听下面一段材料,回答第1-4题。 |
1. Where does the fresh water people need come from? |
A. Rivers and lakes. B. Underground. C. Both A and B. |
2. How much water can we drink of all the water the world? |
A. 3%. B. 97%. C. 4%. |
3. What is the speaker mainly talking about in this passage? |
A. The ways of getting fresh water. B. How to use fresh water in our daily life. C. AII people in the world should save water. |
4. Which of the following is true? |
A. Hunger is the only problem in the world. B. Water shortage is the only problem in the world. C. Scientists have been working hard on solving water shortage. |