You never see him, but they're with you every time you fly. They record where you are going, how fast you're traveling and whether everything on your airplane is functioning normally. Their ability to withstand almost any disaster makes them seem like something out of a comic book. They're known as the black box.
When planes fall from the sky, as a Yemeni airliner did on its way to Comoros Islands in the India ocean June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潛水艇) detected the device's homing signal five days later, the discovery marked a huge step toward determining the cause of a tragedy in which 152 passengers were killed.
In 1958, Australian scientist David Warren developed a flight-memory recorder that would track basic information like altitude and direction. That was the first mode for a black box, which became a requirement on all U.S. commercial flights by 1960. Early models often failed to withstand crashes, however, so in 1965 the device was completely redesigned and moved to the back of the plane – the area least subject to impact – from its original position in the landing wells (起落架艙). The same year, the Federal Aviation Authority required that the boxes, which were never actually black, be painted orange or yellow to aid visibility.
Modern airplanes have two black boxes: a voice recorder, which tracks pilots' conversations, and a flight-data recorder, which monitors fuel levels, engine noises and other operating functions that help investigators reconstruct the aircraft's final moments. Placed in an insulated (隔絕的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can resist massive force and temperatures up to 2,000℉. When submerged, they're also able to emit signals from depths of 20,000 ft. Experts believe the boxes from Air France Flight 447, which crashed near Brazil on June 1,2009, are in water nearly that deep, but statistics say they're still likely to turn up. In the approximately 20 deep-sea crashes over the past 30 years, only one plane's black boxes were never recovered.
【小題1】What does the author say about the black box?
A.It ensures the normal functioning of an airplane. |
B.The idea for its design comes from a comic book. |
C.Its ability to resist disasters is incredible. |
D.It is an indispensable device on an airplane. |
A.Data for analyzing the cause of the crash. |
B.The total number of passengers on board. |
C.The scene of the crash and extent of the damage. |
D.Homing signals sent by the pilot before the crash. |
A.New materials became available by that time. |
B.Too much space was needed for its installation. |
C.The early models often got damaged in the crash. |
D.The early models didn't provide the needed data. |
A.To distinguish them from the colour of the plane. |
B.To caution people to handle them with care. |
C.To make them easily identifiable. |
D.To conform to international standards. |
A.There is still a good chance of their being recovered. |
B.There is an urgent need for them to be reconstructed. |
C.They have stopped sending homing signals. |
D.They were destroyed somewhere near Brazil. |
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科目:高中英語 來源:2010-2011年遼寧省沈陽二中高二下學(xué)期期末考試英語 題型:填空題
根據(jù)短文內(nèi)容,從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。
【小題1】 You don’t show your secret personality when you’re awake because you can control your behavior, but when you’re asleep, your sleeping position shows the real you. __ 【小題2】 The important position is the one that you go to sleep in.
If you go to sleep on your back, you’re a very open person. You normally trust people and you are easily influenced by fashion or new ideas. You don’t like to upset people, so you never express your real feelings. 【小題3】
If you sleep on your stomach, you are a rather secretive person. You worry a lot and you’re always easily upset. You’re very stubborn, but you aren’t very ambitious. 【小題4】 __ This means that you enjoy having a good time.
If you sleep on your side, you have usually got a well-balanced personality. 【小題5】
You’re usually careful. You have a confident personality. You sometimes feel anxious, but you don’t often get depressed. You always say what you think even if it annoys people.
A.You’re quite shy and you aren’t very confident. |
B.You know your strengths and weaknesses. |
C.Normally people seldom change their sleeping position. |
D.Everyone has got two personalities — the one that is shown to the world and the other that is |
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科目:高中英語 來源:2012-2013學(xué)年青海省高三上學(xué)期期中考試英語試卷(解析版) 題型:閱讀理解
Justin’s bedroom was so full of flat bicycle tires, bent tennis rackets, deflated basketballs, and games with missing pieces that you could hardly get in the door. His parents pleaded with him to clean out his room.
“What use is a fish tank with a hole in the bottom?” his father asked. But Justin simply smiled and repeated his motto, “Never throw anything out, you never know when it might come in handy.”
When Justin was away from home, he always carried his blue backpack — a smaller bag of his bedroom — a place to store the many objects that he collected. It was so worn and stretched that it hardly resembled a backpack anymore.
Justin had earned a reputation for figuring things out and getting people out of otherwise hopeless situations. Many of his classmates and neighbors sought him out when they needed help with a problem. On the first day of school, his friend Kenny, came looking for Justin.
“Do you think you have something in your backpack that could help me remember my locker combination (箱子密碼)?” he asked. “I lost the piece of paper it was written on. I have a science class in two minutes and if I’m late on the first day it’ll make me look bad for the rest of the year.” Kenny looked really worried.
