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2. A teacher who continually draws attention to rewards or who hands out high grades for ordinary achievement ends up with uninspired students, Eisenberger holds.
3. In earlier grades, the use of so-called token economics, in which students handle challenging problems and receive performance based points towards, shows promise in raising effort and creativity, the Delaware psychologist claims.
4. The cable was laid, but not until 1866 was the connection made permanent and reliable.
5. After monitoring production of the Jarvik-7, and reviewing its effects on the 150 or so patients (most of whom got the device as a temporary measure) the U.S. Food and Drug Administration concluded that the machine was doing more to endanger lives than to save them.
6. The reader puts questions, as it were, to the text and gets answers.
7. Britain almost more than any other country in the world must seriously face the problem of building upwards, that is to say, of accommodating a considerable proportion of its population in high blocks of flats.
8. In the past our own blocks of flats have been associated with the lower-income groups and they have lacked the obvious provisions, such as central heating, constant hot water supply, electrically operated lifts from top to bottom, and so on, as easy facilities for disposal of dust and rubbish and storage places for baby carriages on the ground floor, playgrounds for children on the top of the buildings, and drying grounds for washing.
9. Man, however much he may like to pretend the contrary, is part of nature. Can he escape a pollution that is now so thoroughly distributed throughout our world?
10. We know that even single exposures to these chemicals, if the amount is large enough, can cause extremely severe poisoning.
句子解析
1 他们的绘图板上钉着改进的防震楼的设计蓝图。2. 艾森伯格认为：如果一个老师不断地要求学生把注意力放在奖励上，并对一般的成绩也大方的送以高分，最终只能培养出没有创造力的学生。
3. 德拉华大学心理学家指出：对小学生运用所谓的象征性奖励制度，即学生解决一定要动脑筋才能解决的问题，同时根据表现的好坏得到一定的分数，直到获得宝贵的奖赏，这有望使学生更加努力，更好发挥创造性。
4. 海底电缆铺好了，但是直到1866年这条通讯线路才最终完成并可靠的运行。
5. 美国食品和药物管理局对贾维克7号的生产过程进行观察，并审阅它对大约150人(大多数人士临时使用)的影响后，得出结论，认为贾维克7号对生命的危害大于其救命的作用。
6. 读者向本文提问并得到答案，过去就是如此。
7. 英国和世界上几乎任何其他国家相比，都必须更加严峻地面对建筑物向高空发展的问题，即给其相当多的人口提供高层公寓的问题。
8. 从前我们的公寓都是低薪阶层居住，缺少应有的方便设施，如暖气，不间断的热水供应，从顶层到底层的电梯等等，以及细微但重要的东西，如一层处理尘土与垃圾的方便设备和婴儿车存放地，顶层小孩们的游乐场和衣服的晾衣晒场地。
9. 不管人类如何做相反的假装，他仍旧是自然的一部分。它能逃避遍布世界的污染吗?
10. 我们知道，即使是一次性的受到大量杀虫剂的污染，也可以引起其严重的中毒。
