A
8、（南通市2008届基础调研测）2006年7月1日，世界上海拔最高、线路最长的青藏铁路全线通车，青藏铁路安装的一种电磁装置可以向控制中心传输信号，以确定火车的位置和运动状态，其原理是将能产生匀强磁场的磁铁安装在火车首节车厢下面，如图甲所示（俯视图），当它经过安放在两铁轨间的线圈时，线圈便产生一个电信号传输给控制中心．线圈边长分别为l1和l2，匝数为n，线圈和传输线的电阻忽略不计．若火车通过线圈时，控制中心接收到线圈两端的电压信号u与时间t的关系如图乙所示（ab、cd均为直线），t1、t2、t3、t4是运动过程的四个时刻，则火车 ACD
A．在t1~t2时间内做匀加速直线运动
B．在t3~t4时间内做匀减速直线运动
C．在t1~t2时间内加速度大小为
D．在t3~ t4时间内平均速度的大小为
9、（南京市2008届4月高三调研考试）
如图所示的电路中，电源电动势为E，内阻r不能忽略．R1和R2是两个定值电阻，L是一个自感系数较大的线圈．开关S原来是断开的．从开关S闭合到电路中电流达到稳定的时间内，通过R1的电流I1和通过R2的电流I2的变化情况是AC
A．I1开始较大而后逐渐变小
B．I1开始很小而后逐渐变大
C．I2开始很小而后逐渐变大
D．I2开始较大而后逐渐变小
10、（如皋市2008届抽样检测）
两金属棒和三根电阻丝如图连接,虚线框内存在均匀变化的匀强磁场，三根电阻丝的电阻大小之比R1:R2:R3=1：2：3，金属棒电阻不计。当S1、S2闭合，S3 断开时，闭合的回路中感应电流为I，当S2、S3闭合，S1
断开时，闭合的回路中感应电流为5I，当S1、S3闭合，S2 断开时，闭合的回路中感应电流是【 】D
A．0 B．3I C．6I
D．7I
11、（南通通州市2008届第二次统一测试）
如图所示，MN和PQ为两根足够长的水平光滑金属导轨，导轨电阻不计，变压器为理想变压器，现在水平导轨部分加一竖直向上的匀强磁场，金属棒ab与导轨电接触良好，则以下说法正确的是 （ ）CD
A．若ab棒匀速运动，则IR≠0，IC≠0
B．若ab棒匀速运动，则IR≠0，IC＝0
C．若ab棒在某一中心位置两侧做简谐运动，则IR≠0，IC≠0
D．若ab棒做匀加速运动，IR≠0，IC＝0
12、（南通通州市2008届第二次统一测试）物理学的基本原理在生产生活中有着广泛应用.下面列举的四种器件中，利用电磁感应现象工作的是（
）B
A.回旋加速器
B.日光灯 C.质谱仪 D.示波器
13、（2008年苏、锡、常、镇四市调查二）如图所示，在水平绝缘平面上固定足够长的平行光滑金属导轨（电阻不计），导轨左端连接一个阻值为R的电阻，质量为m的金属棒(电阻不计)放在导轨上，金属棒与导轨垂直且与导轨接触良好．整个装置放在匀强磁场中，磁场方向与导轨平面垂直，在用水平恒力F把金属棒从静止开始向右拉动的过程中，下列说法正确的是CD
A．恒力F与安培力做的功之和等于电路中产生的电能与金属棒获得的动能和
B．恒力F做的功一定等于克服安培力做的功与电路中产生的电能之和
C．恒力F做的功一定等于克服安培力做的功与金属棒获得的动能之和
D．恒力F做的功一定等于电路中产生的电能与金属棒获得的动能之和
14、（2008年苏、锡、常、镇四市调查二）如图所示，MN和PQ为处于同一水平面内的两根平行的光滑金属导轨，导轨的电阻不计．垂直导轨放置一根电阻不变的金属棒ab，金属棒与导轨接触良好．N、Q端接理想变压器的原线圈，理想变压器的输出端有三组副线圈，分别接电阻元件R、电感元件L（电阻不为零）和电容元件C．在水平金属导轨之间加竖直向下的磁感应强度随时间均匀增加的匀强磁场，若用IR、IL、Ic分别表示通过R、L和C的电流，则下列判断正确的是AC
A．若ab棒静止，则IR=0、IL=0、IC=0
B．在ab棒向左匀速运动过程中，
IR≠0、IL≠0、IC≠0
C．在ab棒向左匀速运动过程中，
IR≠0、IL≠0、IC=0
D．在ab棒向左匀加速运动过程中，则IR≠0、IL≠0、IC=0
15、（温州市十校联合体2008届期中联考）
如图所示，等腰直角三角形OPQ区域内存在匀强磁场，另有一等腰直角三角形导线框ABC以恒定的速度沿垂直于磁场方向穿过磁场，穿越过程中速度始终与AB边垂直且保持AC平行于OQ。关于线框中的感应电流，以下说法中正确的是BC
A．开始进入磁场时感应电流沿顺时针方向
B．开始进入磁场时感应电流最大
C．开始穿出磁场时感应电流沿顺时针方向
D．开始穿出磁场时感应电流最大
16、（温州市十校联合体2008届期中联考）如图所示，水平的平行虚线间距为d=50cm，其间有B=1.0T的匀强磁场。一个正方形线圈边长为l=10cm，线圈质量m=100g，电阻为R=0.20Ω。开始时，线圈的下边缘到磁场上边缘的距离为h=80cm。将线圈由静止释放，其下边缘刚进入磁场和刚穿出磁场时的速度相等。取g=10m/s2，
求：(1) 线圈下边缘刚进入磁场时，线圈产生电流的大小和方向；
(2)线圈进入磁场过程中产生的电热Q。
（1）线圈由1位置到2位置：自由落体运动，
设在2位置时速度为v0
(1分)
E=BLV (1分)
(1分)
由以上三式可得：I=2A (1分)
方向：逆时针 (1分)
（2）线圈进入磁场过程中产生的电热Q就是线圈从图中2位置到3位置产生的电热，
而2、3位置动能相同，
由能量守恒Q=mgd=0.50J (4分)
17、（江苏省九名校2007年第二次联考）(★★★★)
19．（16分）如图所示，水平放置的光滑平行导轨的宽L=0.2m，轨道平面内有竖直向上的匀强磁场，
