牛津深圳版英语七下Unit5《Water》（SpeakingWriting）课件 （共21张PPT）

课件21张PPT。Unit5《Water》
SpeakingSpeakingA Talking timeTry to read the tongue twister as quickly as possible.I scream,
you scream,
we all scream for ice cream! Read the words and learn about /str/, /spl/, /spr/, /skr/. A1 Listen carefully and circle the words
you hear from each pair. 1. /strei/ /stei/
2. /stri? / /spri?/
3. /split/ /spit/
4. /'splend?(r)/ /'spend?(r)/
5. /skri:m/ /stri:m/
6. /stript/ /skript/A2 Read these sentences. Pay attention
to the letters in bold. 1.The strawberry plant in the street looks strange,
but the strawberries are nice and sweet.
2. Heavy rain splattered on the roof and splashed
against the windows of the splendid house.
3. Sprinkle the seeds around. Spread them out. In
spring, you will have green sprouts.
4. The screenwriter screamed when she saw the
script.蒸发B Speak upHow does water become rain? In groups, talk about this process.First, … Then, …
Next, … Finally, … heats the water
becomes vapour
forms clouds
cools and forms small
drops of water
rain fallsThe sun heats the water. More vapour in the airVapour cools and forms drops of water.Complete the flow chat to learn more about this process.First, the Sun heats the water in the sea. The water becomes vapour and rises from the sea. Then, more and more vapour forms in the air and makes clouds. When the vapour cools, it becomes small drops
of water. Then the small drops of water becomes too heavy to stay in the air. Finally, rain falls.WritingDiscussWhere does rain come from?
What makes water rise from the sea?
How can cloud become rain?
What does water form in the sky?根据实际情况回答下列问题。
1. How can we save more water, by having
a bath or taking a shower?
2. Can we drink all the water on Earth?
3. What can you do to save more water at
your home?
4. Which is more useful to us, coca cola
or water?
5. How many glasses of water do we need
every day?Did you know?How to write an experiment?(格式)1. 多用无主语的祈使句。
2. 常用表示时间先后顺序的序数词或时间副词。Add some salt to… Heat the water.
First, … Second, …
Then, … Finally, …Writing: An experimentWriting A: What experiment is the boy
doing? In groups, describe the pictures.saltstir(搅拌)Add some salt to a glass of water.Stir the water. (disappear, become part of)Heat the water. (a white cloud, be made up of, small drops of, continue)Finally, … (start to dry up)Writing: An experimentFinally, …(start to dry up)Heat the water. (a white cloud, be made up of,
small drops of, continue)Stir the water. (disappear, become part of)Add some salt to a glass of water.Using a flow chart4Go over the process of how water becomes rain. Take notes on the important steps.Writing BWrite a short paragraph about this
experiment. Use the information in A to
help you.
First，add some salt to a glass of water.
____________________________________
____________________________________
____________________________________
Finally,______________________________.
The salt turns into crystals.First, add some salt to a glass of water.________
_________________________________________________________________________________________________________________________________________________________________
Finally,_________________________.
The salt turns into crystals.the water. The salt disappears and becomes part of the water. Next, heat the water. You can see a white cloud. It is made up of small drops of water. Continue to heat the water. the water starts to dry up.Then stir