重庆市巴蜀中学2014届高三第一次月考英语试题(word版)

重庆市巴蜀中学2014届高三第一次月考英语试题(word版)
重庆市巴蜀中学2014届高三第一次月考英语试题(word版)

巴蜀中学高2014级2013-2014学年度第一次学月考试

命题人:范晓东

I卷:共85分

一、英语知识运用(共两节,满分45分)

第一节单项填空(共15小题;每小题1分,满分20分)

从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该选项的标号

涂黑。

1.Charles Dickens described __________ life in the middle of the 19th century, __________ period that is now

called Victorian.

A. /; a

B. the; a

C. /; the

D. a; /

2.When they had cleaned their bowls in this way, they would sit __________ at the pot with eager eyes, as if

they wanted to eat it.

A. stared

B. staring

C. to stare

D. stares

3.No sooner __________ these words than the warden hit him on the head with the soup spoon.

A. did he say

B. has he said

C. had he said

D. does he say

4.Timmy was only 11 years old, but he is already 1.7 meters tall. He is too tall __________ his age, I think.

A. at

B. in

C. about

D. for

5.The next morning a notice was put up on the door of the workhouse, offering a reward to __________ would

employ Oliver Twist.

A. whoever

B. no matter who

C. whomever

D. who

6.The American people will never forget the 9.11 event and the psychological trauma __________ caused to

hundreds of thousands of common households.

A. that

B. it

C. which

D. what

7.--- Where did you spot the murderer?

--- It was in the cinema __________ we watched Transformers that I saw him. I can’t remember when.

A. that

B. when

C. where

D. on which

8.--- Could you get these materials photocopied please?

--- __________. I’ll bring them to you tomorrow.

A. Out of the question

B. My pleasure

C. No way

D. Consider it done

9.--- I’m sorry I ________ make it yesterday. I ________, but I was really busy.

--- That’s fine. I know you are usually busy at this time of year.

A. couldn’t, intended to have come

B. didn’t, intended to have come

C. couldn’t, intended to come

D. didn’t, intended to come

10.--- Nancy, can I take a look at the note you took for last period, please?

--- I’m sorry, I __________ something else then. I’ll make it up right away.

A. did

B. was doing

C. had done

D. have done

11.--- How come you know the accident so well?

--- Well, because I was on the __________.

A. sight

B. view

C. scene

D. place

12.I wonder when it was __________ you came to realize __________ he said meant.

A. that; what

B. what; that

C. what; what that

D. that; what what

13.--- Ouch! You stepped on my toe!

--- I’m sorry, I didn’t __________.

A. mean to

B. mean to do

C. mean to have

D. mean to step

14.Jim, I am sure __________ we met, we were at a rock concert, and since then we’ve known each other.

A. for the first time

B. the first time

C. at the first time

D. at the time

15.When it comes to the human tendency to use the right hand much more often than the left hand, we seem to

have __________ it from our animal ancestors, namely monkeys and chimpanzees.

A. succeeded

B. acquired

C. inherited

D. attained

第二节完形填空(共A, B两节,20小题;每小题1.5分,满分30分)

请阅读下面两篇短文,掌握其大意,然后从41~60各题所给的四个选项(A、B、C、和D)中,

选出最佳选项,并在答题卡上将该选项的标号涂黑。

A

“Why do we shout in anger?” a saint (圣人) asked his disciples (门徒). “Why do people shout at each other when they are upset?”

His disciples thought for a while, and one of them said, “Because we 16 our calm, we shout

for that.”

“But, why do you shout when the other person is 17 next to you?” asked the saint. “Isn’t it possible to speak to him or her with a soft 18 ? Why do you shout at a person when you’re angry?”

Disciples gave some other answers but none 19 the saint. Finally he explained, “When two people are angry at each other, their 20 distance a lot. To cover that distance they must shout to be

able to hear each other. The angrier they are, the 21 they will have to shout to hear each other through that great distance.”

Then the saint asked, “What 22 when two people fall in love? They don’t shout at each other

but talk softly, why? Because their hearts are very close and the distance between them is very 23 .”

The saint continued, “When they love each other even more, what happens? They do not speak loudly,

only whisper and they get 24 closer to each other in their love. Finally they even need not whisper,

they only 25 each other and that’s all. That is how close two people are when they love each other.”

The saint said finally, “When you argue, do not let your hearts get 26 , and do not say words

that distance each other more, or there will come a day when the distance is so great that you will not

27 the path to return!”

