Question

4．Emergencies（緊急情況）don't happen very often．But when they do，you want to get help first．No one wants to spend time looking up the phone numbers．
  In 1568，the Untied States government wanted one number that people could call for emergencies．They decided that 911 was easy to remember and people could dial it quickly．The very first 911 call was made on February 16，1965．in Alibama．Today，911 is used for emergencies in most parts of the United States and many parts of Canada．
  Other countries may use other numbers．In Great Britain，it's 959．If you're not sure which emergency number is used in your area，check your phone book．
  When to call
  Never call 911 as a joke or just to see what might happen．The only time you should call 911 is if a person is badly hurt or in danger right now!
  When in an emergency call
  When you dial the 911 operator（接線員），it's always OK to give out your information．Speak slowly and clearly when you explain what's happening．What happened？Where are you？Who needs help？
  Don't hang up（掛斷）！
  If you have to call 911，do not hang up until the operator tells you it's OK to do so，That way，you can be sure that the operator has all the information to offer help fast．
  A dog named Faith dialed 911 when her owner who was in a wheelchair fell and needed help．She had been taught to use a speed-dial（快遞撥號）function．
46．The emergency number 911 was first used inBin the USA．
A.1958   B.1968  C.1978   D.1999
47．Why was 911 chose to be the emergency call？C
A．Because other countries also used the number．
B．Because it was suggested by the phone company．
C．Because it was simple and easy to remember and dial．
D．Because it was also used in many parts of Canada．
48．People can't call 911 whenB．
A．a(chǎn) bus hits a boy badly 
B．a(chǎn) girl feels bored 
C．a(chǎn)n old lady falls off the stairs，unable to stand up
D．some people can't get out of a burning building
49．Which is the right thing to do？A
A．Wait for the operator's words to end the call．
B．Tell the operator what his happened and hang up．
C．Test if your phone can get through to 911．
D．Tell the operator everything as quickly as possible．
50．Which is NOT true according to the passage？D
A.911 is an emergency number almost throughout the United States．
B．We haven't got a worldwide univer（通用的）emergency number yet．
C．Usually phone books list emergency call numbers．
D．The dog Faith pressed the three numbers 9-1-1．

Answer 1

分析 突發(fā)事件（緊急情況）并不是經(jīng)常發(fā)生的．但是當它們發(fā)生時，你想在第一時間得到幫助．沒有人愿意花時間查找電話號碼．
1568年，美國政府需要一個能撥打緊急情況的號碼，他們決定911容易記住并且人們可以快撥．第一個911電話是在1968年2月16日的阿拉巴馬州．今天，911被用于在美國大部分地區(qū)和加拿大的許多地方的突發(fā)事件．
其他國家可能使用其他數(shù)字，在英國，它是959，如果你不確定在你的地區(qū)使用的是哪個突發(fā)情況的號碼，請核實你的電話簿．
什么時候打電話
不要作為一個笑話或只是想看看有什么可能發(fā)生的事打911，你應該打電話給911的唯一時間是如果一個人被嚴重傷害或正在危險中！
在緊急呼叫時
當你撥打911接線員，傳達出你的信息就好，當你解釋發(fā)生了什么事的時候說話要緩慢而清晰．發(fā)生了什么？你在哪里？誰需要幫助？
不要掛斷！
如果你必須撥打電話911，不要掛斷，直到接線員告訴你可以掛斷電話了你再掛斷．這樣，你就可以確信接線員已經(jīng)有了所有提供快速幫助的信息．
一只名叫信仰的狗當她的主人在輪椅上摔倒了，需要幫助時撥打了911．她曾經(jīng)被教過使用快速撥號功能．

解答 46．B 細節(jié)理解題．題干意為急救電話號碼首次在美國使用是在哪年？由第二段第三句The very first 911 call was made on February 16，1968．in Alibama．可知是在1968年首次使用的．故選B．
47．C 細節(jié)理解題．由第二段第二句They decided that 911 was easy to remember and people could dial it quickly．可知，因為911容易被記住，人們能快速撥出．故選C．
48．B 細節(jié)理解題．由文中The only time you should call 911 is if a person is badly hurt or in danger right now!可知只有B項與個人情緒有關(guān)，不屬于緊急情況的范疇，故選B．
49．A 綜合理解題．由倒數(shù)第二段第一句If you have to call 911，do not hang up until the operator tells you it's OK to do so，可知B項錯誤；由第四段第一句Never call 911 as a joke or just to see what might happen．可知C項錯誤；由倒數(shù)第三段第二句Speak slowly and clearly when you explain what's happening．可知D項錯誤．由第六段的第一句If you have to call 911，do not hang up until the operator tells you it's OK to do so可知A說法正確，故選A．
50．D 推理判斷題．題干意為：根據(jù)短文內(nèi)容，那一項不正確？由最后一段的內(nèi)容A dog named Faith dialed 911 when her owner who was in a wheelchair fell and needed help．She had been taught to use a speed-dial（快速撥號）function．可知這只狗不是按下了911三個數(shù)字，而是使用了電話的快速撥號功能，表述錯誤．故選D．

點評 這是一篇說明文，介紹了911電話的有關(guān)情況．題目大多涉及細節(jié)理解方面．做這類題一定要向原文找答案，找出相對應的句子，根據(jù)意義去選擇．還要具備一定的推理判斷能力，其出發(fā)點還是從原句找到推理的線索，例如50題．