七年级第一学期-期中-上海市七年级第一学期第一次月考试卷(●)
整式运算测试卷2
一、选择题（本大题共4题，每小题3分，满分12分）
1.在2
x y ，13-，234x +，3
n
四个代数式中，单项式有………（ ）
（A ）1个 （B ）2个 （C ）3个 （D ）4个 2.设A 是关于x 的四次多项式，B 是关于x 的五次多项式，则（ ）
（A ）（A ＋B ）是关于x 的九次整式 （B ）（B －A ）是关于x 的一次整式 （C ）（A ＋B ）是关于x 的五次整式 （D ）（A ·B ）是关于x 的二十次整式
3.下列计算中，(1)a m ·a n ＝a
mn (2)(a m+n )2＝a 2m+n
(3)(2a n b 3)·(-61ab n-1)＝-3
1a n+1b n+2 (4)a 6÷a 3= a 3正确
的个数有………………………………( )
（A ）0个 （B ）1个 （C ）2个 （D ）3个 4.已知a ＜0，若-3a n
·a 3
的值大于零，则n 的值只能是…………( )
（A ）n 为奇数 （B ）n 为偶数 （C ）n 为正整数 （D ）n 为整数 二、填空题（本大题共14题，每小题2分，满分28分） 5.用代数式表示：m 与n 的差的平方 . 6.多项式2x 2
－3xy ＋y 2－4
6 中，常数项是 .
7.若4
5
x 3y z n 是8次单项式，则n ＝ .
8.将多项式－3x 2y ＋1
6 xy 2－5x 3y 3＋8按字母x 升幂排列
为 .
9.代数式b a 2
，
a b 2
3，2
ab -，23
1
ab 中的同类项是 . 10.计算： 2a ＋13 a ＝ ； 2a ·1
3 a ＝ ；
（－2x 3y 2
）3
＝ ；-12a 3
bc ÷（ ）= 4a 2
b ； （4x 2y- 8x 3）÷4x 2 =___________ . 11.计算：（14 x －2
3 x 2y ）·（－12xy ）＝ ；
（4x ＋2y ）·（x ＋y ）＝ .
12.计算：（－a 3）·（－a 2）3·（－a ）2·（－a 2）＝ .
13.计算（7.2×103）·（2.5×104）的结果，用科学记数法表示
为 .
14.已知a m ＝27 a n ＝3，则a m ＋
n ＝ .
15.若(x +y +z )(x -y +z )＝(A +B )(A -B )，且B =y ，则A ＝___________ . 16.已知(3x -2)0
有意义 , 则x 应满足的条件是_________________. 17.如果整式x 2 -mx +9
恰好是一个完全平方式，那么常数m 的值是
___________.
18.若(2-a )(3-a )=5 , 则 (a -2)2+(3-a )2的值等于 . 三、解答题（本大题共6题，每小题6分，满分36分） 19.计算：()()
⎪⎭
⎫
⎝⎛÷---÷x x x x x 2122422
3.
20.计算：()()()()2
2
33323-+-+-+a a a a .
21.计算：3
24223314321⎪⎭
⎫
⎝⎛-∙+⎪⎭⎫ ⎝⎛x x x x .
22.化简求值
已知：4
2332
2
4181,21,32b a b a C ab B b ab a A ⎪⎭
⎫ ⎝⎛-⎪⎭⎫ ⎝⎛-=-=-+=，且
2,1=-=b a .先化简再求值：C B A -∙22的值.
23.若单项式2
4125-+-n m y
x 与m n y x 43
1+是同类项，求这两个单项式的积.
24.要使()()
n x x mx x +-∙++3822的展开式中不含3
x 项，且常数项为
24，求m 、n 的值.
四、解答题（本大题共3题，每小题8分，满分24分）
25.把一个正方形的一边缩短5cm ，另一边加长2cm ，则得到的长方形面积比原来正方形面积减少46cm 2
，求原正方形的面积.
26.某数学小组同学用棋子摆了如图三个工字型图案
第1个 第2个 第3个 根据如此规律
(1) 摆第4个工字型图案需要多少个棋子？
(2) 摆第n 个工字型图案需要多少个棋子？（用n 的代数式表示）.
27.已知2,1=-=-xy y x .
求()()()y xy x y x xy x y xy ++--+-++-4223322的值.。
2023-2024学年第一学期七年级第一次月考语文试卷
2023-2024学年第一学期七年级第一次月考语文试卷注意事项：1．本试卷分试题卷和答题卡两部分。
试题卷共8页，满分120分，考试时间120分钟。
2．试题卷上不要答题，请用0．5毫米黑色签字水笔直接把答案写在答题卡上。
答在试题卷上无效。
3．答题前，考生务必将本人姓名、考场、考号填写在答题卡的指定位置上。
同学们，站在新起点，迎接新挑战，创造新成绩！一、积累与运用（32分）1、阅读下面语段，回答问题。
（共4分）晚秋chéng（）清的天，像一望无际的平静的碧海，强烈的白光在空中跳动着，宛如海面泛起的微波。
清风拂过，已经感觉到了几分美好，脚下的泥土开始松软，仿佛是对初春暖日的应和．．。
春天lì（）临，人间温暖。
明月qī（）冷地挂在梢头。
露染的示窗已点亮晨起的灯，这一片小小的昏黄，在雪色与月光中坚守，温暖着行人的心灵。
（1）根据拼音，填写汉字。
（3分）①chéng（）清②li（）临③qī（）冷（2）给加点词语“应和”注音，正确的一项是（）（1分）A．yīng héB．yīng hèC．yìng héD．yìng hè2、依次填入下面横线处的词语，恰当的一项是（）（2分）习近平说：“青春是用来奋斗的。
”青春只有一次，如何_______自己的青春华章，革命先辈做出了响亮的回答。
一百年来，他们挺身而出、艰苦奋斗的光辉形象，并未随着时间的流逝而_______，反而被岁月淬炼得熠熠生辉。
重温他们的奋斗历程，当代青年_______了自己的使命，_______了奋斗的信心。
A．续写淡漠明确坚定B．书写暗淡明确坚定C．书写暗淡坚定明确D．续写淡漠坚定明确3、下列句子中加点词语使用有误的一项是（）（2分）A．当你觉得整个世界都背弃你时，请相信，她只是背过身去，酝酿．．一个更美的拥抱。
B．面对外国记者咄咄逼人．．．．的提问，中国外交部发言人不卑不亢，回答有礼有节，赢得阵阵掌声。
上海市2021-2021学年七年级第一学期期中语文试卷
上海市2021-2021学年七年级语文上学期期中试题〔考试时间：90分钟总分值100分〕一、文言文阅读〔27分〕〔一〕默写〔10分〕1.来日绮窗前，。
〔?杂诗?〕2.春蚕到死丝方尽，。
〔?无题?〕3.，月是故土明。
〔?月夜忆舍弟?〕4.夜久语声绝，。
〔?石壕吏?〕5.，凭轩涕泗流。
〔?登岳阳楼?〕〔二〕古诗词理解与掌握〔3分〕酬乐天扬州初逢席上见赠刘禹锡巴山楚水凄凉地，二十三年弃置身。
怀旧空吟闻笛赋，到乡翻似烂柯人。
沉舟侧畔千帆过，病树前头万木春。
今日听君歌一曲，暂凭杯酒长精神。
6.“暂凭杯酒长精神〞一句中“长〞读音为_________，意思是____________。
〔2分〕7. 下面选项不正确的选项是．．．．．．．〔〕〔1分〕A．首联暗含着诗人在长期谪居中积蓄的痛苦和愤激心情。
B．颔联写出诗人回到了久别的家乡后对人事全非的感慨。
C．颈联中“沉舟〞“病树〞喻指遭受贬谪已经亡故的友人。
D．尾联既有对友人关心表达感谢，也有与友人共勉之意。
〔三〕课内文言文阅读〔6分〕白洋潮故事，三江看潮，实无潮看。
午后喧传曰：“今年暗涨潮。
〞岁岁如之······立塘上，见潮头一线，从海宁而来，直奔塘上。
稍近，那么隐隐露白，如驱千百群小鹅擘翼惊飞。
渐近，喷沫溅花，蹴起如百万雪狮，蔽江而下，怒雷鞭之，万首镞镞，无敢后先。
再近，那么飓风逼之，势欲拍岸而上。
看者辟易，走避塘下。
潮到塘，尽力一礴，水击射，溅起数丈，著面皆湿。
旋卷而右，龟山一挡，轰怒非常，炮碎龙湫，半空雪舞。
看之惊眩，坐半日，颜始定······8. 以下选项没有．．运用修辞方法的一项为哪一项〔〕〔2分〕A.岁岁如之。
B.如驱千百群小鹅擘翼惊飞。
C.蹴起如百万雪狮······D.万首镞镞，无敢后先。
2024-2025学年上海市闵行区七年级上学期第一次月考英语试卷
2024-2025学年上海市闵行区七年级上学期第一次月考英语试卷1. There came _________ old man, with _________ walking stick in his hand.A．the; an B．an: the C．an; a D．the; a2. But I think she’s brave _________ what she thinks is right.A．to do B．doing C．do D．done3. Within the next 80 years, our lives may _________ a lot by 3D printingA．change B．changed C．Changing D．be changed 4. The students are talking _________ about how they will spend the coming summerA．excited B．excitedly C．exciting D．excitement 5. After several _________, we finally worked out the problems.A．trying B．try C．tries D．to try6. What’s your scarf made of? It looks beautiful _________ you.A．on B．in C．with D．of7. Don’t worry. You will pass the exam _________ study hard.A．as B．when C．so D．if8. _________ great progress Alice has made! I’m so proud of her.A．What B．How C．What a D．How a9. Kate _________ snowboarding _________ a while, but soon lost interest.A．took, out B．took, on C．tried, for D．tried, with 10. I failed _________ what they said because they spoke so fastA．catch B．to catch C．caught D．being caught 11. —What did Jenny say to you just now?— She asked _________.A．whether we could eat these strawberriesB．whether could we eat these strawberriesC．how we grow strawberriesD．when strawberries will be fully grown12. I looked for my wallet everywhere, and ________ found it in my pocket.A．next B．last C．first D．finally13. I’ll be able to buy myself a wonderful new dress ________ the birthday party.A．with B．to C．for D．at14. — Why not put the stick and the umbrella together?—________. Let’s try it.A．You’d better not B．Good idea C．Yes, please D．No, I don’t mind 15. —It’s so noisy that I can’t hear clearly. Could you please say it again?— _________.A．That’s right B．Sounds good C．No problem D．