吉林城市职业技术学院2014-2015学年度第一学期期末试卷
A. Single overhead cam B. Pushrod 专业 姓名 题 答班级 要 不日期 内 线封密英语试题
注 意 事 项
1.首先按要求在试卷的密封处填写您的专业、姓名、班级和考试日期。 2.请仔细阅读试卷，按要求在规定的位置答题。
3.不要在试卷上乱写乱画，不要在标封区写无关的内容。
4.试卷分为A卷和B卷两部分。A卷满分50分，时间45分钟; B卷 满分50分，时间45分钟，总分共计100分，时间共计90分钟。
卷面 A卷 B卷 总分 评 分 人 分 数 【A卷试题】
得 分 评分人 一、A卷题型一 A卷为闭卷
Ⅰ.Structure
Directions: This part is to test your ability to construct grammatically correct sentences. It consists of 2 Sections. Section A
Directions : In this section, there are 10 incomplete sentences. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked A, B, C and D. Then you should mark the corresponding letter on the Answer Sheet with a single line through the center.
1. Which component is used to seal the pressure of compression and power inside the cylinder?
A. Piston land B. Piston compression ring C.Piston oil control ring D. Piston skirt 2. Which of these is not a type of camshaft?
英语试题第1页 （共8页）
C. Platinum overhead cam D. Alternator
3. What keeps the cams rotating in single and double overhead cam engines? A. Crankshaft B. Timing belt C. Tiimng chain D. Timing crankshaft 4. How many cams would a double overhead V engine have? A. 2 B. 4 C. 3 D. 6 5. How do pushrod engines differ from overhead engines? A. Pushrod valves are located in the head B. The valves are spring loaded
C. The camshaft is located inside the engine block D. The camshaft are located in the head 6. Which car company uses VTEC engines?
A. Honda B. Ford C. Toyota D. Bens 7. What does an advanced valve timing do? . A. Keeps valves open longer B. Opens and closes valves later C. Opens the valves sooner D. Keeps valves close longer
8. Why is the camshaft important to engine performance?
A. It regualtes the amount of fuel and air that enters B. It monitors the piston.
C. It controls the action of the engine valve D. It monitors the amount of air that enters the engine.
9. What part of the cylinder makes cams press against to open valve? A. Rocker arms B. Springs
C. Valves D. Crankshaft and camshaft 10. What’s the most persistent flaw in camshaft design?
A. Corrosion B. Valve clogging C. Imperfect timing D. Imperfect Valve clogging 得 分 评分人
英语试题第2页 （共8页）
the engine.
Section B
Directions: There are 10 incomplete statements here. You should fill in each blank with C: torque converter D: throttle body E; steam engine F: intake stroke the proper form of the word or words in the corresponding space on the Answer Sheet. Happy New Year Children’s Day Good Bye Merry Christmas How do you do or Nice to meet you Get well soon Good night Give me five Good luck Good morning
11. When we meet our friends or classmates in the Spring Festival, we always greet by saying _________________ in china.
12. When people meet someone formally for the first time, they often shake their hands and say_________________ each other.
13. All children’s favorite festival (节日) is _________________.
14. When people leave their house, they often say _________________ to their family. 15. If your friend is ill, when you visit him in a hospital, you may say _________________ to greet him.
16. When you have an important examination(考试)，your good friends and your parents will say _________________ to greet you.
17. As you known, on Christmas Day, people often say _________________.
18. When your mother wants to go to sleep at night, you may say _________________ to bless her.
19. When young people meet informally, they sometimes say ‘_________________’ and slap their hands together.
20. When people meet in the morning, they often greet by saying _________________. 得 分 评分人 Section c
Directions: The following is part of Information for Signs. After reading it, you are required to find the items equivalent to (与......等同) those given in Chinese in the table below. Then you should put the corresponding letters in the brackets on the Answer Sheet, numbered 16 through 25.
A: vibration damper B: intake manifold
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G:engine block H: compression ring I: main bearing journal J: valve train K: piston ring L: counter-balanced weight M: ignition system N: lubrication system O: compression stroke P: firing order 21.( )点火系 22. ( )点火顺序 23.( )压缩冲程 24. ( )进气歧管 25.( )润滑系 26. ( )主轴颈 27.( )平衡重 28. ( )液力变矩器 29.( )压缩环 30.( )振动减振器 Answer Sheet(答题卡): Ⅰ.Structure Section A 1 2 3 4 5 6 7 8 9 10 Section B 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Section c 21 22 23 24 25 26 27 28 29 30 英语试题第4页 （共8页）
密封线内不要答题 专业 姓名 题 答班级 要 不日期 内 线封密【B卷试题】
得 分 评分人 一、B卷题型一 B卷为开卷
Ⅱ. Reading Comprehension
A
As we know, the internal combustion engine (ICE) seems to be the one most commonly used in the automotive field. According to the fuel energy used, internal combustion erngines
are further divided into gasoline engines, kerosene engines, diesel engines, etc.
Power stroke As the piston reaches the top dead center(TDC) on the compression
stroke, an electric spark is produced at the spark plug. The ignition system delivers a high tension current to the spark plug to produce the spark, and ignites the air-fuel mixture. Each spark plug fires at a different time, which is determined by the engine firing order. The power process pushes the piston down the cylinder with great force turning the crankshaft to provide the power to propel the vehicle.