磁感应强度B=0.5T，ab和cd棒均静止在导轨上，质量相等为m=0.1kg，电阻相等为R=0.5Ω．现用F=0.2N向右的水平恒力使ab棒由静止开始运动，经t=5s，ab棒的加速度a=1.37m/s2，则：
⑴此时ab和cd两棒的速度vab、 vcd各为多大？
⑵稳定时两棒的速度差是多少？
解：⑴ab棒在外力F的作用下向右运动，从而产生感应电动势，使得ab棒受到水平向左的安培力，cd棒受到水平向右的安培力，两棒同时向右运动，均产生感应电动势，其回路的等效电动势
E等 = Eab - Ecd = BLvab
- BLvcd = BL(vab-vcd)
= BL△v （2分）
根据牛顿第二定律有：F - F安= ma （2分）
又此时的安培力F安= BIL = （2分）
因为是非匀变速运动，故用动量定理有：
（F - F安）t = mvab-0 （1分）
F安t = mvcd-0 （1分）
得此时ab、cd两棒的速度分别为：vab =8.15m/s vcd=1.85m/s ．（2分）
⑵该题中的“稳定状态”又与前面两种情况不同，系统的合外力不为零且不变， “平衡状态”应该是它们的加速度相同，此时两棒速度不相同但保持“相对”稳定，所以整体以稳定的速度差、相同的加速度一起向右做加速运动．
用整体法有：F = 2ma′ （2分）
对cd棒用隔离法有： = ma′（2分）
从而可得稳定时速度差△v=vab-vcd=10m/s ．
（2分）
18、（江苏省九名校2007年第二次联考）(★★★)19．（16分）如图所示，足够长的金属导轨MN和PQ与R相连，平行地放在水平桌面上，质量为m的金属杆可以无摩擦地沿导轨运动．导轨与ab杆的电阻不计，导轨宽度为L，磁感应强度为B的匀强磁场垂直穿过整个导轨平面．现给金属杆ab一个瞬时冲量I0，使ab杆向右滑行．
（1）求回路的最大电流．
（2）当滑行过程中电阻上产生的热量为Q时，杆ab的加速度多大？
（3）杆ab从开始运动到停下共滑行了多少距离？
解：（1）由动量定理I0 = mv0
? 0 得v0 = （2分）
金属杆在导轨上做减速运动，刚开始时速度最大，感应电动势也最大，有：
Em = BLv （1分）
所以回路的最大电流Im = = ．（1分）
(2) 设此时杆的速度为v，由能的转化和守恒有：
Q = mv2 - mv20 （2分）
解得：v = （1分）
由牛顿第二定律得：BIL = ma （1分）
由闭合电路欧姆定律得：I = （1分）
解得：a = ．（1分）
（3）对全过程应用动量定理有：
―BIL?Δt = 0 ? I0 （2分）
而I = = （2分）
解得：x = ．（2分）
19、（南京市2008年高三总复习试卷）（18分）如图所示，一个质量m=0.1 kg、阻值R=0.5Ω的正方形金属框，放在表面绝缘且光滑的斜面顶端（框上边与从AA‘重合），自静止开始沿斜面下滑，下滑过程中穿过一段边界与斜面底边BB‘平行、宽度为d的匀强磁场后滑至斜面底端（框下边与BB‘重合）。设金属在下滑过程中的速度为v时所对应的位移为s，那么v2―s图象如图所示，已知匀强磁场方向垂直斜面向上。试问：
（1）根据v2―s图象所提供的信息，计算出斜面倾角
和匀强磁场的宽度d。
（2）匀强磁场的磁感应强度为多大?金属框从斜面顶端滑至底端所需的时间为多少?
解：（1）由
图象可知，金属框从开始运动到位移
过程中，做匀加速直线运动。根据运动学公式
①，动力学公式
②，代入数据解得
，
。
由图象可知，金属框从1.6 m运动到2.6 m过程中做匀速直线运动，位移
，加速度
，速度
；从2.6m运动到3.4m过程中做匀加速直线运动，
，初速度
，加速度
。由此可判断，金属框从进入磁场开始到完全离开磁场一直在做匀速直线运动，故s2=2d③，d=0.5 m。
（2）由匀速直线运动，当金属框运动位移为s=2.6m时开始做匀速直线运动，故受力平衡。即
④，解得
。
金属框从斜面顶端滑至底端所需的时间
⑤
评分标准：（1）（10分）写出①②两式各得2分，得到得2分，写出③式得3分，得到d=0.5m得1分，（2）（8分）写出④⑤两式各得3分，分别解出B与t的值再各得1分，答不出酌情扣分。
20、（南通通州市2008届第二次统一测试）（13分）两根相距为L的足够长的金属直角导轨如图所示放置，它们各有一边在同一水平面内，另一边垂直于水平面．质量均为m的金属细杆ab、cd与导轨垂直接触形成闭合回路，杆与水平和竖直导轨之间有相同的动摩擦因数μ，导轨电阻不计，回路总电阻为2R，整个装置处于磁感应强度大小为B、方向竖直向上的匀强磁场中．当ab杆在平行于水平导轨的拉力作用下沿导轨向右匀速运动时，cd杆也正好以某一速度向下做匀速运动，设运动过程中金属细杆ab、cd与导轨接触良好，重力加速度为g，求：
（1）ab杆匀速运动的速度v1；
（2）ab杆所受拉力F；
（3）ab杆以v1匀速运动时，cd杆以v2（v2已知）匀速运动，则在cd杆向下运动
过程中，整个回路中产生的焦耳热．
解：（1）ab杆向右运动时，ab杆中产生的感应电动势方向为a→b，
大小为
（1分）
cd杆中的感应电流方向为d→c，cd杆受到的安培力方向水平向右
安培力大小为
① （2分）
cd杆向下匀速运动，有
②
（2分）
解①、②两式，ab杆匀速运动的速度为
=
③
（1分）
（2）ab杆所受拉力F
+μmg
④ （3分）
（3）设cd杆以
速度向下运动过程中，ab杆匀速运动了
距离，
， ∴
（2分）
整个回路中产生的焦耳热等于克服安培力所做的功
=
=
（2分）
