls, but she is the tallest.
A. young B. the oldest C. old D. the youngest
( )5.I did an interesting experiment and wanted_______ my teacher.
A.to surprise at B.to surprise
C.to be surprised at D.surprise
( )6.They often________ experiments in class last month.
A.do B.did C.does D.to do
D
B
B
Bye-bye