The air bag is a piece of safety equipment in cars. It was first designed by John W. Hetrick in 1952. Like many inventions, he came up with the idea as a result of an event that had occurred in his life. He says:
“In the spring of 1952, my wife, my seven-year-old daughter, Joan, and I were out for a Sunday drive in our 1948 Chrysler Windsor. About three miles outside Newport we were watching for deer jumping across the road. Suddenly, there was a large rock in our path. I hit the brakes and we went into a ditch(壕沟).
“As I applied the brakes, both my wife and I threw our hands up to keep our daughter from hitting the car. There was soft mud in the ditch, so the car wasn’t damaged, and no one was hurt.”
“During the ride home I couldn’t stop thinking about the accident. I asked myself,‘Why couldn’t some object come out to stop you from striking the inside of the car?’As soon as I got home that night I drew some sketches(草图). Each evening for the following two weeks, I’d add or reduce something from the sketches.”
Hetrick applied an event he had observed while in the Navy to the design of the air bag. He was repairing a torpedo(鱼雷) which had a cloth covering. When the compressed（压缩的） air that was in the torpedo was let out, the covering was suddenly filled with air and was shot to the ceiling.
With this knowledge, he developed his design until he was able to obtain a patent on the invention on August 5, 1952. The idea was similar to the air bag designs of today. Compressed air is stored in a container and when a traffic accident occurs and the car slows down at a rapid enough rate, the air will be released into the air bag. The idea was ingenious, but Hetrick’s air bag never would have functioned properly. It was really a breakthrough, but it would require years and years of designing and testing by some top car designers before it could be used.
【小题1】The car accident Hetrick was involved in ________.

A．damaged his car	B．happened in 1948
C．was caused by a deer	D．caused no harm to his family

【小题2】Hetrick’s experience in the Navy________.

A．turned out to be dangerous	B．was helpful to his invention
C．involved designing torpedoes	D．inspired him to design an air bag

【小题3】The underlined word “ingenious” in the last paragraph is closest in meaning to _______.

【小题4】What do we know about the air bag Hetrick designed?

A．It came into use in the 1950s.	B．It performed perfectly in car accidents.
C．It prepared the way for air bags nowadays.	D．It took Hetrick about two months to develop it.

【小题5】The text is mainly about ____.

A．the great inventor Hetrick	B．The invention of air bags
C．a terrible car accident	D．road safety in the 1950s

The air bag is a piece of safety equipment in cars. It was first designed by John W. Hetrick in 1952. Like many inventions, he came up with the idea as a result of an event that had occurred in his life. He says:

“In the spring of 1952, my wife, my seven-year-old daughter, Joan, and I were out for a Sunday drive in our 1948 Chrysler Windsor. About three miles outside Newport we were watching for deer jumping across the road. Suddenly, there was a large rock in our path. I hit the brakes and we went into a ditch(壕沟).

“As I applied the brakes, both my wife and I threw our hands up to keep our daughter from hitting the car. There was soft mud in the ditch, so the car wasn’t damaged, and no one was hurt.”

“During the ride home I couldn’t stop thinking about the accident. I asked myself,‘Why couldn’t some object come out to stop you from striking the inside of the car?’As soon as I got home that night I drew some sketches(草图). Each evening for the following two weeks, I’d add or reduce something from the sketches.”

Hetrick applied an event he had observed while in the Navy to the design of the air bag. He was repairing a torpedo(鱼雷) which had a cloth covering. When the compressed（压缩的） air that was in the torpedo was let out, the covering was suddenly filled with air and was shot to the ceiling.

With this knowledge, he developed his design until he was able to obtain a patent on the invention on August 5, 1952. The idea was similar to the air bag designs of today. Compressed air is stored in a container and when a traffic accident occurs and the car slows down at a rapid enough rate, the air will be released into the air bag. The idea was ingenious, but Hetrick’s air bag never would have functioned properly. It was really a breakthrough, but it would require years and years of designing and testing by some top car designers before it could be used.

1.The car accident Hetrick was involved in ________.

A．damaged his car B．happened in 1948

C．was caused by a deer D．caused no harm to his family

2.Hetrick’s experience in the Navy________.

