3. Passage 7 Greek soldiers sent messages by turning their shields toward the sun. The flashes reflected light could be seen several miles away. The enemy did not know what the flashes meant, but other Greek soldiers could understand the message. Roman soldiers in some places built long rows of signal towers. When they had a message to send, the soldiers shouted it from tower to tower. If there were enough towers and soldiers with loud voices, important news could be sent quickly over distance. In Africa, people learn to send messages by beating on a series of large drums. Each drum was kept within hearing distance of the next one. The drum beats were sent out in a special way that all the drummers understood. Though the messages were simple, they could be sent at great speed for hundreds of miles. In the eighteenth century, a French engineer found a new way to send short messages. In this way, a person held a flag in each hand and the arms were moved to various positions representing different letters of the alphabet. It was like spelling out words with flags and arms. Over a long period of time, people sent messages by all these different ways. However, not until the telephone was invented in America in the nineteenth century could people send speeches sounds over a great distance in just a few seconds. The African way of communication sent messages( ).
A. with arms.
B. over a very short distance
C. by a musical instrument
D. at a rather slow speed
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26.Stephen has committed a serious( ), which makes the whole family upset.
A. sin
B. offence
C. crime
D. guilt
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60.When the match was over, the football fans( )the barriers and rushed onto the football field.
A. put through
B. pull through
C. brought through
D. broke through
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3. Passage 15 There is a commonly held myth that Einstein was an underachiever at school, but it really isn't true. While he may have had difficulties with languages, Einstein excelled in physics, mathematics and music. Einstein held many patents and was a keen inventor. While working at Swiss patent office in Bern he took it upon himself to write his own scientific papers in his spare time, mostly at weekends and in the evenings after work. 1905 was Einstein's miracle year. During this year he wrote three fundamental papers, any of which would have guaranteed him immortality in the world of physics. His first was on a new understanding of the structure of light. Einstein argued that light is composed of small particles of energy, called photons, as well as oscillating waves. The second paper built upon the theory of kinetics. Einstein explained how atoms were responsible for the buffeting of particles of material in suspension, like cigarette smoke suspended in air. This paper presented the first direct evidence for the existence of atoms, vindicating an idea that had been around for over 2000 years. His third paper of 1905 was ―On the Electrodynamics of Moving Bodies‖. Here Einstein derived the theory of ―special relativity‖. In a supplementary paper four months later, he formulated the famous equation, E=mc2, where mass and energy are equivalent, showing that a very small amount of mass converts to a huge amount of energy. This is the driving force behind atomic bombs, and all the stars in the Universe. What effect did Einstein‘s second paper have?
A. It explained how light was composed of.
B. It explained how cigarette smoke suspended in air.
C. It provided direct evidence to oppose the existence of atoms.
D. It proved an idea that remained unclear for over 2000 years.
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5. Passage 15 There is a commonly held myth that Einstein was an underachiever at school, but it really isn't true. While he may have had difficulties with languages, Einstein excelled in physics, mathematics and music. Einstein held many patents and was a keen inventor. While working at Swiss patent office in Bern he took it upon himself to write his own scientific papers in his spare time, mostly at weekends and in the evenings after work. 1905 was Einstein's miracle year. During this year he wrote three fundamental papers, any of which would have guaranteed him immortality in the world of physics. His first was on a new understanding of the structure of light. Einstein argued that light is composed of small particles of energy, called photons, as well as oscillating waves. The second paper built upon the theory of kinetics. Einstein explained how atoms were responsible for the buffeting of particles of material in suspension, like cigarette smoke suspended in air. This paper presented the first direct evidence for the existence of atoms, vindicating an idea that had been around for over 2000 years. His third paper of 1905 was ―On the Electrodynamics of Moving Bodies‖. Here Einstein derived the theory of ―special relativity‖. In a supplementary paper four months later, he formulated the famous equation, E=mc2, where mass and energy are equivalent, showing that a very small amount of mass converts to a huge amount of energy. This is the driving force behind atomic bombs, and all the stars in the Universe. Which of the following words can be used to best describe the author‘s attitude towards Einstein?
A. Skeptical.
B. Critical.
C. Admiring.
D. Exaggerated.
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1. Passage 3 Dieting to lose weight has become very popular in recent years. People have become more health conscious and try to take better care of their bodies by eating more nutritiously and exercising more regularly to lose any unnecessary fat that they may have. Not only are people being more careful about what they eat, they are also concerned with how they eat and how their meals are prepared. People are taking more time for each meal. Many avoid the so called ―plastic‖ fast-food hamburgers and choose to eat a salad or a sandwich of more healthful ingredients(成分) in a quiet restaurant with a more leisurely atmosphere. At home, they also try to take enough time to eat a relaxing dinner without phone or TV interruptions. While dieting may be viewed as beneficial, it has also become a serious problem for Americans, particularly for young women. Dieting for them has actually become a psychological addiction( 依 赖 ). They eat so little that they can lose as much as fifty percent of their total body weight, and although they look like skeletons, they still insist that they are fat. The current waves of exercising, dieting and the problems produced have caused many organizations to begin educating the public. Many schools, hospitals, health organizations, newspapers and magazines, for example, are offering classes, printing booklet articles, etc. to inform the public of the way to exercise and diet, of the dangers of dieting too rapidly, and of the places people can go for medical help if they find themselves on the road to ―diet addiction‖. These days people are dieting more because( ).
A. they have become fatter and fatter
B. they have realized the danger of eating
C. they have become more health conscious
D. they have taken better care of themselves
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1. Passage 15 There is a commonly held myth that Einstein was an underachiever at school, but it really isn't true. While he may have had difficulties with languages, Einstein excelled in physics, mathematics and music. Einstein held many patents and was a keen inventor. While working at Swiss patent office in Bern he took it upon himself to write his own scientific papers in his spare time, mostly at weekends and in the evenings after work. 1905 was Einstein's miracle year. During this year he wrote three fundamental papers, any of which would have guaranteed him immortality in the world of physics. His first was on a new understanding of the structure of light. Einstein argued that light is composed of small particles of energy, called photons, as well as oscillating waves. The second paper built upon the theory of kinetics. Einstein explained how atoms were responsible for the buffeting of particles of material in suspension, like cigarette smoke suspended in air. This paper presented the first direct evidence for the existence of atoms, vindicating an idea that had been around for over 2000 years. His third paper of 1905 was ―On the Electrodynamics of Moving Bodies‖. Here Einstein derived the theory of ―special relativity‖. In a supplementary paper four months later, he formulated the famous equation, E=mc2, where mass and energy are equivalent, showing that a very small amount of mass converts to a huge amount of energy. This is the driving force behind atomic bombs, and all the stars in the Universe. According to the first paragraph, Einstein.
A. was an underachiever at school
B. didn‘t like learning languages
C. was extremely good at physics
D. knew a little about music
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150.( )fire, all exits must be kept clear.
A. In place of
B. Instead of
C. In case of
D. In spite of
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29.To make a living as a door-to-door( )demands courage because the door may shut in your face at any time.
A. attendant
B. dealer
C. carpenter
D. salesman
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196.Nobody noticed the thief slip into the house because the lights happened to .
A. light up
B. give in
C. be turned on
D. go out
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