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【题目】A
The first ancient Olympic Games for which we still have written records were held in 776 BC. Coroebus won the only event at the Olympics. This made him the very first Olympic champion in history. Then they grew and continued to be played every four years. In 393 AD, the Roman emperor Theodosius Ⅰ, a Christian, announced to end the Games because of their pagan (异教的) influences.
About 1,500 years later, a young Frenchman named Pierre de Coubertin began their revival (恢复). In 1892 Coubertin first brought forward his idea to revive the Olympic Games but failed.
Two years later, Coubertin organized a meeting with 79 delegates (代表) who represented nine countries. At this meeting he got what he wanted. All the delegates at the conference voted for the Olympic Games. They also decided to have Coubertin set up an international committee to organize the Games. This committee became the International Olympic Committee (IOC) and Demetrious Vikelas from Greece was selected to be its first president. Athens was chosen for the revival of the Olympic Games and the planning was begun.
The very first modern Olympic Games opened in the first week of April, 1896. Since the Greek government had been unable to afford a stadium, a rich Greek architect, Georgios Averoff, donated one million drachmas (over $100,000) to repair the Panathenaic Stadium, originally built in 330 BC.
Since the Games were not well publicized internationally, contestants (选手) were not nationally chosen but rather came individually and at their own expense. Some contestants were tourists who happened to be in the area during the Games.
【1】What would be the best title for the passage?
A. The History of the Olympics
B. How Coubertin Set up IOC
C. The First Modern Olympic Games
D. Great Changes in the Olympic Games
【2】 Coubertin held a most important meeting with 79 delegates in______________.
A. 1500 B. 1892
C. 1894 D. 1896
【3】 Who offered money to help the first modern Olympic Games?
A. Demetrious Vikelas.
B. Coroebus.
C. Pierre de Coubertin.
D. Georgios Averoff.
【4】At the first modern Olympic Games, ______________.
A. winners were given money as prize
B. IOC invited contestants to tour Greece
C. there were no strict rules for being a contestant
D. many countries chose some athletes to compete
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【题目】如图甲所示是一个简单的多用电表的电路原理图。
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(1)当闭合开关________,断开开关________,可作电流表用;
(2)当闭合开关________,断开开关________,可作电压表用;
(3)当闭合开关________,断开开关________,可作欧姆表用;
(4)某个多用电表的面板如图乙所示,若表头满偏电流为1mA,内阻为1kΩ,所用电池的电动势为1.5V,内阻为0.5Ω,使用欧姆×1挡,若把多用电表的黑红表笔短接时,表针恰好指在电流满刻度处,则此时欧姆表的内电阻值为________。A、C、E刻度处对应的电阻值分别是________、________、________。
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【题目】如图所示,E=10 V,r=1 Ω,R1=R3=5 Ω,R2=4 Ω,C=100 μF。当S断开时,电容器中带电粒子恰好处于静止状态。求:
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(1)S闭合后,带电粒子加速度的大小和方向;
(2)S闭合后流过R3的总电荷量。
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【题目】如图所示是电饭煲的电路图,S1是一个控温开关,手动闭合后,当此开关温度达到居里点(103 ℃)时,会自动断开。S2是一个自动控温开关,当温度低于60 ℃时会自动闭合;温度高于80 ℃时,会自动断开。红灯是加热时的指示灯,黄灯是保温时的指示灯。分流电阻R1=R2=500 Ω,加热电阻丝R3=50 Ω,两灯电阻不计。
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(1)根据电路分析,叙述电饭煲煮饭的全过程(包括加热和保温的过程)。
(2)简要回答,如果不闭合开关S1,电饭煲能将饭煮熟吗?
(3)计算加热和保温两种状态下,电饭煲的消耗功率之比。
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【题目】短文改错
假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏词符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:
1. 每处错误及其修改均仅限一词;
2. 只允许修改10处,多者(从第11处起)不计分。
As Christmas is coming, I plan to buy something for my parent. What I want to give back is a VIP card of a health club but neither of them is doing enough exercise. My father works very hardly as a teacher, spending most of his time at school. My mother loves reading and often bury herself in her books. Therefore, all of them should exercise more from now on.
I want to give them this card to express my love and thanks for them. I hope that they will be able to get relaxing in the health club and make more friends here. At the same time, I hope that they can take care their health.
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【题目】如图所示为电动机提升重物的装置,电动机线圈的电阻为r=1 Ω,电动机两端电压为5 V,电路中的电流为1 A,物体A重20 N。忽略一切摩擦,求:
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(1)电动机线圈电阻消耗的热功率为多少?
(2)电动机输入功率和输出功率各是多少?
(3)10 s内电动机可以把重物匀速提升多高?
(4)这台电动机的机械效率是多少?
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【题目】有一灯泡上标有“6 V 0.1 A”字样,现要测绘该灯泡的伏安特性曲线,有下列器材可供选用
A.电压表(0~5 V,内阻2.0 kΩ)
B.电压表(0~10 V,内阻3.0 kΩ)
C.电流表(0~100m A,内阻2.0 Ω)
D.电流表(0~6 A,内阻1.5 Ω)
E.滑动变阻器(30 Ω,2 A)
F.滑动变阻器(100 Ω,0.5 A)
G.学生电源(直流9 V)及开关、导线等
(1)实验中所用的电压表应选________,电流表应选________,滑动变阻器应选________。
(2)画出实验电路图,要求电压从零开始测量。
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(3)根据你的实验电路,将图中所示的器材连成实验电路。
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(4)该同学描绘出的IU图像应是图中的________。
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【题目】短文改错(每小题1分,满分10分)
假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏词符号(∧),并在其下面写出该加的词。
删除:把多余的词用斜线(/)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:
1. 每处错误及其修改均仅限一词;
2. 只允许修改10处,多者(从第11处起)不计分。
This term our school has offer more than ten optional courses from which students can choose from. The courses are given from 4:00 to 5:30 every Thursday afternoon. Students show interest in optional courses. Their favorite are computers, speaking English, arts and so on. They say they have learned a lot about that is not taught in text books and they have got a great deal of practice. Therefore, students are not quite satisfied. They hope that more optional courses will be offered or the homework will be less. They suggest more trips and visits should organized so that they can learn more about what’s going on inside school.
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【题目】一块数码相机中用的锂电池的电压为3.6 V,容量为1 000 mA·h(相当于用1 000 mA的电流可放电1 h,用500 mA的电流可放电2 h,以此类推)。当关闭液晶屏时可拍摄照片400张左右,则每拍一张照片所消耗的电能约为________J;当打开液晶屏时可拍摄照片150张左右,则每拍一张照片液晶屏消耗的电能约为________J。
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