B. The news seemed very good, but not so real, and it was false.
C. The news seemed not good, but real, and it was not good.
D. The news seemed not good, but real, and it was not good.
5. What can the new drugs really do?
A. it can cure all cancers
B. it can cure nothing
C. it can only cure cancer in mice
D. it can cure cancer in all animals
第2篇
Ulcers
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 all ulcer.
Overall, 61％of ulcer risk appears to be due to environmental factors, such as smoking, and the remaining 39％is due to genes according to Dr. Ismo Raiha of the University of Turky and colleagues at the University of Helsinki, Finland. Some researchers had suggested that families may spread Helicobacteria pylori, the bacteria that can cause ulcers. However, the new study suggests this is unlikely, according to the report.
Raiha and colleagues studied data from more than 1 3, 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 par of fraternal twins, suggesting that there must be some genetic susceptibility to ulcer development.
However, the risk was no greater in twins living together compared with twins living apart, suggesting that shared exposure to H. pylori was not to blame. “Environmental effects were not due to factors shared by family members, and they were related to smoking and stress in men and the Use of analgesics in women,” the authors wrote. “The minor effects of shared environment to disease liability do not support the concept that the grouping of risk factors, such as H. pylori infection, would explain the genetic factor of peptic ulcer disease,” they concluded.
词汇：
ulcer／n. 溃疡
lifestyle／n. 生活方式
genetic／adj. 基因的, 遗传(性)的
stress／n. 压力, 紧张, 造成紧张的因素
overall／adv. 总的说来, 大体上
environmental／adj. 环境的, 有关环境(保护)的
gene／n. 基因
colleague／n. 同事, 同僚
bacteria／n. 【bacterium的复数】细菌
peptic／adj. 消化性的 .
fraternal／adj. 异卵双生的, 两合子的
susceptibility／n. 敏感性, 过敏性
analgesic／n. 止痛剂, 镇痛药
liability／n. 倾向
练习：
1. According to the passage, which of the following is a very likely cause of ulcer in men?
A)Smoking and stress.
B)Drinking and smoking.
C)Genes and children.
D)Use of a certain medicine.
2. What factors contribute to over half the ulcers?
A)Hereditary factors.
B)Economic factors.
C)Environmental factors.
D)Genetic factors.
3. In relation to ulcers, experts study twins in order to examine
A)the roles of genetic factors.
B)the roles of environmental factors.
C)the roles of both genetic and environmental factors.
D)the roles of brotherhood.
4. “Environmental effects” in the fourth paragraph refers to effects brought about by
A)a clean environment.
B)smoking and stress in men and use of pain-killing medicine in women.
C)factors shared by family members such as genes and the food they eat.
D)shared exposure to H. pylori infection.
5. The passage argues that
A)ulcers are related to genes.
B)ulcers are chiefly related to lifestyle.
C)ulcers appear in men and women.
D)ulcers are caused by pylori infection
第3篇
Losing Weight
Girls as young as 1 0 years old are dieting and in danger of developing unhealthy attitudes about weight, body image and food, a group of Toronto researchers reported Tuesday.
Their study of 2,279 girls aged 10 to 14 showed that while the vast majority had healthy weights, nearly a third felt they were overweight and were trying to lose pounds. Even at the tender age of 10, nearly 32 per cent of girls felt “too fat” and 31 per cent said they were trying to diet. McVey, a researcher at the Hospital for Sick Children in Toronto, and her colleagues analyzed data collected in a number of surveys of southern Ontario school girls between 1 993 and 2003, reporting their findings in Tuesday‘s issue of the Canadian Medical Association Journal.
Nearly 80 per cent of the girls had a healthy body weight and only 7. 2 per cent were considered overweight using standard weight-to height ratios. Most researchers suggest the rate of overweight children in this country is several times higher than that figure.
Nearly 30 per cent of the girls reported they were currently trying to lose weight, though few admitted to dangerous behavior such as self-induced vomiting.
Still, a test that measured attitudes towards eating showed 10. 5 per cent of survey
Participants were already at risk of developing an eating disorder.
“We‘re not talking about kids who’ve been prescribed a diet because they‘re above average weight or overweight. We’re talking about children who are within a healthy weight range. And they have taken it upon themselves to diet to lose weight,” McVey said, acknowledging she found the rates disturbing. She said striking a balance between healthy weights and healthy attitudes towards food and body image is a complex task, with no easy solutions.
，2017职称英语模拟题卫生C 第三套