实验9-改错题

汽轮机实际操作部分改错题宝安厂1.冷油器出口油压低是由于冷油器出口油温低造成的。

改正：冷油器出口油压低不是由于冷油器出口油温低造成的。

2.冷油器运行中需要保持水侧压力大于油测压力，以保证当铜管泄漏时油不会漏入水内。

改正：冷油器运行中需要保持油测压力大于水侧压力，以保证当铜管泄漏时水不会漏入油内。

3.溢油阀装在冷油器进口油管道上，其作用是保持润滑油压稳定。

改正：溢油阀装在冷油器出口油管道上，其作用是保持润滑油压稳定。

4.超速实验时调门若大幅度摆动应立即停止实验降转速至3000 r/min。

改正：超速实验时调门若大幅度摆动应立即停止打闸停机。

5.汽轮机调速系统的任务就是跟踪负荷变化，满足外界对负荷的即时要求。

改正：汽轮机调速系统的任务就是使汽轮机的输出功率与外界负荷保持平衡。

6.当汽轮机调速系统工作不良，使机组出力负荷摆动，当负荷向升高方向摆动时，主汽门后的压力指示降低。

改正：当汽轮机调速系统工作不良，使机组出力负荷摆动，当负荷向升高方向摆动时，调节汽门后的压力指示降低。

7.油箱排烟风机的作用就是将油箱中分离出的空气和其他气体排出油箱。

改正：油箱排烟风机的作用就是将油箱中分离出的水蒸气和其他气体排出油箱。

8.汽轮机运行中当凝汽器管板脏污时真空下降排汽温度升高，循环水出入口温差减小。

改正：汽轮机运行中当凝汽器管板脏污时真空下降排汽温度升高，循环水出入口温差增大。

9.自动主汽门的作用是：在正常或事故停机时调节和分配汽轮机的进气量。

改正：自动主汽门的作用是：在正常或事故停机时截断汽轮机的进汽气量。

10.自动主汽门活动试验的目的是检查主汽门是否卡死。

改正：自动主汽门活动试验的目的是检查主汽门是否卡涩，使甩负荷后不能迅速关闭。

11.汽轮机在运行中的负荷是由主汽门的开度决定的。

改正：汽轮机在运行中的负荷是由调节汽门的开度决定的。

12.汽轮机启动中暖机的目的是为了提高金属部件的温度。

改正：汽轮机启动中暖机的目的是为了缩小上下缸的温差。

英语句子改错英语句子改错题目（一）：在下面的句子，每句仅有一个错误，在错的地方作出标记，并将改正后的词写在句后的横线上。

1、Have you gone to America before？2、Is there new anything in this talk？3、Neither Ann nor I are a League member。

4、We are surprise that he lost the game。

5、Most great artists like making own train。

6、Hurry up，and you won’t catch the train。

7、I think this song is most popular of all。

8、Mr Hu got up until ten o’clock yesterday。

9、What a interesting book !Do you like it ?10、This story is not so longer as that one。

11、It’s a long time since we have met last。

12、What’s wrong with you ?You look unhappily。

13、Mrs Smith found that difficult to study English well。

14、There is little water in the glass，isn’t there ?15、The boys were playing with fire when he es in。

