【正文】
d write the correct words in the blanks. stars the Earth the Moon the Sun Pay attention: proper noun uses capital the Sun the Moon the Earth stars (1)What are the blue parts? (2)What are the green and brown parts? (3)What are the white parts? Clouds land sea They are sea. They are land. They are clouds. is the poster about? ? TitleProtect the Earth things are there on Earth? air rivers pollution sea field animals Earth water forests plants people mountains Whilereading the passage and guess the meanings of words and phrase. (1)The Earth provides us with air, water and food. a. gives b. shows (2)We burn things to make energy. a. set … on fire b. make … very strong a a (3)This pollutes the air. a. makes … clean b. makes … dirty (4)This pollutes the Earth and kills animals and plants. a. cleans b. makes…die (5)It is important for us to protect the Earth for our future. a. keep … safe b. change b b a the conversations with the words and phrase from the box. (1)Tom: The water from the factory is dirty. Bob: Yes. We must not let it ______ the river. We must do something to ______ the river. Tom: Yes. It’s __________ for us to do something about this. burn pollute provide…with important protect pollute protect important the conversations with the words and phrase from the box. (2)Jack : Forests are