根据提示补全下列短语
1.drop ________ 下降
2.________ a result of 由于......的原因
3.due ________ 由于
4.________ the form of 以......的形式
5.set ________ 建立
6.________ conclusion 总之
7.benefit ________ 从......中收益
8.start ________ 以......开始
【答案】 1.off 2.as 3.to 4.in 5.up 6.in
7.from 8.with
根据提示补全下列教材原句
1.This marked the beginning of the"space race"between the US and the USSR,which ended ________________________ in 1969.
它标志着美国和前苏联"太空竞赛"的开始,最终以美国于1969年将人送到月球而告终。
2.It was launched in 1990 ________ astronomers could observe space without the Earth's atmosphere being a barrier.
它于1990年发射升空,以便天文学家可以不受地球大气层阻碍观察太空。
3.The International Space Station is now being built in the Earth's orbit and soon will be working as a permanent manned scientific base,so as to research life in space and provide a stepping stone ________ future manned flights are sent out.
国际空间站的建设工作正在地球轨道上进行,很快将成为永久的载人科学基地,以便研究太空的生命并为未来的载人飞行做准备。
4.Due to China's rapidly developing space programme,this could be sooner ________________ later.