(共31张PPT)
UNIT 6
Survival
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Developing ideas
1. Students could learn some words and phrases.
2. Students could get the main usage of this passage---How much
do you know about Mars.
3. Students could write some a passage about this passage---How much do you know about Mars.
Learning Aims:
What is your understanding of this title?
Share you ideas with others
关于火星你了解多少?
How much do you
know about Mars
火星(英语:Mars;拉丁语:Martis;天文符号:♂),是距离太阳第四近的行星,也是太阳系中仅次于水星的第二小的行星,为太阳系里四颗类地行星之一。
欧洲古称火星为“马尔斯 [43] ”,古罗马神话中的“战神”,也被称为“红色星球”。古汉语中则因为它荧荧如火,位置和亮度时常变动而称之为荧惑。
其橘红色外表是因为地表被赤铁矿(氧化铁)覆盖,火星的直径约为地球的一半,自转轴倾角和自转周期则与地球相近,
但公转周期是地球的两倍。火星亮
度最高可达-2.9等,但在大部分时
间里比木星暗。
火星大气以二氧化碳为主(95.3%),既稀薄又寒冷,遍布撞击坑、峡谷、沙丘和砾石,没有稳定的液态水。南半球是古老、充满撞击坑的高地,北半球则是较年轻的低地平原。火星上最大的火山—奥林帕斯山和最大的峡谷—水手号峡谷。火星有两个天然卫星:
火卫一和火卫二,形状不规则,可能是捕获的
小行星。根据观测的证据,在火星观察到类似
地下水涌出的现象,南极冰冠有部分退缩,雷
达数据显示两极和中纬度地表下存在大量的水冰。
火星有美国宇航局和欧洲发射的四艘在轨环绕探测器,分别是奥德赛号、火星快车号、火星全球勘测者和MAVEN火星探测器。表面还有多个美国的火星车,如好奇号、洞察号以及结束任务的火星探路者号、凤凰号、勇气号和机遇号等等。
2021年5月15日,科研团队根据
“祝融号”火星车发回遥测信号
确认,“天问一号”着陆巡视器
成功着陆于预选着陆区,我国首
次火星探测任务取得圆满成功.
Before learning, please try to make a prediction of this passage.
How much
do you know about Mars
Brainstorming:Before reading this passage, what ideas come to your mind
1. no lives
2. cold
3. ...
Try to write your opinions
in your notebook!
How much
do you know about Mars?
Try to finish it!
1 Mars is the ______ smallest planet in the solar system.
a second b third c fourth
2 The surface of Mars is covered in ______.
a rocks b water c grass
Try to finish it!
3 The average recorded temperature on Mars is ______.
a 40°C b 2°C c 63°C
4 One day on Mars is about ______ long.
a 18 hours
b 24 hours
c 37 hours
What is risks to life on Earth in this paragraph
nuclear missiles: environmental problems
1 In the 1960s and 1970s, the greatest fear was
that the human race, and possibly all advanced
life forms on the planet, could be wiped out by
nuclear missiles, just at the push of a button. Today,
however, environmental problems have taken
over as the greatest risk to life on Earth. Scientists
are thinking of ways to lower this risk, such as
replacing coal and oil with forms of renewable
energy. But they are also preparing for the worst:
what can we do if the terrifying scenes in films such
as The Day After Tomorrow happen in real life
What is our Plan B for Earth
Take notes quickly!
重点词汇
human race 人类
life forms 生物 ; 活物 ;
wiped out 十分疲劳 ; 筋疲力尽
environmental problems 环境问题 ; 环保问题
on Earth 在地球上 ; 地球上
happen in 发生于 ;
real life 现实生活 ;
less hostile
2 One option is to explore other planets to see if
we could live on them. The most likely choice is
Mars, which is relatively close to Earth and has an
environment less hostile than that of other planets.
Mars has fascinated people since ancient times,
and today our interest in Martian exploration is
greater than ever before. Films such as The Martian
enjoy worldwide popularity. More governments
and organisations are making efforts to educate the
public on the Red Planet, for example, the Mars
Desert Research Station in the Utah desert of the
US and the Mars Village in North-west China’s Qinghai Province.
