【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
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答案
B
解析
B
相关试题
【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
【单选题】
) 1. Even Tony’s six-year-old son asked him ______ smoking. A. stops B. stopped C. to stop D. stopping
A. A
B. B
C. C
D. D
【单选题】
2.—What do you think of the lecture of Li Yang’s Crazy English? — I think it’s _______ , but someone thinks it’s much too ________. A. wonderful enough; bored B. enough wonderful; boring C. enough wonderful; bored D. wonderful enough; boring
A. A
B. B
C. C
D. D
【单选题】
3.—He didn’t go to the lecture this morning, did he?    — _____ .Though he was not feeling very well. A. No, he didnt B. Yes; he did C. No, he did D. Yes, he didnt
A. A
B. B
C. C
D. D
【单选题】
4. If you read a lot, your life ______ full of pleasure. A. will be B. is C. be D. was
A. A
B. B
C. C
D. D
【单选题】
5. The black bag _________ be Annas. She has a blue one. A. should B. cant C. wouldnt D. could
A. A
B. B
C. C
D. D
【单选题】
6. Susan, why are you still here? They are all ready to start. Im sorry, but I _________ when to start. A. dont tell B. wasnt told C. didnt tell D. havent told
A. A
B. B
C. C
D. D
【单选题】
7.—Why dont you choose the red tie?    —For me, it doesn’t _____ my shirt very well. A. fix B. accept C. compare D. match
A. A
B. B
C. C
D. D
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【单选题】
固定筛倾斜角度一般在___。
A. 30°~40°;
B. 45°~55°;
C. 55°~60°;
D. 60°以上。
【单选题】
固定筛筛孔尺寸应为筛下物的___倍。
A. 2.5;
B. 2;
C. 1.5;
D. 1.2~1.3。
【单选题】
一般情况下,固定筛的长度L 为___m。
A. 1.5;
B. 2~5;
C. 3.5~6;
D. 6.5。
【单选题】
带式电磁除铁器的布置方式有___种。
A. 一;
B. 二;
C. 三;
D. 四。
【单选题】
带式除铁器是由电磁铁,机架,驱动电机,减速机,___,弃铁皮带,支撑托辊和冷却风机等组成。
A. 主、从动滚筒;
B. 改向滚筒;
C. 光面滚筒;
D. 拉紧滚筒。
【单选题】
皮带机头部安装带式除铁器时,除铁器离皮带机滚筒的距离为___mm 最合适。
A. l00;
B. 200;
C. 300;
D. 400。
【单选题】
带式除铁器的外接电源是___V。
A. 220;
B. 250;
C. 380;
D. 420。
【单选题】
带式除铁器的直流电路采用___整流回路。
A. 单相半波;
B. 三相桥式;
C. 三相半波;
D. 单相半波或三相半波。
【单选题】
带式除铁器运行中强磁保持时间一般为___s。
A. 6;
B. 10;
C. 12;
D. 15。
【单选题】
当带式除铁器与金属探测器配套使用时,要定期检查金属探测器的___。
A. 除铁效果;
B. 磁场强弱;
C. 动作情况;
D. 完好情况。
