华电2011真题

华电新疆发电有限公司昌吉热电厂2011年度生产人员《安规》考试复习题一、填空题1 、安全生产，人人有责，贯彻"安全第一、预防为主、综合治理"的方针，树立"以人为本、安全发展"的理念。

2、厂房内设备、材料、工器具的放置应整齐、有序，标识清楚，定置规范管理。

门口、通道、楼梯和平台等处不准放置杂物，并保持畅通。

现场经常有人通行的通道上不准设有临时电缆、管道等，地面上临时放有容易使人绊跌的物件，如钢丝绳、电缆、管道等时，应采取防护措施和设置明显的安全警示标志。

3、在试验和推广新技术、新工艺、新设备、新材料的同时，应制定相应的安全措施，经本单位主管生产的领导(总工程师)批准后执行。

4、发现有违反本规程的情况，应立即制止，经纠正后方可恢复作业。

各类作业人员有权拒绝违章指挥和强令冒险作业；在发现直接危及人身、没备安全的紧急情况时，有权停止作业，或者在采取紧急措施后撤离作业场所，并立即报告。

5、所有新入厂的人员(含实习、代培人员)，必须经厂、车间和班组三级相应内容的安全教育培训，告知作业现场和工作岗位存在的危险因素、防范措施及事故应急措施，并按本规程和其他相关安全规程的要求，考试合格后方可进入现场参加指定的工作。

6、工作人员应熟悉本岗位所需的安全生产应急知识及技能，了解作业场所危险源分布情况和可能造成人身伤亡的危险因素，熟悉相关应急预案内容，掌握逃生、自救、互救方法。

7、工作人员的工作服不应有可能被转动的设备绞住的部分，工作时必须穿着工作服，衣服和袖口必须扣好，禁止戴围巾；工作人员进入生产现场禁止穿用尼龙、化纤或棉、化纤混纺的衣料制作的衣服，以防遇火燃烧加重烧伤程度；工作人员进入生产现场禁止穿裙子、短裤、拖鞋、凉鞋、高跟鞋，辫子、长发必须盘在帽内。

8、接触高温物体的工作时，作业人员应戴手套、穿专用防护服和防护鞋。

9、生产厂房内外必须保持清洁完整，进出通道畅通。

10、工作场所的井、坑、孔、洞或沟道，必须覆以与地面齐平的坚固的盖板；盖板上的把手不得高于盖板平面，在一些较大的孔、洞口上还应加装部分横梁，使盖板承受力符合规范要求。

2011考研复试题目{电自）1.画图题：画发电机隐极式和凸极式的相量图，包含暂态电势2.长距离高压输电线路串联电容提高其静态稳定性及局限性3.为什么高频保护要设置两个不同灵敏度的电流继电器？4.写出电流互感器的饱和判据5.为什么要采用比率制动特性6.以电流保护为例，说明后备保护为什么受系统运行方式影响？7.Eq'的在短路计算中的意义与作用,还要求用证明Eq'的表达式（用xad'、xf、定子漏电抗和pesai f0表示)8.小干扰分析法分析带阻尼时的系统静态稳定性9.暂稳计算,求出极限切除角，判断是否暂态稳定10.证明PE'=E'U/Xd'*sinδ‘，δ‘表达式11.写出两相运行、单相接地、两相接地的零序电流表达式12.电流保护的一二段整定13.距离纵联保护的工作原理（给出了图形)这个是完善版我考北京校区的电力系统二楼把笔试题说的很全了。

补充一下第12个，电流整定计算，图是继保课本（老版）第45页图2.36。

计算那个图保护2的一二段动作电流、动作时间，二段灵敏度。

我说一下面试吧，我报的是电网所，我们是先英语口试，再综合面试。

面试组有李老师，周老师，姜老师，其他的不认识。

进去以后英语口试部分作自我介绍问我电能质量有神马我是自动化专业的，问我学过神马电气方面的专业课问我我国交流电的频率是多少，别的国家是多少问我可再生能源都有哪些我的自我介绍里说过我是学生会的leader，问我在学生会工作有神马心得其他同学的问题：我国的交流频率为神马是50Hz，不是500Hz；HVDC在我国有哪些工程；HVDC的优势；等等接着是综合面试部分，我们是抽题，每张纸上5道题，我抽到的是：电力市场的作用和意义说出6中电力系统一次设备的名称隔离器和断路器有神马区别继电保护的种类在一个100层的高楼的电梯系统中，如何用计算机系统实现控制，有神马优化措施，时间、交通等因素对电梯系统有神马影响（这貌似不是电力系统的题吧）然后因为我是自动化跨考电力系统专业的，他们又问了我三大控制理论在电力系统中有神马应用，控制理论在电力系统稳定性分析中有神马应用我进去之前紧张的胃疼，想吐，但是进去以后就不紧张了，老师们都很和蔼，唯一让我郁闷的就是，他们不从外国语学院找人面试英语，让本专业老师面试，结果他们英语发音不太标准，我没听太懂…………我的面试问题有：1，断路器与隔离开关区别。

2011年电气工程师考试供配电专业真题试卷(下午)（考生版）试卷题量：40题试卷总分：40分试卷限时：90分钟测评/引用码：56uZMjn一、单项选择题回答1-5题，某一除尘风机拟采用变频调速，技术数据为：在额定风量时交流感应电动机计算功率P=900kW，电机综合效率ηMl00=0．92，变频器效率ηFl00=0．976。

50%额定风量工作时，电机效率ηM50=0．8，变频器效率，ηF50=0．92。

20%额定风量工作时ηM20=0．65，变频器效率ηF20=0．9。

工艺工作制度：年工作时间6000小时，额定风量下工作时间占40%，50%额定风量下工作时间占30%，20%额定工作量下占30%；忽略电网损失。

请回答下列问题，并列出解答过程：1、采用变频调速，在上述工艺工作制度下，该风机的年耗电量与下述哪项值相近?（ ）A、2645 500kW·hB、2702 900kW·hC、3066 600kW·h DD、4059 900kW·h2、若不采用变频器调速，风机风量Qi的改变采用控制风机出口挡板开度的方式，在上述工艺工作制度下，该风机的年耗电量与下列哪个数值最接近?(设风机扬程为Hi=1．4-0．4×Qi2，式中Qi和Hi均为标幺值。

提示：Pi=PQiHi／ηMi)（ ）A、3 979 800kW·hB、4 220 800kW·hC、4 353 900kW·hD、5 388 700kW·h3、若变频器调速设备的初始投资为84万元，假设采用变频器调速时的年耗电量是2 156 300kWh，不采用变频器调速时的年耗电量是3 473 900kW·h，若电价按0．7元／kWh计算，仅考虑电价因素时预计初始投资成本回收期约为多少个月?（ ）A、10个月B、11个月C、12个月D、13个月4、说明除变频调速方式外，下列风量控制方式中哪种节能效果好?（ ）A、风机出口挡板控制B、电机变极调速加风机出口挡板控制C、风机入口挡板控制D、电机变极调速加风机入口挡板控制5、说明下列哪一项是采用变频调速方案的缺点?（ ）A、调速范围B、起动特性C、节能效果D、初始投资回答6-10题，图示为一座ll0kV／35kV／10kV变电站，ll0kV和35kV采用敞开式配电装置，10kV采用户内配电装置，变压器三侧均采用架空套管出线。

