3. 沙漠化

[2.图画/图表描述段]As is shown in the picture, we can see clearly the relation ship between people and desert. In the left hand picture, people are fleeing from greedy sand hills because they cut down all the trees. The caption reads, ”As the sand advances, we retreat.” In the right hand picture, the people have returned carrying tools, water, and young trees to plant the land again. The caption reads: “As we advance, the sand retreats. ”

[5.意义阐述段]It seems to me that the cartoonist is sending a message about the importance of trees in water and soil conservation and the need for everyone to fight against the danger of the desertification. In fact, what he is saying is that the sand hills will drive away from the land if we do fight against the sand. If we let this situation continue as it is , our environment will suffer a great destruction.

[10.建议措施段]The best way to fight back against the greedy desert in made clear in the second picture. There the local people are actively setting about the task of planting trees to reclaim the land and make it fertile. The fact that there are three people in the picture, each with a different job suggests that working together is the key to success in the battle against soil erosion.

4. 商业捕鱼（00年真题） A Brief History of World Commercial Fishing

[2.图表描述段] As is shown in the pictures ,with the increase of commercial fishing ,the number of fishes dramatically(sharply) decreased .In one pictures ,there were various kinds of fish and only one fishing-boat in 1900 .On the contrary ,in1995 there was only one fish ,with many fishing-boats.

[5.意义阐述段] The purpose of this picture is to show us that due (great enough) attention has to be paid to the decrease (decline) of ocean resources .Owing to over-fishing the number of fishes has obviously dropped .If we let this situation go (continue) as it is ,we do not know where fish will be in the future .By that time ,our environment will suffer a great destruction .

[10.建议措施段] Therefore ,it is imperative for us to take drastic (effective) measures .For one thing ,we should appeal to our authorities to make strict laws to control commercial fishing .For another ,we should enhance(imperative arouse) the awareness of people that the ocean resources are very vital to us .Only in this way can we protect our ocean resources .Also I believe that we humans can overcome this difficulty ,and we will have a brighter future .

第二部分 图表作文（三篇）

5. 人口增长对野生动物的影响（99年真题）

[2.图画/图表描述段] From these graphs, we can draw a conclusion that, with the growth of human population, the number of species has decreased rapidly in America, and some species have even vanished from our planet.

[6.原因列军段]Why does this phenomenon appear? There are several possible reasons for this. Above all, as the human population grows rapidly, a growing number of people came to live where some wild species have been living. Then these species have to move to other places. Some of them probably can not adapt to the new environment and die. In addition, although many people look on the wildlife as their friends, some people may not think so. They catch a lot of wild animals and sell them in order to get more money. Even worse(坏)/More importantly(好), as the result（中性） /consequence（贬义）of the industry, the natural balance and the ecologic environment are destroyed. The clear cutting has become increasingly serious. So some of the wildlife become homeless and extinct.