【单选题】
DDC —14带式电磁除铁器适用输煤皮带宽度为___mm.。
A. 800;
B. 1000;
C. l200;
D. 1400。
【单选题】
皮带秤的作用是___。
A. 测量皮带的重量;
B. 测量皮带的速度;
C. 计量皮带输送的煤量;
D. 对煤在皮带输送机静止时称重。
【单选题】
电子皮带秤应安装在离落料点___m 以外的区段上,保证其测量精度。
A. 5;
B. 10;
C. 14;
D. 15~20。
【单选题】
皮带秤应每月进行实煤校验2~4次,校验的煤量不小于皮带出力的___。
A. 0.5%;
B. 1.5%;
C. 2%;
D. 5%。
【单选题】
皮带秤计量误差率应小于___。
A. ±0.5%;
B. ±1.5%;
C. ±2%;
D. ±5%。
【单选题】
皮带机头部采样机的破碎机出料粒度应小于___ mm。
A. 6;
B. 10;
C. 20;
D. 30。
【单选题】
皮带机头部采样机的缩分器的缩分比为___可调。
A. 1~1∕20;
B. 1~1∕40;
C. 1~1∕60;
D. 1~1∕80。
【单选题】
采样机的年投运率要求达到___。
A. 90%;
B. 80%;
C. 95%;
D. 99%。
【单选题】
检验机械化采样装置采取样本的代表性,实际就是检验该装置的采样是否存在___偏差。
A. 操作;
B. 偶然;
C. 系统;
D. 过失。
【单选题】
犁式卸料器具有安全可靠、配煤方便、结构简单、___、维护量小等优点。
A. 体积重;
B. 重量轻;
C. 磨损少;
D. 刚度大。
【单选题】
清扫器皮带条应露出其金属夹板___ mm。
A. 10~14;
B. 5~10;
C. 15~20;
D. 10~20。
【单选题】
推煤机为了防止摩擦片的烧损,严禁离合器处于___状态。
A. 半结合;
B. 结合;
C. 分离;
D. 工作。
【单选题】
推煤机不允许在硬路上高速行驶,禁止使用___。
A. 四挡、五挡;
B. 一、二挡;
C. 二挡、三挡;
D. 空挡。
【单选题】
煤刮板机在电厂输煤系统中,大多用来作为___。
A. 给、配煤设各;
B. 煤场设备;
C. 卸煤设备;
D. 输送设备。
【单选题】
调整清扫刮煤板时,应保证刮煤板与对应滚筒平行度允差为___mm。
A. 2;
B. 3;
C. 3.5;
D. 4。
【单选题】
推煤机在无负荷的情况下,从障碍物上下来时,可使用___。
A. 制动器;
B. 离合器;
C. 加速器;
D. 变速器。
【单选题】
装有犁煤式卸料器的带式输送机,为减少胶带磨损,带速一般不宜超过___。
A. 3.5m∕s;
B. 2.5m∕s;
C. 2m∕s;
D. 1.8m∕s。
【单选题】
煤尘对人体的危害,特别是粒度为___μm的粉尘,容易透肺叶,使工人患职业病。
A. 0.6-10;
B. 0.5-5;
C. 0.1-0.3;
D. 10-20。
【单选题】
输煤系统室内空气粉尘含量应不大于___mg∕m³。
A. 20;
B. 15;
C. 10;
D. 5。
【单选题】
单位体积气体中所含的粉尘___,称为气体中的粉尘浓度。
A. 数量;
B. 质量;
C. 占有量;
D. 容量。
【单选题】
常用的除尘器按机械类型可分为:重力除尘器、惯性除尘器和___除尘器3类。
A. 高压静电;
B. 喷水;
C. 旋风;
D. 布袋。
【单选题】
推煤机堆煤的高度较高,其爬坡角为25°,极限爬坡角应小于___。
A. 60°;
B. 50°;
C. 45°;
D. 30°。
【单选题】
推土机配合斗轮作业时,应保持___m 的安全距离。
A. 2;
B. 1;
C. 3;
D. 0。
【单选题】
皮带预启当中响铃持续时间不应少于___s。
A. 5;
B. 10;
C. 20;
D. 30。
【单选题】
输煤设备启动前,应先启动___。
A. 碎煤机;
B. 除铁器;
C. 翻板;
D. 预警铃。
【单选题】
输煤系统在正常起动时,按___煤流方向起动设备。
A. 顺;
B. 逆;
C. 二者均可;
D. 随时改变。
【单选题】
叶轮给煤机行走轨道,两轨间顶面标高允许___。
A. 不大于3mm;
B. 小于5mm;
C. 6mm;
D. 8mm。
【单选题】
程控自动配煤的优先顺序为___。
A. 强配、低配、顺配、余配;
B. 强配、顺配、余配、低配;
C. 顺配、余配、低配、强配;
D. 低配、强配、余配、顺配。
【单选题】
集中手动、进行操作时,必须按照逆煤流方向逐一启动各设备,否则会因不满足___条件启动不起来。
A. 联锁;
B. 单机;
C. 多机;
D. 解锁。
【单选题】
叶轮给煤机行走轨道轨顶标离误差允许___。
A. ±5mm;
B. ±10mm;
C. ±15mm;
D. ±20mm。