16. A. miss B. lose C. avoid D. refuse

17. A. already B. yet C. just D. well

18. A. voice B. sound C. attitude D. manner

19. A. excited B. satisfied C. surprised D. persuaded

20. A. heads B. brains C. backs D. hearts

21. A. faster B. slower C. louder D. earlier

22. A. happens B. matters C. decides D. concerns

23. A. short B. long C. easy D. hard

24. A. never B. ever C. too D. even

25. A. look at B. take over C. turn away D. rely on

26. A. empty B. distant C. cold D. lonely

27. A. build B. repair C. follow D. find

B

In all one’s lifetime, it is 28 that one spends the most time being with or dealing with, but it is

precisely oneself that one has the least 29 of. When you are going upwards in life, you tend to overestimate yourself; when you are going downhill you tend to underestimate yourself. It's 30 that you

think it wise for yourself to know your place and stay away from worldly trouble wearing a mask of cowardice, behind 31 the flow of sap in your life will be retarded (妨碍).

To get a thorough understanding of oneself 32 doing oneself a favor when it's needed. In time of anger, do yourself a favor by giving vent (发泄) to it in a quiet place so that you won't be hurt by its flames;

in time of 33 , do yourself a favor by sharing it with your friends so as to change a gloomy mood into a cheerful one; in time of tiredness, do yourself a favor by getting a good sleep or taking some tonic. Show yourself loving 34 about your health and daily life. Unless you know perfectly well when and how to do yourself a favor, you won't be confident and ready enough to resist the attack of illness.

To get a thorough understanding of oneself is to get a full control of ones life. Then one will 35

one's life full of color and flavor.

28. A. oneself B. yourself C. one D. you

29. A. awareness B. understanding C. sense D. mind

30. A. perhaps B. certain C. likely D. sure

31. A. it B. what C. that D. which

32. A. requires B. demands C. asks D. requests

33. A. happiness B. sadness C. illness D. danger

34. A. respect B. anxiety C. concern D. attendance

35. A. attain B. feel C. acquire D. find

二、阅读理解(共20小题; 每小题2分,满分40分)

请阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项,并在答题卡上

将该选项的标号涂黑。

A

The Healthy Habits Survey (调查) shows that only about one third of American seniors have correct habits. Here are some findings and expert advice.

1. How many times did you brush your teeth yesterday?

Finding: A full 33% of seniors brush their teeth only once a day.

Step: Remove the 300 types of bacteria in your mouth each morning with a battery-operated toothbrush. Brush gently for 2 minutes, at least twice a day.

2. How many times did you wash your hands or bathe yesterday?

Finding: Seniors, on average, bathe fewer than 3 days a week. And nearly 30%wash their hands only 4 times a day-half of the number doctors recommend.

Step: We touch our faces around 3,000 times a day-often inviting germs (病菌) to enter our mouth, nose, and eyes. Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds.

3. How often do you think about fighting germs?

Finding: Seniors are not fighting germs as well as they should.

Step: Be aware of germs. Do you know it is not your toilet but your kitchen sponge (海绵) that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds.

36.What is found out about American seniors?

A. Most of them have good habits.

B. Nearly 30%of them bathe three days a week.

C. All of them are fighting germs better than expected.

D. About one third of them brush their teeth only once a day

37.Doctors suggest that people should wash their hands .

A. twice a day

B. three times a day

C. four times a day

D. eight times a day

38.Which of the following is true according to the text?

A. We should keep from touching our faces.

B. There are less than 300 types of bacteria in the mouth.

C. A kitchen sponge can carry more germs than a toilet.

D. We should wash our hands before touching a door handle.

39.The text probably comes from .

A. a guide book

B. a popular magazine

C. a book review

D. an official document

B

In 1947 a group of famous people from the art world headed by an Austrian conductor decided to hold an interactional festival of music, dance and theatre in Edinburgh. The idea was to reunite Europe after the Second World War.

At the same time, the “Fringe” appeared as a challenge to the official festival. Eight theatre groups turned up uninvited in 1947, in the belief that everyone should have the right to perform, and they did so in a public house disused for years.

Soon, groups of students firstly from Edinburgh University, and later from the universities of Oxford and Cambridge, Durham and Birmingham were making the journey to the Scottish capital each summer to perform theatre by little-known writers of plays in small church halls to the people of Edinburgh.

Today the “Fringe”, once less recognized, has far outgrown the festival with around 1,500 performances of theatre, music and dance on every one of the 21 days it lasts. And yet as early as 1959, with only 19 theatre groups performing, some said it was getting too big.

A paid administrator was first employed only in 1971, and today there are eight administrators working all year round and the number rises to 150 during August itself. In 2004 there were 200 places housing 1,695 shows by over 600 different groups from 50 different countries. More than 1.25 million tickets were sold.

40.What was the purpose of Edinburgh Festival at the beginning?

A. To bring Europe together again.

B. To honor heroes of World War 11.

C. To introduce young theatre groups.

D. To attract great artists from Europe.

41.Why did some uninvited theatre groups come to Edinburgh in 1947?

A. They owned a public house there.

B. They came to take up a challenge.

C. They thought they were also famous.

D. They wanted to take part in the festival.

42.Who joined the "Fringe" after it appeared?