2011年注册电气工程师（供配电）专业基础真题试卷及答案与解析一、单项选择题1 如图所示电路中，已知R1=10Ω，R2=2Ω，U S1=10V，U S2=6V，则电阻R2两端的电压U为( )。

（A）4V（B）2V（C）－4V（D）－2V2 如图所示电路中，测得U S1=10V，电流I=10A，则流过电阻R的电流I1为( )。

（A）3A（B）－3A（C）6A（D）－6 A3 如图所示电路中，已知U S=12V，R1=15Ω，R2=30Ω，R3=20Ω，R4=8Ω，R5=12Ω，电流I为( )。

（A）2A（B）1．5A（C）1A（D）0．81A4 如图所示电路中，已知U S=12V，I S1=2A，I S2=8A，R1=12Ω，R2=6Ω，R3=8Ω，R4=4Ω。

取节点3为参考点，节点1的电压U n1为( )。

（A）15V（B）21V（C）27V（D）33V5 如图所示电路中，电流I为( )。

（A）－2A（B）2A（C）－1A（D）1A6 如图所示电路中，电阻R的阻值可变，则R为下列哪项数值时可获得最大功率?( )（A）12Ω（B）15Ω（C）10Ω（D）6Ω7 如图所示电路中，RL串联电路为日光灯的电路模型。

将此电路接在50Hz的正弦交流电压源上，测得端电压为220V，电流为0．4A，功率为40W。

电路吸收的无功功率Q为( )。

（A）76．5var（B）78．4var（C）82．4var（D）85．4var8 在上题中，如果要求将功率因数提高到0．95，应给日光灯并联的电容C的值为( )。

（A）4．29μF（B）3．29μF（C）5．29μF（D）1．29μF9 如图所示正弦交流电路中，已知Z=10+j50Ω，Z1=400+j1000Ω。

当β为( )时，的相位差为90°。

（A）－41（B）41（C）－51（D）5110 如图所示正弦交流电路中，已知=100∠0°V，R=10Ω，X L=20Ω，X C=30Ω。

2011年电气工程师考试供配电专业真题试卷(上午)（考生版）试卷题量：25题试卷总分：25分试卷限时：90分钟测评/引用码：gCKhOuW一、单项选择题回答1-5题：某电力用户设有ll0／lOkV变电站一座和若干l0kV车间变电站，用户所处海拔高度1500m，其供电系统图和已知条件如下：(1)110kV线路电源侧短路容量为2000MVA。

(2)110kV电源线路电抗值为0．4Ω／km。

(3)110／10kV变电站lOkV母线短路容量200MVA。

(4)110／10kV变电站主变容量20MVA，短路电抗为8%，短路损耗90kW。

主变两侧额定电压分别为ll0、10．5kV。

(5)l10／lOkV变电站主变压器采用有载调压。

(6)车间A设有大容量谐波源，其7次谐波折算到l0kV侧为33A。

请通过计算分析回答下列问题，并列出解答过程：1、在最大负荷时，主变压器负载率为84%，负载功率因数0．92。

请问110／10kV变压器电压损失为下列哪项数值?（ ）A、2．97%B、3．03%C、5．64%D、6．32%2、计算车间A的7次谐波电流在110／10kV变电站10kV母线造成的7次谐波电压含有率为下列哪项数值?（ ）A、2．1B、2．0C、2．1%D、2．0%3、车间C电源线路为截面185mm2架空线路，在高峰负荷期间负荷约2000kW，功率因数为O．7左右(滞后)，车间C高压母线电压偏差变化范围为-2%～-7%。

为改善车间C用电设备供电质量和节省电耗，说明下列技术措施中哪项是最有效的?（ ）A、向车间C供电的电源线路改用大截面导线B、提高车间C的功率因数到0．95C、减少车间C电源线路的谐波电流D、加大110／10kV变电站lOkV母线短路容量4、计算该ll0／10kV变电站的llOkV供电线路长度大约为下列哪一项数值?（ ）A、149kmB、33kmC、17kmD、0．13km5、B车间lOkV室外配电装置裸带电部分与用工具才能打开的栅栏之间的最小电气安全净距为下列哪一项?（ ）A、875mmB、950mmC、952mmD、960mm回答6-10题：某车间工段的用电设备的额定参数及使用情况如下：请回答下列问题，并列出解答过程：(计算时取小数点后两位)6、采用需要系数法计算本工段起重机用电设备组的设备功率应为下列哪项数值?（ ）A、9kWB、30kWC、37．80kWD、75kW7、采用需要系数法简化计算本工段电加热器用电设备组的等效三相负荷应为下列哪项数值?（ ）A、20kWB、28．28kWC、34．60kWD、60kW8、假设经需要系数法计算得出起重机设备功率为33KW，电加热器等效三相负荷为40kW，考虑有功功率同时系数0．85、无功功率同时系数0．90后，本工段总用电设备组计算负荷的视在功率为下列哪项数值?（ ）A、127．63kVAB、110．78kVAC、95．47kVAD、93．96kVA9、假设本工段计算负荷105kVA，供电电压为220／380V时，本工段计算电流应为下列哪项数值?（ ）A、142．76AB、145．06AC、159．72AD、193．92A10、接至本工段电源进线点前的电缆线路为埋地敷设的电缆，根据本工段计算电流采用“gG”型熔体额定电流为200A的熔断器作为该电缆线路保护电器，并已知该电器在约定时间内的可靠动作电流为l．6倍的熔体额定电流。

一、选择 20题每题1分
考的很细。

线路参数、无功功率补偿、发电厂制定发电计划的依据、哪几种短路不产生零序电流、正序等效原则等。

二、填空 8题20空，每空1分
比较基础。

考了最大负荷利用小时数、电晕跟线路以及绝缘子串的参数关系、架空线路组成、调相机和电容作为无功补偿装置的作用等等。

三、简答题 4题每题5分
1、高压输电线路使用串联电容器后，用牛顿-拉夫逊潮流算法和PQ潮流算法合适吗？为什么？
2、输电线路末端电压一定低于始端？并解释。

3、两台并联变压器，撤掉一台后，能否起到调压作用？为什么？
4、什么是正序等效原则？单相接地短路和两相短路相当于串联了哪些？
下面是计算题
四、两台变压器并联，算每个变压器承担多少负载的。

