Unit 4 Life on Mars Revision课件23张

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名称 Unit 4 Life on Mars Revision课件23张
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科目 英语
更新时间 2022-04-18 17:46:55

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(共23张PPT)
九下 Unit 4
Revision 2
Life on Mars
Daniel is watching a TV programme about life on Mars. Let’s follow him to see what it is showing.
Life on Mars
The scientist is introducing something about life on Mars.
Our Earth is becoming more and more crowded and polluted because of the rapid increase in population.
It is hoped that people could start all over again and build a better world on Mars.
Compared with life on the Earth, life on Mars would be better in some ways.
compare v. 比较,对照。
compare … with … 把……与……比较(表示同类相比)
compare … to … 把……比作……(表示异类相比,比喻)
(1)请比较这幅图和那幅图并找出它们的不同之处。
Please and find out the difference between them.
(2)人们常把女孩比作花朵。
People often .
compare this picture with that one
compare girls to flowers
compare with/to 用非谓语动词做状语时,用主动形式还是被动形式取决于句子的主语。
(3) 与他的房间相比,我的房间更小。
his room, my room is even smaller.
his room, I find my room is even smaller.
Compared with
Comparing
Life on Mars
Transport
With the development of technology, by the year 2100, the journey to Mars might only take about 20 minutes in spacecraft that travel at the speed of light!
Life on Mars
Gravity
The gravity on Mars is only about three-eights of that on the Earth. People would have to wear boots that are specially designed to prevent themselves from floating off into space.
Life on Mars
After listening to the introduction, Daniel has a question.
Is there a possibility that humans can live on Mars in the future
possible adj.
Some people think humans could (possible) live on Mars, because humans have explored space and had some achievements. However, others think there are still something unknown about Mars, so it is (possible) for humans to move to Mars. Scientists say that there is a (possible) of humans living on Mars in the future. They are still doing research on it.
possibly
impossible
possibility
impossible adj.
possibility n.
possibly adv.
A discussion about living on Mars
A survey carried out in Sunshine Town and different people have different ideas.
Advantages
It would be interesting and safe.
After all, humans have already been to the Moon.

Disadvantages
We don’t know if it is worth the risk.
We might get ill from living there.

