文档介绍：概括大意
(一)More Than 8 Hours Sleep Too Much of a Good Thing(每晚只需8个小时,睡眠过多非益事)
1、Paragraph 2 (E)
2、Paragraph 4 (B)
3、Paragraph 5 (A)
4、Paragraph 6 (D)
A Kripke’s Research Tool
B Dangers of Habitual Shortages of Sleep
C Criticism on Kripke’s Report
D A Way of ing Insomnia
E Sleep Problems of Long and Short Sleepers
F Classification of Sleep Problems
5、To get a good night's rest, people may not need to(F)
6、Long sleepers are reported to be more likely to(E)
7、One of the sleep problems is waking in the middle of the night, unable to(A)
8. One survey showed that people who habitually ____ each night have a higher risk of dying. (C)
A fall asleep again
B e more energetic the following day
C sleep less than 7 hours confirm those serious consequences
D suffer sleep problems
E sleep more than 8 hours
(二)Soot and Snow: A bination(煤炭与白雪:火热的组合)
1、Paragraph 3 (C)
2、Paragraph 4 (A)
3、Paragraph 6 (F)
4、Paragraph 7 (B)
A Soot's Role in Changes in the Climate and the Atmosphere
B Observations of Warming in the Northern Hemisphere
C Explanation of Increased Warming Effect Caused by Soot
D Effort to Reduce Snow Albedo
E Ways to Reduce Soot Emission
F Greenhouse Gases as the Main Factor of Global Warming
5、In the twentieth century, soot(B)
6、Hansen cautioned that greenhouse gases(E)
7、Black soot covered snow and ice.(D)
8、A soot forcing is unusually effec