可以看成环网问题，第一问两变压器变比一样。

第二问T1变比变了，涉及到循环功率。

五、推导等耗量微增率原则。

六、根据不同的功率因数要求，确定并联电容器的无功补偿容量。

七、4节点导纳矩阵。

节点3-4间是变压器。

共两问，第一问，变比是1:1，第二问，变比1:1.03，求这两种情况下的节点导纳阵。

八、算断路器的短路电流。

即三相短路电流。

九、不对称故障。

单相接地短路。

1、求输电线路三序短路电流 2、发电机送出的三相短路电流 3、变压器中性点电压。

华北电力大学824传热学2011年硕士研究生入学考试试题及答案历年试题精讲及答题技巧华北电力大学2011年硕士研究生入学考试初试试题以下为考试内容1、“相似”和“比拟”是传热学中常用的两种研究方法，试举例说明两种方法的异同。

答案： 相似原理指导下的实验研究仍然是解决复杂对流换热问题的可靠方法。

根据物理现象相似的定义和性质，可以得出物理现象相似必须满足3个条件：1) 同类现象2) 单值性条件相似3) 同名已定特征数相等。

两个常物性、不可压缩牛顿流体外掠等壁温平板的对流换热现象相似，努塞尔数Nu 、雷诺数Re 、普朗特数Pr 分别相等。

相似原理回答了进行对流换热实验研究所必须解决的3个主要问题：如何安排试验；怎样整理实验数据；实验结果的适用性。

比拟是指通过研究动量传递和热量传递的共性或类似特性，以建立起表面传热系数与阻力系数之间的关系的方法。

应用比拟法，可通过比较容易用实验测定的阻力系数来获得相应的表面传热系数运算公式。

2、简述韦恩位移定律，并以此分析为何炼钢时钢锭的颜色由暗红色变成白色。

如何利用韦恩位移定律测量物体的温度。

答案：韦恩位移定律K m K m T ⋅⨯≈⋅⨯=--33m 109.2108976.2λ，此式表达的波长m λ与温度T 成反比的规律。

T m λ为固定的值，当钢锭的温度越来越高时，m λ就越来越低，此时钢锭的颜色有暗红色变成白色，当测量温度是，可以测量钢锭发出的光的波长利用韦恩位移定律求解出。

3、试判断，以上逆流换热过程中两流体温度沿程变化的画法是否正确？为什么？（图中纵坐标代表温度，横坐标代表流程）答案：设换热器一侧流体的热容量为p m c q ，在该侧流体的进口和出口处分别取微元面积1dA ，2dA ，并令dA dA dA ==21。

由传热方程式知：大温差与小温差侧流体间的换热量分别为：max 1t kdA d ∆=Φ，min 2t kdA d ∆=Φ，显然21Φ>Φd d由热平衡知：11t p m d c q d =Φ，22t p m d c q d =Φ，进而知21dt dt >，因1dt 、2dt 分别为该侧流体进出口相同面积上得温度变化，故可知该流体大温差侧的温度变化率应大于小温差侧的温度变化率，即温度曲线上，大温差侧的温度变化率应大于小温差侧的温度变化率，即温度曲线上，大温差侧的斜率应大于小温差侧。

