摘要: A. pick out B. put out C. leave out D. keep out

网址:http://m.1010jiajiao.com/timu3_id_3006367[举报]

阅读理解

  An Australian-based scientist announced yesterday he had made a step forward in forensic(用于法庭的)DNA testing so that an individual can be identified by a single cell.

  Ian Findlay, from the Australian Genome Research Facility at the University of Queensland, said current DNA testing required 200 to 500 cells to gain a similar level of accuracy."What we have done has brought that down to one cell," Dr Findlay said after releasing details of his DNA testing technique at a Sydney conference.

  The technology could allow investigators to pick up DNA identities from plastic cards and even build up a complete history of the people who have handled a paper document.

  "You'd have to wear a space suit to stop yourself from leaving traces.You can identify cells on the paper, so you can work out where it's come from and who's touched it,” he said.

  The technique could also be used to trace the thrower of a punch(打孔)from cells left behind on the skin of their victim.Even the wearing of latex(橡胶)gloves would not help:small cells can pass through the gloves, and the constant flow of genetic material given off by the human body would leave further evidence.

  "We gained a skin cell from a document dating back 30 years and managed to gain a DNA fingerprint.DNA evidence can remain fresh for decades, perhaps even centuries," Dr Findlay said."The potential for this technology to solve unsolved crimes is great, "he said.

  But Dr Findlay, named scientist of the year in 1998 by the European Society of Human Genetics, said the new testing needed to be scientifically validated, which would take up to five years.

  He said, "There are serious consequences taking on technologies too early.The public has to be sure that they have the utmost confidence in the security and court systems."

(1)

The main advantage of the new technology is that ________.

[  ]

A.

it has brought down the cost of DNA testing

B.

a single cell can identify an individual

C.

a higher level of accuracy can be acquired with a single cell

D.

it needs less than 200 cells to gain a certain level of accuracy

(2)

The underlined word" validated" means ________.

[  ]

A.

proved true

B.

imagined good

C.

supposed commonly

D.

criticized strongly

(3)

According to Ian Findlay, the new technology can ________.

[  ]

A.

help to keep DNA evidence fresh for decades and even centuries

B.

make the process of DNA testing much more simplified

C.

help to pick up DNA identities more easily

D.

be widely used in five years at most

(4)

The last paragraph suggests that ________.

[  ]

A.

the immediate adopting of the technology may cause mistakes

B.

the public have acknowledged the new testing technology

C.

it is safe to put the new technology into use now

D.

Dr Findlay is quite sure of his new technology

(5)

The aim of the passage is to ________.

[  ]

A.

praise Ian Findlay for his work

B.

inform us of the wide use of DNA testing

C.

report a piece of interesting news

D.

tell us a recent improvement in DNA testing

查看习题详情和答案>>

Nanda sees a wearable computer as a handbag, one that’s built out of four-inch squares and triangles of fabric (织物), with tiny computer chips embedded (嵌入) in it. It looks, feels and weighs like your typical leather purse.
That’s where the similarities end: This bag can wirelessly keep track of your belongings and remind you, just as you’re about to leave the house, to take your wallet. It can review the weather report and suggest that you grab an umbrella. This purse can even upload your favorite songs onto your scarf (围巾).
Sure, a computing purse and scarf set may seem like the stuff of science fiction. But these devices (装置), part of next generation of wearable computers, could become common within a few years. DuPont created new super strong fibres that can conduct electricity and can be woven into ordinary-looking clothes. And the chipmaker developed chip packaging allowing wearable computers to be washed, even in the heavy-duty cycle.
As a result, these new wearable devices are different from the heavy and silly types of the recent past, which often required users to be wrapped in wires and type on their stomachs. Unlike the old types, these new wearable computers also make economic sense. When her bag becomes commercially available in two to three years, Nanda expects it will cost around $150, which is the price of an average leather purse.
Here’s how the bag works: You place a special radio-signal-transmitting chip onto your wallet. A similar radio in your purse picks up the signal and notifies you that you’ve forgotten to take your wallet. In turn, sensors on your purse’s handles will inform the computer that you’ve picked up the purse and are ready to go.
Already, these new kinds of wearable devices are applied in markets like auto repair, emergency services, medical monitoring-and even, increasingly, for consumers at large. Indeed, more people will want to cross that bridge in the coming years—making for a booming market for wearable computers that don’t look like something out of science fiction.
72. Which of the following describes a wearable computer?
A.It can be washed in washing machines.
B.It is much heavier than a leather purse.
C.It can download songs from the Internet.
D.It is made of clothes conducting electricity.
73. According to the passage, the new wearable computers         .
A.require users to operate on the stomach
B.pick up the signals through wires and chips
C.are being put to use in some different areas now
D.are smarter but more expensive than the old ones
74. What does the underlined sentence in the last paragraph mean?
A.The new wearable computers have become fashionable.
B.People would like to learn more about the new computers.
C.The idea of the purse-like computers comes from science fiction.
D.New wearable computers promise to sell well in the future.
75. The purpose of the passage is         .
A.to introduce a new kind of computer    
B.to explain the functions of computers
C.to compare different types of computers
D.to show how high technology affects our life

