there's a lot we can do to lower the number.

　　You can take steps to save water in your home. To start with, use the same glass for your drinking water all day. Wash it only once a day. Run your dishwasher (洗碗机)only when it is full. Help your parents fix any leaks in your home. You can even help to keep our water supply clean by recycling batteries instead of throwing them away.

　　1. Which of the following is most likely to lead to less groundwater?

　　A. Using river water.

　　B. Throwing batteries away.

　　C. Paving parking lots.

　　D. Throwing rubbish into lakes.

　　2. What can be inferred from the text?

　　A. All water shortages are due to human behavior.

　　B. It takes a lot of effort to meet our water needs.

　　C. There is much we can do to reduce family size.

　　D. The average family in America makes proper use of water.

　　3. The last paragraph is intended to________.

　　A. show us how to fix leaks at home

　　B. tell us how to run a dishwasher

　　C. prove what drinking glass is best for us

　　D. suggest what we do to save water at home

　　4. The text is mainly about________.

　　A. why paving roads reduces our water

　　B. how much we depend on water to live

　　C. why droughts occur more in dry climates

　　D. how human activity affects our water supply

答案与解析