假定你是苏华，你在加拿大的笔友John在做一个关于世界各国中学生如何过暑假的调查，他给你发了一封电子邮件，想了解一下有关情况，请认真阅读下面的邮件，根据信中的内容及你的实际用英语回复，可以有适当的发挥。
注意：1.字数90个左右，开头和结尾已经学好，不计入总词数。
2.回复中不得提及考生所在学校和本人姓名。

词语填空（共10小题，计10分）

用方框中所给单词的适当形式填空，使短文通顺、正确、连贯（每个单词限用一次）。

listen, down, you, on, during, become, easy, pleasant, able, clear,

Stress is a bit of a fashionable buzz word. There are similarities and links between stress and anxiety - both can lead to   1 symptoms.（症状）

So try these ten easy relaxation（放松）tips to feel more relaxed.

1.Take a short break and leave a stressful situation. If you are at work, offer to run or go for a short walk. A few minutes away can help you think   2  .

2.Take a break from the activity you are working   3  and do something different. Sometimes it helps to come back to a task later when you feel more relaxed .

3. Listen to relaxing music while you are working.  4  to classical or nature music has been shown to lower heart rate and slow breathing.

4. Take regular breaks  5   the day. Spend 5-10 minutes to read something uplifting（使人开心的） or humorous, or chat with a friend.

5. Practice mindfulness（警觉）. Mindfulness is the   6  to be fully aware of the present moment.

6. Change your focus. As people feel more stressed,their attention   7  focused on what they believe to be the cause of their stress and they ignore（忽视）other information.

7. Have a hot bath or shower. This will help to get rid of the tension in your muscles which is a normal result of stress.

8. Write  8  the things that are worrying you. If you are worried, it is very difficult to relax easily.

9. Keep things in a correct way. Ask   9  “how important is it?” “How important will it be in a year’s time?”Many of the things that cause stress are not important when we look at the big picture.

10.Slow your breathing and purposefully(有目的地) relax your body for quick results. This will be   10 than before if you have learned easy relaxation methods that you can use when you need them.

What is the sky(天空)? Where is it? How high is it? What lies above it? These questions are hard to answer, aren’t they?
Is the sky blue? The sky has no color. We know that there is air around the world. When planes fly, they need air to lift their wings(翼) . Planes cannot fly very high because when they go high, the air gets thinner. If we go up about 1,200 kilometers from the earth, we find there is no air.
Perhaps(也许) we can answer some of our questions now. The sky is space(空间). In this space there is only the sun, the moon and all the stars.
6.What is the sky?
A. It’s the clouds       B. It’s space.     C It’s air      D It’s nothing
7. The sky _____
A. is blue        B. is white        C. is black     D. has no color
8. Planes cannot fly very high because _________.
A. the air becomes thinner                         B. the flying machine is not good       
C. people will be afraid if the planes fly too high      D. it is not necessary for planes to fly so high
9 If we go up about 1,200 kilometers from the earth, we find ___________.
A. there is more air   B. there is less air   C .there is nothing but air   D there is no air
10. In space there is _________.
A. nothing       B. air everywhere       C. everything       D. only the sun , the moon and all the stars