Speed reading originated at the beginning of this century, when the publication explosi
on swamped readers with more than they could possibly handle at normal reading rates.Most early courses, however, were based on information from a rather unexpected source----the Royal Air Force.
During the First World War air force tacticians had found that, when flying, a number of pilots were unable to distinguish planes seen at a distance.In the life-and-death situation of air combat, this was obviously a serious disadvantage, and the tacticians set about finding a remedy.They developed a machine called a tachistoscope (视觉记忆测试镜),which flashes images for varying short spaces of time on a large screen.They started by flashing fairly large pictures of friendly and enemy aircraft at very slow exposures and then gradually shortened the exposure, while decreasing the size and changing the angle of the image seen.To their surprise, they found that, with training, the average person was able to distinguish almost specklike (斑点似的) representations of different planes when the images had been flashed on the screen for only one five-hundredth of a second.
Reasoning that, if the eyes could see at this incredible speed, reading speeds could obviously be dramatically improved, they decided to transfer this information to reading.Using exactly the same device, they first flashed one word in large type for as long as five seconds on a screen, gradually reducing the size of the word and shortening the length of each flash.Eventually they were flashing four words simultaneously on a screen for one five-hundredth of a second, and the subjects were still able to read them.
As a consequence of these findings, most speed reading courses have been based on this flash-card or tachistoscopic training (also known as still-screen training).
1.In the first paragraph, the writer implies but not directly states that ().
A.a bomb exploded in the publishing house
B.readers were completely at a loss by the publication explosion
C.it might be beyond the ability of readers to read at normal speed as before with so many printed materials came out
D.people could not handle reading at the beginning of this century
2.In line 1, Para.2, the word “tactician” is used to indicate one who is skilled in ().
A.military strategy
B.speed reading
C.driving
D.making machines
3.The reason for developing the tachistoscope is ().
A.to train air force tacticians
B.not mentioned in the text
C.that many air force pilots failed to identify distant planes
D.the fact that many pilots had poor eyesight
4.Which of the following is NOT true according to the passage?
A.The tachistoscope is the equipment with which pilots were trained to distinguish aircrafts rapidly.
B.The tachistoscope was invented by a number of pilots.
C.The tachistoscope could be used to train speed reading.
D.The tachistoscope can flash pictures on a screen.
5.What is the author trying to tell us in this text?
A.How the tachistoscope was invented.
B.The development of speed reading.
C.The training of air force tacticians.
D.A story about the First World War.