英语综合课后答案
Unit 1
1. What does "the icy defender" refer to?
It refers to the raw, bitter, bleak Russian winter.
2. What did Napoleon expect when he asmbled his army to attack Russia?
He expected the conquest of Russia in five weeks.
3. What did the Russians do in the face of Napoleon's offensive? What strategy did the Russians adopt?
Instead of fighting, they retreated eastward, burning their crops and homes as they went. They let the Russian winter fight the war for them while they bided their time
4. What did Napoleon discover after he occupied Moscow?
Napoleon discovered that the occupation of the city was an empty victory becau the Russians fled their capital leaving him almost nothing at all.
5. What happened to Napoleon's army when it was retreating from Moscow?
熔化是吸热还是放热 They suffered heavy loss as a result of the extreme cold and the Russians' hit-and-run attacks.
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6. What did Napoleon do when Paris was captured?
Napoleon abdicated and went into exile.
7. When did Hitler begin his invasion of the Soviet Union? What tactics did he u? How long did he expect the campaign to last?
Hitler began his invasion of the Soviet Union on June 22, 1941 without a declaration of war. He expected the campaign to last no longer than three months by using the so-called "lightning war" tactics.
8. Was Stalin prepared for Hitler's attack? What did he do in the face of the German invasion?
尖嘴鳄 No, he wasn't. He instructed the Russian people to "scorch the earth" in front of the German invaders.
3代表什么意思9. How did the people of Leningrad respond to the German attack?
The people of Leningrad refud to surrender and put up a heroic, stiff resistance.
10. What slowed down the German advance on Moscow? What made the German offensive come to a halt?
An early, vere, cold winter, to a large extent, slowed down the German advance on Moscow.
11. What was the significance of the battle of Stalingrad?
The loss of the battle for Stalingrad turned the tide against Hitler. The German victories
什么的比赛were over.
12. What conclusion does the author draw from Napoleon's and Hitler's military campaigns?
The author concludes that the elements of nature must be reckoned with in any military campaign.
Unit 2
1. How important was the automobile industry in the twentieth century?玉兰花什么时候开
The automobile industry ranked as among the most lucrative and powerful industries of the twentieth century.
2. What will happen to cars and roads in the twenty-first century?
Cars and roads will be revolutionized in the twenty-first century
3. Why does the author say the key to tomorrow's "smart cars" will be nsors?
Becau it is nsors that will enable vehicles and roads to be able to e, hear, feel, smell, talk, and act.
4. How would nsors help reduce traffic fatalities?
Sensors can n if a driver is drunk and refu to start up the engine.
5. What is the function of the radars hidden in the bumpers?
The radars hidden in the bumpers can scan for nearby cars. If you make a rious driving mistake the computer will sound an immediate warning.
思的近义词6. How will a smart car alert a driver who feels drowsy?
If the driver's eyelids clo for a certain length of time and his or her driving becomes erratic, a computer in the dashboard could alert the driver.
7. What makes it possible for smart cars to determine their approximate location?
GPS makes it possible for smart cars to determine their location on the earth to within about a hundred feet.
8. What are the prospects for applications of GPS?
With the price of microchips dropping so drastically, future applications of GPS are virtually limitless.
9. What is "telematics" expected to achieve in increasing the efficiency and safety of highway transportation?
It is expected to put smart cars on smart highways.
10. What are traffic engineers doing on Interstate 15 clo to San Diego?
They are installing an MIT-designed system which will introduce the "automated driver".
11. What hopes do promoters of the smart highway have for its future?
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They have great hopes for its future. By 2010, telematics may well be incorporated into one of the major highways in the United States. By 2020, telematics could be adopted in thousands of miles of highways in the United States.
12. What are the advantages of smart highways?
