资源简介

(共40张PPT)
课型：阅读课
Unit 6 Beyond Earth
Section B How far can we go
into space
课时：1a-1e
能够识别科普文章文体特征，借助略读、寻读获取文本主旨与细节信息，理清文章 的行文逻辑；掌握本课核心词汇、短语，理解被动语态等语言结构在语境中的表意功能。（学习理解）
01
辩证思考深空探索的价值与潜在问题；结合已有航天知识探讨人类星际旅行的前景，运用所学语言有理有据地表达个人看法，感悟人类勇于探索未知的科学精神。（迁移创新）
03
学生依托思维导图梳理文本框架，口头完成课文复述；能够围绕课文问题开展结对交流，运用本课词汇、句型清晰表达关于太空探索的基础观点，做到信息引用贴合原文。（应用实践）
02
教学目标
-01-
Lead-in
Have you ever stared at stars at night and wondered what stars really are
Let’s watch and learn.
-02-
Pre-reading
Where do you prefer to find information about space exploration Choose the ones that are true for you.
1a
A. Popular science magazines.
B. Science fiction books.
C. Online news.
I like popular science magazines because they offer true scientific knowledge.
I enjoy science fiction books. They are full of exciting imagination about space. Meanwhile, I check online news to tell the difference between real space facts and fictional stories.
Words and Expressions
mysterious
adj. 神秘的；奇怪的
spacecraft
n. (pl. spacecraft) 宇宙飞船
Words and Expressions
on board
在船（或火车、飞机）上
in case
以防万一
Something about the Universe
Exoplanet 系外行星
Exoplanets refer to planets circling stars besides the Sun. Scientists have discovered thousands of exoplanets so far. Some exoplanets share similar size, temperature and environment with Earth. Therefore, scientists guess that liquid water and even life may exist on these planets.
外行星指围绕太阳以外的恒星运转的行星。迄今为止，科学家已经发现了数千颗系外行星。部分系外行星在体积、温度、环境方面和地球十分相似，因此科学家猜测这些星球上或许存在液态水，甚至生命。
Something about the Universe
black hole 黑洞
A black hole is a special object in space. Its gravity is so strong that nothing, even light, can escape from it. We cannot see black holes directly, but scientists can find them by watching nearby stars. Many black holes lie far away in deep space.
黑洞是宇宙中神秘的天体，它拥有极强的引力。在它的引力范围内，任何物质都无法逃离，就连光也不例外，因此我们无法直接观测黑洞。科学家通过观测周边恒星的运动轨迹，判断黑洞的存在。黑洞广泛分布在深邃的宇宙之中。
Something about the Universe
light year 光年
A light-year is NOT a unit of time. It is a distance. Light travels at the fastest speed in the universe. One light-year means how far light can travel in one year. Proxima Centauri is 4.2 light-years away from Earth. That explains why travelling to other stars is such a huge challenge.
光年不是时间单位，是距离单位。光速是宇宙最快速度，1 光年代表光一年内走过的路程。比邻星距离地球 4.2 光年，这也解释了为什么前往其他恒星是巨大难题。
Pre-reading
What is this
Voyager 1 旅行者 1号探测器
Voyager 1 is a space probe sent by humans. It was launched in 1977. Its task was to explore outer planets. On board, there is a golden record, acting as a message to possible alien life. By 2025, it has travelled more than 25 billion kilometres away from Earth. Even so, it cannot reach any star soon. The nearest star is 4.2 light-years away, which means the journey will take thousands of years.
Reaching for the Stars
Pre-reading
What do you think the passage is about
It may talk about human dream of travelling to distant stars, our space exploration future and so on.
Let’s watch and learn.
-03-
While-reading
Read the title and the text quickly. Where would you find an article like this
1b
Reaching for the Stars
Since the beginning of human history, people have looked up at the stars and wondered what they were like. Many ancient cultures believed that these points of light were from gods or other mysterious worlds. However, as science and technology developed, we learnt the truth about stars. They are real places like our own sun, and they are farther away than anyone imagined. This raises the question: Can we visit the stars one day
The man-made object which has travelled farthest from Earth is Voyager 1. This spacecraft was launched in 1977. In case Voyager 1 is found by alien life, a special record with sounds and pictures from Earth is carried on board. It shows who we are and where we are from. By 2025, Voyager 1 was over 25 billion kilometres from Earth, but that is still a long way from Earth’s second-closest star, Proxima Centauri. That star is 4.2 light years away—about 40 trillion kilometres!
