内容正文:
Unit 6 Beyond Earth
Section B How far can we go into space?
课时4(1a-2c)
九年级上册人教
1. 掌握并正确运用词汇:
mysterious, board, on board, billion, completely, cooperate, cooperate with,
survey, crowded, in case, set foot on
2. 能够运用阅读策略,讨论并回答与太空探索相关的问题
Learning goals
What Do We Know About Space? Past and Present
Ancient cultures
gods, mysterious worlds
points of light
stories, myths
Modern science
real places
billions of kilometers away
facts, data, spacecraft
Warming up
What Do We Know About Space? Past and Present
Why did ancient people think stars were gods?
They lacked scientific knowledge and used myths to explain the unknown.
How do we know the truth today?
Through the development of science and technology, such as telescopes and spacecraft.
Warming up
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.
Pre-reading
Read the title and the text quickly. Where would you find an article like this?
1b
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?
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?
look up
抬头向上看
While-reading
Read the title and the text quickly. Where would you find an article like this?
1b
Reaching for the Stars
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!
While-reading
Read the title and the text quickly. Where would you find an article like this?
1b
Reaching for the Stars
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!
目前,现在
数十万的
While-reading
Read the title and the text quickly. Where would you find an article like this?
1b
Reaching for the Stars
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.
have sb. do sth.
让某人做某事
While-reading
用法拓展 mystery [可数名词]神秘的事物;奥秘
Many ancient cultures believed that these points of light were from gods or other mysterious worlds. (教材P56 1b)
mysterious /mɪˈstɪəriəs/ adj.神秘的;奇怪的
Friends can connect in a mysterious way without even speaking.
朋友之间甚至可以不说话而以神秘的方式交流。(作定语)
The whole thing was very mysterious. 整个事情非常神秘。(作表语)
How life began on Earth is one of the great mysteries of science.
地球生命的起源是一大科学谜团。
Language points
In case Voyager 1 is found by alien life, a special record with sounds and pictures from Earth is carried on board. (教材P56 1b)
in case 以防万一
In case you get lost in the city, keep this map
with you.以防你在城市里迷路,随身带着这
张地图吧。
You’d better take the keys just in case I’m out.
你最好带上钥匙,以防我不在家。
可位于句首、句中或句尾,常与just连用。
词块拓展 case的相关短语:
in case of 如果,假使
in any case 无论如何,不管怎样
in that case 既然那样,那样的话
in some cases 在某些情况下
Language points
In case Voyager 1 is found by alien life, a special record with sounds and pictures from Earth is carried on board. (教材P56 1b)
board /bɔːd/ n.板;牌子
In the art classroom, Li Li cut out a thin wood board in the shape of Tian’anmen. 在美术课上,李莉裁出了一块呈天安门形状的薄木板。
I’ve put a list of names up on the board. 我在布告牌上贴出了一份名单。
用法拓展 常见的含board的复合名词:
noticeboard 布告牌 keyboard 键盘 whiteboard 白板
blackboard 黑板 chessboard 国际象棋棋盘 scoreboard 记分牌
Language points
In case Voyager 1 is found by alien life, a special record with sounds and pictures from Earth is carried on board. (教材P56 1b)
on board 在船(或火车、飞机)上
There are 12 children on board the ship. 这艘船上有12名儿童。
Have the passengers gone on board yet? 乘客都登机了吗?
词义拓展 on board还可表示“加入,进入(某机构工作)”。
It’s good to have you on board for this project.
这个项目有你参与,真是太好了。
同义词为board
Language points
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. (教材P56 1b)
billion /ˈbɪljən/ num. 十亿
用法与hundred、thousand、million相同,具体如下:
billion等数词
具体数字两无
模糊数字两有
前面有具体数词,后不加-s也不接of(无s无of)
前面没有具体数词,后加-s且与of连用(有s有of)
The company plans to invest one billion yuan in new technology this year. 这家公司计划今年在新技术上投资十亿元。
The Olympic Games were watched by billions of people across the world.全世界数十亿人观看了这届奥运会。
Language points
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. (教材P56 1b)
billion /ˈbɪljən/ num. 十亿
练习
1. The local government has poured ________ dollars into a programme of building a subway around the city.
A. 10 billions B. 10 billions of C. 10 billion D. billion of
2.The Milky Way is filled with _________(billion) of stars, making it much brighter.
