当前位置:文档之家› 中考冲刺模拟卷(一)(优等).doc

中考冲刺模拟卷(一)(优等).doc

中考冲刺模拟卷(一)(优等).doc
中考冲刺模拟卷(一)(优等).doc

中考冲刺模拟卷(优)

Part 2 Phonetics, Grammar and Vocabulary

(第二部分语音,语法和词汇)

II. Choose the best answer (最恰当的答案)(共20 分)

26. When he retired at 65, he painting in over 20 cities in Europe and Asia.

A.teaches

B. has taught

C. had taught

D. would teach

21. --did the winner of the bicycle race ride?

一At the speed of 40km/h.

A.How long

B. How fast

C. How much

D. How far

28.Alice ,her friends,always takes a long walk after supper.

A.both

B. as well as

C. but also

D. And

29.Hey.boy! would you like to show me your hand?

A.the others

B. the other

C. other

D. Another

30.The manager is much better than other employees dealing with the customers5 complaints.

A. in

B. at

C. on

D. Of

31.1 hear that you have been to Wenzhen. Did you like it ?How long you

________ t here ?

A. do..…stay

B. have ??…stayed

C. did..…stay

D. had ??…stayed 32There an aple and some bananas in the black bag just now.

A. is B, were C. was D. are (C)

33- Don't worry. Your bag here until you come back. So enjoy shopping in our supermarket.

-Thanks.

A. will keep

B. was kept

C. has been kept

D. will be kept

34- Excuse me. Can you tell me?

? Sorry, I don't know.

A. that where is a train

B.which train can I take

C.when the train leaves

D.where does the train goes (C)

35Middle school students usually have one-day visiting in the countryside in spring.

A.a

B. an

C. the

D. / (A)

36Ann's got a chance to go abroad as an exchange student,she?

A. doesn't

B. isn't

C. hasn't

D. wasn't

37Jim will take up drawing as his hobby when he the age of five.

A. reduced

B. reached

C. with reach

D. has reached (B)

38Don't let such a thing again, or you will probably lose your job.

A. happen

B. happens

C. to happen

D. happening

39Hans is the second boy in his class.

A. tall

B. taller

C. tallest

D. the tallest

40.The library of our neighbourhood ten hours a day.

A. opens

B. is open

C. has opened

D. is opened

41.How glad they were each other again in Beijing!

A. to see

B. see

C. seeing

D. Seen

42.Please help to cook some chicken, Jack. Our guests are coming soon.

A)yourself B) you C) me D) yourselves

43.We will make laws our environment.

A)to protect B) protect C) protecting D) protected

44.Don't eat food in the evening. It9s bad you.

A) too much, with B) much too, for C) too much, for DO much, with

45.?? Would you like me to help you with the housework?

A) Yes, I'd like to. B) Yoif re welcome.

C) No, I'd like to walk in the garden? D) That's very kind of you.

IIL Complete the following passage with the words or phrases in the box. Each can only be used once(将下列单词或词组填入空格。每空格限填一词,每个单词或词组只能填一次):(共8分)

A. youngest

B. professional

C. likely

D. grows up

E. won

Each year, the news magazine Time For Kids selects several young people to serve as TFK kid reporters. These kids are not 46 reporters, but they still have

to interview some important people.

Martin, who lives in New York, is a computer buff, plays the piano, and wants to be an airline pilot when he 47. When he got the assignment from TFK to

interview Andrew Hsu, he wanted to talk about science. After all, Andrew had just become the 48 winner of the Washington State Science and Engineering Fair.

The 11 -year-old scientist 49 the grand prize for identifying a particular genes

that plays an important role in keeping the human body healthy.

A. free

B. meet

C. receive

D. also

E. improving

Martin soon discovered that being a science whiz is just one of Andrew's achievements. He's 50 an athlete who competes in swimming. But the main

thing Andrew wanted to tell Martin about was the World Children Organization (WCO), Andrew Started this organization along with his brother Patrick. This project is meant to help improve the lives of children.

Andrew and Patrick believe that 51 education is the best way they can

make a positive difference for children. They know that there are places where a 52 education isn't available to kids. To help 53 that need, Andrew and

Patrick had the idea of producing videos about science, math, and languages for children in countries where there aren't enough qualified teachers-

IV Complete the sentences with the words in their proper forms (用括号中所给单词的适当形式完成下列句子,每空格限填一词)(共8分)

54.Our cherry tree has been losing leaves throughout the summer, (it)

55.The club organizes short trips to the mountains,, museums and so on. (beach)

56.In America,is the age when one can begin full day kindergarten, (fourth)57.is the first chapter in the book of wisdom, (honest)

58.The software should us to create our own videos, (able)

59.Roads, bridges, and houses were damaged in the earthquake, (heavy)

60.A power cut hit the city, leaving many thousands of people. (help)

61.There are so many people with guns these days, it's really. (frighten)V.Rewrite the following sentences as required (根据所给要求完成句子。62-67小题每空格限填一*词)(共14分)

65.Peter helps in the house at the weekend/改为一般疑问句)

Peter often in the house at the weekend?

66.We used to stay in a hotel by the sea on family holidays.(对划线部分提问)

you use to stay on family holidays?

67.Your mother has never tried shopping on the Internet.(改为反意疑问句)Your mother has never tried shopping on the Internet,?

68.James spent ten years making this amazing film.(保持句意不变)

James ten years to make this amazing film.

69.Chris bas gone to South Africa to enjoy the 2010 World Cup.

Karen has gone to South Africa to enjoy the 2010 World Cup, too.(合并为一句)Chris Karen have gone to South Africa to cajoy the 2010 World Cup.

70.Visitors love this city because it has historical sights and delicious food.(改为f奇单句)Visitors love this city its historical sights and delicious food.

Part 3 Reading and Writing (第三部分读写)

VI . Reading comprehension (阅读理解)(共50 分)

A . Choose the best answer(根据短文内容,选择最恰当的答案)(12分)

In the United States, it is important to be on time a class, a meeting, etc. However, this

may not be true in all countries. An American professor discovered this difference while

teaching a class in a Brazilian(巴西的)university. The two-hour class was scheduled to begin at 10 A.M. and end at 12 A.M. On the first day, when the professor arrived on time, no one was in the classroom. Many students came after 10 A.M. Several arrived after 10:30. Were these students being rude? He decided to study the students' behavior.

The professor talked to American and Brazilian students about lateness in both an informal and a formal situation. If they had a lunch appointment with a friend, the average American students defined lateness as 19 minutes after the agreed time. On the other hand, the average Brazilian students felt the friend was late after 33 minutes-

In an American university, students are expected to arrive at the appointed hour.

In contrast, in Brazil, neither the teacher nor the students always arrive at the appointed hour. Classes not only begin at the scheduled time in the United States, but also end at the scheduled time. In the Brazilian class, only a few students left the class at 12:00; many remained past 12:30 to discuss the class and ask more questions. While amving late may not be very important in Brazil, neither is staying late.

69.when the American professor came to give the university students lessons on time, he discovered.

A.like American students, Brazilian students were on time for class, too

B.Brazilian students felt sorry for being late.

C.unlike American students, Brazilian students were late for class

D.only several Brazilian students were rude enough to be late for class

70.Why did the professor study the Brazilian students5 behavior?

A.He felt angry at the students' rudeness.

B.He wanted to make the students come on time later.

C.He wanted to collect information for one of his studies.

D.he wanted the Brazilian students come for class on time later.

71.It can be inferred(推断)from the professor's study of lateness in the informal situation that.

A.neither Brazilian nor American students like being late in social gatherings

B.American students will become impatient if their friend is five minutes late

C.being late in one culture may not be considered so in another culture

D.Brazilian students will not come thirty-three minutes after the agreed time

72.From the last paragraph we know that in Brazil.