2011年电气工程师<(发输变电)专业基础>真题第1题(单项选择题)图示电路中，已知R1=10Ω，R2=2Ω，US1=10V，US2=6V.电阻R2两端的电压U为( ).A.4VB.2VC.-4VD.-2V正确答案:C，第2题(单项选择题)图示电路中，测得US1=10V，电流I=10A.流过电阻R的电流I1为( ).A.3AB.-3AC.6AD.-6A正确答案:B，第3题(单项选择题)图示正弦交流电路中，已知Z=10+J50Ω，Z1=400+J1000Ω，当β为下列哪项数值时，和的相位差为90°( )A.-41B.41C.-51D.51正确答案:A，第4题(单项选择题)图示正弦交流电路中，已知V，R=10Ω，XL=20Ω，XC=30Ω，当负载ZL为下列哪项数值时，它将获得最大功率( )A.8+J21ΩB.8-J21ΩC.8+J26ΩD.8-J26Ω正确答案:C，第5题(单项选择题)图示电路中，已知US=6V，R1=1Ω，R2=2Ω，R3=4Ω，开关闭合前电路处于稳态，T=0时开关S闭合.T=0+时，UC(0+)为( ).A.-6VB.6VC.-4VD.4V正确答案:D，第6题(单项选择题)图示电路中，开关S闭合前电路已处于稳态，在T=0时开关S闭合，开关闭合后的UC(T)为( ).正确答案:B，第7题(单项选择题)图示含耦合电感电路中，已知L1=0.1H，L2=0.4H，M=0.12H，AB端的等效电感LAB为( ).A.0.064HB.0.062HC.0.64HD.0.62H正确答案:A，第8题(单项选择题)设Y=0平面是两种介质的分界面，在Y＞0区域内，ε1=5ε0;在Y＜0区域内，ε2=3ε0，在此分界面上无自由电荷.已知E1=(10EX+12EY)V/M，则E2为( ).A.(10EX+20EY)V/MB.(20EX+10EY)V/MC.(10EX-20EY)V/MD.(20EX-100EY)V/M正确答案:A，第9题(单项选择题)要获得32K*8的RAM，需要4K*4的RAM的片数为( ).A.8个B.16个C.32个D.64个正确答案:B，第10题(单项选择题)一台SN=5600KVA，U1N/U2N=6000/4000V，Y/Δ联接的三相变压器，其空载损耗P0=18KW，短路损耗PKN=56KW，当负载的功率因数COSφ2=0.8(滞后)，保持不变，变压器的效率达到最大值时，变压器一次边输入电流为( ).A.305.53AB.529.2AC.538.86AD.933.33A正确答案:A，第11题(单项选择题)一台三相感应电动机PN=1000KW，电源频率F 为50HZ，额定电压UN=6KV，接法，功率因数COSφ=0.75，效率ηN=0.92，绕组系数KW1=0.945，定子绕组每相串联匝数N1=92，已知电机的励磁电流IM=45%IN，求其三相基波旋转磁势幅值为( ).A.4803.3安匝B.9607.6安匝C.21346.7安匝D.16367.8安匝正确答案:D，第12题(单项选择题)绕线式异步电动机拖动恒转矩负载运行，当转子回路串入不同电阻，电动机转速不同，而串入电阻与未串入电阻相比，对转子的电流和功率因数的影响是( ).A.转子电流大小和功率因数均不变B.转子电流大小变化、功率因数不变C.转子电流大小不变、功率因数变化D.转子电流大小和功率因数均变化正确答案:A，第13题(单项选择题)由三台相同的单相变压器组成的YNY0联接的三相变压器，相电势的波形是( ).A.正弦波B.方波C.平顶波D.尖顶波正确答案:D，第14题(单项选择题)我国电力系统中性点直接接地方式一般在下列哪个电压等级的电网中使用( )A.10KV及以上B.35KV及以上C.110KV及以上D.220KV及以上正确答案:C，第15题(单项选择题)电力系统接线如图所示，各级电网的额定电压示于图中，发电机、变压器T1、T2的额定电压分别为( ).A.G:10.5KV，T1:10.5/242KV，T2:220/38.5KVB.G:10KV，T1:10/242KV，T2:242/35KVC.G:10.5KV，T1:10.5/220KV，T2:220/38.5KVD.G:10.5KV，T1:10.5/242KV，T2:220/35KV正确答案:A，第16题(单项选择题)长距离输电线路，末端加装电抗器的目的是( ).A.吸收容性无功功率，升高末端电压B.吸收感性无功功率，降低末端电压C.吸收容性无功功率，降低末端电压D.吸收感性无功功率，升高末端电压正确答案:C，第17题(单项选择题)有一线路和变压器组成的简单电力系统归算到高压侧的等值电路如图所示，线路及变压器的参数标在图中，当C点实际电压为110∠0°KV，线路末端并联支路功率及输入变压器的功率分别为:(不考虑电压降落横分量)( ).A.-J2.688MVA，20.22+J17.65B.-J3.688MVA，23.15+J19.32C.-J2.688MVA，23.15+J19.32D.-J3.688MVA，20.22+J17.65正确答案:D，第18题(单项选择题)3~20KV电网中，为了测量对地电压，通常采用下列哪种电压互感器( )A.三相三柱式B.三相五柱式C.三台单相式D.两台单相式正确答案:B，第19题(单项选择题)为使断路器弧熄电压恢复过程为非周期性的，可在断路器触头两端( ).A.并联电容B.并联电抗C.并联电阻D.辅助触头正确答案:C，第20题(单项选择题)在棒-板电极形成的极不均匀电场中，在棒电极的极性不同的情况下，起始电晕电压和放电电压的特性为( ).A.负极性、高、高B.正极性、高、低C.负极性、高、低D.正极性、高、高正确答案:B，第21题(单项选择题)提高悬式绝缘子耐污性能的方法是下列哪一项( )A.改善绝缘子电位分布B.涂憎水性涂料C.增加绝缘子爬距D.增加绝缘子片数正确答案:B，第22题(单项选择题)雷电冲击电压波在线路中传播时，为何会出现折射现象( )A.线路阻抗大B.线路阻抗小C.线路有节点D.线路有雷电感应电压波正确答案:C，第23题(单项选择题)一幅值为U=1200KV的直角雷电波击中波阻抗为250Ω、150KM长的无损空载输电线路的首端，波传播到线路末端时，末端电压为( ).A.1200KVB.2400KVC.1600KVD.1800KV正确答案:B，第24题(单项选择题)图示电路中，已知US=12V，R1=15Ω，R2=30Ω，R3=20Ω，R4=8Ω，R5=12Ω，电流I为( ).A.2AB.1.5AC.0.8AD.0.5A正确答案:C，第25题(单项选择题)图示电路中，已知US=12V，IS1=2A，IS2=8A，R1=12Ω，R2=6Ω，R3=8Ω，R4=4Ω.取结点③为参考结点，结点①的电压UN1为( ).A.15VB.21VC.27VD.33V正确答案:A，第26题(单项选择题)图示电路中，电流I为( ).A.-2AB.2AC.-1AD.1A正确答案:D，第27题(单项选择题)图示电路中的电阻R阻值可变，R为下列哪项数值时可获得最大功率( )A.12ΩB.15ΩC.10ΩD.6Ω正确答案:D，第28题(单项选择题)图示电路中的R、L串联电路为日光灯的电路模型.将此电路接于50HZ的正弦交流电压源上，测得端电压为220V，电流为0.4A，功率为40W.电路吸收的无功功率Q为( ).A.76.5VARB.78.4VARC.82.4VARD.85.4VAR正确答案:B，第29题(单项选择题)在题7中，如果要求将功率因数提高到0.95，应给日光灯并联的电容C为( ).A.4.29μFB.3.29μFC.5.29μFD.1.29μF正确答案:A，第30题(单项选择题)在RC串联电路中，已知外加电压:U(T)=20+90SIN(ωT)+30SIN(3ωT+50°)+10SIN(5ωT+10°)V，电路中电流:I(T)=1.5+1.3SIN(ωT+85.3°)+6SIN(3ωT+45°)+2.5SIN(5ωT-60 .8°)A，则电路的平均功率P为( ).A.124.12WB.128.56WC.145.28WD.134.28W正确答案:B，第31题(单项选择题)图示RLC串联电路中，已知R=10Ω，L=0.05H，C=50μF，电源电压为:U(T)=20+90SIN(ωT)+30SIN(3ωT+45°)V，电源的基波角频率ω=314RAD/S，电路中的电流I(T)为( ).