查看习题详情和答案>>

 

Nanda sees a wearable computer as a handbag, one that’s built out of four-inch squares and triangles of fabric (织物), with tiny computer chips embedded (嵌入) in it. It looks, feels and weighs like your typical leather purse.

That’s where the similarities end: This bag can wirelessly keep track of your belongings and remind you, just as you’re about to leave the house, to take your wallet. It can review the weather report and suggest that you grab an umbrella. This purse can even upload your favorite songs onto your scarf (围巾).

Sure, a computing purse and scarf set may seem like the stuff of science fiction. But these devices (装置), part of next generation of wearable computers, could become common within a few years. DuPont created new super strong fibres that can conduct electricity and can be woven into ordinary-looking clothes. And the chipmaker developed chip packaging allowing wearable computers to be washed, even in the heavy-duty cycle.

As a result, these new wearable devices are different from the heavy and silly types of the recent past, which often required users to be wrapped in wires and type on their stomachs. Unlike the old types, these new wearable computers also make economic sense. When her bag becomes commercially available in two to three years, Nanda expects it will cost around $150, which is the price of an average leather purse.

Here’s how the bag works: You place a special radio-signal-transmitting chip onto your wallet. A similar radio in your purse picks up the signal and notifies you that you’ve forgotten to take your wallet. In turn, sensors on your purse’s handles will inform the computer that you’ve picked up the purse and are ready to go.

Already, these new kinds of wearable devices are applied in markets like auto repair, emergency services, medical monitoring-and even, increasingly, for consumers at large. Indeed, more people will want to cross that bridge in the coming years—making for a booming market for wearable computers that don’t look like something out of science fiction.

1.Which of the following describes a wearable computer?

    A.It can be washed in washing machines.

    B.It is much heavier than a leather purse.

    C.It can download songs from the Internet.

    D.It is made of clothes conducting electricity.

2.According to the passage, the new wearable computers         .

    A.require users to operate on the stomach

    B.pick up the signals through wires and chips

    C.are being put to use in some different areas now

    D.are smarter but more expensive than the old ones

3.What does the underlined sentence in the last paragraph mean?

    A.The new wearable computers have become fashionable.

    B.People would like to learn more about the new computers.

    C.The idea of the purse-like computers comes from science fiction.

    D.New wearable computers promise to sell well in the future.

4.The purpose of the passage is         .

    A.to introduce a new kind of computer               

B.to explain the functions of computers

    C.to compare different types of computers           

D.to show how high technology affects our life

 

查看习题详情和答案>>

Nanda sees a wearable computer as a handbag, one that’s built out of four-inch squares and triangles of fabric (织物), with tiny computer chips embedded (嵌入) in it. It looks, feels and weighs like your typical leather purse.

That’s where the similarities end: This bag can wirelessly keep track of your belongings and remind you, just as you’re about to leave the house, to take your wallet. It can review the weather report and suggest that you grab an umbrella. This purse can even upload your favorite songs onto your scarf (围巾).

Sure, a computing purse and scarf set may seem like the stuff of science fiction. But these devices (装置), part of next generation of wearable computers, could become common within a few years. DuPont created new super strong fibres that can conduct electricity and can be woven into ordinary-looking clothes. And the chipmaker developed chip packaging allowing wearable computers to be washed, even in the heavy-duty cycle.

As a result, these new wearable devices are different from the heavy and silly types of the recent past, which often required users to be wrapped in wires and type on their stomachs. Unlike the old types, these new wearable computers also make economic sense. When her bag becomes commercially available in two to three years, Nanda expects it will cost around $150, which is the price of an average leather purse.

