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人教新版九上英语AI赋能完全备课 教学课件
第一单元
1.沁园春 雪
毛泽东
Lesson 8
Reading Plus
Learning Objectives
In this lesson you will:
1. predict what the text is about using the title and pictures.
2. find the main idea and key information by skimming and scanning.
3. name different types of satellites and share your own opinions.
Lead in
Do you know what a satellite is What do people use satellites for in daily life
Satellites are man-made objects launched into orbit around Earth. They help us in many ways.
Here are several types of satellites according to their jobs.
Communication Satellites: For broadcasting signals and enabling global communication.
Weather Satellites: For monitoring atmospheric conditions.
Navigation Satellites: For providing GPS services.
Earth Observation Satellites: For tracking environmental changes.
...
Do you know
The world’s first man-made satellite is Sputnik 1. It was launched by the Soviet Union on October 4, 1957.
China’s first man-made satellite is Dong Fang Hong I (DFH-1).It was launched on April 24, 1970, from the Jiuquan Satellite Launch Center in northwest China.
Look at the title and picture. Answer the following question.
Predict
What do you think this article will talk about Tick the possible ones.
the history of satellites
different types of satellites
the future of satellites
the uses of satellites
the bad effect of satellites
...
All about Satellites
In October 1957, people listening to radios around the world heard something no one had ever heard before. For three weeks, there was just “Beep, beep, beep."About one beep a second. Millions of people sat round their radios just listening for this beep. The beep itself was not all that amazing. The amazing thing was the place where it came from-space. The beep came from the world's first man-made satellite, Sputnik 1.
Sputnik 1 was launched by the Soviet Union on 4 October 1957. It was round, made of metal, and more than two times larger than a basketball. It weighed about 84 kilograms, travelled at 29,000 kilometres an hour,
and took 96.2 minutes to circle Earth. Sputnik 1 stopped beeping when its radio battery died on 26 October, and it burnt up when it fell back to Earth on 4 January 1958.
The launch of Sputnik 1 also began the age of satellites. The first satellites were used for research. Through them, we can better understand the world we live in. They also send back photographs that help us to make better maps of our world.
Communication satellites were also soon developed. These allow TV and radio signals to be sent across oceans or to places thousands of kilometres away. This is how people can watch TV across continents
and oceans. Weather satellites soon followed. These can tell us when a storm is coming or whether it will snow next week. One new kind of satellite that is now becoming more useful to the public is the positioning satellite. This satellite works with a highly complicated system, like the BDS(BeiDou Navigation Satellite System), which can tell us where our car or even our mobile phone is.
It seems that there is no end to the possible uses of satellites. The only real limit to their use is our own imagination.
Read the text quickly and get the main idea.
This text tells us the history of man-made satellites, starting from the world’s first satellite Sputnik 1. It also talks about different kinds of satellites and their many useful jobs in our life, and says satellites will have more amazing uses in the future.
Read the text. Tick the uses of satellites that are mentioned.
1
as homes for people
for research
to make maps
to grow plants
to help us communicate
to collect energy from the sun
to help us know the weather
to know the position of things on Earth
Answer the questions. Share your opinions in class.
2
1. How long was Sputnik 1 in space What happened to it in the end Why was Sputnik 1 important
It stayed in space for about 3 months (from October 1957 to January 1958).
In the end, it fell back to Earth and burnt up in the air.
It was important because it was the world's first man-made satellite, and it started the age of satellites for all humans.
2. What other types of satellites do you know What are they used for
Communication satellites – send TV, radio, and phone signals across the world.
Weather satellites – help predict storms, rain, or snow.
Positioning satellites (like BDS, GPS) – tell us where our car, phone, or other things are.
Research satellites – study space, Earth, or the universe.
Spy satellites – take pictures for military or government use.
Navigation satellites – help ships and planes find their way.
...
3. Have you seen a photo of your city, town, or home from space Does it change how you think of your world How so
I have seen a satellite photo of my city from space. It made me feel that our world is both big and small. Big because you can see how large the Earth is, but small because everything looks so tiny from far away. It also makes me think about how many people live on this planet and how we all share one home. It helps me understand that we should take care of our Earth.
Thanks!
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