Listening
Situation 1 Introducing the Basic Structure of an Automobile
Task 1
Listen to the following speech and tick the statements the speaker mentioned.
□ 1.The vehicles may have different fundamental structures in accordance with their models and manufacturers.
□ 2.An automobile is usually made of the engine,the chassis and the electrical system.
□ 3.The engine provides the power that drives the car by turning the mechanic energy into the heat energy.
□ 4.The steering system and the transmission system are part of the chassis.
□ 5.The car body is the structure to protect the driver,the passengers and the cargos.
□ 6.The electrical system only provides electricity for the lights.
Task 2
Listen to the speech again and complete the sentences.
Thousands of individual parts of the modern automobile are arranged into several semi-independent systems,each with a different function.Regardless of the different 1 and the manufacturers,these parts can be grouped into four major categories:engine,body,chassis,and electrical system.
The engine is the heart of the automobile.There are two types of engine: 2 and diesel.The fuel is burned inside the engine and 3 heat,supplying power to 4 a shaft connected to the transmission.
An automobile body is a 5 metal shell with windows,doors,a hood,and a trunk deck built into it.It not only provides a 6 covering for the engine,passengers,and cargo,but also can keep passengers safe and 7.
The chassis includes the transmission, 8,steering,and brake systems.
The electrical system supplies electricity for the 9,horn,lights,heater,and starter.The electricity level is10 by a charging circuit.
Situation 2 Introducing the Automobile Engine
Task 3
Listen to the following conversation and complete the multiple choices below.
1.Which part is the heart of a vehicle?
A.The engine.
C.The car body.
B.The chassis.
D.The electrical system.
2.Why is the engine regarded as the most important part of a vehicle?
A.Because the engine has many working parts.
B.Because the engine can easily have trouble.
C.Because the engine can provide power to move the car.
D.Because the engine is one fundamental structure of the car.
3.The most popular of configurations of the engine blocks include________.
A.in-line engines
C.flat engines
B.the"V"arrangement
D.all of the above
4.The following parts belong to the engine EXCEPT________.
A.the cooling system
C.the exhaust system
B.the starter system
D.the navigation system
5.What time will Lily and Peter meet each other this Friday afternoon?
A.At 4:40.
C.At 4:02.
B.At 4:20.
D.At 4:10.
Task 4
Listen to the conversation again and fill in the blanks.
Peter:Hi,Lily.How are you doing recently?
Lily:Not very well.I'm busy preparing for the coming exam about the1,but I find it too difficult for me.How about you?
Peter:Everything goes well.Oh,I'm familiar with the engine.You bet I can teach you well.
Lily:Great!Then let's start the 2 with the function of the engine.
Peter:Okay.The engine is the heart of a car,because it converts chemical energy in fuel into useful 3 motion which makes the wheel turn.
Lily:How can I identify the types of engines?
Peter:As for the engine types,it can be identified by the number of 4 and the way the cylinders are laid out.Motor vehicles will have from 3 to 12 cylinders which are arranged in the engine 5 in several configurations.The most popular of them are 6 engines,the"V"arrangement and flat engines.
Lily:I see.Then what does the engine include to function well?
Peter:Let's take the gasoline engine for an example.To 7 well,the gasoline engine has piston crank mechanism,the valve mechanism,fuel system,ignition system,starting system,cooling system and lubricating system.
Lily:It is very 8.
Peter:Exactly.The majority of engines in motor vehicles today are four-stroke, 9 internal combustion engines.
Lily:Okay,Let's stop here today,Peter.I need time to understand what you said.Shall we discuss how the four-10 process works at 4:40 this Friday afternoon?
Peter:Out of question.See you then.
Lily:Thank you so much.See you.