A. they owned a public house there

B. University students.

C. Artists from around the world.

D. Performers of music and dance.

43.We may learn from the text that Edinburgh Festival __________.

A. has become a non-official event

B. has gone beyond an art festival

C. gives shows all year round

D. keeps growing rapidly

C

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Room Information:

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Check-in Time: 7:00 P. M.

Hotel Amenities: Air Conditioned, Free Parking, 24 Hour Front Desk, Pool, Television with Cable, Coffee Maker in Room, Hairdryers Available.

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Check-in Time: 7:05 P. M.

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Room Information

Guest rooms feature TVs, in-room movies, Internet access, in-room safes, alarm clock radios, hairdryers, refrigerators, microwaves, and balconies.

Check-in Time: 7:00 A.M.

Hotel Amenities: Parking,Heated Pool, Television with Cable, and Coffee Maker in Room.

44.Which hotel gives a promise?

A. Baymont Inn Ft. Lauderdale.

B. Beach Plaza Hotel.

C. Baymont Inn Hotel.

D. Fort Lauderdale Plaza Hotel.

45.In which hotel parking is the cheapest?

A. Baymont Inn Ft. Lauderdale.

B. Beach Plaza Hotel.

C. Baymont Inn Hotel.

D. Fort Lauderdale Plaza Hotel.

46.If you ______ , you will probably go to Beach Plaza Hotel.

A. enjoy seeing films without leaving your hotel room

B. are fond of swimming in heated water

C. want to eat food cooked by yourself in the hotel

D. are a cigarette smoker

47.Which of the following is NOT true to the ads?

A. All of the three hotels provide television with cable.

B. You can keep your money in the room safe in Fort Lauderdale Plaza Hotel.

C. In Beach Plaza Hotel a 24-hour maid is available.

D. While staying in Fort Lauderdale Plaza Hotel, you can surf the Internet

D

People who multitask all the time may be the worst at doing two things at once, a new research suggests. The findings, based on performances and self-evaluation by about 275 college students, indicate that many people multitask not out of a desire to increase productivity, but because they are easily distracted and can’t focus on one activity. And “those people turn out to be the worst at handling different things,” said David Sanbonmatsu, a psychologist at the University of Utah.

Sanbonmatsu and his colleagues gave the students a set of tests and asked them to report how often they multitasked, how good they thought they were at it, and how sensation-seeking (寻求刺激) or imperative (冲动) they were. They then evaluated the participants’ multitasking ability with a tricky mental task that required the students to do simple mathematical calculations while remembering a set of letters.

Not surprisingly, the scientists said, most people thought they were better than average at multitasking, and those who thought they were better at it were more likely to report using a cellphone while driving or viewing multiple kinds of media at once. But those who frequently deal with many things at the same time were found to perform the worst at the actual multitasking test. They also were more likely to admit to sensation-seeking and impulsive behavior, which connects with how easily people get bored and distracted.

“People multitask not because it’s going to lead to greater productivity, but because they’re distractible, and they get sucked into things that are not as import ant.” Sanbonmatsu said.

Adam Gazzaley, a researcher at the University of California, San Francisco, who was not a member of the research group, said one limitation of the study was that it couldn’t find out whether people who start out less focused tend to ward multitasking or whether people’s recognizing and understanding abilities change as a result of multitasking.

The findings do suggest, however, why the sensation-seeker who multitask the most may enjoy risky distracted driving. “People who are multitasking are generally less sensitive to risky situations.” said Paul Atchley, another researcher not in the group. “This may partly explain why people go in for these situations even though they’re dangerous.”

48.The research led by Sanbonmatsu indicates that people who multitask __________.

A. seek high productivity constantly

B. prefer handling different things when getting bored

C. are more focused when doing many things at a time

D. have the poorest results in doing various things at the same time

49.When Sanbonmatsu and his colleagues conducted their research, they __________.

A. assessed the multitasking ability of the students

B. evaluated the academic achievements of the students

C. analyzed the effects of the participants’ tricky mental tasks

D. measured th e changes of the students’ understanding ability

50.According to Sanbonmatsu, people multitask because of their __________.

A. limited power in calculation

B. interests in doing things differently

C. inability to concentrate on one task

D. impulsive desire to try new things

51.From the last paragraph, we can learn that multitaskers usually __________.

A. drive very skillfully

B. go in for different tasks

C. fail to react quickly to potential dangers

D. refuse to explain the reasons for their behavior

E

Kodak’s decision to file for bankruptcy (破产) protection is a sad, though not unexpected, turning point for a leading American corporation that pioneered consumer photography and dominated the film market for decades, but ultimately failed to adapt to the digital revolution.

Although many attribute Kodak’s downfall to “complacency (自满) ,” that explanation doesn’t acknow ledge the lengths to which the company went to reinvent itself. Decades ago, Kodak predicted that digital photography would overtake film (胶片) — and in fact, Kodak invented the first digital camera in 1975 — but in a fateful decision, the company chose to shelf its new discovery to focus on its traditional film business.