21、（江苏省2008年百校样本分析考试）（12分）如图光滑斜面的倾角θ＝30°，在斜面上放置一矩形线框abcd，ab边的边长l1＝1m，bc边的长l2＝0.6m，线框的质量m＝1kg，电阻R＝0.1Ω，线框用细线通过定滑轮与重物相连，重物质量M＝2kg，斜面上ef线与gh线（ef∥gh ∥pq）间有垂直斜面向上的匀强磁场，磁感应强度为B1＝0.5T，
gh线与pq线间有垂直斜面向下的匀强磁场，磁感应强度B2＝0.5T．如果线框从静止开始运动，当ab边进入磁场时恰好做匀速直线运动，ab边由静止开始运动到gh线所用的时间为2.3s
,求：
（1）求ef线和gh线间的距离；
（2）ab边由静止开始运动到gh线这段时间内产生的焦耳热；
（3） ab边刚进入gh线瞬间线框的加速度．
⑴线框abcd受力平衡
（1分）
ab边进入磁场切割磁感线，产生的电动势 
形成的感应电流
受到的安培力
（1分）
联立得：
解得
（2分）
线框abcd进磁场B1前时，做匀加速直线运动；进磁场的过程中，做匀速直线运动；进入磁场后到运动到gh线，仍做匀加速直线运动．
进磁场前 对M： 
对m: 
联立解得：
（1分）
该阶段运动时间为 
进磁场B1过程中 匀速运动时间 
进磁场后 线框受力情况同进磁场前，所以该阶段的加速度仍为
（1分）
ef线和gh线间的距离
（1分）
此时线框的速度为 
⑵ 
（3分）
(3) ab边刚进入gh线瞬间线框的加速度沿斜面向下
（2分）
解得： 
22、（淮安、连云港、宿迁、徐州四市2008第三次调研）（10分）如图所示，足够长的光滑平行金属导轨cd和ef，水平放置且相距L，在其左端各固定一个半径为r的四分之三金属光滑圆环，两圆环面平行且竖直。在水平导轨和圆环上各有一根与导轨垂直的金属杆，两金属杆与水平导轨、金属圆环形成闭合回路，两金属杆质量均为m，电阻均为R，其余电阻不计。整个装置放在磁感应强度大小为B、方向竖直向上的匀强磁场中。当用水平向右的恒力F=
mg拉细杆a，达到匀速运动时，杆b恰好静止在圆环上某处，试求：
（1）杆a做匀速运动时，回路中的感应电流；
（2）杆a做匀速运动时的速度；
（3）杆b静止的位置距圆环最低点的高度。
⑴匀速时，拉力与安培力平衡，F=BIL
得：
（2分）
⑵金属棒a切割磁感线，产生的电动势E=BLv
回路电流
联立得：
（4分）
⑶平衡时，棒和圆心的连线与竖直方向的夹角为θ，
得：θ=60°
（4分）
23、（淮安、连云港、宿迁、徐州四市2008第2次调研）如图甲所示，一边长L=2.5m、质量m=0.5kg的正方形金属线框，放在光滑绝缘的水平面上，整个装置放在方向竖直向上、磁感应强度B=0.8T的匀强磁场中，它的一边与磁场的边界MN重合。在水平力F作用下由静止开始向左运动，经过5s线框被拉出磁场。测得金属线框中的电流随时间变化的图像如乙图所示，在金属线框被拉出的过程中。
⑴求通过线框导线截面的电量及线框的电阻；
⑵写出水平力F随时间变化的表达式；
⑶已知在这5s内力F做功1.92J，那么在此过程中，线框产生的焦耳热是多少？
⑴根据q =
t，由I－t图象得：q =1.25C （2分）
又根据＝
＝
（2分）
得R = 4Ω （1分）
⑵由电流图像可知，感应电流随时间变化的规律：I＝0.1t （1分）
由感应电流
，可得金属框的速度随时间也是线性变化的，
（1分）
线框做匀加速直线运动，加速度a = 0.2m/s2
（1分）
线框在外力F和安培力FA作用下做匀加速直线运动，
（1分）
得力F＝（0.2 t＋0.1）N
（1分）
⑶ t＝5s时，线框从磁场中拉出时的速度v5 = at =1m/s
（1分）
线框中产生的焦耳热
J （3分）
24、（南京市2008届4月高三调研考试）（本题12分）如图，竖直放置的光滑平行金属导轨MN、PQ相距L，在M点和P点间接一个阻值为R的电阻，在两导轨间 OO1O1′O′ 矩形区域内有垂直导轨平面向里、宽为d的匀强磁场，磁感应强度为B．一质量为m，电阻为r的导体棒ab垂直搁在导轨上，与磁场上边边界相距d0．现使ab棒由静止开始释放，棒ab在离开磁场前已经做匀速直线运动（棒ab与导轨始终保持良好的电接触且下落过程中始终保持水平，导轨电阻不计）．求：
（1）棒ab在离开磁场下边界时的速度；
（2）棒ab在通过磁场区的过程中产生的焦耳热；
（3）试分析讨论ab棒在磁场中可能出现的运动情况．
（1）设ab棒离开磁场边界前做匀速运动的速度为v，产生的电动势为E = BLv…（1分）
电路中电流 I = 
…………………………（1分）
对ab棒，由平衡条件得 mg－BIL = 0…………………（2分）
解得 v = 
……………………………（1分）
(2) 由能量守恒定律：mg(d0 + d) = E电 + 
mv2……………………（1分)
解得 
……………………（1分）
……………………（1分）
（3）设棒刚进入磁场时的速度为v0，由mgd0 = mv02，得v0 = 
…（1分）
棒在磁场中匀速时速度为v = ，则
1 当v0=v，即d0 = 
时，棒进入磁场后做匀速直线运 ………（1分）
2 当v0 < v，即d0 <时，棒进入磁场后做先加速后匀速直线运动（1分）
3 当v0＞v，即d0＞时，棒进入磁场后做先减速后匀速直线运动（1分）
25、（苏、锡、常、镇四市教学调查一）（14分）如图所示，光滑且足够长的平行金属导轨
和
固定在同一水平面上，两导轨间距，电阻
，导轨上静止放置一质量
、电阻
的金属杆，导轨电阻忽略不计，整个装置处在磁感应强度
的匀强磁场中，磁场的方向竖直向下，现用一外力
沿水平方向拉杆，使之由静止起做匀加速运动并开始计时，若5s末理想电压表的读数为0.2V.求：
（1）5s末时电阻
上消耗的电功率；
（2）金属杆在5s末的运动速率；
（3）5s末时外力的功率.