“Relax,” Justin said, taking his backpack off and opened it. “Remember how you borrowed my notebook in my home to write the combination down? Well, I know how I can recover what you wrote.”
He took the notebook and a soft lead pencil out of his backpack. The page that Kenny had written on had left faint marks on another page in the notebook. Justin held the pencil on its side and rubbed it lightly over the marks. Slowly but surely the numbers of the locker combination appeared in white.
“That’ s amazing!” Kenny said, “I owe you one.” And he dashed off to open his locker.
It was just another day in the life of the boy whose motto was “Never throw anything out; you never know when it might come in handy.”
1.Why is Justin’s room in such a mess?
A. He always forgets to clean it.
B. He never throws anything out.
C. He has no time to clean it.
D. He shares the room with his brother.
2.In what way is Justin’s blue backpack used?
A. He uses it as a place to store collected objects.
B. He uses it to carry his books and sports equipment.
C. His parents tell him to clean it all the time.
D. He carries it to remind others of his ability.
3.The underlined phrase “pleaded with” means .
A. ignored B. asked C. pushed D. admired
4.How does Kenny feel toward Justin?
A. Annoyed B. Disinterested C. Grateful D. Angry
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科目:高中英語 來源:陜西省20092010學(xué)年高二下學(xué)期期末考試試題(英語) 題型:完型填空
第三節(jié):完形填空 (共 20 小題;每小題 1分,滿分 20 分)
閱讀下面短文,從短文后所給各題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出最佳選項(xiàng)。
Not long ago, I had a hard week at work. __16__ just kept popping up(出現(xiàn)) everywhere and I was struggling to keep from __17__ my cool. I felt like I was at the __18__ point.
One day, I made a trip across town to the store. After I __19__, I realized I had left my purse with credit cards at home. __20__, I had a small amount of cash in my pocket, so I __21__ it, my coupons(優(yōu)惠券) and went inside. The store was really __22__, but I just found what I needed, waiting for the cashier(收銀員) to check out my __23__. I waited and waited, meanwhile my anger grew. I had a bad day and all I wanted to do was go home, but I was __24__ in the line.
Finally, I got to the front, but the cashier didn’t __25__ my coupons. I was upset because I had used __26__ coupons there before. It didn’t __27__ me. I would just pay in cash. Then the cashier said it was 10 dollars. SHOCK! I was a little __28__. Now I was mad at myself for forgetting my purse and only taking a small amount of cash. Without a credit card or anything else, I __29__ my things and started to go back out to my car, wondering to myself why everything had __30__ for me.
Just as I was headed out, an employee __31__ me and said a lady in the __32__ had paid the difference for me and left. __33__ the amount she paid was small, the act was huge. A stranger, whom I had never met, completely changed my attitude with her __34__. Maybe next time I see someone having a __35__ day, I’ll do the same as her. After all, you never know whose day you might change.
16. A. Problems B. Chances C. Stories D. Suggestions
17. A. enjoying B. gaining C. losing D. continuing
18. A. growing B. boiling C. turning D. beginning
19. A. adjusted B. practiced C. returned D. parked
20. A. Finally B. Thankfully C. Gradually D. lately
21. A. opened B. closed C. grabbed D. found
22. A. quite B. big C. clean D. busy
23. A. purses B. goods C. cards D. pockets
24. A. stuck B. served C. followed D. defeated
25. A. pay B. use C. accept D. fill
26. A. extra B. different C. ordinary D. similar
27. A. disappoint B. change C. move D. surprise
28. A. foolish B. short C. proud D. curious
29. A. made B. did C. collected D. left
30. A. ended B. failed C. passed D. disappeared
31. A. stopped B. recognized C. saw D. helped
32. A. room B. corner C. line D. company
33. A. Unless B. Once C. Although D. Since
34. A. intelligence B. humor C. smile D. generosity
35. A. tough B. lonely C. lucky D. simple
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科目:高中英語 來源:浙江省09-10學(xué)年高一下學(xué)期期中試題英語 題型:完型填空
完型填空(共20小題;每小題1分,滿分20分)
閱讀下面短文,掌握其大意,然后從41-60各題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出最佳選項(xiàng)。
I ran into a stranger as he passed by. “I’m so sorry!” was my reply. Then he said, “Excuse me too… I wasn’t 41 watching for you.” We were very polite, this stranger and I. Then we went 42 our way after saying goodbye.
But at 43 , a different story is told. How we treat our loved ones, young and old. Later in the kitchen, as I 44 the meal, my daughter walked up to me, very still. When I turned, I 45 knocked her down. “Get out of the way!” I shouted with a frown (皺眉). She stepped away silently, with her little heart 46 . I didn’t realize how rudely I had spoken.