“It wasn’t that Kodak was blind to the future”, said Rebecca Henderson, a professor at Harvard Business School, but rather that it failed to execute on a strategy to confront it. By the time the company realized its mistake, it was too late.

Kodak is an example of a firm that was very much aware that they had to adapt, and spent a lot of money trying to do so, but ultimately failed. Large companies have a difficult time switching into new markets because there is a temptation to put existing assets (资产) into the new businesses.

Although Kodak predicted the unavoidable rise of digital photography, its corporate (企业的) culture was too rooted in the successes of the past for it to make the clean break necessary to fully embrace the future. They were a company stuck in time. Their history was so important to them. Now their history has become a liability.

Kodak’s downfall over the last several decades was dramatic. In 1976, the company commanded 90% of the market for photographic film and 85% of the market for cameras. But the 1980s brought new competition from Japanese film company Fuji Photo, which undermined Kodak by offering lower prices for film and photo supplies. Kodak’s decision not to pursue the role of official film for the 1984 Los Angeles Olympics was a major miscalculation. The bid went instead to Fuji, which exploited its sponsorship to win a permanent foothold in the marketplace.

52.What do we learn about Kodak?

A. It went bankrupt all of a sudden.

B. It is approaching its downfall.

C. It initiated the digital revolution in the film industry.

D. It is playing a dominant role in the film market.

53.Why does the author mention Kodak’s invention of the first digital camera?

A. To show its early attempt to reinvent itself.

B. To show its effort to overcome complacency.

C. To show its quick adaptation to the digital revolution.

D. To show its will to compete with Japan’s Fuji photo.

54.Why do large companies have difficulty switching to new markets?

A. They find it costly to give up their existing assets.

B. They tend to be slow in confronting new challenges.

C. They are unwilling to invest in new technology.

D. They are deeply stuck in their glorious past.

55.What does the author say Kodak’s history has become?

A. A burden.

B. A mirror.

C. A joke.

D. A challenge.

II 卷:35分

四、书面表达(共两个任务,满分35分)

写作一(满分1 5分)请结合材料,按要求用英文写作。

No pains, no gains. With every effort made, a person always harvests what he has planted.

要求:

(1)就此材料发表你的感想;

(2)应紧扣材料,结合实际,有明确的观点;

(3)词数不少于60。

___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________

写作二(满分20分)

一个英文网站面向中学生征稿。请你写一篇英语稿件,介绍中国“春节”及这个节日的主要活动。写作要点:

1、它是中国的传统节日之一,是家人团聚的时候;

2、各家走亲访友,一起吃年夜饭;

3、大人给小孩压岁钱,燃放烟花爆竹。

注意:1、词数不少于80;

2、适当增加细节,以使行文连贯;

3、不必按照中文提示顺序来写,避免逐字翻译;

4、文章开头已为你写好,不计入总词数。

The Chinese Spring Festival

The Chinese Spring Festival falls on the 1st day of the first month of the Chinese lunar calendar. ______________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________ ___________________________________________________________________________________________

高2014级2013-2014学年度上学期第一次学月考试题答案

I.单项选择

01-05: ABCDA 06-10: BCDAB 11-15: CDABC

II.完型填空

16-20: BCABD 21-25: CAADA 26-30: BDABC 31-35: DABCD

III.阅读理解

A篇: DDCB

B篇: ADBD

C篇: AACC

D篇: DACC

E篇: BADA

IV.书面表达

(1) No gains can be achieved in the absence of pains, as is dramatically illustrated in the material above. Every effort we make will pay off some day, allowing us to reap the harvest expected.

It is especially true in our study. Once I failed in the mid-term exam, for the reason that I had been addicted to computer games and had never spared any time to make necessary preparations. After that, I adopted the resolution that I would tear myself away from games and concentrate on what I was supposed to do. I succeeded in the final exam, ranking 3 in the class. Why I could return to the top list best explains the undying truth of no pains, no gains.

(2) Being one of the traditional festivals in China, it is a time for family reunion, as many overseas friends have known. During this time, anyone who works away from their hometown will find his way back.

One day before the festival, like Christmas Eve, we Chinese celebrate the New Year’s Eve, when we visit relatives and friends, and we always have a feast to celebrate the completion of the previous year and the arrival of a new year. Children are always excited, because they always receive the “Red Envelope” containing pocket money from their aunts and uncles. When the clock strikes 12, the sky will be full of fireworks and the air laden with the smell of hope. Everyone, with a look of promise and prospect, shouts with delight and joy, “A new year has come!”