A．turned out to be dangerous B．was helpful to his invention

C．involved designing torpedoes D．inspired him to design an air bag

3.The underlined word “ingenious” in the last paragraph is closest in meaning to _______.

A．creative B．ridiculous C．crazy D．complex

4.What do we know about the air bag Hetrick designed?

A．It came into use in the 1950s. B．It performed perfectly in car accidents.

C．It prepared the way for air bags nowadays. D．It took Hetrick about two months to develop it.

5.The text is mainly about ____.

A．the great inventor Hetrick B．The invention of air bags

C．a terrible car accident D．road safety in the 1950s

The air bag is a piece of safety equipment in cars. It was first designed by John W. Hetrick in 1952. Like many inventions, he came up with the idea as a result of an event that had occurred in his life. He says:
“In the spring of 1952, my wife, my seven-year-old daughter, Joan, and I were out for a Sunday drive in our 1948 Chrysler Windsor. About three miles outside Newport we were watching for deer jumping across the road. Suddenly, there was a large rock in our path. I hit the brakes and we went into a ditch(壕沟).
“As I applied the brakes, both my wife and I threw our hands up to keep our daughter from hitting the car. There was soft mud in the ditch, so the car wasn’t damaged, and no one was hurt.”
“During the ride home I couldn’t stop thinking about the accident. I asked myself,‘Why couldn’t some object come out to stop you from striking the inside of the car?’As soon as I got home that night I drew some sketches(草图). Each evening for the following two weeks, I’d add or reduce something from the sketches.”
Hetrick applied an event he had observed while in the Navy to the design of the air bag. He was repairing a torpedo(鱼雷) which had a cloth covering. When the compressed（压缩的） air that was in the torpedo was let out, the covering was suddenly filled with air and was shot to the ceiling.
With this knowledge, he developed his design until he was able to obtain a patent on the invention on August 5, 1952. The idea was similar to the air bag designs of today. Compressed air is stored in a container and when a traffic accident occurs and the car slows down at a rapid enough rate, the air will be released into the air bag. The idea was ingenious, but Hetrick’s air bag never would have functioned properly. It was really a breakthrough, but it would require years and years of designing and testing by some top car designers before it could be used

1.
The car accident Hetrick was involved in ______.
1. A.
  damaged his car
2. B.
  happened in 1948
3. C.
  was caused by a deer
4. D.
  caused no harm to his family
2.
Hetrick’s experience in the Navy______.
1. A.
  turned out to be dangerous
2. B.
  was helpful to his invention
3. C.
  involved designing torpedoes
4. D.
  inspired him to design an air bag
3.
The underlined word “ingenious” in the last paragraph is closest in meaning to ______.
1. A.
  creative
2. B.
  ridiculous
3. C.
  crazy
4. D.
  complex
4.
What do we know about the air bag Hetrick designed?
1. A.
  It came into use in the 1950s
2. B.
  It performed perfectly in car accidents
3. C.
  It prepared the way for air bags nowadays
4. D.
  It took Hetrick about two months to develop it
5.
The text is mainly about______.
1. A.
  the great inventor Hetrick
2. B.
  The invention of air bags
3. C.
  a terrible car accident
4. D.
  road safety in the 1950s

For 19 years, the owl researcher, Denver Holt, has journeyed to Barrow, Alaska, each summer to map out the relationship between lemmings （旅鼠） that crawl across the tundra （冻原） and snowy owls that hunt them from above．

As he prepares for his 20th field season in the Arctic, he says that the snowy owl has a role to play in understanding ecological changes in one of the fastest changing places in the world．"When lemmings are doing well, everything is doing well," Mr．Holt said．"If climate change results in habitat （栖息地） changes and it affects the lemmings, it will show up in the snowy owls because 90 percent of their diet is lemmings．The owls are the key to everything else．"

Twenty years of data provides an unusually deep look at the animal's population trends．And more research on snowy owls in other parts of the world ?they are found throughout the Arctic could flag changes in the global arctic ecosystem without the need for any other markers．

