推荐范文如下：

Advertisements of tobacco and those of “smoking is harmful”are often seen together. But there has been an on-going argument about whether or not tobacco should be forbidden and made illegal. I have always believed that smoking should be illegal for the following reasons.

First, smoking does great harm to human health and causes many diseases. It is reported that more than 70% of lung cancer sufferers are smokers, and the average life-span of smokers is seven years less than that of non-smokers. Moreover, it hurts not only smokers, but also the ones around the smokers. Many researchers claim that breathing “second-hand smoke” may

be even more harmful than smoking.

Second, many social problems and disasters can be attributed to smoking.For instance, many wives cannot bear their husbands’ smoking all the time,which causes many quarrels, or even divorces. Furthermore, the biggest fire disaster in China, the Daxinganling fire disaster, was caused by a burning cigarette end, and the cost of the resulting loss was unimaginable.

Last, smoking tobaccos is a main source of air pollution.A magazine said that for every cigarette smoked each day,a whole tree is needed to clean the air. In other words, smoking one less cigar every day equals planting a tree. It is a brilliant contribution to the earth we are living on. In a word, all the above demonstrate that smoking harms yourselves as well as your neighbors, pollutes the air we ourselves are breathing, and even agitates the social peace. So, in my opinion, tobacco should be strictly forbidden, and smoking should be made illegal.

重难点词汇学习：

forbidden

释义

adj.不允许的，被禁止的; 禁用的;

v.禁止( forbid的过去分词);

She was expressly forbidden to touch my papers.

已经明确禁止她动我的文件。

Photography is strictly forbidden in the museum.

博物馆内严禁摄影。

The country was forbidden to rearm under the terms of the treaty.

根据条约规定，这个国家不允许重新武装。

life-span

释义

n.寿命;

The batteries had a life span of six hours.

这些电池的寿命为6小时。

They have extended the potential life span of humanity everywhere.

世界各地人类的预期寿命均有所延长。

Some insects have a life - span of no more than a few hours.

有些昆虫寿命只有几小时.

disasters

释义

n.灾难( disaster的名词复数 ); 彻底的失败; 不幸; 祸患;

Natural disasters have obvi-ously contributed to the continent's economic crisis.

很显然，自然灾害也是造成该大陆经济危机的原因之一。

The accident has echoes of past disasters.

那起事故仿佛是过去灾难的重现。

disasters such as floods and famine

水灾和饥荒这一类灾难

cigarette 

释义

n.纸烟，香烟;

He singed his hair as he tried to light his cigarette.

他点烟时把头发给燎了。

Over coffee, she lit a cigarette, her eyes daring him to comment.

喝咖啡时，她点燃了一支烟，用挑衅的眼神看着他，谅他也不敢吭声。

Her cigarette glowed brightly, then died.

她的香烟燃起一阵亮光，然后就熄灭了。

demonstrate

释义

vt.证明，证实; 论证; 显示，展示; 演示，说明;

vi.示威游行;

My assistant will now demonstrate the machine in action.

现在我的助手将演示机器运转情况。

These results demonstrate convincingly that our campaign is working.

这些结果有力地证明，我们的运动正在发挥作用。

He flew the prototype to West Raynham to demonstrate it to a group of senior officers.

他将原型空运到西雷纳姆，向一批军官作演示。