2021年职称英语考试理工C真题(4)

1、职称英语考试理工C真题(4) xx年职称英语考试理工C真题 Hansen found soots effect on snow albedo(反照率), which _y be contributing to trends toward early springs in the Northern Hemisphere, such as thinninbg Arctic sea i _ and melting glaciers per _frost. Soot also is believed to play a role in changes in the atmosphere above t

2、he o _ans and land. Black carbon redu _s the amount of energy reflected by snow back into spa _, thus heading the snow su _ _ more than if there were no black carbon, Hansen said. Soots increased absorption of solar energy is especially effetive in warming the worlds cli _te. This forcing is unusual

3、ly effective, causing twi _ as much global warming as a carbon-dioxide forcing of the same _gnitude. Hansen noted. Hansen cautioned, although the role of soot in altering global cli _te is substantial, it does not alter the fact that greenhouse gases are the pri _ry cause of cli _te warming during t

4、he past _ntury. Such gases are expected to bi the largest cli _te forcing for the rest of the _ntury. The researchers found that observed warming in the Northern Hermisphere was large in the winter and spring at middle and high latitudes. These observations were coherent with the researchers cli _te

5、 model situations, which showed some of the largest warming effects ourred when there were heavy snow cover and sufficient sunlight. 36.【题干】Which of the following statements of soot is NOT true? A.It absorbs suns heat. B.It is responsible for cli _te change. C.It reflects sunlight. D.It _y aount for

6、 a quarter of global warming over the past _ntury. 37.【题干】Which of the following areas shows a greater warming effect? A.I _ sea areas. B.Areas with black carbon. C.Areas covered with white snow. D.Melting glaciers. 38.【题干】This forcing in Paragraph 5 refers to? A.suns heating on snow su _ _. B.soots

7、 increased absorption of solar energy. C.carbon-dioxides warming effect. D.snows increased reflection of sunlight. 39.【题干】What is the _in cause of cli _te warming during the past _ntury? A.Soot. B.Snow. C.Greenhouse gases. D.Wind. 40.【题干】The largest warming effects happened in the Northern Hemispher

8、e with A.X sea i _ and insufficient sunlight. B.light snow cover and sufficient sunlight. C.heavy snow cover and sufficient sunlight. D.thick sea i _ and insufficient sunlight. A Record-Breaking Rover NASAs Mars rover Opportunity has boldly gone where no rover has gone beforeat least in terms of dis

9、tan _. Sin _ arriving on the Red Pla in xx, Opportunity has traveled 25.01 miles, more than any other wheeled vehicle has on another&nnbsp;world. On July 27, after years of moving about on Martian ground, the golf-cart-sized Opportunity had driven more than 24 miles, beating the previous record hold

10、era Soviet rover sent to the moon in 1973. “This is so re _rkable considering Opportunity was intended to drive about 1 kilometer and was never designed for distan _,” says John Callas, the Mars Exploration Rover Project Manager. He works at NASAs Jet Propulsion Laboratory in Pasadena, California. “

11、But what is really importantly is not how _ny miles the rover has racked up, but how much exploration and discovery we have aomplished over that distan _.” OPPORTUNITY The solar-powered Opportunity and its twin rover, Spirit, landed on Mars 10 years ago on a mission expected to last 3 months. The ob

12、jective of the rovers was to help scientists learn more about the pla and to search for signs of life，such as the possible presen _ of water. Spirit stopped municating with Earth in March xx, a few months after it got stuck in a sand pit. But Opportunity has continued to collect and _yze Martian soi

13、l and rocks. During its mission, Opportunity has captured, and sent back to Earth, some 187,000 panoramic and microscopic i _ges of Mars with its cameras. It has also provided scientists with data on the plas atmosphere, soil, rocks, and terrain. MARATHON ROVER The rover doesnt seem to be ready to s

14、top just yet. If Opportunity can continue on, it will reach another _jor investigation site when its odometer hits 26.2 miles. Scientists call this site Marathon Valley, because when the rover reaches the area, it will have traveled the same distan _ as the length of a _rathon sin _ its arrival on Mars. Researchers believe t