Sandstorms in Asia
as a result of =
(4)citizens wake up to an orange sky and strong winds that cover the city in a thick, brown-yellow dust.
wake up: wake up to sth:
eg: 他意識到他錯了
(5)to prevent it coming nearer, the government is planting trees.
prevent sb/sth (from) doing sth :
4.complete the sentences:
(1)掌握一門外語不是一件容易的事情。
is not an easy thing.
(2)遭遇沙塵暴是一件可怕的事。
was a terrible experience.