問題詳情：
選詞填空 根據短文內容，從方框中選擇恰當的單詞完成句子。所有單詞在填入前不需進行詞形轉換，每個單詞只能用一次，每空只能寫一詞。
throw important save effort clean |
water is very 1 to man, we can’t live without water. The 2 water is less and less. But some people don’t care about it. They waste a lot of water in their daily life. Even worse, they 3 rubbish into rivers. Many rivers and lakes are polluted. I think we have to 4 every drop of ’s also a good idea to encourage my friends and family members to join me! I believe if everyone makes a little 5, we can make a big difference.
【回答】
1. important 2. clean 3. throw 4. save 5. effort
知識點：選詞填空
題型：閲讀填空
