问题
材料分析题
下表为1830年~1999年世界总人口的数据。根据题意，完成下列各题。
（1）根据上表数据，请你绘制一幅世界人口增长折线图。
度是___________________。
（3）世界人口增长过快、过多，会带来哪些问题？请你说说。（至少两点）
___________________________________________________________________________________________
答案
（1）“略”
（2）100年、30年、15年、12年、12年；越来越快
（3）资源减少；环境遭到破坏；住房紧张；交通拥挤；犯罪率上升等。（任答两点）
and telephone hot lines, too. A hot line is a telephone line that offers a direct way of getting in touch with advisers .Most hot lines are completely anonymous ,that is to say , callers do not have to say their names or telephone n
umbers. Most hot lines are usually free. Callers do not have to pay for the advice or the phone calls, even if the calls are long distance ones. At some hot lines, the advisers are volunteers. Other hot lines pay their advisers for their work. Usually the advisers are full-time people with years of education and experience, but sometimes, the advisers have only taken a short training before starting to work on the hot lines. All the advisers listen to people and help them solve their problems