问题 单项选择题

电力变压器运行时,下列哪项故障及异常情况应瞬时跳闸?()

A.由于外部相间短路引起的过电流

B.过负荷

C.绕组匝间短路

D.变压器温度升高和冷却系统故障

答案

参考答案:C

阅读理解与欣赏

阅读下面的文字,完成问题。

端午节

振鹏

  “明天不准停工。”

  这是端午节的前一天。在下午将要放工的时候,C厂一间机器隆隆的屋子外面,庄严的写字间的对面墙上——叫工人抬头发抖的布告处,张贴了这样一张新的布告。

  拿着血汗去兑换工银的工人,经过了长时间劳作之后,面色都呈现银灰如死的惨容,凝滞无光的双目更是冷涩不堪。在他们疲乏不支的躯体上,一个个都被棉花灰裹着,远看去就好像都穿了白花飞絮的花衣。悲鸣的汽笛第三次拉放之后,这些流血冒汗的动物(在他们的生活状况上着想,根本就不能说是“人”)都陆续从花絮飞舞、浊气蒸发的车间(工人工作的地方)里面没精打采、很狼狈地走出。出了车间,在他们眼帘前首先呈现的,就是厂主方才新贴的赫赫布告,在“不准停工”的字样之前,放工的伴侣们都不知不觉地呆立着,一些教育权在先天就被褫夺了的工人,张望了一回不觉就一致发出了“又是什么”的疑问,少数略微认得几个字的看后,即垂头丧气地发出了微微的叹息,从幽怨不平的叹息声中,可以听出“明天——不准停——工”的断句。一切看亲友、打牌、玩耍、休息的幻想和计划,都在这“明天——不准停——工”的断续声中化为轻烟——飘渺了而不可触摸了。

  这些血汗被榨取了的工人,现在都心坎里起了异样的感触。他们失望而又沉默地经过管门的挨次严厉的搜索之后,各自回到自己的暗淡而又简陋,且不经风雨的贫民窟里去了。

  “隆隆……”“隆……隆……隆……”常动不息的机器,仍旧不断地旋转着。

  “呜——”早晨第一次的汽笛响了,提了饭篮,拿了衣包,一个个工人依然照倒陆续走进那数千劳动者的总压榨机关内去拼滴血汗。

  花絮依旧飞舞着,浊气依旧.蒸发着,机器依旧转动着……这正是“不准停工”的“明天”——旧历端午节。

  又是汽笛一声,上午十二时放工的信号悲鸣了。

  车间里的机器不停地转动,花絮不停地飞舞,工人们各自在车轮转动花絮飞舞中,拿了饭篮,在机器旁的气管中吸取那黄色的带有强性锈质的蒸汽水,将饭泡热,用他们的午餐。花絮不时地落入碗内,随之就进了他们的口腔;纱头不时地断脱,饭碗便时常离开手而去从事工作。——这是每日的经常情形。不过在今天,各车间里都似乎是处在一种异样的哀怨、悲愤、沉闷、凄惨……的情景中。

  沉默着……只有机器转动声……

  一张数字较多的公告,又出现在黑色的魔鬼似的牌子上了:

  “王阿三、张小毛、李定国、胡小妹、余国香、朱长富、卫炳生、刘阿桂、张翠芝等九人,不服命令,擅自停工,着即开除,以警将来,此布。”

  第三次汽笛呜咽王,工人们机械似的又走出车间,拥挤到黑牌子旁边张望。

  只有“唉……唉……”“王阿三、张小毛……开除了”“开除了九个”的低微叹息声,在死的沉默中颤动着……

  一切依然继续着——飞絮的白花,出门时严密的搜索,疲乏躯体的挣扎。……

1.根据文意,解释下列语句中加粗的词语的含义。

(1)厂主方才新贴的赫赫布告。

______________________________________________

(2)一些教育权在先天就被褫夺了的工人

______________________________________________

(3)飘渺了而不可触摸了。

______________________________________________

2.文中多次描写工厂的汽笛声,这样写有什么作用?

________________________________________________________

3.关于“布告”在文中有不同的说法,请找出一两处,试分析一下作者为什么要这样写。

________________________________________________________

4.《端午节》和《包身工》同属于报告文学,这两篇文章既有相同点,也有不同点,请分别找出来并加以分析。

________________________________________________________

完形填空
Almost everyone wants to get smarter. We struggle to improve our  36_ , intelligence and attention. We drink cup after cup of coffee to help us  37_  the day.
 38 __, a new study published in Current Directions in Psychological Science warns that there are 39___ to how smart humans can get.
Each of our body parts develops in a certain way for a reason.  40  _, we are not 3 meters tall  41 _ most people’s hearts are not strong enough to send  42 _  up that high. Scientists say that our thinking ability works in the same way. A baby’s brain size is limited by a series of __43  , such as the size of the mother’s pelvis (骨盆). If our brains developed to be bigger, there could be more  44  during childbirth.
The study of Jews, who have an average IQ much _ 45_  than other Europeans, showed they were more  _46_  to develop diseases of the  _47_  system. This might be because of their increased brainpower.
If intelligence cannot be improved, can we at least get better at _ 48 _ ? Not really, say scientists. They studied  _49_  like caffeine (咖啡因)that improve attention. They found the drugs only helped people with serious  50 _ problems. For those who did not have trouble paying attention, the drugs could have the  51 _ effect. Scientists say that this suggests there is a(n)  52 limit to how much people can or should concentrate.
Our memory is also a “double-edged sword”. People with extremely good memories could  53__ having a difficult life because they cannot  _54 bad things that happen to them.
Thomas Hills, one of the authors of the paper, said that   55  all the problems in trying to get smarter, it’s unlikely that there will ever be a “super mind”.
小题1:
A.abilityB.characterC.memoryD.emotion
小题2:
A.go throughB.put throughC.get throughD.carry through
小题3:
A.ThoughB.ThereforeC.HoweverD.Meanwhile
小题4:
A.standardsB.measuresC.rangesD.limits
小题5:
A.At firstB.In additionC.For exampleD.Above all
小题6:
A.untilB.becauseC.beforeD.so that
小题7:
A.blood B.informationC.breathD.strength
小题8:
A.factors B.reasonsC.aspectsD.effects
小题9:
A.chancesB.deaths C.choicesD.lives
小题10:
A.smarterB.betterC.lowerD.higher
小题11:
A.likelyB.possibleC.probableD.sure
小题12:
A.physicalB.bodilyC.personalD.nervous
小题13:
A.exercisingB.concentrating C.memorizingD.thinking
小题14:
A.poisonsB.drinks C.plants D.drugs
小题15:
A.attentionB.familyC.healthD.living
小题16:
A.sameB.opposite C.differentD.similar
小题17:
A.lowerB.smallerC.upper D.higher
小题18:
A.end up B.make upC.start upD.come up
小题19:
A.forgetB.rememberC.performD.share
小题20:
A.supposingB.concerningC.consideringD.regarding