机电专业英语期末复习试题 一．选择题
1. If all points in a linkage move in parallel planes the system undergoes planar motion and the linkage may be described as a ______ .
A. planar motion B. planar linkage C. joints D. slide
2. Though frame material and design should handle damping,
_____ are sometimes built into frame sections to handle specific problems.
A .beams B. holes C. dampers D. screw
3. The maximum allowable deflection of a shaft ______ determined by critical speed, gear, or bearing requirements. A. often B. must C. was D. is usually
4. We will have to _____ to better and better solutions as we generate more information.
A. repeat many times B. iterating C. iterate D. try ways
5. If a product configuration is _______ specified and then examined to determine whether the performance requirements are met. A. finally B. tentatively C. temporary D. have been
6. Manufacturing can be defined as the _____ of raw materials into useful products through the use of the easiest and lest-expensive methods.
A. transformation B. processing C. process D. transforming 7. The planer and knee types of milling machine is _____ because of its flexibility.
A. used most commonly B. most popular C. the most commonly used D. most powerful
8. As a result, the system will vibrate at the frequency of the _____ force regardless of the initial conditions or natural frequency of the system.
A. action B. excitation C. out D. act
9. Before two components are assembled together, the relationship between the dimensions of the mating surfaces_______. A. must be giving out B. should printed clearly C. must be specified D. should be clearly noted
10. The main practical advantage of lower pairs is their better ability to trap lubricant between their ______ surfaces. A. enveloping B. mating C. outer D. outside
11. The word______ itself usually refers to the deterioration of metals and ceramics, while similar phenomena in plastics generally called
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______.
A. recrystallization…. corrosion B. recrystallization…degradation
C. degradation…corrosion D. corrosion… degradation 12. Most frames _______ cast iron, weld steel, composition, or concrete.
A. are made from B. are made up of C. was produced by D. was consist of
13. Rotating shafts particularly those that run at high speeds, must be designed to avoid operation at ______ speeds.
A . low B .overload C. critical D. hollow
14. Although cast iron is a fairly cheap material, each casting requires a ______ 。
A. pattern B. model C. mold D. patent
15. The term ______ is used to describe joints with surface contact, as with a pin surrounded by a hole.
A. high pair B. low pair C. surface pair D. rotary pair 1-5：BCDCB 6-10：ACBCA 11-15 DACAB
二．阅读
1.Lassie was a big dog. She was very clever. She was always helping someone.
Once some bad men took some money from an old man. They tied him up with a rope and left him on the floor. They kept Lassie in another room. Lassie tried to open the door of the room. But she couldn’t. There was a large window in the room, but it was too high for Lassie to reach. She pulled a chair over to window and stood on it. She pushed and pulled and pulled at the window and at last got it open. With a great jump, she got out.
Lassie came back into the house and found the room where the old man was left. She untied the rope round the old man’s arms and legs. Then she helped him out of the house and down the road to the nearest house.
( )1. Lassie was ______.
A. a baby B. a cat C. a dog D. a girl
( )2. Once some bad men tool some money from ______.
A. a young man B. a young woman C. an old woman D. an old man ( )3. Lassie ______ the door of the room.
A. didn’t open B. opened C. shut D. didn’t shut ( )4 .______ untied the old man.
A.A girl B. A cat C. A woman D. Lassie ( )5. ______ caught the bad men.
A. The dog B. Lassie C. The policemen D. The girl
2.Mr. George works at the school lost and found. He works very carefully. Every day, when he get
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s a lost thing, he takes notes about it. There are pens, books, school uniforms, keys, walkmans and many other things in the lost and found. Most of them are the students’. If you lose your things, it’s easy for you to go to the lost and found for help. But you must tell Mr. George what it is and its color and the day when you can’t find it. I think Mr. George is very helpful, and you will be happy when you find the lost there.
( )6 .Who works at the school lost and found?
A. Mr. Brown B. Mr. King C. Mr. George D. Nobody ( )7 .There are ________ things in the lost and found. A. no B. few C. a few D. many
( )8. Most things Mr. George takes care of are the ________. A. boys’ B. girls’ C. students’ D. teachers’
( )9 .If you lose your things, you’d better go to ask ________. A. Ben B. Mr. George C. your teacher D. your parents
( )10.If you lose your things and go to the lost and found for help, you needn’t tell Mr. George ________.
A. What it is B. how much it is C. its color D. the day when you lost it.
3.The students were having their chemistry（化学）
class. Miss Li was telling the children what water was like. After that，she asked her students，\’s water？”No one spoke for a few minutes．Miss Li asked again，“Why don’t you answer my question？Didn’t I tell you what water is like？” Just then a boy put up his hand and said，“Miss Li，
you told us that water has no colour and no smell．But where to find such kind of water？The water in the river behind my house is always black and it has a bad smell．”Most of the children agreed with him． “I’m sorry，children．”said the teacher，“Our water is getting dirtier and dirtier．That’s a problem．
( )11.The students were having their _______ class． A．English B．Chinese C．chemistry D．maths
( )12．Miss Li was telling the children what ______ was like． A．water B．air C．earth D．weather ( )13．A boy said，”The water in the river behind my house is always _______．” A．white B．black C．clean D．clear ( )14．Most of the children _______ the boy．
A．agreed with B．wrote to C．heard from D．sent for
( )15．The water in the river has colour and smell because it is getting _______． A．more and more B．less and less
C．cleaner and cleaner D．dirtier and dirtier
1-5: CDADC 6-10: CDCBB 11-15: CABAD
4.Working drawings are the complete set of standardized drawings specifying the manufacture and assembly of a product based on its design. The complexity of the design determines the number and types of drawings. Working drawings may be on more than one sheet and may contain written i
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(完整版)机电专业英语复习题及答案
