外研版（2019） 选择性必修 第二册 Unit 6 Survival Developing ideas课件（共34张）

(共34张PPT)
Developing ideas
Learning aims
1. Understand the text and learn the problems humans are facing and our plans for the future.
2. Deepen the understanding of the subject----survival, understand the importance of protecting the Earth and promote humans spirit of exploration and adaptability.
Activity 1
Work in plete the quiz and find out how much you know about Mars. Try to guess if you are not sure of the answers.
1. a 2. a 3. c 4. b
Leading-in
Activity 2
Read the passage and find out why humans might live on Mars.
Because Mars is relatively close to Earth and has an environment less hostile than that of other planets.
Fast reading
Activity 3
Choose the magazine in which you would most likely find the passage and give your reasons.
1 The Traveller
2 All About Space
3 Environmental Concerns
4 Biology for Fun
Fast reading
Activity 4
Choose the statements that can be inferred from the passage.
Humans have yet not visited Mars.
People want to go to Mars on holiday.
There are plants growing on Mars.
The greatest risk to life on Earth used to be nuclear missiles.
One day, humans will have to go and live on another planet.
Our Plan A includes developing renewable energy resources.
The Biosphere 2 experiment ended in failure.
Careful reading
1. What is the greatest risk to live on Earth now
A. Nuclear missiles. B. Environmental problems.
C. Global warming. D. Resource reduction.
2. Why do people choose Mars to explore
①Because it is relatively close to Earth.
②Because its environment is less hostile than that of other planets.
③Because it has an environment suitable for farming.
④Because it doesn't need to be transformed to live on it.
A.①② B.①③ C.①④ D.①②③
Careful reading
Activity 5
Read again and choose the best answer.
3. Which of the following is TRUE
A. People have sent manned 1 spacecraft to Mars.
B. Our probes have orbited Mars, but not sending any valuable information.
C. Our robots have explored the Martian surface.
D. Due to lack of technology,it is unlikely that humans will explore Mars in the next 30 years.
4. From the last paragraph,we can infer that
A. The day of human migration to Mars is not far away
B. Because of the plan to immigrate to Mars,attention to Earth is not important
C. Global warming has little to do with human activities
D. We still need to protect the earth, despite the solutions to the risks
5. According to the passage, what is the style of the passage
A. Argumentation. B. Exposition.
C. Narration. D. Biography.
Think & Share
With environmental problems taking 1.______ as the greatest risk to life on Earth today, scientists are thinking of ways to lower this risk, such as replacing coal and oil with forms of renewable energy. But they are also 2.___ ___(prepare) for the worst: what can we do 3.______the terrifying scenes in films such as The Day After Tomorrow happen in real life What is our Plan B for Earth
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 4.______that of other planets.
There is no doubt 5.______ humankind is drawn towards Mars, with dreams of making it our second home. However, 6._________(send) people there will require all the skill, courage and 7.___ ___(intelligent) of the human race. It would take months 8.____ __(reach) Mars. 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.
For now, human settlement of Mars is still decades away. In the meantime, scientific research shows that the planet Earth is getting 9.____ __(warm). This change 10.__ ____(cause) 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.
over
preparing
if
than
that
sending
intelligence
to reach
warmer
is being caused
1.advanced　 adj.高级的；先进的
(教材原句)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.
在20世纪60和70年代，最大的恐惧就是只要按一下按钮，人类以及或许地球上所有高级的生命形式都可能会被核导弹消灭。
By the age of 14, he had taught himself advanced maths.
到14岁时他就自学了高等数学。
Next time you visit Bob, remember to give him a call in advance.
下次你去拜访鲍勃时，记得事先给他打个电话。
【知识拓展】
advance v.促进；前进；预支；提前；提出(想法、理论、计划) n.前进；进步
advance on/towards...向……前进 in advance预先；事先；预付
in advance of(时间上)提前于…… make an advance/advances in在……方面取得进步
【即学即练】 单句语法填空
(1)China has made great advances science and technology in the past decade.
(2)Learning is very important for us because we have to acquire new and (advance) knowledge every day.
(3)The mob advanced us, shouting angrily.
in
advanced
on/towards
2.terrifying　adj.极其可怕的，骇人听闻的
(教材原句)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
但是他们也在为最坏的情况做准备：如果像《后天》等电影里恐怖场景发生在现实生活当中，我们能怎么办？
It's terrifying that there are so many drunk drivers on the road.
路上有这么多酒后驾车的人，真可怕。
She was terrified at the thought of being alone.
