单句改错（共10小题，每小题1 分，共计10分）

1. Dad is coming back from abroad. What presents do you think will he bring to us?   1. __________

2. He mustn’t have gone far, because his coat is still here on his chair.              2. __________

3.According to a widely accepted theory, the universe began with a “Big Bang” that threw matters in all directions. 3. ___________

4.We are advised to wear sunglasses to prevent our eyes from the strong sunlight.    4. ___________

5.We won’t have Jim get away with cheating in the exam. 5. ___________

6.I have told him about the get-together but if he will come I don’t know. 6. ___________

7.He told us that it would be a great chance to build our bodies and we would have a wonderful time in it.  7. __________

8. Dressed in a bright red dress, she was easy to be picked out in the big crowd.       8. __________

9.She said that she might not come, so it is no point waiting for her here.            9. __________

10. After they moved in, she decided to change the curtains because they did not fit the wall and the furniture.  10. __________

---Do you know ______?

---Sorry, but if he _____ back, I ____ you know as soon as possible.  

30．As he has been in a terrible state of mind these days, on no account  ________          achieve success in the coming English speech competition.

         A．has he          B．he has     C．will he              D．he will

The Body Temperature
The temperature of your body should be always just the same, no matter whether the weather is hot or cold. That is why the doctor uses his thermometer （温度计）when your are sick.
The body keeps the same temperature all the time ,because it balances the heat it produces and it gives off. It is always burning up food and , producing heat. It can produce heat faster when it needs to give off heat than when it becomes too warm. Let’s see how this happen.
The heat of your body is given off mainly through the skin. When you are cold, your skin is tight and shows “good flesh”. When you get chilly, you must dance around to keep warm or else you will shiver. Then your muscles begin to work, burn up fuel, and produce more heat. It is not pleasant to shiver, so you usually prefer to warm up by exercise, or put on more clothes to keep heat in.
When you are warm, the skin is loose and soft. It is so supplied with blood that heat is given off rapidly. If you get too warm, you begin to sweat ,and more body heat is used in evaporating the moisture（水蒸气） from your skin. You wear less clothing, too, in warm weather or warm room, so that warm can be given off freely. You feel less like exercising because your body is warm already, and the extra heat produced by exercise makes you uncomfortable.
You can see from the way you feel differently in different kinds of weather. In summer, when it is warm, you feel tired and lazy. You do not care to work or play, but enjoy lying and doing nothing. When you get out of doors in winter, the cold air makes you feel lively. You want to play.
【小题1】Which is another title suitable of the passage?

How long ______ teaching? Forty years.