图画描述了很多游人在游玩和照相，在天安门广场游玩时，在吐口香糖，乱扔废弃物，广场上充满了污渍

As is vividly depicted in the picture, thougsands of tourists strolled on the Tiananmen Square,busily taking photos and enjoed themselves freely.The most striking feature that impresses me deeply is that unbelievably, those people threw away the chewed gum and the smoked cigarette . Recently the phenomenon that the tourists destroyed the environment seriously has aroused great concern and should be given enough consideration. This phenomenon of destroying the environment should be condemned severely or made illegal. There is no doubt that its symbolic meaning subtly conveyed should be given deep consideration.

中间段落从两方面论证问题的危害，并举例论证，预测 危害的趋势

To account for the above-mentioned phenomenon, several effects have been put forward. To begin with, destroying the environment not only results in the loss of sanitary maintainance but also does harm to the indignity of our national images internationally since Tiananmen Square as the most high-profile site represents the face-lift of China . In addition, some unhealthy or even poisonous wates will cause the peole to

eathe the harmful air ,which is a threatening situation we are unwilling to see. No better illustration of this idea can be thought than the example mentioned below . According to a survey made by China Daily, 63.93% of young people who have once dropped wastes into the places of interests do take it seriously. If we cannot take useful means, we may not control this trend, and some undesirable results may come out unexpectedly, we will see the gloomy future of our heritage left by our ancesters.

最后一段要强调解决问题，谈的两点建议通常是提高人们的意识，加强执法;

From what have been discussed above, it is therefore, necessary that some effective measures are taken to prevent the tourist damaging the environment. On the one hand, we should be sensible to strengthen the enforcement of the laws to protect the cultural relics. On the other hand, it is demanding for us to keep people aware of the importance of saving the relcs out of the evil hands of destructioin. However, it is easier said than done. Practice is the most important factor. Only when you attention to it can you see a colorful and harmonious future better sooner or later.