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Class Two, Grade Eight March 16

Class Two, Grade Eight March 16. Water. Pair work:. What do we use water to do ?. A: B: We use water to …. Pair work: A: What will happen if there is no water? B: If there is no water…. A quiz:. 1. You can live without water for a few _______.

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Class Two, Grade Eight March 16

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  1. Class Two, Grade Eight March 16

  2. Water

  3. Pair work: What do we use water to do ? A: B: We use water to …

  4. Pair work: A: What will happen if there is no water? B: If there is no water…

  5. A quiz: • 1. You can live without water for a few _______. • days b. weeks c. hours People can live without food for more than a month, but they can’t live without water for more than a week.

  6. 2. Your body needs about ______ litres of water daily. a. two b. four c. eight About 65-70% of our bodies is water. Every day a person will drink about 2.4 litres of water or other drinks.

  7. daily /  / everyday dailynewspaper

  8. 3. When you exercise, the amount of water you need ______. a. increases b. decreases c. remains the same You need more water during and after exercise because you lose water.

  9. amount /  / /  / howmuchthereis of something the amount of water a large amount of money

  10. increase /  / /  / become or make greater in number, quantity or size decrease remain /  / /  /

  11. 4. When you freeze water, it becomes a ________. a. liquid b. solid c. gas

  12. 5. About _____ of the earth is covered with water. a. one third b. one half c. two thirds Water covers 70% of the Earth’s surface, but only about 3% is fresh water.

  13. 6. The chemical symbol for water is ______. a. H2O b. HO2 c. H2O2

  14. symbol /  / a mark, sign or picture that shows something ＋ － × ÷

  15. How does water travel in the natural environment?

  16. Water falls from the _____ as rain. rain It runs into ______ and _____. streams It falls as rain again. rivers It rises from ______ to _______. thesea It flows into ______. thesea thesky

  17. ( )It flows into the sea. ( )It runs into streams and rivers. ( )It rises from the sea to the sky. ( )It falls as rain again. ( )Water falls from the clouds as rain. 3 2 4 5 1

  18. Water talk

  19. Skim the text and answer questions:

  20. 1.Was the tap on or off? It was on. 2.Why was the voice impatient? Because Daisy was wasting water. 3. Why did the water go to a treatment works? Because it was dirty after its journey. 4. Why did Benny think his sister was strange? Because she said, ‘I was talking to the water.’ 5.Did Benny believe what Daisy said ? No, he didn’t.

  21. 1.Daisy was brushing her teeth in the kitchen. 2.Her mother said, “ Turn that tap off.” 3.Daisy didn’t obey. 4.The voice sounded impatient. 5.It is not easy for water to get to our home.

  22. Don’t waste water! Don’t pollute water!

  23. Assignment 1. Read the text 2. Say something about water

  24. Thanks for listening!

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