2012牛津深圳版八上Chapter1《Water》ppt课件.ppt

CHAPTER ONE Water
Answer the following questions.
What is Hi doing now?
What does Lo want to do now?
What does Hi say to him?
What does Lo probably feel when he hears this?
What may happen to Lo?
A Brainstorming: Where can we see water?
B How much do you know about water? Try this quiz first.
You can live without water for a few ______.a days b. weeks c. hours
Your body needs about ______ litres of water every day.a twob fourc eight
When you exercise, you need ______ water.a moreb lessc little
When you boil water, it es ______.a liquidb solidc gas
Water covers about ______ of Earth.a one thirdb halfc two thirds
The scientific symbol for water is ______.a HOb H2Oc H2O2
C What do you usually use water to do? Discuss in groups and give your answers.
D Look at these pictures again and think what may happen if there is no water.
A1 Use the picture on the right to put these sentences in the correct order.
( ) It flows into the sea.
( ) It runs into streams and rivers.
( ) It rises from the sea to the sky.
( ) Water falls from the clouds as rain.
( ) It falls as rain again.
A2 Look at the picture again and say how es in your own words.
B1 Look at the title of the story and the picture on page 3. Who do you think are talking in the story?
Water talk