【答案】C【核心短语/词汇】spacecraft宇宙飞船【翻译】这个宇宙飞船花了多少时间到达火星?【解析】根据所给句子可知其句意是:这个宇宙飞船花了多少时间到达火星?,所以空格处要填入“到达”。get,及物动词,意思是得到,表示“到达”时要用get to; arrive, 不及物动词,“到达某地”要加介词;get to, 到达,后...
C We've landed on the moon and sent spacecraft to Mars. But how would you like to take a walk around the red planet itself, having a closer look at the rocky Marian surface from all angles?Well, for those who can't afford a rocket ship, experiences like this are now a "virtual"...
If you want your spacecraft to enter Mars orbit or to land on the surface, you add a lot of constraints to the design problem. For an orbiter, you have to consider the significant amount of propellant required for orbit insertion, while for a lander, you have to design and build a hea...
As NASA prepares to launch its MAVEN Mars orbiter Monday (Nov. 18), here's a look at the discoveries made by spacecraft circling the Red Planet over the years.
Salyut: the First Space Station Diagram of the Salyut-4 space station docked to a Soyuz spacecraft Image courtesy NASA Russia (then known as the Soviet Union) was the first to place a space station. The Salyut 1 station, which went into orbit in 1971, was actually a combination of ...
V.从方框中选择适当的句子补全对话,有一项是多余的 A. How long did it take the spacecraft to reach Mars? B. No, it hasn't. C. I don't know, but I hope so. D. I'm listening to the news. E. It's about the spacecraft going to Mars to explore it. F. There isn't any ...
解答答案:B. How soon多久以后;How far多远; How long多久; How often多久一次.根据答语中it takes months to travel to Mars by spacecraft.可知这里应该表示的是多远.故选B. 点评本题考查了how引导的疑问词组.解答时注意区分和辨别. 练习册系列答案 ...
During its mission, China's Mars probe Tianwen-1 also successfully performed an in-orbit relay communication test with the European Space Agency's (ESA) Mars Express spacecraft. "The data relay communication link verification test proved that the Tianwen-1 team and the Mars ...
18.-Could you tell us to travel from Earth to Mars by spacecraft?-It takes months.I think.( )A.how far it takesB.how often does it takeC.how long it takesD.how soon does it take
“Once Starship starts flying, the development will be very fast,” says Margarita Marinova, a former senior Mars development engineer at SpaceX. “There will be so many more people who will be able to fly things.” Those could be anything from standalone missions using Starship to ride-...