As is subtly portrayed in the cartoon, two tourists are sightseeing on a small boat while discarding their picnic leftovers casually into a lake.
正如图中巧妙描绘的那样，两名游客正在一艘小船上观光，同时把野餐的剩余垃圾随意地丢入湖中。
① 万能引入：As is subtly portrayed in the cartoon，也可以用symbolically代替subtly;或者用depicted、illustrated代替portrayed，尽量不用shown。
② two tourists are sightseeing on a small boat：用进行时句式描绘图片sb is doing sth.同时加入一些时间或地点状语丰满句子以及图画描绘内容，如on a small boat。巧用动词sightsee观光。
③ while discarding their picnic leftovers casually into a lake：利用while doing sth.继续丰富图画内容。巧用discard sth.描绘动作和casually丰富词数。
Unfortunately, the lake is already filled with litter and teeming with flowing rubbish like plastic containers, banana peels, food wrappings, and so on.
不幸的是，湖中已经堆满和漂浮着各种垃圾，如塑料盒、香蕉皮、食品包装等等。
① 连接词：Unfortunately，常见的描图连接词还有Undoubtedly、At the same time、In the first/second photograph、On the contrary。
② 好词：be filled with、be teeming with。
③ like plastic containers, banana peels, food wrappings, and so on：尽可能描画图中的内容，一是凑字数，二是展现词汇量，形成亮点。
And below the drawing, there is a caption which says: "after" the travel or "me" in the travel.
在图画的下方，有个小标题写着：旅程之“余”
① 万能首段结尾：And below the drawing, there is a caption which says，图画有标题则一定要写，达到描图的完整性。
From the portrayal, we can conclude that the painter wants to convey such a message:a good many scenic spots are flooded with visitors, who spoil the beauty of nature by creating and leaving behind God-knows-how-much trash.
① 凑字数：将自己的观点藏于图画作者的观点，可以作为模板“From the portrayal, we can conclude that the painter wants to convey such a message:“。
② 亮点：a good many 许多，A be flooded with B在A处充满了B，spoil sth 破坏
③ 精彩句式：sb do sth,who/which do sth by doing sth. 这个句式模仿性和灵活性极高，其中的sb、do、sth、doing均可以变换各种形式，其中还可以用插入各种定语(如a good many、God-knows-how-much)、状语(如添加casually、excessively)、并列(如creating and leaving)、主被动(如visitors flood into scenic spots变为 scenic spots are flooded with visitors)。
On the one hand, tourism, as a multibillion-dollar business, is booming everywhere. Some people , under the belief that tourism serves as an engine of economic growth, seem to ignore its negative effects on the environment.
② 写一个主题词(tourism)的积极面：旅游业在各地蓬勃发展，论证观点为有的人把旅游业当作经济引擎。
③ 亮点1：句式sth, as a multibillion-dollar business, is booming everywhere.可以把旅游业换成其他行业，everywhere可以换成for many years(很多年了)/in any field(在各种领域)/in all walks of life(在各行各业)
④ 亮点2：under the belief that引导定语从句修饰some people,可以替代think/hold the view这些低级表达。句式Some people , under the belief that sth serves as an engine of economic growth, seem to ignore its negative effects on the XXX.将有下划线的地方作合理替换，句式高级且很凑字数。
Nevertheless , these are not concerns that we can shrug off lightly.
然后，我们必须充分关注这一问题。
① 转折过渡：进行正反论证时的过渡句，没有表达任何实际意思，所以可以无脑用在正反论证中间，凑字数且不低俗。
On the other hand, tourism has exerted great pressure on the environment we are living in: our water is polluted, our ecological system is disturbed, and our natural resources have been excessively used.
Undoubtedly, tourism cannot be banned in any country，as it does help to shore up the economy in places which have few sources of income. However, the main point is that the unchecked growth of the travel business may render the development of an economy unsustainable. Hence , it is high time that we enhanced people's awareness to rectify this by taking environmental protection into consideration.
① 连接词：Undoubtedly、Hence、In my opinion/It is my view that、Accordingly,这些连接词可以引出总结句。
② 总结句：旅游业有助于经济(正面)+旅游业使经济发展不可持续(负面)，总结呼应了第二段旅游业发展经济也破坏环境。
③ 亮点1：句式sth cannot be banned in any country，as it does help to shore up the economy in places which have few sources of income. 合理修改或增删下划线处。
④ 亮点2：短语the unchecked growth of sth, sth毫无节制的发展、render the development of sth unsustainable,使得sth的发展不可持续、enhance people’s awareness提高人们的意识、take sth into full consideration充分考虑sth；前文tourism出场次数过多，结尾段可以换travel business。
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