(单词翻译:单击)
听力文本
Many of the negative effects associated with smoking cigarettes can disappear over time after a person quits.
许多与吸烟有关的负面影响戒烟后随着时间会消失。
But a new study out this week says the habit causes damage to your DNA that can last for decades.
但本周的一项新研究称，吸烟对你DNA的损害可以持续几十年。
To come to this conclusion, researchers from medical institutions across the country analyzed blood samples taken from nearly 16,000 people during prior studies.
为了得出这一结论，来自全国各地医疗机构的研究人员分析了近16,000个血液样本。
And they found that people who smoked had a pattern of methylation changes that affected more than 7,000 genes.
他们发现吸烟的人会出现甲基化改变，影响超过7,000多个基因。
Translation: The smokers' DNA was altered in a way that can change how a gene functions.
吸烟者DNA某种程度的改变会影响基因的功能。
And many of those 7,000 genes had known links to smoking-related diseases, like cardiovascular disease and certain cancers.
在这7,000个基因中，已知许多与吸烟有关的疾病相关，像心血管疾病和某些癌症。
The study's authors say that within five years of quitting, most genetic changes "recovered" to look like nonsmokers' genes.
该研究的作者称，戒烟五年大多数基因变化会“康复”，看起来像不吸烟者的基因。
But some genes, including the one linked to lymphoma, can still show signs of damage from smoking years later.
但一些基因，包括一个与淋巴瘤有关的基因，几年后仍会出现因吸烟造成损害的迹象。
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词汇解析
1、disappear
(通常指因位置改变而)消失,不见
The black car drove away from them and disappeared.
那辆黑色轿车驶离了他们的视线。
Clive disappeared into a room by himself.
克莱夫独自一人进了屋。
消失;失踪
a Japanese woman who disappeared thirteen years ago.
一个 13 年前失踪的日本女人
Janet's husband and sister noticed that small kitchen objects were disappearing with increasing regularity.
珍妮特的丈夫和她的姐姐发现厨房里的小物件经常不翼而飞，而且次数愈发频繁。
不复存在;灭绝;消亡
The immediate security threat has disappeared.
直接的安全威胁已不复存在了。
2、affect
影响;使改变
Nicotine adversely affects the functioning of the heart and arteries.
尼古丁会对心脏及动脉功能造成损害。
More than seven million people have been affected by drought.
已有超过700万的民众受到旱灾的影响。
（感情上）打动，震动，使悲伤（或怜悯）
The divorce affected Jim deeply.
离婚对吉姆打击很大。
Gregor loved his sister, and her loss clearly still affects him.
格雷戈尔爱他的姐姐，她的去世显然仍令他悲伤不已。
假装；佯装；装出…的样子
He listened to them, affecting an amused interest.
他装作饶有兴致地听他们说话。
Ms. Redgrave affects a heavy Italian accent.
雷德格雷夫女士假装带有浓重的意大利口音。
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