英语·选修6(人教版)
美文欣赏
greenhouse gases and environmental protection
with the development of economy，naturally more and more energy is needed.as a result, more and more greenhouse gases are being trapped in the air due to human activity.
and there is no doubt that the greenhouse gases，which is considered to be one of the greatest causes of global warming，has harmful effects.worse still，it causes the sea level to rise and many natural disasters to strike.so everyone should take effective measures to save our planet，the earth, especially it's every one's duty to form the habit of saving energy in our daily life.only in this way can individuals together make a real difference to protecting our environment.
课文助手
一、请将课文“the earth is becoming warmer—but
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