That night, when I lay 47 in bed, God’s quiet voice spoke to me and said, “While 48 with a stranger, you are calm and polite, but with those you love, you are QUICK to excite… Go look around on the kitchen floor, you’ll find some flowers there by the 49 . Those are the flowers she brought for you. She 50 them herself — pink, yellow, and your favorite blue. She stood there quietly and you never saw the 51 in her eyes.”
By this time, I felt sad and small and now my own tears began to fall. I quietly went and knelt (跪) by her 52 . “Wake up, my,” I said. “Are these the flowers you picked up for me?” She smiled, “I found them out by the tree, I 53 them in a napkin(紙巾), just for you. I knew you’d like them, especially the 54 .” I said, “I am so sorry that I missed them today… And I 55 have fussed (大驚小怪) at you that way…”
And she whispered, “Mommy, that’s OK… I still love you 56 .” I hugged her and said, “I love you, too and I LOVE the flowers.”
Do you know that: if you die tomorrow, the 57 you are working for could easily replace you in a matter of days. But the family you leave 58 will feel the loss for the rest of their lives. And come to think of it, we pour ourselves more into our 59 than into our families--- an unwise investment (投資) indeed.
Remember that 60 =" (F)ATHER" + (A)ND + (M)OTHER + (I ) + (L)OVE + (Y)OU.
41. A. ever B. even C. just D. right
42. A. to B. in C. on D. for
43. A. school B. work C. home D. office
44. A. cooked B. had C. ate D. took
45. A. already B. hardly C. rudely D. nearly
46. A. lost B. missed C. beaten D. broken
47. A. asleep B. awake C. afraid D. alive
48. A. dealing B. meeting C. going D. talking
49. A. floor B. kitchen C. window D. door
50. A. grew B. bought C. picked D. fetched
51. A. tears B. expressions C. smiles D. joy
52. A. desk B. bed C. body D. knees
53. A. wrapped B. covered C. put D. help
54. A. pink B. yellow C. blue D. black
55. A. needn’t B. shouldn’t C. mustn’t D. can’t
56. A. indeed B. besides C. anything D. anyway
57. A. company B. country C. place D. state
58. A. for B. with C. behind D. to
59. A. books B. loss C. meal D. work
60. A. RESPECT B. WARMTH C. FAMILY D. FRIEND
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科目:高中英語 來源:2010-2011學(xué)年河南省高三上學(xué)期第二次月考英語卷 題型:閱讀理解
Can you imagine a stranger will read your e-mails without your permission or scan the website you’ve visited or perhaps someone will casually glance through your credit card purchases or cell phones bills? All of the things may happen to you one day.
In fact, it’s likely that some of these things have already happened to you. Who would watch you without your permission? It might be a spouse, a girlfriend, a marketing company, a boss, a cop or a criminal. Whoever it is, they will see you in a way you never intended to be seen or even do something that may bring a disaster to you.
Psychologists tell us boundaries are healthy, and that it’s important to reveal to friends, family and lovers at appropriate times. But few boundaries remain nowadays. The digital bread crumbs you leave everywhere make it easy for strangers to know who you are, where you are and what you like. In some cases, a simple Google search can leak the deepest thought in your mind. Like it or not, increasingly we live in a world where you simply cannot keep a secret.
The key question is: Does that matter? For many Americans, the answer apparently is “No”.
When opinion polls ask Americans about privacy, most of them say they are really concerned about losing it. And 60 percent of the respondents say they feel their privacy is “slipping away, and that bothers me”.
But people say one thing and do another. Only a small of Americans change any behaviors in an effort to preserve their privacy. Few people turn down a discount at tollbooths(收費(fèi)站) to avoid using the EZ-Pass system that track automobile movements. Privacy economist Acquisti has run a series of tests that reveal people will give up personal information such as telephone number, address, or social security numbers just to get their hands on a pitiful 50-cent-off coupon(優(yōu)惠券). But privacy does matter—at least sometimes. It’s like health; when you have it, you don’t notice it. Only when it’s gone do you wish you’d done more to protect it. Without privacy, one will be naked in front of others.
1.What would psychologists advise on the relationships between friends?
A.Friends should open their hearts to each other. |
B.Friends should always be faithful to each other. |
C.There should be a distance even between friends. |
D.There should be fewer quarrels between friends. |
2.Why does the author say “we live in a world where you simply cannot keep a secret”?
A.Modern society has finally developed into an open society. |
B.People leave traces around when using modern technology. |
C.There are always people who are curious about others’ affairs. |
D.Many search engines profit by revealing people’s identities. |
3.What should be the best title for the text?
A.No Privacy, No Health |
B.Treasure Your Privacy |
C.Boundaries are Important between Friends |
D.The information Age Has Its Own Shortcomings |
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