"It's a believable point," ．．said John W．Fitzpatrick, director of the Cornell Lab of Qrthinology at Cornell University．"Systems are difficult, and if we have an easily accessible marker for the system beneath it, that's a really good thing, because we can measure cheaply and easily how an ecosystem is doing．It gives us a quick understanding of the situation．"

There is an unscientific reason to study the snowy owl as well, Mr．Holt says．There is something interesting about owls．"People pay attention to owls more than other birds because they look like us," he said．'They have a symmetrical （对称的）face, eyes facing forward, a round, flat face and a round head with feathers that look like hair．"

63．From the passage, we know that lemmings ____．

　　　 A．live mostly on snowy owls　　　　　　　 B．often change their habitat

　　　 C．are increasing rapidly these days　　　　　 D．can affect the life of snowy owls

64．Which of the following is TRUE according to the passage?

　　　 A．Mr．Holt goes to the Arctic to study snowy owls every winter．

　　　 B．Climate change has a direct influence on snowy owls．

　　　 C．John W．Fitzpatrick thought Mr．Holt's research and findings were useful and meaningful．

　　　 D．People study snowy owls just for scientific research．

65．The underlined word "flag" in the passage is closest in meaning to "____"．

　　　 A．influence　　　 B．mark　　　　　　　　　 C．measure　　　　　　 D．cause

66．What is the best title for this passage?

A．Mr．Holt's Research on Ecological Changes 　　　　　　　　　　　

B．Changes in Snowy Owls

C．Snowy Owls And Eco-changes　　　　　　　　　　　　　　　　

D．Reasons to Study Snowy Owls

The air bag is a piece of safety equipment in cars. It was first designed by John W. Hetrick in 1952. Like many inventions, he came up with the idea as a result of an event that had occurred in his life. He says:

“In the spring of 1952, my wife, my seven-year-old daughter, Joan, and I were out for a Sunday drive in our 1948 Chrysler Windsor. About three miles outside Newport we were watching for deer jumping across the road. Suddenly, there was a large rock in our path. I hit the brakes and we went into a ditch(壕沟).

“As I applied the brakes, both my wife and I threw our hands up to keep our daughter from hitting the car. There was soft mud in the ditch, so the car wasn’t damaged, and no one was hurt.”

“During the ride home I couldn’t stop thinking about the accident. I asked myself,‘Why couldn’t some object come out to stop you from striking the inside of the car?’As soon as I got home that night I drew some sketches(草图). Each evening for the following two weeks, I’d add or reduce something from the sketches.”

Hetrick applied an event he had observed while in the Navy to the design of the air bag. He was repairing a torpedo(鱼雷) which had a cloth covering. When the compressed（压缩的） air that was in the torpedo was let out, the covering was suddenly filled with air and was shot to the ceiling.

With this knowledge, he developed his design until he was able to obtain a patent on the invention on August 5, 1952. The idea was similar to the air bag designs of today. Compressed air is stored in a container and when a traffic accident occurs and the car slows down at a rapid enough rate, the air will be released into the air bag. The idea was ingenious, but Hetrick’s air bag never would have functioned properly. It was really a breakthrough, but it would require years and years of designing and testing by some top car designers before it could be used.

66. The car accident Hetrick was involved in ________.

A. damaged his car B. happened in 1948

C. was caused by a deer D. caused no harm to his family

67. Hetrick’s experience in the Navy________.

A. turned out to be dangerous B. was helpful to his invention

C. involved designing torpedoes D. inspired him to design an air bag

68. The underlined word “ingenious” in the last paragraph is closest in meaning to _______.

A. creative B. ridiculous C. crazy D. complex

69. What do we know about the air bag Hetrick designed?

A. It came into use in the 1950s. B. It performed perfectly in car accidents.

C. It prepared the way for air bags nowadays. D. It took Hetrick about two months to develop it.

70. The text is mainly about ____.

A. the great inventor Hetrick B. The invention of air bags

C. a terrible car accident D. road safety in the 1950s

The car accident Hetrick was involved in ______.

Hetrick’s experience in the Navy______.

The underlined word “ingenious” in the last paragraph is closest in meaning to ______.

What do we know about the air bag Hetrick designed?

The text is mainly about______.

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