Ⅰ听力测试。
第一节：情景反应。
听一遍。根据你所听到的句子，从A、B、C三个选项中选出最恰当的答语，并把答题卡上对应题目的标号涂黑。
1 Wish you merry Christmas,my kids!
2May I speak to Mr.Brown?
3What’s the weather like in Chong Qing today ?
4She will go for a holiday in London.
5Why don’t w e play soccer tomorrow morning?
6Are we supposed to be here at 7?
第二节：对话理解。
听一遍。根据你所听到的对话和问题，从A、B、C三个选项中选出中却答案，并把答题卡上对应题目的答案标号涂黑。
7W: You look tired. You worked too much.
M: I went to a party last night. It didn’t end till two o’clock in t he morning.
Q: What can we know from the talk?
8W: What time does your bus leave for the office in the morning?
M: It leaves at 6:30, except on Fridays. It leaves thirty minutes earlier on Fridays.
Q: What time does the man’s bus leave on Fridays?
9W: You always seem to be busy at the office and work late.
M: That’s true, but the work is great fun.
Q: How does the man feel about his work?
10M: How do you like this new coat I just bought?
W: I can’t understand why you need another one, you just bought one last month. Q: What does the woman mean?
11m:I missed the bus again because I turn the alarm clock off in my sleep.i don’t know what to do. w: try putting it far away from your bed.
Q: what does the woman suggest the man do?
12W: How was yesterday’s football game?
M: Oh, they play so poorly that my friend and I left at half time.
Q: How did the man like the football game?
第三节
听两遍。根据你所听到的长对话，从A、B、C 三个选项中选出正确答案。
听一段材料，回答第13和14小题
M: Hi, Joy. Would you like to help protect the environment?
W: l don't know. What can I do?
M: Well, first, you can start by turning off the lights.
W: Yes. That's easy. What's next?
M: Second, you can ride a bike. Don't take a bus or a taxi if you don't have to.
W: That will save money, too. What else?
M: Try to recycle paper.
W: Mm, newspapers, magazines... We get a lot of paper at home. Good idea.
M: And the last way is using paper or cloth bags instead of plastic ones.
W: OK. My parents do most of the shopping. I'll tell them.
听二段材料，回答第15和16小题
M:Gina, Mr Ma will give a talk in the City library next week. Would you like to go with me? W: Who is Mr Ma ?
M: Oh, he is the manager of a big computer company. You said you were interested in computers.
W: Yes, I like it very much. I have learned it since last year, and l want to be a computer engineer. M: I'm sure your dream will come true.
W: Thank you!
第四节：短文理解。
听两遍。根据你所听到的短文内容，从A、B、C三个选项中选出正确答案，并把答题卡上对应题目的答案标号涂黑。
One evening two young men were walking in the street together. They tried to find a chance to steal something. The clock struck twelve. Most of the people went to bed. Quickly they came to a house and it seemed that everyone in the house had fallen asleep. Standing at the front gate, one said in English to the other in a low voice, “ You wait here. I’ll go around to the back door and then get into the house.” Suddenly a dog ran out of the house and barked at them. The two men were very frightened and ran away as fast as they could. Finally, they stopped at a lonely place. The man said breathlessly, “It’s too bad. I hadn’t expected that the dog could understand English.”
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1.My favorite are singing and dancing. 2.I stayed at home and a film on TV yesterday. 3.I usually surf the internet in my time. 4.My brother likes in the river. 5.Don’t fish or swim in the . 6.I like having with my friends at the weekend. We will have a at the park tomorrow. 7.My sister likes very much. 8.The film is ,I don’t like it. 9.I bought a at the gift shop yesterday. 10.I like playing with my brother. 11.I am going to the Children’s . 12.I like playing the . 13.My sister likes to music very much. I to music at home yesterday. 14.I think playing chess is .
1.My dad cleaned the this morning. There is a new in the kitchen. 2.How the room is! What a ! Please clean the kitchen. I don’t like this kitchen. My mum was unhappy because my room is . 3.How your clothes are! 4.We should have habbits. My mum always makes food for us. 5.Look at the sink, it was , but it’s now. 6.My mum was because my room is messy.
