Every day, people come into contact with thousands of chemicals. These chemicals are said to be harmless to human health. In fact, the chemicals are considered so safe that we wash with them. We put them on our bodies and even our faces. Other chemical products are used throughout our homes.
By the time you walk out of your front door, you have already been exposed to thousands of chemicals. On its own, each chemical seems harmless. But in combination with other chemicals, they may become deadly. That is the finding of a two - year study by a high - profile task force of scientists. The task force was told to investigate the cancer - causing possibility of chemical mixtures.
Linda Gulliver was one of the 174 scientists on the task force. Their job was to study the cancer - causing potential of 85 chemicals. All 85 are said to be common in the environment.
Ms. Gulliver explains that chemicals have the potential or ability to form dangerous mixtures. Even simple minerals can become dangerous when mixed with chemicals found in plastics or beauty products.
Working in groups, the scientists explored how different chemical mixtures could lead to cancer. Ms. Gulliver’s team looked at the ability of different combinations to support the increase of malignant human cells.
She says the current way to identify whether chemicals cause cancer is to test them one at a time. This method leads, she adds, to a long list of supposedly “safe” chemicals. She and her team say that approach needs to change.
“We definitely need certain research to find out what mixtures of chemicals would be more harmful than others; what groups of chemicals, when together, would produce more harmful effects. And at the moment, that is not known.”
An estimated one in five cancers has been linked to chemical exposure. It may turn out that the cancer -causing villain is not a single chemical at all.
【小题1】What effect may one single chemical have on us according to the text?A.It may destroy our body. | B.It may not cause danger to us. |
C.It may let us suffer from cancer. | D.It may let our body make a change. |
A.friendly | B.specific |
C.harmful | D.kind |
A.is just wasting time and money | B.is still in need of great efforts |
C.will cause panic in public | D.will be resisted by the public |
A.Mixtures of Safe Chemicals May Cause Cancer |
B.Being Exposed to One Chemical Is Safe |
C.How Mixtures of Safe Chemicals become dangerous |
D.The Real Cause For Cancer |
Health Benefits Of Watermelon
Apart from a juicy and refreshing fruit, watermelon has diverse benefits to its credit. Over 90% of watermelon is water which is soaked with healthy nutrients. It is a rich source of potassium, Vitamin A, Vitamin B & C. Watermelon juice is the most favorite to all health-conscious people as it is a great source of antioxidants(抗氧化物).
For Radiant Skin
For the Prevention of Some Diseases
Like many other fruits, watermelon too has the goodness of preventing inflammation, muscle soreness, and even cancer. Watermelon has abundant nutrients like lycopene(番茄红素), antioxidants, vitamins and fiber in it.
Since it is already known that the fruit prevents muscle soreness, it also eases the medical condition of muscle cramps which usually occurs to a woman whose baby is due in twelve weeks.
Also, what one cannot ignore is the refreshing property and delicious taste of this fruit. Most people find it difficult to consume healthy drinks because of their unfavorable taste,
A.These help your organs function well and keep your body healthy and fit. |
B.For a Mother-to-be with Bone Diseases |
C.Here are some of the watermelon’s health benefits we rarely realize. |
D.but that’s not the case with watermelon. |
E.For Pregnant Women |
F.Watermelon is abundant in Vitamin A that keeps your skin glowing. |
G.so it is the same with watermelon. |
Here are some tips from the experts to help you drop pounds gradually and safely.
Eat smaller portions
The trick is to eat more throughout the day.
“Sitting down to three rounded meals has its place. But you should have healthy snacks throughout the day,” Uehlein says.
Eat more healthful foods
Fruits, vegetables and wholegrains are low in calories and fat, yet filling.
Cut back on the amount of oil you use in dressings or sauces. For example, replace half of the oil with orange juice in a sauce.
But don’t assume fat-free processed (加工过的) foods are a good choice.
“A lot of times, fat-free products are very high in salt and tend to be low in dietary fiber (膳食纤维), so you’re not full.
Be mindful
It’s not easy to keep on a diet. You are likely to eat too much, especially when you’re upset, attracted by television or you’ve skipped a meal.
“Becoming aware is so important,” Champagne says. Her patients often fear to keep a record. “They don’t want to think beyond eating, thus putting on weight easily.
Avoid situations in which you can’t eat as healthfully as you want. Uehlein, who spent years as a restaurant chef, recommends eating at home more often.
A.You’ll be hungry sooner |
B.So you’re satisfied with less |
C.But you have to learn to control |
D.So keeping a food diary is helpful |
E.Exercises are good for your weight-loss |
F.Staying away from snacks is good for our health |
G.He suggests a banana mid-morning and a few nuts in the afternoon |
Learning to Love Locally-Grown Foods
Cooking shows on TV are usually all about foreign foods. Thanks to globalization, people everywhere are introducing their taste buds to dishes from every corner of the world.
For starters, local food is often tastier because it is fresher. Imported goods must be flown or shipped in from far away, so they naturally lose some of their freshness during the journey.
Food safety is another reason why people are choosing local produce. Today’s laws regarding foods vary from country to country.
Buying local foods can also have a beneficial impact on the environment. Buying local, consumers can maintain green space and farmland in their communities. Besides, if farmers can sell directly to consumers, they will earn more money for their families. Additional profits also enable farmers to better care for their soil and keep quality standards high.
A.In the end, it’s a win-win situation for both parties. |
B.Foreign foods have already dominated home markets. |
C.To conclude, the farmers can make money and improve their life. |
D.At the same time, other people are discovering that food from their area is the best. |
E.If you’re interested in having more local foods, you can even attend a farmers’ market. |
F.This causes confusion and makes it difficult to check if any harmful chemicals were used. |
G.Imported goods must also be packaged in plastic or other containers to survive the journey. |
组卷网是一个信息分享及获取的平台,不能确保所有知识产权权属清晰,如您发现相关试题侵犯您的合法权益,请联系组卷网