Why Mars
Take notes quickly!
重点词汇
be close to 接近 ; 几乎 ;
ancient times 古代
be interest in 对…感兴趣 ;
Red Planet 红色星球 ; 红色行星
for example 例如
Research Station 研究站
3 Since the 1960s, we have been sending unmanned
spacecraft to Mars. Our probes have orbited the
planet, sending back valuable data and stunning
images. Our robots have explored the Martian
surface, testing the soil and searching for resources,
water and signs of life. Encouraged by discoveries
over the years, space agencies of various
countries are planning manned missions to
Mars that could take place within the next
25 years.
What is the main idea of this paragraph
Efforts
in exploring Mars
Take notes quickly!
重点词汇
unmanned 无人操作的 ; 无人控制的 ;
spacecraft 航天器 ; 宇宙飞船
orbited 沿轨道运行 ; 围绕…运动
Martian 火星的 ; 来自火星的 ;
discoveries 发现 ; 发觉 ;
over the years 长年累月
manned 有人值守的 ; 有人控制的
take place 发生,产生 ;
4 There is no doubt that humankind is drawn
towards Mars, with dreams of making it
our second home. However, sending people
there will require all the skill, courage and
intelligence of the human race. While the
Moon can be reached within days, it would
take months to reach Mars, travelling through
dangerous solar radiation. And even if the
first settlers do reach Mars safely, they may
not be able to return to Earth – ever. Staying
alive will be a daily challenge, but as proved
by the Biosphere 2 experiment, not impossible.
Take notes quickly!
重点词汇
There is no doubt that 毫无疑问 ; 毫无疑问的 ;
humankind 人 ; 人类
second home 别业 ; 第二寓所 ;
human race 人类
solar radiation 太阳辐射 ;
settlers 移民 ; 殖民者
be able to 能够 ; 能做到…的 ; 可以…的
return to 回到 ; 返回 ; 还给 ; 降到
Biosphere 2 生物圈二号
As early as the 1980s, scientists were building
Biosphere 2 in the Arizona desert. It consisted
of a closed space in which people, animals and
plants could live together. The “closed” concept meant that the space was designed to function with its own oxygen, food and water, needing nothing from the outside world. Although the two-year experiment was not a success,it did provide us with a better understanding of how humans might be able to live on
another planet. More recently, scientists have succeeded in growing a variety of plants in an environment similar to that on Mars. That definitely is a big step forward.
Take notes quickly!
重点词汇
As early as 早在
Biosphere 2 生物圈二号
live together 一起生活 ; 同居
be able to 能够 ;
live on 靠过活 ;
succeeded 达到目的 ;
a variety of 各种各样的 ;
similar to 类似
We need to take much better care of our own planet.”
What is the main idea of this paragraph
5 For now, human settlement of Mars is still
decades away. In the meantime, scientific
research shows that the planet Earth is getting
warmer. This change is being caused by human
activity and is having a terrible effect on the
biosphere. Until we are finally able to live on
another planet, we need to take much better
care of our own. Right now, it’s the only one
we have!
Take notes quickly!
重点词汇
human settlement 人类住区
In the meantime 在此期间;其间 ; 在这期间
have an effect on 对…的作用 ;
be able to 可以 ; 有能力 ;
live on 靠过活 ;
much better 好很多 ;
care of 照料 ;
Right now 马上,立即 ;
In which magazine would you most likely find the passage
1 The Traveller
2 All About Astronauts
3 Environmental Concerns
4 Biology for Fun
How much
do you know about Mars
Para.3
Para.4
Para.5
Para.2
Para.1
Risks to life on Earth
Why Mars
Efforts in exploring Mars
Efforts in exploring Mars
Attitudes:We need to take
care of our own planet.
Which is better, to live on Mars or to solve Earth’s problems
your opinions
solve the problems
...
move to Mars
Try to think about others
Question
Talk with others.
Write your ideas.
1.
2.
3.
Thank you!