26、（盐城市2008届高三第一次调研）（14分）如图(甲)所示，一对平行光滑轨道放置在水平面上，两轨道相距L=1 m，两轨道之间用R=2Ω电阻连接，一质量为m=0.5 kg的导体杆与两轨道垂直，静止地放在轨道上，杆及轨道的电阻均忽略不计，整个装置处于磁感应强度B=2 T的匀强磁场中，磁场方向垂直轨道平面向上．现用水平拉力沿轨道方向拉导体杆，拉力F与导体杆运动的位移s间关系如图10(乙)所示，当拉力达到最大时，导体杆开始做匀速运动，经过位移s=2.5 m时，撤去拉力，导体杆又滑行了s′=2 m停下．求：
(1)导体杆运动过程中的最大速度；
(2)拉力F作用过程中，电阻R上产生的焦耳热；
（1）撤去拉力F后，设回路中平均电流为I，撤去拉力F时导体杆速度为v，由动量定理得 －BIL·Δt=0-mv
I＝
=BLs΄/(RΔt)
v＝B2L2s΄/(mR)＝8 m/s
(8分)
(2)由题知，导体杆匀速运动速度为v，此时最大拉力F与杆受的安培力大小相等，即
F＝B2L2v/R
代入数据得 F＝16 N
设拉力作用过程中，电阻R上产生的焦耳热为Q
由功能关系可得 Q+mv2/2=WF
又由F-s图像可知 WF＝30 J
代入数据得 Q
=14 J
27、（南通、扬州、泰州三市2008届第二次调研）(15分)如图甲所示，光滑绝缘 水平面上一矩形金属线圈 abcd的质量为m、电阻为R、ad边长度为L，其右侧是有左右边界的匀强磁场，磁场方向垂直纸面向外，磁感应强度大小为B，ab边长度与有界磁场区域宽度相等，在t=0时刻线圈以初速度v0进入磁场，在t=T时刻线圈刚好全部进入磁场且速度为vl，此时对线圈施加一沿运动方向的变力F，使线圈在t=2T时刻线圈
试题详情
云南省昆明市2008―2009学年上学期高三期末检测
英 语 试 题
本试卷分为第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分.共150分，考试时间120分钟。
第I卷（选择题，共115分）
注意事项：
1．答题前，考生务必用黑色碳素笔将自己的姓名、准考证号、考场号、座位号在答题卡上填写清楚，并认真核准条形码上的准考证号、考场号、座位号及科目，在规定的位置贴好条形码。
2．每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦擦干净后，再选涂其它答案标号。答在试卷上的答案无效。
第一部分：听力（满分30分）
做题时，先将答案划在试卷上。录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节 （共5小题；每小题1.5分，满分7.5分）
听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。
例：How
much is the shirt?
A．￡19.5. B．￡9.15. C．￡9.18.
答案是B。
1．What is the woman going to do?
A．Ask
for help. B．Leave
the window open. C．Shut
the window.
2．Where are the speakers now?
A．In
a bookstore. B．In
a library. C．In
the kitchen.
3．How was the concert?
A．Boring. B．Exciting. C．Disappointing.
4．What is probably the relationship between the
two speakers?
A．Mother
and son. B．Husband
and wife. C．Renter
and house owner.
5．What time does the flight take off?
A．At
6:50. B．At
5:50. C．At
6:10.
第二节 （共15小题；每题1.5分，满分22.5分）
听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A，B，C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，每小题将给出5秒钟的作答时间。每段对话或独白读两遍。
听第6段材料，回答第6~8题。
6．When do they plan to give performances?
A．These
days. B．This
month. C．On
weekends.
7．What is Robert asked to do?
A．To
sing some songs. B．To
meet some people. C．To
play in the group.
8．Why is the man not sure of joining the group?
A．He doesn’t
think he is good enough.
B．He
doesn’t want to practise.
C．He
isn’t interested in performing.
听第7段材料，回答第9―11题。
9．What is the woman?
A．A
student. B．A
teacher. C．A
tourist.
10．What will the woman help the foreigners practise?
A．Reading. B．Speaking. C．Writing.
11．When will the woman take the part ? time job?
A．In
the summer vacation. B．On weekends. C．Before
exams.
听第8段材料，回答第12―14题。
12．How does the woman keep in touch with her family?
A．By
writhing letters. B．By
sending email. C．By
making phone calls.
13．Why does the man like to be online?
A．To
get interesting information.
B．To
play games.
C．To
see films.
14．What does the man suggest the woman do?
A．Make
use of the Internet.
B．Talk
about music online.
C．Make
friends all over the world.
听第9段材料，回答第15―17题。
15．What did the man study at first?
A．Marketing. B．Chemistry. C．Language.
16．Why does the man want to give up his first job?