A)it is important to arrive at the appointed time

B)it is rude to keep the professor staying after calls

C)it is normal for students to leave during lectures

D)it is acceptable for professors to be late for class.

73.which of the following is NOT true?

A.all students come to class ahead of time in Brazilian university.

B.all students say hello to the professor when they arrive.

C.in Brazilian class, a few students leave the class at 12:00, many remain past 12:30 to ask questions.

D.students in America are expected to arrive at the appointed hour.

74.What is the main idea of this passage?.

A)People learn the importance of time from the culture they are in.

B)The importance of being on time differs among cultures-

C)Students being late for class should explain the reason to their teacher.

D)It is important to be on time for class in the United States

Be Choose the words or expression and complete the passage.(选择最恰当的单词或词语完成短文)(12分)

In America, people don't keep their old people at home. At a certain age they put them away In my country, the old people stay in the home until they 80.

But here, things are not like that. It's surprising to me that they put them away. The first thing they think of is a nursing home (养老院).Some of these people don't need a nursing home. If they had their own bedroom at home, they would watch

81 or listen to the radio or have themselves busy doing something interesting.

Right now there's a lady here, nothing wrong with her, but her children put her away. They don't come to see her. The only time they come to see her is when she says, "I can't breathe." She wants some 82? And that way she is just aging.

When I came here, she was a beautiful woman. She was looking nice. Now she is going down.

We had another lady here two years ago, she had two sons. She fell and had a

83 leg. They called the eldest son. He said, “Why call on me? Call the little

one. She gave all the money to that little one." That was bad. I was right there.

All these people are not helpless. But just the family 84 them. There is an old man here. His children took him for a ride one day, pushed him out of the car, let him walk and wander(徘彳回)by himself. He couldn't find his way home. His children try to 85 all that he has. They are trying to make him sign papers and things like those. There is nothing wrong with him. He can dress himself, cook his own meals, take a walk…They signed him in here, made the lawyers sign him in.

They are just in for money.

How can these children treat their old people like that? How awful!

80. A. fail B. disappear C. die D. hate

81. A. films B. pets C. television D. children

82. A. attention B. freedom C. invitation D. trouble

83. A. frozen B. broken C. weak D. terrible

84. A. have pity on B. deal with C. rely on D. get rid

of

85. A. take away B. give up C. dream of D. care for

C. Read the passage and fill in the blanks with proper words (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,首字母巳给):(14分)

When we meet someone for the first time, we often

cannot start a conversation. Don't worry. Here are some useful

suggestions that may help you.

A person who doesn't know what is happening around him often has n 81 to say, Therefore, if you want to know how to make a small talk, first you need to get r 82 information by reading newspapers or

magazines. Most people prefer to discuss the news with you during a talk.

If you are shy, you may have trouble in e 83 yourself. In many cases, a

shy person often wouldn't like to start a talk first to show his ideas or feelings. So you need to practice a lot. You can try chatting e 84 with those who you don't know, such as in a restaurant, on a bus, or in a market. Holding parties at your home

D> Answer the questions (

根据短文内容

答下列问题)(12分)杨浦17 and inviting your friends over is also a good way.

Besides, it's important to listen to others carefully. If you've given enough a 85 to another person, then the next time you can remember what he was

saying and start a conversation with him by talking about the same topic. For example, if

someone once told you that he would visit a doctor for a certain problem, you can talk with him by asking whether he is feeling b 86 now.

To start a conversation, you should make the first move. You can begin by saying hi, smiling and introducing yourself. Then the person will introduce himself. When the person is talking, don't f 87 to make eye contact, and reply with "Oh

really?” or "That's good.” from time to time.

Just be yourself. Be confident and sound sincere, and there is no reason why people won't want to talk to you.

Wendy is manager of customer service at ABC Products- She received the following letters from customers. Read the letters and answer the questions-

Dear ABC people:

Your Water-Detection Wand is rubbish and not worth the $99.97 I paid at all! You

promised I would be able to find water. Well, I haven't found so much as a puddle! It gets

very hot and dries out where I live in the Arizona desert and I need a waterfinder that

actually works. I want my money back! I also want compensation (*卜偿)for all the

time I spent using your worthless device.

Sincerely,

Sandy Shore

I need some assistance with a gift I recently received. My grandson bought me a Clap-O-Phone for my 87th birthday. According to the directions, if I want to make a phone call, all I need to do is clap out the numbers I desire dialed. That isn't as simple as it may sound, especially when the number 1 most frequently dial is that of my Turf Accountant at: 989-9998. It takes me exactly 17 minutes to make that many claps more if 1 forget my place. I was wondering if you have a speed-dial attachment (附加装置)I can order. My hands are aching.

Thank you,

DickT. Fine

Dear Sir or Madam:

I recently purchased your Wiggo-Matic Kitchen Wisk and I am fully satisfied! I have never been able to make egg-whites peak so high before. My lemon pies are a big success, thanks to your fabulous product.

Sincerely,

Abe Buffet

88.Who does Wendy work for?

89.Which customer is most pleased with their product? List one word that shows this.

91.How many claps would Mr. Fine have to make to call his Turf Accountant?

93.Which product would you like to own? Why?

首字母拓展阅读

A couple who held hands at breakfast every morning even after 70 years of marriage have died in 15 hours .The couple's eight children say the two had been inseparable(不

分离的)since meeting as teenagers. They remained deeply in love until the very end, said their daughter, Linda Cody.

Helen Felumlee, died at 92 on April 12. Her husband, 91-year-old Kenneth Felumlee, died the n 1 morning,

"We knew when one went, the other was going to go,” she said. According to Cody, about 12 hours after Helen died, Kenneth looked at his children and said, "Mom's dead." He quickly began to fade(衰退)and was surrounded by 24 of his c 2 family members and friends when he died.

"He was ready,” Cody said. n He just didn't want to leave her here by h 3 「'Son Dick Felumlee said his parents died of old age, surrounded by family.”At Dad f s bed we were singing his favorite hymns(赞美诗),and praying with him,” he wrote in an email. "It was a going away party, and we know he loved it.”

The pair had k 4 each other for several years when they met in Newport(纽波特),on Feb. 20,1944. Two days before his 21st b 5 , Kenneth 一who married Kenny 一was too young in Ohio.

Kenneth worked as a mechanic before becoming a mail carrier. Helen stayed at home, not only cooking and cleaning for her own family but also for other families in need. When Kenneth retired in 1983 and the children began to leave the house, the Felumlees began to explore their love of t 6, visiting almost all 50 states by

bus.

A 7 both experienced declining health in recent years, Cody said, each tried to stay strong

for the other.11 That f s what kept them going,” she said.

Reading books is becoming increasingly popular among Chinese adult, but newspapers and magazines are falling out of favor, a 1 to survey results released on Monday.

Polling 投票)40,600 adults in 29 provincial-level regions(省级地区),an annual survey on reading habits f 2 that they read 4.77 paper books and 2.48 digital ones in a year, up 0.38 and 0.13 respectively.

The survey, conducted from September by the Chinese Academy of Press and Publication, revealed that some 50.1 percent of Chinese adults read digitally, up 9.8 percentage points from last year and the first time this figure has topped 50 percent.

At the same time, they read 70.85 newspapers and 5.51 magazines a year, respectively d 3 635 and 1.05 year on year.

"Despite occasional skims, Chinese people in general have been reading more in recent years/ said XuShengguo, a senior researcher with the academy.

Supporting this view, 70.5 percent of respondents think that reading is "very” or "relatively” crucial to their living and d 4 but more than half think they haven't read enough - mainly d 5 to busy work schedules, lack of a reading habits and a dislike of reading.

"Still, we have to admit that our reading volume is f 6 less than in countries such as France, Japan and the Republic of Korea," Xu said.