My pleasure Complete the following passage with the words in the box. Each can only be used once.A. funB. carefullyC. failD. savingE. succeedI remember the first time I saw a skateboarder(滑板者) go past me when I was 14. The man moved in and out of the students in a smooth(平滑的) way, it was just so cool in a teenage boy’s eyes! After 16 money for a long time, I went to the shop and got my first skateboard.The first 17 was the start of a journey that would never end. My friends and I shared information with each other. We watched and studied videos of skateboarding 18 . Then we practised in the playground. And as my skateboarding years went by I made friends with other skateboarders. I was so happy that I knew many good times were waiting for me.Although skateboarding is great 19 the ability to act confidently(自信地) on a skateboard is not an easy thing. To 20 at anything, you need patience and hard work. Skateboarding is no different.21. __________, more and more students will show interest in learning traditional Chinese culture. (hope)22. We had a __________ about the differences between Britain and the US. (discuss)23. Nothing is ________ if you put your heart into it. (possible)24. Do you know why Al is being used to __________ music? (creative)25. Nina’s mother asks her to clear out the __________ things in her bedroom. (use)26. The company’s __________ set a good example for us. (succeed)27. I joined the music club because I can sing and dance beautifully.（对划线部分提问）________ ________ you join the music club?28. Mr Smith spends a lot of time looking after the plants in his garden. (保持句意不变)It _________ Mr Smith a lot of time ________ look after the plants in his garden.29. Let’s ask Tina to go to the park with us. (改为反意疑问句）Let’s ask Tina to go to the park with us, ________ _________?30. The students should learn how to protect themselves from the danger. (对划线部分提问）________ _________ the students learn?31. I have difficulty getting along with my classmates. (保持句意基本不变）I find ________ _________ to get along with mv classmates.32. John doesn’t know how he can answer all the questions without mistakes. (改为简单句)John doesn’t know ________ _________ answer all the questions without mistakes.33. travel, easy, ago, not, abroad, to, it, was, twenty years (连词成句）___________________________________________.Choose the best answer.Alice is a creative girl from the USA. There is a science show at her school. It’s a fun event. Many students take part in and invent many creative inventions. They do this to inspire(激励) students to create something useful in their daily life.Alice had no idea about what she could invent until her mother told her an article in the newspaper. The article explained how difficult it was to get sick people through the countryside to hospital in Africa. She felt sad and wanted to do something to help.Alice remembered that in North America, people used to pull heavy things on a wooden travois (旧式雪橇) with cars or horses. She had an idea: why not make a travois with wheels so it’s easier to move? And to make it lighter, she used bamboo from Africa instead of heavy wood.Later, Alice’s travois was one of the coolest inventio ns at the science show. With the help of US companies, she’s even planning to give ten travois to hospitals in Africa for tree, to help transport sick people more easily. Alice doesn’t know if she wants to be an inventor when she’s older, because she also likes music and writing, but she thinks it’s important for children to learn about inventing at school.34. The science show at Alice’s school is ________.A．to raise money for charityB．to entertain studentsC．to show students’ creative inventionsD．to encourage students to create useful inventions35. What made Alice sad after reading the newspaper article?A．There aren’t enough hospitals in Africa.B．Moving patients in the countryside to hospitals in Africa is difficult.C．Sick people can’t get eno ugh medicine.D．The transportation in Africa is convenient.36. So. What inspired Alice to invent the travois?A．A school homework B．A newspaper articleC．A game with her mother D．A picture of a travois37. Why did Alice choose to use bamboo for her inventionA．To make it good for the environment. B．To make it cheaper to produceC．To make it lighter and easier to mov D．To make it look more traditional38. Alice plans to _________ after the success of her invention at the science showA．donate some travois to African hospitals B．join an American companyC．make money by selling travois D．stud hard to become an inventor39. What does Alice think about learning about inventing at school!A．It’s a waste of time and energy.B．It’s useful for students who want to become engineers.C．She prefers to learn about music and writingD．She thinks it’s a good idea for kids to learn how to make new things.Choose the best words or expressions and complete the passage.It was a rainy, windy December afternoon. David stood outside his house happily because it was perfect weather to test his new invention —Umbrella Hat. He could hardly wait to see whether it could keep the rain off. He ________ put the hat on his head and started walking along the street. It worked!Suddenly, three boys in his neighbourhood stopped him. Ben, the biggest one, pulled his Umbrella Hat off his head rudely (粗鲁地)."What’s this?" he asked."It’s an Umbrella Hat. You can wear it on rainy days and ..." David said.The boys ________, "Will anyone wear that stupid thing? Ben threw the hat onto theground and they ran off.David ________ his Umbrella Hat from the ground in tearsSuddenly. he heard a lady say to him, "Are you okay?" Then she saw the ________ Umbrella Hat and asked, "E.