A．He
has to leave the company.
B．He
needs to earn more money.
C．He doesn’t
like a small company.
17．What job does the man hope to do?
A．Company
secretary.
B．International
marketing manager.
C．Software
designer.
听第10段材料，回答第18―20题。
18．Why did the young woman put her head out?
A．She
heard someone shout.
B．She
wanted to talk.
C．She
had nothing to do.
19．Why did the young woman get angry?
A．The
board nearly hit her.
B．The
man above shouted at her.
C．She
was disturbed.
20．How can a beginner understand a new idiom?
A．By
guessing the meaning of the words.
B．By practicing
it in everyday life.
C．By
referring to a dictionary.
第二部分：英语知识运用（共两节, 满分45分）
第一节 语法和词汇知识（共15小题；每小题1分，满分15分）
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
21．--- It's nothing serious. But do remember to
take this medicine three times a day.
--- Thank you. ________.
A．Got
it
B．Heard it C．Make it D．Take it
22．As Senior 3 students, we find it important to a good state of mind.
A．stick
to
B．attend to C．keep up D．stay up
23．______, I think, and the problem could be
settled soon.
A．Making
more effort B．So
long as you make more effort
C．If
you make more effort D．A
bit more effort
24．It is said that this is a special book, which
____ many events not found in other history books.
A．writes B．instructs C．covers D．reads
25．--- Could I ride your car to the meeting next
Monday?
--- _______. I'm afraid there might be no
space in the car.
A．You are welcome B．That
depends
C．Take it easy D．No
way
26．He has hurt her, so she won't forgive him _____
he makes an apology to her.
A．although B．once C．if
D．unless
27．When ______ to make a list of universities in Britain, most people would start with Cambridge or Oxford.
A．to
ask B．asking C．asked D．ask
28．--- Bad luck! We lost to their team 80-82 in the final.
--- Never mind --- it could be ________.
A．worst B．better C．best D．worse
29．--- I can't stand the loud music any longer.
Could you turn down your radio?
--- Pardon? What _______?
A．had
you said B．did you say C．have
you said D．are you saying
30．--- Shall I book a table for the family reunion
dinner ahead of time?
--- Yes, you ______. The
restaurant is always full, especially during the Spring Festival.
A．will
B．might C．must D．can
31．There is no _____ in trying to persuade him to
join us, for he enjoys being alone.
A．doubt B．wonder C．difficulty D．point
32．Our teacher seems unhappy. We don’t understand
_______ it was that made him feel that way.
A．which B．what
C．why D．how
33．--- Have you ever heard of the new model of
computer, Tom?
--- Yes, of course. But I haven’t
decided whether to buy ________.
A．this
B．it
C．one
D．that
34．Unfortunately, all the equipment, the computers
and the printers included, ______ in the big earthquake.
A．was damaged B．were
damaged
C．has been damaged D．have
been damaged
35．This is an amazing area of study ______ new
discoveries are being made almost every day.
A．from which B．by
which
C．in which
D．through
which
第二节 完型填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，掌握其大意，然后从36―55各题所给的四个选项（A、B、C和D）中，选出最佳选项
When Don Richmond and his brother Mark stole their
mother’s pocket address book one day, some 13 years ago, the two young men had
nothing but good intentions.
Their 36 - Brian, a radio personality in Singapore
and Suanne, a health advisor ? had 37 at a young age and didn’t have the means
to have a big 38 . Don and his brother had heard
their parents 39 several times that they wished they’d
been able to 40 more people to share their joy. Since
Mark was having great 41 following in his father’s footsteps as a
radio host, he felt he was 42 to give his parents the perfect 25 th
wedding 43 present ? the wedding they’d always
wanted. Don was 44 in school at that time.
The Richmond
boys got 45 . Going through the address book,
they 46 family, old friends and colleagues, as
well as made 47 to fly their grandmother in from England. At
that point, Brian had not seen 48 mother for about seven years. On the
evening of the August 1st wedding anniversary, Don and Mark 49 to meet their parents at the hotel where
the feast would take place. They’d 50 thirteen tables and all their invited
guests had already been told to remain 51 so as not to spoil the surprise. Their parents
were caught 52 unawares (出其不意地) when they
entered the room and were 53 by 130 guests yelling at the same time “Surprise!”
“My parents were truly 54 ,” says Don, now 31. “My
parents say it was their best wedding anniversary ever. But they also 55 us that peaceful dinners with
the family are pretty good, too.”
36．A．father B．mother C．parents D．brothers
37．A．met B．married C．argued D．separated
38．A．meeting B．party C．picnic D．wedding
39．A．mention B．regret C．announce D．inform
40．A．invite B．force C．cause D．require
41．A．job B．success C．surprise D．business
42．A．likely B．friendly C．able D．honest
43．A．ceremony B．anniversary C．celebration D．activity
44．A．already B．yet C．also D．still
45．A．busy B．relaxed C．curious D．puzzled
46．A．found out B．thought
of C．rang
up D．called
on
47．A．comments B．plans C．jokes D．guesses
48．A．its B．their C．her D．his
49．A．failed B．arranged C．tried D．hurried
50．A．booked B．bought C．asked D．borrowed
51．A．active B．calm C．quiet D．happy
52．A．completely B．foolishly C．silently D．finally
53．A．found B．praised C．greeted D．noticed
54．A．interested B．pleased C．scared D．shocked
55．A．request B．promise C．warn D．remind
第三部分：阅读理解（共20小题，每题2分，满分40分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。
A
My name is Hua Fei and I am a sporting robot of
the 23rd century. I am an expert at high flying exercises. I jump
from spaceships and as I fall I turn, dive circle and dance until I softly land
as close as I can to the finishing line. Robot competitions in the 23rd
century are truly a popular sport. Fans from all over China watch their
handheld TVs when a competition comes on. Last time I took part in the 78th
Olympics on a flying island above Brussels
in the sky. I won the silver medal for my performance.
This year I had the honour to be chosen again. I
wanted to meet robots from other countries and explore ideas about sport.