Meanwhile, more than 90 percent of digital readers said they wouldn't buy what they have read digitally in paper format ■- a figure that has been climbing for four consecutive years and which, the researchers suggest, marks a bigger c 7 to the

paper book market.

26-30 CBBCB

31-35 CCDCA 36-40 CBACB

41-45 AABCD

46-53 BDAE DEAB

its, beaches, four, Honesty, enable, heavily, helpless, frightening

Does, help

Where did

has she

it cost

both, and

because of

69-74: CACDAB80-85 CCABDA nothing, recent, expressing, everywhere, attention, better, forget

2019年中考数学模拟冲刺试卷及答案

2019年中考数学模拟冲刺试卷及答案 本试卷分试题卷和答题卷两部分,试卷共6页,答题卷共6页,满分150分。考试时间120分钟。 注意事项: 1. 答题前,考生务必将自己的姓名、考号用0.5mm 黑色墨水签字笔填写在答题卡上,并核对相关信息是否一致。 2. 选择题使用2B 铅笔填涂在机读卡对应题目标号的位置上,非选择题用0.5mm 墨水签字笔书写在答题卷的对应位置。答在草稿纸、试卷上答题无效。 3. 考试结束后,将试题卷、答题卷、草稿纸一并交回。 一.选择题(本大题共12小题,每小题3分,共36分.在每小题所给出的四个选项中,只有 一项是正确的,请用2B 铅笔把答题卡上相应的选项标号涂黑...............) 1.16的平方根是( ) A.4 B.-4 C.±4 D.±8 2.下列运算正确的是( ) A .743)(x x = B .532)(x x x =?- C .34)(x x x -=÷- D. 23x x x += 3.下列美丽的图案,既是轴对称图形又是中心对称图形的个数是( ) A.1个 B.2个 C.3个 D.4个 4.如图,桌面上有一个一次性纸杯,它的俯视图应是( ) 5.某学习小组为了解本城市500万成年人中大约有多少人吸烟,随机调查了50个成年人,结果其中有10个成年人吸烟.对于这个数据收集与处理的问题,下列说法正确的是( ) A.该调查的方式是普查 B.本地区只有40个成年人不吸烟 A B C D

C.样本容量是50 D.本城市一定有100万人吸烟 6 杭州银泰百货对上周女装的销售情况进行了统计,如下表所示: 颜色 黄色 绿色 白色 紫色 红色 数量(件) 100 180 220 80 550 经理决定本周进女装时多进一些红色的,可用来解释这一现象的统计知识是( ) A .平均数 B . 众数 C .中位数 D .方差 7.两圆的半径分别为3和7,圆心距为7,则两圆的位置关系是( ) A. 内切 B.相交 C.外切 D.外离 8.在△ABC 中,D 、E 分别是边AB 、AC 的中点,若BC =5,则DE 的长是( ) A.2.5 B.5 C.10 D.15 9.如右图,一次函数y =kx +b 的图象经过A 、B 两点, 则不等式kx +b < 0的解集是( ) A.x <0 B. 0< x <1 C.x <1 D. x >1 10.某剧场为希望工程义演的文艺表演有60元和100元两种票价,某团体需购买140张, 其中票价为100元的票数不少于票价为60元的票数的两倍,则购买这两种票最少共需要( ) A.12120元 B.12140元 C.12160元 D.12200元 11.若2-=+b a ,且a ≥2b ,则( ) A.a b 有最小值21 B.a b 有最大值1 C.b a 有最大值2 D.b a 有最小值9 8- 12.在矩形ABCD 中,有一个菱形BFDE (点E ,F 分别在线段AB ,CD 上),记它们的 面积分别为ABCD S 和BFDE S ,现给出下列命题: ①若 2 32+= BFDE ABCD S S ,则33 tan =∠EDF ; ②若EF BD DE ?=2,则DF=2AD.则( ) A. ①是真命题,②是真命题 B. ①是真命题,②是假命题 A B O y x 1 2 y =kx +b

上海中考数学模拟试卷A

上海中考数学模拟试卷 A Modified by JACK on the afternoon of December 26, 2020

2015学年第二学期初三数学质量调研试卷() (满分150分,考试时间120分钟) 考生注意: 1.本试卷含三个大题,共25题,考试过程中可以使用不带存储记忆功能的计算工具; 2.答题时,考生务必按答题要求在答题纸规定的位置上作答,在草稿纸、本试卷 上答题一律无效; 3.除第一、二大题外,其余各题如无特别说明,都必须在答题纸的相应位置上写出证明或计算的主要步骤. 一、选择题(本大题共6题,每题4分,满分24分) 【下列各题的四个选项中,有且只有一个选项是正确的,选择正确项的代号并填涂在答题纸的相应位置上.】 1. 5的负倒数为 (A) 25; (B) 5-; (C) 51; (D) 5 1-. 2. 下面四个命题中,为真命题的是 (A) 若b a >,则22b a >; (B) 若b a >,则b a 11<;

(C) 若b a >,则22bc ac >; (D) 若b a >、d c >,则d b c a ->-. 3. “双十一”购物节后,小明同学对班上同学中的12位进行抽样调查并用数字1—12对每位被调查者进行编号,统计每位同学在购物节中消费金额,结果如下表所示: 根据上表统计结果,被调查的同学在“双十一”购物节中消费金额的平均数和众数分别为 (A) 400、300; (B) 300、400; (C) 400、400; (D) 300、300. 4. 二次函数3522+-=x x y 的对称轴和顶点分别为 (A) 对称轴:直线2 5 =x 、最高点:?? ? ??- 219,25; (B) 对称轴:直线2 5=x 、最低点:?? ? ??- 219,25;

中考模拟卷一

2020年中考模拟卷一 一.选择题(共10小题) 1.下列图标中是轴对称图形的是() A.B. C.D. 2.下列说法正确的是() A.0.3,0.5,0.4是一组勾股数 B.一组对边平行且相等的四边形是平行四边形 C.有两边相等的两个直角三角形全等 D.有意义的条件是x>2 3.下列计算正确的是() A.(a+b)2=a2+b2B.3÷= C.a2?a3=a6D.(﹣)﹣2=4 4.如图,将菱形ABCD的一角折叠,折痕为BE,点A恰好落在点F处,∠FBC比∠ABE 大80°.已知∠C=60°,设∠ABE和∠FBC的度数分别为x和y,那么所适合的一个方程组是() A.B. C.D. 5.如图,在△ABC中,以C为中心,将△ABC顺时针旋转35°得到△DEC,边ED,AC 相交于点F,若∠A=30°,则∠EFC的度数为()

A.60°B.65°C.72.5°D.115° 6.小磊利用最近学习的数学知识,给同伴出了这样一道题:假如从点A出发,沿直线走5米后向左转θ,接着沿直线前进5米后,再向左转……如此下去,当他第一次回到A点时,发现自己走了60米,θ的度数为() A.28°B.30°C.33°D.36° 7.如图,小玲为了测量大楼AB的高度,她由楼底B处前行一段距离到达坡底C处,在C 处测得大楼顶A的仰角为45°,再沿着斜坡走了10米后到坡顶D,前行5米到达E处,并在E处测得楼顶A的仰角为21°,已知斜坡CD的坡度为1:0.75,小玲身高1.6米,则大楼AB的高约()米.(其中,sin21°≈0.36,cos21°≈0.93,tan21°≈0.38,sin45°≈0.71,cos45°≈0.71,tan45°≈1) A.19.6B.21.2C.21.4D.21.8 8.甲、乙两人在直线跑道上同起点、同终点、同方向匀速跑步500米,先到终点的人原地休息.已知甲先出发2秒.在跑步过程中,甲、乙两人之间的距离y(米)与乙出发的时间t(秒)之间的关系如图所示,给出以下结论中错误的是()

2018中考语文冲刺模拟卷(含答案)

