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第三篇Renewable Energy SourcesToday petroleum (石油)provides around 40% of the world’s energy needs, mostly fuelling automobiles. Coal is still used, mostly in power stations, to cover one-quarter of our energy needs, but it is the least efficient, unhealthiest and most environmentally damaging fossil fuel(矿物燃料). Natural gas reserves could fill some of the gap from oil, but reserves of that will not last into the 22nd century either. Most experts predict we will exhaust easily accessible reserves within 50 years. Less polluting renewable energy sources offer a more practical long-term energy solution. "Renewable" refers to the fact that these resources are not used faster than they can be replaced.Hydroelectric(水力发电的) power is now the most common form of renewable energy, supplying around 20% of world electricity. China’s Three Gorges Dam is the largest ever. At five times the size of the US’s Hoover Dam, its 26 turbines(涡轮机) will generate the equivalent energy of 18 coal-fired power stations. It will satisfy 3% of China’s entire electricity demand.In 2003, the first commercial power station to use tidal (潮汐的)currents in the open sea opened in Norway. It is designed like windmill (风车), but others take the form of turbines.As prices fall, wind power has become the fastest growing type of electricity generation-quadrupling (翻两番)worldwide between 1999 and 2005. Modem wind farms consist of turbines that generate electricity. Though it will be more expensive, there is more than enough wind to provide the world’s entire energy needs. Wind farms come in onshore and offshore forms. They can often end up at spots of natural beauty, and are often unpopular with residents. And turbines are not totally harmless, they can interfere with radar, alter climate and kill sea birds. Scotland is building Europe’s largest wind farm, which will power 200, 000 homes. The UK’s goal is to generate one-fifth of power from renewable sources, mainly wind, by 2020. But this may cause problems, because wind is unreliable. One of the problems with wind farms is that（）.
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第二篇Good Table MannersManners play an important part in making a favorable impression at the dinner table. Here are some general rules:Napkin (餐巾) useThe meal begins when the host unfolds his or her napkin. This is your signal to do the same, so place your napkin on your lap. Unfold it completely if it is a small napkin, or in half, lengthwise (纵向地), if it is a large dinner napkin.If you need to leave the table during the meal, place your napkin on your chair as a signal to your server that you will be returning. Once the meal is over, place your napkin neatly on the table to the right of your dinner plate. Do not refold it.Use a napkin only for your mouth. Never use it for your nose, face or forehead.Use of utensils (餐具)Start with the knife, fork or spoon furthest from your plate, and work your way in, using one utensil for each course.If soup is served, remember to spoon away from yourself. This helps stop the drips. Do not put the entire soup spoon in your mouth. Instead, fill a soup spoon about 75 per cent with soup, and sip (啜饮) it from the side noiselessly.After finishing dinner, place the knife and fork parallel to one another across the Plate with the knife alade facing inward toward the plate.Using your f’ingersHere’s a list of finger foods: sandwiches, cookies, small fruits or berries with stems, French fries and potato chips, hamburgers.Chew(咀嚼) with your mouth closed and don’t make noise; don’t talk with your mouth full.Bread must be broken with your hands. It is never cut with a knife.Don’t pick something out of your teeth. Instead, excuse yourself to the bathroom.If possible, try not to cough at the table.Do not put your elbows(肘) on the table. In France, it is essential to have both hands above the table at the same time.Do not put bones or anything else on the table. Things that are not eaten should be put on your plate. The napkin is used only for（）.
电解某物质的外加电压通常包括（）和（）。
简答题 结合实际谈谈，为什么说企业的培训需求是一个永恒的话题？
案例分析题四、某工程，建设单位和施工单位按《建设工程施工合同 （示范文本）》签订了施工合同，在施工合同履行过程中发生如下事件：事件1：工程开工前，总监理工程师主持召开了第一次工地会议。会上，总监理工程师宣布了建设单位对其的授权，并对召开工地例会提出了要求。会后，项目监理机构起草了会议纪要，由总监理工程师签字后分发给有关单位；总监理工程师主持编制了监理规划，报送建设单位。事件2：施工过程中，由于施工单位遗失工程某部位设计图纸，施工人员凭经验施工，现场监理员发现时，该部位的施工已经完毕。监理员报告了总监理工程师，总监理工程师到现场后，指令施工单位暂停施工，并报告建设单位。建设单位要求设计单位对该部位结构进行核算。经设计单位核算，该部位结构能够满足安全和使用功能的要求，设计单位电话告知建设单位，可以不作处理。事件3：由于事件2的发生，项目监理机构认为施工单位未按图施工，该部位工程不予计量；施工单位认为停工造成了工期拖延，向项目监理机构提出了工程延期申请。事件4：主体结构施工时，由于发生不可抗力事件，造成施工现场用于工程的材料损坏，导致经济损失和工期拖延，施工单位按程序提出了工期和费用索赔。事件5：施工单位为了确保安装质量，在施工组织设计原定检测计划的基础上，又委托一家检测单位加强安装过程的检测。安装工程结束时，施工单位要求项目监理机构支付其增加的检测费用，但被总监理工程师拒绝。问题： 事件3中项目监理机构对该部位工程不予计量是否正确？说明理由。项目监理机构是否应该批准工程延期申请？为什么？
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