三年级英语听力测试 一、听单词，从每小题所给的 A B C 三个选项中选出你所听到的单词，并将答案标号 写在题前括号 内。每个单词读两遍。（10分） A B C D E F G H I J 三、听句子，从每小题所给的A 、B 、C 三个选项中选出你所听到的句子，并将答案标号 写在题前括号 内。每个句子读两遍。(5分) ()1 、A 、What' s your favourite song? B What' s your favourite letter? C 、What' s your favourite book? ()2 、A 、What' s this? B 、What ' s that? ( )1 、A meat B cat C fat ( )2 、A like B kite C bike ( )3 、A short B tall C small ( )4 、A this B that C they ( )5 、A apple B banana C pear ( )6 、A favourite B orange C elephant ( )7 、A thin B milk C lio n ( )8 、A hand B head C red ( )9 、A eleven B seven C prese nt ( )10 、A fine B fish C rice —- .、听单词，选出每小题中你所听到单词对应的图片 框内。每个单词读两遍。（10分） ，并将答案标号写在题号下面的方
CC What are they? ()3 、A、Please pass me the rice. B 、Please pass me the meat. C、Please pass me the noodles.
传感器原理及其应用 一、简答题（30分，6分/题） 1. 传感器的定义和组成框图.画出自动控制系统原理框图并指明传感器在系统中的位置 和作用。 答：传感器是能感受规定的被测量并按照一定规律转换成可用输出信号的器件或装置传感器。通常由直接响应于被测量的敏感元件和产生可用信号输出的转换元件以及相应的信号调节转换电路组成。 传感器处于研究对象与测试系统的接口位置，即检测与控制之首。传感器是感知、获取与检测信息的窗口，一切科学研究与自动化生产过程要获取的信息都要通过传感器获取并通过它转换成容易传输与处理的电信号，其作用与地位特别重要。 2. 从传感器的静态特性和动态特性考虑，详述如何选用传感器。 答：考虑传感器的静态特性的主要指标，选用线性度大、迟滞小、重复性好、分辨力强、稳定性高、抗干扰稳定性高的传感器。考虑动态特性，所选的传感器应能很好的追随输入量的快速变化，即具有很短的暂态响应时间或者应具有很宽的频率响应特性。 3. 直流电桥和交流电桥有何区别？直流电桥的平衡条件是什么？应变片式电阻传感 器、自感式、互感式、涡流式、电容式、热电阻式传感器分别可采用哪种电桥作为测量电路？ 答：根据电源不同分为直流和交流电桥。直流电桥优点：高稳定度直流电源容易获得，电桥平衡电路简单，传感器至测量仪表的连接导线分布参数影响小。但是后续要采用直流放大器，容易产生零点漂移，线路也较复杂。交流电桥在这些方面都有改进。直流电桥平衡条件：R1/R2=R3/R4，R1R4=R2R3。 4. 光电效应可分为哪三种类型，简单说明其原理并分别列出以之为基础的光电传感器。 答：当用光照射物体时，物体受到一连串具有能量的光子的轰击，于是物体材料中的电子吸收光子能量而发生相应的电效应（如电阻率变化、发射电子或产生电动势等）。这种现象称为光电效应。光电传感器的工作原理是基于物质的光电效应，目前所利用的光电效应大致有三大类：第一类是利用在光线作用下材料中电子溢出表面的现象，即外光电效应，光电管以及光电倍增管传感器属于这一类；第二类是利用在光线作用下材料电阻率发生改变的现象，即内光电效应。光敏电阻传感器属于这一类。第三类是利用在光线作用下光势垒现象，即光生伏特效应，光敏二极管及光敏三极管传感器均属于这一类。 5. 光导纤维导光的原理是什么？按其传输模式分为哪两种类型？并分别指出对应类型 光纤传感器的典型光源。 答：光导纤维工作的基础是光的全内反射，当射入的光线的入射角大于纤维包层间的临界角时，就会在光纤的接口上产生全内反射，并在光纤内部以后的角度反复逐次反射，直至传递到另一端面。按其传输模式分为单模和多模.
