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1、人民邮电出版社 财经编辑部主任刘 琦 Unit 3 Engine Unit 3 EngineFocusFocusSection 1 Warming UpSection 1 Warming UpSection 2 Dialogue: What is a Section 2 Dialogue: What is a HEVHEV engine? engine?Section 3 Passage: Engines Section 3 Passage: Engines Section 4 Translation SkillsSection 4 Translation SkillsSection 5 Wr
2、iting: AgendasSection 5 Writing: AgendasSection 6 Grammar: ParticiplesSection 6 Grammar: ParticiplesPair work. The engine provides power to the car, just like the heart of human. What do you know about engines? Talk about the engines in the pictures with the following words and phrases:Steam engineC
3、ombustion engineElectric motor Pair work Section One Warming UpSection One Warming UpListen and act the following dialogue between Lucas and Jessica.Section Two Real WorldSection Two Real World5Task I. Read the dialogue carefully and then answer the following questions.1. What does HEV mean? 2. What
4、 is special about HEV? 3. Where does the electric motor get the energy it needs? 4. When will the battery deliver energy to the electric motor? 5. Which role will the electric motor play when the HEV brakes or slows down? Find Information6Task II. Read the dialogue carefully and then decide whether
5、the following statements are true ( T ) or false ( F ). ( ) 1. HEV means hybrid electric vehicle.( ) 2. Hybrid electric vehicle has either a conventional combustion engine or an electric motor. ( ) 3. The HEV decides when to use the electric motor. ( ) 4. The electric motor delivers that main energy
6、 for the car.( ) 5. The battery delivers energy to the electric motor when the HEV is accelerating or going uphill. Find Information7Task I. Choose the best answer from the four choices A, B, C and D.( ) 1. _, chinas painting is directly connecting with calligraphy (书法). A. Convention B. Conventiona
7、l C. Convent D. Conventionally( ) 2. I havent decided _ _ to hold the English Evening Party. A. if B. which C. when D. what( ) 3. So why not slow _ _ and enjoy lifes little pleasures? A. down B. on C. by D. from( ) 4. Wine shall be stored _ _ a cool cellar (地下室). A. in B. at C. to D. from( ) 5. Infl
8、ation(通货膨胀)can cause a dangerous _ of price moves. A. accelerate B. fast C. acceleration D. quick Words Building8Task II. Fill in the blanks with the proper form of the word given. 1. Carbon dioxide(二氧化碳) does not burn, nor does it support _. (combust) 2. If you can guarantee punctual(准时的)_ _ , we s
9、hall place order with you. (deliver) 3. While I was cooking supper, the _ _ went off. (electric) 4. His money comes _ _ from salary. (main) 5. The best place for _ _of money is a bank. (store) Words Building9Task III. Match the following English terms with the equivalent Chinese items.A - compressio
10、n ratio 1. ( ) 进气门B - upper dead point 2.( )下止点C - overhead camshaft engine 3.( )化油器D - lower dead point 4.( )上止点E - intake valve 5.( )压缩比F - front-engine 6.( )前置式发动机G - dual overhead camshaft engine 7.( )排气门H - rear-engine 8.( )后置式发动机I - carburetor 9.( )双顶置凸轮轴发动机J - exhaust valve 10.( )顶置凸轮轴发动机 Wor
11、ds Building10Task I. Listen and write down what youve heard. Then read and recite till you can use them fluently.1. Look, this is an _ _ with hybrid system!2. Sorry, I dont know. Can you _ _ me? 3. HEV means hybrid _ vehicle.4. Because the car has a conventional combustion engine and an electric mot
12、or for extra _ _. 5. Aha, so the combustion engine delivers that _ _ energy for the car.6. The ECU decides _ _ to use the electric motor. Cheer up Your Ears117. And _ _ does the electric motor get the energy it needs?8. When the HEV brakes or slows down, the electric motor works as a generator and p
13、roduces electricity which is stored in the _.9. And the battery _ _ energy to the electric motor when the combustion engine needs extra power, right?10. When the HEV is accelerating or going _ _. Cheer up Your Ears12Task II. Listen and fill in the blanks with the missing words and role-play the conv
14、ersation with your partner.Lily: Will you please explain to me how I can 1_ _of my car?Ann: Sure. One important thing to consider is engine care. Always remember that the life and performance of your car engine lies in the 2_ _. Replace it at recommended intervals.Lily: Sometimes I feel the engine h
15、ot, especially in summer. Is there anything wrong?Ann: When the engine overheats, it is probably because the 3_ _ is inefficient. Youd better get it 4_ _ before 5 _.Lily: I understand. Thank you for your advice! Cheer up Your Ears13Task III. Listen to 5 recorded questions and choose the best answer.
