英语四级阅读理解练习题第044组

an effective way out for impoverished nations

4. Among "humanitys current problems" (Line6, Para. 3 ), the chief concern of the scientists is _____.
A. the impoverishment of developing countries
B. the explosion of the human population
C. the reduction of biological diversity
D. the effect of global wamfing

5. The authors purpose in writing this passage is _____.
A. to describe the difficulties in solving humanitys current problems
B. to present the different views on humanitys current problems
C. to analyse the contradiction between countries in dealing with humanitys current problems
D. to point out that humanitys current problems can only be solved through the cooperation of nations

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