….. what’s that?""It’s my Umbrella Hat. I thought of it and made it myself ..." answered David." What a creative ________ you have! Don’t ever let others put you down! Keep inventing and one day you will create something ________!" said the lady.After hearing these words, he felt much better and could already feel lots of new ideas coming out, waiting to spring into life!40.A．strangely B．quietly C．carefully D．busily41.A．greeter B．laughed C．watched D．discussed42.A．picked up B．gave up C．looked up D．put up43.A．beautiful B．old C．broken D．troublesome44.A．habit B．mind C．eye D．heart45.A．excited B．curious C．proper D．greatRead the passage and fill in the blanks with proper words.The world’s scientists are quite clear we need to be getting more of our energy from renewable sources.According to 2023 data (数据), about one—seventh of the world’s energy comes from renewable sources. That energy includes electricity, as well as transport and heating. If We l 46 just at electricity, almost one—third comes from renewable sources.But there are big differences from country to country. The Energy Institute(研究所) has collected data on the countries that set the most energy from renewable sources. At the t 47 of the list is Norway, which got 72% of its energy—and more than 98% of its electricity—from renewable sources in 2023.Most of that energy comes from hydropower(水力). Hydropower is the most common s 48 of renewable energy around the world, although there have been big increases in wind and s 49 power over the last 20 years as well.Sweden comes next on the list, u 50 renewable sources for almost 54% of its energy. Brazil is third at 50%.However, some countries are not counted on the list — including Iceland, where the government says it gets 85% of its energy from renewable sources, particularly geothermal (地热) power.Among richer countries, south Korea is one of the lowest users or renewable energy, with l 51 than 5% of its energy coming from renewable sources. In the US, renewable sources make up just below 12% of its energy.Answer the questions.Alex was born in a worker’s family. His parents saved money for his future university education. They had dreamed their son could get a good job and live a better life. However, to Alex. school lessons were quite difficult.One day when he was in senior high school. Alex went into the school psychologist’s(心理学家的) office to ask for help."I’ve been trying hard, but I just can’t do it," Alex was about to cry.The caring psychologist put his hand on the boy’s shoulder, "People have different kinds of talents. Alex. There are painters who were never able to learn maths. and engineers who can’t sing on key (唱准调). But they all have their talents. Some day you will find yours. And when you do, you will make all of us proud of you."After graduation, he found a job working in the garden around the town. Soon his customers began to notice that Alex had what they called a "green thumb".The plants he looked after grew well, and the roses blossomed (开花). People started to accept his suggestions for gardening, because he had an eye for colour and light.One day, he noticed a dirty land behind the city hall. He volunteered to make it into a garden. He bought some young trees, rose—hushes (玫瑰丛), and many other things. Before long, it had become a beautiful little park.Today Alex is the manager of a gardening company. He is very responsible and skillful. So his company is very popular around the town.52. What did Alex’s parents save money for?________________________________________.53. Where did Alex go for help?________________________________________.54. What did Alex do after graduation?________________________________________.55. What’s the meaning of " green t humb"? (Fill one word in each blank.)It means having a ________ for ________.56. What preparations did Alex make to turn the dirty land into a beautiful park?________________________________________.57. What can you learn from Alex’s story?________________________________________.58. Write at least 60 words on the topic “‘I tried something new”‘ (以“我尝试了新事物”为题写一篇不少于 60词的短文，标点符号不占格．)Suggested questions:(I) What new thing did you try?(2) How did you feel about it?(3) What have you learned from it?________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ _______________________________________。
2020年11月上海市第一学期七年级英语期中考试试卷(含答案和答题纸)