大学英语三级全真模拟听力试题（一） Test One P art I: Listening Comprehension (15%) Section A Directions: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there will be a pause. During the pause, you must choose the best answer from the four choices marked A), B), C) and D. Then mark the corresponding letter on the Answer Sheet with a single line through the center. Example:You will hear: Where do you think the conversation most provably took place? You will read: A) At the office. B) In the waiting room. C) At the airport. D) In a restaurant. From the conversation we know that the two were talking about some work they had to finish in the evening. This is most likely to have taken place at the office. Therefore, A) “At the office” is the best answer. You should choose [A] on the Answer Sheet and mark it with a single line through the center. Sample Answer [A] [B] [C] [D] 1. A) Fixing an engine. B) Repairing a car. C) Cashing a check. D) Buying some wheels. 2. A) Visit Japan. B) Cook some food. C) Travel abroad. D) Eat out. 3. A) One of a cheaper price. B) One of a different color. C) One of a fashionable style. D) One of a smaller size. 4. A) He has changed his plan. B) He has canceled his trip. C) He is arriving this afternoon. D) He forgot to arrange his trip. 5. A) They had lost their way. B) They were told it would rain. C) They were caught in the rain. D) They had taken an umbrella.
2012年天津高考听力试卷 试卷A 第一节（共5小题；每小题1分，满分5分） 1. Why was George at the hospital? A. His wife was sick. B. His wife just had a baby. C. He was visiting his daughter. 2. What is Robert’s occupation now? A. Novelist. B. Reporter. C. Secretary. 3. What does the man plan to do in five years? A. To leave the company. B. To manage the company. C. To start his own company. 4. What does the woman imply? A. She doesn’t appreciate John’s humor. B. She used to understand John’s humor. C. She doesn’t have any sense of h umor. 5. What is the man’s reaction to the woman’s words? A. Anger. B. Impatience. C. Surprise. 第二节（共10小题；每小题1.5分，满分15分） 听下面一段对话，回答第6至第8小题。 6. What are the speakers talking about? A. The cause of their discomfort. B. The taste of the food. C. The division of housework. 7. What did they both eat? A. Meat, fish and soup. B. Fish, meat and pears. . C. Soup, pears and meat.
一、填空（30分，每空1.5分） 1、有一温度计，它的量程范围为0∽200℃，精度等级为0.5级。该表可能出现的最大误差为，当测量100℃时的示值相对误差为。 2、在选购线性仪表时，必须考虑应尽量使选购的仪表量程为欲测量的 倍左右为宜。 3、传感器由、、三部分组成。 4、利用热敏电阻对电动机实施过热保护，应选择型热敏电阻。 5、已知某铜热电阻在0℃时的阻值为50Ω，则其分度号是，对 于镍铬-镍硅热电偶其正极是。 6、霍尔元件采用恒流源激励是为了。 7、用水银温度计测量水温,如从测量的具体手段来看它属于测量。 二、选择题(30分，每题2分) 1、在以下几种传感器当中属于自发电型传感器。 A、电容式 B、电阻式 C、压电式 D、电感式 2、的数值越大,热电偶的输出热电势就越大。 A、热端直径 B、热端和冷端的温度 C、热端和冷端的温差 D、热电极的电导率 3、将超声波（机械振动波）转换成电信号是利用压电材料的。 A、应变效应 B、电涡流效应 C、压电效应 D、逆压电效应 4、在电容传感器中，若采用调频法测量转换电路，则电路中。 A、电容和电感均为变量 B、电容是变量，电感保持不变 C、电感是变量，电容保持不变 D、电容和电感均保持不变 5、在两片间隙为1mm的两块平行极板的间隙中插入，可测得最大的容量。 A、塑料薄膜 B、干的纸 C、湿的纸 D、玻璃薄片 6、热电阻测量转换电路采用三线制是为了 A、提高测量灵敏度 B、减小非线性误差 C、提高电磁兼容性 D、减小引线电阻的影响 7、当石英晶体受压时，电荷产生在。 A、Z面上 B、X面上 C、Y面上 D、X、Y、Z面上 8、汽车衡所用的测力弹性敏感元件是。 A、悬臂梁 B、弹簧管 C、实心轴 D、圆环 9、在热电偶测温回路中经常使用补偿导线的最主要的目的是。 A、补偿热电偶冷端热电势的损失 B、起冷端温度补偿作用 C、将热电偶冷端延长到远离高温区的地方 D、提高灵敏度 10、减小霍尔元件的输出不等位电势的办法是。 A、减小激励电流 B、减小磁感应强度 C、使用电桥调零电位器 11、测得某检测仪表的输入信号中,有用信号为20毫伏,干扰电压也为20毫伏, 则此时的信噪比为。 A、20dB B、1 dB C、0 dB 12、发现某检测仪表机箱有麻电感,必须采取措施。 A、接地保护环 B、将机箱接大地 C、抗电磁干扰 13、在仿型机床当中利用电感式传感器来检测工件尺寸，该加工检测装置是采了 测量方法。 A、微差式 B、零位式 C、偏差式
