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 (距離) 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.
在方框中選擇恰當(dāng)?shù)木渥友a全以上短文,將序號填在相應(yīng)的橫線上.E涂AB.
A.Some people use a different pair of glasses when using a computer.
B.Too much or too little heat (熱量) 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:這是一篇說明文,主要介紹如何維護電腦.如:把電腦放在陰涼干燥的房間里;不要讓人在電腦旁吸煙;靠近電腦時不要吃或喝;確保鍵盤和屏幕處于正確的高度;確保屏幕與眼睛的距離是正確的;保持你的屏幕干凈等.

解答 68.答案:B.選句題.根據(jù)下句Most computers work best at a temperature of 5℃-30℃.大多數(shù)電腦的工作溫度最好在5°C-30°C.可知,上句應(yīng)該是"太多或太少的熱量對電腦有害.".選B.
69.答案:E.選句題.根據(jù)下句Smoke of all kinds is very bad for many parts of a computer and can cause many problems.各種各樣的煙霧對計算機的許多部分都是非常有害的,而且會引起許多問題.可知,上句應(yīng)該是"不要讓人們在你的電腦附近吸煙.",選E.
70.答案:C.選句題.根據(jù)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會引起許多問題.可知,上句應(yīng)該是"當(dāng)你靠近電腦時不要吃或喝.",選C.
71.答案:D.選句題.根據(jù)上句Make sure that the keyboard and screen are at the correct height for you.確保鍵盤和屏幕處于正確的高度.可知,下句應(yīng)該是"如果它們不是在正確的高度,你會得到背痛.",選D.
72.答案:A.選句題.根據(jù)上句If you wear glasses,make sure these glasses are correct for using the computer.如果你戴眼鏡,請確保這些眼鏡對使用電腦來說是正確的.可知,下句應(yīng)是"當(dāng)使用電腦時,有些人使用不同的眼鏡".選A.

點評 選句填空,要注重句子與句子之間、段落與段落之間邏輯關(guān)系以及對篇章的整體理解.結(jié)合語境,根據(jù)所給句子,選擇合適的答案.

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