The Germans also used radar later in the war when the great air raids(袭击)against their cities began. On both sides the system was almost the same in a number of ways. The heart of the radar warning system was the “operations centre”. This was a huge system of rooms, usually below the ground. Radar showed the position of the enemy bombers while the bombers were still far away. In the centre of the main operations room there was usually a huge map on a large table. The position of the bombers was also shown on this table. Anybody who looked at it could see immediately where the bombers were at that moment. The people in the radar centre also had to decide where the bombers were going, or what the likely targets(目标)were. When this had been calculated the people in those places were warned. As they hurried to air raid shelters below the ground, fighter planes were taking to the air. The fighters were never out of radio contact(联络)with the radar centre.
At night, radar was a pair of eyes that guided the fighters to the bombers that they could not see. A radar controller on the ground told the pilot exactly where to go. Usually the pilot himself did not see the bomber until he was a few seconds away from it. Then he would open fire. None of these things could have happened without radar.
1.Radar was used by the British in 1940 to ________.
A.guide bombers to their targets in the daylight
B.get fighters away from other British fighters they could not see
C.guide fighters to the right place in order to meet the German bombers
D.guide bombers to their targets at night
2.The Germans began to use radar ________.
A.earlier than the British
B.later than the British
C.after the Second World War
D.almost at the same time as the British
3.An air raid shelter is a place where people ________.
A.shoot at bombers
B.hide from bombers
C.keep bombs
D.keep radar
4.Radar helped night fighter pilots to ________.
A.see bombers long before they could to without it
B.get close to the bombers before they could see them
C.open fire on bombers that they could not even see
D.get back to the fighter station after the battle
1.C 参看:The British fighter planes had to
be in exactly the right place at exactly the right time to meet the enemy
bomber.
2.B 由“the Germans also used radar later in the way when the great air raids against their cities began”表明德国晚于英国。 3.B 由“this was a huge system of rooms,usually below the ground”可知,藏在地下的目的是远离敌机。 4.B 第三段表明应用这种设备在夜间所起到的巨大作用,第一句话就是答案。
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科目:高中英语 来源: 题型:054
阅读下面短文, 掌握其大意, 然后从1-25各题所给的四个选项中, 选出一个最佳答案。
It seems that all that's left for cars to do now is to drive themselves. Electronic(电子的)voices tell you 1 your seat belt. Liquid crystal displays(液晶显示器) warn you the 2 are not 3 tight. And special roadmaps show you 4 to go. The newest development is in 5 .
Heavy 6 may be 7 for drivers, but it will 8 be so. A 9 type of Jaguar(美洲虎轿车) 10 a far-infrared(远红外线)camera. Drivers can see 11 of the road clearly 12 a small screen inside the car, and 13 through 14 the thickest fog. 15 type of Jaguar can warn you 16 danger. A computerized map shows the road edges, lanes and things in front of the car, 17the driver won't 18 them.
A third type of Jaguar has a radar(雷达) 19 measures the 20 and speed of the car in front, and 21 a safe distance from it. The car shows when 22 and when to use the brake (刹车), if you are busy 23 the radio or something 24 .People 25 drive cars like these before the end of this century.
(1) A. to hold B. to fast C. to fasten D. to firm
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(2) A. doors B. lights C. windows D. mirrors
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(3) A. opened B.closed C. shut off D. turned off
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(4) A. when B.where C. why D. which
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(5) A. safety B. danger C.need D.the future
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(6) A. rain B. wind C. fog D. snow
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(7) A. a problem B. a question C. a matter D. helpful
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(8) A. no more B. not any C. always D. no longer
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(9) A. testing B. tested C. test D. being tested
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(10) A. is connected with B. is fitted with
C. is fit for D. is burdened with
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(11) A. positions B. pictures C. signs D. conditions
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(12) A. in B. through C. on D. from
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(13) A. push their way B. fight their way
C. make their way D. lose their way
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(14) A. even if B. in C. ever D. even
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(15) A. The second B. The other C. Another D. Either
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(16) A. from B. of C. out of D. no
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(17) A. so B. but C. for D. and
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(18) A. run after B. run down C. run into D. run away
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(19) A. it B. what C. that D. who
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(20) A. time B. distance C. directions D. things
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(21) A. keeps B. stops C. prevents D. leaves
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(22) A. does it speed up B. it sped up
C. to speed up D. it is to be sped up
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(23) A. in B. hearing C. listening D. with
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(24) A. to do B. important C. other D. else
[ ]
(25) A. can be able to B. will be able to
C. can't D. have been able to
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科目:高中英语 来源:学习·探究·诊断 高二英语(下) 题型:054
完形填空
One morning, Mrs Smith was driving home after She had done some shopping. When she passed a rubbish dump, she noticed 1 like a microwave oven not far from the side of the road.
“John is a good 2 ,” she said to herself. “Perhaps he can 3 this. I'll take it home and let him try.”
She picked up the oven and put it in the 4 of her car. Then she drove on 5 . A few kilometers later, she heard the siren of 6 behind her. She looked in the driving mirror and saw a policeman 7 to her to pull over and stop.
Mrs Smith was very 8 . She slowed down at the side of the road. A 9 policeman got out of the police car and walked up to her.
“Can I see your 10 license, please?” he demanded politely. He copied 11 details of her name, address and the number of her car. “ 12 , officer?” Mrs Smith asked.
The policeman did not reply. He looked 13 the car and then at the back.
“Open the boot, please.” he said to Mrs Smith.
Mrs Smith was even more puzzled. She opened the boot 14 pointed to the “microwave oven”. “I 15 this old microwave oven a few minutes ago.” she said, “I am just taking it home to see if my 16 can repair it.”
The policeman stared at her for a moment to see if she was 17 the truth.
“That's not a microwave oven,” he said at last. “That's our radar set. It was the start of a speed trap. Do you mind if we have it 18 ?”
Mrs Smith's face turned 19 . “Oh,” she said, “I'm very sorry. I wouldn't have 20 itif I'd know what it was.”
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科目:高中英语 来源:2010年普通高等学校招生全国统一考试、英语(山东卷) 题型:050
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科目:高中英语 来源:江西省吉安县中、泰和中学、遂川中学2012届高三第二次月考英语试题 题型:050
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科目:高中英语 来源:广东省培正中学2012届高三第一学期期中考考试英语试题 题型:050
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