2020学年第一学期七年级期中考试试卷七年级英语（闭卷满分100分完卷时间90分钟）Part I Listening （第一部分听力）（共25分)Ⅰ. Listen to the sentences and match them with the pictures.（选出与所听句子内容相符合的图画）6%A B C DE F G1. 2. 3. 4. 5. 6.Ⅱ.Listen to the dialogue and choose the best answer to the question you hear. ( 听对话和问题，选出最恰当的答案)8%7. ( ) A. Doctor. B. Farmer C. Cook D. Teacher8. ( ) A. The bacon section B. The drink sectionC. The frozen food sectionD. The fruit section9. ( ) A.65432541 B. 65432123 C. 63232517 D. 6323175210. ( ) A. On Wednesday B. On Tuesday C. On Friday D. On Thursday11. ( ) A. In the reading room. B. In the hotel.C. In the teachers’ officeD. In the supermarket.12. ( ) A. It means we must not smoke here.B. It means we must not take photos here.C. It means we cannot walk on the grass.D. It means we must not chase each other in the street.13. ( ) A. Fried food B. Fruit C. Rice D. Vegetables14. ( ) A. He often plays football with his uncle.B. He often stays at home with his uncle.C. He often watches TV with his uncle.D. He often reads books with his uncle.Ⅲ. Listen to the passage and tell whether the following statements are True or False.（判断下列句子是否符合你听到的短文内容,符合的用“T”表示,不符合的用“F”表示）6%15. ( ) They are going to visit History Museum.16. ( ) Mrs. White works as a guide.17. ( ) They will spend an hour on the first floor for a meeting.18. ( ) They will see the history of cars on the second floor.19. ( ) On the third floor they will learn all about space and space travel.20. ( ) They can see a real(真正的) spaceship on the third floor.Ⅳ. Listen to the passage and fill in the blanks.（听短文，完成下列句子，每空格限填一词）5%21. The police help make our city a place.22. Some policemen tell the cars ______ to go or stop.23. The police also help people who can’t walk too .24. The police get around the town in many .25. Sometimes the police find lost children and _______ them home.Part II Vocabulary and Grammar (37分)I.Choose the best answer（选择最恰当的答案）: 14%1.Which of the following words is pronounced /keɪv/?A. careB. caveC. carryD. cage2.They called a fire engine and _______ ambulance when the fire broke out.A. anB. aC. theD. /3. I`d like a bedroom ___ a big window. I like sunshine.A. withoutB. forC. withD. has4. There is no food _______ drinks in her fridge.A. butB. andC. orD. so5. We have already got enough food. We ______ go shopping.A. needB. don`t need toC. need toD. don`t need6. -----_______ do we call people from Canada?-----We call them Canadians.A. WhatB. WhenC. HowD. Who7. The SPCA also helps animals_____ new homes.A. findsB. findC. findingD. found8. Tom saw the street cleaners ______ the streets on his way to school.A. cleansB. cleanC. cleanedD. cleaning9. Ben met an old friend of his when he ________ to a park yesterday afternoon.A. was walkingB. is walkingC. walkD. walks10. Thank you for ____ to me. I would like to be your penfriend, too.A. writeB. writesC. wroteD. writing11. My grandfather ____ the USA for three times.A.has gone toB.has been inC.has been toD.has been for12______ Ben _______ Kitty have been to Beijing. They took many photos of interesting places in Beijing.A. Neither…norB. Neither…orC. Both…orD. Both…and13. ---- _______ would you like to write a letter to?---- I’d like to write a letter to Mary.A. WhoB. WhatC. HowD. When14. --- Sally, your new bag looks so beautiful.--- __________A. Not at all.B. No，I don’t think so.C. Thank you.D. Well，it’s not good enough.Ⅱ. Complete the sentences with the given words in their proper forms. （用单词的最恰当形式填空）7%1.Mrs. Wang, Miss Tang and Susan have different ________. (job)2. A doctor makes sick people ________. (good)3.Some people are __________ to animals. They leave them in the streets. (kind)4.Susan takes notes and goes to meetings with her _________. (manage)5.Dogs help the police catch _________ and find missing people. (thief)6.Our flat has one _________ room, and three bedrooms.(live)7.Dogs help the blind cross the road ________. (safe)III.Rewrite the sentences as required（按要求改写句子，每空格限填一词）: 12%1.Brian did his homework with Mary yesterday. (改为否定句)Brian _______ _______ his homework with Mary yesterday.2.She wears a uniform at work. (改为一般疑问句)________ she ________ a uniform at work?3.My room is bigger than yours. (句意相同)Your room is _____ _____ mine.4.I’d like to live in the suburbs. (划线部分提问)______ ______ you like to live?5.We must take care of the Earth .（句意相同）We must ___________ ___________ the Earth .6.need, we, flat, a, bigger (连词成句)____________________________________________________.IV. Choose a proper word from the table and fill in the missing word.(从表格中选1 for her family. Dad loved history books and a history book would be okay. Her younger brother loved sweets. So she decided to buy him some sweets. Of course, that would make Mum2 , but people always eat sweets at Christmas. Sue’s problem was what to buy for her mum. Mum didn’t3 many books. She loves gardening, and she has already had everything for the garden. Sue could buy Mum a book with pictures of beautiful gardens in it. But she likes to be in her own garden. Sue4 a lot of time looking for something for her mum but nothing was good enough.Part III Reading and writing (38分)I. Reading Comprehension(阅读理解）A. True or False: 6% (符合的用“T”表示，不符合的用“F”表示)A tourist went into a shop in New York. He wanted to buy a nice watch, but the owner of the shop asked five hundred dollars for it. It was too expensive. Suddenly a young man came into the shop, took the watch out of the owner’s hand and ran out with it. It all happened in a few seconds. When the owner ran out into the street, the young man was already lost among the people.The tourist went on. At the next corner, he saw the young man with the watch in his hand.“Do you want to buy a fine watch, sir?” he asked in a low voice. “it’s only a hundred doll ars.” “the young man doesn’t know I saw him in the shop,” the tourist thought and he paid at once. When the tourist went back to the hotel, he told his friend about the fine watch.His friend took a look at the watch and started laughing. He sa id, “ This watch doesn’t cost even ten dollars. I’m sure the shop and the young man planned this together.”