The challenge of visiting the stars gets even bigger for space flights with
Identifying the text type
Before you read, decide what kind of text it is. Is it a sci-fi story, popular science article, news report, or something else
Read the title and the text quickly. Where would you find an article like this
1b
humans. The farthest that any human has travelled in space is only about 400,000 kilometres, to the far side of the moon. Time is a big problem. At present, even a journey to the planet Mars will take around six to nine months. What will the astronauts eat and drink during this period And how about their health and safety These problems grow when we talk about visiting another star. It might take hundreds of thousands of years to get there!
Scientists, however, believe that visiting the stars is not a completely wild dream. One idea is to have the astronauts sleep during their journey, like some animals do in winter. Another is to develop much faster spacecraft. While this is not possible right now, with nations and scientists cooperating with one another, there is hope that the necessary technology will be developed. Humans have photographed other galaxies, set foot on the moon, and even successfully landed rovers on Mars. It seems likely that one day we will reach the stars.
Reaching for the Stars
Since the beginning of human history, people have looked up at the stars and wondered what they were like. Many ancient cultures believed that these points of light were from gods or other mysterious worlds. However, as science and technology developed, we learnt the truth about stars. They are real places like our own sun, and they are farther away than anyone imagined. This raises the question: Can we visit the stars one day
The man-made object which has travelled farthest from Earth is Voyager 1. This spacecraft was launched in 1977. In case Voyager 1 is found by alien life, a special record with sounds and pictures from Earth is carried on board. It shows who we are and where we are from. By 2025, Voyager 1 was over 25 billion kilometres from Earth, but that is still a long way from Earth’s second-closest star, Proxima Centauri. That star is 4.2 light years away—about 40 trillion kilometres!
The challenge of visiting the stars gets even bigger for space flights with
Passage Analysis
Human’s curiosity about stars
The long journey of Voyager 1
humans. The farthest that any human has travelled in space is only about 400,000 kilometres, to the far side of the moon. Time is a big problem. At present, even a journey to the planet Mars will take around six to nine months. What will the astronauts eat and drink during this period And how about their health and safety These problems grow when we talk about visiting another star. It might take hundreds of thousands of years to get there!
Scientists, however, believe that visiting the stars is not a completely wild dream. One idea is to have the astronauts sleep during their journey, like some animals do in winter. Another is to develop much faster spacecraft. While this is not possible right now, with nations and scientists cooperating with one another, there is hope that the necessary technology will be developed. Humans have photographed other galaxies, set foot on the moon, and even successfully landed rovers on Mars. It seems likely that one day we will reach the stars.
Passage Analysis
Hope for future exploration
The difficulties of space travel
Read again and match each paragraph with its main idea.
1c
Paragraph 1 A. Long distance space travel is difficult for humans.
Paragraph 2 B. Humans have long been curious about the stars.
Paragraph 3 C. In the future, it may be possible to visit a star.
Paragraph 4 D. No spacecraft has travelled close to a star.
They believed the lights were from gods or mysterious worlds. Because they lacked modern science to explain stars.
What did some ancient cultures think about the stars Why
Let’s read and think!
Since the beginning of human history, people have looked up at the stars and wondered what they were like. Many ancient cultures believed that these points of light were from gods or other mysterious worlds. However, as science and technology developed, we learnt the truth about stars. They are real places like our own sun, and they are farther away than anyone imagined. This raises the question: Can we visit the stars one day
1
A special record with Earth’s sounds and pictures. It is prepared in case alien life finds Voyager 1 and learns about humans.
What is carried on board by Voyager 1 Why
Let’s read and think!
The man-made object which has travelled farthest from Earth is Voyager 1. This spacecraft was launched in 1977. In case Voyager 1 is found by alien life, a special record with sounds and pictures from Earth is carried on board. It shows who we are and where we are from. By 2025, Voyager 1 was over 25 billion kilometres from Earth, but that is still a long way from Earth’s second-closest star, Proxima Centauri. That star is 4.2 light years away—about 40 trillion kilometres!
2
Astronauts can sleep during the journey; scientists can develop much faster spacecraft.
What are the two ideas for travelling to stars
Let’s read and think!
Scientists, however, believe that visiting the stars is not a completely wild dream. One idea is to have the astronauts sleep during their journey, like some animals do in winter. Another is to develop much faster spacecraft. While this is not possible right now, with nations and scientists cooperating with one another, there is hope that the necessary technology will be developed. Humans have photographed other galaxies, set foot on the moon, and even successfully landed rovers on Mars. It seems likely that one day we will reach the stars.
4
Humans have travelled to the far side of the moon, about 400,000 km.
What is the farthest trip that a human has travelled from Earth Do you know any details about it
Let’s read and think!
