当前位置:首页 > 英语考证 > 专四专八 > 听力

专业四级英语听力自学教程-Our Concern

2012-10-26 17:35:34 字体放大:  

在英语越来越重要的今天,学好英语成了大学生的首要目标。为帮助大学生更轻松的掌握英语知识,特提供以下资料:


The history of life on earth has been a history of interaction between living things and their surroundings. To a large extent, the physical form and the habits of the earth’s vegetation and its animal life have been molded by the environment. Only in the present century has one species of man acquired significant power to alter the nature of his world.

The rapidity of change follows the pace of man rather than the pace of nature. Radiation is now the unnatural creation of man’s tampering with the atom. The chemicals are creations of man’s inventive mind, having no counterparts in nature.

We have put poisonous and biological potent chemicals into hands of persons largely ignorant of their potentials for harm. We have subjected enormous numbers of people to contact with these poisons, without their consent and often without their knowledge. We have allowed these chemicals to be used with little or no advance investigation of their effect. Future generations are unlikely to forgive our lack of concern.