正确答案:B，第32题(单项选择题)图示电路中，已知R1=3Ω，R2=R3=2Ω，US=10V，开关S闭合前电路处于稳态，T=0时开关闭合，T=0+时，IL1(0+)为( ).A.2AB.-2AC.2.5AD.-2.5A正确答案:A，第33题(单项选择题)图示电路中，换路前已处于稳定状态，在T=0时开关S打开，开关S打开后的电流I(T)为( ).A.3-E^20TAB.3-E^-20TAC.3+E^-20TAD.3+E^20TA正确答案:C，第34题(单项选择题)图示电路中，N为下列哪项数值时，R=4Ω电阻可以获得最大功率( )A.2B.7C.3D.5正确答案:D，第35题(单项选择题)图示对称三相电路中，已知线电压U1=380V，负载阻抗Z1=-J12Ω，Z2=3+J4Ω，三相负载吸收的全部平均功率P为( ).A.17.424KWB.13.068KWC.5.808KWD.7.42KW正确答案:A，第36题(单项选择题)图示电路中，已知L1=0.12H，ω=314RAD/S，U1(T)=U1MCOS(ωT)+U3MCOS(3ωT)，U2(T)=U1MCOS(ωT)，C2和C2的数值分别为下列哪种数值( )A.7.39μF和71.14μFB.71.14μF和7.39μFC.9.39μF和75.14μFD.75.14μF和9.39μF正确答案:C，第37题(单项选择题)图示电路中，换路前已达稳态，在T=0时开关S打开，欲使电路产生临界阻尼响应，R应取下列哪项数值(精确到小数点后二位)( ).A.3.16ΩB.6.33ΩC.12.66ΩD.20Ω正确答案:B，第38题(单项选择题)在RCL串联谐振电路中，R=10Ω，L=20MH，C=200PF，电源电压U=10V，电路的品质因数Q为( ).A.3B.10C.100D.1000正确答案:D，第39题(单项选择题)真空中有一线密度τ沿Z轴均匀分布的无限长线电荷，P点距离Z轴垂直距离为ρ，则距离导线τ处一点P的电场强度E为( ).A.τ/(4πε0ρ)V/MB.τ/(2πε0ρ)V/MC.τ/(4πε0ρ2)V/MD.τ/(2πε0ρ2)V/M正确答案:B，第40题(单项选择题)真空中相距为A的两无限大平板，电荷面密度分别为+δ和-δ，这两个带电面之间的电压U为( ).A.δA/(2ε0)VB.δA/ε0VC.δA/(3ε0)VD.δA/(4ε0)V正确答案:B，第41题(单项选择题)在恒定电场中，若两种不同的媒质分界面为XOZ平面，其上有电流线密度K=2EXA/M，已知H1=(EX+2EY+3EZ)A/M，μ1=μ0，μ2=2μ0，则H2为( ).A.(3EX+2EY+EZ)A/MB.(3EX+EY+3EZ)A/MC.(3EX+EY+EZ)A/MD.(EX+EY+3EZ)A/M正确答案:B，第42题(单项选择题)一条长度为λ/4的无损耗传输线，特性阻抗为Z0，终端接负载ZL=RL+JXL，其输入阻抗相当于一电阻RI与电容XI 并联，其数值为( ).A.RLZ0和XLZ0B.Z20/XL和Z20/RLC.Z20/RL和Z20/XLD.RLZ20和XLZ20正确答案:C，第43题(单项选择题)图示电路中，A为理想运算放大器，三端集成稳压器的2、3端之间的电压用UREF表示，则电路的输出电压可表示为( ).A.U0=(U1+UREF)R2/R1B.U0=U1+R2/R1C.U0=UREF(1+R2/R1)D.U0=UREF(1+R1/R2)第44题(单项选择题)74LS161的功能如表所示，图示电路的分频比(即Y与CP的频率之比)为( ).A.1:63B.1:60C.1:96D.1:256正确答案:A，第45题(单项选择题)一台并网运行的三相同步发电机，运行时输出COSφ=0.5(滞后)的额定电流，现在要让它输出COSφ=0.8(滞后)的额定电流，可采取的办法是( ).A.输入的有功功率不变，增大励磁电流B.增大输入的有功功率，减小励磁电流C.增大输入的有功功率，增大励磁电流D.减小输入的有功功率，增大励磁电流第46题(单项选择题)一台隐极式同步发电机，忽略电枢电阻，同步电抗的标幺值XS*=1.0，端电压U保持额定值不变，当负载电流为额定值且功率因数为1，功率角δ为( ).A.0°B.36.87°C.45°D.90°正确答案:C，第47题(单项选择题)每相同步电抗XS=1的三相隐极式同步发电机单机运行，供给每相阻抗标幺值为ZL=(8-J6)的三相对称负载，其电枢反应的性质为( ).A.纯交轴电枢反应B.直轴去磁兼交轴电枢反应C.直轴加磁兼交轴电枢反应D.纯直轴去磁电枢反应正确答案:C，第48题(单项选择题)设有两台三相变压器并联运行，额定电压均为6300/400V，联结组相同，其中A变压器额定容量为500KVA，阻抗电压UKA=0.0568;B变压器额定容量为1000KVA，阻抗电压UKB=0.0532，在不使任何一台变压器过载的情况下，两台变压器并联运行所能供给的最大负荷为( ).A.1200KVAB.1468.31KVAC.1500KVAD.1567.67KVA正确答案:B，第49题(单项选择题)三相鼠笼式电动机，PN=10KW，UN=380V，NN=1455R/MIN，定子Δ接法，等效电路参数如下:R1=1.375Ω，R2′=1.04711，X1σ=2.43Ω，X2σ′=4.4Ω，则最大电磁转矩的转速为( ).A.1455R/MINB.1275R/MINC.1260R/MIND.1250R/MIN正确答案:B，第50题(单项选择题)电力系统的主要元件有( ).A.发电厂、变电所、电容器、变压器B.发电厂、变电所、输电线路、负荷C.发电厂、变压器、输电线路、负荷D.发电厂、变压器、电容器、输电线路正确答案:B，第51题(单项选择题)电力系统电压降落计算公式为( ).正确答案:D，第52题(单项选择题)三相感应电动机定子绕组，Δ接法，接在三相对称交流电源上，如果有一相断线，在气隙中产生的基波合成磁势为( ).A.不能产生磁势B.圆形旋转磁势C.椭圆形旋转磁势D.脉振磁势正确答案:C，第53题(单项选择题)简单系统如图所示，输电端母线A电压保持116KV，变压器低压母线C要求恒调压，电压保持10.5KV，满足以上要求时接在母线上的电容器容量Q为( ).A.8.76MVARB.8.44MVARC.9.76MVARD.9.69MVAR正确答案:B，第54题(单项选择题)同步补偿机实际是特殊状态下的同步电动机，特殊状态是( ).A.满载运行B.空载运行C.短路堵转运行D.半载运行正确答案:B，第55题(单项选择题)系统发生三相短路后，其短路点冲击电流和最大有效值电流计算公式为( ).正确答案:A，第56题(单项选择题)已知某电力系统如图所示，各线路电抗约为0.4Ω/KM，长度标在图中，取SB=250MVA，如果厂处发生三相短路时，其短路电流周期分量起始值及冲击电流分别为( ).A.0.29，2.395B.2.7，6.82C.0.21，2.395D.2.1，6.82正确答案:B，第57题(单项选择题)系统如图所示，系统中各元件在统一基准功率下的标幺值阻抗:G:X″D=X(2)=0.03，X(0)=0.15，E=1.12;T:XT=0.06，Y/Δ—11接法，中性点接地阻抗XP=0.04/3，当图示F点发生A相接地短路时，短路处A相短路电流和电路点处系统的等值零序电抗分别为( ).A.12，0.1B.4，0.1C.0.09，4D.12，0.04正确答案:A，第58题(单项选择题)下列哪种主接线在出线断路器检修时，会暂时中断该回路的供电( )A.三分之四B.双母线分段C.二分之三D.双母线分段带旁路正确答案:B，第59题(单项选择题)电流互感器的容量为( ).A.正常发热允许的容量B.短路发热允许的容量C.额定二次负载下的容量D.额定二次电流下的容量正确答案:C，第60题(单项选择题)断路器开断中性点不直接接地系统中的三相短路电流，首先开断相后的工频恢复电压为(UPH为相电压)( ).A.UPHB.0.866UPHC.1.5UPHD.1.3UPH正确答案:C，。

