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【单选题】
若中断供电时可能造成人身伤亡情况,则称为二类负荷。___
A. 对
B. 错
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用数字万用表测量直流电压时,极性接反会损坏数字万用表。___
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为了考核电气设备的绝缘水平,我国规定:10KV对应的允许最高工作电压为11.5KV。___
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“在此工作!”标示牌挂在已停电的断路器和隔离开关上的操作把手上,防止运行人员误合断路器和隔离开关。___
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验电器一般每半年进行一次绝缘试验。___
A. 对
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电磁操动机构的缺点之一是需配备___。
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B. 大容量直流合闸电源
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SF6负荷开关的灭弧能力较SF6断路器___。
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断路器的工作状态(断开或闭合)是由___控制的。
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___,只有在发生短路事故时或者在负荷电流较大时,变流器中才会有足够的二次电流作为继电保护跳闸之用。
A. 交流电压供给操作电源
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绝缘棒使用完后,应___在专用的架上,以防绝缘棒弯曲。
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额定电压是指变压器___,它应与所连接的输变电线路电压相符合。
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变压器___通常分为无励磁调压和有载调压两种方式。
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架空线路导线通过的___不应超过其允许电流。
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避雷针通常采用___制成。
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验电时应在检修设备___各相分别验电。
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在高压室内的二次接线和照明回路工作,需将高压设备停电或做安全措施时应使用___。
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如果电缆沟等低洼处积聚的六氟化硫(SF6)气体多了会引起工作人员窒息事故。___
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为确保安全,户外变电装置的围墙高度一般应不低于3米。___
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绝缘鞋可作为防护跨步电压的基本安全用具。___
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高压配电线路的电压一般为10KV20KV。___
A. 对
B. 错
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频率是电能质量的重要指标之一,我国电力采用交流60HZ频率,俗称“工频”。___
A. 对
B. 错
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为了保证电压质量合乎标准,往往需要装设必要的有功补偿装置和采取一定的调压措施。___
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导体电阻的大小与导体的长度成反比,与横截面积成正比,并与材料的性质有关。___
A. 对
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避雷线的作用原理与避雷针相同,只是保护范围较大。___
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电气设备相位漆标识的黄、绿、红颜色分别代表___相位。
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断路器应有标出___等内容的制造厂铭牌。
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继电保护的___是指电力系统发生故障时,保护装置仅将故障元件切除,而使非故障元件仍能正常运行,以尽量缩小停电范围的一种性能。
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电力变压器按冷却介质可分为___和干式两种。
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10M电杆埋设深度宜___。
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当消弧线圈的电感电流大于接地电容电流时,接地处具有多余的电感性电流,这种补偿方式称为___。
A. 欠补偿
B. 过补偿
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在三相交流电路中,负载消耗的总有功功率等于___。
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线路验电应逐相进行。同杆架设的多层电力线路验电时,先验低压后验高压___。
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线路验电应逐相进行。同杆架设的多层电力线路验电时,先验低压后验高压___。
A. 先验上层后验下层
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对运行中的高压电容器巡视检查时,一般不检查高压电容器组的工作电流。___
A. 对
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六氟化硫(SF6)断路器用六氟化硫(SF6)气体作为绝缘介质和灭弧介质。___
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Tom is a book lover. ______ likes reading very much. A. He B. She C. You D. It
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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
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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
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【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
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11. How do you like the dishes, Eric? — Fantastic! Nothing tastes ________. A. nice B. better C. terrible D. worse
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12. ______ Lin Feng has to work late, she always wears a smile on her face. A. Because B. If C. Until D. Though
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13.You can save money _______ you buy cheaper things. A. before B. unless C. if D. until
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14. We will have a _________ holiday after the exam. A. two-month B. two month’s C. two month D. two-months
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【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
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【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
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【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
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【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
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