为了丰富校园生活，你校学生会将举办歌唱比赛，请根据以下信息用英语写一篇广播稿。

1). 参加对象：全体高一学生

2). 比赛要求：表演限时3分钟，自带伴奏录音（Karaoke）或乐器

3). 比赛时间：5月22日 下午2点

4). 比赛地点：学校礼堂（auditorium）

注意：1). 词数80左右（开头和结尾已给出，但不计入总词数）

2). 可以适当增加细节， 以使行文连贯。

Boys and girls,

Attention please!

    In order to enrich our school life, the students' union……

    Wish you success!

假设你是李华。你的美国笔友Susan要在暑假来中国桂林参加一个文化交流活动。 她想提前了解一下这座城市的相关情况，写信向你询问，请根据以下提示信息，给她回一封信。

注意： 1）词数100左右，开头和结尾已经给出，但不计入总数；

2）可适当增加细节，以使行文连贯；

3）参考词汇   象鼻山 Elephant Trunk Hill   chilli sauce

Dear Susan,

I'm glad that you are coming to Guilin for an exchange program during the summer holiday.

Yours

Li Hua

要点如下：

原因

1）长时间看电视玩电子产品；

2）缺少运动；

3）饮食结构不合理，喜欢吃甜食等垃圾食品；

4）学习负担重。

建议

1）多参加体育锻炼；

）远离电子产品；

3）多吃健康食品，远离垃圾食品。

要求：

1）词数 150 左右；

2）文章包含提示的所有信息，避免逐字翻译；

3）可以适当发挥，提出自己的观点。 参考词汇：青少年肥胖 teen obesity

【写作要求】

1）作文中不能出现真实姓名和学校名称；

2）不必写标题。

1）看起来像真人一样；

2）可以帮助做许多事情：做家务、做饭、帮儿子做作业，陪主人外出购物等；

3）你的担心：出了毛病不听指令，伤害儿子；

4）对未来的展望。

注意：⑴用第一人称。  ⑵字数120词左右。

    "Helicopter parents" is a description of parents who are hovering over their children in a state of extreme concern. They always show up to solve their children's problems, protect them from real or imagined harm, resolve stressful situation, offer advice and get them out of trouble, even if they misbehaved. Although out of love and concern, it can have harmful effect on their children's emotional development and future autonomy.

    Children learn through their mistakes. But if you intervene (介入) at first sign of struggle and finish your child's homework, he'll miss out on valuable learning opportunities. You're sending him the message that he needs to be perfect and failure is not an option, otherwise you wouldn't always take over for him.

    By constantly rescuing your child from stressful situation, you're sending him a message that you don't believe he's capable of taking care of himself. Children develop self-esteem by learning how to complete challenge on their own. If you are always intervening, he's denied this vital stage in his growth. As a result, your child may lack the confidence necessary to do well in school, pursue hobbies and interests, and develop friendships.

    If you're always taking care of everything for your child, it'll be more difficult for him to become independent. As an adult, he might find it hard to take care of himself, because he's never developed coping skills to deal with life's challenges. He might suffer from irrational fears, anxiety and depression, which could lead him to drop out of college or frequently change jobs, according to Dr. Michele Borba. Instead of developing healthy relationships, he might seek a partner who will take care of him or controlling, as his parents were.

You can help your child become more independent by allowing him to complete tasks and challenges on his own without your intervention. Even if he fails at first don't interfere—encourage him to start again. Show that you have faith in his abilities to succeed without your help. Allow him to learn natural consequences. Even small things can help him become more independent—making his own bed, preparing his own lunch, shopping for his own clothes and doing homework without your help.

Robotic Exoskeletons

Thanks to robotic exoskeletons, victims of spinal cord (脊髓) injury have a new reason to hope. Robotic exoskeletons, consisting of metal legs, motors, batteries, wiring, a controller and a set of strips work together like the user's bones, muscles and nerves-outside the body. Fastened into an exoskeleton and supported by sticks, users can direct the machinery to take them where they want to go.

In addition to partly restoring mobility, robotic exoskeletons offer the significant mental and physical health benefits of standing up and moving. Just being able to get up from a wheelchair gives patients a more natural, positive view of the world. It also helps relieve pressure on patients' skin and reduces the danger of pressure sores. Standing upright strengthens a disabled person's muscles and bones, improves heart health，and reduces certain other health complications (并发症). And it may actually result in partial nerve repair, something that can only happen when a patient is able to move.

As promising as this technology is, however, it is no simple cure-all for paralysis(瘫痪) or its complications. The motion is not accurate compared with natural walking, and exoskeletons are not easy to use, especially on surfaces that are not smooth. They are very expensive, costing about US$100000. Health insurance plans and government programs may not cover the cost of buying one.

Nevertheless, robotic exoskeletons, and access to them, will continue to improve. As with much modem technology, robotic exoskeletons will likely become more capable and easy to use, even as their cost goes down. Governments and insurers may increasingly see that the health benefits of these walking machines outweigh the costs, making it easier to fund them. Perhaps the day will come when nearly everyone paralyzed by spinal cord injury will be able to "walk" again.