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2025年英语模拟考试题和答案（精选9篇）
篇1：英语模拟考试题和答案
英语模拟考试题和答案
英语模拟考试题和答案
一、用适当的句子完成对话。
A：1_______________________________.
B： I think I need a pair of sports shoes.
A： 2_______________________________.
B： For my son. He wears size ten.
A： 3________________________________.
B： Do you have other colors？ Black isn‘t his color.
A： 4_________________________________.
B： OK. He likes the color brown. How much is it？
A： 5___________________________________.
B： Forty dollars？ That’s a bit expensive. But I‘ll take it.
二、阅读理解
In England， people don’t usually talk much. You can go on a bus， or a train， and everyone sits looking out of the window. Often they read. They read books and papers， but they don‘t talk much. When you meet English people， they often talk about one thing---the weather. So when you meet somebody in England， you can say， Nice weather for the time of year！
But it was a little cold yesterday. Somebody may answer， But it got a bit warmer later. You can say.
Talk like this and the English will think， How friendly you are！
) 1. English people often _____ on a bus.
A. talk much
little
something
papers
) 2. When you meet English people， you can talk like this _____.
A. how do you do
B. how are you
C. Nice weather
to meet you
) 3. If you talk with the English people about the weather， they will think _____.
are friendly
are right
C. you are English
talk too much
) 4. English people always hope the weather will get _____.
) 5. Which is right？
A. English people like to talk on a bus.
B. English people didn’t enjoy the best weather
C. English people are the most friendly
D. English people don‘t talk much.
答案
一、用适当的句子完成对话。
1. What can I do for you？/ May I help you？
2. Who do you want to buy them for？
3. Would you like this black one？
4. How about the brown one？
5. Forty dollars.
引用石头爸的评述，第一道题若是出成单项那么难度最低，但是出成填空则难度最高。本题难度其实属于中上。每一句的判断依据其实只要看下一句即可，就基本上是看下句，填上句是比较好判断的一种。重点是要看第二句判断出这段对话时在商店等场所常用的买卖用语。所以第一句应该是what can I do for you？或是May I help you？接下来的四句话都是根据下文回答来写句子即可。
此类题目失分多的原因：。
，标点，或者句子不完整的情况。（这类失分最可惜，也最常见。）
3. 句子不符合英语习惯或不够礼貌。比如说如果第一句说：What do you need？就很有可能被判为错误。
二、阅读理解
1. D 解析：本题从第一句就可得出答案
2. C 解析：其实四个选项都是对的，但是出现在阅读完形中就应该根据文中的提示选最符合的`选项。文中说到，英国人喜欢讨论天气，所以应该选C。
3. A 解析：本题从文章最后一句可以得出答案。
4. A 解析：文中第二段中只是给出一个讨论天气的例子。在cold的天气里人们希望天气warmer一点，问题中问的是人们通常希望怎么样，应该选泛一点的选项，所以选better.
5. D 解析：本题从第一句可以得到答案。
篇2：模拟电路考试题和答案
一、选择合适的答案填空。(共10小题，每小题2分，共20分)
1、当稳压管在正常稳压工作时，其两端施加的外部电压的特点为( )。
A、反向偏置但不击穿 B、正向偏置但不击穿
C、正向偏置且被击穿 D、反向偏置且被击穿
2、双极型晶体管工作在饱和区的偏置条件是( )。
A、发射结正偏;集电结正偏 B、发射结正偏;集电结反偏
C、发射结反偏;集电结正偏 D、发射结反偏;集电结反偏
