[判断题]A global conservation law supposes that there is no flow in and out at infinity.

[单项选择]

Global Cancer Rates to Rise by 50% by 2020
The number of new cancer cases worldwide is expected to increase by 50% by the year 2020. But a new report suggests that as many as a third of new cancers could be avoided by adopting healthier lifestyles and through public health action.
The World Cancer Report, released by the International Agency for Research on Cancer, shows that cancer has now emerged as a major public health threat in developing countries as well as rich ones.
Overall, cancer was responsible for 12% of all deaths in 2000. But in many countries more than a quarter of all deaths are caused by cancer.
The report shows that 10 million new cancers were diagnosed globally in 2000, and that number is expected to rise to 15 million by 2020. Researchers say most of that increase will mainly be due to steadily aging populations in both developed and developing countries and current trends in smoking and other unhealthy habits.
&
A. an incurable disease. 
B. a mysterious disease.
C. a "Western" disease. 
D. a world disease.

[简答题]Haldance Law

[单项选择]In 1989, a(n) （　）law was passed by the United Nations to stop people putting waste into sea.
A. national
B. local
C. internet
D. international

[简答题]Global Sourcing

[填空题]Conservation or Wasted Effort
The black robin (旅鸫) is one of the world’s rarest birds. It is a small, wild bird, and it lives only on the island of Little Mangere, off the coast of New Zealand. In 1967 there were about fifty black robins there; in 1977 there were fewer than ten. (46) .
Energetic steps are being taken to preserve the black robin. (47) The idea is to buy another island nearby as a special home, a "reserve", for threatened wild life, including black robins. The organizers say that Little Mangere should then be restocked (重新准备) with the robin’s food. Thousands of the required plants are at present being cultivated in New Zealand.
Is all this concern a waste of human effort (48) Are we losing our sense of what is reasonable and what is unreasonable
In the earth’s long, long past hundreds of kinds of creatures have evolved, risen to a degree of-success and died out. In the long, long future there will be many n