3、人口增长类
模板1：
The picture depicts a scene in which_______. The scene is presented in an artistic and ironic manner. Crowds of people are crammed in_______. Further examination reveals that_______.
Apparently, the picture symbolizes that humans, with such a huge population, may one day suffer from the exhaustion of earth resources. Take_______for example. Given the fact that_______, we find that_______. To make it worse, .
If the conflict between population boom and shortage of resources is not properly controlled, we have every reason to hold a pessimistic perspective towards human’s future on Earth. Perhaps eventually we would face the situation suggested by the picture, that is, . Accordingly, I strongly recommend that the whole globe launch aggressive programs to address this fatal contradiction. （参见范文3）
模板2：
Basically, what we see in this cartoon is_______. The_______interestingly echos the_______. while we can imagine_______.
We can deduce from this picture that the artist is trying to attract our attention to the present exploding world population. The striking point is that_______. As a result, . On the contrary, .
The simple picture is a wake-up call for the whole of human race. . Hence, mankind should cooperate worldwide to control population by effective measures, in order to secure the prosperity of our future on this planet.
4、环境保护类
模板1：
This is a very interesting piece of cartoon, in_______thanks to_______. Hence, .
Though being a little exaggerating, the cartoon illuminates a serious fact that_______, and for that matter, . A recent report also supported this view by_______. On the contrary, we are sad to perceive that_______.
Therefore, in my opinion, it is already high time for the whole world to form a solid cooperation fighting against_______, because not a single government or person can be exempt from its harm. A series of down-to-earth measures need to be urgently implemented to control_______.（本文来自作文地带）
模板2：
Nowadays, lots of people have the illusion that_______. Just as what is shown in the picture, .
This is a very serious social problem. Compared with other countries, China_______. If everybody behaves in this way, it would be far beyond the country’s capacity to_______. Moreover, it was reported that_______. Meanwhile, . Also, .
Though_______, it is never the only way. What’s important, to solve these problems depends largely on our responsibility for society and environment. If the sense of responsibility is greatly aroused, the achievement of harmony between man and the environment will not be far away. （请访问我们网站：http://www.liuxuepaper.com/）
