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April 22 is Earth Day. Everyone on earth should care about and protect the earth!
The earth has warmed by about 1华氏度 (1)__during___________ the past 100 years, but why and how? Maybe the earth gets warmer and warmer on its (2)_________ .But many scientists say that people are doing many things which make the earth warmer.
(3)_First_________, greenhouse effect is a very important reason for the change of the earth. People (4)_give_________ out too much energy into the air every year. It’s makes the earth warmer. Climate change is (5) _another_________ important reason. Sometimes it becomes too hot and sometimes too cold. Sometimes there is too much rain and sometimes too little.
(6)_When__________ the earth becomes warmer, there may be more rain and a rise in the sea level. It will affect the growth of plants, animals and people. On a Pacific island,100 people have to move to (7)_higher___________ ground because the sea is rising. These people can no longer live on the beach. Before that, two islands without people went underwater in 1999. Scientists said that the seas can (8)_____________ by nearly one meter by 2100.
People can affect the earth’s air, land and water. As for (9)_owner_________, we can do many things to protect the earth. For example, we can use fridges less. We can tell (10)__more__________ people about protecting the earth.
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