2012年重点高中提前招生英语模拟试题
2012年重点高中自主招生英语模拟试题
(满分100分)
一、单项选择(共20小题;每小题1分,满分20分)
( )1. It is generally considered unwise to give a child he or she wants.
A. however
B. whatever
C. whichever
D. whenever
( )2. ---- May I have a look at the menu first? ---- Of course, __________, sir.
A. don’t worry
B. it doesn’t matter
C. enjoy yourself
D. take your
time
( )3. I had to buy ______these books because I didn’t know which one was the best.
A. both
B. none
C. neither
D. all
( )4. It was the man ________ on the bed with his eyes open who _______ the book open on the
desk just now.
A. lain; lay
B. lying; laid
C. lay; lay
D. lying; lied
( )5. The teacher told us _____________.
A. light traveled as fast as sound
B. light traveled faster than sound
C. light travels as fast as sound
D. light travels much faster than sound
( )6. This is the most beautiful picture _______ I have seen.
A. that
B. which
C. whose
D. what
( )7. --Oh, you are here. I’m looking for you all the morning .________? --To the library.
A. Where have you gone
B. Where will you go
C. Where are you going
D. Where have you been
( )8. This T-shirt is very nice , but it ____ too much.
A. spends
B. pays
C. takes
D. costs
( )9. The naughty boys were made ____ their maths homework the next day.
A. handing up
B. hand out
C. to hand in
D. to handing off ( )10. Shanghai is larger than ________ in China.
A. any city
B. all the cities
C. some other cities
D. any other city ( )11. Don’t think about it _______. I’m sure you will forget it _______.
A. any more, long before
B. any more, before long
C. any longer, long ago
D. any longer, long before
( )12. _________, we would have finished the work on time.
A. Had Jim come
B. Jim had come
C. If had Jim come
D. If Jim has come ( )13 .---Excuse me, where’s the West Hill Farm, please?
---Go the forest and the foot of the mountain you will find it .
A. through, at
B. across, at
C. through, under
D. past, under
( )14. The teacher said that she ____ us to the park the next day.
A. will take
B. has taken
C. would take
D. is taking
( )15. I have never seen ______ beautiful place.
A. so a
B. a so
C. such a
D. a such
( )16. The window is broken and needs ______. –I think so. They can hardly keep out the
cold now.
A. repairing
B. to repair
C. repaired
D. be repaired
( )17. There ____ a number of animals in the zoo. The number of them ____ two thousand.
A. is, are
B. are, is
C. is, is
D. are, are
( )18._______ more time, he’ll make a first-class tennis player.
A. Having given
B. To give
C. Giving
D. Given
( )19. ---Oh, I had a terrible toothache.
---Y ou’d better _______ a doctor and have your bad to oth ____ out.
A. to see; pulling
B. see; pulled
C. seeing, pulling
D. saw; pulled
( )20. -Y ou haven’t been to the West Lake in Hangzhou, have you?
-______. How I wish to go there!
A. Yes, I have
B. Y es, I haven’t
C. No, I have
D. No, I haven’t
二、完型填空(15分)
阅读下面短文,掌握其大意,然后从短文后所给各题的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项。
In one way of thinking. failure is part of life. In 21 way, failure may be a way towards success. The ―Spider-story‖ is often 22 .Robert Bruce , leader of the Scots in the 13 th century, was hiding in a cave from the English. He watched a spider 23 a web. The spider tried to reach across a rough 24 in the rock. He tried six times without success .On the 25
time he made it and went on to make his web. Bruce is said to have been encouraged by this and
to have gone on to 26 the English . Edison , the inventor of the light bulb, made 27 models that failed before he found the right way to make one. Once he was asked 28 he kept on trying to ma ke a new type of battery when he had failed so often, he replied, ―Failure? I have 29 failure. Now I know 50,000 ways it won't 30 ‖.
So what? First,always think about your failure. What caused 31 ?Were conditions right? Were you in top from yourself? What can you change? So things will go 32 next time.
