问题 问答题

背景资料

某水库除险加固工程内容有:(1)溢洪道的闸墩与底板加固,闸门更换;(2)土坝黏土灌浆、贴坡排水、护坡和坝顶道路重建。施工项目部根据合同工期、设备、人员、场地等具体情况编制了施工总进度计划,形成的时标网络图如图2-14所示(单位:d)。

施工中发生如下事件:

事件1:由于发包人未能按期提供场地,A工作推迟完成,B、G工作第25天末才开始。

事件2:C工作完成后发现底板混凝土出现裂缝,需进行处理,C工作实际持续时间为77d。

事件3:E工作施工过程中吊装设备出现故障,修复后继续进行,E工作实际持续时间为17d。

事件4:D工作的进度情况见表2-8。

表2-8工作的进度情况
项目名称计划工作量

/万元

计划/实际工作量/万元
0~20/d20~40/d40~60/d60~80/d80~90/d
计划实际计划实际计划实际计划实际计划实际
闸墩Ⅰ241098768    
闸墩Ⅱ2277658614  
闸墩Ⅲ22  878966  
闸墩Ⅳ22    6587810
闸墩Ⅴ24          
8678910      

注:本表中的时间按网络图要求标注,如20d是指D工作开始后的第20天末。

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问题

]

除A、C、E工作外,其他工作均按计划完成,计算工程施工的实际工期;承包人可向发包人提出多少天的延期要求。

答案

参考答案:

工程施工的实际工期=(210+6)d=216d。

承包人可向发包人提出5d的延期要求。

完形填空

The Meanings of Dreams

Sleep and dreams have interested people for centuries. Scientists are learning more about sleep, but they still know very little about why we dream.

  小题1:  First, we have most of our dreams during REM (rapid eye movement) sleep. At this time, the brain is very active. Second, everyone dreams – even if we cannot remember doing so when we awaken.    小题2:  While we are asleep, it works more slowly and sometimes puts our thoughts and memories together in strange ways.

   小题3:  Some believe that our dreams are associated with thoughts and feelings that we experience while we are awake. Many dream researchers think that a dream about death, for example, is really about an important life change.   小题4:   Dreams about a car or travel often represent feelings about your own life. Dreams about teeth – especially broken or loose ones may indicate stress and fear. Dreams in which you are flying often represent freedom or escape.

Researchers think people in our dreams can tell us something about ourselves. If the person in the dream was yelling (叫喊), for example, maybe you are angry.  小题5:  

There is still a lot about dreaming that we do not understand. By learning more about our dreams, we may learn more about ourselves.

A.Dreams may be more important than sleep.

B.Scientists do not know for certain why we dream.

C.If he or she was terrified, then maybe you are afraid of something.

D.Modern research can tell us some important things about dreams.E. There are three things you should pay attention to to have a sweet dream.

F. Finally, a part of our brain helps us to understand daily experiences we have.

G. Dreams about telephones are thought to be about giving or receiving an important message.

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