1、Test 22D 阅读理解One problem may be the method of landing back on the Earth.The balloonmoves back down from space until it falls down in the sea.Passengers,spacemen,capsule and balloon are then gotten back by ship.Now Neptune faces competition from the Stratollite,a balloon being developedby a company c
2、alled World View Enterprises,while the super-rich Richard Branson,Jeff Bezos and Elon Musk are all pouring money into developing business spaceflying machines.The advantage of the balloon is that it will be cheaper than a spaceplane or rocket.Space travel may soon be a reality(现实),but how visitors get there is still a veryopen question.返回地球的方法可能会是一个问题。气球从太空向下向地球移动，直至落入海中。然后，乘客、宇航员、太空舱和气球被船运回。现在，“海王星”面临着来自 Stratollite 的竞争，这是一家名为“World ViewEnterprises”的公司正在开发的气球，而超级富豪 Richard Branson、Jeff Bezos 和Elon Musk 则都在为开发商业太空飞行器倾注资金。气球的优势在于，它将比航天飞机或火箭更便宜。太空旅行可能很快就会成为现实，但游客如何到达太空仍然是一个非常开放的问题。
