Living Space
How much living space does a person need? What happens when his space needs are not met? Scientists are doing experiments on rats to try to determine the effects of overcrowded conditions on man. Recent studies have shown that the behavior of rats is greatly affected by space. If rats have enough living space, they eat well, sleep well and produce their young well. But if their living conditions become too crowded, their behavior and even their health change obviously. They can not sleep and eat well, and signs of fear and worry become clear. The more crowded they are, and more they tend to bite each other and even kill each other. Thus, for rats, populations and violence are directly related. Is this a natural law for human society as well? Is enough space not only satisfactory, but necessary for human survival? These are interesting questions.
2017届高考英语外研版一轮复习课时作业：必修1 Module1《My First Day at Senior High》（含答案）
2017届高考英语外研版一轮复习课时作业：必修4 Module1《Life in the Future》（含答案）
2017届重庆市高考英语一轮复习阅读理解选编精练：120（含解析）
2017届高考英语外研版一轮复习课时作业：必修2 Module3《Music》（含答案）
2017届高考英语外研版一轮复习课时作业：必修5 Module6《Animals in Danger》（含答案）
2017届高考英语外研版一轮复习课时作业：必修2 Module5《Newspapers and Magazines》（含答案）
2017届重庆市高考英语一轮复习阅读理解选编精练：121（含解析）
2017届高考英语外研版一轮复习课时作业：必修1 Module5《A Lesson in a Lab》（含答案）
2017届高考英语外研版一轮复习课时作业：必修2 Module6《Films and TV Programmes》（含答案）
2017届高考英语外研版一轮复习课时作业：必修3 Module2《Developing and Developed Countries》（含答案）
2017届高考英语外研版一轮复习课时作业：必修5 Module3《Adventure in Literature and the Cinema》（含答案）
2017届高考英语外研版一轮复习课时作业：选修7 Module3《Literature》（含答案）
2017届重庆市高考英语一轮复习阅读理解选编精练：130（含解析）
2017届重庆市高考英语一轮复习阅读理解选编精练：123（含解析）
2017届高考英语外研版一轮复习课时作业：必修3 Module6《Old and New》（含答案）
2017届重庆市高考英语一轮复习阅读理解选编精练：129（含解析）
2017届高考英语外研版一轮复习课时作业：必修3 Module1《Europe》（含答案）
2017届高考英语外研版一轮复习课时作业：必修3 Module5《Great People and Great Inventions of Ancient China》（含答案）
2017届高考英语外研版一轮复习课时作业：必修5 Module2《A Job Worth Doing》（含答案）
2017届高考英语外研版一轮复习课时作业：选修6 Module5《Cloning》（含答案）
2017届重庆市高考英语一轮复习阅读理解选编精练：125（含解析）
2017届高考英语外研版一轮复习课时作业：必修3 Module4《Sandstorms in Asia》（含答案）
2017届高考英语外研版一轮复习课时作业：必修2 Module1《Our Body and Healthy Habits》（含答案）
2017届高考英语外研版一轮复习课时作业：必修2 Module4《Fine Arts—Western, Chinese and Pop Arts》（含答案）
2017届高考英语外研版一轮复习课时作业：必修1 Module3《My First Ride on a Train》（含答案）
2017届高考英语外研版一轮复习课时作业：必修4 Module6《Unexplained Mysteries of the Natural World》（含答案）
2017届高考英语外研版一轮复习课时作业：选修7 Module1《Basketball》（含答案）
2017届高考英语外研版一轮复习课时作业：必修4 Module3《Body Language and Non—verbal Communication》（含答案）
2017届重庆市高考英语一轮复习阅读理解选编精练：127（含解析）
2017届高考英语外研版一轮复习课时作业：必修1 Module2《My New Teachers》（含答案）