It is where prices and markets do not operate properly that this benign(良性的)trend begins to stumble, and the genuine problems arise. Markets cannot always keep the environment healthy. If no one owns the resource concerned, no one has an interest in conserving it or fostering it: fish is the best example of this.
26.According to the author, most students .
A)believe the worlds environment is in an undesirable condition
B)agree that the environment of the world is not as bad as it is thought to be
C) get high marks for their good knowledge of the worlds environment
D) appear somewhat unconcerned about the state of the worlds environment
27.The huge increase in world production and population .
A) has made the world a worse place to live in
B) has had a positive influence on the environment
C) has not significantly affected the environment
D) has made the world a dangerous place to live in
28.One of the reasons why the long-term trend of prices has been downwards is that .
A)technological innovation can promote social stability
B)political instability will cause consumption to drop
C) new farming and crop technology can lead to overproduction
【六级阅读理解练习 2011.04.20】相关文章:
最新
2016-10-18
2016-10-11
2016-10-11
2016-10-08
2016-09-30
2016-09-30