2011年华北电力大学研究生入学考试系统分析基础二判断题（20分）1.目前我国电力系统中还没有大规模的电能储能元件2.相同截面架空线路的电抗远远大于电缆线路的电纳3.输电线路的对地参数是感性的4.采用分裂导线的作用是为了减小电抗5.架空线输电线路采用完全换位的目的是减少电抗6.电力线路的阻抗是A、B、C三相并联后的等值阻抗7.负荷曲线上的“峰谷差”越大越好8.变压器的励磁支路是感性的9.电压损耗在数值上等于电压降落的模值10.线路末端的电压永远不会高于始端11.潮流计算的功率是指单相线路的功率12.网络有功损耗最小的功率分布取决于支路阻抗13.当单位长度参数一样时，环网功率的分布取决于换网线路的长度14.环网中的有功分点和无功分点是重合的15.当两个节点间无支路直接相连时，互导纳为016.P-Q分解法比牛顿-拉夫逊法计算速度快的原因是迭代次数少17.P-Q分解法修正方程式中的洗漱矩阵可直接由节点导纳矩阵虚部组成18.在潮流调整控制手段中，改变电压的幅值主要影响网络中无功功率的分布，改变电压的相位，主要影响的是有功功率分布19.发电机的调差系数大，它的调节特性越好20.频率的二次调整依靠调频器完成，可以实现无差调节填空题（20分）21.电力系统中性点运行方式主要有（）22.考核电力系统经济型的主要指标（）23.我国目前运行的电力系统交流和直流的最高电压等级分别是（）24.电力变压器的参数是通过哪两个实验测得（）25.变压器的不变损耗是指（）26.电力线路的4个参数中，产生有功损耗的有（）27.电力线路具有对地导纳参数的原因（）28.潮流计算中的节点类型主要有（）29.PQ分解法修正方程式简化的两个条件（）30.电气系统的有功备用容量包括（）。

