Some people imagine to leave this fearful world， only to come down to earth. Scientists tell us that of all the stars known in the vast universe， the earth is the only planet on which human beings can survive. But now we are facing the risky problems concerning our existence on earth.
Worldwide environmental deterioration （惡化） is alarming. The earth is plagued with population explosion， energy crisis， lack of food， housing problem and environmental pollution. During the process of industrialization， human beings are pursuing crazily the benefits from the economic growth. Now we have suffered from the results. The overuse of natural resources has affected ecosystem（生態(tài)系統(tǒng)） on earth.
Everyone loves his private home， whereas not everyone treasures our “public” home the earth. There would be no point in beautifying a private home if we no longer had a decent （合適的） planet to put it on. Protecting the earth is protecting ourselves. Don't change our only homeland into our last graveyard（墳?zāi)梗?East， West， “earth” is best， because it is Noah's ark for human beings.
核心剖析 引用了《圣經(jīng)》中“諾亞方舟”（Noah's ark）的典故。用格言、諺語或習(xí)語等富有哲理性的語言總結(jié)全文，既言簡(jiǎn)意賅又有更強(qiáng)的說服力。此種結(jié)尾方法往往給人以語言平淡而情感強(qiáng)烈的印象，使人讀來頓生感悟，給人以啟迪和思考。
Worldwide environmental deterioration （惡化） is alarming. The earth is plagued with population explosion， energy crisis， lack of food， housing problem and environmental pollution. During the process of industrialization， human beings are pursuing crazily the benefits from the economic growth. Now we have suffered from the results. The overuse of natural resources has affected ecosystem（生態(tài)系統(tǒng)） on earth.
Everyone loves his private home， whereas not everyone treasures our “public” home the earth. There would be no point in beautifying a private home if we no longer had a decent （合適的） planet to put it on. Protecting the earth is protecting ourselves. Don't change our only homeland into our last graveyard（墳?zāi)梗?East， West， “earth” is best， because it is Noah's ark for human beings.
核心剖析 引用了《圣經(jīng)》中“諾亞方舟”（Noah's ark）的典故。用格言、諺語或習(xí)語等富有哲理性的語言總結(jié)全文，既言簡(jiǎn)意賅又有更強(qiáng)的說服力。此種結(jié)尾方法往往給人以語言平淡而情感強(qiáng)烈的印象，使人讀來頓生感悟，給人以啟迪和思考。