Part III Practice One Ex.1. 1. ice-skating 2. chemistry 3. outgoing, bright, funny 4. moody, self-centered 5. wavy blond 6. runner-up Ex.2. 1. T 2. F 3. T 4. F 5. F 6. T Practice Two Ex.1. 1. Four 2. Colleagues 3. Teacher 4. Susan 5. Barbara Ex.2. 1) Paul D E J 2) Susan B F 3) Maria C H 4) Peter A G I Practice Three Ex.1 1. energetic 2. patient 3. honest 4. stubborn 5. creative Ex.2 1. favorite way to relax 2. how to divide 3. bad unripe 4. stiff sore 5. fastening a basketball hoop Practice Four Ex.1 1. F 2. T 3. F 4. F 5. T 1. It was easy to tell the English from the British. 2. Speaking the same language helped one Australian visitor a lot. 3. By “much nicer”, one of the visitors meant th at the British people were more friendly than people of other countries. 4. The majority of continentals thought hightly of English manners. 5. To the young student from South Africa, Britain seemed to have a lot of foreign visitors. Ex.2. 1) flattering 2) critical 3) popular 4) reserved 5) English Ex.3. 1) understand the Scots’ English 2) the friendliest people 3) most hospitable 4) much nicer than 5) English courtesy 6) no views on the matter/no comments. Unit 3 Part III Practice One Ex.1. 1. natural riches 2. desert 3. extinction 4. species 5. oxyen 6. economic development 7. conservation 8. valuable income 9. awareness 10. slow down
英语听力/模拟试题 英语听力mp3下载试题及答案 第一节（共5小题） 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。 1.What is the man? A.A salesman. B.A fisherman. C.A repairman. 2. How long is the post office open on Saturdays? A.For 3 hours. B.For 5 hours. C.For 8 hours. 3.Why can’t the woman play her records? A.Because she’s broken them. B.Because she’s left them in the cafe. C.Because she’s forgotten where she put them.
4.Where does the conversation most likely take place? A.At a department store. B.In a club. C.In the zoo. 5.What does the woman mean? A.She likes the dinner but doesn’t like the soup. B.She likes the soup but doesn’t like the dinner. C.She likes both the dinner and the soup. 第二节（共15小题） 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，各小题将给出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至8题。 6.In which country is the woman going to study? A.Australia. B.Britain. C.America.
1、已知一等强度梁测力系统， R x 为电阻应变片，应变片灵敏系数 K=2，未 受应变时，R ＜ = 100 ?。当试件受力 F 时，应变片承受平均应变 ￡ = 1000卩m/m , 求： (1) 应变片电阻变化量 ？ R ＜和电阻相对变化量？ R x /R x 。 (2) 将电阻应变片 R ＜置于单臂测量电桥，电桥电源电压为直流 3V, 求电桥输出电压及电桥非线性误差。 (3) 若要使电桥电压灵敏度分别为单臂工作时的两倍和四倍，应采取 解: (1) RX K R X R X K R X 2 1000 100 0.2() 化时，电桥输出电压为 U O (3)要使电桥电压灵敏度为单臂工作时的 2倍，则应该在等强度梁的正反面对应贴上两 个相同的应变片，一个受拉应变，一个受压应变，接入电桥相邻桥臂，形成半桥差动电桥, 且取其他桥臂电阻也为 Rx 。 1 R X 此时，U o — E - 0.003(V)，r L 0 2 R X 要使电桥电压灵敏度为单臂工作时的 4倍，则应该在等强度梁的正反面对应贴上四个相 同的应变片，2个受拉应变，2个受压应变，形成全桥差动电桥。 2、有一个以空气为介质的变面积型平板电容传感器(见下图) 。其中 a=16mm,b=24mm,两极板间距为4mm 。一块极板分别沿长度和宽度方向在原始位置 上平移了 5mm ，求： R X R X 0.2 100 0.2% (2)将电阻应变片 Rx 置于单臂测量电桥，取其他桥臂电阻也为 Rx 。当Rx 有？ Rx 的变 R X R X U O (云r i )E 3 (100 0.2 丄) 200 0.2 2 0.0015(V) 非线性误差: r L R X /2R X 1 R X /2R X 100% 0.1% 此时，U o R X R X 0.006(V)，r L 0
