问题 问答题 简答题

从建筑施工作业特点和环境来看,导致危险源密集、施工危险性增大的危险有害因素体现在几个方面?

答案

参考答案:

(1)施工作业中露天作业时间长,作业量大,作业过程中受气候条件影响大(露天作业量约占总量的70%);

(2)施工环境变化频繁及施工作业流动性大;

(3)施工项目工序复杂,变化大;

(4)在建筑施工过程中,高处作业约占90%,施工项目高处作业多;

(5)建筑施工过程中的施工作业面狭窄,交叉作业多;

(6)施工作业劳动强度大,手工劳动多;

(7)从业人员的操作过程复杂程度高;

(8)人机混合作业产生的机械伤害;

(9)施工项目存在临时性和一次性特点。

选择题
完形填空
完形填空(共20小题,每小题1.5分,满分30分)
Miss Green was watching TV. Suddenly the program stopped . "Now we broadcast an important notice from the  36 : At about nine this evening , an old woman of 79 ,named Mrs Humney , was 37 and killed by a robber (抢劫犯)wearing a green coat . Those who can supply any clue (线索)are requested to  38   to the police ." The  39 news made the lonely girl filled with  40  .She couldn't help looking around .But she didn't  41 that a man was already behind the door.
Suddenly the man  _42  before Miss Green . The girl didn't know what to __43 . " Just put your necklace on the table, then I’ll  44  whether I shall be safe to stay here for the night." said the robber. That made her even more terrified , but she tried to  45  herself.
Just then there came the whistle of a police car .Then  46  the door bell. The man said with a pistol(手枪) 47  the girl's back, " Don't  48  the door. Never let him in." But the girl got a(n)  49 . She asked the man outside the door , " Who is it ?" "I'm Bull. Is there  50  unusual here ?" "No, there isn't ." Immediately she added  51  ," only 52  and I are here." "Good night, " Bull replied in the same loud voice.
A few minutes later. The sound of the  53 died away. " It's well done, " the robber laughed. Almost at the same time the glass was  54  into pieces . The policemen  55  into the room and caught the robber.
"Miss Green , what you said made us take action right away, " said Bull, " for we know that you have no brother."
36. A. police        B. government          C. army                   D. prison
小题1:
A.hitB.stolenC.robbedD.cheated
小题2:
A.announceB.knowC.provideD.report
小题3:. A .terrible             B exciting                 C. strange                 D. funny
小题4: A. anger             B. fear                        C surprise                 D. sadness
小题5:
A.feelB.lookC.hearD.notice
小题6:
A.cameB.appearedC.walkedD.ran
小题7:.
A.sayB.makeC.doD.deal
小题8:
A.decideB.considerC.hopeD.doubt
小题9:
A.protectB.scareC.freeD.calm
小题10:
A.touchedB.hitC.rangD.struck
小题11:
A.againstB.inC.toD.over
小题12:
A.knockB.shutC.leanD.open
小题13:
A.beliefB.ideaC.helpD.voice
小题14:
A.anythingB.somethingC.anyoneD.someone
小题15:.
A.excitedB.anxiouslyC.loudlyD.bravely
小题16:.
A.my friendB.my neighbourC.the robberD.my brother
小题17:
A.policemanB.police carC.robberD.footsteps
小题18:
A.turnedB.broughtC.brokenD.changed
小题19:
A.slippedB.wentC.fellD.hurried