3、UGS=0V时，能够工作在恒流区的场效应管有( )。
A、结型管 B、增强型MOS管
C、耗尽型MOS管 D、以上三者都正确
4、在同时比较三种基本放大电路的特点时，下列描述正确是( )。
A、共射电路的Ri最小 B、共集电路的RO最小
C、共基电路的Ri最大 D、共射电路的RO最小
5、当我们在电路中引入电压并联负反馈后，与基本放大器的`输入、输出电阻相比，反馈放大器的输入、输出电阻的变化是( )。
A、输入电阻增大，输出电阻增大 B、输出电阻增大，输入电阻减小
C、输入电阻减小，输出电阻减小 D、输入电阻减小，输出电阻增大
6、欲将电压信号转换成与之成比例的电流信号，应在放大电路中引入( )。
A、电压串联负反馈 B、电压并联负反馈
C、电流串联负反馈 D、电流并联负反馈
7、集成运放的输入级采用差动放大电路的目的是( )。
A、提高电压放大倍数 B、抑制零点漂移
C、提高输入电阻 D、以上三者都正确
8、集成运放的输入级广泛采用了差分放大电路，它能有效放大的应该是( )。
A、差模信号 B、共模信号
C、既有差模信号，又有共模信号 D、以上三者都正确
9、为增大电压放大倍数，集成运放的中间级多采用( )。
A、共射放大电路 B、共集放大电路
C、共基放大电路 D、共漏放大电路
10、在OCL乙类功放电路中，若最大输出功率为5W，则电路中功放管的集电极最大功耗约为( )。
A、2、5W B、0、5W C、5W D、1W
二、填空题(每空2分，共10分)。
1、工作在放大区的某三极管，如果当IB从12μA增大到22μA时，IC从1mA变为2mA，那么它的β约为( )。
2、乙类功放电路的主要失真是( )失真。
3、集成电路中最常采用的级间耦合方式是( )耦合
4、直流稳压电源中，( )电路的目的是将正弦电压变为脉动的直流电压。
5、在RC桥式正弦波振荡电路中，若RC串并联选频网络中的电阻均为R，电容均为C，则其振荡频率( )。
三、判断下列说法是否正确，用“√”或“×”表示判断结果填入空内。(共5小题，每小题2分，共10分)
1、现测得两个共射放大电路空载时的电压放大倍数均为-40，将它们连成两级放大电路，其电压放大倍数应为1600。( × )
2、在功率放大电路中，输出功率愈大，功放管的功耗愈大。( × )
3、电容滤波电路适用于小电流负载，而电感滤波电路适用于大电流负载流。( √ )
4、结型场效应管外加的栅-源电压应使栅-源间的耗尽层承受反向电压，才能保证其RGS大的特点。( √ )
5、直接耦合多级放大电路只能放大直流信号。( × )
四、分析题(每小题5分，共10分)
1、电路如图所示，信号源电压 uI为正弦波时，测得输出电压uO波形如图所示，试问：
(1)电路产生了什么失真
(2)如何调节电阻RW以消除失真。
2、如图所示电路中，已知变压器副边电压有效值U2为20 V，
(T为电网电压的周期)。
试问：输出电压平均值UO(AV)
(1)正常情况UO(AV)为多少
(2)电容虚焊时UO(AV)又为多少
五、计算题(4小题，共50分)
1、电路如图所示，晶体管的b =60，rbe=1、2kΩ，UBEQ=0、7V，VCC=15V，Rb1=20kΩ，Rb2=60kΩ，Rc=3kΩ，Re=2kΩ，
RL=3kΩ。(16分)
(1)估算静态工作点Q点;
(2)画出该放大电路的交流等效电路;
(3)求该电路的Au、Ri和Ro
2、求解如图所示电路输出电压与输入电压的运算关系。(10分)
3、电路如图所示，T1管和T2管的β均为60，rbe均为3kΩ。试问：若输入直流信号uI1=10mv，uI2=6mv，则电路的共模输入电压uIC=差模输入电压uId=输出动态电压△uO=(12分)
4、电路如图所示;(12分)
(1)为了提高输入电阻，稳定输出电压，且减小非线性失真，应引入哪种组态的交流负反馈
(2)合理连线，接入信号源和反馈电阻。
(3)电路中D1和D2管有何作用
(4)若 ，则Rf应取多少千欧
篇3：模拟电路考试题和答案
一、选择合适的答案填空。(共10小题，每小题2分，共20分)
1、D;2、A;3、C;4、B;5、C;6、C;7、B;8、A;9、A;10、D。
二、填空题(每空2分，共10分)。
1、100; 2、交越; 3、直接; 4、整流; 5、;
三、判断下列说法是否正确，用“√”或“×”表示判断结果填入空内。(共5小题，每小题2分，共10分)
1、( × ); 2、( × ); 3、( √ ); 4、( √ ); 5、( × );
四、分析题(每小题5分，共10分)
1、：(1)电路产生了饱和失真。
(2)增大电阻RW以消除失真。
2、：(1)正常情况 UO(AV)= 24 V
(2)电容虚焊时UO(AV)= 18 V
篇4：考研英语模拟考试题
关于考研英语模拟考试题
SectionⅠ Use of English
Directions: Read the following text. Choose the best word（s） for each numbered blank and mark A, B, C or D on ANSWER SHEET 1.（ 10 points ）
Health implies more than physical fitness. It also implies mental and emotional well-being. An angry, frustrated, emotionally 1 person in good physical condition is not 2 healthy. Mental health, therefore, has much to do 3 how a person copes with the world as she/he exists. Many of the factors that 4 physical health also affect mental and emotional well-being.
