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高二英语第十四单元Satellites（卫星）

[06-21 12:27:10] 来源：http://www.77xue.com 高二英语教案 阅读：8491次

概要：Once you step into our village , you’ll see how greatly it has changed .Once seen , the film will never be forgotten .5. 介词 + 关系代词型定语从句There is a rocket motor on the satellite by which the direction of the satellite can be changed if necessary . 卫星上有一个火箭马达，必要时可以用它来改变卫星的方向。〖明晰〗定语从句的先行词是 a rocket motor , by which 引导一个定语从句。定语从句中介词的选择受上下文的制约，或者与前面的先行词有搭配关系，或者与后面的动词有搭配关系。这里的 by 表“通过、用”。又如：There are many research stations on the earth in which outer s

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Once you step into our village , you’ll see how greatly it has changed .
Once seen , the film will never be forgotten .
5. 介词 + 关系代词型定语从句
There is a rocket motor on the satellite by which the direction of the satellite can be changed if necessary . 卫星上有一个火箭马达，必要时可以用它来改变卫星的方向。
〖明晰〗定语从句的先行词是 a rocket motor , by which 引导一个定语从句。定语从句中介词的选择受上下文的制约，或者与前面的先行词有搭配关系，或者与后面的动词有搭配关系。这里的 by 表“通过、用”。又如：
There are many research stations on the earth in which outer space is studied . (in 与先行词 research stations 的搭配)
Who is the comrade with whom you just shook hands ?（with 与动词词组shake hands 的搭配）
另外，在定语从句中还有一个省略式的状语的 if necessary ，if 后省略了 it is 。又如：Put in an article where necessary . 在有必要的地方填上一个冠词。
【妙文赏析】
How easy it all was for police and emergency (紧急) service . A siren (警报器) , a flashing light and like magic everyone was out of the way .
Going home from work one night he passed a garage . There in front of him was the answer to his problem . An old ambulance (救护车)was for sale .
The red cross had been removed . But not the flashing light or the siren . He bought it and opened up for himself a dream-world of driving .
It began early in the morning , all his things in the back of the ambulance and the highway in Germany looking reasonably clear . Soon , as always , a long line of traffic was ahead . He turned on the flashing light and set off the siren . Cars quickly slowed and pulled off the fast lane (车道). Other cars stopped and drivers waved him ahead to an open road all his own . In record time he crossed the border into Austria . But then the Yugoslav made his big mistake . Until then he had only stopped for oil . Now he was driving past a real accident — lights flashing too late to realize that it was not another traffic jam (阻塞) as he had expected . Police on the scene had never seen an ambulance do that before . They stopped him . And after hearing the story of his ride across two countries they fined him $18.50 .
1. What was the Yugoslav’s problem ?
A. He met other foreign drivers. B. He couldn’t find an ambulance.
C. He admired police and emergency service. D. He got caught in terrible traffic jam.

高二英语第十四单元Satellites（卫星）由www.77xue.com收集及整理,转载请说明出处www.77xue.com
www.77xue.com 2. He decided to buy the ambulance because ________.
A. he knew other traffic always moved over for it
　B. he had always wanted one
C. he hoped to resell it and make money
D. he liked the siren and the flashing light
3. Other cars on the highway slowed down or pulled off the fast lane ________.
A. when they waved to them
B. when they heard the siren or saw the flashing light
C. when the police told them to let the ambulance pass

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