( )1. A tourist went into a shop in London.( )2. The tourist wanted to repair(维修) a watch.( )3. The owner of the shop asked 500 dollars for the watch.( )4. The young man liked the nice watch very much too.( )5. The young man ran out of the shop with the watch.( )6. The young man and the shop owner planned the trick(骗局) together.B.Choose the correct answer : 6%(阅读短文内容，选择最恰当的答案)A man was driving in the street. Suddenly his car stopped. He got out of the car to try to find the trouble. “It’s the motor,” said a voice near him.He was surprised to hear the voice and turned. He saw only an old horse. ‘Did you say something ?’he asked.‘I said you should check your motor,’ the horse replied（回答）.The man rushed to the nearest house. Excitedly he told the famer what had happened. “Was it an old horse with one ear ?” asked the famer. “Yes, that’s the one!”. ” Well, don’t pay any attention to him ”,the farmer said with a smile . “He doesn’t know anything about cars. He can only repeat (重复) what I often say.”( ) 1. Who told the man the trouble of his car ?A. An old horse.B. A farmerC. NobodyD. someone else( )2. He was ______ to hear the voice .A. gladB. sadC. surprisedD. angry( )3. The horse answered “________”.A. Get off the carB. Something is wrong with your carC. Check your motorD. Go to the nearest house( )4. How was the man when he saw the farmer?A.surprisedB. excitedC. sadD. angry( )5. The horse _____.A. was a clever horseB. couldn’t speakC. could repair the carD. could just repeat the words that the farmer said( )6. How will the man possibly feel at last ?A.ExcitedB. SurprisedC. HappyD. Disappointed(失望的)C.C h o o s e t h e w o r d s o r e x p r e s s i o n s a n d c o m p l e t e t h e p a s s a g e6%（选择最恰当的单词或词语，完成短文）Ben and Jim are twin ___1___. They are nine. They___2___ in Shenyang Primary School. They are in the same class. Every day they __3__ school and come back together.Their teacher, Mrs. Green says to the pupils，“Please write a composition（作文）‘My Mother’.”Jim is a good boy. He writes the composition at home, but Ben plays football __4___ his friends. The next day, Mrs. Green says to the class, “I read your compositions today, but two o f your compositions ___5__ just the same.” Ben stands up and says, “ Jim and I are twins. We have the same ___6__.”( ) 1. A. classmates B. brothers C. sisters D. deskmates( ) 2. A. studying B. study C. studied D. studies( ) 3. A. went to B. goes to C. go to D. have gone to( ) 4. A. with B. and C. at D. for( ) 5. A. is B. has C. am D. are( ) 6. A. father B. mother C. parents D. brotherD. Read the passage and fill in the blanks with proper words. ( 6% )(在短文的空格内填入适当的词，使其内容通顺，每空格限填一词，首字母已给)Do you know how to choose new clothes? The following is some a_______ for you.Different shapes, different clothes. If you are a fat person, try the clothes in dark colours to make you look slimmer. If you are a t______ person, try the clothes in warm colours like red, yellow or orange to make you look smarter. If you are a short person, try the tight and short clothes to make you look t________.Make sure how much money you can s_______. I______ you want to save money, you’d better choose the clothes that can be washed by hand or the clothes that are well made. But the clothes that cost more m_______ are not always better made. Sometimes less expensive clothes look better than expensive clothes.E. Answer the questions（根据短文内容回答下列问题）: 6%Edison(爱迪生) had a quick mind about invention（发明）, but not always about other things. One day he received a bill(账单). It said he must pay some money to the government the next day. If he was late, he would have to pay more money. Edison went to the city office. Many people were waiting there in line to pay. When he was waiting, his mind was busy with ideas about a new invention. When he arrived at the little window, the man inside said to Edison, “What’s your name?”Edison looked at the man, surprised. “I… I don’t know,” he said.“Then I can’t help you,” the man told him to leave.Other people paid the man. Edison stood there and tried to remember his name. The day ended, and he knew he would have to pay more money.In the street, he met a friend. He had to ask the friend what his name was.1. What did Edison receive one day?______________________.2. What must Edison do the next day?____________________________.3. Where did Edison go to pay the money?_____________________________.4. What did Edison do when he was waiting?______________________________.5. What happened to Edison when the man at the little window asked his name?__________________________________________________6.What does the passage（文章）mainly(主要) talk about?