重庆重庆市巴蜀中学校物理 静电场及其应用精选测试卷

一、第九章 静电场及其应用选择题易错题培优(难) 1.如图所示,带电量为Q 的正点电荷固定在倾角为30°的光滑绝缘斜面底端C 点,斜面上有A 、B 、D 三点,A 和C 相距为L ,B 为AC 中点,D 为A 、B 的中点。现将一带电小球从A 点由静止释放,当带电小球运动到B 点时速度恰好为零。已知重力加速度为g ,带电小球在A 点处的加速度大小为 4 g ,静电力常量为k 。则( ) A .小球从A 到 B 的过程中,速度最大的位置在D 点 B .小球运动到B 点时的加速度大小为 2 g C .BD 之间的电势差U BD 大于DA 之间的电势差U DA D .AB 之间的电势差U AB =kQ L 【答案】BC 【解析】 【分析】 【详解】 A .带电小球在A 点时,有 2 sin A Qq mg k ma L θ-= 当小球速度最大时,加速度为零,有 '2 sin 0Qq mg θk L -= 联立上式解得 '2L L = 所以速度最大的位置不在中点D 位置,A 错误; B .带电小球在A 点时,有 2 sin A Qq mg k ma L θ-= 带电小球在B 点时,有 2sin 2 B Qq k mg θma L -=() 联立上式解得

2 B g a = B 正确; C .根据正电荷的电场分布可知,B 点更靠近点电荷,所以B D 段的平均场强大小大于AD 段的平均场强,根据U Ed =可知,BD 之间的电势差U BD 大于DA 之间的电势差U DA ,C 正确; D .由A 点到B 点,根据动能定理得 sin 02 AB L mg θqU ? += 由2 sin A Qq mg k ma L θ-=可得 214Qq mg k L = 联立上式解得 AB kQ U L =- D 错误。 故选BC 。 2.电荷量相等的两点电荷在空间形成的电场有对称美.如图所示,真空中固定两个等量异种点电荷A 、B ,AB 连线中点为O.在A 、B 所形成的电场中,以O 点为圆心半径为R 的圆面垂直AB 连线,以O 为几何中心的边长为2R 的正方形平面垂直圆面且与AB 连线共面,两个平面边线交点分别为e 、f ,则下列说法正确的是( ) A .在a 、b 、c 、d 、e 、f 六点中找不到任何两个场强和电势均相同的点 B .将一电荷由e 点沿圆弧egf 移到f 点电场力始终不做功 C .将一电荷由a 点移到圆面内任意一点时电势能的变化量相同 D .沿线段eOf 移动的电荷,它所受的电场力先减小后增大 【答案】BC 【解析】 图中圆面是一个等势面,e 、f 的电势相等,根据电场线分布的对称性可知e 、f 的场强相同,故A 错误.图中圆弧egf 是一条等势线,其上任意两点的电势差都为零,根据公式W=qU 可知:将一正电荷由e 点沿圆弧egf 移到f 点电场力不做功,故B 正确.a 点与圆面内任意一点时的电势差相等,根据公式W=qU 可知:将一电荷由a 点移到圆面内任意一点时,电场力做功相同,则电势能的变化量相同.故C 正确.沿线段eof 移动的电荷,电场

(完整版)重庆巴蜀中学2019年初三上入学数学试卷含解析解析

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梯形的一组对边平行,即可判断C ; 由公理3得不同在一条直线上的三个公共点确定一个平面,即可判断D . 【详解】A. 由公理3知:不共线的三个点确定一个平面,故A 错; B. 四边形有平面四边形和空间四边形两种,由不共面的四个点构成的四边形为空间四边形,故B 错; C. 在同一平面内,梯形的一组底边平行,平行的两条直线确定一个平面,故C 正确; D. 不共线的三个点确定一个唯一一个平面,故D 错误. 故选:C. 【点睛】本题考查公理1、2、3,考查了公理掌握的熟练程度,考查了推理能力,属于基础题. 3.已知函数()sin 2f x x =,则的导函数( ) A. cos2x B. cos2x - C. 2cos2x D. 2cos2x - 【答案】C 试题分析:根据正弦函数的导数公式及复合函数的求导法则可得:令sin ,2y u u x ==,则 ()(cos )22cos 2u x f x y u u x =?=''='?,故选C. 4.下列双曲线中,渐近线方程为2y x =±的是( ) A. 2 214y x -= B. 2 214 x y -= C. 22 12y x -= D. 2 212x y -= 【答案】A 【解析】 由双曲线的渐进线的公式可行选项A 的渐进线方程为 ,故选A. 5.函数()()1x f x x e =-的单调递减区间是( ) A. (),2-∞ B. 2, C. ,0 D. 0, 【答案】D 【解析】 求出函数的定义域、导函数,令()0f x '<解得函数的单调递减区间.