姓名学号班级口语班华北电力大学研究生课程考试试题（2011-12-24 ）GENERAL ENGLISH QUALIFYING TESTFOR NON-ENGLISH MAJOR GRADUATE STUDENTS监考及考试注意事项：1）考试时间：8：30---10：402）请学生不要在课桌内及身上携带任何书、本、纸片、电子文具、字典、手机，一经发现，即视为作弊。

书包，大衣请放到教室统一位置。

3）听力考试播音时间：9：004）学生按英语口语班坐位，收卷按英语口语班收卷。

机读卡左上角请注明英语口语班级。

5）调频台频率为FM 86.56）收卷时分别按试卷，答题纸，机读卡，收齐后机读卡分别用纸包好写上英语口语班级和份数，送交主楼C 705。

请口语老师把自己班的试卷拿走，批改听力Section C部分。

7）考生在答题卡的学生代号栏中填上完整的学生证号，且左对齐，剩余空格不填。

试卷，答题纸，机读卡均需写明姓名、学号、口语班号。

8）祝大家圣诞节快乐！PAPER ONEPART I LISTENING COMPREHENSION (22.5 points)Section A ( 1 point each)Directions: In this section, you will hear nine short conversations between two speakers. At the end of each conversation a question will be asked about what was said. Theconversations and the questions will be read ONL Y ONCE. Choose the best answerfrom the four choices given by marking the corresponding letter with a single bar acrossthe square brackets on your machine-scoring Answer Sheet.1. A. He'll get promoted. C. He'll be disappointed.B. He'll get another job. D. He'll give a talk.2. A.$3.78. C. $3.87.B. $4.25. D. $4.15.3. A. It was just so-so. C. It was quite good.B. It was really special. D. It was awful.4. A. The woman should divorce her husband.B. The woman is thinking negatively.C. The woman is ignoring her husband.D. The woman is not imaginative.5. A. It seems too hard to most students.B. It is the most boring class.C. What is taught comes directly from the book.D. It is quite popular among students.6. A. Jennifer was a real stand-out.B. Jennifer had an impractical wish.C. Jennifer used to like eating pies.D. Jennifer realized her dreams.7. A. It's hard to explain. C. He cherishes their friendship.B. It's an unforgettable history. D. He is pretty busy.8. A. He is a gardener. C. He is a plumber.B. He is an electrician. D. He is a cleaner.9. A. Visit his doctor. C. Leave for a trip.B. Get a massage. D. Cancel an appointment.Section B (1 point each)Directions: In this section you will hear two mini-talks. At the end of each talk, there will be some questions. Both the talks and the questions will be read to you only once. After eachquestion, there will be a pause. During the pause, you must choose the best answerfrom the four choices given by marking the corresponding letter with a single baracross the square brackets on your machine-scoring Answer Sheet.Mini-talk One10. A. Columbia University. C. The University of Pennsylvania.B. Princeton University. D. Cornell University.11. A. It is settled. B. It is not controversial.C. It is uncertain.D. It has never been studied.12. A. 2%. C. 12%.B. 7% D. 17%.Mini-talk Two13. A. John Fitzgerald Kennedy. C. Dwight Eisenhower.B. Jacqueline Kennedy. D. Edward Durrell Stone14. A. Opera House. C. Family Theater.B. The Concert Hall. D. States Gallery.15. A. The performing arts. C. Methods of competition.B. Creation of new works. D. The history of western music.Section C (7.5 points, 1.5 point each)Directions: In this section you will hear a conversation. Listen to it and complete the notes about the conversation. ( You will hear the recording twice.) (16—20题写在卷子上)16. My mom is one of millions of ________ ___________ (2 words) -------women whose husbands watch the games from __________ (1 word) until New Year’s Day and pay no attention to their wives and children.17. They're expected to be _______ ___________ (2 words) 'cause kids look to them as ________. (1 word)18. They earn millions ______ ________ (2 words) and by endorsing ___________ (1 word)19. Communities take ________ ___________ (2 words) in their teams, and it’s fun go to the ____________ (1 word)20. Colleges also________ _________ __________ __________ (4 words)from TV companies that broadcast the games.PART II VOCABULARY ( 5 points, 0.5point each)Directions: There are ten questions in this section. Each question is a sentence with something missing. Below each sentence are four words or phrases marked A, B, C and D.Choose one word or phrase that best completes the sentence. Mark the correspondingletter with a single bar across the square brackets on your machine-scoring AnswerSheet.21. Dayton Robles was on Monday sensationally __________ his world 110m hurdles title forobstruction of Liu Xiang.A. warded offB. stripped offC. called offD. paid off22. Since childhood, Crews had been _________ by health problems - fatigue, fever and troublebreathing.A. facilitatedB. consoledC. plaguedD. infected23. Grace urged students to stand by their beliefs and principles, and __________ themselves.A. believe inB. persist inC. consist inD. specialize in24. The Mexican settlers built cities and mansions in what _________ become California.A. used toB. had toC. ought toD. was to25. The President cancelled a foreign trip __________ growing concerns of a domestic crisis.A. forB. viaC. versusD. amid26. Healthy communication is essential for _______ through difficulties for a married couple.A. invadingB. navigatingC. composingD. contradicting27. With better drugs and medical facilities, ________ rates in hospitals have declined sharply.A. mortalityB. moralityC. modestyD. mobility28. A world-renowned scientist is scheduled to give a _________ on the future of biology.A. projectionB. prevalenceC. proficiencyD. presentation29. During the Gold Rush, many were gripped by an _________ desire for wealth and migrated tothe West.A. allocatingB. evaporatingC. overwhelmingD. illuminating30. Russia is ________ the largest country in the world, covering more than a ninth of the Earth'sland area.A. far fromB. by farC. at firstD. other thanPART III READING COMPREHENSIONSection A (20 points, 1 point each)Directions: In this part of the test, there are four short passages. Read each passage carefully, and then do the questions that follow. Choose the best answer from the four choices given and mark the corresponding letter with a single bar across the square brackets on your machine-scoring Answer Sheet.Passage OneIt happens to every college student. Every professor on campus assigns a paper the same week. V olunteer work and social activities fill the calendar. Before long, an assignment is due in the morning, so what else is there to do? Brew a pot of coffee and begin another of that most storied of college traditions: the all-nighter.Many college students have found themselves in this position. Although studying late intothe early hours is a pretty well-accepted part of college life, the scientific consensus is clear—insufficient sleep is bad for a student's performance, happiness and health.Sleep is one of the body's most vital processes, affecting everything from muscle strength to memory span. Sleep increases blood flow to muscles and repairs damaged cells. A recent study indicates that college basketball players perform better on the court if they sleep at least ten hours the night before. Sleep consolidates memories and prepares the brain to perform--students who get more sleep can improve recall ability and actually do better on tests.How much sleep a person needs varies, but Dr. William DeMent from Stanford University says college students need over eight hours per night. With assignments piling up, many students end up constantly sleep deprived. Students accumulate a "sleep debt" that can get larger over time and can only be "paid off' by getting the amount of sleep the body needs. Naturally, a person's body would force them to get enough sleep by making them feel sleepy. But caffeine, stimulants, pressing deadlines encourage students to ignore the body's natural signals and go without sleep far longer than they should.It's easy to get caught up in the excitement and stress of college life and to get in the habit of getting to bed later and later. But pushing bodies and schedules to their limits does not come without cost. In the short-term, sleep deprivation affects mood, mental ability and physical performance. It decreases reaction time and makes a person more easily distracted. That's bad for test taking, and even worse for students who are driving. In the long-term, not getting enough sleep can sacrifice your health and shorten your life span by causing irritability, frustration and proneness to mistakes, associated with high blood pressure, obesity and heart failure. There are more than enough reasons to hit the sack early tonight!31. The expression "all-nighter" in the first paragraph refers to those students who -------A. sleep soundly the whole nightB. stay up all night studyingC. spend the night drinking coffeeD. don't come back for the night32. It can be concluded from this passage that -------A. sleep is of great importance to college studentsB. most college students refuse to go to bed earlyC. college students go to bed late only occasionallyD. most colleges force students to work at night33. The harm that insufficient sleep does to test-takers is that --------A. they feel sleepy during the testB. they forget what is learnedC. they become lazy thinkersD. they are left inattentive34. This passage implies that sleep deprivation is ---------- among college students.A. rareB. commonplaceC. negligibleD. justified35. The underlined words in the last paragraph probably meanA. get down to workB. see a doctorC. take some medicineD. go to bedPassage TwoAt the beginning of a country's rise out of backwardness and poverty, more wealth does make a difference. However, citing surveys from China and South Korea, the economist RichardEasterlin points out: "In these countries, per capita income has doubled in 20 years but overall happiness does not seem to have followed the same path." Economists are surprised, because GNP has long been thought the best indicator of human welfare. More GNP generally means more money for most people, and more money improves the quality of life, and that means happiness.But, perhaps, the survey suggests that more money can make you happy only if those around you do not share in your good fortune. General prosperity may fail to enhance individual contentment. Perhaps it is a matter of being aware of your advantage, not that you need to get the highest salaries or be the object of envy. Maybe, individual goals vary too much to be generalized. Maybe one has nothing at all to do with the other. Freud was well aware that economic success did not make people happy. Most psychoanalysts and therapists today would agree. He thought only the realization of a deep childhood desire could provide such satisfaction.Another problem is that people are poor reporters of their own states of mind. They will usually tell you what they themselves want to believe. To know if someone is really happy or not, you have to catch him or her in the act of happiness. Being happy or acting happy are more reliable indicators than thinking too much about it.Professional therapists also know that what makes people happy defies explanation, but what prevents them from being happy doesn't. Poor self-esteem undermines all feelings of success. Hunger and cold make it harder to relax and enjoy one's experience. Insecurity and failure to engage one's work leave one dissatisfied. Anxiety penetrates all our perceptions and feelings, and brings us down.Economists can probably hope to measure how well our basic needs for security and health are met in society, and if those are reasonably OK, people tend to find the happiness they seek. Most of us want to enjoy life, spend time with our children, play at sports, sing, dance and travel. If we can do those things without dread, the amount of money we have is irrelevant.36. It seems to Richard Easterlin that higher GNP-----A. will certainly make people happierB. depends on the overall level of happinessC. does not necessarily add to people's happinessD. is a good indicator of human happiness37. According to the second paragraph, individual happiness arises from ------A. setting a high goalB. the respect fi'om your neighborsC. common prosperityD. your superiority over others38. Freud's doctrine is mentioned