v. to destroy the pleasure, interest, or beauty of something
Bad weather can spoil people’s outdoor plans.
goal
n. something that you are trying to do
Sometimes, the goal is to prevent rain from spoiling an event.
prevent A from B
v. to make not do something
Sometimes, the goal is to prevent rain from spoiling an event.
official
n. a person who has a position of authority in a government
Chinese officials wanted the Beijing Olympics to be rain-free because the stadium had no roof.
holiday
n. a special day of celebration
In 2016, Russian scientists wanted to prevent rain on the May Day holiday.
shine
v. to give off bright light
In both countries, they seeded clouds before the big events so the sun would shine at the right time.
thin
adj. not thick, not fat
Sometimes there are no clouds, or the clouds are too thin.
outdoor
adj. located outside a building
Bad weather can spoil people’s outdoor plans.
damage
n. harm or injury
More importantly, too much or too little rain often causes huge damage and loss of life.
loss
n. failure to keep
More importantly, too much or too little rain often causes huge damage and loss of life.
controlling
n. the action to make decisions about how something is managed
So, scientists have been testing ways of controlling the weather.
region
n. a large area
What if scientists want to make it rain in a dry region?
select
v. to choose
First, they select the place and time.
spray
v. to sprinkle lightly, as with drops of water
Then, using airplanes, they spray small pieces of material such as dry ice into clouds.
seed
v. to scatter or spread seeds on the ground
In 1947, American scientists seeded clouds to help put out a forest fire.
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