However, my programmer fell ill the week before we were going to leave. It was
very painful for her and I felt very frightened. I no longer felt so confident
that I would win. The day of the competition was rather cold for my legs and my
special oil began to freeze. I paused before I jumped from the starting place
on a little spaceship but then I began my performance. At the correct moment I
tried to open my parachute but there was a problem. It only opened a little.
Instead of flying softly to earth I began to fall faster and faster so that I
could not turn, dive, circle or dance. My heart stopped beating as I landed
heavily on a mountain covered with snow.
This is why I am writing to you from my hospital
bed with two broken legs and a fragile (易碎的) head. I did not
win anything at the Olympics after all. I need the factory to build me two new
legs and an even bigger head. Then I will be able to compete once more. Let’s
hope for greater success in the next Olympics!
56．What we know about Hua Fei is that he is .
A．an
experienced expert B．a
computer system
C．a
flying spaceship D．a
sporting robot
57．According to the passage, would be a popular sport in the 23rd
century.
A．computer
games B．robot
competitions
C．plane
controlling D．sky
diving
58．The reason why Hua Fei failed to perform well
this year is that .
A．he
didn’t do it in the right way B．he
couldn’t open his parachute
C．he
didn’t replace the batteries D．he
was affected by a wrong programme
59．At the moment, Hua Fei is .
A．being
treated in a hospital B．being
repaired in a factory
C．being
trained for the next Olympics D．being
taught to do high flying exercises
B
Phyllis Lee of Singapore knew something wasn’t
right. Her younger son, Alex, then six years old, was getting good grades in
his private kindergarten classes. But Lee realized something was wrong when
Alex came home one day, crying, with “zeroes” on his Chinese spelling test. Lee
decided to investigate. According to Lee, the teacher would frequently describe
Alex’s Chinese writing as ‘ghost writings’ and made him a laughing stock in
class instead of helping him out.
Lee, 46, spent the next 12 months teaching Alex
and still helps him when necessary. She not only taught him the formation of
the Chinese words but also their origin so that he could understand better,
often taking more than an hour to read a simple paragraph. Visits to the
library and surfing the Internet kept her up to speed on teaching materials.
Alex’s grades improved and by the end of Year One, he had become one of the top
students in Chinese in his class.
Alex is keeping an A ? plus average in all
subjects, and his mother’s involvement is a big reason behind it. Alex, now 11,
recently wrote a book recording his struggles with Chinese, which an
international education center has published to inspire its students. He
sometimes writes for local student magazines as well.
Lee has always had input into the education of
Alex. She reads to him “all the time.” As a result, he is an eager reader who
regularly visit the library.
To Lee, one of the most valuable things she does
is to take turns with her husband to drive Alex to school. “We’d talk along the
way. Talking enables me to have a better understanding of my child and reminds
me of changes every now and then so that I know when to get involved, she says.”
60．Alex arrived home with tears because .
A．he
failed in the Chinese exam B．his
teacher punished him
C．he
didn’t want to learn Chinese D．his
classmates did him wrong
61．Alex succeeded in learning Chinese with .
A．his
teacher’s guide B．his
classmates’ help
C．his
father’s influence D．his
mother’s instruction
62．For Alex the great achievement recently is that .
A．he
gets A’s in some subjects B．he
wrote a book
C．he
earns some money D．he
understands Chinese better
63．Lee’s education method succeeds mainly because
of her .
A．involvement B．communication C．tolerance D．encouragement
C
So
you want to be a writer … Send us your joke, anecdote or story, and if we
publish it in the
magazine, we’ll pay as follows:
●MY STORY $ 500 ●FACTS
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share your question with the world?
original and less than 1000 words. ●SUBMIT
(提交) YOUR ITEM
●EVERYDAY HEROES $ 100 Jokes
rdasia. com/jokes
Have you heard of an ordinary person Comments
rdasia.com/comments
who has done something extraordinary? Stories
rdasia.com/submit
Tell us about the person and, if we Fax
(65) 6749 ? 3616
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finding the hero. and
mail to: Reader’s Digest Asia,
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914010
at home ? especially when kids are ●THE
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your gem (佳作) in Life’s Like That, All in number.
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64．The purpose of this advertisement could be to .
A．encourage
people to writers B．persuade
people to buy the magazine
C．attract
people to write articles D．let
people make a living by writing
65．If you want to get $ 500, your article has to be
.
A．about
personal stories B．about
heroes
C．chosen
and published before D．rewritten
from other articles
66．Laughter, the Best Medicine and Life’s Like That
are two .
A．books B．articles C．programmes D．columns
67．In the advertisement, rdasia. stands for .
A．Record
Digital Asia B．Reader’s
Digest Asia
C．Remember
Day Asia D．Register
Date Asia
D
Last week at a friend’s birthday party, there
was a mooncake eating contest and I persuaded my good friend Jonathan to take
part in it. Even though he had just finished a big dinner, he managed to win
the contest. Not only did he win a bottle of nice whiskey, but also a big box
of expensive Hong Kong mooncakes. A few days
later, I was hosting an opening party for my new office. Jonathan showed up with
the lovely box of Hong Kong mooncakes he had
won the other night. I thought it was a lovely joke, and the mooncakes were
delicious. Still, it got me thinking about the concept of regifting in China.
In the States, we have a tradition around
Christmas similar to giving mooncakes, only we call them fruitcakes. Fruitcakes
are made from terrible preserved (加工过的) fruit and nobody
likes to eat them. You often find your friends giving the fruitcake you gave
them to someone else, and so on. But fruitcakes aside, it isn’t very often to
catch someone regifting something in America, as it’s seen to be very cheap and
embarrassing (尴尬的). An obvious way to tell if something has been
regifted is to check the wrapping (包装).
