In the aerosol of the generation when smoking, have a variety of 3000 harmful material. Endanger among them the biggest is nicotine. Tar and carbon monoxide.The nicotine in a smoke is OK kill with poison a small white rat. Absorb 40-60 milligram nicotine the person dies possibly. The ...
Smoking Is Harmful Good afternoon,everyone.I’m XXX,and it’s my pleasure to make a speech about smoking.Nowadays more and more people have realized smoking can do harm to people's health.However,some people still enjoy smoking.Why？Because some of them think it is a kind of fashion with...
In the aerosol of the generation when smoking, have a variety of 3000 harmful material. Endanger among them the biggest is nicotine. Tar and carbon monoxide. The nicotine in a smoke is OK kill with poison a small white rat. Absorb 40-60 milligram nicotine the person dies possibly. The per...
In small amounts in the human body, nicotine stimulates the nerves. It makes the heart beat faster.Nicotine is highly addictive. 4 When this effect wears off, the body strongly desires more.That is why people who smoke find it hard to stop.Cancer experts say that cigarettes kill hundreds ...
Nicotine is a kind of chemical.It is one of the most harmful and widely available legal (1)___ (drug) in the world.It's addictive and harmful both to smokers and the people who (2)___ (expose) to smoke,especially children.So it is necessary (3)___ (stop) smoking.Though giving...
smoking is harmful for people's helth. Although smoking can lift your spirits when you think problems, but in tobacco there are many harmful substances, for example, nicotine，this is a toxic substance. If you smoke for a long time nicotine will deposite in your lungs， ...
11. is known to us is that tobacco contains nicotine and other harmful products.so you should give up smoking.( )A.AsB.ItC.WhatD.Which
5___ is known to us is that tobacco contains nicotine and other harmful products, so you should give up smoking.?[ ]A. As B. It C. What D. Which 反馈 收藏
smoking is not a good habit because it is harmful to people's health. throughout the world, there are many anti-smoking campaigns here and there. we know every year many people have died from nicotine. smoking in the public does harm to people around you. our government has issued" no ...
“If young people start smoking early, they will probably get addicted (上瘾的) to nicotine (尼古丁). And it will be very hard to later on,” said a professor, A study shows smoking is a problem for many Chinese teens. can we do to make them stop smoking? Some people think we c...