求一篇讲睡眠质量的英语文章

many of the earth’s plants and animals have already died out, and a hundred species become endangered every day. if nothing is done, we may find ourselves alone on the earth. wild animals live in forests which are being destroyed by people. as a result, the animals are losing their habitats. without the trees, the animals are short of food. and many animals are dying out because of pollution. i suggest that measures be taken to protect wildlife. the government should keep people from destroying forests and shut down the factories which pollute rivers and air. i think more wildlife centers should also be built.