2018中考语文冲刺模拟卷(含答案) 一、积累与运用(20分) 1、下面句子中有两个错别字,请改正后用正楷字将整个句子抄写在米字格中。(2分) 融阳刚挺拨之气,汇纤柔蜿转之美。 2、根据语境,给下面一段话中加点的字注音。(2分) 百花山群峰连亘①,树木葱茏,古迹荟萃;梨花湖纯净湛②蓝,微波荡漾,渔舟穿梭……美丽的老河口定能让游客度过一个闲适愉快的假期。 3、下列句子中加点词语使用有误的一项是( )。(2分) A、开展小组合作学习讨论时,组长建议大家发言要直截了当,不必转弯抹角。 B、襄阳广德寺多宝佛塔结构严谨,独具匠心,有很高的建筑艺术和科学研究价值。 C、对人民群众深恶痛疾的互联网淫秽色情及低俗信息泛滥的现象,公安部等九部门正在全国范围内联合开展“扫黄打非·净网2014”专项整治行动。 D、3月14日6时42分,“玉兔”号月球车收到正常遥测信号,成功自主唤醒,迎来第四个月昼工作期,这是我国航天事业取得的又一空前绝后的成就。 4、下列句子有语病的一项是( )。(2分) A、近年来,由于我国信息化建设不断推进和信息技术广泛运用,使信息网络得到了快速普及。 B、当前,青少年深受网络语言的影响,忽视汉语的规范化使用,这应引起教育工作者的高度重视。 C、日前,中央财政已安排50亿元资金对京津冀及其周边地区因大气污染导致的雾霾天气进行专项治理。 D、在人类历史的长河中,众多的优秀人物活跃在襄阳的历史舞台上,留下了许多传颂千古、经久不衰的历史故事。 5、下面语句排序最恰当的一项是( )。(2分) ①我们要学会观察生活,要始终保持敏感的好奇心,唯如此,才能时时捕捉到鲜活的生活素材。

【冲刺卷】数学中考模拟试卷含答案

【冲刺卷】数学中考模拟试卷含答案 一、选择题 1.如图A,B,C是上的三个点,若,则等于() A.50°B.80°C.100°D.130° 2.如图,在平面直角坐标中,正方形ABCD与正方形BEFG是以原点O为位似中心的位 似图形,且相似比为1 3 ,点A,B,E在x轴上,若正方形BEFG的边长为12,则C点坐 标为() A.(6,4)B.(6,2)C.(4,4)D.(8,4) 3.三张外观相同的卡片分别标有数字1,2,3,从中随机一次性抽出两张,则这两张卡片上的数字恰好都小于3的概率是() A.1 9 B. 1 6 C. 1 3 D. 2 3 4.某球员参加一场篮球比赛,比赛分4节进行,该球员每节得分如折线统计图所示,则该球员平均每节得分为() A.7分B.8分C.9分D.10分 5.等腰三角形的两边长分别为3和6,则这个等腰三角形的周长为() A.12 B.15 C.12或15 D.18 6.如图,在平面直角坐标系中,菱形ABCD的顶点A,B在反比例函数 k y x =(0 k>,

x )的图象上,横坐标分别为1,4,对角线BD x ∥轴.若菱形ABCD的面积为45 2 , 则k的值为() A.5 4 B. 15 4 C.4D.5 7.如图,长宽高分别为2,1,1的长方体木块上有一只小虫从顶点A出发沿着长方体的外表面爬到顶点B,则它爬行的最短路程是() A.10B.5C.22D.3 8.将两个大小完全相同的杯子(如图甲)叠放在一起(如图乙),则图乙中实物的俯视图是(). A.B.C.D. 9.将一块直角三角板ABC按如图方式放置,其中∠ABC=30°,A、B两点分别落在直线m、n上,∠1=20°,添加下列哪一个条件可使直线m∥n( ) A.∠2=20°B.∠2=30°C.∠2=45°D.∠2=50°

2018年上海中考数学模拟试卷

2018年上海中考数学模拟试卷(一) 一. 选择题 1.下列实数中,无理数是() A .0 B . C .﹣2 D . 2数据5,7,5,8,6,13,5 的中位数是( ) .5; .6; .7 ; .8. 3. 如果将抛物线2 2y x 向下平移1个单位,那么所得新抛物线的表达式是() A. 2 (1) 2 y x B. 2 (1) 2y x C. 2 1y x D. 2 3 y x 4. 某校调查了20名男生某一周参加篮球运动的次数,调查结果如表所示,那么 这20名男 生该周参加篮球运动次数的平均数是( ) 次数 2 3 4 5 人数 2 2 10 6 A. 3次 B. 3.5次 C. 4次 D.4.5次 5、下列各统计量中,表示一组数据波动程度的量是……………………………………()A 、平均数;B 、众数;C 、方差;D 、频率. 6、如图,已知在⊙O 中,AB 是弦,半径OC ⊥AB ,垂足为点D ,要使四边形OACB 为菱形,还需要添加一个条件,这个条件可以是………………………………………………()A 、AD =BD ;B 、OD =CD ;C 、∠CAD =∠CBD ;D 、∠OCA =∠OCB . A. 1 4r B. 24 r C. 18 r D.2 8 r A B C D D C B A O

7、计算:_______. 8、方程 22 3x 的解是_______________ .9、如果分式 3 2x x 有意义,那么x 的取值范围是____________. 10. 如果12 a ,3 b ,那么代数式2a b 的值为 11. 不等式组 25 10 x x 的解集是 12. 如果关于x 的方程2 30x x k 有两个相等的实数根,那么实数k 的值是 13. 已知反比例函数k y x (0k ),如果在这个函数图像所在的每一个象限内, y 的值 随着x 的值增大而减小,那么k 的取值范围是 14. 有一枚材质均匀的正方体骰子,它的六个面上分别有 1点、2点、、6点 的标记,掷 一次骰子,向上的一面出现的点数是 3的倍数的概率是 15. 在ABC 中,点D 、E 分别是AB 、AC 的中点,那么ADE 的面积与 ABC 的面积的比是 16. 今年5月份有关部门对计划去上海迪士尼乐园的部分市民的前往方式进行调查,图1和图2是收集数据后绘制的两幅不完整统计图,根据图中提供的信息,那么本次调查的对象中选择公交前往的人数是

2018年中考科学模拟试题1(含答案)

慈溪市2018年初中毕业生学业水平模拟考试 科学试题 考生须知: 1.全卷分试题卷I、试题卷II和答题卷。试题卷共10页,有4个大题,33个小题。满分为180分,考试时间为120分钟。 2.请将学校、、班级、座位号、号分别填写在试题卷和答题卷的规定位置上。 3.答题时,把试题卷I的答案在答题卷上用2B铅笔涂黑、涂满。将试题卷II的答案用黑色字迹钢笔或签字笔书写,答案必须按照题号顺序在答题卷各题规定区域作答,做在试题卷上或超出答题区域书写的答案无效。 4.本卷可能用到的相对原子质量:H-1 C-12 O-16 Na-23 S-32 Cl-35.5 Ca-40 Ba-137 5.本试卷g取10N/kg。 试题卷Ⅰ 一、选择题(本题共15小题,第1~10小题,每小题4分,第11~15小题,每小题3分, 共55分。请选出每小题中一个符合题意的选项,不选、错选均不给分) 1.下图是《小蝌蚪找妈妈》水墨画邮票。下列关于图中生物的说法中正确的是 A.邮票中动物均用鳃呼吸 B.邮票中动物均属于恒温动物 C.邮票中虾、蟹属于软体动物 D.邮票中的鱼、乌龟、青蛙属于脊椎动物 2.下列各图所表达的相关科学容正确的是 A.过滤 B.称取氯化钠 C.光的折射 D.杠杆的力臂

