1995年高考英语及答案

　　C

　　The idea of fighting a noise by making more noise sounds strange , but that's exactly what motor engineers are doing in Germany and some other countries.

　　Carmakers'research and development laboratories have already proved that mixing in more noise with the help of loudspeakers can reduce the unwanted noise.

　　Physicists have known about the technique for a long time. Sound is made up of pressure waves in the air. If two sound waves of the same frequency(频率)mix so that the highest point of one wave happens at the same time with the lowest point of the other wave, the result is no sound. Therefore, by producing a perfect copy of the noise and delaying it by half a wave cycle(周期), we can kill the unwanted noise. Using this technique many carmakers are racing to develop noise-killing systems both inside and outside the cars.

　　Another good thing about the use of noise-killing systems is that it saves the need for a silencer, which not only reduces the weight of a car, but also makes the motor burn less oil and work better.

　　Some engineers believe that the noise-killing system will be used in most cars in 1996. But the carmakers haven't decided if they will put it into production because it would add several hundred dollars to the cost of their cars.

　　67.Which of the following gives a general idea of how the noise-killing system works?

　　A.By producing pressure waves going in the opposite direction.

　　B.By mixing high frequency sound waves with low frequency sound waves.

　　C.By making copies of the unwanted sound waves and letting them out a little later.

　　D.By mixing new sound waves with the noise and sending them out together.

　　68.Besides its main function(功能)the noise-killing system can .

　　A.make a car lighter

　　B.make a car quieter

　　C.reduce the cost of a silencer

　　D.improve the performance of a silencer

　　69.The noise-killing system is not yet popular mainly because .

　　A.it increases the cost of car production

　　B.carmakers are not sure if it is necessary

　　C.it is still being tried out

　　D.people still have their doubts

　　67.C 68.A 69.A

　　D

　　The Great Fire of London started in the very early hours of 2 September 1666. In four days it destroyed more than three-quarters of the old city, where most of the houses were wooden and close together. One hundred thousand people became homeless,but only a few lost their lives.

　　The fire started on Sunday morning in the house of the King's baker(面包师)in Pudding Lane. The baker, with his wife and family,was able to get out through a window in the roof. A strong wind blew the fire from the bakery(面包房)into a small hotel next door. Then it spread quickly into Thames Street. That was the beginning.

　　By eight o'clock three hundred houses were on fire. On Monday nearly a kilometer of the city was burning along the River Thames. Tuesday was the worst day. The fire destroyed many wellk-nown buildings, old St Paul's and the Guildhall among them.

　　Samuel Pepys, the famous writer, wrote about the fire. People threw their things into the river. Many poor people stayed in thier houses until the last moment. Birds fell out of the air because of the heat.

　　The fire stopped only when the King finally ordered people to destroy hundreds of buildings in the path of the fire. With nothing left to burn, the fire became weak and finally died out.

　　After the fire,Christopher Wren,the architect(建筑师), wanted a city with wider streets and fine new houses of stone. In fact, the streets are still narrow; but he did build more than fifty churches, among them new St Paul's.

　　The fire caused great pain and loss, but after it London was a better place: a city for the future and not just of the past.

　　70.The fire began in .

　　A.a hotel B.the palace

　　C.Pudding Lane D.Thames Street

　　71.The underlined word "family" in the second paragraph means .

　　A.home B.children

　　C.wife and husband D.wife and children

　　72.It seems that the writer of the text was most sorry for the fact that .

　　A.some people lost their lives

　　B.the birds in the sky were killed by the fire

　　C.many famous buildings were destroyed

　　D.the King's bakery was burned down

　　73.Why did the writer cite(引用) Samuel Pepys?

　　A.Because Pepys was among those putting out the fire.

　　B.Because Pepys also wrote about the fire.

　　C.To show that poor people suffered most.

　　D.To give the reader a clearer picture of the fire.

　　74.How was the fire put out according to the text?

　　A.The king and his soldiers came to help.

　　B.All the wooden houses in the city were destroyed.

　　C.People managed to get enough water from the river.

　　D.Houses standing in the direction of the fire were pulled down.

　　75.Which of the following were reasons for the rapid spread of the big fire?

　　(a)There was a strong wind.

　　(b)The streets were very narrow.

　　(c)Many houses were made of wood.

　　(d)There was not enough water in the city.

　　(e)People did not discover the fire earlier.

　　A.(a)and(b) B.(a),(b)and(c)

　　C.(a),(b),(c)and(d) D.(a),(b),(c)(d)and(e)

　　70.C 71.B 72.C 73.D 74.D 75.B