C
billions
Language points
Scientists, however, believe that visiting the stars is not a completely wild dream. (教材P56 1b)
completely adv. 彻底地;完全地
由“complete(adj. 完全的;彻底的) + -ly(副词后缀)”构成。
In the future, AI may completely change many parts of our lives and help us solve some of the world’s biggest problems. 未来,人工智能可能会彻底改变我们生
活的许多方面,并帮助我们解决一些世界上最重大的问题。
It was completely different from how I had imagined it.
这与我的想象完全不同。
Language points
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. (教材P56 1b)
cooperate /kəʊˈɒpəreɪt/ v. 合作;协作
[不及物动词] cooperate with sb. (in/on sth.)(在某方面)与某人合作
The two groups agreed to cooperate with each other.
这两个组同意相互协作。
We are cooperating on a research project.
我们正在合作搞一个科研项目。
Language points
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. (教材P56 1b)
词形拓展 cooperation [名词]合作;协作
in cooperation with...与······的合作 cooperation between A and B A和B之间的合作
The fair was organized in cooperation with local businesses. 这个商品交易会是与当地企业联合举办的。
We would like to see closer cooperation between parents and schools.我们希望家长和学校有更加紧密的合作。
Language points
Read again and match each paragraph with its main idea
1c
A. Long distance space travel is difficult for humans.
B. Humans have long been curious about the stars.
C. In the future, it may be possible to visit a star.
D. No spacecraft has travelled close to a star.
Paragraph 1
Paragraph 2
Paragraph 3
Paragraph 4
While-reading
Humans looked up at the stars and _________ what they were like.
Human
Imagination
Complete the mind map with the information from the text. You can use your own words.
1d
Can we visit
the stars one
day?
Achievement
People learnt the _________ about stars as science and technology developed.
Voyager 1 was launched in _________.
Voyager 1 carried a special _________.
wondered
truth
1977
record
While-reading
Even a journey to the planet Mars will take around _________ months.
Complete the mind map with the information from the text. You can use your own words.
1d
Can we visit
the stars one
day?
Astronauts may face health and _________ problems.
Astronauts can _________ during their journey.
We can _________ much faster spacecraft.
six to nine
safety
sleep
Challenge
Expectation
develop
While-reading
Discuss the questions. Find more information to support your answers.
1e
1. What did some ancient cultures think about the stars? Why?
Some ancient cultures believed that stars were from gods or other mysterious worlds. The reason is that they knew little about science and technology at that time, so they explained the unknown stars with myths and beliefs.
Post-reading
Discuss the questions. Find more information to support your answers.
1e
2. What is carried on board by Voyager 1? Why?
A special record with sounds and pictures from Earth is carried on board. The reason is that in case Voyager 1 is found by alien life, this record can show who we are
and where we are from.
Post-reading
Discuss the questions. Find more information to support your answers.
1e
3. What is the farthest trip that a human has travelled from Earth? Do you know any details about it?
The farthest trip that a human has travelled from Earth is to the far side of the moon, about 400,000 kilometres. This record was set in April 1970, when an oxygen tank explosion forced the Apollo 13 crew to loop around the far side of the moon.
Post-reading
Discuss the questions. Find more information to support your answers.
1e
4. What do you think about the future of space exploration?
I think the future of space exploration is very hopeful. With the development of science and technology, and international cooperation, we can expect more exciting discoveries and explorations in space.
Post-reading
Match the word space with the words in the box and complete the sentences. Then discuss the questions.
2a
Vocabulary in Use
space
walk
suit
craft
telescope
station
ship
1. Do you hope to travel by spaceship to other planets one day?
2. Who was the first Chinese astronaut to do a __________?
3. What is the name of China’s first large survey __________ __________?
4. How many kilograms does a __________ that an astronaut wears usually weigh?
5. What is the longest time that an astronaut has lived on a __________ __________?
6. How fast do you think a __________ can travel?
spacewalk
space
telescope
spacesuit
space
station
spacecraft
Exercises
What is the name of China’s first large survey space telescope? (教材P58 2a)
survey /ˈsɜːveɪ/ n. 测绘;民意调查
(1)[名词]测绘;测量 常与carry out, do, make等词汇搭配使用
A geological survey found no dangerous rocks here.
地质勘测发现这里没有危险岩石。
A new land survey changed the borders of their property.