3.某太空站的能量转化示意图如下图,下列有关说法错误的是 A.光电转换器中光能转化为电能 B.水电解系统中化学能转化为电能 C.在能量转化中水可以被循环利用 D.燃料电池系统可将化学能转化为电能 4.加热试管中的物质时,与防止试管炸裂无关的是 A.保持试管外壁干燥 B.试管夹夹在试管中部 C.先预热再对药品集中加热 D.加热固体时试管口略向下倾斜 5.下图是氢核聚变简图,请据图判断下列说法中正确的是 A.图中b核和c核的质子数不同 B.氢核聚变过程中元素种类不会改变 C.图中a和b分别代表不同种元素的原子核 D.原子弹主要是利用了核聚变释放出来的能量 6.下列有关生产实践的说法,错误的是 A.带土移植---减少根部损伤提高成活率 B.合理密植---充分利用太 C.移栽剪枝---降低蒸腾作用减少水分散失 D.树怕扒皮---导管受损减弱无机盐的运输 7.小科对新型LED灯带很好奇,取一段剖开后发现,灯带中的LED灯是串联后通过电源适配器接入照明电路(交流电)。取其中一只LED灯接在电池两端,灯不亮,对调电池正负极后灯亮了,用手试摸,点亮的灯几乎不发热。以下推断符合上述实验事实的是 A.LED灯主要是将电能转化为能 B.单只LED灯工作电压是220V C.灯带中一只LED灯断路后其他灯还能亮D.电源适配器将交流电转变为直流电8.从下列图片中不能获取的信息是 A.硅原子是由原子核和电子构成的 B.分子之间有间隔 C.水分子受热运动速率加快 D.构成物质的粒子有分子、原子和离子

中考冲刺物理模拟试题及答案(一)

中考冲刺模拟试题及答案(一) 注意事项:1.本卷共四大题23 小题,满分90 分。物理与化学的考试时间共120 分钟。 2.本卷试题中g 值均取10N / kg。 一、填空题(每空2 分,共26 分;将答案直接填写在横线上,不必写出解题过程) 1. 小明坐在行驶的汽车上,看到路旁的树木向后退去,他是以为参照物的;忽然闻到一阵烧香烟的味道,这是___ __现象,原来后面有一位乘客在抽烟,自己成为了“被动吸烟者”;这时乘务员走过来,吩咐乘客要系好安全带,小明明白这是为了防止汽车在刹车时由于__ __而对乘客造成伤害,于是,小明立即系上了安全带。 2.目前,制造中国自己航母的呼声越来越高,如图2所示是某位网友提供 的中国航母的设想图。一艘航母的舰载机飞离航母后,所受浮力将______(填 “增大”、“减小”、“不变”),航母将______(选填“上浮一些”、“下 沉一些”、“位置不变”)。 3. 2011年3月11日日本发生9级强震并引发海啸,导致了福岛核电站发 生泄漏,造成重大人员伤亡。“世界面临的每一个危险都能追究到科学,拯救世界的每一种手段都将来自科学。”也许在不远的将来我们能变害为宝。比如可以建立发电站利用海啸具有的能转化为能为人类服务。 4.我国名酒五粮液素有“三杯下肚浑身爽,一滴沾唇满口香”的赞誉,曾经获得世博会两届金奖。有一种精品五粮液,它的包装盒上标明容量500mL,(ρ酒=0.9×103 kg/m3),则它所装酒的质量为_______kg;若这酒喝掉半瓶,则剩下的半瓶酒的密度为_______ g/cm3。 5.如图2所示的电路,电源电压为6V,灯泡L1和L2分别标有“6V 6W”和 “6V 3W”字样。如果将S1、S2、S3分别换成电流表、电压表、电流表,则电 压表的示数为______V;如果将S l、S2、S3分别换成电压表、电流表、电压表, 则电流表的示数为______ A。 6.如图3一根绳子系着一个泡沫小球,悬挂在一个带电体A右边,小球静止 时与带电体A等高且不接触。泡沫小球除受到重力和绳的拉力外,还受到_______ 力的作用。请在图中画出泡沫小球受力示意图。 二、选择题(每小题3 分,共21 分;每小题给出的四个选项中,只有一个选项 是符合题意的,请将该选项的标号填在题后的括号内) 7.关于声现象的下列说法中正确的是 A.声音在真空中传播速度最大B.声音是由物体振动产生的C.声波不能传递能量D.男高音指的是响度大 图3 图2 图

2017年中考数学模拟冲刺卷 03(河南卷考试版)

【密卷】2017年河南中考模拟冲刺卷(三) 数学 (考试时间:100分钟试卷满分:120分) 注意事项: 1.本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。 2.回答第Ⅰ卷时,选出每小题答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑。如需改动,用橡皮擦干净后,再选涂其他答案标号。写在本试卷上无效。3.回答第Ⅱ卷时,将答案写在答题卡上。写在本试卷上无效。 4.考试结束后,将本试卷和答题卡一并交回。 第Ⅰ卷 一、选择题(本大题共10个小题,每小题3分,共30分.在每小题给出的四个选项中,只有一个选项是符合题目要求的) 1. 3 4 -的相反数是 A. 3 4 -B. 4 3 -C. 3 4 D.4 3 2.人类的遗传物质是DNA,DNA是一个很长的链,最短的22号染色体也长达30000000个核苷酸,数据30000000用科学记数法表示为 A.30×104B.3×107 C.0.3×107 D.3×108 3.下列图形中,既是轴对称图形,又是中心对称图形的是 A.B.C.

D . 4.下列计算正确的是 A .822-= B .()236-= C .42232a a a -= D .()2 35a a -= 5.下列说法中不正确的是 A .函数y =2x 的图象经过原点 B .函数y =1x 的图象位于第一、三象限 C .函数31y x =-的图象不经过第二象限 D .函数3y x =- 的值随x 的值的增大而增大 6.如图所示,将一个含30°角的直角三角板ABC 绕点A 旋转,使得点B ,A ,C ′在同一条直线上,则三角板ABC 旋转的角度是 A .90° B .60° C .150° D .120°7.某班10名学生校服尺寸与对应人数如下表所示: 尺寸(cm ) 160 165 170 175 180 学生人数(人) 1 3 2 2 2 则这10名学生校服尺寸的众数和中位数分别为 A .165,165 B .165,170 C .170,165 D .170,170 8.如图,△ABC 中,D 为AB 上一点,E 为BC 上一点,且AC =CD =BD =BE ,∠A =50°,则∠CDE 的度数为 A .50° B .51° C .51.5° D .52.5° 9.已知抛物线2y ax bx c =++(0b a >>)与x 轴最多有一个交点,现有以下四个结论: ①该抛物线的对称轴在y 轴左侧; ②关于x 的方程220ax bx c +++=无实数根;

2019上海中考数学二模各区18题专题.