Life on Mars
carry out 意为“展开,执行”,后面的宾语常表示的是“工作、活动、职责、命令”等名词。
carry on 继续;进行
The plan (carry out) in our school next week.
will be carried out
( )The king didn’t take any notice of the noise in the crowd and____ with the parade.
A. carry on B. carry out C. carried on D. carried out
C
No matter what difficulty you will meet with, carry out your plan.
不管你遇到什么困难,都要执行计划。
after all 毕竟
above all首先,尤其是
in all 总共,合计
After all 一般放于句首,用来提醒对方(听话的人)似乎忘记了一个重要的事实,或者忽略了某个重要的理由或论点。
After all, humans have already been to the Moon.
毕竟人类已经去过月球了。
risk n. 风险,危险
at the risk of 冒……的危险
risk v. 冒……的危险 risk doing sth. 冒险做某事
The fireman risked (lose) his life and saved the boy from the burning building.
医护人员们正冒着他们的生命危险救治患有新冠肺炎的病人。
The doctors and nurses are to save the patients who had COVID-19.
at the risk of their lives
losing
The scientist says: “Life on Mars would be interesting as well as challenging.”
Life on Mars
At the end of the TV programme
as well as 意为“既……又……;不仅……而且……”,用作连词,连接两个并列的同等成分。
当as well as 连接两个并列成分作主语时,句子的谓语动词应该与前面的名词或代词在人称和数上保持一致。
他不但会说英语而且会说法语。
He can speak French as well as English.
Mary as well as Jack (like) English.
My parents as well as my sister (like) eating fruit.
likes
在A as well as B结构中,语意的重点在A,翻译时要特别注意。
like
Life on Mars
After watching the TV programme
Daniel:
“There are two moons to visit, but most people may prefer to watch the amazing low-gravity basketball games instead.
If my parents and friends don’t want to move to Mars, me neither.”
prefer的用法
①prefer sth. to sth. 同某物比起来更喜欢某物
I prefer bananas to apples.
② prefer doing sth. to doing sth. 同做某事比起来更喜欢做某事
He prefers swimming to fishing.
③ prefer to do sth. 宁愿做某事
The girl prefers to stay at home at the weekends.
④ prefer to do sth. rather than do sth. 宁愿做某事而不愿做某事,相当于would rather do sth. than do sth.
The boy prefer to play outside on hot days rather than stay in the room.
=The boy would rather play outside on hot days than stay in the room.
Life on Mars
After watching the TV programme
Daniel:
“If my parents and friends don’t want to move to Mars, me neither.”
---Wow, I’ve never thought about travelling into space.
---Me neither.
Me neither 意为“我也不……”,表示上文提到的否定情况也适用于另一个人或物。 = .
Me too = So + be动词/助动词/情态动词+主语,“……也……”,表示上文提到的肯定情况也适用于另一个人或物。
(1)明天他不去参加Amy的生日聚会,我也不去。
He will not go to Amy’s birthday party tomorrow and .
neither/nor will I
(2)---I am fond of this film. 我喜欢这部电影。
--- . 我也喜欢。
Me too/ So am I
Neither/Nor have I
Barney: In my opinion , there is no life on Mars. You know, the environment there is not suitable for life
at all. How can people ________________ if there is no oxygen
Gary: I don't agree with you. Our planet is becoming worse because of the rapid increase in population.
_______________________________, spacecraft can travel ___________________. Some
people believe that humans could live on Mars _______________.
Barney: I won't agree with you until I see with my own eyes. I also know that it is hard for people to walk
properly ___________________ . I am afraid we will ___________________ if we play basketball
on the playground. What's more, the food will be in the form of pills. It will not be ____________
that on the Earth.
Gray: Don't be so worried. Life on Mars would be better in some ways, People would have more space.
They could also have more time to relax because robots would _________________. Students
wouldn't have to go to school. An interplanetary network would allow them to study at online
schools.
float off into the space With the development oftechnology because of low gravity do most of the work
live on Mars as tasty as by the year 2100 at the speed of light
With the development of technology
live on Mars
at the speed of light
by the year 2100
because of low gravity
float off into the space
as tasty as
do most of the work
Help Barney and Gary complete their conversation.
重点词组
1. sleeping bag 睡袋
2. by the year 2100 到2100年时
3. all over again 再;重新
4. at a/the speed of... 以...的速度 move at high speed 高速运行
5. in the form of... 以...的形式
6. the journey to Mars 到火星的旅行
7.float off into space 漂浮到太空中
8. in some ways 在某些方面 by the way 顺便问一下
9. connect to... 与...什么连接
10.circle around... 绕...运转
11.be similar to... 与...相似
12.carry out 开展;执行
13.move away from... 离开...
14.after all 毕竟
15.with the development of... 随着...的发展
16.the rapid increase in population 飞速增长的人口
17.large numbers of... =a large number of... 许多...
Complete the following sentences.
1. Some of the students are afraid of ______ (see) aliens there.
2. They are not sure whether it is much _____ (safe) to live there.
3. The questions she asked last week is still under _______ (discuss).
4. Reading in the sun is _______ (harm) to our eyes.
5. Don’t have the baby ____ (cry) all the time.
safer
discussion
harmful
cry
seeing
Translate the following sentences.
我们的班会以一个特别的讨论开始。
Our class meeting started with a special discussion.
2. 我们不应当让家长为我们做一切。
3. 地球上的形势和火星上的相当不同。
We shouldn’t have parents do everything for us.
The situation on the Earth is quite different from that on Mars.
Thanks for listening!