寫一篇文章，在下面的漫畫中傳達信息，并附上你的評論。

單詞限制：大約200個單詞

祖上以打獵為生

爺爺以賣上等木材為生

父親以賣劈柴和柴墩為生

兒子以賣根雕原料為生

孫子以賣黃沙為生

Direction:

A.Write an essay that conveys the information in the following cartoon accoMPAnied by your comments.

B.Word Limit:about 200 words

Hunted for hunting

Grandpa lived on top grade wood.

Father sells wood and firewood for life.

Son sells raw materials for root carving.

Sun Tzu lives on selling yellow sand.

Example:Preserving Natural Resources

Through the changes in the ways of making a living in a family over several generations,the cartoon aims at sounding a warning against man's wasteful use of natural resources and emphasizing the urgent need to preserve these resources.

Ever since man appeared on the earth,man's survival has been heavily relied on nature.Almost everything we use in our everyday life comes from nature,ranging from the food we eat,the water we drink,to the wood which is turned into furiture.With the development of technology and population growth,the amount and range of materials used has increased at an alarming rate.However,natural resources are not inexhaustible.Some reserves are already on the brink of exhaustion and there is no hope of replacing them.The widespread water shortage is an example in point.If man continued to squander natural resources with no thought for the future,the later generations would end up selling sand,as is the case in the cartoon,and the whole world would be in a mess.

Time is running out.It is up to us to take effective measures before the situation gets out of hand.

參考范文：

保護自然資源

這幅漫畫通過幾代人的家庭生活方式的改變，旨在警告人們不要浪費自然資源，并強調迫切需要保護這些資源。

自從人類出現在地球上，人類的生存就一直依賴于大自然。我們日常生活中所用的幾乎所有東西都來自大自然，從我們吃的食物、喝的水，到變成燃料的木材。隨著科技的發(fā)展和人口的增長，所用材料的數量和范圍以驚人的速度增加。然而，自然資源并不是取之不盡用之不竭的。一些儲備已經瀕臨枯竭，沒有希望取代它們。普遍的缺水就是一個很好的例子。如果人類繼續(xù)揮霍自然資源，不考慮未來，后代將最終像漫畫中那樣出售沙子，整個世界將陷入一團糟。

時間不多了。在形勢失控之前，我們應該采取有效措施。