题目内容
thousand,large,necessary,cover,happy,
interesting,dirty,without,save,live
Water is the "life" of our earth. It is 1 for us. It 2 the largest part of the human (人类) body.
It covers most parts of the earth. It includes lakes,rivers,seas and oceans. We can swim in lakes or rivers. I think it's 3 than other sports in summer. It can give us 4 There are 5 of fishes in seas and oceans. Whales live in oceans,too. They are 6 and heaviest animals in the world.But now they are in danger because the ocean water is becoming 7 Water is important to all 8 things. 9 water,there can be no life on earth. So we must 10 every drop of water.
1. 2. 3. 4. 5.
6. 7. 8. 9. 10.
1. necessary 2. covers 3. more interesting
4. happiness 5. thousands 6. the largest 7. dirty
8. living 9. Without 10. save