【填空题】
37.HXD3电力机车主牵引回路正常时,由于只有___点接地,接地保护电路中流过的电流为零,接地信号检测传感器无信号输出。
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【填空题】
38.HXD3电力机车机车粘着控制:包括防空转.防滑行控制.轴重转移___控制。
【填空题】
39.HXD3电力机车司机电钥匙开关SA49(SA50)有两个位置:“合”、“分”,当置“合”位置时,该机车操纵室即被设定为___。
【填空题】
40.HXD3电力机车紧急制动按钮SA103(SA104)为___按钮。
【填空题】
41.CCBⅡ制动机送入TCMS的801动力切除信号:即制动机要求TCMS控制牵引变流器___功率输出。
【填空题】
42.HXD3电力机车主变流器低压试验前,应将主变流器试验开关SA75置___位。
【单选题】
HXD1电力机车每节车有___个相互独立的主传动变流系统和辅助变流系统。
A. 1
B. 2
C. 3
【单选题】
HXD1电力机车主变流器从主变压器次边取电,通过___个四象限斩波器(4QC)向两个独立的中间电压直流环节供电。
A. 2
B. 3
C. 4
【单选题】
HXD1电力机车每节车辅助变流系统由___个相同PWM逆变器组成,为机车的辅助设备供电。
A. 1
B. 2
C. 4
【单选题】
HXD1电力机车是一种___轴双节重联重载交流传动电力机车。
A. 4
B. 6
C. 8
【单选题】
HXD1电力机车转向架,采用___,构架强度高,结构合理,适合于重载牵引。
A. 侧向牵引梁
B. 低位牵引杆
C. 轴箱拉杆
【单选题】
HXD1电力机车基础制动采用___制动。
A. 轮盘
B. 闸瓦
C. 电磁
【单选题】
HXD1电力机车主变流器采用___冷IGBT模块。
A. 风
B. 水
C. 油
【单选题】
HXD1电力机车牵引电机为滚动轴承___悬挂。
A. 抱轴式
B. 架悬式
C. 体悬式
【单选题】
HXD1电力机车辅助变压器柜经过辅助变压器进行电压调整后,为机车辅助系统所有负载提供___电源。
A. 单相
B. 三相
C. 直流
【单选题】
HXD1电力机车牵引通风机由___上的百页窗吸风后,经过独立的风道,然后将冷却风吹向牵引电机,带走牵引电机工作时产生的热量。
A. 侧墙
B. 车顶
C. 走廊
【单选题】
HXD1电力机车通过冷却塔通风机从车顶吸风,通过封闭的油回路冷却___的油温。
A. 主变压器
B. 牵引电机
C. 辅助变压器
【单选题】
HXD1电力机车蓄电池充电机将机车辅助系统三相交流___电源变为直流110电源,为机车提供110V电源,并为蓄电池组充电。
A. 220
B. 396
C. 440
【单选题】
HXD1电力机车蓄电池充电机主要有___个功能。
A. 一
B. 两
C. 三
【单选题】
HXD1电力机车蓄电池充电机将直流110Ⅴ电源变为直流___电源,为应急灯、仪表等设备提供电源。
A. 12
B. 24
C. 48
【单选题】
HXD1电力机车___高压电缆上装有原边电流互感器,主要用来提供原边电流信号,同时为原边保护回路提供信号。
A. 主断路器旁
B. 机械间内
C. 主变压器上
【单选题】
HXD1电力机车当受电弓到___前的高压设备故障时,可以通过高压隔离开关进行相关的隔离操作。
A. 主断路器
B. 避雷器
C. 隔离开关
【单选题】
HXD1电力机车自动信号感应接收线圈安装在车端排障器的后方距轨面高度___mm。
A. 100
B. 150
C. 300
【单选题】
HXD1电力机车防滑速度传感器全车共有___8个。
A. 2
B. 4
C. 8
【单选题】
HXD1电力机车防滑速度传感器给___系统提供机车速度信号。
A. 空电联合制动
B. 监控系统
C. 信号安全
【单选题】
HXD1电力机车光电速度传感器安装在___轴端,对称布置,附相应的数模转换盒
A. 1、3、7、8
B. 2、3、6、8
C. 2、3、4、6
【单选题】
HXD1电力机车水泵和油泵的运行转速是___的。
A. 线性变化
B. 不固定
C. 固定
【单选题】
HXD1电力机车进入机械室的空气,都经过___级除尘。
A. 一
B. 两
C. 三
【单选题】
HXD1电力机车网压监测保护:通过高压电压互感器的检测,在网压小于___kv或大于32kV的情况下,主断路器将进行分断。
A. 15
B. 17
C. 19
【单选题】
HXD1电力机车在每套牵引变流器中,由1个预充电电阻和___个交流接触器把2个四象限整流器和主变压器的2个牵引绕组连接起来。
A. 2
B. 3
C. 4
【单选题】
HXD1电力机车每节车2套变 流器中的2个辅助逆变器之间设置了___个隔离开关,用于当辅助逆变器故障时的冗余切换。
A. 2
B. 3
C. 4
【单选题】
HXD1电力机车三相380 V交流电由库内电源插座引入到机车的辅助系统,经辅助变压器反向___压后由相应的辅助逆变器向中间直流回路充电。
A. 恒
B. 升
C. 降
【单选题】
HXD1电力机车库用动车电路可以驱动双节机车以约___km/h的速度运行。
A. 3
B. 5
C. 7
【单选题】
HXD1电力机车牵引变压器除主变压器外,还 装有___台100Hz滤波电抗器。
A. 一
B. 两
C. 三
【单选题】
HXD1电力机车为了检测牵引电机的转速,在___端安装了测速装置。
A. 车轴
B. 传动
C. 非传动
【单选题】
HXD1电力机车接地开关操纵杆从一端旋转___到另一端时,闸刀也相应从“运行位"旋转102°到“接地位。
A. 60°
B. 90°
C. 180°
【单选题】
HXD1电力机车高压隔离开关处于合闸状态时,当电磁阀得到分闸信号,得电动作,打开气路,压缩空气经电磁阀进入压力气缸,推动操纵杆,使转轴旋转___,隔离开关分断。
A. 60°
B. 90°
C. 180°
【单选题】
HXD1电力机车每节车上装有___节蓄电池串联。
A. 24
B. 48
C. 96
【单选题】
HXD1电力机车每节车上蓄电池组标称电压___ V,采用浮充电方式工作。
A. 24
B. 48
C. 96
【单选题】
HXD1电力机车每节车有___个中央控制系统CCU机箱,分别工作为主控模式和从控模式,互为热备份。
A. 2
B. 3
C. 4
【单选题】
HXD1电力机车在正常运用模式,辅助压缩机在机车启动过程中辅助空气回路气压小于___kPa时启动。
A. 360
B. 480
C. 500
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Tom is a book lover. ______ likes reading very much. A. He B. She C. You D. It
A. A
B. B
C. C
D. D
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—May I listen to the music here, Mr. White? —Sorry, you’d better it like that. A. not to do B. not do to C. dont do D. not do
A. A
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3.—Did you have a good time at Lauras birthday party? — Yes, indeed. Its several years ________ I enjoyed myself so much. A. when B. before C. since D. that
A. A
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C. C
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A. A