她一想到孤零零的独自一人就惊恐不安。
【知识拓展】
(1)terrify vt. 使恐惧，使惊吓 terrify sb. into doing... 吓唬某人做……
(2)terrified adj.恐惧的；害怕的 be terrified of... 对……感到惊恐
be terrified at/by/with...被……吓了一跳
(3)terror n.惊恐，恐惧 in terror惊慌地 to one's terror 让某人恐惧的是
【即学即练】 单句语法填空
(1)People ran for the exits, screaming out terror.
(2)After his (terror) adventure, Mac felt relieved when he reached home safe to his loving family.
(3) (terrify), Elli and I tried all the bear defense actions we knew.
in
terrifying
Terrified
3.consist　v.由……组成；在于；符合，一致
(教材原句)It consisted of a closed space in which people, animals and plants could live together.
它由一个封闭的空间组成，人、动物和植物可以在其中共同生活。
Most food webs, consist of many weak links rather than a few strong ones.
大多数食物网是由许多薄弱环节组成的，而不是由几个强有力的环节组成的。
Your conduct is not consistent with what you say.
你的言行不一致。
【知识拓展】
(1)consist of (＝be made up of＝be composed of)由……组成
consist in (＝lie in) 在于……；存在于…… consist with 和……一致
(2)consistent adj. 一致的；连续的 be consistent with 与……一致的；符合的【即学即练】 单句语法填空
(1) (consist) of two campuses, this school covers a total area of 400 square kilometers with more than 4，000 students and teachers.
(2)True wealth does not consist in what we have but what we are.
(3)She's not very (consist) in the way she treats her children.
in
Consisting
consistent
while引导让步状语从句
(教材原句)While the Moon can be reached within days, it would take months to reach Mars, travelling through dangerous solar radiation.　
虽然月球几天之内就可到达，但是到达火星需用几个月的时间，要途经危险的太阳辐射。
（2024·九省联考）While it may be true that you don’t need expensive equipment to take up running，it’s important that you wear properly for your workouts.
虽然你不需要昂贵的设备来开始跑步可能是真的，但重要的是你在锻炼时穿合适的衣服。
She lives on the ground floor, while he lives upstairs with his wife and their two daughters.
她住在一楼，而他和妻子及两个女儿住在楼上。
【知识拓展】
while的用法：
(1)while意为“虽然；尽管”时，引导让步状语从句(从句常置于句首)。
(2)while意为“当……的时候”时，引导时间状语从句(从句动词必须是延续性动词)。
(3)while意为“然而、而”时，作并列连词用，表示对比或转折。
【即学即练】完成句子
(1)汤姆很擅长理科，而他的弟弟却无可救药。
Tom is very good at science, ．
(2)我不在家时，从不担心儿子，因为我妈妈照看他。
I never worried about my son because my mother kept an eye on him.
while his brother is hopeless
while I was away
记叙文通常包括时间、地点、人物、事件的起因、事件的经过和事件的结果六大要素。历险类记叙文要求学生能够根据命题的要求，记叙发生在自己或他人身上的一次历险。
历险类记叙文写作应注意的问题：
1．注意重点。历险类记叙文的重点应放在“历险”上，所发生的事情必须体现“险”，即具有危险性。
2．体现意义。所记叙的这次历险，应具有一定的教育意义，能使读者受到一定的教育或启发。
3．用对时态。历险类记叙文描述的通常是发生在过去的事情。因此，这类文章的时态大多采用与过去相关的时态： 一般过去时、过去进行时、过去完成时等。
Writing
◇ 基本框架 ◇
第一段： 在什么地方发生的危险；
第二段： 这些危险是什么，你是如何设法摆脱危险的；
第三段： 你的感受是什么。
◇ 增分佳句 ◇
1．sb. was doing...in someplace when...
2．sb. was about to do...when...
3．At that moment, sb. did sth.
4．Personally, I think that...
5．What surprised/attracted/delighted us most was that...
6．Tired as we were, we learned what we couldn't learn in/at school.
7．Through this emergency, we learned something that couldn't be learned in class.
8．I was deeply impressed/moved/touched by...
9．I learned a lot from...
10．What an unforgettable experience!
