仁爱科普版英语八年级上Unit 4 Our World Topic 2 Section A 课件（22张PPT无素材）

(共22张PPT)
Unit 4 Our World
Topic 2 Are you sure
there are UFOs
Section A
一、用所给词的适当形式填空。
1.Who is the _______(tall) of the two
2.Sally is _______ (lazy) girl in our class
3.This river is much ________(clear)than that one.
4.Which is ___________ (strong),the tiger, the bear or the elephant
5.The Changjiang River is __________(long) river in China.
taller
the laziest
clearer
the strongest
the longest
What’s this
It’s a _____.
robot
What did he do He was a ________.
scientist
When did scientists invent the first robot
A: What can robots do for us
B: They can …
save people in danger
repair machines
lift parts of trucks
carry heavy things
mend roads
catch fishes
拯救处于危险中的人
I am sure robots can take the place of humans to do hard work in some situations.
Are you sure
instead of
代替
情况
2.When did scientists invent the first robot
(when did the first robot appear )
Scientists invented the first robot in 1921.
1 .Where did Kangkang go last weekend
He went to the Science Center last week.
Key points
But before that, something like a
robot appeared.
类似某物的东西
e.g.
这吃起来有点象西瓜。
It tastes something like water melon.
“take the place of”= “instead of”
Robots can take the place of humans to do hard or boring work in some situations.
=
They can also do lots of dangerous work instead of humans.
=
Key points
They can also take the place of humans to
do lots of dangerous work.
Robots can do hard or boring work in some situations instead of humans.
sure 肯定的，确信的。
be sure of +名词(或that+句子)主语是人，主语感到有把握，确信。
他确信他会成功。
我肯定他会来。
2. be in danger 处于危险状态；
be in trouble处于麻烦状态；
be in difficulty处于困境状态；
in danger 在save people in danger 中是介词短
作后置短语。
He is sure of his success
I’m sure that he will come.
The advantages of robots:
1.
2.
3.
Robots can do some work faster and better than humans.
Robots can take the place of humans to do hard or boring work in some situations.
Robots can also do lots of dangerous work instead of humans.
Read 1a again and write down the advantages of robots.
2
Work alone
1
6
3
2
5
lift parts of trucks
4
Discuss the advantages and disadvantages of robots. Then fill out the form.
You can add your own opinions.
Group work
1. Robots will make humans lose their jobs.
2. Robots can do some work faster and
better than humans.
3. Robots can do many kinds of jobs.
4. Robots can do more difficult work than
humans.
5. Robots will make humans lazy.
6. Robots can do dangerous work.
7. Robots can work without pay.
Advantage Disadvantage
2. Robots can do some work faster and better than humans.
3. Robots can do many kinds of jobs.
4. Robots can do more difficult work than humans.
6. Robots can do dangerous work.
7. Robots can work without pay.
Robots will make humans
lose their jobs.
5. Robots will make humans
lazy.
Make a similar conversation after the example, using the information above.
A: Are you sure…
B: Yes, I’m sure. / No, I’m not sure.
A: Is it good or bad for us
B: …
A: Do you think you will have a robot in 20 years
B: Yes, I’m sure. / No, I’m not sure.
A: What will it do if you have one
B: It will …
Group work
“in + 一段时间”表示“……之后”，用于一般将来时。
Translate the sentences:
1.机器人能为我们做什么
2.你确定吗
Make sentence with the following phrases:
be sure of/about; be sure that; be sure to do sth.
Do some exercises.
What can robots do for us
Are you sure
1. There must be UFOs. We are sure of/about that.
2. We are sure that we can win the game next time.
3. We are sure to win the game next time.
“take the place of” VS “instead of”
Robots can take the place of humans to
do hard or boring work in some situations.
I’m sure robots can do some work faster and better than humans.
Are you sure
Yes, I’m sure. / Yes, quite sure.
No, I’m not sure.
Summary
Exercise
根据句意及首字母提示补全单词。
Edison was a great s________, and he invented more than one thousand things.
2. R_____ will do most work people can do in the future.
3. Miss Wang is ill, so I will take the
p_______ of her to give a lesson today.
cientist
obot
lace
4. My bike is broken. Could you help me
m_____ it
5. Two faces a______ in front of our
window last night.
end
ppear
B. 单项选择
Robots can ______ humans to do hard
and boring work in some situations.
A. instead B. instead of
C. take the place of D. take place of
2. The robots can save people ______.
A. in trouble B. at danger
C. in danger D. dangerous
3. We are sure ______ the game next time.
A. will win B. winning C. win D. to win
C
B
D
4. We should do something _____ just
talking about it.
A. instead B. instead of
C. take place D. take the place of
5. – Are you sure they will wait for us
– ______. There is little time left.
A. Yes, I’m sure. B. No, I’m not sure
C. Yes, quite sure D. Both A and C
B
B
6. I don’t like milk. Give me some apple
juice ______.
A. instead B. back
C. away D. take place of
7. The weather is getting worse and worse.
I’m afraid people will be _____ difficult
situation.
A. to B. in C. at D. from
A
B
8. Robots will make humans ______
their jobs and make people _____.
A. lose; lazy B. to lose;
C. losing; clever D. lost; cleverly
A