【閱讀理解】Two United Nations agencies warned on Tuesday that children are most at risk of developing skin cancers as a result of the long-term decline in the earth's protective ozone layer. The agencies, the World Health Organization(WHO)and the UN Environmental Programme(UNEP), issued the warning as they launched a global programme aimed at alerting schools to the dangers of exposure to the sun.

　　Why does the risk of developing skin cancers in children become greater and greater

　　A、Because they pay little attention to their skin health.

　　B、Because they are short of physical training.

　　C、Because the earth's protective ozone layer declines year after year.

　　D、Because the earth is getting warmer and warmer.

　　正確答案： C

　　答案解析： 答案選C。本段第一句就說到，由于地球起保護(hù)作用的臭氧層一直縮小，因此兒童發(fā)生皮膚癌的危險性增大，故C項應(yīng)是最佳答案。

　　【閱讀理解】Young musicians in African countries are creating a new kind of pop music. The tunes and the rhythms of their music combine African traditions with various forms of music popular today, such as hip-hop, rap, rock, jazz, or reggae. The result is music that may sound familiar to listeners anywhere in the world, but at the same time is distinctly African. It is different also in another way Many of the songs are very serious and they deal with important social or political issues in Africa today.

　　This passage is about how African pop music is_______.

　　A、usually about love and romance

　　B、more serious than most pop music

　　C、popular with young people in Africa

　　D、mostly written just for entertainment

　　正確答案： B

　　答案解析： 答案選B。本題的問題是：非洲流行音樂的不同之處是什么?由本段倒數(shù)第一句可以得出答案。“It is different also in another way Many of the songs are very serious and they deal with important social or political issues in Africa today.” AD項錯誤，C項未提及。

　　【閱讀理解】“Longer life would give us a chance to recover from our mistakes and promote long term thinking,” says Dr Gregory Stock of the University Of California School Of Public Health. “It would also raise productivity by adding to the year we can work.”

　　Longer lives don't just affect the people who live them. They also affect society as a whole. “We have war, poverty, all sorts of issues around, and I don’t think any of them would be at all helped by having people live longer,” says US bioethicist Daniel Callahan. “The question is ‘What will we get as a society’s suspect it won’t be a better society.”

　　Which of the following is NOT mentioned as one of the things that living longer might enable an individual to do

　　A、Spending more time with his family.

　　B、Having more education.

　　C、Realizing more dreams.

　　D、Working longer.

　　正確答案： B

　　答案解析： 答案選B。長壽使個人能做的事主要在以上兩段里講到，作者沒有提到長壽可以讓人更多地接受教育。