摘要: The modern equipment, which over there, will be used wild life by that research center. A. is making; protecting B. made; for protecting C. is being made; to protect D. is making; to protecting

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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 endure 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 on June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the box'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 box was completely redesigned and moved to the rear of the plane – the area least subject to impact – from its original position in the landing wells (起落架舱). 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 (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can stand 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.

1.What does the author say about the black box?

A.It is an indispensable device on an airplane. 

B.The idea for its design comes from a comic book.

C.Its ability to avoid disasters is incredible.

D.It ensures the normal functioning of an airplane.

2.What does the underlined word in the 3rd paragraph mean? 

A.witness           B.experience        C.resist            D.ensure

3.Why was the black box redesigned in 1965?

A.New materials became available by that time.

B.Too much space was needed for its installation.

C.The early models didn't provide the needed data.

D.The early models often got damaged in the crash.

4.What do we know about the black boxes from Air France Flight 447?

A.There is an urgent need for them to be reconstructed.

B.There is still a good chance of their being recovered. 

C.They have stopped sending homing signals.

D.They were destroyed somewhere near Brazil.

 

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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 endure 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 on June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the box'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 box was completely redesigned and moved to the rear of the plane – the area least subject to impact – from its original position in the landing wells (起落架舱). 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 (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can stand 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.
【小题1】What does the author say about the black box?

A.It is an indispensable device on an airplane. 
B.The idea for its design comes from a comic book.
C.Its ability to avoid disasters is incredible.
D.It ensures the normal functioning of an airplane.
【小题2】What does the underlined word in the 3rd paragraph mean? 
A.witness B.experienceC.resist D.ensure
【小题3】Why was the black box redesigned in 1965?
A.New materials became available by that time.
B.Too much space was needed for its installation.
C.The early models didn't provide the needed data.
D.The early models often got damaged in the crash.
【小题4】What do we know about the black boxes from Air France Flight 447?
A.There is an urgent need for them to be reconstructed.
B.There is still a good chance of their being recovered. 
C.They have stopped sending homing signals.
D.They were destroyed somewhere near Brazil.

查看习题详情和答案>>

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 endure 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 on June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the box'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 box was completely redesigned and moved to the rear of the plane – the area least subject to impact – from its original position in the landing wells (起落架舱). 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 (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can stand 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.

1.What does the author say about the black box?

A.It is an indispensable device on an airplane. 

B.The idea for its design comes from a comic book.

C.Its ability to avoid disasters is incredible.

D.It ensures the normal functioning of an airplane.

2.What does the underlined word in the 3rd paragraph mean? 

A.witness           B.experience        C.resist            D.ensure

3.Why was the black box redesigned in 1965?

A.New materials became available by that time

B.Too much space was needed for its installation.

C.The early models didn't provide the needed data.

D.The early models often got damaged in the crash.

4.What do we know about the black boxes from Air France Flight 447?

A.There is an urgent need for them to be reconstructed.

B.There is still a good chance of their being recovered. 

C.They have stopped sending homing signals.

D.They were destroyed somewhere near Brazil.

 

查看习题详情和答案>>

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 endure 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 on June 30, 2009, the black box is the best bet for identifying what went wrong. So when a French submarine (潜水艇) detected the box'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 box was completely redesigned and moved to the rear of the plane – the area least subject to impact – from its original position in the landing wells (起落架舱). 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 (隔绝的) case and surrounded by a quarter-inch-thick panels of stainless steel, the boxes can stand 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.
【小题1】What does the author say about the black box?

A.It is an indispensable device on an airplane. 
B.The idea for its design comes from a comic book.
C.Its ability to avoid disasters is incredible.
D.It ensures the normal functioning of an airplane.
【小题2】What does the underlined word in the 3rd paragraph mean? 
A.witness B.experienceC.resist D.ensure
【小题3】Why was the black box redesigned in 1965?
A.New materials became available by that time
B.Too much space was needed for its installation.
C.The early models didn't provide the needed data.
D.The early models often got damaged in the crash.
【小题4】What do we know about the black boxes from Air France Flight 447?
A.There is an urgent need for them to be reconstructed.
B.There is still a good chance of their being recovered. 
C.They have stopped sending homing signals.
D.They were destroyed somewhere near Brazil.

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请阅读下面短文,掌握其大意,然后从各题所给的四个选项(A、B、C、D)中,选出最佳选项,并在答题卡上将该选项的标号涂黑。

Earlier this week I was at a store after the holiday season. While waiting in line, I  31 a Dad who was stressed out with his two sons waiting in line to buy a car seat for the younger child.

  The father asked if he could buy the display model because it would be  32 than the others. The cashier  33  that he could buy the display model  34 that there was no box for it. He said that was just  35 with him.

  Then he asked if there were any additional coupons (优惠券) to bring the  36 down just a little bit more. The cashier was doing her best to  37 some coupons for this young father, but wasn’t  38 much of anything in her drawer.

  I used to be a people-watcher, but as I  39 this for about five minutes, I was beyond  40 to help. Before I could really think about it, I found myself digging through my 41  for the 10 to 15 dollars in coupons.

  But I found nothing. I gave him $20 cash. The father said he couldn’t  42  it, but appreciated my offer. The cashier was  43 in the same mode as I was in, wanting to help this young family and took the money toward his  44 with a smile on her face. The seat 45 coming to around $50 instead of the original $90.

  As the Dad collected his small children and began to  46 , he looked at me and said, “You really shouldn’t have done that but I thank you so much---you just made certain that we will all get to eat today.”

  My reply was simple. Be it  47 or years from now, simply do the same or something extra for someone else you don’t know, and that would  48 me tenfold (十倍地).

  The whole experience made me realize that such a small thing can have a huge  49 in the long run, as long as the chain isn’t  50 .

31. A. believed

B. noticed

C. heard

D. followed

32. A. bigger

B. taller

C. nicer

D. cheaper

33. A. expected

B. thought

C. replied

D. disagreed

34. A. if

B. but

C. until

D. unless

35. A. fine

B. wrong

C. hopeful

D. kind

36. A. profit

B. cost

C. product

D. business

37. A. find

B. print

C. save

D. borrow

38. A. arranging for

B. looking forward to

C. referring to

D. coming up with

39. A. reported

B. recorded

C. observed

D. felt

40. A. sad

B. moved

C. excited

D. surprised

41. A. model

B. books

C. pockets

D. gifts

42. A. appreciate

B. offer

C. receive

D. accept

43. A. hardly

B. obviously

C. fortunately

D. occasionally

44. A. order

B. attitude

C. appearance

D. method

45. A. lacked in

B. ended up

C. went on

D. came on

46. A. drive back

B. turn down

C. walk away

D. wake up

47. A. tomorrow

B. yesterday

C. afternoon

D. morning

48. A. praise

B. encourage

C. impress

D. repay

49. A. room

B. point

C. impact

D. shock

50. A. valuable

B. broken

C. tight

D. strong

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