16、The traffic accident was happened around the corner last week。

17、Please show we the picture that you drew yesterday。

九年级英语改错题专练下列每篇文章中一共有九处错误，请找出并更正。

Mary is my best friend. We’re all from Henan, but now I live in Beijing when she lives in Guangzhou. We don’t look each other very often, but we’re keep in touch all the time. I often write to Mary and telling her about the things that are happened at my company, and she often writes to me about her work. We talk on phone once a week. Sometime I call her on her car phone, or we send e-mail to each oth er. We’re really luck. There are so many ways we can keep in touch with each other.We’ve just moved in a house and we want to buy a new color television set, and I’m not sure about a size. Maybe we should buy a big one. If we buy a small one, we might have to change for it in a few years’ time for a bigger one. My husband thinks it’s no necessary to buy a very big one. He said our sitting room isn’t very big. If we put in a very big television, they will be bad for our eyes. Anyway, we’d better to make quick decision because the price may go up soon.I live in the country and my father was a farmer. He is now forty-five year old. Because of years of hard work, he looks old than his age. When I was young, he is used to tell me the importance of study. Father knows little about English and other subjects, but he usually gives me some good advices on how to learn my lessons good. He is not only kind to me but also very strict in me. With his help, I’ve made great progress. I’ll never to forget what he ta ught me.I think my father is best father in the world.Thank you for your offer invite me to the free summer English course in your school. As for my choice of the two courses, I’d prefer the five-weeks course for 50 hours. This would allows me more time to see your beautiful country while learned language. I’d like to do some traveling and make a few new friends. In all the subjects I’m learning at school, I like English best. I hope me to take this chance to improve my spoken English level as much as possibly.I believe I will have a wonderful time in England this summer.I have come in China for two years. My friends in England sometimes write to me, ask me how long I’ll stay here, when I’m thinking of returning home. The answer of their questions is simple: I do not know when I return home. At the moment,I have no reason to return back to England. I like living in China; I enjoy meeting Chinese people and travel around the country. My work is very interested, and there are so many things I don’t know about China that I hope to discover it in the future.文章改错1． Old Sarah was a strange rich woman. He did not 1. ________ hope to see any of her relative. She felt what they 2. ________ were interested in was her money. She was all right 3. ________ After she died, the relatives got together to hear Sarah's 4. ________ lawyer(律师) to read her will (遗嘱). They were sure that 5. ________ Sarah had left many money and they quarreled strongly 6. ________with each other when they waited the lawyer to arrive. 7. ________ After the lawyer came in the living room, he asked them 8. ________to sit down. He began to read the will in a seriously 9. ________ voice. Sarah has left all her money to her cats. 10. ________ 2． Mr Green come from England . 1. _________He teaches English in middle school . 2. _________He can speak some Chinese. He 3. ________goes at Chinese classes very week . 4. __________He likes working in Chinese very much . 5. _________3． Have you ever wanted to write a song? Two Sister. 1._________ Mildred and Patty Hill, once write a little song. 2._________ It was a happily song that they loved to sing. It 3._________ was calling "Good Morning to You. "However, most 4._________ other people didn't know the song very well. A day, 5._________ Mildred and Patty had a idea. It turned out (证明) to be 6._________ a very bad idea. They changed the words of the song. They 7.__________ called the new song "Happy Birthday to You." Theirs short 8._________birthday song is now very famous. Almost every body know 9.__________ the words, Did anyone sing it at your test birthday party? 10.__________ 4. Hundred of years ago, news was carded by 1. _____________ people on foot or by a horse. It took a long 2. _____________ time people to receive news. Now it is possible 3. _____________ to send words and pictures in seconds. Billions of 4. _____________ people learn about news either by watching TV and by reading. 5. ____________5. Yesterday I went for shopping for shoes. The largest pair 1.I could find was an size 9 and I wear an 11! Everyone 2.said they'd never heard of a size such big. All the people 3. in the shop were laughing me. They said they were very 4.surprised by my foot, but I found it so funny. 5.6. An international school has many students coming from all different part of the world. There 1. are not Chinese students at international schools. 2.Most of the schools teach English and use English 3.textbooks. Students do not have much exams. 4.But they do have a lot of homeworks. 5.7. My mother has done so much for me! She always get 1.up early in the morning to make me for breakfast . 2.And she often wakes up at the middle of the night to 3.see I’m sleeping well. Once, when I was ill, I couldn’t eat. 4.Mum was so worried that she wouldn’t eat, too. 5. 8. I think it's a good idea to practise English with foreigners. When we talk English to them , we have to forget our own 1. language. Through talking, we can improve our pronunciation.2. We can also learn many useful phrase and about western 3. culture. Practising English on voice chatting system is real easy.4.Since we don't talk face to face, we needn’t to be afraid of 5.making mistakes. Even the shyest person will feel free to talk.9． (1) When Bill Gates was young, he spent a lot of time developing computerprogrammes, doesn't he? __________(2) ——Brown trousers are very popular this spring.——Would you like to try it on?__________(3) What interesting the film "Harry Potter" is!__________(4) You'd better not to read in poor light. It's bad for your eyes._______(5) Beijing is changing fast. There will have more and more new parks and high buildings in the future. (1) We can see lots of sheeps on the hill. _______ (2) They flying kites in the park now. ________ (3) The twins are good to maths. ________ (4) There will have a class meeting next Monday afternoon. _______10． 1. The eggs were lay long long ago by dinosaurs. _______2. Mr Brown arrived in Beijing early in a Thursday morning. _______3. I didn't spend all the money. I brought some of them back again.4. How much is the number of the car? _______5．The more he thought about it ，the more angrily he grew ．_______6．She was listening carefully to the teacher when she spoke to inclass ．_______7．He has left his hometown in Hebei for more than two years ． _______8．Whom do you think knows the answers to the questions ？_______ 9．Mother often tells me not to buy anything I needn't ． _______ 10．A lot of good land has gone with the forests ，left only sand ．_______ Ⅰ. 下列各题有一处是错的，请划出并将改正后的词写在句后的括号内。

