第1个回答 2012-06-15
1 As we all know,the environment is very important for us,so we must take good care of it.Then,we shouldn't put waste water into the river and throw rubbish anywhere,Also we can plant trees to contol the climate to protect our earth
2 Our earth is covered with blue water and green trees that looks very beautiful and important for human beings
3 Don't thow rubbish into angplace but dusbin and plant green plants
4 The blue sky and white cloud make good sights for us.And when we are tired or sad,it is a good way to improve our feelings