__________________________________________________II. Writing (作文) (8分)Write at least 60 words on the topic: A visit to _____ (以“一次去…的旅行”为题，写一篇旅行计划，不少于60词)（请注意勿出现个人信息，如姓名、班级等，否则不予评分）Suggested questions:(以下内容仅供参考)1.Where will you visit?2.How will you go there?3.What will you do there?A visit to ____________________ _______ ________ ________ ________ ________ ________ ________ _________________ ________ _______ ________ ________ ________ ________ ________ _________________ ________ _______ ________ ________ ________ ________ ________ _________________ ________ _______ ________ ________ ________ ________ ________ _________________ ________ _______ ________ ________ ________ ________ ________ _________________ ________ _______ ________ ________ ________ ________ ________ _________________ ________ _______ ________ ________ ________ ________ ________ ________(63) ________ ________ _______ ________ ________ ________ ________ ________ _________________ ________ _______ ________ ________ ________ ________ ________ _________2020学年第一学期七年级期中考试答题纸七年级英语（闭卷满分100分完卷时间90分钟）Part I Listening（第一部分听力）（共25分)I. Listening Comprehension (听力理解) (共25分)A.Listen and choose the right picture.（根据你听到的内容，选出相应的图片) (6分)1.______2.______3.______4.______5.______6.______B. Listen to the dialogue and choose the best answer to the question you hear. (根据你听到的对话和问题，选出最恰当的答案) (8分)7.______ 8.______ 9.______ 10.______ 11._____ 12._____ 13.______ 14.______C. Listen to the passage and tell whether the following statements are true or false.(判断下列句子是否符合你听到的短文内容，符合的用“T”表示，不符合的用“F”表示) (6分)15._______ 16._______ 17._______ 18._______ 19._______ 20._______D. Listen to the dialogue and complete the following sentences.（听短文，完成下列内容，每空格限填一词) (5分)21._________ 22.__________ 23.__________ 24.__________ 25._________Part II Vocabulary and Grammar（第二部分词汇和语法）（共37分）I. Choose the best answer.（选择最恰当的答案）（14分）1.______2.______3.______4. ______5.______6.______7.______8. ______9.______ 10.______ 11.______ 12.______13.______ 14.______plete the sentences with the given words in their proper forms.（用所给单词的适当形式填空）（7分）1._____________2.______________3.______________4.______________5._____________6.______________7.______________III. Rewrite the sentences as required.（按要求改写句子，每空格限填一词）（12分）1.__________ __________2.__________ __________3.__________ __________4.__________ __________5.__________ __________6. ___________________________________________________________________.IV. Complete the following dialogue with the words in the box. Each one can only be used once. (将下列单词编号填入空格。
上海市2022-2021学年第一学期期中考试七年级英语试题
第一学期期中考试 七年级英语试题第一部分 听力理解（共五大题，满分30分）Ⅰ.关键词语选择（共5小题；每小题1分，满分5分）你将听到五个句子，请在每小题所给的A 、B 、C 三个选项中选出你所听到的单词或短语。
每个句子读两遍。
1. A. hat B. bed C. bag2. A. brother B. father C. mother3. A. book B. notebook C. computer4. A. blue B. yellow C. green5. A. that B. this C. those Ⅱ.短对话理解（共10小题；每小题1分，满分10分）你将听到十段对话，每段对话后有一个小题。
请在每小题所给的A 、B 、C 三个选项中选出一个最佳选项。
每段对话读两遍。
6. What is that?A B C 7. What’s Eric’s telephone number?8. Where is the dog?A B C 9. Who is in the photo ?A B C镇_____________ 学校______________ 班级_____________ 姓名_______________密 封 线 内 不 要 答 题10. What can you see?A B C11. Whose dictionary is it?A. Jack’sB. Mike’sC. Paul’s12. What does Eric have?A. soccer ballB. volleyballC. baseball13. What color is the pencil?A. redB. yellowC. green14. Is Mike Jenny’s cousin?A. Yes, he is.B. No, he isn’tC. No, he is15. What’s the girl’s first name?A. GreenB. JennyC. JaneⅢ.长对话理解（共五小题；每小题1分，满分5分）你将听到两段对话，每段对话后有几个小题。
七年级第一学期语文第一次月考试卷(附答案)
七年级第一学期语文第一次月考试卷（附答案）考生注意：1. 本试卷满分120 分，考试时间120 分钟。
2. 所有答案必须写在答题纸上，写在试卷上无效。
一、积累与运用（共28 分）1. 默写古诗文中的名句名篇。
（10 分）（1）补写出下列名句中的上句或下句。
①秋风萧瑟，。
（曹操《观沧海》）②，小桥流水人家。
（马致远《天净沙·秋思》）③海日生残夜，。
（王湾《次北固山下》）④，影入平羌江水流。
（李白《峨眉山月歌》）⑤正是江南好风景，。
（杜甫《江南逢李龟年》）（2）默写李白的《闻王昌龄左迁龙标遥有此寄》。
，。
，__________。
2. 阅读下面的文字，完成（1）-（4）题。
（9 分）也许，到冬天来临，人们会讨厌雨吧！但这时候，雨已经化妆了，它经常变成美丽的雪花，飘然莅临人间。
但在南国，雨仍然偶尔造访大地，但它变得更吝sè 了。
它既不倾盆瓢泼，又不绵绵如丝，或淅淅沥沥，它显出一种自然、平静。
在冬日灰蒙蒙的天空中，雨变得透明，甚至有些干巴，几乎不像春、夏、秋那样富有色彩。
但是，人们受够了冷冽的风的刺激，讨厌那干涩而苦的气息，当雨在头顶上飘落的时候，似乎又降临了一种特殊的温暖，仿佛从那湿润中又漾出花和树叶的气息。
那种清冷是柔和的，没有北风那样咄咄逼人。
远远地望过去，收割过的田野变得很亮，没有叶的枝干、淋着雨的草垛，对着瓷色的天空，像一幅干净利落的木刻。
而近处池qí 里的油菜，经这冬雨一洗，甚至忘记了严冬。
（1）给加点字注音，根据拼音写汉字。
（3 分）莅．临（）吝sè（）池qí（）（2）文段中有错别字的一个词是“”，这个词的正确写法是“”。
（2 分）（3）“咄咄逼人”中“咄咄”的意思是__________。
（2 分）（4）将文段中画线的句子改为反问句，不得改变原意。
（2 分）3. 运用课外阅读积累的知识，完成（1）-（2）题。
（4 分）（1）《朝花夕拾》是鲁迅先生的一部回忆性散文集，其中《》记述了作者儿时盼望观看迎神赛会的急切、兴奋的心情，以及被父亲强迫背诵《鉴略》的扫兴而痛苦的感受。
上海市杨浦区2020-2021学年七年级上学期期中考试语文试卷(解析版)
B. “水何”两句既有大海的动静相称，又勾勒了大海的辽阔壮观。
C. “树木”四句虚写山岛与海水的景象，表现其不息的生命活力。
D. “日月”四句想象大海吞吐星辰的景象，表现诗人旷达的胸襟。
【答案】2.统一中原建功立业3. C
【2题详解】
此题考查学生对诗人思想感情的理解。根据诗歌内容可知，诗人登上碣石山顶，居高临海，视野开阔，大海的壮阔景象尽收眼底。这首诗意境开阔，气势雄浑，抒发了诗人统一中原、建功立业的雄心壮志。
⑤结末的教训是：所以倘有陌生的声音叫你的名字，你万万不可答应他。
⑥这故事很使我觉得做人之险，夏夜乘凉，往往有些担心，不敢去看墙上，而且极想得到一盒老和尚那样的飞蜈蚣。走到百草园的草丛旁边时，也常常这样想。但直到现在，总还没有得到，但也没有遇见过赤练蛇和美女蛇。叫我名字的陌生声音自然是常有的，然而都不是美女蛇。
（4）________________，小桥流水人家。（《天净沙·秋思》）
（5）_________________，思而不学则殆。（《论语》十二章）
【答案】(1).杨花落尽子规啼(2).影入平羌江水流(3).应傍战场开(4).枯藤老树昏鸦(5).学而不思则罔
【详解】诗词默写要求：一、不能添字，不能少字；二、字的笔画要准确。注意：杨、子规、羌、藤、罔。
⑧这是闰土的父亲所传授的方法，我却不大能用。明明见它们进去了，拉了绳，跑去一看，却什么都没有，费了半天力，捉住的不过三四只。闰土的父亲是小半天便能捕获几十只，装在叉袋里叫着撞着的。我曾经问他得失的缘由，他只静静地笑道：你太性急，来不及等它走到中间去。
12. 作者说“但那时却是我的乐园”，请简要回答百草园之“乐”表现在哪三个方面？
2024-2025学年初中七年级上学期第一次月考数学试题及答案(人教版)
