全國英語等級考試PETS－5精選試題（3）

1、姓名：_ 班級：_ 學(xué)號：_-密-封 -線- 全國英語等級考試pets5精選試題（3）考試時間：120分鐘 考試總分：100分題號一二三四五總分分數(shù)遵守考場紀律，維護知識尊嚴，杜絕違紀行為，確?？荚嚱Y(jié)果公正。a robotic caterpillar can crawl by a pair of rubber rodsbwhen a caterpillar moves，the magnetic field movies backwards along itcthe environment couldnt influence a robotic caterpillars guts，which a

2、re wrapped in a capsuledcrawling is very stable and efficient，and when it moves，only a few elements are needed57according to this passage，which is not true about the construction of the robotic caterpillar?aa robotic caterpillar is made from a series of rubber capsules filled with a magneti fluidbir

3、on particles，water，and a detergentlike surfactant form a magnetic fluidceach capsule filled with a magnetic fluid is linked to the next by a pair of rubber rodsdin order to keep stable condition，the caterpillars guts are wrapped in a clear，flexible polymer tube58the meaning of the word“peristalsis”i

4、n paragraph 3 is similar to_aswimmingbflyingccrawlingdwalking59comparing the robotic caterpillar and the other robots，which of the following is not true?aa smooth surface is indispensable to biped robots and wheeled robotsbflying robots are very inconvenient when moving，because they have too many mo

5、ving partscthe robotic caterpillar only has rubber capsules filled with a magnetic fluiddits incapable for wheeled robots to locate trapped people because they are impossible to miniaturize60the passage is mainly about_awhy a robotic caterpillar call find trapped peoplebhow a robotic caterpillar wor

6、kscthe instruction of the magnetic caterpillardhow a robotic caterpillar crawlstext 2短文賞析困在砂礫中的地震幸存者將來可能會被日本秋田縣立大學(xué)的saga發(fā)明的一種新型的履帶裝置機器人拯救。它依靠磁場驅(qū)動穿越細小砂礫，裝備了燈、照相機，以及傳感器等設(shè)備。這種履帶由一系列裝滿含有鐵粒子、水和類似洗潔劑的表面活性劑的橡膠容器制造。它的移動原理是在履帶裝置的“主”容器內(nèi)，磁力液體涌向磁場，致使容器向外突出，并且使其前后部分抬起。當磁場移動到下一個容器時，第一個容器擺脫束縛，向前彈出，同時下一個容器隆起。依靠這種動力，

7、機器人不斷蠕動前進。這種機器人能耗量高，但是其穩(wěn)定性卻是很好的。答案解析56b【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，磁場會向后移動，從而使機器蟲移動。故應(yīng)選b。57c【解析】由第三段倒數(shù)第二三句“each capsule is linked to the next by a pair of rubber rods”可以得出，囊與囊之間由一對橡膠棒連接。故應(yīng)選c。58c【解析】根據(jù)第三段的“the rhythmic contraction that moves food down your intestine”可以推斷出peristalsis就相當于crawling，意思是“有節(jié)奏的蠕動”。故應(yīng)選c。59d【解析】根據(jù)文章最后一段“wheeled robots require a smooth surface and are difficult to miniaturize”，作者說輪式的機器人在救人的時候，需要一個光滑的平面，而且很難穩(wěn)定。文章并沒有說它不能救人。故應(yīng)選d。60a【解析】文章一開始就說“a r