职称英语B2021年职称英语综合类B级考试补全短文专项练习及答案（一）.doc

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1、职称英语B_2021年职称英语综合类B级考试补全短文专项练习及答案（一）20_年职称英语综合类B级考试补全短文专项练习（一）阅读下面的短文，每一篇文章中有 5处填空，文章后面有 6组文字，请根据文章的内容选择 5组文字，将其分别放回文章原有的位置，以恢复文章的原貌。A Record-Breaking RoverNASAs Mars rover Opportunity has boldly gone where no rover has gone beforeat least in terms of distance._1_On July 27, after years of moving ab

2、out on Martian ground, the golf-cart-sized Opportunity had driven more than 24 miles, beating the previous record holdera Soviet rover sent to the moon in 1973.“This is so remarkable considering Opportunity was intended to drive about 1 kilometer and was never designed for distance,” says John Calla

3、s, the Mars E_ploration Rover Project Manager._2_“But what is really importantly is not how many miles the rover has racked up, but how much e_ploration and discovery we have accomplished over that distance.”OPPORTUNITYThe solar-powered Opportunity and its twin rover, Spirit, landed on Mars 10 years

4、 ago on a mission e_pected to last 3 months._3_Spirit stopped communicating with Earth in March 2021, a few months after it got stuck in a sand pit.But Opportunity has continued to collect and analyze Martian soil and rocks.During its mission, Opportunity has captured, and sent back to Earth, some 1

5、87,000 panoramic and microscopic images of Mars with its cameras._4_MARATHON ROVERThe rover doesnt seem to be ready to stop just yet.If Opportunity can continue on, it will reach another major investigation site when its odometer hits 26.2 miles._5_Researchers believe that clay minerals e_posed near

6、 Marathon Valley could hold clues to Marss ancient environment1.Opportunitys continuing travels will also help researchers as they plan for an eventual human mission to the Red Planet.词汇：Mars rover n.火星车panoramic adj.全景的odometer n.里程计rack up v.积累microscopic adj.微观的练习：AIt has also provided scientists

7、 with data on the planets atmosphere, soil, rocks, and terrain.BHe works at NASAs Jet Propulsion Laboratory in Pasadena, California.CScientists call this site Marathon Valley, because when the rover reaches the area, it will have traveled the same distance as the length of a marathon since its arriv

8、al on Mars.DOpportunity has been working on Mars since January 20_4.EThe objective of the rovers was to help scientists learn more about the planet and to search for signs of life，such as the possible presence of water.FSince arriving on the Red Planet in 20_4, Opportunity has traveled 25.01 miles, more than any other wheeled vehicle has on another world.第 4 页 共 4 页