Second, is the goal you're trying to reach the right one? Try to do some 33 about what your real goals may be. Think about this question. ―If I do succeed in this, where will it get me?" This may help you prevent failure in things you shouldn't be doing any way.
The third thing to keep in 34 about failure is that it's a part of life. Learn to ―live with yourself" even though you may have 35 .
( )21. A. other B. another C. first D. second
( )22.A. told B. said C. talked D. spoken
( )23. A. doing B. taking C. making D. playing
( )24.A. room B. house C. place D. soil
( )25. A. tenth B. sixth C. eighth D. seventh
( )26.A. save B. help C. defeat D. kill
( )27.A. hundred B. hundreds C. hundred of D. hundreds of ( )28. A. why B. when C. what D. who
( )29. A. not B. no C. never D. nothing
( )30.A. do B. make C. took D. work
( )31.A. one B. it C. that D. this
( )32.A. high B. large C. right D. bright
( )33.A. Thinking B. shopping C. reading D. cleaning ( )34.A. heart B. eyes C. ears D. mind
( )35.A. failed. B. succeeded C. finished D. passed
三、阅读理解(本题有20小题,每小题2分,共计40分)
阅读下面四篇材料,从四个选项中选出一个最佳答案。
(A)
Dinner customs are different around the world. If you are a dinner guest in Ghana, this information will help you.
In Ghana dinner is usually from four in the afternoon to six in the evening. But there are no strict rules about time in Ghana. Whenever a guest arrives, a family offers food.
When you go to a home, the host takes you to the living room first. At this time everyone welcomes you. Then you go to the dinner room. There you wash your hands in a bowl of water. All the food is on the table.
In Ghana you usually eat with your fingers. Y ou eat from the same dish as everyone else. But you eat from one side of the dish only. It is not polite to get food from the other side of the dish. After dinner, you wash your hands again in a bowl of water.
Most meals in Ghana have a dish called fufu. People in Ghana make fufu from the powder of some plants. Sometimes they cut the fufu with a saw because it is very hard and like rubber. Y ou must chew fufu well, or you can get sick. Y ou eat fufu with the fingers of your right hand only. ( )36.In the fourth paragraph, the writer wants to tell us_ _.
A. what to eat in Ghana
B. how much time to spend on a dinner
C. the way of eating
D. different food at a dinner
( )37.If you are dinner guest to a family in Ghana, you’re first__ .
A. told some strict rules about dinner
B. taken to the dining- room
C. taken to the living room
D. told to wash your hands
( )38. The word ―chew‖ in the last paragraph means___
A. smell
B. taste
C. press with your hands
D. crush with your teeth
( )39. At a dinner you eat food from__ .
A. the top of a dish
B. the other side of the dish
C. the dish only for you
D. just one side of a dish
( )40. In Ghana,__ _.
A. dinner is always at six
B. rules for dinner time are not strict
C. a family offers food only at four
D. you don’t have to wash your hands aga in after dinner
B
Astronomers can tell just how hot the surface of the moon gets. The side of the moon toward the sun gets two degrees hotter than boiling water. The night side reaches 243 degrees below zero.
In a lunar eclipse the earth's shadow falls on the moon. Then the moon's temperature may drop 300 degrees in a very short time.
A temperature change like this cannot happen on the earth. Why does it happen on the moon?Astronomers know that the surface of the moon is dust. On the earth,the rocks store heat from the sun. When the sun goes down,the rocks stay warm. But the dust of the moon cannot store heat. So when the moon gets dark,the heat escapes quickly. The moon gets very cold. ( )41. Astronomers have found that the moon's surface is ______.
A. always hotter than boiling water
B. either very hot or very cold
C. usually many degrees below zero
D. about the same as that of the earth
( )42. During a lunar eclipse,the moon is ______.
A. turned away from the sun
B. in the shadow of the sun
C. in the shadow of the earth
D. in direct sunlight
( )43. Temperatures on the moon change ______.
