E1

1. The power train has two maan functions :it conveys powerfrom the engine to the wheels , and it changes the amount of torque    2. The power train consists of an engine , a transmission ,a clutch , a drive shaft and differential
3. The feature of a manual transmission is to deliver engine power to the front wheels and rear wheels 
4. manual transmissions usually have five speeds , which means that the output shaft can rotate faster than the input
5. There are several basic components in the clutch , such as the flywheel , clutch disk , pressure plate , release bearing and linkage.
6 Automatic transmissions are used not only in many rear-wheel-dnve and four-wheel-dnve ve- lcles, but In most front-wheel-dnve ones

1. T     2. T     3. F     4. F     5. T     6. F

E2

1. manual transmission         手动变速器 

2. automatic transmission       自动变速器  

3.planetary gear set           行星齿轮组         

4. Transaxle  assembly        驱动桥总成   

5. differential gear            差速器                     

6. clutch pedal               离合器踏板   

7.gearshift lever              变速杆

8. release bearing            分离轴承    

9. engine braking             发动机制动   

10.torque converter          液力变矩器

E3

1. If you’ve read about manual transmissions you know hat an engine is connected to a transmission by way of a clutch.

2. Cars with an automatic transmission have no clutch that disconnects the transmission from the engine. Instead, they use an amazing device called a torque converter.

3. One important function of the power train is to transmit the power of the engine to the wheels.

4. The type of transmission ( manual or automatic) determines how the slip joint is connected to the drive shaft.

5. The clutch is located between the back of the engine and the front of the transmission

6. The face of the flywheel that touches the clutch disc is made of iron Even if the flywheel were aluminum , the face is iron.

7. When the operator presses the clutch pedal ,the clutch release lever or fork .

8. The clutch release bearing in most cases, is a ball bearing assembly with a machined face on one side.

E4

1.clutch : any of various devices for engaging and disengaging two working engaging and disengaging two working parts of a shaft      

2.shaft : a long, generally cylindrical bar, especially one that rotates and transmits power    

3.transmission : a speed and power changing device
4.gearshift : a mechanism for changing from one gear to another in a  

5.transaxle : an automotive part that combines the transmission and the differential and is used on vehicles with front-wheel drive

6.flywheel : a heavy-rimmed rotating wheel used to minimize variations in angular velocity

E5

1. The power is then carried from the engine through the power train to the car (通过传动系扒发动机传递到车轮) so that the wheels turn and the car moves.

2. ( 如果汽车变速器需要修理和更换)If your car transmission needs repairs or replacement，you’ve come to the right phone.

3. If you wanted a top speed of 80 km/h，then the gear ratio would be similar to third gear ( 速比相近于3 挡) ,in most manual transmission cars .

4. The torque converter does not require any regular maintenance or adjustments ( 不要求定期维护或调整) ，but it may be possible to change the transmission fluid .

5. The drive shaft can be. either open or enclosed , depending on the type of drive used (取决于所使用的驱动类型)