正常是每天两个Group,凌晨一次,晚上一次。一般你早上起床后就能看见Group1了,晚上放学时可以看到Group2~!像这种文章加翻译加核心单词总结是福利,按心情来喽~话说更这种真的好痛苦...太长了...

Apart form 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 form deposits on the membranes of the lungs.One point of concentration is where the air tube,or bronchus,divides.Most lung cancer begins at this point.

如果不看统计资料,单是看看烟草对人体的实际影响也有助于我们理解其危害。烟是气体、汽化的化学剂、微量灰烬及其它固体的混合物,含有剧毒尼古丁,以及黑焦油。吸入体内后,所有这些成份就在肺膜上沉积。一个比较集中的地方就是气管或支气管分支的地方。大部分肺癌就发生于此。

生词
22.vaporize
vt.使…蒸发;使…气化
vi.蒸发;气化;吹牛
23.nicotine
n.尼古丁
24.tar
n.柏油,沥青;焦油
25.membrane
n.膜;薄膜
26.bronchus
n.复数bronchi支气管

Smoking also affects the heart and blood vessels.It is known to be related to Buerger'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.

加我一个！楼主

吸烟同样会影响心血管系统。它与Buerger氏病(血栓闭塞性血管炎)密切相关。这种病使手脚的小血管变得狭窄,给病人造成极大的痛苦,甚至导致截肢。吸烟者中有很多人都死于心脏病。

重点单词
27.vein
n.静脉,血管;叶脉;纹理,纹路;方式,风格
【例句】He cut a vein.他切断了一条静脉。
28.amputation
n.切断,截肢
【类比】amputate
v.截肢;锯去
【例句】His leg was so badly injured that it had to be amputated.他的腿伤得很严重,不得不截除。
29.limb
n.肢,翅膀
n.肢,臂,腿,手足;树枝
【例句】He lost a limb in the battle.他在战争中失去一只手(脚)。

试试看！

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.

虽然各种烟草都有损寿命和健康,但卷烟似乎比雪茄或旱烟危害更大。然而,在后两者中,尼古丁的吸入并未减少,而且,最近一项研究表明任何一种烟对口腔癌与咽喉癌的发生都有影响。据说,过滤嘴及低焦油的烟草能在某种程度上提高安全性,但这只是稍微地降低了危害,而不是消除。

之前手机没电自动关机...打好的全没了...现在又不小心删了...天呐~~这是要闹哪样啊!!!

之前手机没电自动关机...打好的全没了...现在又不小心删了...天呐~~这是要闹哪样啊!!!

之前手机没电自动关机...打好的全没了...现在又不小心删了...天呐~~这是要闹哪样啊!!!

重点单词
30.diminish
vi.变少,变小,降低
vt.减少,减小,降低
【构词】mini=small,little小(mimi也作min)。di-(=dis-)加强意义。-ish动词后缀,使…
【例句】Inflation diminishes the value of money.通货膨胀减少金钱的价值。
【辨析】decrease,diminish,reduce
decrease作减少,减小讲,强调逐渐地下降或减少的过程。diminish强调由于某种原因而减少,这种减少可以造成能够为人觉察得到的后果或损失,该词有不幸的意味。reduce是及物动词,指通过人为的方法在数量、规模、范围等方面减少,亦指在地位、重要性方面降低等级。