B. B
C. C
D. D
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5. I was looking for a birthday gift for my mother, but I couldnt find ______ suitable. A. anything B. something C. nothing D. everything
A. A
B. B
C. C
D. D
【单选题】
6. A friend of my ____ and I are going to visit_______ next week. A. father; Browns B. father's; Browns C. father; the Browns D. father's; the Browns
A. A
B. B
C. C
D. D
【单选题】
7. She ______ very hard since she came to our school. A. studies B. has studied C. is studying D. studied
A. A
B. B
C. C
D. D
【单选题】
8. — Who will send you to the new school, your mom or your dad? — _______. Ill go there by myself. A. Both B. Either C. Neither D. None
A. A
B. B
C. C
D. D
【单选题】
9.—Well do what we can ____English well this term. —It’s high time for you to work hard. A. study  B.to study  C. be studied   D. be studying
A. A
B. B
C. C
D. D
【单选题】
10. —I’m going to Flower Bookstore. Could you tell me ______? — Sorry, I don’t know. I’m new here. A. where it is B. where was it C. where is it D. where it was
A. A
B. B
C. C
D. D
【单选题】
11. How do you like the dishes, Eric? — Fantastic! Nothing tastes ________. A. nice B. better C. terrible D. worse
A. A
B. B
C. C
D. D
【单选题】
12. ______ Lin Feng has to work late, she always wears a smile on her face. A. Because B. If C. Until D. Though
A. A
B. B
C. C
D. D
【单选题】
13.You can save money _______ you buy cheaper things. A. before B. unless C. if D. until
A. A
B. B
C. C
D. D
【单选题】
14. We will have a _________ holiday after the exam. A. two-month B. two month’s C. two month D. two-months
A. A
B. B
C. C
D. D
【单选题】
15. —We will build an underground in Xuzhou before 2015. — Wow, _______! Will it pass our place? A. what an excited news B. how excited the news is C. what exciting news D. how exciting
A. A
B. B
C. C
D. D
【单选题】
16. — Emily, here’s a dictionary.I hope it will help you in some way. — Thank you.It’s ________ what I need. A. almost B. still C. only D. just
A. A
B. B
C. C
D. D
【单选题】
17. —Oh.I’m hungry.Mum, can I have the hamburger on the plate? —No.It tastes . A. terribly B. terrible C. good D. well
A. A
B. B
C. C
D. D
【单选题】
18. —We can invite our teachers to the farewell party next Saturday. —Yes, ______? I’ll call them at once. A. what for B. what C. why not D. why
A. A
B. B
C. C
D. D
【单选题】
19.You can ________ ask the old man to move away to any other place because he has lived ________ here for at least sixty years. A. hardly; alone B. hard; alone C. hardly; lonely D. hardly; lonely
A. A
B. B
C. C
D. D
【单选题】
20.—I’m going back to see my grandparents this weekend. —________. A. It’s very nice of you B. You’d better hurry C. Say goodbye to them D. Give my best wishes to them
A. A
B. B
C. C
D. D
【单选题】
21.—Why not take ____ umbrella with the sign “Made in China”? It is useful. —What _______ good advice it is!    A. an; a B. a; a C. an; \ D. \; a
A. A
B. B
C. C
D. D
【单选题】
22. —Do you know the boy________ is sitting next to Peter? — Yes. He is Peter’s friend. They are celebrating his ________ birthday. A. who; ninth B. that; ninth C. /; ninth D. which; ninth
A. A
B. B
C. C
D. D
【单选题】
23. It was dark, ______ I couldnt see what was happening. A. or B. though C. but D. so
A. A
B. B
C. C
D. D
【单选题】
24.—You can use MSN to talk with Vivien on the Internet. —I know. But can you tell me ________? A. what I can use it B. when I can use it C. why can I use it D. how can I use it
A. A
B. B
C. C
D. D
【单选题】
