A new heat­detecting camera can catch a liarat least 75% of the time.according to a small scientific study out today. “If more tests prove its ability.the lie­detector camera might one day be used by airports to catch terroristsbefore they get on an airplane .says researcher James Levine of the Mayo Clinic. But some people doubt whether the camera would ever be reliable enough to be used widely.or whether it could tell someone who plans to break the law. Levine’s group reported their early findings in the journal Nature. Levine and his colleagues asked 20 U.S.Army soldiers to help test the camera.which records the heat patterns when blood rushes to the human face.The researchers told eight of the soldiers in the study to kill a model man.rob it of 20 dollars.then lie about the “crime .The remaining 12 people in the study knew nothing about the “crime . The researchers took all 20 people into a room.They asked them whether they had stolen 20 dollars and then recorded their answers with a standard polygraph testand the new camera. The camera caught six out of eight liars as they were lying-the same lie­detecting ability as the polygraph test.The camera also correctly identified 11 of the 12 people who were telling the truth-a slightly better rate than the polygraph. “The study is so small that it can’t be used as proof of the camera’s ability to catch a thief or a liar .Levine says.Still.he is hopeful that the camera is recording a flushing of the face that may occur when someone lies. The flushing may not be caught by human eyes.but the camera shows a bright red­orange­yellow zone that represents blood rushing to the eyes.“When someone lies.you get a warming around the eyes. he says.Levine speculates that people who lie are afraid of getting caught.That fear leads to an immediate response to run away.Blood goes to the eyes so that the liar can more easily find a way to escape. Levine says it may take years before the camera would be ready for a test at a large U.S.airport. Alan Zelicoff.a senior scientist at the Center for National Security and Arms Control at the Sandia National Laboratories in Albuquerque.says that even if the camera works as well as it did in this study.it would mistakenly consider lots of people as liars.At a busy U.S.airport.those mistakes would mean a thousand passengers a day who would get pulled aside-a move that would probably mean lots of missed flights.he says.1.What does the new liar­detector record when it works?(no more than 10 words) 查看更多

 

题目列表(包括答案和解析)

At dawn on Friday, May 19, 1780, farmers in New England stopped to wonder at the pink color of the sun. By noon the sky had darkened to midnight blackness, causing Americans, still in the painful struggle of a prolonged war of independence, to light candles and tremble at thoughts of the Last Judgment. As the birds quieted and no storm accompanied the darkness, men and women crowded into churches, where one minister commented that “The people were very attentive.” John Greenleaf Whittier later wrote that “Men prayed, and women wept; all ears grew sharp . . .”

A recent study of researchers, led by Richard Guyette from the University of Missouri’s Tree Ring Laboratory, has shown that vast forest fires in the Algonquin Highlands of southern Ontario and elsewhere in Canada brought this event upon New England. The scientists have discovered “fire scars” on the rings for that year, left when the heat of a wildfire has killed a part of a tree’s cambium (形成层). Evidence collected also points to a drought that year. An easterly wind and low barometric pressure (低气压) helped force smoke into the upper atmosphere. “The record fits pretty close,” says Guyette. “We had the right fuel, the drought. The conditions were all there.”

Lacking the ability to communicate quickly over long distances, Americans in 1780 remained in the dark about the event, which had disappeared by the next day. Over the next several months, the papers carried heated debates about what brought the darkness. Some were the voices of angry prediction, such as one Massachusetts farmer who wrote, “Oh! Backsliding New-England, attend now to the things which belong to your peace before they are forever hid from your eyes.” Others gave different answers. One stated that a “flaming star” had passed between the earth and the sun. Ash, argued another commentator. The debate, carried on throughout New England, where there were no scientific journals or academies yet, reflected an unfolding culture of scientific enquiry already sweeping the Western world, a revolution nearly as influential as the war for independence from the English.

New Englanders would not soon forget that dark day; it lived on in folklore, poems, and sermons for generations.

 

1.New Englanders crowded into churches because they were frightened by         .

