问题 问答题

问答题:根据设问,回答问题。

(1)牛顿力学体系的基础和表达形式分别是什么?这个体系在近代科学理论发展中的地位如何?

______________________________________________________________________________________________________________________________________________________________________________________

(2)相对论的创立者和量子论的提出者分别是谁?

___________________________________________________________________________________________

(3)工业革命时期最伟大的发明是什么?随着它的问世,在交通运输业中出现了哪些重要发明?

___________________________________________________________________________________________

(4)列举两例说明由于电气技术广泛应用,人们生活发生的巨大变化。

_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

答案

(1)基础:实验;表达形式:数学。地位:是人类对自然规律第一次进行的理论概括和总结。

(2)爱因斯坦;普朗克。

(3)蒸汽机;蒸汽轮船;蒸汽机机车。

(4)变化:电灯使城市的夜晚亮如白昼;电车为城市居民提供更加方便的出行服务;电梯使摩天大楼越建越高;电话使相隔千里如同近在咫尺;电冰箱、电熨斗、洗衣机、吸尘器的使用大大减轻了繁重的家务劳动。

问答题 简答题
单项选择题

Our ape-men forefathers had no obvious natural weapons in the struggle for (1) in the open. They had neither the powerful teeth nor the p claws of the big cats. They could not (2) with the bear, whose strength, speed and claws (3) an impressive " small fire" weaponry. They could not even defend themselves (4) running swiftly like the horses, zebras or small animals. If the ape-men had attempted to compete on those terms in the open, they would have been (5) to failure and extinction. But they were (6) with enormous concealed advantages of a kind not possessed by any of their competitors.

In the search (7) the pickings of the forest, the ape-men had (8) efficient stereoscopic vision and a sense of color that the animals of the grasslands did not (9) . The ability to see clearly at close range permitted the ape-men to study practical problems in a way that lay far (10) the reach of the original inhabitants of the grassland. Good long-distance sight was (11) another matter. Lack of long-distance vision had not been a problem for forest-dwelling apes and monkeys because the (12) the viewpoint, the greater the range of sight-so (13) they had had to do was climb a tree. Out in the open, however, this simple solution was not (14) . Climbing a hill would have helped, but in many places the ground was flat. The ape-men (15) the only possible solution. They reared up as high as possible on their hind limbs and began to walk (16) . This vital change of physical position brought about considerable disadvantages. It was extremely unstable and it meant that the already slow ape-men became (17) still. (18) , they persevered and their bone structure gradually became (19) to the new, unstable position that (20) them the name Homo erectus, upright man.

3()

A.became

B.equipped

C.posed

D.provided