【正文】
of the earth is covered with water, we are still short of drinking water. We can: about ways of saving water. and use the indefinite pronoun and adverb correctly. 3. Write a proposal. Summary 3. Write a proposal( 提議 ) about saving water to all the students in your school. My dear friends, Water is very important to human beings. Let’s do something to protect and save it. First, ____________________ . Second,_______________________________. Third, _______________________________. Let’s try our best to save water and our pla. _________ _____________ Homework 。 場地 , 田地 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. one by one year by year step by step 一個(gè)接一個(gè) 一年年 一步步 1. If we want to use the sea water, we must ______ ___(拿走) the salt from the sea water. 2. How