突然
1995年8月，当“亚洲通信卫星2号”升空不久，突然发生爆炸，而这场灾难的元凶是由太阳活动引发的高空切变风，这是由空间天气突变而引发的灾难。 空间环境中，有时呈现这种情景——太阳上的太阳风、磁层、电离层和热层中可影响空间和地面技术系统的运行和可靠性以及危及人类健康和生命的状态。科学研究表明，太阳是一个能量输出不断变化的天体，正是这些变化，才引起了高层大气和电离层状态的强烈扰动。同时，太阳有时能把百万吨带电物质，以每秒近千公里的高速度抛向地球，即发生太阳风暴，引起地球空间环境发生急剧变化。如地球磁层被压缩
1995年8月，当“亚洲通信卫星2号”升空不久，突然发生爆炸，而这场灾难的元凶是由太阳活动引发的高空切变风，这是由空间天气突变而引发的灾难。 空间环境中，有时呈现这种情景——太阳上的太阳风、磁层、电离层和热层中可影响空间和地面技术系统的运行和可靠性以及危及人类健康和生命的状态。科学研究表明，太阳是一个能量输出不断变化的天体，正是这些变化，才引起了高层大气和电离层状态的强烈扰动。同时，太阳有时能把
A fire _____ during the night and a large number of houses _____ to ashes.
A fire \_\_\_\__ during the night and a large number of houses \_\_\_\__ to ashes.
Last night a big fire _____ in the suburbs of the town, causing huge losses to the area.
Last night a big fire \_\_\_\__ in the suburbs of the town, causing huge losses to the area.
The car _____ halfway on the road, so we had to walk home.
The car \_\_\_\__ halfway on the road, so we had to walk home.
But for her mother’s sudden illness, she would never think _____ of breaking this with you.
But for her mother’s sudden illness, she would never think \_\_\_\__ of breaking this with you.
On his way home, he suddenly heard his name _____.
On his way home, he suddenly heard his name \_\_\_\__.