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：
151. The trouble is that it is extremely difficult to be sure about radiation damage –--a person may feel perfectly well, but the cells of his or her sex organs may be damaged, and this will not be discovered until the birth of deformed (畸形) children or even grandchildren.
152. In the end , only 7 out of 19 regular Cola drinkers correctly identified their brand of choice in all for trails. The diet-Cola drinkers did a little worse – only 7 of 27 identified all four sample correctly.
153. Taste is such a subjective matter that we don’t usually conduct preference tests for food.
154. It seems simple enough to distinguish between the organism and the surrounding environment and to separate forces acting on an organism into those that are internal and biological and those that are external and environmental.
155. But in actual practice this system breaks down in many ways, because the organism and the environment are constantly interacting so that the environment is modified by the orgainism and vice versa (反之亦然).
151、问题是很难明晰辐射的危险—一小我可能感受精采，但他(她)的性器官细胞可能受到损伤，而且有些直到生下畸形儿甚至是畸形孙儿才会被发现。
152、最后，只有7/19的传统可乐快乐喜爱者正确地分辩出了他们的品牌，而低糖可乐快乐喜爱者水平更差—只有7/27的人辩出了四种同化的品牌。
153、口胃是个很是主不美观的问题，所以对于食物我们一般一直行偏好测试。
154、区分四周的情形或者有机物体，以及分辩浸染于有机物的影响力是生物内部的仍是来自于外部情形的，看起来很是简单。
155、可是在现实中这套系统在良多方面失踪败了，因为有机物和情形在不竭彼此浸染，所以情形在不竭被有机物改削，反过来也是一样。