英语单词拼读规则表 2014电子版 每份1元
《英语单词拼读规则》2014(电子版) 每份36元
《英语单词拼读规则》(安师大版) 每份12元

Alice 网上一对一教学

专教音标、英语拼读

|首 页|表 一|表 二|表 三|表 四|表 五|表 六|表 七|表 八|表 九|名词解释|下载中心|

高效率记单词 低成本学英语 节约学习时间 享受生命乐趣

五花八门 第1页 第2页 第3页 第4页 第5页 第6页 第7页 第8页 第9页 第10页 第11页 第12页 第13页 第14页 第15页 第16页 第17页 第18页 第19页 第20页 第21页

Smoking and cancer

Americans smoke six thousand million cigarettes every year (1970 figures). This is roughly the equivalent of 4,195 cigarettes a year for every person in the country of 18 years of age or more. It is estimated that 51% of American men smoke compared with 34% of American women.

Since 1939, numerous scientific studies have been conducted to determine whether smoking is a health hazard. The trend of the evidence has been consistent and indicates that there is a serious health risk. Research teams have conducted studies that show beyond all reasonable doubt that tobacco smoking, particularly cigarette smoking is associated with a shortened life expectance.

Cigarette smoking is believed by most research workers in this field to be an important factor in the development of cancer of the bladder and the oral cavity. Male cigarette smokers have a higher death rate from heart disease than non-smoking males. (Female smokers are thought to be less affected because they do not breathe in the smoke so deeply.) The majority of physicians and researchers consider these relationships proved to their satisfaction and say, ‘Give up smoking, If you don’t smoke - don’t start!’

Some competent physicians and research workers - though their small number is dwindling even further - are less sure of the effect of cigarette smoking on health. They consider the increase in respiratory diseases and various forms of cancer may possibly be explained by other factors in the complex human environment–atmospheric pollution, increased nervous stress, chemical substances in processed food, or chemical pesticides that are now being used by farmers in vast quantities to destroy insects and small animals. Smokers who develop cancer or lung diseases, they say, may also, by coincidence, live in industrial areas, or eat more canned food. Gradually, however, research is isolating all other possible factors and proving them to be statistically irrelevant.

Apart from statistics, it might be helpful to look at what smoking tobacco actually does to the human body. Smoke is a mixture of gases, vaporized chemicals, minute particles of ash, and other solids. There is also nicotine, which is a powerful poison, and black tar. As the smoke is breathed in, all these components is where the air tube, or bronchus, divides. Most lung cancer begins at this point.

Smoking also affects the heart and blood vessels. It is known to be related to Beurger’s disease, a narrowing of the small veins in the hands and feet that can cause great pain and lead even to amputation of limbs. Smokers also die much more often from heart disease.

While all tobacco smoking affects life expectancy and health, cigarette smoking appears to have a much greater effect than cigar or pipe smoking. However, nicotine consumption is not diminished by the latter forms, and current research indicates a causal relationship between all forms of smoking and cancer of the mouth and throat. Filters and low tar tobacco are claimed to make smoking to some extent safer, but they can only marginally reduce, not eliminate the hazards.

五花八门 第1页 第2页 第3页 第4页 第5页 第6页 第7页 第8页 第9页 第10页 第11页 第12页 第13页 第14页 第15页 第16页 第17页 第18页 第19页 第20页 第21页

明明白白读英语 轻轻松松记单词

You can memorize words in an efficient way if you pronounce them reasonably. Say words correctly, and you will learn them easily. Correct pronunciation means correct spelling of the words. English spelling is not good to guide its pronunciation. But spelling and pronunciation have closed relationship. They match each other perfectly. Sometimes we can pronounce a word according to its spelling. English pronunciation can also guide its spelling. This is a two-way communication.
支付方式 银行转帐 点击这里给我发消息
淘宝网 微信号sprew- 电话18805625062

《英语单词拼读规则表》 《英语单词拼读规则》 《英语拼读例词分类》
 

资源下载(1)

Mantid
英语拼读教学的再认识
人名表(Name List)
《英语单词拼读规则》(修订版)修订说明
英语字组表(A3)
英语字组表(A4)
《英语单词拼读规则》例词分类手册(下载)

相关资料

这套资料适合什么年级的学生?
我国英语教学中的语音体系问题
ie的特殊性
关于[tr][dr][ts][dz]的疑惑
Gimson语音体系
疑难问题PQ汇总
常见问题FAQ汇总
关于弱重读音节

QQ群233236667 微信号sprew-

五花八门(10)

Smoking and cancer
Rabies
Vitamins
Bringing up children
Etiquette
I Have a Dream(mp3)
Patton's Address to the 3rd Army(mp3)
选票还是子弹
qq个性签名
qq个性签名
qq个性资料
浪漫情怀 qq个性签名
冷酷到底 qq个性签名
qq个性签名文字版
超级自恋狂的个人说明
个人说明-qq个性签名
女娲造人
英语的历史和特点
Genius at Work
If the World Were a Village of 100 People

五花八门 第1页 第2页 第3页 第4页 第5页 第6页 第7页 第8页 第9页 第10页 第11页 第12页 第13页 第14页 第15页 第16页 第17页 第18页 第19页 第20页 第21页 无标题文档

欢迎订购《英语单词拼读规则表》
《英语单词拼读规则》
多种支付方式 

《英语单词拼读规则表》历年不同版本(正面)

《英语单词拼读规则表》历年不同版本(背面)

2005年版《英语单词拼读规则表导读》

2007年版《英语单词拼读规则表导读》

语文音像版《英语单词拼读规则》及DVD教学光盘

《英语单词拼读规则》(安师大版)

网友们经常提及的问题
《英语单词拼读规则》
字符概念的引入
单词注音方法推荐
对英语单词可拼读性的认识
辅音字母双写的含义
字符的不可分割性
记忆英语单词的三种境界
26个字母出现频率排顺序
字符的“名称”与“读音”
判断单词读音的三个步骤
关于ia io iu 及三元音
拼读与音析
长音与短音
字符 元字符 单元字符
复元字符
辅字符 单辅字符
复辅字符
|关于本站|下载中心|网络课程|规则导读|练习答案|友情链接| |

编著 李 徽 联系电话:18805625062 QQ:3759326
Copyright© http://www.sprew.net All rights reserved 皖ICP备08100528号