A. the pink color of the sun

   B. the darkened sky at daytime

   C. the Last Judgment on Friday

   D. the American War of Independence

2.What can we infer about the event in New England on May 19, 1780?

   A. Prayers remained silent and attentive.

   B. Night birds no longer came out to sing.

   C. People’s ears became sharper than usual.

   D. Midday meals were served by candlelight.

3.According to the researchers, the origin of the event was         .

   A. an east wind

   B. a severe drought

C. some burning fuel

D. low barometric pressure

4.What can we know about the debates after the dark day?

A. They focused on causes of the event.

   B. They swept throughout the Western world.

C. They were organized by scientific institutions.

D. They improved Americans’ ability to communicate.

5.What can be the best title for the text?

   A. New England’s dark day.

   B. Voices of angry prediction.

C. There is no smoke without fire.

D. Tree rings and scientific discovery.

 

查看答案和解析>>


PART THREE: READING COMPREHENSION (30分)
Directions: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are 4 choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage.
A
At dawn on Friday, May 19, 1780, farmers in New England stopped to wonder at the pink color of the sun. By noon the sky had darkened to midnight blackness, causing Americans, still in the painful struggle of a prolonged war of independence, to light candles and tremble at thoughts of the Last Judgment. As the birds quieted and no storm accompanied the darkness, men and women crowded into churches, where one minister commented that “The people were very attentive.” John Greenleaf Whittier later wrote that “Men prayed, and women wept; all ears grew sharp . . .”
A recent study of researchers, led by Richard Guyette from the University of Missouri’s Tree Ring Laboratory, has shown that vast forest fires in the Algonquin Highlands of southern Ontario and elsewhere in Canada brought this event upon New England. The scientists have discovered “fire scars” on the rings for that year, left when the heat of a wildfire has killed a part of a tree’s cambium (形成层). Evidence collected also points to a drought that year. An easterly wind and low barometric pressure (低气压) helped force smoke into the upper atmosphere. “The record fits pretty close,” says Guyette. “We had the right fuel, the drought. The conditions were all there.”
Lacking the ability to communicate quickly over long distances, Americans in 1780 remained in the dark about the event, which had disappeared by the next day. Over the next several months, the papers carried heated debates about what brought the darkness. Some were the voices of angry prediction, such as one Massachusetts farmer who wrote, “Oh! Backsliding New-England, attend now to the things which belong to your peace before they are forever hid from your eyes.” Others gave different answers. One stated that a “flaming star” had passed between the earth and the sun. Ash, argued another commentator. The debate, carried on throughout New England, where there were no scientific journals or academies yet, reflected an unfolding culture of scientific enquiry already sweeping the Western world, a revolution nearly as influential as the war for independence from the English.
New Englanders would not soon forget that dark day; it lived on in folklore, poems, and sermons for generations.
56. New Englanders crowded into churches because they were frightened by         .
A. the pink color of the sun      B. the darkened sky at daytime
C. the Last Judgment on Friday    D. the American War of Independence
57. What can we infer about the event in New England on May 19, 1780?
A. Prayers remained silent and attentive.
B. Night birds no longer came out to sing.
C. People’s ears became sharper than usual.
D. Midday meals were served by candlelight.
58. According to the researchers, the origin of the event was         .
A. an east wind                B. a severe drought
C. some burning fuel            D. low barometric pressure
59. What can we know about the debates after the dark day?
A. They focused on causes of the event.
B. They swept throughout the Western world.
C. They were organized by scientific institutions.
D. They improved Americans’ ability to communicate.
60. What can be the best title for the text?
A. New England’s dark day.  B. Voices of angry prediction.
C. There is no smoke without fire.       D. Tree rings and scientific discovery.

查看答案和解析>>

At dawn on Friday, May 19, 1780, farmers in New England stopped to wonder at the pink color of the sun. By noon the sky had darkened to midnight blackness, causing Americans, still in the painful struggle of a prolonged war of independence, to light candles and tremble at thoughts of the Last Judgment. As the birds quieted and no storm accompanied the darkness, men and women crowded into churches, where one minister commented that “The people were very attentive.” John Greenleaf Whittier later wrote that “Men prayed, and women wept; all ears grew sharp . . .”

