问题补充：
Many young people use computers, but few of them know how to look after them. Remember the following notice when you use your computer.
·Keep your computer in a cool, dry room. 【小题1】Moisture (潮湿) is also bad for them. Most computers work best at a temperature of 5℃—30℃.
·【小题2】Smoke of all kinds is very bad for many parts of a computer and can cause many problems.
·【小题3】Pieces of food and even a little water in the keyboard can also cause many problems.
·Make sure that the keyboard and screen (屏幕) are the correct height (高度) for you. 【小题4】
·Make sure the screen is the correct distance (距离) from your eyes. If you wear glasses, make sure these glasses are correct for using the computer. 【小题5】
·Keep you screen clean and don’t make it too bright. A dirty screen can hurt your eyes. A very bright screen can also be bad for your eyes.
将下列句子的序号填在横线上，使短文完整。A．Some people use a different pair of glasses when they use a computer. B．Too much or too little heat (热量) is bad for computers. C．Don’t eat or drink when you are near your computer. D．If they are not the correct height, you will get a backache.E. Don’t let people smoke near your computer. B
答案：
(答案→)B
解析：本文主要讲述了使用电脑应注意的几条建议：把电脑放在一凉快干爽的地方；不要在电脑旁边吸烟，各种各样的烟对电脑的许多部分都不好。当你在电脑附近的时候不要吃喝。食物渣和一点点的水都会引起许多问题。确保键盘和屏幕和你有合适的距离和高度。保持屏幕干净，不要使屏幕太亮。
【小题1】根据前一句Keep your computer in a cool, dry room. 和后一句Moisture (潮湿) is also bad for them. 可以判断这一句写的是温度对电脑的影响。故选B
【小题2】根据下一句Smoke of all kinds is very bad for many parts of a computer and can cause many problems. 可以判断这一条是和吸烟有关系的。故选E。
【小题3】根据下一句Pieces of food and even a little water in the keyboard can also cause many problems. 可知这一条是关于吃东西和喝水的。故选C。
【小题4】根据前一句Make sure that the keyboard and screen (屏幕) are the correct height (高度) for you. 可知此句是和高度有关系的。故选D。
【小题5】根据前一句 If you wear glasses, make sure these glasses are correct for using the computer. 可知下一句是跟眼镜有关的。故选A。
