【单选题】
18. I called you at 4:00 yesterday afternoon, but nobody answered.
Sorry, I ______ with my friends at that time.
A. had swum B. swam C. would swim D. was swimming
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相关试题
【单选题】
19.––Who is on the playground? ---__________．
A. Never B. None C. No one D. A lot
【单选题】
20. The schoolboy ______ a blind man cross the street yesterday.
A. helps B. helped C. will help D. has helped
【单选题】
21. —The 2010 World Expo which will last 184 days will be held in Shanghai on May 1st.
—________exciting news! We shall try our best to support it.
A. How B. How an C. What D. What an
【单选题】
22. They preferred ______ in bed rather than _____ horses．
A. to lie; to ride B. lying; riding C. lying; ride D. to lie; ride
【单选题】
23. —What was Jim wearing at the party?
— Nothing _______. He was in his usual shirt and jeans.
A. special B. simple C. important D. interesting
【单选题】
24. The 2016 Olympic Games ________ in Brazil. Would you like to go there?
Maybe, if possible.
A. are held B. will be held C. were held D. have been held
【单选题】
25. — David, look at the man in white over there．Can you tell me _______ ?
—He is a doctor．
A. who is he B. who he is C．what does he do D. what he does
【单选题】
( ) 26.With help from a Mr. H, you can__________.
A. stop wearing your watch B. get new books and objects
C. finish your homework on time D. know when parents or teachers are near
【单选题】
( ) 27. A PENGO WATCH CONTROL can help you to ______________.
A. repair your TV B. put away your books and objects
C. become a James Bond D. get a daily weather report
【单选题】
( ) 28. You can get your Mr. H for___________.
A. $299 B. $499 C. $199 D. $99
【单选题】
( ) 29. When was canned food invented?
A. In 1870. B. In 1810. C. In 1902. D. In 1926.
【单选题】
( ) 30. After the trip to the Arctic, Clarence Birdseye invented ____________.
A. canned food B. can openers
C. frozen food D. air conditioning
【单选题】
( ) 31. Changes in weather _____________ in Willis Carrier's company.
A. helped to keep food B. made rooms comfortable
C. caused health problems D. hurt printing paper
【单选题】
( ) 32. According to the passage, which of the following may lead to inventions?
A. People's needs. B. Public support.
C. Modern technology. D. Practical suggestions.
【单选题】
( ) 33. 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．
【单选题】
( ) 34. 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．
【单选题】
( ) 35. 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．
【单选题】
( ) 36. 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
【单选题】
( ) 37. The Chinese Yellow Sea Wetlands are in the _______ of China．
A．south B．east C．west D．north
【单选题】
( ) 38. Usually the weather in the wetlands is _______．
A．hot B．pleasant C．cold D．dry
【单选题】
( ) 39. The World Wetlands Day is on _______．
A．February 2 B．June 25 C．April 22 D．March
【单选题】
( ) 40. We must protect wetlands because _______．
A．they are home for wildlife B．they can prevent flood
C．they can offer food to the animals and birds D．all of the above
【单选题】
) 1. —Is it far from here to the bank?
—Not very, only________．
A. 20 minute’s walk B. 20 minutes walk
C. 20 minutes’ walk D. 20 minutes’ walks
【单选题】
2. — After discussing, the students ________ some good ideas to work on the project.
— Thats great!
A. put up B. set up C. caught up with D. came up with
【单选题】
3. Yesterday Tommy walked past my table and ______ my bowls and dishes.
He should be careful next time.
A. knocked off B. took off C. showed off D. turned off
【单选题】
4.We don’t have enough nurses to look after patients．At least ___ nurses are needed．
A. ten another B. more ten C. another ten D. other ten
【单选题】
5. — Zhao Rui, it’s said that many famous singers will come to Yangzhou on April 18th. How about watching the evening show there?
—________! Let’s ask Huang Tao to go with us.
A. Best wishes B. Sounds great C. Good luck D. That’s OK
【单选题】
6.—Hello! This is Henry Speaking．I’d like to speak to your father．
—Sorry, he has Shanghai．
A. been in B. been to C. come to D. gone to
【单选题】
7. — It’s difficult for the village children to cross the river for school．
— I think a bridge ______ over the river．
A. was built B. is being built C. has been built D. should be built
【单选题】
8. —Where would you like to go, Jinan or Qufu?
