Sponsored by Chowdhury and Hossain, Advanced PublicationsListen
Unit 22 Lesson 5
Satellites
Objectives: By the end of the lesson you will have
• discussed satellites
• read a passage to identify positions
• written questions to given answers
• written a short paragraph describing an illustration
A Satellites can be of different sizes and shapes. Look at the following pictures of satellites. Work in pairs and discuss what they look like. How are they different from each other?
Picture
B Satellites are used by scientists to serve varied purposes. They can be of different types depending on the purpose they serve. Now match a satellite type with its possible function.
1 A Weather Satellite
2 A Navigation Satellite
3 An Astronomical Satellite
4 A Telecommunication Satellite - helps us to watch live programmes on television
- provides information about weather conditions on earth
- monitors radiation from stars or outer space
- helps a ship to pinpoint its position
- helps an aeroplane to identify its position.
- helps us to make an international phone call
- helps us to calculate if a storm is coming
- investigates where mineral deposits can be found
C Satellites are different from space probes. A space probe works in outer space away from the earth. But satellites move around the earth. The path that each satellite takes is called an orbit.
Read the description below. Write the name of the orbit in the illustration. One has been done for you.
Picture
A 'Geostationary' orbit moves in a big circle away from the earth. It allows a satellite to rotate at the same speed that the earth rotates so that it stays at the same position over the earth all the time. This is useful for television and navigation. The 'Polar' orbit circles around the earth's poles, so that the entire earth can be scanned to observe weather conditions. However, the one mostly favoured by scientists is the 'Low Earth' orbit, because it allows them to carry out space investigations. An 'Eccentric' orbit on the other hand allows a satellite to rotate at different distances from the earth and send information from different angles. This is useful for studying magnetic arid electrical fields.
D Write questions for the following answers based on your reading of the passage.
1 An orbit.
2 No, it stays at the same position all the time.
3 To scan the entire surface of the earth.
4 To obtain weather conditions.
5 An eccentric orbit.
Message received by ground radar launched by a rocket
E Look at the following illustration and from the information you have got from the rest of this lesson, write a paragraph on ''Satellites".
Focus:
Skills.
Speaking, reading,
writing. Functions.
Describing processes.
Grammar/Structure.
Asking questions, simple present tense.
Vocabulary.
rotate, processed, scanned, monitor.
This text will be replaced
Unit 22 Lesson 5
Satellites
Objectives: By the end of the lesson you will have
• discussed satellites
• read a passage to identify positions
• written questions to given answers
• written a short paragraph describing an illustration
A Satellites can be of different sizes and shapes. Look at the following pictures of satellites. Work in pairs and discuss what they look like. How are they different from each other?
Picture
B Satellites are used by scientists to serve varied purposes. They can be of different types depending on the purpose they serve. Now match a satellite type with its possible function.
1 A Weather Satellite
2 A Navigation Satellite
3 An Astronomical Satellite
4 A Telecommunication Satellite - helps us to watch live programmes on television
- provides information about weather conditions on earth
- monitors radiation from stars or outer space
- helps a ship to pinpoint its position
- helps an aeroplane to identify its position.
- helps us to make an international phone call
- helps us to calculate if a storm is coming
- investigates where mineral deposits can be found
C Satellites are different from space probes. A space probe works in outer space away from the earth. But satellites move around the earth. The path that each satellite takes is called an orbit.
Read the description below. Write the name of the orbit in the illustration. One has been done for you.
Picture
A 'Geostationary' orbit moves in a big circle away from the earth. It allows a satellite to rotate at the same speed that the earth rotates so that it stays at the same position over the earth all the time. This is useful for television and navigation. The 'Polar' orbit circles around the earth's poles, so that the entire earth can be scanned to observe weather conditions. However, the one mostly favoured by scientists is the 'Low Earth' orbit, because it allows them to carry out space investigations. An 'Eccentric' orbit on the other hand allows a satellite to rotate at different distances from the earth and send information from different angles. This is useful for studying magnetic arid electrical fields.
D Write questions for the following answers based on your reading of the passage.
1 An orbit.
2 No, it stays at the same position all the time.
3 To scan the entire surface of the earth.
4 To obtain weather conditions.
5 An eccentric orbit.
Message received by ground radar launched by a rocket
E Look at the following illustration and from the information you have got from the rest of this lesson, write a paragraph on ''Satellites".
Focus:
Skills.
Speaking, reading,
writing. Functions.
Describing processes.
Grammar/Structure.
Asking questions, simple present tense.
Vocabulary.
rotate, processed, scanned, monitor.