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(共18張PPT)
Unit 5 Water is life
主題范疇：
人與自然
主題群：
環境保護
子主題：
環境污染及原因，環保意識和行為
Key question
What does water mean to us
understand the usefulness and importance of water.
identify some facts about water in daily life.
explore how to save water and use it wisely.
describe the relationship between water and the development of our society.
Unit objectives 單元目標
I can:
Lead in
Review: What did Dripple tell Du Yun at last on page 69
“Remember not to waste or pollute me. I’m valuable.”
How can we save water
Speaking
Talking about different ways of using water
Talk in groups about how we use water in different places. Look at the example and use the list below to help you.
For example
S1: Water is an important part of our lives. We use it for so many things at home.
S2: You’re right. We need to drink enough water every day to stay healthy.
S3: We also use water when we take a shower or bath.
S4: And we need water to cook food and to wash the dishes.
...
do experiments 做實驗
water crops 澆灌農作物
stay healthy 保持健康
wash the dishes 洗碗
Improve your pronounciation
Listen and repeat. Pay attention to the letters in blue.
/str/ street strong /spl/ splash split
/spr/ spread spring /skr/ scream screen
輔音連綴/str/、/spl/、/spr/、/skr/中，存在清輔音濁化的現象。在一些單詞中，我們需要把/s/后面的清輔音發成它對應的濁輔音。如：
① /tr/—/dr/: street中s后的/tr/常發/dr/的音
② /p/—/b/: spring中s后的/p/常發/b/的音
③ /k/—/g/: screen中s后的/k/常發/g/的音
(1) The strawberry plant in the garden 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) Spread the seeds around. In spring, you will have green sprouts as it rains.
(4) The screenwriter screamed when she spilt water on her script.
Listen and repeat. Pay attention to the letters in blue.
Learn about /str/
Listen and repeat. Pay attention to the letters in blue.
/str/ street strong
/str/
str
字母組合str常發/str/
Pay attention to these words with /str/. Read them aloud.
/str/ straight strawberry street strict
Pay attention to the sentence with /str/. Read them aloud.
It was strange for him to walk the streets all night.
The strawberry plant in the garden looks strange, but the strawberries are nice and sweet.
Learn about /spl/
Listen and repeat. Pay attention to the letters in blue.
/spl/ splash split
/spl/
spl
字母組合spl常發/spl/
Pay attention to these words with /spl/. Read them aloud.
/spl/ splash splendid splice split
Pay attention to the sentence with /spl/. Read them aloud.
Heavy rain splattered on the roof and splashed against the windows of the splendid house.
Learn about /spr/
Listen and repeat. Pay attention to the letters in blue.
/spr/ spread spring
/spr/
spr
字母組合spr常發/spr/
Pay attention to these words with /spr/. Read them aloud.
/spr/ spray spread spreader spring
Pay attention to the sentence with /spr/. Read them aloud.
Spread the seeds around. In spring, you will have green sprouts as it rains.
Learn about /skr/
Listen and repeat. Pay attention to the letters in blue.
/skr/ scream screen
/skr/
scr
字母組合scr常發/skr/
Pay attention to these words with /skr/. Read them aloud.
/skr/ scrap scratch screen screw
Pay attention to the sentence with /spr/. Read them aloud.
The screenwriter screamed when she spilt water on her script.
Pay attention to these words with/spl/, /spr/and /skr/. Read them aloud.
/spl/ splash splendid split
/spr/ spray spread spring
/skr/ scream screen script
describe description
Listen carefully and circle the word you hear from each pair.
Thank you!

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