— ．I only want to go to Qingdao．
A. Each B. Either C. Neither D. All
【单选题】
9 — The documentary A Bite Of China II is quite popular around China recently. How do you like it? ______.
A. I think so B. Pretty good C. Its my pleasure D. All right
【单选题】
10. There are three English-books on the shelf, but ______ of them is mine.
A. both B. neither C.all D. none
【单选题】
11. When the parents arrived at the hall, the students _______ their projects.
A. have finish B. finished C. had finished D. are finishing
【单选题】
12. This week, the _______ seems to change every day: one day is hot; the next day is cold.
A. time B. weather C. season D. way
【单选题】
13. He never does his work _______ Mary.
A. as careful as B. so careful as C. carefully as D. as carefully
【单选题】
14. — Can he jump high?
— Yes, he ______. He is a good high jumper.
A. must B. need C. can D. shall
【单选题】
15. The shop _____ at 8:00 a．m．and it ________ for ten hours every day．
A. is open; has opened B. is opened; opens
C. opens; is open D. opened; opens
【单选题】
16. —Excuse me, may I use your bicycle? ______ is broken.
Certainly. But remember to return it before lunch.
A. Mine B. Me C. Myself D. I
【单选题】
17. Simon, what do I need to take for the hiking?
Youd better ________ more water than usual. Its hot today.
A. to take B. taking C. take D. took
【单选题】
18. Helen ______ to a language school when she was seven.
A. sent B. is sent C. will send D. was sent
推荐试题
【单选题】
通过直接现场检查___，进行气化系统操作的稳定性判断。
A. 水冷壁循环泵的运行
B. 仪表吹洗
C. 锅炉给水及烧嘴调温水质量
D. 炉渣的外观
【单选题】
原始开车时，系统置换最终以多点分析氧含量为多少合格？___
A. 0.5%
B. 0.4%
C. 0.3％
D. 0.2％
【单选题】
粉煤在不同的管道流动时，粉煤的流速与管道截面积___。
A. 成正比
B. 成反比
C. 无法判断
D. 无关
【单选题】
粉煤输送的气体流速改变时，粉煤的质量流速___。
A. 会改变
B. 不改变
C. 会增大
D. 会减小
【单选题】
粉煤输送顺控在“待用”状态时，___是触发粉煤输送顺控运行的条件。
A. 粉煤给料罐料位低
B. 粉煤收集罐料位低
C. 粉煤放料罐料位低
D. 布袋过滤器 S-1101 料位高
【单选题】
机器的载荷大，选用的润滑油粘度___。
A. 相对较小
B. 相对较大
C. 相同
D. 任意
【单选题】
用于在封闭的容器里精确测量固体料位一般用___料位计。
A. 差压式
B. 浮筒式
C. 放射源
D. 磁浮式
【单选题】
负荷降低时，气化炉水冷壁的蒸汽产量的变化是___
【单选题】
当渣末固含量上升时可采取的措施调整有___
A. 降低氧煤比
B. 提高氧煤比
C. 不调整
D. 提高水氧比
【单选题】
氧气管道可以用___吹扫、试漏和试压。
【单选题】
