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Families should reduce exposure to synthetic chemicals found in food colorings, preservatives and packaging materials as a growing body of research shows they may harm children’s health, according to a policy statement and technical report from the American Academy of Pediastrics released online.
The statement also suggests improvements to the food additives regulatory system, including updating the scientific foundation of the U.S. Food and Drug Administrations safety assessment retesting all previously approved chemicals.
Leonard Trasande ,the author of the policy statement, to tell us more about these concerns.
Q: What are the growing number of studies showing us?
A: Over the past two decades, an accumulating body of science suggests some food additives can interfere with a child’s hormones, growth and development.
Potentially harmful effects of food additives are of special concern for children because they are more sensitive to chemical exposures because they eat and drink more relative to body weight, than adults do and are still growing and developing. An early injury to their organ systems can have lifelong and permanent consequences.
Q: What additives does the statement highlight?
A: The additives of most concern, based on rising research evidence cited in the report, include:
Bisphenols, such as BPA, used to harden plastic containers and line metal cans, can act like estrogen（雌激素）in the body which may potentially change the timing of puberty, decrease fertility, increase body fat and affect the nervous and immune systems. BPA is now banned in baby bottles.
Phthalates, which make plastic and vinyl tubes used in industrial food production flexible, may affect male genital development increase childhood obesity and contribute to cardiovascular disease. In 2017, the Consumer Product Safety Commission banned the use or some phthalates in child-care products such as teething rings.
1.According to the American Academy of Pediatric’s report, people should ___ to cope with the problem of food additives.
A. try to avoid food additives in daily life and revise relevant rules on food additives
B. update the food safety assessment program and check the approved chemicals again
C. improve the food additives regulatory system and retest all approved chemicals
D. reduce the usage of food additives and establish new food protection system
2.Leonardo Trasande holds the view that food additives do more harm to children than adults because study shows ___.
A. children are more sensitive to what they eat and drink than adults
B. children usually eat and drink more unhealthy food than adults
C. children are just too young and weak to protect themselves
D. children’s organs are easier to be damaged and hard to recover
3.How many specific kinds of harmful effect caused by the additives are mentioned in the passage?
A. 2 B. 7
C. 8 D. 3
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Families should reduce exposure to synthetic chemicals found in food colorings, preservatives and packaging materials as a growing body of research shows they may harm children’s health, according to a policy statement and technical report from the American Academy of Pediastrics released online.
The statement also suggests improvements to the food additives regulatory system, including updating the scientific foundation of the U.S. Food and Drug Administrations safety assessment retesting all previously approved chemicals.
Leonard Trasande ,the author of the policy statement, to tell us more about these concerns.
Q: What are the growing number of studies showing us?
A: Over the past two decades, an accumulating body of science suggests some food additives can interfere with a child’s hormones, growth and development.
Potentially harmful effects of food additives are of special concern for children because they are more sensitive to chemical exposures because they eat and drink more relative to body weight, than adults do and are still growing and developing. An early injury to their organ systems can have lifelong and permanent consequences.
Q: What additives does the statement highlight?
A: The additives of most concern, based on rising research evidence cited in the report, include:
Bisphenols, such as BPA, used to harden plastic containers and line metal cans, can act like estrogen（雌激素）in the body which may potentially change the timing of puberty, decrease fertility, increase body fat and affect the nervous and immune systems. BPA is now banned in baby bottles.
Phthalates, which make plastic and vinyl tubes used in industrial food production flexible, may affect male genital development increase childhood obesity and contribute to cardiovascular disease. In 2017, the Consumer Product Safety Commission banned the use or some phthalates in child-care products such as teething rings.
1.According to the American Academy of Pediatric’s report, people should ___ to cope with the problem of food additives.
A.try to avoid food additives in daily life and revise relevant rules on food additives
B.update the food safety assessment program and check the approved chemicals again
C.improve the food additives regulatory system and retest all approved chemicals
D.reduce the usage of food additives and establish new food protection system
2.Leonardo Trasande holds the view that food additives do more harm to children than adults because study shows ___.
A.children are more sensitive to what they eat and drink than adults
B.children usually eat and drink more unhealthy food than adults
C.children are just too young and weak to protect themselves
D.children’s organs are easier to be damaged and hard to recover
3.How many specific kinds of harmful effect caused by the additives are mentioned in the passage?
A.2 B.7
C.8 D.3
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With a rise in the number of allergies and worries over exposure to chemicals, more people are looking for alternative ways to clean their homes. To this end, some people are turning to the use of garbage enzyme (酶)--a concentrated liquid produced from fruit and vegetable waste. Garbage enzyme can be easily produced in the home, and has many uses, including as a cleansing agent, insect killer and even shampoo.
