2. How many people die from skin cancers including melanoma all over the world every year?
A An average of 66,000.
B Approximately 130,000.
C About 196,000.
D Between 2,000,000 to 3,000,000.
3. What people are more likely to develop eye cataracts?
A Fairer-skinned people.
B Darker-skinned people.
C People living near the equator.
D People living near the poles.
4. All of the following articles may use some chemicals unfavorable for the preservation of the ozone layer EXCEPT______.
A aerosols
B refrigerators
C pesticides
D medicines
5. The phrase “for good” in the last paragraph can be best replaced by______.
A permanently
B correctly
C largely
D well
答案与题解:
1.C 文章第一句就说到,由于地球起保护作用的臭氧层一直缩小,因此儿童发生皮肤癌的危险性增大,故C项应是最佳答案。
2.A 第三段第一句说,WHO在2002年的世界健康状况报告中提到,全世界每年平均有S6, 000人死于黑素瘤及其他类型的皮肤癌,故A项是正确答案。
3.C 第四段最后一句说到,住在赤道附近的人更容易患白内障,并没有提到南极、北极。至于肤色,该句说到,白人、黑人患白内障的可能性是相等的。
4.D 第五段最后一句举例说明某些杀虫剂、电冰箱及烟雾剂可能使用一些对臭氧层有害的化学物质,并没有提到供内服的药品,而且根据推理,也应将其排除在外。
5.A 短语for good或for good and all的意思是“永久地”、“决定性地”;英英词典的释义为“permanently”、“finally”、“forever”,故其他选项均不确切。