(完整版)2019年重庆巴蜀中学小升初数学试卷

数学试卷 (时间:60分钟 分值:100分) 一、填空:(每题3分,共36分) 1、一个四位数□73□,有约数3,又是5的倍数,这样的四位数一共有 个。 2、 在己考的4次考试中,张明的平均成绩为90分(每次考试的满分是100分),为了使平均成绩尽快达到95分以上,他至少还要连考( )次满分。 3、有一种由3份甲种糖和2份乙种糖配成的什锦糖,比由2份甲种糖和3份乙种糖配成的什锦糖每千克贵5. 28元,那么每千克甲种糖比每千克乙种糖要贵( )元。 4、甲、乙两个长方形它们的周长相等。甲的长宽比是3:1,乙的长宽比是5:1,甲、乙两个长方形面积比是( )。 5、一堆棋子有黑、白两种颜色,其中黑子占22 7 ;若增加10枚白子,这时黑子占72。那么, 这堆棋子原有 枚。 6、一个等腰三角形的腰是acm ,底是bcm ,这个图形的面积最大是( )cm 2。 7、把 7 1 化成小数后,小数点后50个数字之和是( )。 8、重庆巴蜀中学五年级参加数学竞赛的同学约有二百多人,考试成绩得90~100分的恰好占参赛人数的 71,得80~89分的占参赛人数的51,得70~79分的占参赛人数的3 1 ,那么70分以下的有 人。 9、有一正方体的体积是12cm 3,把这个正方体削成一个最大的圆锥体,圆锥体的体积是( )cm 3。 。 10、己知a:b=c:d ,现将a 扩大2倍,b 缩小到原来的31 ,而c 不变,d 应( ) 比例仍然成立。 11、某球赛门票15元1张,降价后观众增加了一半,收入增加了五分之一,则每张门票降价了( )元。 12、五年级参加文艺会演的共46人,其中女生人数的54是男生人数的12 1 倍,则参加演出的男生( )人。 二、选择:(每题2分,共10分) 1、一个长20分米的方木的横截面是边长为m 分米的正方形,将它锯掉8分米后,方木的体积比原来减少( )。 A 、8m 立方分米 B 、12m 立方分米 C 、8m 2立方分米 D 、12m 2立方分米 2、 把一根铁丝分成两段,第一段是全长的32,第二段是全长的3 2 米,第一段与第二段比( )。 A 、第一段长 B 、第二段长 C 、一样长 D 、无法比较 3、 a × 52=b ×53=c ×5 7 =d ,a 、b 、c 、d 都是不为0的自然数,其中最小的一个数是:( ) A 、a B 、b C 、c D 、d 4、 一个圆锥体和一个圆柱体的体积比7:8,它们的底面半径的比是3:2,那么该圆锥体和圆柱体高的比是( ) A 、7:18 B 、32: 63 C 、7:6 D 、6:7 5、下面判断中错误的有( )个。 A 、1 B 、2 C 、3 D 、4 两个面积相等的三角形不一定能拼成平行四边形。 ②因为2012年的2月有28日这一天,所以2012年是平年。 ③一件大衣,如果卖100元,可赚25%;如果卖120元,就赚50% ④一个两位小数精确到0.1后的近似值是2.0.这个小数最大是2.44。 ⑤一个圆柱和一个圆锥等底等高,那么圆柱的体积是圆锥的31 。 三、计算:(共28分) 1、直接写出答案(每题2分,共10分) 16.15÷1.7+0.85÷1.7= 199+99×99= ( 94+135+95+138)×1009= 2.25× 53+2.75÷13 2 +60%= 99999÷5+9999÷5+999÷5+99÷5+9÷5= 2、神机妙算(每题3分,共18分) 1、5132×5 3+7143×74+9154÷59 2、 256×255254+254×2551 3、141-521×19961995×521380 -181 1 4、 121+201+301+421+561+721+901 就读学校: 年级 班 姓名: 联系电话: 联系电话: ……密… …封 … … 线 … … 内… … 不 ……得……答… …题 … …

精品解析:重庆市渝中区巴蜀中学校2021-2021学年九年级上学期期末化学试题(解析版)

2021-2021 学年重庆市巴蜀中学九年级(上)期末化学试卷 一、选择题(本大题包括16 小题,每小题 2 分,共32 分,每小题只有一个选项符合题意) 1.在一次野炊活动中,下列分工一定属于化学变化的是() A.小明拔萝卜 B. 小刚生炭火 C. 小敏净化水 D. 小花洗碗筷 【答案】B 【解析】 【详解】A、小明拔萝卜只是将其从地里拔出,没有新物质生成,属于物理变化,故不符合题意; B、小刚生炭火是利用炭燃烧,属于化学变化,故符合题意; C、小敏净化水只是将其中的杂质除掉,属于物理变化,故不符合题意; D、小英洗碗筷只是用水将杂质洗掉片,没有新物质生成,属于物理变化,故不符合题意。 2.下列厨房中常见的物质分别加入蒸馏水中,搅拌,不能形成溶液的是() A. 食盐 B. 蔗糖 C. 味精 D. 面粉 【答案】D 【解析】 【详解】A、食盐能够溶于水,加入蒸馏水中能够形成溶液,故不符合题意; B、蔗糖能够溶于水,加入蒸馏水中能够形成溶液,故不符合题意; C、味精能够溶于水,加入蒸馏水中能够形成溶液,故不符合题意; D、面粉不溶于水,加入蒸馏水中不能形成溶液,故符合题意。 3.正确的实验操作对实验结果、人身安全非常重要。下列实验操作正确的是() A. 过滤 B. 闻气体气味 C. 检查装置气密性 D. 称量食盐 【答案】C 【解析】 【详解】A、过滤时应用玻璃棒引流,故选项不正确; B、闻气体的气味时,要用手轻轻煽动瓶口,让气体飘入鼻孔,故选项不正确;

