假如你是某杂志健康栏目的主持人Mr Helper，人们经常写信询问健康之道，请你写一封回信，指出健康的重要性，并针对“如何保持健康”给出自己的建议。信的内容需包含以下信息：
1．健康的重要性；
2．给出保持健康的方法，如：科学饮食，多吃水果蔬菜，保持饮食平衡；避免高糖，高脂的食物；摒弃不良习惯；多锻炼等。
注意：词数100左右。
Dear readers,
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Yours sincerely,
Mr Helper
假定你是李华，你的英国笔友Helen正在进行一项关于各国中学生课外阅读情况的调查。她给你发了一封电子邮件，想了解相关情况。请你根据以下提示，给她回信。
(1)你校学生课外阅读的现状；
(2)原因分析；
(3)你的看法。
注意：
(1)词数100左右；
(2)可以适当增加细节，以使行文连贯；
(3)开头和结尾已给出，不计入总词数。
Dear Helen,
I’m very glad to receive your email. Now I would like to tell you something about the extracurricular reading in our school.
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Best wishes!
Yours
Li Hua
阅读下面短文，根据其内容写一篇60词左右的概要。
Is a knife useful instrument or a dangerous weapon? It depends on how it is used. It’s the same with technology and one of those greatest inventions is cell phones. They have revolutionized the human existence. This is possible only because they are getting cheaper and cheaper. The technology has made it even easier to give them a longer life.
Undoubtedly, if cell phones are in right hands, no matter how far we are setting we can talk anytime anywhere! We can watch favourite TV shows, listen to favourite songs,etc, as cell phones are equipped with all high-tech features. In fact, it’s good to parents as well as children. Parents can monitor their children and children are also safe. If anyone is an any ind of danger, ahe or he can call for help immediately.
There are always two sides of a coin. The technology has caused a danger that we keep ignoring. The cell phones have progressed rapidly and at the same time they provide us with more tasks than what we would attempt. When a person is multitasking rather than complete a single task, this causes burden and results in stress. Also cell phones have made terrorist attacks in the world very easy. Besides, children spend much of their time in playing games instead of going out and playing, which is very harmful to them.
We should always remember that there lives a wise man between the valley of two mountains. Are cell phones a useful instrument or a dangerous weapon? The answer lies in our hands.
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阅读下面短文，根据其内容写一篇60词左右的内容概要。
If you're worried that too much “screen time ”could badly influence your child's intelligence， new research suggests you might be right. By analyzing the data gathered from over 4，500U. S. kids aged 8 to 11 between 2016 and 2017，Jeremy Walsh，a postdoctoral fellow with the CHEO Research Institute in Ottawa， found that too much “screen time” could be harming your child's intelligence.
Kids with the sharpest intellects spent less than two hours a day on their cellophanes， tablets and computers coupled with 9 to 11 hours of sleep and at least an hour of physical activity. Too much screen time could be affecting kids ability to focus， especially if they are switching between apps on a device or between different screens at the same time， Walsh suggested. “ One leading theory is that much time on screens is spent multitasking using multiple apps or devices at once，” he said. “This can interfere with a child's ability to focus and keep interest on a task. It can be damaging the building blocks for good cognition(认知).”
Sleep is important for brain development， since that's when the brain reorganizes itself and grows， Walsh added. Besides， exercise has been shown to increase blood flow to the brain and oxygenation of brain tissues， and increases the connectivity of networks in the brain. Too much screen time could lead to a“ cascade”(瀑布) effect where kids don't get enough sleep and then are less active during the day.“ You can see how this would have an impact on brain health，” Walsh said.
What should parents do? Walsh advised setting firm rules about the use of screens including how long children are using the screens， the kinds of apps they are using and how many screens they are using at once. Concerned parents also should preview games or apps before letting their child play， seek out more interactive(交互的)options that engage the child's mind， and use parental controls to block or filter content and limit screen time.
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假定你是李华，得知外教Mr. Hall寒假不回国，想邀请他到你家过春节。请给他写一封信，内容包括：
1.时间；2.一同过节的家人；3.节日活动。
注意:1.词数80左右；2.可以适当增加细节，以使行文连贯。
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阅读下面短文，根据其内容写一篇60词左右的内容概要。
In our modern world, when something wears out, we throw it away and buy a new one. The problem is that countries around the world have growing mountains of rubbish because people are throwing out more rubbish than ever before.
How do the society become a throwaway one? First of all, it is now easier to replace an object than to spend time and money repairing it. Thanks to modern manufacturing (制造业) and technology, companies are able to produce products quickly and inexpensively. Products are plentiful and cheap.
Another cause is our love of disposable (一次性的) products. As busy people, we are always looking for ways to save time and make our lives easier. Companies produce thousands of different kinds of disposable products: paper plates, plastic cups, and cameras, to name a few.
Our appetite for new products also contributes to the problem. We are addicted to buying new things. Advertisements persuade us that newer is better and that we will be happier with the latest products. The result is that we throw away useful possessions to make room for new ones.
All around the world, we can see the consequences of this throwaway lifestyle. Mountains of rubbish just keep getting bigger. To decrease the amount of rubbish and to protect the environment, more governments are requiring people to recycle materials. However, this is not enough to solve our problem.
Maybe there is another way out. We need to repair our possessions instead of throwing them away. We also need to rethink our attitudes towards spending. Repairing our possessions and changing our spending habits may be the best way to reduce the amount of rubbish and take care of our environment.
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