Having a good self-image means that people have positive 5 pictures and good, positive feelings about themselves, about what they are capable 6 , and about the roles they play. People with good self-images like themselves, and they are 7 like others. Having a good self-image is based 8 a realistic 9 of one's own worth and value and capabilities.
Stress is an unavoidable, necessary, and potentially healthful 10 of our society. People of all ages 11 stress. Children begin to 12 stress during prenatal development and during childbirth. Examples of stress inducing 13 in the life of a young person are death of a pet, pressure to 14 academically, the divorce of parents, or joining a new youth group. The different ways in which individuals 15 to stress may bring healthful or unhealthy results. One person experiencing a great deal of stress may function exceptionally well 16 another may be unable to function at all. If stressful situations are continually encountered, the individual's physical, social, and mental health are eventually affected.
Satisfying social relations are vital to 17 mental and emotional health. It is believed that in order to 18 , develop, and maintain effective and fulfilling social relationships people must 19 the ability to know and trust each other, understand each other, influence, and help each other. They must also be capable of 20 conflicts in a constructive way.
1. A. unstable B. unsure C. imprecise D. impractical
2. A. normally B. generally C. virtually D. necessarily
3. A. on B. at C. to D. with
4. A. signify B. influence C. predict D. mark
5. A. intellectual B. sensual C. spiritual D. mental
6. A. to be doing B. with doing C. to do D. of doing
7. A. able better to B. able to better C. better to able D. better able to
8. A. on B. from C. at D. about
9. A. assessment B. decision C. determination D. assistance
10. A. ideality B. realization C. realism D. reality
11. A. occur B. engage C. confront D. encounter
12. A. tolerate B. sustain C. experience D. undertake
13. A. evidence B. accidents C. adventures D. events
14. A. acquire B. achieve C. obtain D. fulfill
15. A. respond B. return C. retort D. reply
16. A. why B. when C. while D. where
17. A. sound B. all瞨ound C. entire D. whole
18. A. illuminate B. enunciate C. enumerate D. initiate
19. A. access B. assess C. process D. possess
20. A. resolving B. saluting C. resolving D. solving
SectionⅡ Reading Comprehension
Part A
Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D盡ark your answers on ANSWER SHEET 1保40 points）
Text 1
As we have seen in earlier chapters, the American definition of success is largely one of acquiring wealth and a higher material standard of living. It is not surprising, therefore, that Americans have valued education for its monetary value. The belief is wide spread in the United Statesthat the more schooling people have, the more money they will earn when they leave school. The belief is strongest regarding the desirability of an undergraduate university degree, or a professional degree such as medicine or law following the undergraduate degree. The money value of graduate degrees in “nonprofessional” fields such as art, history, or philosophy is not as great.
This belief in the monetary value of education is supported by statistics on income. Ben Wattenberg, a social scientist, estimated that in the course of a lifetime a man with a college degree in 1972 would earn about￥380 000 more than a man with just a high school diploma. Perhaps this helps to explain survey findings which showed that Americans who wished they had led their lives differently in some way regretted most of all that they did not get more education.
The regret is shared by those who have made it to the top and by those who have not. Journalist Richard Reeves quotes a black worker in a Ford automobile factory.
When I was in the ninth grade, I was getting bad grades and messing around. My father came home in the kitchen one night with a pair of Ford work pants and he threw them in my fac” “Put these on,” he said, “because you're going to be wearing them the rest of your life if you don't get an education.”
Douglas Fraser, the pr