Even though ulcers appear to run in families, lifestyle plays more of a role than genetic factors in causing the illness, according to a report in the April 13th Journal of Internal Medicine. In particular, smoking and stress in men and the regular use of pain-releasing medicines in women were linked with an increased risk of developing an ulcer.
Raiha and colleagues studied data from more than 13,000 pairs of twins to examine the roles of genetic and environmental factors in the origin of peptic ulcer disease, they explain. Both twins were more likely to develop an ulcer if the pair were genetically the same as compared with a pair of fraternal twins, suggesting that there must be some genetic susceptibility to ulcer development.
1. According to the passage, which of the following is a very likely cause of ulcer in men?
B) Drinking and smoking.
D) Use of a certain medicine.
A) Hereditary factors.
C) Environmental factors.
3. In relation to ulcers, experts study twins in order to examine
B) the roles of environmental factors.
D) the roles of brotherhood.
A) A clean environment with no smoke and dust surrounding the living area.
C) Factors shared by family members such as genes and the food they eat.
5. The passage argues that
B) ulcers are related to lifestyle.
D) ulcers are caused by pylori infection.
To pop the question 求婚
Dirt cheap 非常便宜
Work your socks off 拼命干活
日常英语:时尚潮流
Lose one's shirt 输得一干二净
Football and soccer 两个词的区别
To blow a fuse 勃然大怒
日常英语:伦敦常识
Dressed to the nines 衣冠楚楚
To have deep pockets 资金雄厚
日常英语:找工作
To have a crush on someone 迷恋某人
日常生活:找房和租房时的常用英语
To fall for someone 迷恋一个人
日常英语:办公用语
To hit it off (with someone) 一见如故
Armed to the teeth 全副武装
日常英语:聚会用语
Europa moon 'spewing water jets' 木卫二表面“喷射出水汽”
Pull your socks up 加把劲儿
Butterfly numbers drop a mystery, say experts 英国蝴蝶数量下降现象令专家费解
To harp on about something 喋喋不休
To be on the same wavelength 意气相投
Turn a blind eye 视而不见
Strapped for cash 手头紧
Knock your socks off 叹为观止
Pay through the nose for something 出高价,花大价钱
Tasmanian devil milk fights superbugs 袋獾乳汁可对抗“超级细菌”
Been to vs gone to 语法辨析
Have egg on your face 狼狈不堪
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