much joy and happiness. So we thought we should share it with others."

Although Gorge has an unhappy face, he is the friendliest cat the family has ever had. "We take him for a walk after dinner every day. And all our neighbors 邻居like him. He likes playing with others very much. He is also my alarm clock闹钟. He wakes 叫醒me up every morning by climbing on my chest胸腔," Andrew said.

21. How many fans does Gorge have?

A. More than one hundred B. More than one thousand

C. Several hundred D. Several thousand

22. We can learn from the second paragraph that _______.

A. there are three cats in the family B. Andrew taught Gorge to stand up

C. Gorge began standing up six weeks ago D. the family moved house several weeks ago

23. Why might Gorge like to stand up?

A. Because his front legs are short B. Because his back legs are stronger

C. Because he learnt to do it from TV shows D. Because he doesn't know how to climb up onto things

24. According to the last paragraph, Gorge___________.

A. has a funny face B. enjoys a walk every day

C. doesn't like to play with strangers D. makes a noise to wake Andrew up

　　Using too much water or throwing扔 rubbish垃圾 into our rivers are clear ways that humans can put our water supply供应 in danger, but we also affect our water supply供应 in less obvious ways. You may wonder how paving(铺砌) a road can lead to less usable可使用 fresh water. A major part of the water we use every day is groundwater. Groundwater does not come from lakes or rivers. It comes from underground. The more roads and parking lots we pave, the less water can flow into the ground to become groundwater.

　　Human activity is not responsible for all water shortages(短缺). Areas of drier climates干旱气候 are of course more likely to have droughts(干旱) than ones with more rainfall, but in any case, good management can help to make sure there is enough water to meet 满足our basic needs.

　　Thinking about the way we use water every day can make a big difference, too. In the United States, a family of four can use 1.5 tons of water a day! This shows how much we depend on water to live, but there's a lot we can do to lower the number.

You can take steps措施 to save节省 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 only when it is full. Help your parents fix any leaks (泄露、漏洞)in your home. You can even help to keep our water