题目内容

15．How to Look After a Computer
Many young people use computers，but few of them know how to look after them．Remember the following when you use your computer．
1．Keep your computer in a cool，dry room．（68）BMost computers work best at a temperature of 5℃-30℃．
2．（69）ESmoke of all kinds is very bad for many parts of a computer and can cause many problems．
3．（70）CPieces of food and a little water in the keyboard can also cause many problems．
4．Make sure that the keyboard and screen are at the correct height for you．（71）D
5．Make sure the screen（屏幕）is the correct distance （距离） from your eyes．If you wear glasses，make sure these glasses are correct for using the computer．（72）A
6．Keep your screen clean and don't make it too bright．A dirty or a very bright screen can hurt your eyes．
在方框中选择恰当的句子补全以上短文，将序号填在相应的横线上．E涂AB．
A．Some people use a different pair of glasses when using 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 at the correct height，you will get a backache．
E．Don't let people smoke near your computer．

分析 文章大意：这是一篇说明文，主要介绍如何维护电脑．如：把电脑放在阴凉干燥的房间里；不要让人在电脑旁吸烟；靠近电脑时不要吃或喝；确保键盘和屏幕处于正确的高度；确保屏幕与眼睛的距离是正确的；保持你的屏幕干净等．

解答 68．答案：B．选句题．根据下句Most computers work best at a temperature of 5℃-30℃．大多数电脑的工作温度最好在5°C-30°C．可知，上句应该是"太多或太少的热量对电脑有害．"．选B．
69．答案：E．选句题．根据下句Smoke of all kinds is very bad for many parts of a computer and can cause many problems．各种各样的烟雾对计算机的许多部分都是非常有害的，而且会引起许多问题．可知，上句应该是"不要让人们在你的电脑附近吸烟．"，选E．
70．答案：C．选句题．根据下句Pieces of food and a little water in the keyboard can also cause many problems．小片的食物和少量的水也会引起许多问题．可知，上句应该是"当你靠近电脑时不要吃或喝．"，选C．
71．答案：D．选句题．根据上句Make sure that the keyboard and screen are at the correct height for you．确保键盘和屏幕处于正确的高度．可知，下句应该是"如果它们不是在正确的高度，你会得到背痛．"，选D．
72．答案：A．选句题．根据上句If you wear glasses，make sure these glasses are correct for using the computer．如果你戴眼镜，请确保这些眼镜对使用电脑来说是正确的．可知，下句应是"当使用电脑时，有些人使用不同的眼镜"．选A．

点评 选句填空，要注重句子与句子之间、段落与段落之间逻辑关系以及对篇章的整体理解．结合语境，根据所给句子，选择合适的答案．

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根据短文内容，回答下列问题或补全句子．
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92．What attracted many people？The white elephant
93．Where did the boy put a red hat？On the white elephant's head
94．Who gave the white elephant a name himself？The king
95．People feelexcitedwhen they find a white elephant．
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