C、检查装置气密性的方法:把导管的一端浸没在水里,双手紧贴容器外壁,若导管口有气泡冒出,装置不漏气,故选项正确; D、托盘天平的使用要遵循“左物右码”的原则,故选项不正确。 4.下列实验现象的描述正确的是() A. 白磷自燃产生白色烟雾 B. 硝酸铵固体溶解于水时,溶液温度升高 C. 装满CO2 的集气瓶中加入石蕊试液,石蕊变红 D. 铁丝伸入到硫酸锌溶液中,表面有白色固体生成 【答案】C 【解析】 【详解】A、白磷自燃产生大量的白烟,而不是白色烟雾,故选项不正确; B、硝酸铵固体溶解于水时吸热,溶液温度降低,故选项不正确; C、装满CO2 的集气瓶中加入石蕊试液,石蕊变红,故选项正确; D、铁丝伸入到硫酸锌溶液中,不反应,无明显变化,故选项不正确。 5.下列物质前者属于混合物,后者属于单质的是() A. 石灰石黄铜 B. 软水干冰 C. 稀有气体液氮 D. 冰水混合物臭氧 【答案】C 【解析】 【详解】A、石灰石、黄铜都属于混合物,故不符合题意; B、软水可能是纯净物,也可能是混合物,干冰属于化合物,故不符合题意; C、稀有气体属于混合物,液氮属于单质,故符合题意; D、冰水混合物中只有水分子,属于纯净物;臭氧属于单质,故不符合题意 6.下列实验操作不会发安全问题的是() A. S 在O2 中燃烧,集气瓶中加点水 B. 煤气泄漏,开抽油烟机排气 C. 加热高锰酸钾粉末的试管向上倾斜 D. 制得氢气后,立即点燃 【答案】A 【解析】

重庆重庆市巴蜀中学校高一上学期期中考试(物理)含答案

重庆重庆市巴蜀中学校高一上学期期中考试(物理)含答案 一、选择题 1.中国自主研发的“暗剑”无人机,时速可超过2马赫.在某次试飞测试中,起飞前沿地面做匀加速直线运动,加速过程中连续经过两段均为120m的测试距离,用时分别为2s 和l s,则无人机的加速度大小是 A.20m/s2 B.40m/s2 C.60m/s2 D.80m/s2 2.意大利物理学家伽利略在《两种新科学的对话》一书中,详细研究了落体运动,他所运用的方法是( ) A.假设-观察-逻辑推理(包括数学推演)-实验检验-修正推广 B.观察-假设-逻辑推理(包括数学推演)-实验检验-修正推广 C.逻辑推理(包括数学推演)-假设-观察-实验检验-修正推广 D.逻辑推理(包括数学推演)-观察-假设-实验检验-修正推广 3.如图所示,人站立在体重计上,下列说法正确的是() A.人对体重计的压力和体重计对人的支持力是一对平衡力 B.人对体重计的压力和体重计对人的支持力是一对作用力和反作用力 C.人所受的重力和人对体重计的压力是一对平衡力 D.人所受的重力和人对体重计的压力是一对作用力和反作用力 4.如图所示,粗糙的A、B长方体木块叠放在一起,放在水平桌面上,B木块受到一个水平方向的牵引力,但仍然保持静止,则B木块受力个数为 A.4 B.5 C.6 D.3 5.利用无人小飞机进行航拍,地面操控者进行以下操作时,能把无人机看成质点的是A.观察飞机通过一个标志杆所需时间B.调整飞机的飞行姿态 C.调整飞机旋转机翼D.调整飞机与被摄物体的高度差 6.质点做直线运动的速度—时间图象如图所示,该质点

