The pollution of the environment has become an important problem that the world has to fac

The pollution of the environment has become an important problem that the world has to face. Luckily, humans have realized it and we have been taking steps to deal with this problem. And many days have been appointed(指定).
On March 12 every year, many Chinese people plant trees because it is China’s Tree Planting Day. It first began in 1979. Different countries made different days as Tree Planting Day. Some countries’ Tree Planting Day is the same day as World Forest Day, such as France.
World Forest Day comes on March 21 every year. It was started by Spain in 1971. And the first World Forest Day was held on March 21, 1972. The purpose of World Forest Day is to encourage everyone to protect(保护) the trees because they are very important to our life.
Earth Day comes on April 22 every year. The purpose of Earth Day is to encourage people all around the world to protect the environment. It was created in America in 1970. But it wasn’t until 2009, April 22 that was named Earth Day by the UN.
Smoking is bad for our health. In order to stop people from smoking, April 7 was made as World No-Tobacco Day(世界无烟日) in 1987. The first World No-Tobacco Day began in 1988. But in 1989, it was made another day, on May 31 every year.
Day
Date
Purpose
China’s Tree Planting Day
March 12
【小题1】
【小题2】
March 21
To encourage everyone to protect the trees.
Earth Day
April 22
【小题3】
World No-Tobacco Day
【小题4】
To stop people from smoking.
To plant trees.

(答案→)To plant trees. 解析：短文大意：对环境的污染已成为世界面临的一个重要问题。幸运的是，人类已经意识到，我们已经采取措施来解决这个问题。每年的三月十二日，许多中国人种树，因为这是中国的植树节。世界林业节是在每年的三月二十一日。地球日是在每年的四月二十二日。世界无烟日是每年的五月三十一日。【小题1】根据第二段首句On March 12 every year, many Chinese people plant trees because it is China’s Tree Planting Day.可知该填写To plant trees.【小题2】根据第三段首句World Forest Day comes on March 21 every year.可知该填写World Forest Day【小题3】根据第四段第二句The purpose of Earth Day is to encourage people all around the world to protect the environment. 可知该填写To encourage people all around the world to protect the environment.【小题4】根据短文最后But in 1989, it was made another day, on May 31 every year. 可知该填写May 31

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