1-2汽车专业英语PPT课件
合集下载
相关主题
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
You Know, The More Powerful You Will Be
结束语
当你尽了自己的最大努力时，失败也是伟大的， 所以不要放弃，坚持就是正确的。
When You Do Your Best, Failure Is Great, So Don'T Give Up, Stick To The End
2. Studying the technical terms and new words
●intake n. 吸收量，纳入量，吸收的人数
（专业）入口，进口，通风口 eg. a large intake of food 吃下大量食物 the yearly intake of students 每年招收的学生பைடு நூலகம்数
2. to study the pistons and connecting rods about the engine
II. Key Points
Technical terms, operating cycle of four-stroke engine
III. Teaching Procedures
●compression n. 压缩 v. 压缩 to force into less space; press together eg. compressed air 压缩空气
● technical terms four-stroke 四冲程 liquid-cooled 水冷 air-cooled 风冷 inlet valve 进气门 exhaust valve 顶置气门
B: OK. A four-stroke engine includes intake, compression, expassion and exhaust strokes. For a gasoline engine, the intake stroke brings the fresh air and fuel. The compression stroke compresses the air-fuel mixture. When mixture is ignited by spark plugs, the expansion takes place. The expanding gases push down on the top of the piston, the power stroke occurs. As the piston comes up again exhaust gases are pushed out of the engine, the exhaust stroke happens.
Chapter Two
1 Engine / how heat becomes driving power
2 Engine / pistons and connecting rods
I. Teaching Objectives
1. to know about how heat becomes driving power
A: Great. The automobile engine is usually a four-stroke engine. Today I have taught you about operating cycle of fourstroke engine in class. Who can talk about the operating cycle of four-stroke?
A: Well done. Please review what we have learnt after class.
学习总结
经常不断地学习,你就什么都知道。你知道得越多,你就越有力量 Study Constantly, And You Will Know Everything. The More
Step three: To study the text
1. Reading the passages.
3. Translating the text.
发动机 汽车现在使用的是汽油或柴油发动机。汽油发动机 是很普及的。它是四行程，火花点燃。或是水冷， 或是风冷。 对内燃机来说，空气和燃料的混合是有一定比例的。 这种燃料混合气必须在一定时间点燃。 汽车发动机是四冲程发动机。也就是说，进气行程， 压缩行程，作工行程和排气行程。进气行程带来了 新鲜的空气和燃料。压缩行程将可燃混合气压缩。 当这种混合气被火花塞点燃，气体开始膨胀。膨胀 的气体推动活塞的顶部向下运动，作工行程就开始 了。当活塞向上运动时，废气被排出发动机，这一 过程被称为排气行程。
4. To study the engine of auto according to the picture
Example Dialogue:
A: What is used in the automobile today? B: The gasoline and diesel engine. The gasoline
Step one: To look at the picture and know about the general idea of engine
Step two: To study the new words and phrases.
1. Teaching students to read new words correctly.
engine is the most popular in the automobile. A: Anyone can introduce the gasoline engine? B: Me. The gasoline engine is a four-stroke,
spark-ignition engine. It can be either liquidcooled or air-cooled.
结束语
当你尽了自己的最大努力时，失败也是伟大的， 所以不要放弃，坚持就是正确的。
When You Do Your Best, Failure Is Great, So Don'T Give Up, Stick To The End
2. Studying the technical terms and new words
●intake n. 吸收量，纳入量，吸收的人数
（专业）入口，进口，通风口 eg. a large intake of food 吃下大量食物 the yearly intake of students 每年招收的学生பைடு நூலகம்数
2. to study the pistons and connecting rods about the engine
II. Key Points
Technical terms, operating cycle of four-stroke engine
III. Teaching Procedures
●compression n. 压缩 v. 压缩 to force into less space; press together eg. compressed air 压缩空气
● technical terms four-stroke 四冲程 liquid-cooled 水冷 air-cooled 风冷 inlet valve 进气门 exhaust valve 顶置气门
B: OK. A four-stroke engine includes intake, compression, expassion and exhaust strokes. For a gasoline engine, the intake stroke brings the fresh air and fuel. The compression stroke compresses the air-fuel mixture. When mixture is ignited by spark plugs, the expansion takes place. The expanding gases push down on the top of the piston, the power stroke occurs. As the piston comes up again exhaust gases are pushed out of the engine, the exhaust stroke happens.
Chapter Two
1 Engine / how heat becomes driving power
2 Engine / pistons and connecting rods
I. Teaching Objectives
1. to know about how heat becomes driving power
A: Great. The automobile engine is usually a four-stroke engine. Today I have taught you about operating cycle of fourstroke engine in class. Who can talk about the operating cycle of four-stroke?
A: Well done. Please review what we have learnt after class.
学习总结
经常不断地学习,你就什么都知道。你知道得越多,你就越有力量 Study Constantly, And You Will Know Everything. The More
Step three: To study the text
1. Reading the passages.
3. Translating the text.
发动机 汽车现在使用的是汽油或柴油发动机。汽油发动机 是很普及的。它是四行程，火花点燃。或是水冷， 或是风冷。 对内燃机来说，空气和燃料的混合是有一定比例的。 这种燃料混合气必须在一定时间点燃。 汽车发动机是四冲程发动机。也就是说，进气行程， 压缩行程，作工行程和排气行程。进气行程带来了 新鲜的空气和燃料。压缩行程将可燃混合气压缩。 当这种混合气被火花塞点燃，气体开始膨胀。膨胀 的气体推动活塞的顶部向下运动，作工行程就开始 了。当活塞向上运动时，废气被排出发动机，这一 过程被称为排气行程。
4. To study the engine of auto according to the picture
Example Dialogue:
A: What is used in the automobile today? B: The gasoline and diesel engine. The gasoline
Step one: To look at the picture and know about the general idea of engine
Step two: To study the new words and phrases.
1. Teaching students to read new words correctly.
engine is the most popular in the automobile. A: Anyone can introduce the gasoline engine? B: Me. The gasoline engine is a four-stroke,
spark-ignition engine. It can be either liquidcooled or air-cooled.