A. very quickly
B. by only a few degrees
C. very slowly
D. only when there is an eclipse
( )44. Temperatures on the earth change ______.
A. less than those on the moon
B. more slowly than those on the moon
C. more quickly than those on the moon
D. Both A and B
( )45. The surface of the moon is ______.
A. rock that stores heat
B. dust that stores heat
C. dust that cannot store heat
D. rock that does not store heat
C
The Internet has led to a huge increase in credit-card fraud. Y our card information could even be for sale in an illegal web site(非法网站).
Web sites offering cheap goods and services should be regarded with care.
On-line shoppers who enter their credit-card information may never receive the goods they thought they bought. The thieves then go shopping with your card number —or sell the information over the Internet. Computers hackers have broken down security systems, raising questions about the safety of cardholder information. Several months ago, 25, 000 customers of CD Universe, an on-line music retailer(零售商), were not lucky. Their names, addresses and credit-card numbers were posted on a Web site after the retailer refused to pay US $157, 828 to get back the information.
Credit-card firms are now fighting against on-line fraud. Mastercard is working on plans for Web —only credit card, with a lower credit limit. The card could be used only for shopping on-line. However, there are a few simple steps you can take to keep from being cheated.
Ask about your credit-card firm’s on-line rules: Under British law, cardholders have to pay the first US $78 of any fraudulent spending.
And shop only at secure sites; Send your credit-card information only if the Web site offers advanced secure system.
If the security is in place, a letter will appear in the bottom right-hand corner of your screen. The Website address may also start https: //—the extra ―s‖ stands for secure. If in doubt, give your credit-card information over the telephone.
Keep your password safe: Most on-line sites require a user name and password before placing an order. Treat your passwords with care.
( )46. What do most people worry about the Internet according to this passage?
A. A lot of stolen credit-cards were sold on the Internet.
B. Fraud on the Internet.
C. Many Web sites are destroyed.
D. Many illegal Web sites are on the Internet.
( )47. What is the meaning of ―fraud‖?
A. Cheating.
B. Sale.
C. Payment.
D. Safety.
( )48. How can the thieves get the information of the credit card?
A. The customers give them the information.
B. The thieves steal the information from Web sites.
C. The customers sell the information to them.
D. The thieves buy the information from credit-card firms.
( )49. How many pieces of advice does the passage give to you?
A. Four.
B. Three.
C. Five.
D. Six.
( )50. Y ou are shopping on the site: http: // www. Shopping. com, and you want to buy a TV set, what does this article suggest to do?
A. Order the TV set at once.
B. Do not buy the TV set on this site.
C. E-mail the site your credit-card information.
D. Tell the site your password and buy the TV set for you.
D
There was a story many years ago of a school teacher--- Mrs. Thompson. She told the children on the first day that she loved them all the same. But that was a lie. There in the front row was a li ttle boy named Teddy Stoddard. He didn’t play well with the other children and he always needed a bath. She did not like him.
Then Mrs. Thompson got to know that Teddy was actually a very good boy before the death of his mother. Mrs. Thompson was ashamed of herself. She felt even worse when, like all her other students, Teddy brought her a Christmas present too. It was his mother’s perfume(香水)。
Teddy said, ―Mrs. Thompson, today you smell just like my Mom used to.‖ After the children left she cried for at least an hour. On that very day, she stopped teaching reading, writing and math. Instead, she began to teach children.
Mrs. Thompson paid particular attention to Teddy. The boy’s mind seemed to come alive. The more she encourage him, the faster he improved. By the end of the sixth grade, Teddy had become one of the smartest children in the class.
Six years went by before she got a note from Teddy. He wrote that he had finished high school, third in his class, and she was still the best teacher he ever had in his whole life. He went to college. Mrs. Thompson got two more letters from him with the last one signed, Theodore F. Stoddard, M. D.(医学博士).