Unit 1 Parents Part B Listening Tasks Passage 1 Dating with My Mother (Part One) Exercise 1 Listen to the recording and choose the right answers to the questions you hear. After 22 years of marriage,I have discovered the secret to keep love alive in my relationship with my wife, Peggy. I started dating with another woman. It was Peggy's idea. One day she said to me, "Life is too short, you need to spend time with the people you love. You probably won't believe me, but I know you love her and I think that if the two of you spend more time together, it will make us closer." The "other" woman my wife was encouraging me to date is my mother, a 72-year-old widow who has lived alone since my father died 20 years ago. Right after his death, I moved 2,500 miles away to California and started my own life and career. When I moved back near my hometown six years ago, I promised myself that I would spend more time with mom. But with the demands of my job and three kids, I never got around to seeing her much beyond family get-togethers and holidays. Mom was surprised and suspicious when I called and suggested the two of us go out to dinner and a movie. "What's wrong?" she asked. "I thought it would be nice to spend some time with you," I said. "Just the two of us." "I would like that a lot," she said. When I pulled into her driveway, she was waiting by the door
Module 1 Unit 1 同步验收练习参考答案Part 1听力部分录音原文及参考答案: I. 1. These are my family and relatives. 2. This is a birthday card from Tom. 3. I have two sisters. They are twins. 4. I usually go shopping with my mother. 5. That is a photo of my brother. 6. Kitty has got a lot of presents from her parents. (1—6 BFEADC) II. 7. M: What’s this, Alice? W: It’s my family tree. M: Who are those two men? W: They are my uncles. Q: How many uncles does Alice have? 8. M: Who is the old woman? W: She’s Mary’s grandmother. M: How old is she? W: About 60. Q: How old is Mary’s grandmother? 9. W: Mike has got two birthday presents. M: Oh? Who are they from? W: They are from his mother and father. M: Has he got anything from his relatives? W: No, he hasn’t. Q: What has Mike got now? 10. M: Who are these birthday cards from? W: My grandmother and grandfather. M: Are those red cards from your grandparents, too? W: No, they are from my aunt and uncle. Q: Who are the red birthday cards from? 11. M: How many uncles do you have? W: I have two. How many uncles do you have? M: I have two, too. W: Do they usually play games with you? M: Sometimes do and sometimes don’t. Q: What are they talking about? 12. W: Do you know that girl under the tree? M: Which one? W: The one in a red skirt.
三年级英语听力测试 一、听单词，从每小题所给的A、B、C三个选项中选出你所听 到的单词，并将答案标号写在题前括号内。每个单词读两遍。（10 分） ( )1、A meat B cat C fat ( )2、A like B kite C bike ( )3、A short B tall C small ( )4、A this B that C they ( )5、A apple B banana C pear ( )6、A favourite B orange C elephant ( )7、A thin B milk C lion ( )8、A hand B head C red ( )9、A eleven B seven C present ( )10、A fine B fish C rice 二、听单词，选出每小题中你所听到单词对应的图片，并将答 案标号写在题号下面的方框内。每个单词读两遍。（10分） 题号 1 2 3 4 5 6 7 8 9 10 答案 A B C D E
