题型:阅读理解 题类:常考题 难易度:普通
河南省南阳市第一中学2018-2019学年高一下学期英语第一次月考试卷
Smoking is harmful. But as soon as you quit the habit, everything will be OK, right? Wrong.
New research has found that even if you give up smoking, the damage it has done to your genes will stay there for a much longer time. In the research, a team of US scientists studied the blood of 16,000 people. Among them, some were smokers, some used to smoke, and the rest were non-smokers. Scientists compared their genes and found that more than 7,000 genes of smokers had changed--a number that is one-third of known human genes.
According to NBC News, both heart disease and cancer are caused by genetic changes. Some people may have had the changes when they were born, but most people get them in their day-to-day lives while doing things like smoking.
When you stop smoking, a lot of these genes will return to normal within five years.
This means your body is trying to heal (治愈) itself of the harmful effects of smoking. But the changes in some of the genes stay for longer. They can stay for as long as 30 years, It's almost like leaving a footprint on wet cement (水泥)—-it will always be there, even when you've walked away and when the cement becomes dry.
Although the study results may make people unhappy, there is a bright side: the findings could help scientists invent medicine to treat genetic damage caused by smoking or find ways to tell which people have heart disease or cancer risks.
Bulletin Board Workshops are held at Women's Health Centre, 1441 29 St. N.W. If you are interested, please call 944-2260 or visit www.womenhealthcentre.ca. | |
Eating to Get to Your Healthiest Weight | If you are seeking professional help with your weight-loss efforts, then this workshop series, presented by Dawn Peacock, BSc, RD, is for you. The workshop will take place on Fridays, July 10 between 1:30 p.m. and 3:30 p.m. or July 24 between 7 p.m. and 9 p.m. Fee: $120 |
How to Reduce Depression & Anxiety | Depression and anxiety are two disorders that often affect women at the same time. They may go unrecognized and cause needless suffering. This four-part class, offered by Elizabeth Miles, MSc, Rpsych, will help reduce the suffering. The classes will be held on Wednesdays, July 8, between 1:30 p.m. and 3:30 p.m. or July 22 between 7 p.m. and 9 p.m. Fee: $120. |
How Do I Protect My Bones? | Osteoporosis (骨质疏松) is a serious health condition that affects women as they age. Come to this workshop, presented by Irene Jackson, RN, MN, to find out more about osteoporosis and learn how you can reduce your risk factors and protect your bones. The workshop will take place on Tuesday, Aug. 16, 8 a.m. to 8 p.m. Fee: $150. |
Raising Your Child in a Weight Obsessed World | We live in a world where television and restaurants are pushing super-sized hamburgers and soft drinks, while magazines feature pencil-thin models. This presentation, by Keri Sullivan, MSc, RD, Eating Disorder Program, will offer ways to build healthy environments and behaviours for children. The presentation will be offered on Wednesday, Aug. 24, 8 a.m. to 8 p.m. Fee: $150. |
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