实践活动

同学们，实践是检验真理问题的唯一标准，运用你们学到的知识实践检验一下能力提升了吗?

Believe it or not, many of the arguments can be borrowed comfortably for discussions on other issues. Can you take a position on one issue and defend your point with some arguments from the text?

•prostitution

•gambling

•smoking

Smoking is harmful to health. Medical science has now proved that smoking can cause lung cancer and other diseases such as emphysema. Your chances of having a heart attack also increase the more you smoke. Smoking is definitely a health hazard.

Smoking is harmful to the health of people . It not oilly pollutes air，brings about sufferings of other people such as children and nonsmokers，but also causes diseases of bronchitis，lung cancer，chest cancer and throat cancer．

Smoking is associated with cancers．Smoke is a mixture of gases, vaporized chemicals, and other solids. There are also tar and nicotine，which are powerful poisons. As the smoke is breathed in, all these components from deposits the membranes of the lungs. One point of concentration where air tube，or bronchus divides．Most lung cancer begins at this point.

Smoking not only makes you smell terrible, it is also terrible for your health. If you smoke, everyone in your home is breathing in your second hand smoke. Smoking makes your throat hurt, your teeth yellow, and your lungs black. Smoking is also like throwing money away. Each pack of cigarettes you smoke is really money going up in smoke. You are burning money with nothing to show for it.