to show that -------A. goals vary from person to personB. a happy childhood means life-long happinessC. psychoanalysts and therapists think alikeD. wealth does not always make one happy39. It can be inferred from the passage that ---------A. our feelings of happiness tend to be the sameB. there are few people who are really happyC. people sometimes don't know exactly how they feelD. thinking about happiness can make you feel happy40. Professional therapists believe that --------A. it is easy to explain what makes people happyB. it is easy to tell what leaves people unhappyC. it is difficult to tell who is happyD. it is hard to distinguish happiness from unhappinessPassage ThreeIt may sound like something out of a science fiction plot, but Oxford researchers say that modern conventional medicine is gradually developing ways to change the moral states of humans through pharmaceutical drugs, and thus control the way people think and act in various life situations. These new drugs will literally have the ability to disrupt an individual's personal morality, and instead reprogram that person to believe and do whatever the drug designer has created that drug to do."Science has ignored the question of moral improvement so far, but it is now becoming a big debate," said Dr. Guy Kahane fi'om the Oxford Centre for Neuroethics in the UK. "There is already a growing body of research you can describe in these terms. Studies show that certain drugs affect the ways people respond to moral dilemmas by increasing their ability to share in another's feelings, group affiliation and by reducing aggression."While this may sound good in theory, mind control is already a very dangerous side effect of existing drugs. Take the antidepressant drug Prozac, for instance, which has been known to cause those taking it to lash out in violent rages. One young boy murdered his father by beating him and stabbing him in the head, and hit his mother with a crowbar and stabbed her in the face, shortly after starting to take Prozac.But the kinds of drugs Kahane and his colleagues are referring to imply designer drugs specifically designed to not only alter one's mental state, but also to change the way that person thinks about situations from a moral perspective. The end result is literally a type of drug-induced mind control where human subjects will be controlled by someone else, and unable to make conscious decisions .for themselves.Research on the subject, of course, tries to paint the idea of mind-control drugs in a positive light, suggesting that they could be used to help make the world a better place. Just imagine less violence, more trust, and more love, they say. This way of using words persuasively, though, is really just a tactic to further numb the already mind-numbed masses into accepting the idea as a good thing.41. The underlined part of the first sentence of the passage implies that --------A. developing drugs to change human morality sounds unbelievableB. modern conventional medicine can bring miracles to healthC. it is impossible to control human behavior through drugsD. Oxford researchers are writing sci-fiction about new drugs42. Guy Kahane believes that certain drugs can ---------A. induce crime among drug-takersB. cause death if taken at a high doseC. bring about moral improvementD. make some patients feel lonely43. The drug Prozac is mentioned as evidence that --------A. it is an effective drug for depressionB. some drugs can cause violent behaviorC. most drugs can make depression worseD. antidepressant drugs produce the desired effect44. The biggest side effect of designer drugs is that the users --------A. can become increasingly immoralB. can feel too upset to live a normal lifeC. can no longer make any decisionsD. can no longer control their own minds45. The author's attitude towards development of such drugs is -------A. supportiveB. indifferentC. negativeD. uncertain（46题不涂）Passage FourAmerica has been a land of naming freedom and self-expression. While other governments impose restrictions------German parents have to choose a name that clearly indicates the gender of the child and is not a surname, and the French, among others, forbid names that might expose a child to mockery-----in the United States, anything goes.When Lum and Chin Nguyen had their first child, 26 years ago, they wanted to give him an American name. Newly settled in North Carolina, they chose Duke, in honor of nearby Duke University. Best of all, the name could work in both their old and new cultures by spinning its spelling to Due. or Duck, as the boy's teachers insisted on pronouncing it, to the great amusement of his classmates. With his pride injured, Duc Nguyen decided to reinvent himself and his name. His new choice was tried-and-true American and impossible to screw up: Wes."Your name is a way of marketing yourself," says Wes Nguyen, who turned his personal adventures in naming into a career as a corporate product namer. "When we create a new name for clients, we create imagery behind it, and I did that when I chose my own new name. Wes reminds me of the West Coast, of someone young and sophisticated and innovative. I think of a surfer, of someone who has work-life balance."The search for a name that screams "I'm unique!" leads some parents to invent names or play with traditional spelling. However, a downside of a "creative" name is that it may come with baggage, not all of it positive. "I always felt I was prejudged by my name," says Gestin Skaggs, 43, whose parents named her for a word they heard in a German love song. "I've either had to overcome some stereotype of a short, fat German man or live up to an expectation that I'm a really wild and creative thinker. People ascribe all kinds of personality traits to me that I don't have."But that's a small price to pay, say the teens with offbeat names we spoke with. "I've met a lot of people because of my name. They hear it and think it's cool," says Calypso Gibaldi, 15, named by her ocean-loving father for Jacques Cousteau's boat. "If my name was Jane, I'd be average like everyone else." （请注意以下5题按题号涂在机读卡上）57. By "anything goes" (Para. 1), the author means that in the U.S.A. baby naming tends to go with the trendB. parents can name their babies whatever they likeC. naming a baby should follow certain rulesD. a baby's name carries a special meaning58. According to Paragraph 2, the name DucA. was a good name connecting the two culturesB. was just a common English nameC. caused misunderstanding among studentsD. brought hurt feelings and bad memories59. Wes Nguyen chose this nameA. because he lives in the West CoastB. as a way of remembering his pastC. to promote his company productD. for the image that it reflects60. It can be seen from Gestin Skaggs' experience thatA. people tend to associate names with personal charactersB. names should be meaningful and easy to rememberC. a creative name tends to give a baby a good startD. people in general like unique names61. What does Calypso Gibaldi think of her name?A. It plays a positive role in her life.B. It has caused unexpected problems.C. She’s not sure of the role her name plays.D. She’d rather have a more common name.Section B (5 points, 0.5 point each)Directions: In this section, there is a passage with ten blanks. You are required to select one term for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on your machine-scoring Answer Sheet with a single line through the centre. You may not use any of the terms in the bank more than once.Crude-oil prices have been careening like steel balls in a ----47-- this autumn in response to news and rumors from the Middle East．In the first few days of October, the threat of armed conflict between Iran and Iraq sent crude prices ---48--- from $ 20 a barrel to almost $ 23,before sinking back down again．Even as the world is reminded of the ---49--- of its oil supply，consumption is soaring．Americans have fallen in love with gas ---50----- such as the Ford Expedition．In newly prosperous developing countries, ordinary people can afford cars for the first time．A recent survey in the China Youth Daily found that 75％of Beijing families planned to buy a car within the next five years．Yikes．Are we –51---- another oil crisis? You might think so．Fort Worth investor Richard E．Rainwater has 30％of his $ 1.5 billion net worth sunk in oil and gas investments because he expects prices to rise 50％to 75％in the next 5 to 10 years．With free markets ---52---economic growth，says Rainwater，―We should see a tremendous amount of pressure on prices．‖Perhaps．But there’s another，quite different----53----- —namely，that oil prices，adjusted forinflation，won’t rise at all over the long term．They may even fall．Why? First，because producers in the Mideast and elsewhere need the cash from oil too much to let their supply be interrupted for long，---54---- political and military skirmishing．Second，and more important，because demand growth can’t push prices upward as long as it is ----55--- by supply growth．And the supply curve for oil—the amount offered at any given price—is being pushed steadily outward，---56---- technology．PAPER TWO (请注意本试卷PAPER TWO 答案一律写在答题纸上)PART IV PARAPHRASEDirections:Rewrite the following sentences in your own words. （7.5 points, 1.5 each）62. I suppose that goes with the territory of enrolling in a university six hours from home．63. The implication that all money spent from then on would be my own was scary，yet funny as well．64. What’s mor e，many independent oil companies have moved to the cutting edge．65. While incorporating enhanced security requirements，the building remains open and accessible．66. The Freedom Tower will further its distinction as a world class model of energy efficiency and environmental sustainability．PART V WRITINGSupply the missing paragraphs (10 points)Directions:The following passage is incomplete with a couple of body paragraphs missing. Study the passage carefully and write the missing paragraphs in about 150 words. Make sure that your essay should illustrate the main point of the passage, and your tone and diction are in unity with the passage provided.The Myth of the Paperless OfficeWe’ve all been hearing about the approach of the paperless office for decades now, but the paper in our lives has only kept increasing. Technologies have emerged one after another to help us do away with what Egyptians first made out of riverside reeds several millennia ago, including electronic datebooks, ever-shrinking laptops, and the never-quite-ready e-book. We all know that paper takes up precious space, can be in only one place at a time, is extremely hard to index or search through, and lacks all the interactivity and linking ability of hypertext; and because we know this, we feel guilty about our continued reliance on it. Why haven't we been able to kick the habit?___________________________________________________________________________________________________________________________________________________________________________________________________All technologies come down to our trying to get what we want, what we desire, whether it’s faster travel, better health, a stronger golf game, sturdier office buildings, new kinds of entertainment, or simply money made from inventing. And much of what we desire comes down totaking control of our lives, doing what we please without being overwhelmed by what we don't please. We get overwhelmed by paper — by bills, reports, newspapers, magazines, books we should read, and so much else. We can’t help dreaming of a world where we can attain all we want from paper without expending the time and space it consumes. We want the benefits of paper without the paper itself.Someday, somewhere down the road, that may happen. But for now, at least, it looks both unlikely and pointless. One might as well have dreamed a century ago of the typewriter’s making the pencil obsolete．。