数学改错练习题1. 请根据下列计算题，找出并改正题目中的错误。

(1) 912 ÷ 6 = 152(2) 28 × 9 = 198(3) 78 - 58 = 15(4) 35 ÷ 7 = 7(5) 123 + 456 = 5482. 解析并改正错题：(1) 错误答案：912 ÷ 6 = 152解析：正确答案应该是912 ÷ 6 = 152改正后的解答：912 ÷ 6 = 152(2) 错误答案：28 × 9 = 198解析：正确答案应该是28 × 9 = 252改正后的解答：28 × 9 = 252(3) 错误答案：78 - 58 = 15解析：正确答案应该是78 - 58 = 20改正后的解答：78 - 58 = 20(4) 错误答案：35 ÷ 7 = 7解析：正确答案应该是35 ÷ 7 = 5改正后的解答：35 ÷ 7 = 5(5) 错误答案：123 + 456 = 548解析：正确答案应该是123 + 456 = 579改正后的解答：123 + 456 = 5793. 猜一猜错误出现在哪里(1) 43 × 7 = 49正确答案：43 × 7 = 301(2) 268 ÷ 8 = 36正确答案：268 ÷ 8 = 33.5(3) 78 - 49 = 54正确答案：78 - 49 = 29(4) 15 × 7 = 88正确答案：15 × 7 = 105(5) 220 ÷ 20 = 10正确答案：220 ÷ 20 = 114. 总结通过以上改错练习题，我们发现在进行数学计算时，错误是很常见的。

有时是因为马虎大意，有时是因为对某个知识点掌握不够。

但是，关键是我们应该从错误中学习并加以改正。

仔细审题、理解题意，确保计算过程正确，这对于提高数学能力至关重要。

九年级英语改错题30道1. I have seen this film yesterday. （答案：把have seen 改为saw，yesterday 是过去的时间，要用一般过去时）2. She is often come to school early. （答案：把is 去掉，come 是动词，不能和be 动词连用，often 表示经常，用一般现在时）3. They didn't went to the park last Sunday. （答案：把went 改为go，didn't 后面用动词原形）4. What did you doed last night? （答案：把doed 改为do，did 后面用动词原形）5. He plays football every day, but he doesn't play it yesterday. （答案：把plays 改为played，yesterday 是过去的时间，要用一般过去时）6. I have many book on the shelf. （答案：book 应改为books，many 修饰可数名词复数）7. She is very good in English. （答案：in 应改为at，be good at 是固定短语，意为“擅长”）8. Can you tell me how get there? （答案：get 应改为to get，how to do sth. 是固定用法）9. We enjoy to play football. （答案：to play 应改为playing，enjoy doing sth. 是固定搭配）10. He is busy to do his homework. （答案：to do 应改为doing，be busy doing sth. 意为“忙于做某事”）11. There have many books on the shelf. （答案：have 应改为are 。

初三英语短文改错试题答案及解析1.【1】Be quick ! Someone arewaiting for you at the school gate . ( )__________A B C D【答案】B错误，改为is。

【解析】不定代词做主语看做单数，故B错误，改为is。

【2】I can’t see the words on the blackboard clear. ( )_________A B C D【答案】D错误，改为clearly.【解析】副词修饰动词，根据句意，我看不清黑板上的单词，故D错误，改为clearly.【3】 It took my three daysto finish the work. ( )_________A B C D【答案】B错误，改为me.【解析】动词和介词后加人称代词的宾格形式，故B错误，改为me.【4】 Playing computer games are bad for your eyes. ( )_________A B C D【答案】B错误，改为 is.【解析】动名词或动名词短语做主语看做单数，故B错误，改为 is.【5】It’s twenty minute’s walk from here to the park.( )________A B C D【答案】B错误，改为minutes’【解析】二十分钟是复数，所以在S后加撇。

故B错误，改为minutes’【6】 Can't you remembertell me that the other day? ( )________A B C D【答案】A错误，改为couldn’t【解析】过去的时间，所以用过去时态，故A错误，改为couldn’t【7】 Would you please speaksomethingabout your family?( )________A B C D【答案】B错误，改为say.【解析】请说一些关于你的家庭的事情好吗？speak,讲，不及物动词，say,说，及物动词，后加说的内容，故B错误，改为say.【8】The populationof Zhengzhou is fewer than that of Beijing. ( )________A B C D【答案】C错误，改为smaller.【解析】广东的人口比北京的人口少，说人口的多少用big,small.,故C错误，改为smaller.【9】Not hadstudied his lessons well, he failed in the exam. ( )________A B C D【答案】A错误，改为having.【解析】没有学好课程，所以他考试失败了。