However, many of my friends in China will
proudly regift an old gift, especially if it is still wrapped in a pretty box. I
find it somewhat uncomfortable to receive a gift that I know wasn’t bought for
me. But I also understand that the gift is perfectly good, it just lacks the
special meaning of being picked out by a friend. There are many occasions in
Chinese culture when gifts are necessary. There are traditional items such as
tea, cigarettes and liquor which seem fine to regift. These gifts are not
personal and have no special meaning. But is it really proper to give someone
something that was never bought for them in the first place?
68．This article is written to .
A．praise
some customs in China B．question
a social practice
C．show
how to regift D．tell
an embarrassing story
69．Which of the following is TRUE according to the
passage?
A．Americans
often regift things on holidays.
B．Regifting
can hardly be seen in China.
C．It
is comfortable to be seen to regift in America.
D．It
is acceptable to regift some traditional items in China.
70．The second paragraph is mainly about in
the USA.
A．giving
fruitcakes B．regifting
C．checking
the wrapping of gifts D．Christmas
tradition
71．The author thinks it really uncomfortable to
receive .
A．an
expensive gift from a close friend B．a gift
given again by a friend
C．some
items such as tea and cigarettes D．a
box of mooncakes from Hong Kong
E
The Internet is now a central part of everyday
life. The number of Internet hours in the West is increasing each month, but
online addiction is still not attracting a great deal of attention.
Perhaps one reason Internet addiction has not taken
off in the West is that there are too many other vices (不良事物)
available. In a society relatively open to sex, gambling, alcohol and drugs,
computer games are not always appealing to young people. In fact, there is
almost a shame attached to playing online games. Many consider it an “uncool”
thing to do. They would rather spend their free time meeting friends.
But this is not to say that people don’t do it.
One website, wowdetox.com, still offers support to recovering “addicts”. One
user posted on the website: “I would play all night and spend all day sleeping.
I just quit a month ago. Best decision ever.” This is just one example from
around 1,660 pages of confessions (坦言). Still, computer
game addiction is not officially recognized in the West. Just last years, the
American Medical Association refused calls to have computer game addiction
classified (分类) as a disease, saying that, “Nothing suggests it is a
complex disease similar to alcoholism.”
Online gaming is more personal in the West. It
is rare for people to visit Internet cafes or play with friends at home. After
all, the majority of households have their own fast Internet connection. This
removes the social joy with friends. And this choice of playing alone is not
very appealing to many people.
72．Why hasn’t Internet addiction become a big
problem in the West?
A．Surfing
the Internet is not convenient.
B．People
have other choices for fun.
C．The
government has taken proper measures.
D．People
are too busy with their work.
73．The underlined part in Paragraph 2 is closest in
meaning to .
A．become
popular quickly B．left
some place
C．got
one’s clothes off D．taken
something away
74．According to the passage, which of the following
is TRUE in the USA?
A．Personal
playing online is attractive.
B．Computer
game addiction is officially recognized.
C．It
is a shame to play too much online games.
D．Online
game addition is considered similar to alcoholism.
75．We can learn from this passage that .
A．surfing
the Internet is not so attractive in the west
B．many
other things interest western people
C．the
Internet is a central part of everyday life
D．online
games are getting more attractive in the west
第Ⅱ卷（共35分）
第四部分：写作（共两节，满分35分）
第一节 短文改错（共10小题；每小题1分，满分10分）
此题要求改正所给短文中的错误.对标题号的每一行做出判断：如无错误，在该行右边的横线上划（√）；如有错误（每行只有一个错误），则按下列情况改正：
此行多一个词：把多余的词用斜线划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符号（^），在该行右边横线上写出该加的词。
此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
Have you ever suffered from some pains while
grow up? 76．
Don't worry. I'll tell you some possible ways to
deal with it. 77．
If you have few friends because you are shyly,
you
78．
may try to say hello to your classmates with
smile
79．
first or start to talk with them first. Then
you'll find
80．
they are friendly but very easy to get along
with.
81．
To get good grades, you had to stop reading
entertainment 82．
magazine, and try your best to learn your
lessons well.
83．
Believe on yourself, and you'll be successful.
If you have any
84．
questions, and you can turn to your friends or
teachers for help. 85．
第二节 书面表达（满分25分）
假如你是李华，对好莱坞环球影城（Hollywood
Universal Studio）很感兴趣。于是写信给你的美国笔友Peter，询问有关影城的情况。要点如下：
1．影城的位置；
2．游客可以参加的活动；
3．游览所需的时间；
4．游览的大概费用。
注意：
1．词数100左右；
2．可以适当增加细节，以使行文连贯；
3．开头语已为你写好。
Dear Peter,
How’s everything going?
