相关知识点: 试题来源: 解析 B。本题考查时态。“The Challenger space shuttle exploded shortly after takeoff”这句话中“exploded”是 explode 的过去式,所以是一般过去时。A 选项是一般现在时;C 选项是现在完成时;D 选项是过去进行时。反馈 收藏
【题目】挑战原版美国第一位女宇航员Sally Ride was the fist woman astronaut from the US to go into space. She flew two missionson the space shuttle. One was in August 1983, and the other was in October 1984. Both times shefew as a member of the crew of the space shuttle Challenger....
years of US' human space flight, there had never been an accident in the descent to Earth or landing. Challenger exploded just after take-off. Rescue teams scrambled to search for the remains of the crew, which included the first Israeli to fly on the shuttle, former combat pilot Col....
Space shuttle Challenger exploded just 73 seconds after liftoff on Jan. 28, 1986, changing NASA's space program forever
1. The Challenger didn’t actually explode. A cloud of fire engulfed the space shuttle just 73 seconds after liftoff, at an altitude of some 46,000 feet (14,000 meters). It looked like an explosion, the media calle...
This article discusses the environmental and human decision making factors that were associated with the launching of the Space Shuttle Challenger on January 28, 1986. Shortly after launch, the Shuttle exploded destroying the vehicle and all crew members. The cause and contributing fa...
As people all over t he wor ld wat ched on TV, NASA’s space shut t le Challenger (Fig. 1) exploded immediat ely aft er launch, and t ook lives of all 7 member s of t he cr ew. The causes wer e loss of elast icit y in an o-r ing due t o low t emper at ur e and...
FOCUS: STORM CLOUDS AT NASA NOT SINCE THE SPACE SHUTTLE CHALLENGER EXPLODED IN 1986 HAS NASA HAD SUCH A BAD YEAR. HAS THE BUDGET-CUTTING SEVERELY HAMPERED THE SPACE AGENCY, OR ARE THE PROBLEMS MERELY A STRING OF BAD LUCK? EITHER WAY, AT LEAST ONE OF THE ASTRONAUTS IS LEERY ABOUT HIS ...
英语演讲:TheSpaceShuttle"Challenger"TragedyAdd文档信息属性:F-0L2144,doc格式,正文719字。质优实惠,欢迎下载!适用:作为文章写作的参考文献,..