2019各区二模填空18题 普陀18.如图7,AD 是△的中线,点E 在边AB 上,且DE ⊥AD ,将△BDE 绕着点 D 旋转,使得点B 与点C 重合,点 E 落在点 F 处,联结AF 交BC 于点 G ,如果 5 2 AE BE =,那么 GF AB 的值等于 . 崇明18.如图4 ,在ABC △中,已知AB AC =,30BAC ∠ =?,将ABC △绕着点A 逆时针 旋转30?,记点C 的对应点为点D ,AD 、BC 的延长线相交于点E .如果线段DE 那么边AB 的长为 . 奉贤18. 如图5,矩形ABCD ,AD =a ,将矩形ABCD 绕着顶点B 顺时针旋转,得到矩形 EBGF ,顶点A 、D 、C 分别与点E 、F 、G 对应(点D 与点F 不重合).如果点D 、E 、F 在同一条直线上,那么线段DF 的长是 .(用含a 的代数式表示) 长宁18.如下左图3,在ABC ?中,5==AC AB ,8=BC ,将ABC ?绕着点C 旋转, 点B A 、的对应点分别是点'A 、'B ,若点'B 恰好在线段'AA 的延长线上, 则'AA 的长等于 . 松江18.如上右图,已知Rt △ABC 中,∠ACB=90°,AC =8,BC =6.将△ABC 绕点B 旋转得到△DBE ,点A 的对应点D 落在射线BC 上.直线AC 交DE 于点F ,那么CF 的长为________. ABC 图7 A B C D E B C 图4 图3 B C (第18题图) C B A

闵行18.如图,在△ABC 中,AB = AC = 5 ,BC D 为边AC 上一点(点D 与点A 、C 不重合).将△ABC 沿直线BD 翻折,使点A 落在点E 处,联结CE .如果CE // AB , 那么AD ︰CD = . 青浦17.如图5,在矩形ABCD 中,AB =3,E 为AD 的中点,F 为CD 上一点,且DF =2CF , 沿BE 将△ABE 翻折,如果点A 恰好落在BF 上,则AD = . 18.我们把满足某种条件的所有点组成的图形,叫做符合这个条件的点的轨迹.如图6,在 Rt △ABC 中,∠C =90°,AC =8,BC =12,动点P 从点A 开始沿射线AC 方向以1个单位/秒的速度向点C 运动,动点Q 从点C 开始沿射线CB 方向以2个单位/秒的速度向点B 运动,P 、Q 两点分别从点A 、C 同时出发,当其中一点到达端点时,另一点也随之停止运动,在整个运动过程中,线段PQ 的中点M 运动的轨迹长为 . 徐汇 A B C (第18题图) 图6 D A B C 图5

中考模拟试题1

中考模拟试题1 学校______________ 班级____________ 姓名______________ 学号____________ 考号______________ ________________ 一、选择题:(3’*12=36’) 1、(3分) 如图,从山顶A 望地面C 、D 两点,它们的俯角分别为45°、30°,如果测得CD 为100m ,那么山高AB =( ) (A) 100m , (B)503 m (C) 502 (D)50(3+1)m 2、(3分) 在△ABC 中,∠C =90°,△ABC 面积为5cm 2 ,斜边长为4cm ,则tgA +ctgB 的值为( ) (A) 58 (B)516 (C)85 (D)16 5 3、(3分) 在ΔABC 中,若,0cos 231sin 2 =???? ??-+-B A 则∠C 的度数是( )。 (A) 750 (B) 600 (C) 450 (D) 300 4、(3分) 等边△ABC 的边长为1,现以BC 边所在直线为轴,将△ABC 旋转一周,则所得旋转体的表面积为( )

(A )3π (B )??? ? ?+233π (C )23π (D )??? ? ??+4323π 5、(3分) 在ΔABC 中,若cosAcosBcosC >0,则ΔABC 为( ). (A)锐角三角形(B)直角三角形 (C)钝角三角形 (D)不能确定 6、(3分) 在直角△ABC 中, CD 为斜边上的高,若AD =2,BD =8,则tgA 的值为( ) (A) 4 (B) 2 (C)21 (D)4 1 7、(3分) 一个圆锥的母线和底面直径相等,那么它的侧面展开图的圆心角是( ) (A )90° (B )180° (C )210° (D )由底面半径的大小而定 8、(3分) 如图,在半圆的直径AB 上取点C ,过C 作CD ⊥AB 交圆周于D ,CD 长为h ,则阴影部分的面积为( ) (A )31πh 2 (B )41πh 2 (C )51πh 2 (D )6 1πh 2 9、(3分) 图中,△ABC 为等腰直角三角形,∠B =90°,延长BC 到D ,使CD =AC ,则tg 63°30′的值为( ) (A) 2+1 (B)2-1 (C) 12+ (D) 12-

中考物理三轮中考冲刺模拟试题(一卷)附答案

最新中考物理冲刺试题 本卷试题中g 值均取10N /kg . 一、单选题(每题3分,共36分) 1、如图所示:物体乙放在水平地面上,在物体乙上再放一物体甲, 当用水平向右的拉力F 拉甲物体时,甲、乙两物体均保持静止,那 么乙物体受到的力的个数为( ) A 、2个 B 、3个 C 、4个 D 、5个 2、一台单缸四冲程柴油机转速为1200转/min ,则柴油机1s 内( ) A 、完成20个冲程,做功20次 B 、完成40个冲程,做功40次 C 、完成40个冲程,做功10次 D 、完成20个冲程,做功10次 3.如图所示的机械是人们在日常生活里常见的,其中能省距离的是( ) 4.一辆娱乐电瓶车,工作电压为24V ,工作电流为10A ,效率为80%,车和人的总重为2000N , 行驶时受到的阻力为车和人总重的0.1倍,那么该车匀速行驶120m 需多长时间?( ) A 、80秒 B 、100秒 C 、125秒 D 、150秒 5.已知在弹性限度内,弹簧的伸长量△L 与受到的拉力F 成正比,用公式F=k ·△ L 表示,其中k 为弹簧的劲度系数(k 为一常数)。现有两个轻弹簧L 1和L 2,它 们的劲度系数分别为k 1和k 2,且k 1=3k 2,现按如图所示方式用它们吊起滑轮和重 物,如滑轮和重物的重力均为G ,则两弹簧的伸长量之比△L 1:△L 2为( ) A 、1:1 B 、3:2 C 、2:3 D 、3:4 6.质量相等的甲、乙两实心小球,密度之比ρ甲:ρ乙 =3:2,将它们都放入水中,静止时两球受到的浮力之比为F 甲:F 乙=4:5,则乙球的密度为 ( ) A 、2ρ水 /3 B 、3ρ水 /4 C 、5ρ水/ 6 D 、4ρ水 /5

【冲刺卷】中考数学模拟试卷(及答案)

【冲刺卷】中考数学模拟试卷(及答案) 一、选择题 1.如图,矩形ABCD中,AB=3,BC=4,动点P从A点出发,按A→B→C的方向在AB 和BC上移动,记PA=x,点D到直线PA的距离为y,则y关于x的函数图象大致是() A.B. C.D. 2.下列几何体中,其侧面展开图为扇形的是( ) A.B.C.D. 3.在“朗读者”节目的影响下,某中学开展了“好书伴我成长”读书活动.为了解5月份八年级300名学生读书情况,随机调查了八年级50名学生读书的册数,统计数据如下表所示: 册数01234 人数41216171 关于这组数据,下列说法正确的是() A.中位数是2 B.众数是17 C.平均数是2 D.方差是2

4.某商店有方形、圆形两种巧克力,小明如果购买3块方形和5块圆形巧克力,他带的钱会差8元,如果购买5块方形和3块圆形巧克力,他带的钱会剩下8元.若他只购买8块方形巧克力,则他会剩下()元 A.8B.16C.24D.32 5.肥皂泡的泡壁厚度大约是0.0007mm,0.0007用科学记数法表示为() A.0.7×10﹣3B.7×10﹣3C.7×10﹣4D.7×10﹣5 6.点 P(m + 3,m + 1)在x轴上,则P点坐标为() A.(0,﹣2)B.(0,﹣4)C.(4,0)D.(2,0) 7.下列命题中,真命题的是() A.对角线互相垂直的四边形是菱形 B.对角线互相垂直平分的四边形是正方形 C.对角线相等的四边形是矩形 D.对角线互相平分的四边形是平行四边形 8.如图,是由四个相同的小正方体组成的立体图形,它的左视图是() A.B.C.D. 9.如图中的几何体是由一个圆柱和个长方体组成的,该几何体的俯视图是( ) A.B.C.D. 10.若正比例函数y=mx(m≠0),y随x的增大而减小,则它和二次函数y=mx2+m的图象大致是()

2020年上海市中考数学模拟试卷(含答案)

