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问题 综合

读“世界人口增长图”，完成要求 

（1）世界人口每增加10亿所需要的时间越来越____，说明世界人口增长的速度逐渐______。

（2）世界人口迅速增长的主要原因是________________。

（3）假如你是联合国的人口问题专家，请你设计出控制人口增长的方案______________________。

答案

（1）短；加快

（2）经济发展较快，出生率大于死亡率

（3）人口的增长应与资源，环境相协调，与经济发展相适应计划生育等（意思相近即可）

单项选择题

Syntax is the study of______.

A. language functions

B. sentence structures
C. textual organization

D. word formation
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单项选择题

Why is(71)fun What delights may its practitioner espect his reward First is the sheer joy of making things.As the child delights in his mud pie,so the adult enjoys building things,especially things of his own design.Secong is the pleasure of making things that are useful to other people.Third is the fascinanon of fashioning complex puzzle-like objects of interlocking moving parts and watching them work in subtle eyeles,playing out the consequences of principies built in from the beginning.Fourth is the joy of always learning,which springs from the(72)nature of the task.In one way or another the problem is ever new,and its solver learns something:sometimes(73),sometimes theoretical,and sometimes both.Finally,there is the delight of working in such a tractable medium.The(74),like the poet,works only slightly removed from nure thought-stuff.Few media of ereation are so flexible,so easy to polish and rework,so readily capable of realizing grand conceptual structures. Yet the program(75),unlike the poet’s words,is real in the sense that it moves and works,producing visible outputs separate from the comstrct itself.It prints results,draws pictures,produces sounds,moves arms.Progamming then is fun because it gratifies creative longings built deep within us and delights sensibities we have in common with all men.

（75）处填（）。

A．construct

B．code

C．size

D．scale
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