F G H I J 三、听句子，从每小题所给的A、B、C三个选项中选出你所听 到的句子，并将答案标号写在题前括号内。每个句子读两遍。（5 分） ( )1、A、What’s your favourite song? B、What’s your favourite letter? C、What’s your favourite book? ( )2、A、What’s this? B、What’s that? C、What are they? ( )3、A、Please pass me the rice. B、Please pass me the meat. C、Please pass me the noodles. ( )4、A、This monkey is small and thin. B、This tiger is big and fat. C、This man is tall and fat. ( )5、A、Do you like basketball? B、Does he like basketball? C、Does she like basketball? 四、听句子，从每小题所给的A、B、C三个选项中选取出你所听到句子的 恰当答语，并将答案标号写在题前括号内。每个句子读两遍。（10分） ( )1、A、It’s a kite. B、It’s an apple . C、They are monkeys. ( )2、A、Yes,I am. B、Yes,she does. C、Yes,I do. ( )3、A、It’s a bike. B、It’s green. C、Thank you. ( )4、A、Yes,she is. B、Yes,she does. C、No, he doesn’t. ( )5、A、Green. B、English. C、Elephant
传感器试卷及答案 It was last revised on January 2, 2021
传感器原理与应用试题答案（一）一填空（在下列括号中填入实适当的词汇，使其原理成立 5分） 1．用石英晶体制作的压电式传感器中，晶面上产生的电荷与作用在晶面上的压强成正比，而与晶片几何尺寸和面积无关。 2．把被测非电量的变化转换成线圈互感变化的互感式传感器是根据变压器的基本原理制成的，其次级绕组都用同名端反向形式连接，所以又叫差动变压器式传感器。 3．闭磁路变隙式电感传感器工作时，衔铁与被测物体连接。当被测物体移动时，引起磁路中气隙尺寸发生相对变化，从而导致圈磁阻的变化。4．电阻应变片是将被测试件上的应变转换成电阻的传感元件。 5．影响金属导电材料应变灵敏系数K。的主要因素是导电材料几何尺寸的变化。 评分标准：每填一个空，分，意思相近2分。 二选择题（在选择中挑选合适的答案，使其题意完善每题4分） 1．电阻应变片的线路温度补偿方法有（）。 A．差动电桥补偿法 B．补偿块粘贴补偿应变片电桥补偿法 C．补偿线圈补偿法 D．恒流源温度补偿电路法 2．电阻应变片的初始电阻数值有多种，其中用的最多的是（B）。A．60ΩB．120Ω C．200Ω D．350Ω 3．通常用应变式传感器测量（BCD）。
A ．温度 B ．速度 C ．加速度 D ．压力 4．当变间隙式电容传感器两极板间的初始距离d 增加时，将引起传感器的（B,D ）。 A ．灵敏度增加 B ．灵敏度减小 C ．非统性误差增加 D ．非线性误差减小 5．在光线作用下，半导体的电导率增加的现象属于（BD ）。 A ．外光电效应 B ．内光电效应 C ．光电发射 D ．光导效应 评分标准： 3\4\5题回答对一个2分，1题（）回答对一个2分，两个3分，2题（B ）不对没有得分。 三、回答下列问题（每题5分，答出原理3分，说明2分） 1．为什么1/2桥能提高灵敏度，减小非线性；利用桥路中相邻臂电阻变化相反，对邻臂电阻变化相同的特点，将两个工作应变片接入电桥的相邻臂，并使它们一个受拉，另一个受压，如图所示，称为半桥差动电桥，半桥差动电桥电路的输出电压为 评分标准： 说明出划线部分的重点意思得分，回答完整2分 写出平衡条件：1分 设平衡时R 1=R 2=R 3=R 4=R ， 又ΔR 1=ΔR 2 =ΔR 则 得证结论：2分 R R U U ?= 2E L （a ）半桥差动；（b ）全桥差动
英语听力模拟试题、听力原文及答案 第一节听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出选项，并标在试卷的相对应位置。听完每段对话后，你都有10秒钟的时间来回答相关小题和阅读下一小题。每段对话 仅读一遍。 1. When does this conversation take place? A. At 5：00. B. At 5：15. C. At 4：45. 2. Who has taken the stamps? A. The woman. B. The woman’s sister. C. The man’s classmates. 3. How long will the man stay in this hotel? A. Just one month. B. 32 days. C. 34 days. 4. Where does the conversation take place? A. In a post office. B. In a hotel. C. In a bank 5. What does the man mean? A. He went mountain climbing last year. B. He doesn’t want to go at all. C. He hasn’t traveled around the world yet. 第二节听下面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三个选项中选出选项，并标在试卷的相对应位置。听每段对话前，你将有时间阅读各个小题，每小题5秒钟;听完后，各小题将给出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。
