题目内容
—Forests are very important, aren’t they?
—Yes. They can prevent the water washing the earth away.
A．forB．toC．from
C
【解析】
试题分析：句意:森林是重要的，对吗？-是的，他们可以防止水把土壤冲走。prevent sth. from doing sth. 阻止某人做某事。这是一个固定的句型，介词应该用from。for 为了，因为；to 到。
考点：考查介词。
学业测评一课一测系列答案March 20th is World Water Day every year. According to a report from the United Nations, more than half of the world's major rivers have serious water loss and are polluted.
The Yellow River, the world's fifth longest river, watered some of the oldest farms on earth. But now it has a serious problem. 1.In most of the past 35 years, it didn't reach the sea.
The Nile in Egypt, running 6, 650 km, is the longest river in the world. 2.Now it is down to 2 billion m? or so. Australia's Murray River reaches the sea only every other year. One fifth of America's Rio Grande has no water, either.
3.Mostly it's damming (筑坝) and global warming that make rivers dry. 4. Now about 45, 000 of them lie across the world's rivers. They hold back around 15% of the world's fresh water from running to the sea.
Global warming is making things worse. Warmer weather takes water away. The glacier (冰川) are becoming smaller. 5.Global warming has had certain effects on water sources (源头). Droughts (干旱) happening around the world make people pay more attention to this fact.
A. Dams hold water to irrigate (灌溉) fields and make power. B. The source of the Yellow River is drying up because of it. C. It used to carry 32 billion m? of water a year. D. How does it happen? E. Factories pour waste water into rivers directly. F. Its source on Qinghai-Tibet Plateau is drying up. |
把A—E五个句子填入空白处。（5分）
Are you looking for something fun and would you like to help others in your spare time? Then join us to be a volunteer! We’re a non-profit（赢利的）organization. 1. Anyone, from twelve-year-old children to people in their seventies can become a volunteer.
2. Schools need help with taking care of children while parents are working. Hospitals need volunteers to look after children while their parents are seeing a doctor. 3. There is something for everyone.
“As a volunteer, I don’t want to get anything. Seeing the children’s happy faces, I’m happy, too.” Said Carlos Domingo, an old woman of 62.” “I often played computer games in my spare time before.
4. ” said another volunteer at the age of 18.
If everyone helps out a bit, we’ll have a better world to live in. interested? 5.
A．You can help people in many ways. B．Call us 1-880-555-5756 or visit our website: www.activol.com. C．We have volunteer jobs of all ages. D．Now I help older people learn how to use computers. E．Animal lovers can help take care of those dogs and cats without homes. |