A recent study of researchers, led by Richard Guyette from the University of Missouri’s Tree Ring Laboratory, has shown that vast forest fires in the Algonquin Highlands of southern Ontario and elsewhere in Canada brought this event upon New England. The scientists have discovered “fire scars” on the rings for that year, left when the heat of a wildfire has killed a part of a tree’s cambium (形成层). Evidence collected also points to a drought that year. An easterly wind and low barometric pressure (低气压) helped force smoke into the upper atmosphere. “The record fits pretty close,” says Guyette. “We had the right fuel, the drought. The conditions were all there.”

Lacking the ability to communicate quickly over long distances, Americans in 1780 remained in the dark about the event, which had disappeared by the next day. Over the next several months, the papers carried heated debates about what brought the darkness. Some were the voices of angry prediction, such as one Massachusetts farmer who wrote, “Oh! Backsliding New-England, attend now to the things which belong to your peace before they are forever hid from your eyes.” Others gave different answers. One stated that a “flaming star” had passed between the earth and the sun. Ash, argued another commentator. The debate, carried on throughout New England, where there were no scientific journals or academies yet, reflected an unfolding culture of scientific enquiry already sweeping the Western world, a revolution nearly as influential as the war for independence from the English.

New Englanders would not soon forget that dark day; it lived on in folklore, poems, and sermons for generations.

New Englanders crowded into churches because they were frightened by         .

A. the pink color of the sun

   B. the darkened sky at daytime

   C. the Last Judgment on Friday

   D. the American War of Independence

What can we infer about the event in New England on May 19, 1780?

   A. Prayers remained silent and attentive.

   B. Night birds no longer came out to sing.

   C. People’s ears became sharper than usual.

   D. Midday meals were served by candlelight.

According to the researchers, the origin of the event was         .

   A. an east wind

   B. a severe drought

C. some burning fuel

D. low barometric pressure

What can we know about the debates after the dark day?

A. They focused on causes of the event.

   B. They swept throughout the Western world.

C. They were organized by scientific institutions.

D. They improved Americans’ ability to communicate.

What can be the best title for the text?

   A. New England’s dark day.

   B. Voices of angry prediction.

C. There is no smoke without fire.

D. Tree rings and scientific discovery.

查看答案和解析>>


C
At dawn on Friday, May 19, 1780, farmers in New England stopped to wonder at the pink color of the sun. By noon the sky had darkened to midnight blackness, causing Americans, still in the painful struggle of a prolonged war of independence, to light candles and tremble at thoughts of the Last Judgment. As the birds quieted and no storm accompanied the darkness, men and women crowded into churches, where one minister commented that “The people were very attentive.” John Greenleaf Whittier later wrote that “Men prayed, and women wept; all ears grew sharp . . .”
A recent study of researchers, led by Richard Guyette from the University of Missouri’s Tree Ring Laboratory, has shown that vast forest fires in the Algonquin Highlands of southern Ontario and elsewhere in Canada brought this event upon New England. The scientists have discovered “fire scars” on the rings for that year, left when the heat of a wildfire has killed a part of a tree’s cambium (形成层). Evidence collected also points to a drought that year. An easterly wind and low barometric pressure (低气压) helped force smoke into the upper atmosphere. “The record fits pretty close,” says Guyette. “We had the right fuel, the drought. The conditions were all there.”
Lacking the ability to communicate quickly over long distances, Americans in 1780 remained in the dark about the event, which had disappeared by the next day. Over the next several months, the papers carried heated debates about what brought the darkness. Some were the voices of angry prediction, such as one Massachusetts farmer who wrote, “Oh! Backsliding New-England, attend now to the things which belong to your peace before they are forever hid from your eyes.” Others gave different answers. One stated that a “flaming star” had passed between the earth and the sun. Ash, argued another commentator. The debate, carried on throughout New England, where there were no scientific journals or academies yet, reflected an unfolding culture of scientific enquiry already sweeping the Western world, a revolution nearly as influential as the war for independence from the English.
New Englanders would not soon forget that dark day; it lived on in folklore, poems, and sermons for generations.
66. New Englanders crowded into churches because they were frightened by_____.
A. the pink color of the sun       B. the darkened sky at daytime
C. the Last Judgment on Friday    D. the American War of Independence
67. What can we infer about the event in New England on May 19, 1780?
A. Prayers remained silent and attentive.    B. Night birds no longer came out to sing.
C. People’s ears became sharper than usual.  D. Midday meals were served by candlelight.
68. According to the researchers, the origin of the event was_________.
A. an east wind    B. a severe drought   C. some burning fuel   D. low barometric pressure
69. What can we know about the debates after the dark day?
A. They focused on causes of the event.
B. They swept throughout the Western world.
C. They were organized by scientific institutions.
D. They improved Americans’ ability to communicate.
70. What can be the best title for the text?
A. New England’s dark day.      B. Voices of angry prediction.
C. There is no smoke without fire.  D. Tree rings and scientific discovery.