新的土地测量改变了他们的土地边界。
Language points
What is the name of China’s first large survey space telescope? (教材P58 2a)
survey /ˈsɜːveɪ/ n. 测绘;民意调查
(2)[名词]民意调查
carry out/do a survey (of ...) 做(关于······的)调查
According to a recent survey, more than 30 million people worldwide are learning
Chinese. 根据最近的一项调查,全世界有超过3000万人正在学习中文。
I’m doing a survey of teaching materials in school.
我正在做一个有关学校教学资料的调查。
Language points
Complete the conversation with the phrases in the box.
2b
on board fall asleep in space
rocket launch in case in time
Vocabulary in Use
Are you going to watch the ____________ tomorrow morning?
Yes. I’m going there early ____________ there are too many people.
Yeah, it will be very crowded. I think I’ll watch it online instead.
I’d prefer to see it with my own eyes. I want to be an astronaut in the future.
Cool! The job must require you to be strong both in mind and body.
Ann:
Bob:
Ann:
Bob:
Ann:
rocket launch
in case
Exercises
Complete the conversation with the phrases in the box.
2b
on board fall asleep in space
rocket launch in case in time
Vocabulary in Use
Yes. I think it’s fantastic to live and work ____________.
But it must be difficult to ____________ if you need to be tied down!
Not a problem for me. I believe that space travel will be made much easier ____________.
Well, I’ve only been ____________ a plane twice, and I was scared. I prefer
to have a job that keeps my feet on the ground.
Bob:
Ann:
Bob:
Ann:
in space
fall asleep
in time
on board
Exercises
Yeah, it will be very crowded. (教材P58 2b)
crowded /ˈkraʊdɪd/ adj. 人(太)多的;拥挤的
be crowded with 挤满······
The train was very crowded, and we had to stand. 火车很挤,我们只好站着。
The old town square was crowded with people. 古老的小镇广场上挤满了人。
词形拓展 crowd [动词]挤满;塞满& [名词] 人群;观众
Tourists crowd the beach every summer. 每年夏天,海滩上都挤满了游客。
We had to push our way through the crowd. 我们得从人群中挤过去。
反义词:uncrowded adj.不拥挤的,人少的
Language points
Complete the passage with the correct forms of the words in the box.
2c
set foot on complete cooperate cancel
canceled/cancelled
set foot on
Vocabulary in Use
For thousands of years, human beings dreamt of visiting the moon and other planets. Though many missions failed or had to be ________________, space exploration never stopped. In 1969, humans finally ______________ the moon’s surface. Since then, more missions to the moon have been ______________.
completed
dream of doing sth.梦想做某事
Exercises
Complete the passage with the correct forms of the words in the box.
2c
set foot on complete cooperate cancel
cooperate
Vocabulary in Use
It is hoped that moon bases will be built in the near future so that scientists can _____________ and do more research there. In time, it seems possible that the wildest dream of visiting other planets will
also come true.
成为现实
Exercises
Key words
Expressions
mysterious, board, billion, crowded
completely, cooperate, survey
on board, in case
Summary
35
1. 与一位家人或朋友用英语进行讨论,并记录下对方的回答。
话题(任选1个):
① What do you think stars are?
② Do you think humans will ever reach another star? Why or why not?
2. 将本课所学内容形成重点笔记。
Homework
36
Thank You!
九年级上册人教
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171764.05
$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 believe that these points of light were from gods or other mysterious worlds. However, as technology and science developed, we learned 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 voyage one. This spacecraft was launched in nineteen seventy seven. In case voyager one 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 twenty twenty five, voyager one was over twenty five billion kilometers from earth, but that is still a long way from earth. Second closest star proxy, senti. That star is four point two light years away, about forty trillion kilometers. The chAllenge of visiting the stars gets even bigger for space flights with humans. The far is that any human has travelled in space is just over four hundred thousand kilometers 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 believe that these points of light were from gods or other mysterious worlds. However, as technology and science developed, we learned 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 voyage one. This spacecraft was launched in nineteen seventy seven. In case voyager one 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 twenty twenty five, voyager one was over twenty five billion kilometers from earth, but that is still a long way from earth. Second closest star proxy, senti. That star is four point two light years away, about forty trillion kilometers. The chAllenge of visiting the stars gets even bigger for space flights with humans. The far is that any human has travelled in space is just over four hundred thousand kilometers 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.