每天户外活动一小时，学习、身体倍儿棒！

           

      Whether it’s a camping holiday in the countryside or a weekend bike ride, the experts are in agreement: the healthiest thing you can do as a family this summer is to simply step outdoors —and get moving.
       To maintain a basic level of health, children aged 5 to 18 should get at least one hour of physical activity every day. However, new figures show that only 22 percent of children in England achieve this. In children under five, less than one in ten meet the guidelines for their age.
       Children spend much time on social media, in front of computer screens, televisions and devices, putting them at an increased risk of conditions in later life, such as type 2 diabetes and heart disease. Effects can be emotional too: numerous studies have found that British children are some of the unhappiest in the world. A recent international study put the UK 38th out of 48 countries for happiness of 15-year-olds.
       The good news is that meeting the daily exercise and screen-time requirements can make a huge difference. Last week, a US study found that children who follow the government advice on physical activity, screen time and sleep have an 89 percent lower risk of being obese. Here, our experts show why it’s time to get your children and grandchildren to put down their iPhones, tablets and game controllers and get busy outside…
       Leading neuroscientist Baroness Susan Greenfield is a broadcaster and writer of numerous books including Mind Change, which looks at the effects of technology use on young minds. She says, “Studies have shown that physical activity can improve learning skills. We know that exercise can help the growth of brain cells. Recent data suggests that physically active children have more active brains. Researchers found that after 20 minutes of activity, children scored better in reading, spelling and maths, while just one active lesson at school resulted in a 21 percent reduction in the time teachers spent managing behaviour.

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1.What does the writer want to tell the readers?

A People should have a very long holiday.

B It’s bad for us to get together in summer.

C Going out to exercise benefits us much.

D It’s effective to do sports in summer.

解析：选C。主旨大意题。根据第一段第一句的the healthiest thing you can do as a family this summer is to simply step outdoors – and get moving可以得知文章讲述的就是出去运动是最好的做法。故选C。

2.What does the underlined phrase “the guidelines” refer to?

A Children should exercise more than one hour a day.

B Only 22% children in England reach the standard.

C The healthiest thing you can do is to stop the media.

D More children will suffer from the heart disease soon.

解析：选A。词意指代题。根据第二段第一句的To maintain a basic level of health, children aged 5 to 18 should get at least one hour of physical activity every day可以得知这个标准就是指一天至少有一个小时的户外活动。故选A。

3.What will the daily exercise help with the children?

A They won’t suffer from the type 2 diabetes.

B They will become the happiest in the world.

C They will mostly have the standard weight.

D They will put down their books again.

解析：选C。推理判断题。根据第四段第二句的who follow the government advice on physical activity, screen time and sleep have an 89 percent lower risk of being obese可以得知，遵照政府针对户外活动的建议的人不会太肥胖。故选C。

4.How does the physical activity affect the children’s study?

A It will make their learning skills better.

B It will make the students active at home.

C It will get them score less in reading.

D It will take the children more time.

解析：选A。推理判断题。根据最后一段中的Studies have shown that physical activity can improve learning skills.可以得知体育运动能够改善孩子的学习技能，也就是把他们的学习技能变得更好。故选A。