查看答案和解析>>

At dawn on Friday, May 19, 1780, farmers in New England stopped to wonder at the pink color of the sun. By noon the sky had darkened to midnight blackness, causing Americans, still in the painful struggle of a prolonged war of independence, to light candles and tremble at thoughts of the Last Judgment. As the birds quieted and no storm accompanied the darkness, men and women crowded into churches, where one minister commented that “The people were very attentive.” John Greenleaf Whittier later wrote that “Men prayed, and women wept; all ears grew sharp . . .”

A recent study of researchers, led by Richard Guyette from the University of Missouri’s Tree Ring Laboratory, has shown that vast forest fires in the Algonquin Highlands of southern Ontario and elsewhere in Canada brought this event upon New England. The scientists have discovered “fire scars” on the rings for that year, left when the heat of a wildfire has killed a part of a tree’s cambium (形成层). Evidence collected also points to a drought that year. An easterly wind and low barometric pressure (低气压) helped force smoke into the upper atmosphere. “The record fits pretty close,” says Guyette. “We had the right fuel, the drought. The conditions were all there.”

Lacking the ability to communicate quickly over long distances, Americans in 1780 remained in the dark about the event, which had disappeared by the next day. Over the next several months, the papers carried heated debates about what brought the darkness. Some were the voices of angry prediction, such as one Massachusetts farmer who wrote, “Oh! Backsliding New-England, attend now to the things which belong to your peace before they are forever hid from your eyes.” Others gave different answers. One stated that a “flaming star” had passed between the earth and the sun. Ash, argued another commentator. The debate, carried on throughout New England, where there were no scientific journals or academies yet, reflected an unfolding culture of scientific enquiry already sweeping the Western world, a revolution nearly as influential as the war for independence from the English.

New Englanders would not soon forget that dark day; it lived on in folklore, poems, and sermons for generations.

66. New Englanders crowded into churches because they were frightened by         .

   A. the pink color of the sun       B. the darkened sky at daytime

   C. the Last Judgment on Friday   D. the American War of Independence

67. What can we infer about the event in New England on May 19, 1780?

   A. Prayers remained silent and attentive.      B. Night birds no longer came out to sing.

   C. People’s ears became sharper than usual.   D. Midday meals were served by candlelight.

68. According to the researchers, the origin of the event was         .

   A. an east wind   B. a severe drought   C. some burning fuel  D. low barometric pressure

69. What can we know about the debates after the dark day?

A. They focused on causes of the event.

   B. They swept throughout the Western world.

C. They were organized by scientific institutions.

D. They improved Americans’ ability to communicate.

70. What can be the best title for the text?

   A. New England’s dark day.

   B. Voices of angry prediction.

C. There is no smoke without fire.

D. Tree rings and scientific discovery.


查看答案和解析>>


同步练习册答案