电路实物图改错题1、请帮忙将电流与电压关系实验中少连的导线连上。

2、在测量电阻值时，有一根导线连接错了，请在错误的导线上画X并改正过来。

3、在伏安法测电阻的实验中，有一根导线连接错误，请在错误的导线上画X并改正过来。

4、在测小灯泡电功率的实验中，连错了一根导线，请在连错的导线上画X，并把改正后的导线画在图上。

5、请指出用电压表测灯泡两端电压的实验中连接错误的导线，并在原图中画出正确的连接导线。

6、在用电压表测定值电阻两端的电压实验中，有一根导线连接错误，请改正过来。

7、在测小灯泡电功率的实验中，连错了一根导线，请在连错的导线上画X，并把改正后的导线画在图上。

8、在伏安法测电阻的实验中，有一根导线连接错误，请在错误的导线上画X并改正过来。

9、在测小灯泡电功率的实验中，连错了一根导线，请在连错的导线上画X，并把改正后的导线画在图上。

10、在测小灯泡电功率的实验中，连错了一根导线，请在连错的导线上画X，并把改正后的导线画在图上。

11、在测量电阻值时，有一根导线连接错了，请在错误的导线上画X并改正过来。

12、在伏安法测量电阻值时，有一根导线连接错了，请在错误的导线上画X并把改正后的线画在图中。

13、在“探究电流与电压关系”的实验中所连接的实物图中，有一根导线接错了，请在错误处画X，并在图上改正。

14、请在用电流表、电压表测量小灯泡电流、电压的电路图中指出错误处并用“X”表示，并改正过来。

在右侧空白处画出正确的电路图。

15、请在XXX根据电路图连接的实物图中连接错误的导线上打补画出正确的连线，以使小灯泡能够亮起来。

16、欢迎下载精选资料，仅供参考。

初中英语改错试题及答案1. 错误：I am go to the park tomorrow.正确：I am going to the park tomorrow.2. 错误：She don't like to eat apples.正确：She doesn't like to eat apples.3. 错误：There are a lot of people in the street.正确：There are a lot of people in the street.4. 错误：He has finished his homework already.正确：He has already finished his homework.5. 错误：I have bought a new bike since two weeks.正确：I have had a new bike for two weeks.6. 错误：There is no any milk in the fridge.正确：There is no milk in the fridge.7. 错误：I can speak English very good.正确：I can speak English very well.8. 错误：She is a very beautiful girl.正确：She is a very beautiful girl.9. 错误：He is too tired to go to bed.正确：He is too tired to go to bed.10. 错误：Can you tell me how to get to the museum?正确：Can you tell me how to get to the museum?11. 错误：The weather is very hot today.正确：The weather is very hot today.12. 错误：They are going to have a meeting tomorrow.正确：They are going to have a meeting tomorrow.13. 错误：She is reading a book in the library.正确：She is reading a book in the library.14. 错误：I have lost my key.正确：I have lost my key.15. 错误：They are playing football in the park.正确：They are playing football in the park.请注意，以上改错试题及答案仅供参考，实际考试中的题目可能会有所不同。

实验 12．改错题（1）以下程序的功能为：计算 x*y 的值并将结果输出。

试纠正程序中存在错误，以实现其功能。

程序以文件名保留。

#include <> #include <>main main(){ {int x=2;y=3;a int x=2 , y=3, a;A=x*y a=x*y ;print ('a=%d",a); printf( " a=%d",a);printf("\n") ；printf("\n") ;} }（2）以下程序的功能为：求两数中的较大数据并输出。

试纠正程序中存在错误，以实现其功能。

程序以文件名保留。

#include<> viod main() { #include <> voi d main() {int a,b,max;Scanf("%d,%d",&a,&b); Max=a;If(max<b) max=b;Printf("max=%d\n",max); int a,b,max;scanf("%d,%d",&a,&b); max=a;i f (max<b) max=b; printf("max=%d",max);} }3．填空题（1）从键盘输入两个整数，输出这两个整数的和。

依据说明信息填写完好程序，以实现其功能。

程序以文件名保留。

#include<>main(){int x,y,total;printf("Please input x,y ! "); printf("Please input x,y!"); /*/*/*定义整型变量x,y,total*/输出提示信息*/由键盘输入两个数分别给予x 和y*/scanf("%d,%d",&x,&y);total=x+y;/*printf("%d + %d=%d\n",x,y,total); /* 赋值语句 */输出两个整数的和*/}（2）从键盘输入两个整数，输出这两个整数的差。