2024-2025学年人教版七年级上册第一次月考数学模拟试卷（范围：第一章~第二章）一、单选题1. 水位上升2米记为2+米，那么水位下降3米记为（ ）A. 3−米B. 2−米C. 3+米D. 2+米 2. 我国高速公路发展迅速，据报道，到目前为止，全国高速公路总里程约为11800千米，用科学记数法表示为（ ）A. 51.1810×B. 311.810×C. 211810×D. 41.1810× 3. 如图，数轴上点P 表示的有理数可能是（ ）A. 1.6−B. 1.4−C. 0.6−D. 0.4− 4. 下列各数中，最小数是（ ）A. 0B. 153C. ()32−D. 23−5. 在计算11()()23++−时，按照有理数加法法则，需转化成（ ） A. 11()23+−B. 1)3+C. 11()23−− D. 1123 −+6. 下列各组数中，互为相反数是（ ）A. 2与12B. ()21−与1C. 21−与()21−D. 2与|2|− 7. 小明和同学们共买了4种标注质量为450g 的食品各一袋，他们对这4种食品的实际质量进行了检测，用正数表示超过标注质量的克数，用负数表示不足标注质量的克数，检测结果如下表： 食品种类 第一种 第二种 第三种 第四种检测结果 ＋10 －20 ＋15 －15则这四种食品中质量最标准的是（ ）A. 第一种B. 第二种C. 第三种D. 第四种 8. 有理数a ，b 在数轴上的位置如图，那么下列选项正确的是（ ）的的A. ||||a b −<−B. 0ab >C. 22a b >D. 0a b +>9. 定义一种新运算：*a b ab b =−．例如:1*21220=×−=．则()()4*2*3 −− 的值为（ ）A. 3−B. 9C. 15D. 2710. 设a 是绝对值最小的数，b 是最小的正整数，c 是最大的负整数，则a 、b 、c 三数之和为（ ）A. 1−B. 0C. 1D. 2二、填空题 11. 23−的相反数是__________，23−的绝对值是________． 12. 1363−÷×=______． 13. 比较大小：25−______1−（填“＞”或“＜”）． 14. 近似数1.35是由数a 四舍五入得到的，那么数a 的取值范围是________．15. 已知|x |＝2，|y |＝6，若x +y ＜0，则x ﹣y ＝_____．16. 如图，这是一种数值转换机的运算程序，若输入的数为5，则第2021次输出的数是_____．17. 若a ，b 互为相反数，c ，d 互为倒数，m 的绝对值为4，则22022()a b cd m +−+=__．18. 已知数轴上的点A ，B 表示的数分别为2−，4，P 为数轴上任意一点，表示的数为x ，若点P 到点A ，B 的距离之和为7，则x 的值为 _____．三、解答题19. 已知有理数：-0.5，0，2，122−，( 3.5)−−，2−． （1）把以上各数在下列数轴上用点表示出来：（2）把这些数按照从小到大的顺序排列，并用“<”号连接．20. 计算：（1）()()3996−−−+−；（2）()2023223145−+÷−−−×； （3）115486812 −+×； （4）()()32482233−−−÷×−．21. 阅读下面的解题过程，再解答问题．因为a ÷b 与b ÷a 互为倒数．所以在计算123724348 −÷−+的值时可采用下列方法： 解：因237134824 −+÷−＝()23724348 −+×−＝()()()237-24--24+-24348××× ＝－16+18－21＝－19， 所以，原式＝119− ．根据上述方法，计算：151176061512 −÷−−． 22. 某足球守门员练习折返跑，从初始位置出发，向前跑记作正数，向后跑记作负数，他练习记录如下(单位：m)：＋5，-3，＋10，-8，-6，＋13，-10（1）守门员最后否回到了初始位置？（2）守门员离开初始位置达到10m 以上(包括10m)的次数是多少？23. 观察下列三行数：2，-4， 8，-16， 32，-64，… ①0，-6， 6，-18， 30，-66，… ②-1， 2，-4， 8，-16， 32，… ③（1）第①行的第n 个数是_______（直接写出答案，n 为正整数）（2）第②、③行的数与第①行相对应的数分别有什么关系？（3）取每行的第8个数，计算这三个数的和．24. 在庆祝新中国72周年华诞的重要时刻，电影《长津湖》上映可谓恰逢其时、意义重大．电影《长津为的是湖》讲述了中国人民志愿军第9兵团某部穿插七连参加长津湖战役的过程，展现了人民军队炽烈的爱国情怀、对党和人民的无比忠诚，生动诠释了伟大的抗美援朝精神．昆明市9月30日该电影的售票量为1.3万张，10月1日到10月7日售票的变化如下表（正数表示售票量比前一天多，负数表示售票量比前一天少）：日期1日2日3日4日5日6日7日售票量的变化单位（万张）+0.6 +0.1 −0.3 −0.2 0.4 −0.2 +0.1（1）这7天中，售票量最多的是10月日，售票量最少的是10月日；（2）若平均每张票价为60元，这7天昆明市《长津湖》的票房共多少万元？2024-2025学年人教版七年级上册第一次月考数学模拟试卷（范围：第一章~第二章）一、单选题1. 水位上升2米记2+米，那么水位下降3米记为（ ）A. 3−米B. 2−米C. 3+米D. 2+米 【答案】A【解析】【分析】本题考查正负数的意义，根据规定方向为正相反方向为负直接求解即可得到答案；【详解】解：∵上升2米记为2+米，∴下降3米记为3−米，故选：A ．2. 我国高速公路发展迅速，据报道，到目前为止，全国高速公路总里程约为11800千米，用科学记数法表示为（ ）A. 51.1810×B. 311.810×C. 211810×D. 41.1810× 【答案】D【解析】【分析】本题考查了科学记数法，根据科学记数法：10n a ×（110a ≤<，n 为正整数），先确定a 的值，再根据小数点移动的数位确定n 的值即可解答，根据科学记数法确定a 和n 的值是解题的关键．【详解】解：411800 1.1810=×，故选：D ．3. 如图，数轴上点P 表示的有理数可能是（ ）A. 1.6−B. 1.4−C. 0.6−D. 0.4−【答案】A【解析】【分析】根据点A 在数轴上的位置，先确定A 的大致范围，再确定符合条件的数．【详解】解：因为点A 在−2与1−之间，且靠近−2，所以点A 表示的数可能是 1.6−．故选：A ．为【点睛】本题考查了数轴上的点表示有理数．题目比较简单．原点左边的点表示负数，原点右边的点表示正数．4. 下列各数中，最小的数是（ ）A. 0B. 153C. ()32−D. 23−【答案】D【解析】【分析】本题考查了有理数的乘方、有理数的比较大小，先计算出()32−、23−，再根据有理数的大小比较法则：正数大于0，负数小于0，正数大于负数，两个负数进行比较，绝对值大的反而小，进行比较即可得出答案，熟练掌握有理数的大小比较法则是解此题的关键．【详解】解：()328−=−，239−=−， 88−= ，99−=，98>，()32305321∴−<<−<，故选：D ．5. 在计算11()()23++−时，按照有理数加法法则，需转化成（ ）A. 11()23+−B. 1)3+C. 11()23−−D. 1123 −+ 【答案】A【解析】【分析】根据有理数的加法法则计算即可求解． 【详解】解：1123 ++− =1123 +− ， 故选：A ．【点睛】本题考查了有理数的加法，关键是熟练掌握异号两数相加的计算法则．6. 下列各组数中，互为相反数的是（ ）A. 2与12B. ()21−与1C. 21−与()21−D. 2与|2|− 【答案】C【解析】【分析】本题主要考查相反数以及绝对值，根据相反数以及绝对值的定义解决此题，熟练掌握相反数以及绝对值的定义是解决本题的关键．【详解】解：A 、2与12互为倒数，故此选项不符合题意；B 、()211−= ，()21∴−与1相等，故此选项不符合题意； C 、211−=− ，()211−=，∴21−与()21−互为相反数，故此选项符合题意； D 、|2|2−=，2∴与|2|−相等，故此选项不符合题意； 故选：C ．7. 小明和同学们共买了4种标注质量为450g 的食品各一袋，他们对这4种食品的实际质量进行了检测，用正数表示超过标注质量的克数，用负数表示不足标注质量的克数，检测结果如下表： 食品种类 第一种 第二种 第三种 第四种检测结果 ＋10 －20 ＋15 －15则这四种食品中质量最标准的是（ ）A. 第一种B. 第二种C. 第三种D. 第四种 【答案】A【解析】【分析】求出各种高于或低于标准质量的绝对值，根据绝对值的大小做出判断．【详解】解：∵|+10|＜|-15|=|+15|＜|20|，∴第1种最接近标准质量．故选：A ．【点睛】本题主要考查正数、负数的意义，理解绝对值的意义是正确判断的前提．8. 有理数a ，b 在数轴上的位置如图，那么下列选项正确的是（ ）A. ||||a b −<−B. 0ab >C. 22a b >D. 0a b +>【答案】A【解析】【分析】根据原点左边的数为负数，原点右边的数为正数．从图中可以看出01a <<，1b <−，||||b a >，再选择即可．【详解】解：由数轴可得：01a <<，1b <−，||||b a >，∴||||a b <−，故A 符合题意；0ab <，故B 不符合题意；22a b <，故C 不符合题意；0a b +<，故D 不符合题意；故选：A ．【点睛】本题考查了数轴，绝对值和有理数的运算，数轴上右边表示的数总大于左边表示的数． 9. 定义一种新运算：*a b ab b =−．例如:1*21220=×−=．则()()4*2*3 −− 的值为（ ）A. 3−B. 9C. 15D. 27【答案】C【解析】【分析】先求出()2*3−值，再计算()()4*2*3 −− 即可．【详解】解：∵*a b ab b =−，∴()2*3−=()()233×−−−=63−+=3−，∴()()4*2*3 −−=()()4*3−−=()()()433−×−−−=123+=15．故选：C ．【点睛】本题考查了新定义下的有理数运算，熟练掌握运算法则是解题的关键．10. 设a 是绝对值最小的数，b 是最小的正整数，c 是最大的负整数，则a 、b 、c 三数之和为（）A. 1−B. 0C. 1D. 2【答案】B的【分析】绝对值最小的数是0，最小的正整数是1，最大的负整数是1−，依此可得a b c 、、，再相加可得三数之和．【详解】解：由题意可知：011a b c ===−，，，∴()0110a b c ++=++−=．故选：B ．【点睛】本题主要考查了有理数的加法，此题的关键是知道绝对值最小的数是0，最小的正整数是1，最大的负整数是1−．二、填空题 11. 23−的相反数是__________，23−的绝对值是________． 【答案】 ①. 23−②. 23 【解析】【分析】根据只有符号不同的两个数互为相反数，可得一个数的相反数，根据负数的绝对值是它的相反数，可得一个负数的绝对值. 【详解】解：2233−=，23的相反数是23−，23−的绝对值是23． 故答案为（1）23−；（2）23． 【点睛】本题考查了相反数、绝对值的定义.a 的相反数是a −，一个正数的绝对值是它本身，一个负数的绝对值是它的相反数，0的绝对值是0． 12. 1363−÷×=______． 【答案】16− 【解析】【分析】根据有理数的乘除法运算即可． 【详解】解：原式111=236−×=−， 故答案为：16−． 【点睛】本题主要考查有理数的乘除运算，按照乘除为同级运算从左至右求解．13. 比较大小：25−______1−（填“＞”或“＜”）．【解析】【分析】本题考查了有理数的大小比较；根据两个负数比较大小，绝对值大的反而小可得答案． 【详解】解：∵215−<−， ∴215−>−， 故答案为：＞．14. 近似数1.35是由数a 四舍五入得到的，那么数a 的取值范围是________．【答案】1.345≤a ＜1.355【解析】【分析】根据近似数1.35精确到百分位，是从千分位上的数字四舍五入得到的，若干分位上的数字大于或等于5，则百分位上的数字为4；若千分位上的数字小于5，则百分位上的数字为5，即可得出答案．【详解】解：∵近似数1.35是由数a 四舍五入得到的，∴数a 的取值范围是1.345≤a ＜1.355；故答案为：1.345≤a ＜1.355．【点睛】本题考查了近似数，用到的知识点是近似数，一个数最后一位所在的数位就是这个数的精确度． 15. 已知|x |＝2，|y |＝6，若x +y ＜0，则x ﹣y ＝_____．【答案】8或4##4或8【解析】【分析】先根据绝对值的含义求解,x y 的值，再根据0,x y +< 分两种情况讨论即可.【详解】解：∵|x |＝2，|y |＝6，∴x ＝±2，y ＝±6，∵x +y ＜0，∴当x ＝2，y ＝﹣6时，x ﹣y ＝2+6＝8；当x ＝﹣2，y ＝﹣6时，x ﹣y ＝﹣2+6＝4；故答案为：8或4．【点睛】本题考查的是绝对值的含义，有理数加法的符号的确定，代数式的值，根据绝对值的含义求解,x y 的值，再分类是解本题的关键.16. 如图，这是一种数值转换机的运算程序，若输入的数为5，则第2021次输出的数是_____．【答案】4【解析】【分析】由程序图可得第一次输出的数为8，第二次输出的数为4，第三次输出的数为2，第四次输出的数为1，第五次输出的数为4，由此可得规律，进而问题可求解．【详解】解：由程序图可得第一次输出的数为5+3=8，第二次输出的数为1842×=，第三次输出的数为1422×=，第四次输出的数为1212×=，第五次输出的数为1+3=4，第六次输出的数为1422×=，……；由此可得规律为从第二次开始每三次一循环， ∴()202113673.......1−÷=， ∴第2021次输出的数是4；故答案为4．【点睛】本题主要考查有理数的运算及数字规律问题，解题的关键是根据程序图得到数字的一般规律即可．17. 