At the same time, it is hoped that the production and use of garbage enzyme will help reduce household waste and encourage people to take the initiative in sorting their trash.
The concept of using home-produced enzymes entered China several years ago when a special bucket imported from Japan was promoted by some health experts as a means of making healthy drinks. While the effectiveness of the enzyme drink remains unproven, garbage enzyme has been shown to be effective as an agent for cleaning toilets and floors, and as a fertilizer for plants.
Making wet garbage into an enzyme solution has been practiced in Southeast Asian countries for decades, greatly reducing household waste and protecting the environment by reducing the use of bleach (漂白剂) and other strong chemicals. Many people have realized that chemicals do harm to human body and the more garbage enzyme they make, the more good it does to the environment.
Any reduction in the volume of household garbage will benefit the city. Shanghai produces the largest amount of garbage than any other city in China. It is also home to the largest refuse landfill in Asia, the Laogang Refuse Landfill in Pudong New Area, which occupies a total area of about 30 square kilometers. It is struggling to accommodate all of the city's garbage, with a fifth phase under construction. The landfill and its surrounding areas are heavily polluted, something that nearby residents have been complaining about for years. The process of making enzyme solution consumes wet garbage. This means residents don't produce wet garbage after they start to make garbage enzyme. They even find the amount of wet garbage produced by their families is insufficient, so that they have to ask for garbage from their neighbors. Another advantage is that producing garbage enzyme encourages people to think more about garbage separation — something the local government has been trying to encourage but which still is not practiced by some residents.
1.Which of the following belongs to the usage of garbage enzyme?
A.Making plants more fragrant.
B.Creating materials to clean houses.
C.Producing effective healthy drinks.
D.Reducing the amount of dry garbage.
2.What is the writer's attitude toward garbage enzyme?
A.Disapproving. B.Ambiguous. C.Favorable. D.Skeptical.
3.How will garbage enzyme possibly affect people in the future?
A.It will force people to ask for more garbage from their neighbors.
B.It will prevent people from using chemicals to clean their houses.
C.It will shelter people from household garbage pollution for good and all.
D.It will make people take garbage separation seriously before dumping it.
4.What is the passage mainly about?
A.The threat of constructing more landfills.
B.How to classify garbage wisely and practically.
C.How to make garbage enzyme at home successfully.
D.The practice of turning leftover into a household product.
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A new study suggests a link between exposure to greenery and reduced desires for alcohol. cigarette and junk food.
The study is the first to investigate the possible relationships between exposure to nature and desires and negative emotions. Researchers at the University of Plymouth’s School of Psychology surveyed 149 respondents (应答者) aged 21 o 65 about the proportion( 比例 )of green space in their neighborhood, the presence of green views from their home, their access to a garden and how often they use public green space. The study also asked questions about experiences with depression and anxiety, as well as desires for things like caffeine, alcohol and nicotine. Participants rated the intensity( 强度), imagery, and intrusiveness(侵扰性) of their desires on an 11-point scale.
Researchers found the presence of visible green space contributed to decreased desires for junk food. The effect was particularly noticeable when more than 25 percent of a respondent’s view was greenery.
Previous scholarship(学术研究) has dealt mostly with exercise in nature: A 2015 study out of the University of Michigan found 90- minute group nature walks were effective at combatting depression and relieving other mood disorders. But for people who struggle with accessibility or don’t have time for a 90-minute walk, this new study suggests just looking out a window at a tree can help fight off a bad habit.
“It has been known for some time that being outdoors in nature is linked to a person's well-being, ” lead author Leanne Martin said in a statement. “ But for there to be a similar association with desires from simply being able to see green space adds a new dimension to the previous research.”
A 2018 study from Denmark’s Aarhus University. for example, found that. Having access to green space throughout childhood decreased a person’s risk of developing mental health problems as an adult.
1.What does the second paragraph mainly talk about?
A.The results of the new study. B.The purpose of the new study.
C.The significance of the new study. D.The content of the new study.
2.What does the underlined word “combatting” in paragraph 4 probably mean?
A.Reducing. B.Developing. C.Understanding. D.Encouraging
3.According to the passage,the new study _____.
A.mainly referred to exercise in nature
B.has enriched the previous research to some degree
C.was carried out by the University of Michigan
D.found exposure to greenery helped cure mental problems
4.In which section of a newspaper may this passage appear?
A.Entertainment B.Business World
C.Tech &Science D.Environment
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The pregnant woman always sits in the nonsmoking area of restaurants to reduce her exposure ________ smoke.
A．to B．with C．in D．from
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A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increases the risk.