Yours,
Li Hua
试题详情
电阻
、电容
与一线圈连成闭合电路，条形磁铁静止于线圈的正上方，
极朝下，如图所示。现使磁铁自由下落，在
、从
到
，上极板带正电；
、从
、从
如图甲所示，光滑导轨水平放置在与水平方向夹
角斜向下的匀强磁场中，匀强磁场的磁感应强度B随时间的变化规律如图乙所示（规定斜向下为正方向），导体棒ab垂直导轨放置，除电阻R的阻值外，其余电阻不计，导体棒ab在水平外力作用下始终处于静止状态。规定a→b的方向为电流的正方向，水平向右的方向为外力的正方向，则在0～t时间内，能正确反映流过导体棒ab的电流i和导体棒ab所受水平外力F随时间t变化的图象是( )D
如图甲所示，正三角形导线框abc放在匀强磁场中静止不动，磁场方向与线框平面垂直，磁感应强度B随时间t的变化关系如图乙所示，t=0时刻，磁感应强度的方向垂直纸面向里．图丙中能表示线框的ab边受到的磁场力F随时间t的变化关系的是(力的方向规定以向左为正方向)A
4、（南通四县市2008届高三联考）如图所示，金属棒ab置于水平放置的光滑框架cdef上，棒与框架接触良好，匀强磁场垂直于ab棒斜向下．从某时刻开始磁感应强度均匀减小，同时施加一个水平外力F使金属棒ab保持静止，则F C
D．方向向左，且为恒力
6、（苏北四市高三第三次调研）在磁感应强度为B的匀强磁场中,有一与磁场方向垂直长度为L金属杆aO,已知ab=bc=cO=L/3,a、c与磁场中以O为圆心的同心圆(都为部分圆弧)金属轨道始终接触良好.一电容为C的电容器接在轨道上,如图所示,当金属杆在与磁场垂直的平面内以O为轴,以角速度ω顺时针匀速转动时:（ ）AC
Pk(1－P)n－k 
Pk(1－P)n－k .files/image002.gif)
（1）判断物体带电性质，正电荷还是负电荷？.files/image003.gif)
（4）电场强度E的大小和方向.files/image004.gif)
(1)当两滑块A、B都与挡板碰撞后，C的速度是多大?.files/image006.jpg)
定一个轻弹簧，弹簧下端吊一个光滑小球，弹簧长度方向与斜面平行，现将木板连同弹簧、小球放在斜面上，用手固定木板时，弹簧示数为F.files/image008.gif)
，放手后，木板沿斜面下滑，稳定后弹簧示数为F.files/image010.gif)
，测得斜面斜角为θ，则木板与斜面间动摩擦因数为多少？（斜面体固定在地面上）.files/image012.jpg)
4有一倾角为θ的斜面，其底端固定一挡板M，另有三个木块A、B和C，它们的质.files/image014.gif)
=m.files/image016.gif)
=m，m.files/image018.gif)
=3 m，它们与斜面间的动摩擦因数都相同.其中木块A连接一轻弹簧放于斜面上，并通过轻弹簧与挡板M相连，如图所示.开始时，木块A静止在P处，弹簧处于自然伸长状态.木块B在Q点以初速度v.files/image020.gif)
向下运动，P、Q间的距离为L.已知木块B在下滑过程中做匀速直线运动，与木块A相碰后立刻一起向下运动，但不粘连，它们到达一个最低点后又向上运动，木块B向上运动恰好能回到Q点.若木块A静止于P点，木块C从Q点开始以初速度.files/image022.gif)
向下运动，经历同样过程，最后木块C停在斜面上的R点，求P、R间的距离L′的大小。.files/image023.gif)
（3）自木盒与第1个球相遇至与第2个球相遇的过程中，由于木盒与传送带间的摩擦而产生的热量是多少？.files/image025.gif)
（1）粒子穿过界面PS时偏离中心线RO的距离多远？.files/image027.jpg)
(1)释放小物体，第一次与滑板A壁碰前物体的速度v1，.files/image029.jpg)
.files/image031.jpg)
.files/image033.gif)
垂直NQ边向右匀速运动，当U型框的MP端滑至方框的最右侧（如图乙所示）时，方框上的bd两端的电势差为多大?此时方框的热功率为多大?.files/image035.gif)
），U型框最终将与方框分离．如果从U型框和方框不再接触开始，经过时间t后方框的最右侧和U型框的最左侧之间的距离为s．求两金属框分离后的速度各多大．.files/image036.gif)
.files/image038.gif)
、固定于竖直平面内的.files/image040.gif)
光滑圆弧轨道，轨道上端切线水平，N为待检验的固定曲面，该曲面在竖直面内的截面为半径.files/image042.gif)
的.files/image044.gif)
的小钢珠，假设某次发射的钢珠沿轨道恰好能经过M的上端点，水平飞出后落到N的某一点上，取.files/image046.gif)
，求：.files/image048.gif)
多大？.files/image050.gif)
上时的速度大小.files/image052.gif)
是多少？（结果保留两位有效数字）.files/image054.jpg)
.files/image056.jpg)
建筑工地上的黄沙堆成圆锥形，而且不管如何堆其角度是不变的。若测出其圆锥底的周长为12．5m，高为1．5m，如图所示。.files/image058.gif)
，与CB段间的动摩擦因数为.files/image060.gif)
，求.files/image064.gif)
.files/image066.jpg)
14(18分)如图10所示,空间分布着有理想边界的匀强电场和匀强磁场,左侧匀强电场的场强大小为E、方向水平向右，其宽度为L；中间区域匀强磁场的磁感应强度大小为B、方向垂直纸面向外；右侧匀强磁场的磁感应强度大小也为B、方向垂直纸面向里。一个带正电的粒子（质量m,电量q,不计重力）从电场左边缘a点由静止开始运动，穿过中间磁场区域进入右侧磁场区域后，又回到了a点，然后重复上述运动过程。（图中虚线为电场与磁场、相反方向磁场间的分界面，并不表示有什么障碍物）。.files/image068.jpg)
的小孔沿ab方向向盒内发射相同的带电粒子，粒子.files/image070.jpg)
.files/image071.gif)
（2）若金属棒的运动突然停止，带电粒子在磁场中继续运动，从这刻开始位移第一次达到mv0/qB时的时间间隔是多少？（磁场足够大）.files/image073.gif)
18(12分)如图所示，气缸放置在水平平台上，活塞质量为10kg，横截面积50cm2，厚度1cm，气缸全长21cm，气缸质量20kg，大气压强为1×105Pa，当温度为7℃时，活塞封闭的气柱长10cm，若将气缸倒过来放置时，活塞下方的空气能通过平台上的缺口与大气相通。g取10m/s2求：.files/image075.gif)
（1） 物块A上升时的最大速度；.files/image077.jpg)
20．M是气压式打包机的一个气缸，在图示状态时，缸内压强为Pl，容积为Vo．N是一个大活塞，横截面积为S2，左边连接有推板，推住一个包裹．缸的右边有一个小活塞，横截面积为S1，它的连接杆在B处与推杆AO以铰链连接，O为固定转动轴，B、O间距离为d．推杆推动一次，转过θ角(θ为一很小角)，小活塞移动的距离为dθ，则 .files/image079.jpg)
（2）ab棒由静止开始，以恒定的加速度a向左运动。讨论电容器中带电微粒的加速度如何变化。（设带电微粒始终未与极板接触。）