地壳表层有两个主要热能来源:一个是(),另一个是来自()。

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问题:

地壳表层有两个主要热能来源:一个是(),另一个是来自()。

考点:地球科学水文地质学水文地质学题库
题型:填空题
阅读下面的短文,根据短文中的信息完成文后表格。(共10题,每题1分,计10分)
We all have days when we are down, tired and unhappy. That’s OK. You need days like this, or how would you know you are happy? You’ll enjoy your good days even more when you have a few bad days. Even if sadness is a part of life, let’s try to make it small. Here are a few simple ways to help you feel better when you are feeling sad.
1.Stand up straight and this helps your energy flow (流动). When your energy is flowing freely, you can flow too.
2. Smile! It’s easy to do and have good results. This way can not only leave you in a good mood but also bring others a good mood.
3. Listen to music. It can be your favorite music. Some kinds of music work better than others, so try and find out what kind of music works the best for you. 
4. Take some "me" time. You can find pleasure in reading a book, watching a sunrise or having a hot bath, or something like that.
5. Exercise. Even something as simple as taking a walk will get your blood flowing. It is a great way to clear your mind of anything that makes you sad.
These ways will cheer you up when you are down, but don't just use them when you are sad. Try and practice them every day to make them a habit. You will be surprised to learn that these simple ways will keep your sadness away. But if you are in a deep depression (沮丧), go to see a doctor
Title : How to beat sadness
Opinions
● It is OK to feel down,   小题1: and unhappy.  
● It is possible to make sadness a small   小题2: of life.
Simple  小题3: to cheer you up
● Stand up straight so that your  小题4:  can flow freely.
●  小题5: at others because it can bring you and others a
good mood.
● Listen to your  小题6:  music because it works the best.
●  小题7:   pleasure in everyday life, such as watching a sunrise.
● Take a walk and you can clear your  小题8:   of sad things.
Suggestions
● Try to make these simple ways a    小题9:  
● Go to see a  小题10:  when you are in a deep depression
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