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Public schools across the country have been on a health look since 2010. Thanks to a new law, students said goodbye to unhealthy food and hello to better eating habits in school. They also have been exercising more during the school day.

It's up to schools to decide how they follow the law. Many places require schools to provide healthy choices for lunch. In Tennessee, most schools removed(移除)sugary snacks and soft drinks from vending machines(自动贩卖机). Instead of them, there are more nutritious(有营养的)choices, such as granola bars, nuts, water, and juice.

In Florida, Missouri, and Texas, some schools have rules that ban(禁止)desserts such as cupcakes and lollipops from parties. Instead, school officials encourage teachers and parents to provide more nutritious food.

To get kids to exercise more, the northwestern Minnesota district of Perham Dent added more physical activity to the school day. Many schools also make sure that kids have break every day.

The goals of the law are to improve good health and to reduce obesity(肥胖). Obesity is the condition of being very overweight. Being obese can lead to serious health problems later in life. Experts say the number of children aged 6-11 years old who were obese more than doubled from 1980 to 2012, and the number of obese young people aged 12-19 years old have increased 4 times in the same time period.

“We know that adults who are very overweight get sick more often and lose time at work.” Julia Lear, the director of the Center for Health and Health Care in Schools, told WR News. “The best thing to do is to get kids in the habit of getting lots of exercise and eating healthy meals.”

【小题1】What is the new law about?
A.Study habitB.Test score.
C.Health problem.D.School environment.
【小题2】What does the underlined word "them" in Paragraph 2 refer to?
A.New laws.B.School cafeterias.
C.Sugary snacks and soft drinks.D.Granola bars, nuts, water, and juice.
【小题3】Which of the following is TRUE?
A.Schools must make the same rules to follow the new law.
B.Most schools in Tennessee no longer sell soft drinks in their vending machines.
C.Parents are encouraged to provide more cupcakes for kids in some schools in Texas.
D.The number of kids aged 6-11 who were obese became smaller from 1980 to 2012.
【小题4】What can obesity cause according to the passage?
A.Hair loss.B.Stomachache.
C.Hearing loss.D.Getting sick more often.
2020·江西南昌·一模
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Want to have a cold drink during summer? “Ouch!” Suddenly your teeth begin to ache. If eating ice-cream or drinking cold drinks makes your teeth ache, it could be something called TRPC5.

A new study came out on March 26, 2021. It answered a long-lasting question about teeth—why do cold food and drinks make our teeth ache? Actually, it means that our tooth enamel (牙釉质) might have been broken. The team discovered the TRPC5 15 years ago, but they didn’t know which part of the tooth could feel the change of temperature. Now they know it—it’s in the tooth enamel.

David Clapham from the team showed how teeth feel cold. When someone is eating ice-cream, for example, cells(细胞) with TRPC5 in teeth feel a change in temperature and then send information to the brain(大脑). The team also found that there is more TRPCS in bad teeth. So we should protect our teeth.

“Toothache has long been a problem,” Clapham said. “But it is important and it influences a lot of people. Toothache is nothing until you get it.” The team believed this study could help develop more useful medicine for toothache.


判断句子正误。正确的涂“A”,错误的涂“B”。
【小题1】This passage tells us to be careful about cold drinks because we may have a stomachache.
【小题2】The team knew which part of our tooth could feel the change of temperature as soon as they discovered the TRPC5.
【小题3】The following picture shows how our teeth feel cold.

【小题4】The underlined sentence advises us to protect our teeth before it’s too late.
【小题5】This study is very useful and can help people lower the risk of having a toothache.

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