问题 单项选择题

2011年9月29日,在酒泉卫星发射中心发射升空的我国全新研制的首个目标飞行器是()。

A.神舟一号

B.天宫一号

C.长城一号

D.神舟五号

答案

参考答案:B

解析:

天宫一号是我国首个目标飞行器,于2001年9月29日21时16分3秒在酒泉卫星发射中心发射,飞行器全长10.4米,最大直径3.35米,由实验舱和资源舱构成。它的发射标志着中国迈入中国航天“三步走”战略的第二步第二阶段。

选择题
阅读理解

     During the 19th century, it was common to hear people in Europe and America say that the

resources of the sea were unlimited. For example, a noted biologist writing in the mid-19th century

commented that none of the great sea fisheries(渔业) are to be exhausted. Today though, there is

evidence that the resources land and the air,  and that the endangered species (种类) include Herring

and Carp as well as the African Elephant, Indian Tiger, and the American Eagle.

     Further, the threats to fish are more alarming in some ways than the threats to animals and birds.

     This is because fish are a much needed food resource and people throughout the world depend on

fish as an important part of their dish,  and the decline (下降) in the fish supply could have extensive

effects on hunger and population.

     Fishermen in the North Atlantic alone annually harvest 20 billion pounds of fish to satisfy food

demands, but it is important to recognize that these practices cannot continue without depleting (耗尽)

fish storage within the next few years. Sea resources are rapidly declining in many parts of the world,

and the problem cannot he ignored (忽视) .

     We can predict that food supplies in the sea can not last forever.

1. According to the speaker, what was the attitude(态度) in the 19th century toward resources of

the sea?

A. Declined.              

B. Depleted.

C. Limited.                

D. Unlimited.

2. What is the range(地带)  of the decline in fish supply?  

A. Europe and Asia.        

B. The whole world.

C. Asia and America.      

D. America.

3. What does the author believe about sea resources?   

A. Sea resources can last forever.

B. None of the great sea fisheries are to be exhausted.

C. Fish supply has no effects on people.

D. Sea resources are important to people.

4. Which of the following best describes the purpose of the lecture?

A. Unlimited Sea Resources

B. Threats to Animals and Birds

C. Sea Resources on the Decline

D. Protection of Fish