Exhaust stroke As the piston reaches the bottom dead center (BDC) again, the exhaust valve opens to allow the exhaust gas or burned gas to be expelled through the exhaust-valve
port. Since the cylinder contains so much pressure, when the valve opens, the gas is expelled with a violent force. That is why a vehicle without a muffler sounds so loud. The piston travels
up to the top of the cylinder pushing all the exhaust out before closing the exhaust valve in preparation for starting the four-stroke process over again.
1. What is produced at the spark plug as the piston reaches the top dead center(TDC) on the compression stroke?
A. an electric spark B. high voltage C. electric energy D. mechanical power 2. What does determine each spark plug fires at a different time?
A. air-fuel mixture B. the engine firing order C. Compression stroke D. the spark plug
3. As the piston reaches the bottom dead center (BDC) again, the exhaust valve opens to allow____________ to be expelled through the exhaust-valve port
A. the trapped air-fuel mixture B. air-fuel mixture C. the exhaust gas or burned gas D. a high tension curren
英语试题第5页 （共8页）
4. Which part the piston travels up to the cylinder pushing all the exhaust out before closing the exhaust valve in preparation for starting the four-stroke process over again? A. the center B. the bottom of C. exhaust valve D. the top of
5. According to the fuel energy used, internal combustion erngines are further divided into____________, etc.
A. gasoline engines, kerosene engines, diesel engines B. steam engines, diesel engines C. kerosene engines, diesel engines D. gasoline engines, steam engines
B
Most automotive engines operate on the four strokes to convert gasoline into motion. The power production cycle consists of four strokes of the piston reciprocationg motion. The four strokes are: intake stroke, compression stroke, power stroke, and exhaust stroke.
Intake stroke On the intake stroke, when the piston moves downward to the bottom dead center(BDC), a vacuum is created in the cylinder. Meanwhile, the intake valve opens, and the air-fuel mixture is drawn into the cylinder through the valve port. Sometimes, the intake stroke can also be called “induction stroke”.
Compression stroke A after the piston reaches the bottom dead center (BDC) , it begins to move upward. As this happens, the intake valve closes. The exhaust valve is also closed, so that the cylinder is sealed. As the piston moves upward, it compresses the trapped air-fuel mixture. The amount that the mixture is compressed is determined by the compression ratio of the engine. The compression ratio on the average engine is in the range of 8:1 to 10:1. It means that when the piston reaches the top of the cylinder, air-fuel mixture is squeezed to about one tenth of its original volume.
6. Almost all automotive engines use four-stroke combustion cycle to convert________ into ____________.
A.gasoline, motion B. motion, gasoline C.mechanical energy, fuel energy D.fuel energy, electric power 7. What is drawn into the cylinder through the valve port when the intake valve opens? A. gasoline and water B.air-fuel mixture C. gasoline and oil D.air 8.Which strorke is drawn the air-fuel mixture into the cylinder?
A. Exhaust stroke B. Power stroke C. Intake stroke D. Compression stroke 9. What is determined by the amount the mixture is compressed?
A. position of piston in the cylinder B. intake valve open C. BDC D. the compression ratio
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10. The compression ratio on the average engine is in the range of ____________. A. 8:1 to 10:1. B. 9:1 to 10:1 C. 8:1 to 11:1 D. 11:1 to 10:1
C
It was a beautiful spring morning. There were no clouds in the sky, and the sun is warm but not hot. Mr. Black saw an old man at the bus stop with a big, strong, black umbrella in his hand. Mr. Black said to him , “Do you think we are going to have rain today?” “No,” said the old man, “I don’t think so.” “Then are you carrying the umbrella because the sun is too hot?” 17. As the piston reaches the bottom dead center (BDC) again, the exhaust valve opens to allow the exhaust gas or burned gas to be expelled through the exhaust-valve port. 18. According to the fuel energy used, internal combustion erngines are further divided into gasoline engines, kerosene engines, diesel engines, etc 19. Most automotive engines operate on the four strokes to convert gasoline into motion. 20. The amount that the mixture is compressed is determined by the compression ratio of the engine. The compression ratio on the average engine is in the range of 8:1 to 10:1. 密 “No, the sun is not very hot in spring.” Mr. Black looked at the big umbrella again, and then the man said “I am an old man, and my legs are not very strong. I must have a walking-stick. But people will say, Look! That man is so old!‟ I don‟t like that, so I carry an umbrella every day.”
11. This story happened .
A. on a spring morning B. on a cold day C. on a summer evening D. on a bus 12. What was the weather like that day?
A. It was raining. B. The sun was too hot. C. It was sunny and the sun was warm but not too hot. D. It was cloudy. 13. The old man had in his hand.
A. a book B. a walking-stick C. nothing D. an umbrella 14.The old man carried an umbrella because
A. it was going to rain B. he must have it as a walking-stick C. the sun was too hot D. he thought it was going to rain 15. From the passage we know that .
A. the weather was bad that day B. the old man was stupid
C. the umbrella was not strong D. the old man didn’t want other people to say he was old
得 分 评分人 Ⅲ. Translation-English to Chinese
16. On the intake stroke, when the piston moves downward to the bottom dead center(BDC), a vacuum is created in the cylinder
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Ⅱ. Reading Comprehension 题号 01 02 03 04 05 06 07 08 09 10 答案 题号 11 12 13 14 15 答案 Ⅲ. Translation-English to Chinese 16. 17. 18. 19. 20. 英语试题第8页 （共8页）
封线内不要答题
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