气化炉停车时，汽包卸压速率不可过快，同时还要注意___与环形空间温度之差。
A. 汽包锅炉给水温度
B. 合成气冷却器出口温度
C. 汽包水汽温度
D. 煤烧嘴冷却水温度
【单选题】
通气锥出现堵塞故障的处理方法为___。
A. 增大氮气流通量
B. 减少氮气流通量
C. 立即停车更换
D. 监护运行，必要时进行再生或更换
【单选题】
正常运行状况下，粉煤粒度是由___控制。
A. 旋转分离器转速
B. 称重给煤机转速
C. 燃烧鼓风机转速
D. 磨煤机转速
【单选题】
气化炉出渣口堵塞可从___来进行判断。
A. 渣放料罐液位
B. 激冷室与 V-1401 压差
C. 渣池液位
D. 灰水循环泵流量
【单选题】
为提高洗涤塔的卤素的脱除效率，在___入口加入少量 20%（wt）的 NaOH 碱液。
A. 蒸汽喷射器
B. 混合器
C. 洗涤塔顶部
D. 激冷室
【单选题】
自动控制系统调节品质的优劣，表示了控制系统克服___能力的大小。
A. 内在干扰
B. 外来干扰
C. 被调参数
D. 内控参数
【单选题】
下列选项中，不会造成煤烧嘴水夹套冷却水流量波动的原因有___。
A. 调节阀性能不好
B. 管道堵塞
C. 循环水泵运行异常
D. 温度变化大
【单选题】
开车过程中汽包液位上升是由于气化炉受热面炉水中形成的蒸汽汽泡___而引起的。
【单选题】
洗涤塔液位计指示失灵后的处理方法为___。
A. 停用该液位计
B. 短期解除该联锁联系仪表处理
C. 激冷水量调整
D. 补入水量置手动调整
【单选题】
下列导致破渣机直接故障停运的原因有___。
A. 渣量大
B. 密封水中断
C. 渣水温度高
D. 渣水温度低
【单选题】
正常运行中，磨煤机跳闸的处理方法有___。
A. 立即联系电气重新启动
B. 引入消防氮气
C. 磨煤全停
D. 原煤仓立即停止进煤
【单选题】
当磨煤机内有积煤时，为防止煤粉爆炸，启动循环风机前应先投用___。
A. 冷却水
B. 消防氮气
C. 低压蒸汽
D. 仪表空气
【单选题】
系统停电后，由___保证 DCS 和其它重要设备的用电。
A. 低压软启动器
B. UPS 装置
C. FCS 系统
D. DCS 系统
【单选题】
需要在泵出口管线上安装安全阀的是___。
A. 离心泵
B. 柱塞泵
C. 真空泵
D. 不需要
【单选题】
激冷水泵 P-1301A/B/C 出口流量应该控制在___。
A. 180-200t/h
B. 250-300t/h
C. 300-370t/h
D. 400-430t/h
【单选题】
气化炉内黑水的 pH 值控制在之间___。
A. 6.5～7.0
B. 7.5～8.0
C. 6.5～7.5
D. 8.0～8.5
【单选题】
气化炉整体分为上下两个室，上段为( )，下段为( )。选___
A. 反应室，洗涤室
B. 激冷室，反应室
C. 反应室，激冷室
D. 洗涤室，反应室
【单选题】
烧嘴采用四通道结构，同心圆布置，采用水冷盘管或水冷夹套方式冷却。第二流道走___。
【单选题】
当制粉系统氧量超过___时自动紧急停车。
A. 5％
B. 8％
C. 11％
D. 15％
【单选题】
空气炮利用___产生的能量克服物料因静摩擦而形成的起拱或粘壁。
A. 气体从缝隙穿过
B. 突然喷出的压缩空气所产生的强大气流急剧膨胀
C. 电机带动转耙旋转推动物料流动
D. 压缩空气所产生的涡流
【单选题】
洗涤塔循环水的分析主要是为了提高粗合成气中___成份的脱除效率
【单选题】
气化开车过程中，若开工失败，系统吹扫需要进行（ ），若投煤失败，系统吹扫需要进行___。
A. 短吹 一升一降
B. 二升二降 一升一降
C. 一升一降 二升二降
【单选题】
煤烧嘴开车时进料的顺序是先进___。
A. 氧气
B. 蒸汽
C. 粉煤
D. 仪表空气
【单选题】
下面对捞渣机的操作叙述不正确的___。
A. 捞渣机应尽可能无负荷启动
B. 捞渣机必须带负荷启动
C. 运转过程中出现明显的噪声应紧急停车
D. 正常情况下，应使渣排尽后再停捞渣机
【单选题】
气化炉的热备用状态通常是指气化炉的内壁、管束以及合成气冷却器的温度至少达到___。
A. 120℃
B. 200℃
C. 250℃
D. 300℃
【单选题】
气化仪表联锁停车大多采用了___的取值式。
A. 二取一
B. 三取二
C. 三取三
D. 四取三
【单选题】
粉煤给料罐通气锥氮气量由流量控制器和差压控制器输出进行___后控制。
【单选题】
当全部操作员站出现故障时（所有上位机黑屏或死机），操作员应立即___。
A. 启动紧急停车硬按钮
B. 联系仪表解决
C. 等待系统跳车
D. 凭经验操作
【单选题】
正常生产期间，可以通过观察锯齿波曲线的趋势来检查___操作的稳定性。
A. 锁斗系统
B. 氮气系统
C. 蒸汽系统
D. 氧气系统
