1．Electrical Fire Safety TipsOn any given day，it's likely that most people use several different electrical devices（裝置）．With electric devices being so common in modern homes，it's easy to forget that there are very real risks and angers associated with their use．Take the time to go over the rules of safe operation and make sure that everyone in your home is aware of them in order to prevent unnecessary exposure to harms and safety risks．
When an electrical short or spark does happen，it is very important to understand what to do to prevent or put out an electrical fire to keep the damage from spreading．You should，of course，call 911or other appropriate emergency services immediately in case of electrical injury or fire．The United States Fire Administration （USFA） of the Federal Emergency Management Agency （FEMA） offers a number of tips for preventing electrical fires．
◎Do not allow children to play close to small or large electrical devices．
◎Replace any tools that send out even slight electric shocks．
◎Replace any light switches that have a tendency to flash．
◎Replace any light switches that are hot to the touch．
◎Avoid overloading extension cords，sockets and plugs．
◎Do not force a three-prong plug into a two-receptacle socket．
◎Know where fuse（保險絲）boxes and circuit（電路）breakers are located as well as how to properly operate them．
◎Never attempt electrical repairs or rewiring'without proper Certification and experience．
◎Do not put water on an electrical fire； use a dry fire extinguisher（滅火器）or baking soda instead．
Even though electricity is ordinary，there is still quite a bit of danger associated with improper use．Carefully observe all safety measures when using electricity to keep yourself and your family safe．
21．Why is it easy to ignore the dangers of electricity？B
A．It is safe enough at homes．
B．People are too familiar with it．
C．People know well how to use it．
D．Few people know the safe rules．
22．What does Paragraph 2 mainly talk about？D
A．What to do to keep your home safe．
B．When to call a fire station for help．
C．How to avoid electricity failures at home．
D．How to deal with electricity failures correctly．
23．When should you change your switch for a new one？A
A．It feels hot．
B．It is at the reach of your kid．
C．It is not the most advanced one．
D．It doesn't have a long power line．
分析 本文是一篇廣告布告類閱讀．文章主要介紹了用電安全的問題．簡單介紹了人們?nèi)菀缀雎噪姷奈：Φ脑�，如何正確處理停電問題等．作者還給出了一些安全用電的建議．
解答 21-23 BDA
21．B．細節(jié)理解題．根據(jù)"With electric devices being so common in modern homes，it's easy to forget that there are very real risks and angers associated with their use"可知人們?nèi)菀缀雎噪姷奈：κ且驗槿藗儗λ煜ち耍蔬xB．
22．D．段落大意題．根據(jù)"When an electrical short or spark does happen，it is very important to understand what to do to prevent or put out an electrical fire to keep the damage from spreading．"可知第二段主要講述的是如何正確處理停電問題．故選D．
23．A．推理判斷題．根據(jù)"Replace any light switches that are hot to the touch．"可知當開關發(fā)熱的時候你就應該換個新的啦．故選A．
點評 本文是一篇廣告布告類閱讀．文章主要介紹了用電安全的問題．此類題型主要考查學生的細節(jié)理解和推理判斷能力．細節(jié)理解題是針對文中某個細節(jié)、某句話或某部分具體內(nèi)容設置問題，所以在做細節(jié)理解題時要結合原文和提干有針對性的找出相關語句進行仔細分析，再結合選項選出正確答案．在做推理判斷題時不要以個人的主觀想象代替文章的事實，要聯(lián)系上下文根據(jù)文章事實進行合乎邏輯的推理判斷．在做段落大意題時考生首先要仔細閱讀短文，完整了解信息，準確把握作者觀點，確定段意．