25. _______ are you going to the School Uniform Exhibition, Amy ? To learn about different styles of school uniform. A. What B. Where C. Which D. Why
A. A
B. B
C. C
D. D
【单选题】
( ) 26. Where does the writer of "The little Prince" come from? A.England. B.France. C.America. D.China.
A. A
B. B
C. C
D. D
【单选题】
( ) 27. What does the prince do after the fox tells him a secret? A.He cares more about a flower and a sheep. B.He meets many more strange adults on other planets. C.He realizes his love for the rose and he goes back to his planet.   D.He discovers interesting things such as a snake, other roses and a fox
A. A
B. B
C. C
D. D
【单选题】
( ) 28. What does "The little Prince" mainly talk about? It' s about _________. A.the adult world B.the planet B -612 C.a rose and a fox D.the adventure of a young prince
A. A
B. B
C. C
D. D
【单选题】
( ) 29. What is the writer's main purpose(目的)in writing this passage?    A.To tell the readers his life story.    B.To tell people what kind of person his father was.    C.To tell the readers what present he got from his father.    D. To let people know how poor he was.
A. A
B. B
C. C
D. D
【单选题】
( ) 30. Why did the father not ask his son not to do this and do that?    A.Because he felt quite confident of his son.    B.Because he was born from a poor family.    C.Because he was a man of few words.    D.Because he didn't want to be much too strict with his son.
A. A
B. B
C. C
D. D
【单选题】
( ) 31. What would someone learn from this passage?    A.How to live by oneself. B.How to stand on one's own feet.    C.What a good father should do. D.What the self-important is like.
A. A
B. B
C. C
D. D
【单选题】
( ) 32. What may be the proper Chinese for the underlined part in the passage?    A.闲暇时光 B.学费 C.精神空虚 D.经济不足
A. A
B. B
C. C
D. D
【单选题】
( ) 33. Why did Natalie Smith pay for the six cars behind her? A. She had seven tickets. B. She hoped to please others. C. She knew the car drivers well. D. She wanted to show kindness.
A. A
B. B
C. C
D. D
【单选题】
( ) 34. Judy Foreman copied down the phrase because she ___ . A. thought it was beautifully written B. wanted to know what it really meant C. decided to write it on a warehouse wall D. wanted her husband to put it up in the classroom
A. A
B. B
C. C
D. D
【单选题】
( ) 35. Who came up with the phrase according to the passage? A. Judy Foreman. B. Natalie Smith. C. Anne Herbert D. Alice Johnson.
A. A
B. B
C. C
D. S
【单选题】
( ) 36. What can we infer from the last paragraph? A. People should practice random kindness to those in need. B. People who receive kindness are likely to offer it to others. C. People should practice random kindness to strangers they meet. D. People who receive kindness are likely to pay it back to the giver.
A. A
B. B
C. C
D. D
【单选题】
( ) 37.The greatest river for navigation is ___________. A. the Nile B. the Amazon C. the Mekong D. the Mississippi
A. A
B. B
C. C
D. D
【单选题】
( ) 38. From a dam, people can use the water for ___________. A. keeping the rivers clean B. only making electricity C. irrigation and making electricity D. washing clothes
A. A
B. B
C. C
D. D
【单选题】
( ) 39. The water in the river is polluted because of _____________. A. people's drinking water too much B. people's swimming in the river too much C. chemicals and other materials D. people's building a dam across a river
A. A
B. B
C. C
D. D
【单选题】
( ) 40. The best title of the passage is ___________. A. Rivers in Cities B. The importance of Rivers C. Transportation D. Natural Resources
A. A
B. B
C. C
D. D