范文:Population and Birth Control
「要求」
當今世界面臨人口爆炸的危險，而中國的人口問題顯得尤為緊迫。在這種情況下，控制人口無疑成為中國的一項基本國策。請你圍繞人口問題寫一篇文章，以下面三句話分別作為三段段首的主題句：
Mankind is feeling greater pressure from the expanding number of people.
Birth control should be a basic policy in our country.
There are disadvantages of a family having more children.
「范文」
Population and Birth Control
Mankind is feeling greater pressure from the expanding number of people. The earth can never be expanded. Nor are there endless sources of food and clothing. Yet people are being born faster than they die. In the next forty years， the world population may double. How can so many people be fed？ What is worse， there is danger that someday mankind will have only standing room.
Birth control should be a basic policy in our country. China has the biggest population in the world. With a high birth rate， the production of grains and goods will be unable to meet the need of the people. To raise people's living standard， we must practice birth control.
There are disadvantages of a family having more children. First of all， as the parents have only limited income in general， they cannot give their children a good breeding in food ， clothing and shelter， let alone education. Second ， child rearing will exhaust the parents， leaving them no time and energy for their work. Last， having more children will increase the burden of the society.
「評語」
本文分三段論述了人口問題。首先從土地面積、衣、食以及出生率等方面論證了當今世界人口爆炸的嚴重性。接著，文章從我國人口數量大、人均耕地面積小、谷物增長速度相對緩慢的國情入手，闡明控制人口是我國的一項基本國策。最后，文章舉出事例說明一個家庭多子女的不利之處。全文條理清楚，行文簡練流暢。人口問題是目前比較熱門的話題之一，本文中一些有關的表達方法，值得同學們學習掌握。
注意平時的積累，學會多角度思維，有助于深入透徹地寫好這類文章。
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