Researchers from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma(黑素瘤). They said that they found flaws in studies that had reported associations between sunscreen use and higher risk of melanoma.
Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helps prevent skin cancer, which is increasing in incidence(发生率)faster than any other cancer in the United States.
But questions have been raised about sunscreen and whether it may have the opposite effect, perhaps by allowing people to remain exposed to the sun longer without burning.
The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer—people with fair skin and freckles(雀斑), for example—are more likely to use sunscreen. As a result, it may appear that sunscreen users get cancer more often.
The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.
1.The underlined word “flaws” in the 2nd paragraph most probably means .
A. evidences B. facts C. faults D. failures
2.People with fair skin and freckles .
A. seldom use sunscreen
B. are more in danger of skin cancer
C. can be free from the harm of the sun
D. often expose themselves to the sun
3.We can learn from the passage that .
A. sunscreen users get skin cancer more often
B. the volunteers have proved the effect of sunscreen
C. the new study was based on the experiences of volunteers
D. the number of skin cancer patients is increasing in America
4.Which of the following can be the best title for this passage?
A. Sunscreen to Prevent Skin Cancer
B. Sunscreen to Increase Skin Cancer
C. Skin Cancer Caused by Sunscreen
D. Skin Cancer Caused by Freckles
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A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin caner, actually increases the risk.
Researchers from the University of lows based their firdings on a review of 18 earlier studies that looked at the associstion between sunscreen use and melanoms(黑素瘤). They said that they found flaws in studies that had reported associations between sunscreen use and higher risk of melanoma.
Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helpsprevent skin cancer, which is increasing in incidence (发生率) faster than any other cancer in the United States.
But questions have been raised about sunscreen and whether it may have the opposite effect, perhaps by allowing people to remain exposed to the sun longer without burning.
The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin concer—people with fair skin and freckles （雀斑）,for example—are more likely to use sunscreen. As a result, it may appear that sunscreen users get cancer more often.
The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.
1.The underlined word “flaws” in the 2nd paragraph most probably means ________.
A.evidences B.facts C.faults D.failures
2.People with fair skin and freckles ________.
A.seldom use sunscreen B. are more in danger of skin concer
C. can be free from the harm of the sun D. often expose themselves to the sun
3.We can learn from the passage that ________.
A. sunscreen users get skin cancer more often
B. the volunteers have proved the effect of sunscreen
C. the new study was based on the experiences of volunteers
D. the number of skin cancer patients is increasing in America
4.Which of the following can be the beat title for this passage?
A. Sunscreen to Prevent Skin Cancer B. Sunscreen to Increase Skin Cancer
C. Skin Cancer Caused by Sunscreen D. Skin Cancer Caused by Freckles
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A new study has found no evidence that sunscreen, commonly used to reduce the risk of skin cancer, actually increases the risk.
Researchers from the University of Iowa based their findings on a review of 18 earlier studies that looked at the association between sunscreen use and melanoma (黑素瘤)．They said that they found faults in studies that had reported associations between sunscreen use and higher risk of melanoma.
Most health experts believe that by protecting the skin from the harmful effects of the sun, sunscreen helps prevent skin cancer, which is increasing in incidence (发生率) faster than any other cancer in the United States.
But questions has been raised about sunscreen and whether it may has opposite effect, perhaps by allowing people to remain exposed to the sun longer without burning.
The researchers said that among the problems with some earlier studies is that they often failed to take into account that those people most at risk for skin cancer--- people with fair skin and freckles (雀斑), for example--- are more likely to use sunscreen．As a result, it may appear that sunscreen users get cancer more often.
The studies, which generally relied on volunteers to recall their sunscreen use, were also unable to prove how well the products had been applied, said the new study.
1.People with fair skin and freckles________.
| A．seldom use sunscreen |
| B．are more in danger of skin cancer |
| C．can be free from the harm of the sun |
| D．often expose themselves to the sun |
2.We can learn from the passage that________.
| A．sunscreen users get skin cancer more often |
| B．the volunteers have proved the effect of sunscreen |
| C．the new study was based on the experiences of volunteers |
| D．the number of skin cancer patients is increasing in America |
3.Which of the following can be the best title for this passage?
| A．Sunscreen to Prevent Skin Cancer |
| B．Sunscreen to Increase Skin Cancer |
| C．Skin Cancer Caused by Sunscreen |
| D．Skin Cancer Caused by Freckles |
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It is high time that we started to consider what ________ we should take to reduce heavy smog caused by traffic fumes and other pollutions.
A．affection B．attention
C．measures D．advantages
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________ reducing pullution, man should pay more attention to conserving energy.
A.As well as B.As long as C.As far as D.As soon as