吸烟和癌症(Smoking and Cancer)
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 catcer.
Smoking is associated with cancers.Smoke is a mixture of gases,vaporized chemicals,minlute particles of ash,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.
World governments should conduct Seriou campaigns against smoking.First,legislative step must be introduced.Second,restrictions on cigarette advertisements must be imposed.Third,public smoking in certain places such as theatres,cinemas,waiting roms at airports and railway stations should be banned.In this way,we may make the smokers feel increasingly uncomfortable about their bad habits.finally,cigarette price should be booste
幼儿英语水果名称:字母A、B开头
伊索寓言Lesson 29 The trumpeter taken prisoner 号兵
少儿英语音标入门:长元音[i:]的发音方法
幼儿英语单词大全:气象英语名称(weather)
幼儿英语水果名称:字母C、D开头
少儿英语单词儿歌:月份的天数
少儿英语单词顺口溜:工作和职业英语单词歌
幼儿英语单词顺口溜:房子内外及家具
幼儿英语单词大全
幼儿英语单词顺口溜:小动物
幼儿英语单词大全:动物英语名称(animals动物)
幼儿英语水果名称大全
幼儿英语水果名称:字母F、G、H、J、K开头
单词辨义:look,look at,see,你知道怎么看?
少儿英语单词顺口溜:课间活动动副词组英语单词歌
幼儿英语单词顺口溜:色彩和颜色
幼儿英语单词顺口溜:一数到十
幼儿英语单词大全:颜色的英语(colours颜色)
幼儿英语单词顺口溜:常见水果
幼儿英语水果名称:字母O、P、Q、R开头
幼儿英语水果名称:字母T、V、W开头
幼儿英语单词顺口溜:身体部位
幼儿英语单词大全:水果名称(fruit 水果)
幼儿英语单词大全:植物英语名称(plants)
伊索寓言Lesson 32 Hercules and the waggoner 大力神与车夫
幼儿英语单词顺口溜:快餐食品
幼儿英语单词顺口溜:学生的一天
伊索寓言Lesson 30 The milkmaid and her pail 挤牛奶的姑娘
少儿英语单词顺口溜:食物及餐具英语单词歌
幼儿英语单词顺口溜:动物名词歌
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