16、1. A. Yes, Ive got it. B. Good idea.C. No, Ive got one. D. Yes, you can.2. A. Yes, please. B. No, you wouldnt.C. Id rather you didnt. D. Yes, it is.3. A. Yes, I dont. B. Sorry, it wont happen again.C. No problem. D. No, I do.4. A. Sorry, I have no change. B. Im a stranger here too.C. 30 dollars. D.
17、Its a nice city.5. A. Im not sure. B. I have no idea.C. English book. D. OK, right away. Cheer up Your Ears14Task I. Complete the following dialogues by translating Chinese into English orally.Mr. Brown: I will 1 _ (加点冷却液) to my engine. But I dont know how to do it. Can you tell me?Mechanic: 2 _(没问题
18、)! Look at the radiator. The coolant level should be between the “LOW” and “FULL” lines 3_(在正 常温度下) .Mr. Brown: What should I pay attention to?Mechanic: Do it slowly when add coolant to the reservoir.Mr. Brown: What should I do when the coolant temperature is 4_(过高)?Mechanic: The coolant level shoul
19、d be higher than “FULL” line 5_(在这种情况下) Mr. Brown: Oh, I see. Thank you very much! Table Talk15Task II. Pair-work. Role-play a conversation about robots with your partner.Situation Imagine you are an automotive engineer. Now you are introducing different types of engines to the customers. Table Talk
20、Section Three Brighten Your EyesSection Three Brighten Your Eyes Find InformationTask I. Read the passage carefully and then answer the following questions.1. What are the major parts of an engine? 2. How does an internal combustion engine work? 3. How many types of engines can be classified accordi
21、ng to the arrangement of cylinders? 4. What is the difference between a four-cycle engine and a two-cycle engine? 5. Which two types of fuel are commonly used for an engine? 17Task II. Read the passage carefully and then decide whether the following statements are true ( T ) or false ( F ). ( ) 1. I
22、nternal combustion engines run on a mixture of 14.7 parts of gasoline and one part of air.( ) 2. The V-arrangement is the simplest and most common arrangement of all engines.( ) 3.The V-arrangement of engine is much more rigid and cheaper to manufacture and install. ( ) 4. There are two types of coo
23、ling systems: liquid-cooled and water-cooled.( ) 5. The four strokes are intake, compression, power and exhaust. Find Information18Task I. Translate the following phrases into English.1. 发动机缸体 2. 阀门 3. 汽缸排列 4. 直列式气缸 5. 进气、压缩、做功和排气 6. 水冷和风冷 7. 汽油机 8. 柴油机 Words Building19Task II. Translate the followi
24、ng sentences into Chinese or English. 1. The engine consists of hundreds of parts. 2. Internal combustion engines run on a mixture of air and gasoline. 3. One part of gas that is completely vaporized into 14.7 parts of air can produce tremendous power when ignited inside an engine. 4. There are four
25、 basic cylinder arrangements of the engine: cylinder-in-line; V-arrangement; Flat and radial. 5. A cylinder-in-line arrangement is the simplest and most common arrangement, with all cylinders arranged vertically in line. Words Building206. 但是,发动机变得相当长,占用空间大。 7. 有两种类型的发动机冷却系统:水冷和风冷。 8. 发动机完成一个工作循环,需要
26、四个行程(包括进气、压缩、做功和排气)被称为四冲程发动机。 9. 如果发动机只完成一个工作循环,只需要两个冲程,被称为两冲程发动机。10. 内燃机以汽油为燃料的被称为汽油机。 Words Building21Task III. Choose the best answer from the four choices A, B, C and D. ( ) 1. A week consists _ seven days. A. for B. of C. from D. out( ) 2. Jia Pingwa is _ a famous Chinese writer. A. known as B.
