在英语日益重要的今天，学好英语成了大多数学生的首要目标。为帮助大学生高效的学习英语。特收集以下练习：
146. The family is a co-operative enterprise for which it is difficult to lay down rules, because each family, needs to work out its own ways for solving its own problems.
147. Besides serving the indefinite needs of its native speakers, English is a language in which some of important works in science, technology, and other fields are being produced, and not always by native speakers.
148. And someone with a history of doing more rather than less will go into old age more cognitively sound than someone who has not had an active mind.
149. Perfectionists struggle over little things at the cost of something larger they work toward.
150. Men are naturally most impressed by diseases which have obvious signs, yet some of their worst enemies slowly approach them unnoticed.
146、家庭就像是一个合作式的企业一样，很难拟定统一的轨则，因为每个家庭都需要自己的怪异的解决问题的法子。
147、除了以英语为母语的人大量地使用英语外，良多主要的科学、手艺文献也是由英语写成，而且作者不仅仅是以英语为母语的人。
148、比起那些脑子不活跃的人来说，年青时喜欢尽量从事更多工作的人年迈后更有熟悉力。
149、完美主义者倾向于为了一点小事破耗比工作自己更大的价钱去完成。
150、人类自然地对于那些有较着特征的疾病有深刻的印象，然而他们最恐怖的仇敌往往在未被人注重时慢慢接近他们。