Here’s how the bag works: You place a special radio-signal-transmitting chip onto your wallet. A similar radio in your purse picks up the signal and notifies you that you’ve forgotten to take your wallet. In turn, sensors on your purse’s handles will inform the computer that you’ve picked up the purse and are ready to go.

Already, these new kinds of wearable devices are applied in markets like auto repair, emergency services, medical monitoring-and even, increasingly, for consumers at large. Indeed, more people will want to cross that bridge in the coming years—making for a booming market for wearable computers that don’t look like something out of science fiction.

72. Which of the following describes a wearable computer?

       A.It can be washed in washing machines.

       B.It is much heavier than a leather purse.

       C.It can download songs from the Internet.

       D.It is made of clothes conducting electricity.

73. According to the passage, the new wearable computers         .

       A.require users to operate on the stomach

       B.pick up the signals through wires and chips

       C.are being put to use in some different areas now

       D.are smarter but more expensive than the old ones

74. What does the underlined sentence in the last paragraph mean?

       A.The new wearable computers have become fashionable.

       B.People would like to learn more about the new computers.

       C.The idea of the purse-like computers comes from science fiction.

       D.New wearable computers promise to sell well in the future.

75. The purpose of the passage is         .

       A.to introduce a new kind of computer    

B.to explain the functions of computers

       C.to compare different types of computers

D.to show how high technology affects our life

查看习题详情和答案>>

完形填空

  Last July, my 12-year-old car died on California's Santa Ana Freeway. It was an hour 1 sunset, and I was 25 miles from home. I couldn't 2 anyone to pick me up, so I decided to take a bus. Not 3 the way, I thought I'd just head east.

  A bus 4 , and I asked the divrer how far she was going. “Four 5 lights,”she said. There was another bus I could take from there. This clearly was going to be a long 6 .

  She dropped me off at the end of her way and told me which bus to 7 . After waiting 30 minutes, I began to think about a very expensive taxi ride home. Then a 8 pulled up. There was no lighted number above its windshield (挡风玻璃). It was out of service. 9 the door, opened, and I was surprised to find that it was 10 driver.

  “I just can't 11 you here,”she said.“This isn't the nicest place. I'll give you a 12 home.”

  “You'll drive me home in the bus?”I asked, puzzled.

  “No, I'll 13 you in my car,”she said.

  “It's a long way,”I warned.

  “ 14 ”she said. “I have nothing else to do.”

  As we drove from the station in her car, she began telling me a story. A few days 15 , her brother had run out of 16 . A good Samaritan (行善者) picked him up, took him to a 17 and then back to his car. “I'm just passing the 18 on,”she said.

  When I offered her money as a thank-you, she 19 hear of it.“That wouldn't make it a favor,”she said.“Just do something nice for 20 . Pass it on.”

1.

[  ]

A.after
B.before
C.at
D.when

2.

[  ]

A.call
B.hope
C.see
D.get

3.

[  ]

A.knowing
B.finding
C.remembering
D.recognizing

4.

[  ]

A.started out
B.turned over
C.pulled up
D.came out

5.

[  ]

A.other
B.further
C.more
D.distant

6.

[  ]

A.waiting
B.time
C.sitting
D.night

7.

[  ]

A.look for
B.wait on
C.turn to
D.stick to

8.

[  ]

A.taxi
B.bus
C.car
D.motor

9.

[  ]

A.But
B.And
C.So
D.Although

10.

[  ]

A.a woman
B.another
C.the other
D.the same

11.

[  ]

A.help
B.leave
C.keep
D.allow

12.

[  ]

A.drive
B.walk
C.ride
D.lift

13.

[  ]

A.put
B.get
C.take
D.carry

14.

[  ]

A.Come on
B.Take it easy
C.All right
D.So it is

15.

[  ]

A.ago
B.after
C.earlier
D.later

16.

[  ]

A.breath
B.gas
C.money
D.sight

17.

[  ]

A.bus stop
B.hospital
C.bank
D.service station

18.

[  ]

A.help
B.favor
C.respect
D.chain

19.

[  ]

A.didn't
B.couldn't
C.wouldn't
D.shouldn't

20.

[  ]

A.you
B.me
C.him
D.somebody
查看习题详情和答案>>

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网