2016年公共英语五级考试阅读模拟练习(3)

　　1. From this passage, we can learn that_______。

　　[ A ] a robotic caterpillar can crawl by a pair of rubber rods

　　[ B ] when a caterpillar moves, the magnetic field moves backwards along it

　　[ C ] the environment couldn’t influence a robotic caterpillar’s guts, which are wrapped in a capsule

　　[ D ] crawling is very stable and efficient, and when it moves, only a few elements are needed

　　2. According to this passage, which is not true about the construction of the robotic caterpillar?

　　[ A ] A robotic caterpillar is made from a series of rubber capsules tilled with a magnetic fluid.

　　[ B ] Iron particles, water, and a detergent-like surfactant form a magnetic fluid.

　　[ C ] Each capsule filled with a magnetic fluid is linked to the next by a pair of rubber rods.

　　[ D ] In order to keep stable condition, the caterpillar’ s guts are wrapped in a clear, flexible polymer tube.

　　3. The meaning of the word “peristalsis” in Paragraph 3 is similar to_______。

　　[ A ] swimming

　　[ B ] flying

　　[ C ] crawling

　　[ D ] walking

　　4. Comparing the robotic caterpillar and the other robots, which of the following is not true?

　　[ A ] A smooth surface is indispensable to biped robots and wheeled robots.

　　[ B ] Flying robots are very inconvenient when moving, because they have too many moving parts.

　　[ C ] The robotic caterpillar only has robber capsules filled with a magnetic fluid.

　　[ D ] It’ s incapable for wheeled robots to locate trapped people because they are impossible to miniaturize.

　　5. The passage is mainly about _______。

　　[ A ] why a robotic caterpillar can find trapped people

　　[ B ] how a robotic caterpillar works

　　[ C ] the instruction of the magnetic caterpillar

　　[ D ] how a robotic caterpillar crawls

　　困在砂砾中的地震幸存者将来可能会被日本秋田县立大学的Saga发明的一种新型的履带装置机器人拯救。它依靠磁场驱动穿越细小砂砾，装备了灯、照相机，以及传感器等设备。这种履带由一系列装满含有铁粒子、水和类似洗洁剂的表面活性剂的橡胶容器制造。它的移动原理是在履带装置的“主”容器内，磁力液体涌向磁场，致使容器向外突出，并且使其前后部分抬起。当磁场移动到下一个容器时，第一个容器摆脱束缚，向前弹出，同时下一个容器隆起。依靠这种动力，机器人不断蠕动前进。这种机器人能耗量高，但是其稳定性却是很好的。

　　答案及解析

　　1.B【解析】由第四段第一句“To make the caterpillar move forwards.Saga moves a magnetic field backwards along the caterpillar.”可以看出，磁场会向后移动，从而使机器虫移动。故应选B。

　　2.C【解析】由第三段倒数第二三句“Each capsule is linked to the next by a pair of rubber rods.”可以得出，囊与囊之间由一对橡胶棒连接。故应选c。

　　3.C【解析】根据第三段的“the rhythmic contraction that moves food down your intestine”可以推断{{{peristalsis就相当于crawlin9，意思是“有节奏的蠕动”。故应选C。

　　4.D【解析】根据文章最后一段“wheeled robots require a smooth surface and are difficult to miniaturize”，作者说轮式的机器人在救人的时候，需要一个光滑的平面，而且很难稳定。文章并没有说它不能救人。故应选D。

　　5.A【解析】文章一开始就说“A robotic caterpillar that burrows its way through debris.”这种新型的机器人在瓦砾中寻找幸存者。接下来，则介绍了它的工作原理，说明它为什么能够进入砂砾中去救人。故应选A。公共英语等级考试