The challenge of visiting the stars gets even bigger for space flights with humans. The farthest that any human has travelled in space is only about 400,000 kilometres, to the far side of the moon. Time is a big problem. At present, even a journey to the planet Mars will take around six to nine months. What will the astronauts eat and drink during this period And how about their health and safety These problems grow when we talk about visiting another star. It might take hundreds of thousands of years to get there!
3
Humans have photographed other galaxies, set foot on the moon and landed rovers on Mars.
What space achievements has human beings made
Let’s read and think!
Scientists, however, believe that visiting the stars is not a completely wild dream. One idea is to have the astronauts sleep during their journey, like some animals do in winter. Another is to develop much faster spacecraft. While this is not possible right now, with nations and scientists cooperating with one another, there is hope that the necessary technology will be developed. Humans have photographed other galaxies, set foot on the moon, and even successfully landed rovers on Mars. It seems likely that one day we will reach the stars.
4
-04-
Post-reading
Complete the mind map with the information from the text. You can use your own words.
1d
wondered
truth
1977
record
six to nine
safety
sleep
develop
Discuss the questions. Find more information to support your answers.
1e
5. What do you think about the future of space exploration
Space exploration will keep developing. New technology will be created, but we also need to protect Earth.
Retell the passage according to the mind map.
Since ancient times, humans have been curious about the stars. As science developed, people learnt the truth about them.
Voyager 1, launched in 1977, is the farthest man-made spacecraft. It carries a special record to show alien life about humans. However, travelling to stars is full of challenges. Long space journeys take a very long time, and astronauts will face problems with food, health and safety. Still, scientists do not give up. They have ideas to solve these problems. Maybe astronauts can sleep during the trip, and we can build faster spacecraft. With international cooperation, new technology will be developed. It seems possible that humans will reach the stars one day.
Some people say we should spend money solving Earth’s problems instead of exploring distant stars. Do you agree Why or why not
New technology developed for space can be used to improve life on Earth. However, …
Protecting Earth is important, but space exploration can also help humans.
Let’s think!
-05-
Language
Points
Language Points
宾语从句
提出问题
定语从句
Since the beginning of human history, people have looked up at the stars and wondered what they were like. Many ancient cultures believed that these points of light were from gods or other mysterious worlds. However, as science and technology developed, we learnt the truth about stars. They are real places like our own sun, and they are farther away than anyone imagined.
This raises the question: Can we visit the stars one day
The man-made object which has travelled farthest from Earth is Voyager 1. This spacecraft was launched in 1977. In case Voyager 1 is found by alien life, a special record with sounds and pictures from Earth is carried on board. It shows who we are and where we are from. By 2025, Voyager 1 was
Language Points
光年
目前，现在
月球背面
成千上万的，数十万
over 25 billion kilometres from Earth, but that is still a long way from Earth’s second-closest star, Proxima Centauri. That star is 4.2 light years away—about 40 trillion kilometres!
The challenge of visiting the stars gets even bigger for space flights with humans. The farthest that any human has travelled in space is only about 400,000 kilometres, to the far side of the moon. Time is a big problem. At present, even a journey to the planet Mars will take around six to nine months. What will the astronauts eat and drink during this period And how about their health and safety These problems grow when we talk about visiting another star. It might take hundreds of thousands of years to get there!
Language Points
不切实际的幻想
踏上；登上
与…… 合作
尽管
Scientists, however, believe that visiting the stars is not a completely wild dream. One idea is to have the astronauts sleep during their journey, like some animals do in winter. Another is to develop much faster spacecraft. While this is not possible right now, with nations and scientists cooperating with one another, there is hope that the necessary technology will be developed. Humans have photographed other galaxies, set foot on the moon, and even successfully landed rovers on Mars. It seems likely that one day we will reach the stars.
-06-
Exercises
Voyager 1 ________ in 1977 and has flown billions of kilometres.
A．launched B．was launched
C．launches D．will be launched
2
—Why is a record put on Voyager 1
—________ alien life finds it, they can know about Earth.
A．In case B．In time
C．At present D．As soon as
3
More energy resources ________ on the moon in the future.
A．find B．found C．will be found D．are found
1
Multiple choice.
Pictures of other galaxies ___________ (take) by space telescopes years ago.
All the space problems _____________ (solve) with better technology later.
A special record ____________ (carry) on Voyager 1 for alien life.
Space exploration not only brings us knowledge but also _________ (improve) our daily life.
We are looking forward to ________ (learn) more about the deep space.
Scientists are working hard ________ (find) signs of alien life.
were taken
语法填空
will be solved
was carried
improves
learning
to find
-07-
Homework
1. Memorize the new words and phrases.
2. Retell the passage according to the mindmap.
3. Finish the exercises.
Homework

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