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Review
Words and phrases
1.森林（ ） 7. rubbish ( )
2.河流（ ） 8. pollution( ）
3.山脉（ ） 9. pollute ( )
4.植物（ ） 10. on the land( )
5.重要的（ ） 11. in the sky( )
6.提供（ ） 12. under the water( ）
Listen and read the article
Complete the sentences.
1、Today, there ____a lot of ________.
2、There ___ also many _____ like you and me on Earth.
3、There ____many different _______. There ____ different ______ on Earth too.
4、There ___ ______ and ______, mountains and fields.
Comprehension exercise
Tell whether the following statements are true or false and give supporting details.
1、The weather in different places on Earth is different.
2、Different animals live in different places.
3、People can get air, water and food from the Earth.
4、There is a lot of pollution only because people put rubbish into the sea and under the ground.
Language points
1、The Earth provides us with air, water and food.
provide sb. with sth.
Can you make a sentence?
2、We put our rubbish into the sea and under the ground.
put sth. into …
Where should we put the rubbish?
3、It is important for us to protect the Earth for our future.
It is + adj. + for sb. to do sth.
Translate the sentences into English.