【活学活用】
假定你现在和队友失联， 独自一人被困在丛林中，请从以下几个方面讲述你自己在丛林中克服困难、艰难求生的故事。
1．在丛林中失联；
2．面临的危险和困难；
3．你的解决方法；
4．你的感想。
【审题谋篇】
【遣词造句】
(1)遣词
① 把……单独留下　
② 迷路
③ 失去和...的联系
④ 关机
⑤ 使...远离
⑥ 生火
⑦ 保护...免于...
leave...alone
be lost in
lose contact with
shut off
keep...away from
make a fire
protect...against
(2)造句
①他们不小心把我一个人留下了。
They ．
②我在丛林里迷了路，由于手机关机，与他们失去了联系。
I was lost in the jungle and ．
③我用驱虫剂来保护自己免受蚊虫叮咬。
I had the insect repellent to ．
④如果我不能走出丛林，或者在一周内被营救，我将不得不在丛林中寻找东西吃，比如一些昆虫。
,I will have to find things to eat in the jungle, such as some insects.
left me alone accidently
protect myself against bites
lost contact with them with my cellphone shut off
If I can't walk out of the jungle or be rescued within one week
【妙笔成篇】
It's been three days since the other teammates left the jungle and went back home, accidently leaving me alone. I was lost in the jungle and lost contact with them with my cellphone shut off.
All day in the jungle, while I had been walking, I had heard noises of animals. In order to keep warm and keep the animals away from me, I made a fire. As is known to us all, some insects in the jungle can be very dangerous. Fortunately, I had the insect repellent to protect myself against bites. Water was my biggest worry at first, but I discovered a river with the help of nests of some insects. There was no doubt that I no longer worried about looking for water.
Now I am worried about food. It is only enough for one person to eat for a week. If I can't walk out of the jungle or be rescued within one week, I will have to find things to eat in the jungle, such as some insects, which people wouldn't normally want to eat. I believe that I can get home again in one week, because the sun and stars can help me find the way.
1.possible possibly
2.advance advanced
3. low lower
4. terrify terror terrifying
terrified
5. explore exploration
6. vary various variety
7.intelligent intelligence
8.definite definitely
认知词汇
拓展词汇
nuclear
missile
renewable
scene
hostile
unmanned
spacecraft
stunning
agency
solar
Summary
应用词汇
1.advanced: advance on/towards;in advance; make an advance/advances in;advanced
2.terrify:terrify sb into doing sth;terrified; be terrified of;terror;in terror
3.consist:consist of;consist in;consist with;be consistent with
核心短语
1.wipe out
2.take over
3.replace...with...
4.make efforts
5.take place
6.consist of
7.succeed in doing
8.a variety of
9.be similar to
10.have an effect on
while引导让步状语从句
While the Moon can be reached within days, it would take months to reach Mars, travelling through dangerous solar radiation.　
虽然月球几天之内就可到达，但是到达火星需用几个月的时间，要途经危险的太阳辐射。
重点句式
课时重点回顾
Ⅰ单词拼写
1．Coal (组成) mostly of carbon is the secondary energy in this country.
2． (核武器的) weapons threaten the peace and security of the world.
3．In 1957 the Soviet Union launched the first satellite to (环绕……运行) the earth.
4．We'll do our best to catch up with the (先进的) world levels.
5．They built a primitive shelter out of the tree (树干).　
6. It is said that a Russian space (太空舱) is currently orbiting the Earth.
7. He is not only the first Chinese to go to space but also one of the greatest (宇航员) in the world.
consisting
Nuclear
orbit
advanced
trunks
capsule
astronauts
Ⅱ 单句语法填空
1．The engineers are also trying to develop an on and off “switch” where the glow would fade when (expose) to daylight.
2．The politician's actions are not (consist) with the commitments in his speeches.
3．She was (terrify) at the thought of going to the battlefield.
4． (advance) technology was brought into the local factory last year.As a consequence, the daily output has doubled by now.
5．He would call advance to make sure there was no alcohol at the party.
6．I was preparing for the exam, they were chatting
7．If so, you may be surprised to learn that libraries have changed for the better. It's been years since they were (dust) little rooms with books.
consistent
terrified
exposed
Advanced
in
while
dusty
Ⅲ 完成句子/句型转换/一句多译
1．虽然这个职位给你带来荣耀和权力，但是它也赋予你巨大的责任。
,it also imposes on you a great responsibility.
2．There is no doubt about the success of our reform in time.
→ our reform will succeed in time.(宾语从句)
3. He was exposed to the rain and wind last night and he was ill.
→ , he was ill.(过去分词短语作状语)
4．我们预付他一个月的工资。
①We (advance v．).
②We (advance v．).
③We (advance n．).
While this position offers you honor and power
There is no doubt that
Exposed to the rain and wind last night
paid him a month’s salary in advance
advanced a month’s salary to him
advanced him a month’s salary
Learn to walk before you run.
先学走，再学跑。