2020年上海市中考数学模拟试卷 含答案 一、选择题(本大题共6题,每题4分,满分24分) 1.在平面直角坐标系中,抛物线y=﹣(x﹣1)2+2的顶点坐标是() A.(﹣1,2)B.(1,2)C.(2,﹣1)D.(2,1) 2.在△ABC中,∠C=90°,AB=5,BC=4,那么∠A的正弦值是() A.B.C.D. 3.如图,下列能判断BC∥ED的条件是() A. = B. = C. = D. = 4.已知⊙O1与⊙O2的半径分别是2和6,若⊙O1与⊙O2相交,那么圆心距O1O2的取值范围是() A.2<O1O2<4 B.2<O1O2<6 C.4<O1O2<8 D.4<O1O2<10 5.已知非零向量与,那么下列说法正确的是() A.如果||=||,那么=B.如果||=|﹣|,那么∥ C.如果∥,那么||=|| D.如果=﹣,那么||=|| 6.已知等腰三角形的腰长为6cm,底边长为4cm,以等腰三角形的顶角的顶点为圆心5cm 为半径画圆,那么该圆与底边的位置关系是() A.相离 B.相切 C.相交 D.不能确定 二、填空题(本大题共12题,每题4分,满分48分) 7.如果3x=4y,那么= . 8.已知二次函数y=x2﹣2x+1,那么该二次函数的图象的对称轴是. 9.已知抛物线y=3x2+x+c与y轴的交点坐标是(0,﹣3),那么c= . 10.已知抛物线y=﹣x2﹣3x经过点(﹣2,m),那么m= .

11.设α是锐角,如果tanα=2,那么cotα=. 12.在直角坐标平面中,将抛物线y=2x2先向上平移1个单位,再向右平移1个单位,那么平移后的抛物线解析式是. 13.已知⊙A的半径是2,如果B是⊙A外一点,那么线段AB长度的取值范围是. 14.如图,点G是△ABC的重心,联结AG并延长交BC于点D,GE∥AB交BC与E,若AB=6,那么GE= . 15.如图,在地面上离旗杆BC底部18米的A处,用测角仪测得旗杆顶端C的仰角为30°,已知测角仪AD的高度为1.5米,那么旗杆BC的高度为米. 16.如图,⊙O1与⊙O2相交于A、B两点,⊙O1与⊙O2的半径分别是1和,O1O2=2,那么两圆公共弦AB的长为. 17.如图,在梯形ABCD中,AD∥BC,AC与BD交于O点,DO:BO=1:2,点E在CB的延长线上,如果S△AOD:S△ABE=1:3,那么BC:BE= . 18.如图,在△ABC中,∠C=90°,AC=8,BC=6,D是AB的中点,点E在边AC上,将△ADE

人教版中考语文模拟试卷及答案(一)

人教版中考语文模拟试题(一)及答案 一、积累及运用(每题3分,共18分) 1.下列各项中字形和加点字字音全都正确的一项是() A、阻遏.(è)诘.问(jí)愧怍.(zuò)张慌失措.(cuò) B、仄.歪(zè)嶙峋.(xún)干涸.(gù)唯妙唯肖.(xiào) C、狼藉.(jí)污秽.(huì)酬和.(hé)相行见绌.(chù) D、妖娆.(ráo)招徕.(lái)狡黠.(xiá)强聒.不舍(guō) 2.下列词语中,没有错别字的一项是() A.轩昂沉缅恣睢鳞次栉比 B.告罄蓦然威慑根深蒂固 C.潺弱扶掖惊悚睇泗横流 D.亵赌鸿鹄睥睨独具惠眼 3.下列各句中,加点的成语使用恰当 ....的一项是() A.便民箱、窨井盖、金属垃圾桶、名花名草不胫而走 ....,这些发生在城市里的不文明现象,令人气愤。 B.学问是寸积铢累 ....而来的,常是各有疆域独自为政的。 C.他们原来是形影不离的好朋友,毕业后各自回到故乡,从此便分道扬镳 ....了。 D.近年来,在种种灾害面前,各级政府防患未然 ....,及时启动应急预案,力争把人民的生命财产损失降到最低限度。 4.下列句子中没有语病 ....的一项是() A.参加第二十一届冬奥会的中国体育代表团载誉归来,勇夺五金实现历史突破。 B.经过国庆阅兵大典后,使许多年轻人萌发了成为一个军人的愿望。 C.能否贯彻落实科学发展观,无疑对构建和谐社会,促进可持续发展具有重大的意义。 D.不少学生偏食、挑食,导致蛋白质的摄入量偏低,钙、锌、铁等营养素明显不足,营养状况不容令人乐观。 5.填入下面横线上的句子,排列恰当的一项是()

要取得成功,首先要学会低头。。因此,你再优秀,再有名,也没有人愿意与你合作。 ①你瞧不起别人,人家干吗要瞧得起你呢? ②这恰如演奏一支高昂的曲子,起首往往是低调的。 ③什么时候都高昂着头,实际上是抬高自己,看低别人。 ④低头,既是正确认识自己,也是对他人的一种尊重。 A.②④③① B.②③④① C.④①③② D.④②①③ 6.下列关于名著中人物的表述,不正确的一项是() A.林黛玉因晴雯不开门一事错怪宝玉,心中怨气无处发泄。次日,又看到花落,勾起伤春愁思,就把残花落瓣掩埋起来,一首《葬花吟》道尽了她内心的酸楚。 B.简·爱从小父母双亡,寄人篱下,有着与同龄人不一样的遭遇,这养成了她自尊、坚强、独立的个性。 C.保尔在一次激战中头部受重伤。在养病期间,他认识了冬妮娅,后来冬妮娅成了他的妻子。 D.赵云是刘备手下有勇有谋的大将,他曾两次救阿斗。一次是长坂坡单骑救阿斗,另一次是孙夫人要带年幼的阿斗回东吴,赵云截江夺阿斗,为刘氏政权立下了汗马功劳。 二、古诗词鉴赏(3分) 次北固山下 王湾 客路青山外,行舟绿水前。潮平两岸阔,风正一帆悬。 海日生残夜,江春入旧年。乡书何处达?归雁洛阳边。 7.找出下列说法中不正确的一项( ) A.首联先写“客路”,后写“行舟”,写出了人在他乡、神驰故里的漂泊羁旅之情。 B.诵读颔联时应该使用上扬的语调,体现诗句平野开阔、大江直流的宏大气势。 C.颈联妙在作者无意说理,却通过拟人手法,在描写景物和节令之中,蕴含着一种自然的理趣。

2020中考数学冲刺模拟试题含答案

2020年中考数学模拟试题(二) 一、选一选,相信自己的判断!(本大题共12小题,每小题3分,共36分.在每小题给出的四个选项中只有一项是符合题目要求的,不涂、错涂或涂的代号超过一个,一律得0分) 1.2-的相反数是 A. 2 B. -1 C. 1 2 D. 1 2 - 2.下列计算正确的是 A .a 2·a 3=a 6 B .(x 3)2=x 6 C .3m +2n =5mn D .y 3·y 3=y 3.如图所示的几何体是由一些小立方块搭成的,则这个几何体的俯视图是 4.已知⊙O 1的半径是4cm ,⊙O 2的半径是2cm ,O 1O 2=5cm ,则两圆的位置关系是

A .外离 B .外切 C .相交 D .内含 5.下列命题:①正多边形都是轴对称图形;②通过对足球迷健康状 况的调查可以了解我国公民的健康状况;③把a a --21 ) 2(根号外的因式移到根号内后,其结果是a --2;④如果一个角的两边与另一个角的两边分别平行,那么这两个角相等.其中真命题的个数有 个 个 个 个 6.如图,数轴上A 、B 两点表示的数分别为-1和3,点B 关于点A 的对称点为C ,则点C 所表示的数为 A .―2― 3 B .―1―3 C .―2+ 3 D .1+3 7.如图,均匀地向此容器注水,直到把容器注满.在注水的过程中, 下列图象能大致反映水面高度h随时间t变化规律的是