若a ，b 互为相反数，c ，d 互为倒数，m 的绝对值为4，则22022()a b cd m +−+=__． 【答案】15【解析】【分析】根据题意得到0a b +=，1cd =，216m =，代入代数式计算即可．【详解】解：a ，b 互为相反数，c ，d 互为倒数，m 的绝对值为4，0a b ∴+=，1cd =，216m =，22022()a b cd m ∴+−+20220116=×−+0116=−+15=，故答案为：15．【点睛】此题考查了代数式的求值，熟练掌握相反数、倒数、绝对值等知识是解题的关键．18. 已知数轴上的点A ，B 表示的数分别为2−，4，P 为数轴上任意一点，表示的数为x ，若点P 到点A ，B 的距离之和为7，则x 的值为 _____．【答案】 2.5−或4.5【解析】【分析】根据数轴上两点间的距离公式列出方程，求出方程的解即可得到x 的值．【详解】解：根据题意得：|x +2|+|x -4|=7，当x ＜-2时，化简得：-x -2-x +4=7，解得：x =-2.5；当-2≤x ＜4时，化简得：x +2-x +4=7，无解；当x ≥4时，化简得：x +2+x -4=7，解得：x =4.5，综上，x 的值为-2.5或4.5．故答案为：-2.5或4.5．【点睛】此题考查了数轴，弄清数轴上两点间的距离公式是解本题的关键．三、解答题19. 已知有理数：-0.5，0，2，122−，( 3.5)−−，2−． （1（2）把这些数按照从小到大的顺序排列，并用“<”号连接．【答案】（1）见解析 （2）()1220.502 3.52−<−<−<<<−− 【解析】【分析】（1）利用数轴上表示有理数的方法表示即可．（2）根据数轴上有理数的特点即可求解．【小问1详解】解：0.5−，0，2，122−，( 3.5)−−，2−在数轴上表示为：【小问2详解】由（1）数轴可得：()1220.502 3.52−<−<−<<<−−． 【点睛】本题考查了用数轴表示有理数及利用数轴比较有理数的大小，熟练掌握数轴上有理数的特点：左边的数比右边小是解题的关键．20. 计算：（1）()()3996−−−+−；（2）()2023223145−+÷−−−×； （3）115486812 −+×； （4）()()32482233−−−÷×−．【答案】（1）3−（2）27−（3）22（4）11【解析】【分析】（1）根据有理数加减运算法则计算即可求解；（2）根据有理数的运算法则计算即可求解；（3）利用有理数的乘法分配律进行计算即可求解；（4）根据有理数的运算法则计算即可求解；本题考查了有理数的混合运算，掌握有理数的运算法则和运算律是解题的关键．【小问1详解】解：原式3996=−+− 36=-，3=−；【小问2详解】解：原式()43145=−+÷−−×()4320=−+−−，720=−−，27=−；的【小问3详解】 解：原式1154848486812=×−×+× 8620=−+，220=+，22=；【小问4详解】解：原式()168398=−−−×× ()1639=−−−×，()1627=−−−，1627=−+，11=．21. 阅读下面的解题过程，再解答问题．因为a ÷b 与b ÷a 互为倒数．所以在计算123724348 −÷−+的值时可采用下列方法： 解：因为237134824 −+÷−＝()23724348 −+×−＝()()()237-24--24+-24348××× ＝－16+18－21＝－19， 所以，原式＝119− ． 根据上述方法，计算：13511760461512 −÷+−−． 【答案】116−【解析】 【分析】仿照阅读材料中的方法求出所求即可．【详解】解：111()()41535761260+−−÷− 11()(60)415357126=+−−×− 45504435=−−++16=−， 则13511711660461512 −÷+−−=−． 【点睛】此题考查了有理数的混合运算，熟练掌握运算法则是解本题的关键．22. 某足球守门员练习折返跑，从初始位置出发，向前跑记作正数，向后跑记作负数，他的练习记录如下(单位：m)：＋5，-3，＋10，-8，-6，＋13，-10（1）守门员最后是否回到了初始位置？（2）守门员离开初始位置达到10m 以上(包括10m)的次数是多少？【答案】（1）守门员最后没有回到初始位置；（2）2次【解析】【分析】（1）根据题意可把记录的数据进行相加，然后问题可求解；（2）根据题意分别得出每次离初始位置的距离，进而问题可求解．【详解】解：（1）由题意得：(＋5)＋(-3)＋(＋10)＋(-8)＋(-6)＋(＋13)＋(-10)＝1(m)．答：守门员最后没有回到初始位置．（2）第一次离开初始位置的距离为5m ，第二次离开初始位置的距离为5-3=2m ，第三次离开初始位置的距离为2+10=12m ，第四次离开初始位置的距离为12-8=4m ，第五次离开初始位置的距离为4-6=-2m ，第六次离开初始位置的距离为-2+13=11m ，第七次离开初始位置的距离为11-10=1m ，∴守门员离开初始位置达到10m 以上(包括10m)的次数是2次．【点睛】本题主要考查有理数加减混合运算的应用，熟练掌握有理数的加减运算是解题的关键． 23. 观察下列三行数：2，-4， 8，-16， 32，-64，… ①0，-6， 6，-18， 30，-66，… ②-1， 2，-4， 8，-16， 32，… ③（1）第①行的第n 个数是_______（直接写出答案，n 为正整数）（2）第②、③行的数与第①行相对应的数分别有什么关系？（3）取每行的第8个数，计算这三个数的和．【答案】（1）2n −−（）（2）第②行的数是第①行相对应的数减2；第③行的数是第①行相对应的数乘以0.5−（）（3）每行的第8个数的和是386−【解析】【分析】（1）第①行的每个数是2−的乘方的相反数，其幂指数为数的个数n ；（2）将第①行各项的数减2即得第②行的数，第③行数等于第①行数相应的数乘以0.5−（），即可求解；（3）分别找出每行第8个数，进而计算这三个数的和即可．【小问1详解】解：首先2，4，8，16 很显然后者是前者2倍．由各数符号是交替出现，故考虑到数值的变化可以用(2)n −−表示．【小问2详解】第②行数等于第①行数相应的数减去2，第③行数等于第①行数相应的数乘以0.5−（）； 【小问3详解】解：每行的第8个数的和是()()()()88822220.5 −−+−−−+−−×−()2562582560.5=−−−×−386=−．【点睛】本题主要考查了探索数字变化规律，找规律时，善于发现数字之间的共同点，或者是隐藏关系，培养学生的数感是解题的关键．24. 在庆祝新中国72周年华诞的重要时刻，电影《长津湖》上映可谓恰逢其时、意义重大．电影《长津湖》讲述了中国人民志愿军第9兵团某部穿插七连参加长津湖战役的过程，展现了人民军队炽烈的爱国情怀、对党和人民的无比忠诚，生动诠释了伟大的抗美援朝精神．昆明市9月30日该电影的售票量为1.3万的张，10月1日到10月7日售票的变化如下表（正数表示售票量比前一天多，负数表示售票量比前一天少）：日期1日2日3日4日5日6日7日售票量的变化单位（万张）+0.6 +0.1 −03 −0.2 0.4 −0.2 +0.1（1）这7天中，售票量最多的是10月日，售票量最少的是10月日；（2）若平均每张票价为60元，这7天昆明市《长津湖》的票房共多少万元？【答案】（1）2；4 （2）750万元【解析】【分析】（1）把表格中的数据相加，即可得出结论；（2）根据表格得出1日到7日每天的人数，相加后再乘以60即可得到结果．【小问1详解】10月1日的售票量为：1.3+0.6=1.9（万张）；10月2日的售票量为：1.9+0.1=2（万张）；10月3日的售票量为：2-0.3=1.7（万张）；10月4日的售票量为：1.7-0.2=1.5（万张）；10月5日的售票量为：（万张）；10月6日的售票量为：1.9-0.2=1.7（万张）；10月7日的售票量为：1.7+0.1=1.8（万张）；所以售票量最多的是10月2日，售票量最少的是10月4日；故答案为：2；4；【小问2详解】由题意得，7天的售票量（单位：万张）分别为：1.9,2.0,1.7,1.5,1.9,1.7,1.8则7日票房：60(1.9+2.0+1.7+1.5+1.9+1.7+1.8)10000=7500000××（元）答：这7天昆明《长津湖》票房共750万元【点睛】本题考查了正数和负数以及有理数的混合运算，掌握正数和负数表示相反意义的量是解答本题的关键．.。
2024-2025学年第一学期第一次月考七年级历史试题(解析版)
2024-2025学年第一学期第一次月考七年级历史试题（考试范围1-6课）一、单项选择题（每小题2分，共50分）1．考古学家在北京人遗址中发现了五层面积较大、堆积较厚的灰烬层。
据此可推断北京人（）A．会直立行走B．会使用火C．会种植水稻D．有爱美意识【答案】B【解析】依据所学可知，会使用火是北京人的生活特征。
北京人生活在距今约七十万年至二十万年的周口店的山洞里，北京人已经会使用天然火，还会保存火种，用火烧烤食物，驱赶野兽，照明、防寒，所以在北京人遗址中发现四层面积较大且较厚的灰烬层，B项正确；会直立行走与题干“发现了五层面积较大、堆积较厚的灰烬层”不符，排除A 项；会种植水稻的是河姆渡居民，排除C项；题干只能体现出北京人会使用火，不能体现具有爱美意识，排除D项。
故选B项。
2．在“周口店遗址文化节”的活动现场，阿龙很想体验北京人的原始生活。
当主办者发给他一块兽肉让他切割时，他选择的最佳工具应该为（）A．石制工具B．铁制工具C．棍棒D．硬质土块【答案】A【解析】根据材料“阿龙很想体验北京人的原始生活”和所学可知，北京人已经能够制造和使用工具，北京人制造的石器是打制石器，A项正确；铁制工具是春秋时期才出现的，排除B项；棍棒不是最佳的切割工具，排除C项；土块不是最佳的切割工具，排除D 项。
故选A项。
3.央视《探索·发现》播放专题片《我们的祖先是怎样生活的》，有关原始人生活场景在专题片中可能出现的是（）A．元谋人使用磨制石器劳动B．北京人学会用火御寒照明C．河姆渡人学会制作彩陶D．半坡人以水稻为主要栽培作物【答案】B【解析】据所学可知，北京人生活在远古周口店，属于直立人，会使用天然火，打制石器，是人类第一次取得了支配一种自然力的能力，B正确；元谋人是打制石器，而不是磨制石器，A错误；大汶口文化时期会制作彩陶，C错误；河姆渡人以水稻为主要栽培作物，D错误。
4．位于黔东南州的西江千户苗寨，是目前中国乃至全世界最大的苗族聚居村寨。
2024人教版七年级语文第一学期第一次月考试卷
2024-2025学年度第一学期七年级第一次月考语文试卷(时间:150分钟满分:150 分)一、基础知识综合。
(40分)1.阅读下面文字，回答后面的问题。
美景贮蓄着无穷的力量，能给人无尽的美的享受。
美景可以是朗润的春山、绿茵茵的小草；可以是温晴的济南的冬天，有山有水，全在蓝天下暖和安适地睡着，让人看着便觉得有了着落；可以是热烈而又粗guǎng的夏雨，可以是使人静mì、使人怀想的秋雨。
文人墨客对美景的选择取决于内心，欣赏美景而心生感慨，于是写下至美篇章，经久传唱。
(1)给文段中加着重号的词语注音。
(2分)①贮蓄( ) ②着落( )(2)根据文段中拼音写出相应的词语。
(2分)③（粗guǎng）( ) ④（静mì）( )2.下列句子没有运用比拟修辞的是（）（3分）A．这一圈小山在冬天特别可爱，好像是把济南放在一个小摇篮里，它们全安静不动地低声地说“你们放心吧，这儿准保暖和”。
B．花儿羞答答地垂下头来。
C．指导员讲得真来劲儿，小明竖起耳朵听。
D．这块水晶里，包着红屋顶、黄草山，像地毯上的小团花的小灰色树影。
3.小语同学对敬辞与谦辞特别感兴趣，学了《陈太丘与友期行》后，他模仿文中友人的口吻对陈太丘说了以下这段话。
话中画线的敬辞与谦辞使用不当的一项是（）(3分)愚兄此次到寒舍拜访贤弟，感触颇多。
令郎元方虽年纪尚小，却甚有见识。
愚兄言语不周之处，还请见谅。
A.愚兄 B．寒舍 C．贤弟 D．令郎 E．见谅4.依次填入下面横线处的词语，恰当的一组是( )(3分)成熟的麦穗在阳光下低垂着头，那是在教我们；忙碌的蜜蜂在田野里采集花粉，那是在教我们；柔弱的水珠在四季轮回中滴穿穿石，那是在教我们。
A.谦虚勤劳坚韧B.谦让勤劳坚强C. 谦让勤俭坚韧D.谦虚勤劳坚强5.下列选项中文学常识正确的一项是( )(3分)A.朱自清，字秋实，号佩弦，散文家、诗人、学者，著有散文集《背影》、《欧游杂记》、《你我》等。