一、填空（ 30 分，每空分） 1、有一温度计，它的量程范围为 O s200C，精度等级为级。该表可能出现的最 大误差为，当测量1OO°C时的示值相对误差为。 2、在选购线性仪表时，必须考虑应尽量使选购的仪表量程为欲测量的 倍左右为宜。 3、传感器由、、三部分组成。 4、利用热敏电阻对电动机实施过热保护，应选择型热敏电阻。 5、已知某铜热电阻在O C时的阻值为50Q,则其分度号是，对 于镍铬 - 镍硅热电偶其正极是。 6、霍尔元件采用恒流源激励是为了。 7、用水银温度计测量水温 , 如从测量的具体手段来看它属于测量。 二、选择题（3O 分，每题 2 分） 1、在以下几种传感器当中属于自发电型传感器。 A 、电容式 B 、电阻式 C 、压电式 D 、电感式 2、的数值越大 , 热电偶的输出热电势就越大。 A、热端直径 B 、热端和冷端的温度 C、热端和冷端的温差 D 、热电极的电导率 3、将超声波（机械振动波）转换成电信号是利用压电材料的。 A、应变效应 B、电涡流效应 C、压电效应 D、逆压电效应 4、在电容传感器中，若采用调频法测量转换电路，则电路中。 A、电容和电感均为变量 B 、电容是变量，电感保持不变 C、电感是变量，电容保持不变 D、电容和电感均保持不变 5、在两片间隙为1mm勺两块平行极板的间隙中插入，可测得最大的容量。 A、塑料薄膜 B、干的纸 C、湿的纸 D、玻璃薄片 6、热电阻测量转换电路采用三线制是为了 A、提高测量灵敏度 B 、减小非线性误差 C、提高电磁兼容性 D 、减小引线电阻的影响 7、当石英晶体受压时，电荷产生在。 A、Z面上 B、X面上 C、Y面上 D、X、Y、Z面上 8、汽车衡所用的测力弹性敏感元件是。 A、悬臂梁 B 、弹簧管 C、实心轴 D、圆环 9、在热电偶测温回路中经常使用补偿导线的最主要的目的是。 A、补偿热电偶冷端热电势的损失 B 、起冷端温度补偿作用 C、将热电偶冷端延长到远离高温区的地方 D、提高灵敏度
2009年12月 Section A 11. A) They would rather travel around than stay at home. B) They prefer to carry cash when traveling abroad. C) They usually carry many things around with them. D) They don’t like to spend much money on traveling. 12. A) The selection process was a little unfair. B) He had long dreamed of the dean’s position. C) Rod was eliminated in the selection process. D) Rod was in charge of the admissions office. 13. A) Applause encourages the singer. B) She regrets paying for the concert. C) Almost everyone loves pop music. D) The concert is very impressive. 14. A) They have known each other since their schooldays. B) They were both chairpersons of the Students’ Union. C) They have been in close touch by email. D) They are going to hold a reunion party. 15. A) Cook their dinner. B) Rest for a while. C) Get their car fixed. D) Stop for the night. 16. A) Newly-launched products. B) Consumer preferences. C) Survey results. D) Survey methods. 17. A) He would rather the woman didn’t buy the blouse. B) The woman needs blouses in the colors of a rainbow. C) The information in the catalog is not always reliable. D) He thinks the blue blouse is better than the red one. 18. A) The course is open to all next semester. B) The notice may not be reliable. C) The woman has not told the truth. D) He will drop his course in marketing. Questions 19 to 22 are based on the conversation you have just heard. 19. A) A director of a sales department. B) A manager at a computer store. C) A sales clerk at a shopping center. D) An accountant of a computer firm. 20. A) Handling customer complaints. B) Recruiting and training new staff. C) Dispatching ordered goods on time. D) Developing computer programs. 21. A) She likes something more challenging.
2015年天津高考英语听力试题、答案及听力原文
绝密★启用前 2015年普通高等学校招生全国统一考试（天津卷） 英语听力参考答案 试卷A： 1. B 2. C 3. C 4. A 5. B 6. A 7. C 8. B 9. C 10. B 11.A 12.A 13.B 14.C 15.A 试卷B： 1. B 2. B 3. C 4. A 5. C 6. B 7. A 8. C 9. C 10. A 11.C 12.B 13.A 14.C 15.A 2015年普通高等学校招生全国统一考试（天津卷） 英语听力录音文字材料 试卷A 这是2015年普通高等学校招生全国统一考试天津卷英语科听力部分。该部分由试卷A和试卷B 两套试卷组成，每套试卷各分为两节。 注意：回答听力问题时，请先将答案标在试卷上。每套试卷考试结束前，你将有两分钟的时间将答案转涂到答题卡的对应位置上。 这是普通高等学校招生全国统一考试天津卷英语科听力部分第一套试卷。 现在是听力试音时间。该部分材料读两遍。W：M ichael, I heard your jazz band is going to be playing at the Student Center, and I’m just calling to let you know I’ll be there. M：O h, thanks, but I’m not in the band any more. In fact, I’m not in a group at all right now. W：T hat’s too bad－you’re such a talented musician. Why did you leave the group? M：I just couldn’t be a full-time student and still 第 2 页共 11 页