A B 8.在△ABC 中,∠C=90o,BC =4cm ,AC =3cm .把△ABC 绕点A 顺时针旋转90o后,得到△AB 1C 1(如图所示),则点B 所走过的路径长为 A .52cm B . 5π 4cm C . 5π 2 cm D .5πcm 9.如图,有一矩形纸片ABCD ,AB =6,AD =8,将纸片折叠使AB 落在AD 边上,折痕为AE ,再将△ABE 以BE 为折痕向右折叠,AE 与CD 交于点F ,则 CF CD 的值是 A .1 B . 1 2 C . 1 3 D . 1 4 A A A B B B C D C E D E C D

中考最后冲刺模拟数学试卷(含答案)

中考数学模拟试卷(最后冲刺1) 一、选择题(本大题5小题,每小题3分,共15分)每小题列出的四个选项中,只有一个是正确的) 1.下列式子中结果是负数的是 ( ) A. -(-7); B.-∣-2∣; C. -(-3)3 ; D. 3-2 2.一种细菌的半径是0.000045米,该数字用科学记数法表示正确的是( ). A.5 105.4? B.6 1045? C.5 10 5.4-? D.4.5×10 -4 3.在艺术字中,有些字母是中心对称图形,下面的5个字母中,是中心对称图形的有( ) C Q I N A A. 2个 B. 3个 C . 4个 D. 5个 4.不等式组??? ??≤<-15 112x x x 的解集在数轴上表示正确的是 ( ) 5.图(1),⊙O 的直径AB=10,弦CD ⊥AB 于M ,BM=4,则弦CD 为( ) A.62 B.64 C.215 D.210 二、填空题(本大题共5小题,每小题4分,共20分)把下列各题的正确答案填写在横线上。 6.函数y= 3 1+x 自变量x 的取值范围是 7.因式分解:=+-a ab ab 22 . 8.如果点(45)P -,和点()Q a b ,关于y 轴对称,则a 的值为 9.一组数据1,6,x ,5,9的平均数是5,那么这组数据的中位数是 . 10.方程2 2310--=x x 的两根为1x 、2x ,则12(1)(1)x x --的值为 B C M O A D . 图(1)

三、解答题(一)(本大题5小题,每小题6分,共30分) 11.(本题满分6分)计算:12-4cos30°-(π-1)0+2-1 12.(本题满分6分)解方程: 13.(本题满分6分)先化简代数式22443 (1)11 x x x x -+÷--+,然后选取一个合适..的x 代入求值. 2 1 221-=+--x x x

2020届上海市中考数学模拟试卷(有答案)(Word版)(已审阅)

上海市中考数学试卷 参考答案与试题解析 一、选择题(本大题共6小题,每小题4分,共24分) 1.下列实数中,无理数是() A.0 B.C.﹣2 D. 【分析】根据无理数、有理数的定义即可判定选择项. 【解答】解:0,﹣2,是有理数, 数无理数, 故选:B. 【点评】此题主要考查了无理数的定义,注意带根号的要开不尽方才是无理数,无限不循环小数为无理数.如π,,0.8080080008…(每两个8之间依次多1个0)等形式. 2.下列方程中,没有实数根的是() A.x2﹣2x=0 B.x2﹣2x﹣1=0 C.x2﹣2x+1=0 D.x2﹣2x+2=0 【分析】分别计算各方程的判别式的值,然后根据判别式的意义判定方程根的情况即可.【解答】解:A、△=(﹣2)2﹣4×1×0=4>0,方程有两个不相等的实数根,所以A选项错误; B、△=(﹣2)2﹣4×1×(﹣1)=8>0,方程有两个不相等的实数根,所以B选项错误; C、△=(﹣2)2﹣4×1×1=0,方程有两个相等的实数根,所以C选项错误; D、△=(﹣2)2﹣4×1×2=﹣4<0,方程没有实数根,所以D选项正确. 故选D. 【点评】本题考查了根的判别式:一元二次方程ax2+bx+c=0(a≠0)的根与△=b2﹣4ac有如下关系:当△>0时,方程有两个不相等的实数根;当△=0时,方程有两个相等的实数根;当△<0时,方程无实数根. 3.如果一次函数y=kx+b(k、b是常数,k≠0)的图象经过第一、二、四象限,那么k、b应满足的条件是() A.k>0,且b>0 B.k<0,且b>0 C.k>0,且b<0 D.k<0,且b<0 【分析】根据一次函数的性质得出即可. 【解答】解:∵一次函数y=kx+b(k、b是常数,k≠0)的图象经过第一、二、四象限,

中考语文冲刺模拟试卷含答案(一)

中考语文冲刺模拟试卷(一) 一、语言积累 1.下面划线字的注音全都正确的一项是() A. 拆散chāi灵柩jiù 千山万壑huò 迥乎不同jiǒng B. 脑髓shuǐ哂笑shěn无动于衷chōng恍然大悟huǎng C. 阻遏è 谀词yú 慷慨以赴kǎi尽态极妍yán D. 黝黑yōu瞰望kàn 引颈受戮chuō咬文嚼字jué 2.下面书写没有错别字的一项是() A. 嶙峋覆盖心如铁似物竟天择 B. 幻影遮弊引精据典迫不及待 C. 协奏心絮万恶不赦勇往值前 D. 捶打疲倦悠游自在束手无策 3.下列句子中划线词语使用正确的一项是() A. 大家要把这个问题迅速反应给上级有关部门。 B. 我们要不断创造劳动光荣、劳动致富的良好社会氛围,反对那种等、靠、要的不良习气。 C. 老人们行云流水般的太极拳表演,引来了人们阵阵喝彩。 D. 他的计算机技术非常熟练,达到了为所欲为的程度。 4.没有语病的一项是() A. 现在各个学校都加强了法制教育,以防止青少年学生不违法、犯法。 B. 汪国真的诗歌曾经放飞了一代人的青春梦想。 C. 为了减少字数,我不得不忍痛割爱,把本文略微稍加修改了一些。 D. 通过开展赛龙舟活动,可以使屈原伟大的爱国主义精神发扬光大。 5.在下面语段的空白处填入恰当的语句,正确的一项语序是() 怨天尤人不仅是一种懦弱,_________。__________,____________,__________。一个真正意义上的强者并不是一个一帆风顺的幸运儿,必然要经历各种痛苦和挑战,而战胜一切困难的人首先必须战胜自己,战胜自己的前提就是反省自身。 ①不但掩盖了自己不能面对的现实 ②更是一种不成熟的表现 ③还留下了将来可能重蹈覆辙的隐患 ④而不客观地责怪他人还会衍生出新的矛盾 A. ②①③④ B. ④②①③ C. ④①③② D. ②④①③ 6.下列与推荐阅读名著相关的说法,正确的一项是() A. 《朝花夕拾》、《格列佛游记》、《钢铁是怎样炼成的》作者国籍依次是中国、德国、俄国。 B. 罗切斯特、阿尔宾娜、阿廖沙等人物分别出自《海底两万里》、《名人传》、《童年》。 C. 《骆驼祥子》长于写人,善于调动各种手法塑造人物;《伊索寓言》广泛采用比喻手法,主观生动地叙述一个故事,最后画龙点睛地揭示蕴含的道理。 D. 《简·爱》以第一人称叙述,把女主人的两个基本动机“对人间自由幸福的渴念和对更高精神境界的追求”做了完美演绎;《傅雷家书》通过书信谈心的方式对儿子的生活和艺术修养进行悉心指导,凝聚了作者对儿子、对祖国深厚的爱。

相关主题
文本预览
相关文档 最新文档