27、 known to C. known for D. known by( ) 3. This table takes _ too much room. A. with B. for C. up D. over( ) 4. The pedals(踏板) of a bicycle are _ to the crank(曲轴). A. attaching B. attachable C. attach D. attached( ) 5. The yellow river is the river in China. A. longer B. longest C. second longest D. l
28、ong Words Building22Task IV. Fill in the blanks with the proper form of the word given. 1. The bottom layer is a of sand and clay(泥土). (mix) 2. Wages(工资) have gone up _ _ over the past years. (tremendous) 3. Whales are _ _ as mammals(哺乳动物). (classify) 4. He knew the room _ _ well. (arrange) 5. The n
29、orthern face of the mountain is almost _ _. (vertically) Words Building23Task I. Listen and write down what youve heard. Then read and recite till you can use them fluently. 1. The engine _ of hundreds of parts. 2. The major parts of engine are engine block, engine heads, _, connecting rods, cranksh
30、aft and valves. 3. Internal combustion engines run on a _ _of air and gasoline. 4. The ideal mixture is 14.7 parts of air to one part of gasoline (by_ _ ). 5. There are four basic _ _ arrangements of the engine: cylinder-in-line; V-arrangement; flat and radial.6. However, the engine becomes quite _
31、_ and takes up large space. Cheer up Your Ears247. There are two types of cooling systems: liquid-cooled and_ _.8. An engine which needs _ _ strokes is called the four-cycle engine.9. If an engine needs only _ _ strokes to complete a cycle, it is called the two-cycle engine.10. The use of gasoline-f
32、ueled internal combustion engine is known as the _ engine. Cheer up Your Ears25Task III. Listen to 5 recorded questions and choose the best answer.1. A. She doesnt like to go to the zoo.B. She likes to go to the zoo on weekdays.C. She doesnt like to go to the zoo on Sundays.D. She likes to go to som
33、e other places on Sundays.2. A. Give a message to Mr. Jones. B. Wait for Mr. Jon s.C. Write a note to Mr. Jones. D. Keep Mr. Jones note.3. A. She was sick. B. She went to London with her mother.C. She went to see her sick mother. D. Her mother went to see her yesterday Cheer up Your Ears264. A. Dece
34、mber. B. January.C. February. D. Both January and February.5. A. In a restaurant. B. At home.C. In a shop. D. On a train. Cheer up Your Ears27Group Work Talk about car engines with your partner as much as you know. Table Talk28Listen to 2 conversations and choose the best answer.Conversation 11. A.
35、The director of the finance department. B. The manager of the customer services. C. The director of the sales department. D. The manager of human resources.2. A. To ask leave for America. B. To buy some products for her. C. To confirm the meeting with her. D. To apply a job in Stanford Group.3. A. P
36、utting off the appointment. B. Changing the meeting place.C. Visiting the bank the next day. D. Calling him back that afternoon. Listening29Conversation 24. A. Some shoes are missing. B. Its delivery is delayed.C. The order is cancelled. D. Some packages are damaged.5. A. Giving an additional discou
37、nt. B. Renewing the contract.C. Sending the goods by air. D. Paying for the delivery. Listening30Task II. Listen to the passage and fill in the blanks with the missing words or phrases.When you are starting a small business, you should write a business plan. Writing a business plan is the most impor
38、tant 1 . This is how people will think about your business. When you 2 support from a bank, the bank will read your plan seriously before it gives you any help. Even if youre starting the business with 3 , you will still need to have a written plan to help 4 your business. The marketing plan is the
39、important part of a business plan. To sell the products or 5 . Listening31Directions: After reading the passage, you are required to complete the outline below briefly. How an Engine Works 1) The four strokes are 1_. 2) The piston travels 2_ _ on the intake stroke, 3_ _ on the compression stroke, do
40、wn on the power stroke and up on the exhaust stroke. 3) As the piston starts down on the intake stroke, the intake 4_ _ opens and the fuel-air mixture is drawn into the cylinder4) When the piston reaches the bottom of the intake stroke, the intake valve closes, trapping the 5_ mixture in the cylinde
41、r.5) The amount that the mixture is compressed is determined by the compression 6_ _ of the engine. Extensive Reading 326) This means that when the piston reaches the top of the cylinder, the air-fuel mixture is squeezed to about one 7_ _ of its original volume. 7) Each piston fires at a 8_ time, de
42、termined by the engine firing order.8) By the time the crankshaft completes 9_ _ revolutions, each cylinder in the engine will have gone through one power stroke.9) With the piston at the 9_ _ of the cylinder, the exhaust valve opens to allow the burned exhaust gas to be expelled to the exhaust syst
43、em.10) Since the cylinder contains so much pressure, when the valve 10_ _, the gas is expelled with a violent force. Extensive Reading Section Five Section Five GrammarGrammarI. Change the following verbs into Present Participles.1. go e 3. run 4. leave 5.regret 6. live II. Change the following verb
44、s into Past Participles. 1. drive 2.break 3. hurt 4. weigh 5.regret 6. live Exercises34III. Fill in the blanks with proper words according to the Chinese meaning.1. 一首令人愉快的歌曲 a (please) song2. 一位退休工人 a (retire) worker 3. 所给问题的答案 the answers to the questions (give)4. 没趣的东西 nothing (interest)5. 第一本写给孩
45、子的书 the first book (write) for children6. 东升的旭日 the (rise) sun7. 广泛使用的语言 the commonly (speak) language8. 令人困惑的观点 a (confuse)argument9. 疲劳的一天 an (exhaust) day10. 满意的微笑 a (satisfy) smile Exercises35V. Choose the best answer to complete each of the following sentences.1. _ with the best students, I sti
46、ll have a long way to go.A. Having compared B. To compare C. Compared D. Compare2. The music of the film _ by him sounds so _ .A. playing, exciting B. played, excited C. playing, excited D. played, exciting3. _ against the coming hurricane, they didnt dare leave home.A. Warned B. Having warned C. To warn D. Warn4. In _ countries, you cant al
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