A.在第1秒末速度方向发生了改变 B.在第2秒末加速度方向发生了改变 C.在前2秒内发生的位移为零 D.第3秒和第5秒末的位置相同 7.一物体以一定的初速度在水平地面上匀减速滑动.若已知物体在第1秒内位移为8.0 m,在第3秒内位移为0.5 m.则下列说法正确的是 A.物体的加速度一定为3.75 m/s2 B.物体的加速度可能为3.75 m/s2 C.物体在第0.5秒末速度一定为4.0 m/s D.物体在第2.5秒末速度一定为0.5 m/s 8.近几年,在国家宏观政策调控下,我国房价上涨出现减缓趋势。若将房价的“上涨”类比成“加速”,将房价的“下跌”类比成“减速”,据此,你认为“房价上涨出现减缓趋势”可类比成() A.速度增加,加速度减小 B.速度增加,加速度增大 C.速度减小,加速度增大 D.速度减小,加速度减小 9.如图所示,竖直平面内固定的半圆弧轨道两端点M、N连线水平,将一轻质小环套在轨道上,一细线穿过轻环,一端系在M点,另一端系一质量为m的小球,不计所有摩擦,重力加速度为g,小球恰好静止在图示位置,下列说法疋确的是() A.轨道对轻环的支持力大小为mg B.细线对M 3mg C.细线对轻环的作用力大小为3 2 mg D.N点和轻环的连线与竖直方向的夹角为30° 10.甲、乙、丙三辆汽车同时以相同的速度经过某一路标,此后甲一直做匀速直线运动,乙先加速后减速,丙先减速后加速,它们经过下一路标时的速度仍相同,则 A.甲车先经过下一个路标B.乙车先经过下一个路标 C.丙车先经过下一个路标D.无法判断谁先经过下一个路标

重庆巴蜀中学数学全等三角形(培优篇)(Word版 含解析)

一、八年级数学全等三角形解答题压轴题(难) 1.如图,已知△ABC中,AB=AC=20cm,BC=16cm,点D为AB的中点. (1)如果点P在线段BC上以6cm/s的速度由B点向C点运动,同时点Q在线段CA上由C向A点运动. ①若点Q的运动速度与点P的运动速度相等,经过1秒后,△BPD与△CQP是否全等,请说明理由; ②若点Q的运动速度与点P的运动速度不相等,当点Q的运动速度为多少时,能够使 △BPD与△CQP全等? (2)若点Q以②中的运动速度从点C出发,点P以原来的运动速度从点B同时出发,都逆时针沿△ABC三边运动,求经过多长时间点P与点Q第一次在△ABC的哪条边上相遇?【答案】(1)①△BPD≌△CQP,理由见解析;②V7.5 Q (厘米/秒);(2)点P、Q 在AB边上相遇,即经过了80 3 秒,点P与点Q第一次在AB边上相遇. 【解析】 【分析】 (1)①先求出t=1时BP=BQ=6,再求出PC=10=BD,再根据∠B=∠C证得 △BPD≌△CQP; ②根据V P≠V Q,使△BPD与△CQP全等,所以CQ=BD=10,再利用点P的时间即可得到点Q的运动速度; (2)根据V Q>V P,只能是点Q追上点P,即点Q比点P多走AB+AC的路程,设运动x 秒,即可列出方程15 6220 2 x x,解方程即可得到结果. 【详解】 (1)①因为t=1(秒), 所以BP=CQ=6(厘米) ∵AB=20,D为AB中点, ∴BD=10(厘米) 又∵PC=BC﹣BP=16﹣6=10(厘米)∴PC=BD ∵AB=AC, ∴∠B=∠C, 在△BPD与△CQP中,

BP CQ B C PC BD =?? ∠ =∠??=? , ∴△BPD ≌△CQP (SAS ), ②因为V P ≠V Q , 所以BP ≠CQ , 又因为∠B =∠C , 要使△BPD 与△CQP 全等,只能BP =CP =8,即△BPD ≌△CPQ , 故CQ =BD =10. 所以点P 、Q 的运动时间84 663 BP t (秒), 此时 107.5 43 Q CQ V t (厘米/秒). (2)因为V Q >V P ,只能是点Q 追上点P ,即点Q 比点P 多走AB +AC 的路程 设经过x 秒后P 与Q 第一次相遇,依题意得15 62202 x x , 解得x= 803 (秒) 此时P 运动了 80 61603 (厘米) 又因为△ABC 的周长为56厘米,160=56×2+48, 所以点P 、Q 在AB 边上相遇,即经过了80 3 秒,点P 与点Q 第一次在AB 边上相遇. 【点睛】 此题考查三角形全等的证明,三角形与动点相结合的解题方法,再证明三角形全等时注意顶点的对应关系是证明的关键. 2.(1)问题背景: 如图1,在四边形ABCD 中,AB =AD ,∠BAD =120°,∠B =∠ADC =90°,E 、F 分别是BC ,CD 上的点,且∠EAF =60°,探究图中线段BE ,EF ,FD 之间的数量关系. 小王同学探究此问题的方法是延长FD 到点G ,使DG =BE ,连结AG ,先证明△ABE ≌△ADG ,再证明△AEF ≌△AGF ,可得出结论,他的结论应是 ;

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