注意：1）词数100字左右。

2）可适当增加细节，以使行文连贯。

3）参考词汇：物件item

4）文章开头已给出。

    Facing the four items put forward by my psychology teacher, I, a Senior Three student, ……

1)你以前从未去过北京，请他当向导，带你参观长城，颐和园和其它名胜；

2)想住在他家里，以便聊聊彼此的生活和学习；

3)问候他的父母。

注意：1)词数120左右

2)颐和园 the Summer Palace

Dear Li Hong,

Yours sincerely,

Li Hua

1)环境污染越来越严重

2)作为学生, 我们应该怎样保护环境

3)号召同学们从现在做起。

注意：

1)词数100左右;

2)可以适当增加细节，以使行文连贯。

    Do you ever notice the music playing when you enter a store? No? Often it is very difficult to point out. It is similar to the music you listen to, but it is not the same. The music played in stores is changed to be more relaxing and to give you more mental energy. This style of music is called “elevator music.”

    Elevator music is also referred to as Muzak. Muzak is very commonly listened to in the USA. About 1/3 of Americans will listen to Muzak for about 15 minutes a day in order to relax themselves. The music is played and contains short pauses. The most common time to hear elevator music played is between ten and eleven in the morning, and three to four in the afternoon. This is when most people are the most tired and could use the extra energy.

    Elevator music is often played in public places because it is designed to make people feel less lonely and refreshes their brain. It has been proven that Muzak does what it is supposed to do. Studies have shown that tired office workers have more energy when Muzak is played in the background of the office. In addition, factory workers produce 13% more and shoppers buy 38% more groceries in a supermarket when listening to Muzak.

Some people do not like Muzak. They say it's boring to hear the same songs all the time, but other people enjoy hearing Muzak in public places. They say it helps them relax and feel calm. Often you may recognize the songs being played. That is because many of the songs have been bought from the musicians or songwriters. Some of them do not like their music to be used for Muzak but others are happy when their songs are chosen. The top musicians that allow their music to turn into Muzak music can make up to 4 million US dollars a year. One way to another, Muzak affects everyone.

Which one you choose to talk about;

What influences it has on your life;

What you think of it.

注意：⒈ 自拟标题；

⒉词数不少于50。

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.