为了提高广大学生的英语水平，提高英语专业学生的专四通过率，特提供以下英语长难句，供大家练习参考：
1. With a team of colleagues at Tokyo National University, he set about measuring brain volumes of a thousand people of different ages and varying occupations.
2. Computer technology enabled the researchers to obtain precise measurements of the volume of the front and side sections of the brain, which relate to intellect (智能) and emotion, and determine the human character.
3. Contraction of front and side parts as cells die off was observed in some subjects in their thirties, but it was still not evident in some sixty and seventy-year-olds.
4. The findings show in general terms that contraction of the brain begins sooner in people in the country than in the towns.
5. White collar workers doing routine work in government offices are, however, as likely to have shrinking brains as the farm worker, bus driver and shop assistant.
参考答案：
1、在东京国立大学的同事们的帮助下，他开始对一千来自不同职业的人群进行了大脑体积的测量。
2、计算机技术帮助研究人员获得人脑前部和侧部的准确体积，这是与人的智能和情绪有关的部分，而且也决定人的性格特点。
3、有的人(大脑)前部和侧部的收缩——随着细胞的死亡——在三十多岁时就能被观察到了，但是也有些人直到六七岁依然不明显。
4、研究结果表明在农村的人大脑收缩基本上比城市里的人要早。
5、在政府部门从事简单重复工作的白领也像农场工人、公共汽车司机和商店职员一样大脑细胞容易收缩。