专业英语答案_专业英语参考答案

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UNIT 4

1.土地利用与人类活动密切相关，人们通过利用土地来谋生。

The land use has to do with human activities.Peopleearn their living by using the land.2.衡量人口的指标通常有出生率、死亡率以及人口增长率等。

There are always some indexes such as the birth rate, the death rate and the growth rate to measure the population.3.医疗条件的改善、技术的进步以及人口的迁移导致人口近年来的迅速增长。The improved medical care, the progre of technology and the migration have led to the rapid increase of population in the recent years.4.人口在全球的分布是不均衡的，可以用人口密度来衡量人口分布的情况。The population distributes unevenly around world, which can be measured by the density of population.5有的发展中国家后来发现了其他国家和地区缺少的资源，如石油。他们利用通过石油赚取的财富来发展教育和医疗，结果是许多人的预期寿命大大延长了。Some developing counties in time discovered theresourceuch as petroleum which are in shortages in the other countries.They use the treasures earned from petroleum to develop education and medical care, resulting in a much longer life expectancy.英语作业：环境问题的根源在于人口增长还是资源的过度消耗？

Which is the cause of the environment problem, population explosion or overuse of resources?

UNIT 5

1.在空中，你可以凭借地面闪烁的灯光将城市与其他地区区别开来。

In the air, you can tell a city from the other regions by the glowing lights on the horizon.2.世界绝大多数的人口都集中分布在城市地区，这是人口分布不均衡的显著特征。

Most of the people in the world densely distribute in the urban areas, which is the distinguished feature of the uneven distribution of p

opulation.3.城市的区位受到很多因素的影响，包括环境、交通、防御以及接近原料和资源产地。

A lot of factors have influenced on the location of a city, including environment, transportation, defense and nearne to resources and raw materials.4.许多古代城市都有城墙来抵御敌人的进攻。近代，由于新式武器的产生，防御对于城市来讲不再像以前那么重要了。

Many ancient cities had walls to protect them against the enemy’s attack.In time, due to the invention of new weapon, defense is le important to cities than it used to.5.世界主要的宗教有基督教、佛教、犹太教和伊斯兰教。宗教对于城市的产生和定位起到了十分重要的影响和作用，形成和发展了像耶路撒冷、梵蒂冈等这样的宗教中心城市。

The major religions are Christianity, Buddhism, Judaism and Islam.The religion made a great difference location of cities, which made and developed the religious center cities such as Vatican and Jerusalem.有第四课和第五课的作业参考答案，给大家看看 吧