The story doesn’t end there. On his wedding day, Dr. Stoddard whispered in Mrs. Thompson’s ear, ―Thank you, Mrs. Thompson, for believing in me. Y ou made me feel important and showed me that I could make a difference.‖
Mrs. Thompson, with tears in her eyes, whispered back, ―Teddy, you have it all wrong. Y ou were the one who taught me that I co uld make a difference. I didn’t know how to teach until I met you.‖
( )51. What did Mrs. Thompson do on the first day of school?
A. She made Teddy feel ashamed.
B. She told the class something untrue about herself.
C. She changed Teddy’s seat t o the front row.
D. She asked the children to play with Teddy.
( )52. What did Mrs. Thompson find out about Teddy?
A. He often told lies.
B. He was good at math.
C. He needed motherly care.
D. He enjoyed playing with others.
( )53. Why did Mrs. Thompson feel even worse ?
A. Because her students didn’t like her.
B. Because Teddy brought her his mother’s perfume as Christmas present.
C. Because she was very ill.
D. Because she couldn’t do well in her teaching.
( )54. In what way did Mrs. Thompson change?
A. She taught fewer school subjects.
B. She became stricter with her students.
C. She no longer liked her job as a teacher.
D. She cared more about educating
students.
( )55. Why did Teddy thank Mrs. Thompson at his wedding?
A. She had kept in touch with him.
B. She had given him encouragement.
C. She had sent him Christmas presents.
D. She had taught him how to judge
people.
五、书面表达(共15分)
某英语杂志社―中学生专栏‖在举办英语征文比赛。请你根据下表所列的内容要点,用英
语Learn to smile 为题写一篇短文,参加比赛。 注意:1.词数 90左右。
2.短文的开头已为你写好,不计入总词数。
3.参考词汇:自信confidence(n.),confident(adj.);打败beat.
4.短文须包括所有内容要点,不要逐字翻译,可适当发挥,使短文连贯,通顺。
Learn to smile
Smile is an attitude(态度)to life. _______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________
学会对自己微笑
1.生活中会有不愉快的事,如考试不及格等等
2.使你自信;
3.击败你的人有时是你自己; 学会对他人微笑
使人与人更亲近 微笑是一种语言
人人都能懂
2010年重点高中提前提前招生英语模拟考试
(参考答案)
一、单项选择(20分,共20小题)
答案 D B D B D A D D C D 答案 B A A C C A B D B D
二、完形填空(15分,共15小题)
答案 B A C C D C D A B D 答案 B C A D A
三、阅读理解(40分,共20小题)
答案 C C D D B B C A D C 答案 B A B A B B C B D B
五、书面表达(共15分)
One possible version:
Learn to smile
Smile is an attitude to life. In our life, there may be something unpleasant.
For example, you fail in an exam; or another time, you are misunderstood by your friends. These unpleasant things may make you feel bad. Then what will you do?
Why not learn to smile? Smiling to yourself can bring back your confidence. Sometimes, the greatest enemy is yourself; that’s to say, sometimes, you are beaten by yourself. We should also learn to smile to others. It will help us to get closer to others. Smile is the most widely understood language.
全国重点高中提前招生考试全真卷1
全国重点高中提前招生考试全真卷(一) 3.课本中的图表、数据等可以提供很多信息.下面有关的说法正确的是() ①根据相对分子质量可比较气体的密度大小 ②“酸、碱、盐的溶解性表”是判断复分解反应能否发生的依据之一 ③根据不同物质的溶解度曲线图,可确定混合溶液的分离方法 ④根据某元素的原子结构示意图可判断该元素原子核内中子的数目 A.①②④B.①③④C.②③④D.①②③ 4.某水溶液中含有以下离子中的若干种:K+、Cl-、Zn2+、Ca2+、SO42-、CO32-,现取两份100mL 溶液进行如下实验: 溶液有沉淀产生. (1)第一份加入AgNO 3 溶液后,得沉淀物6.63g,经足量硝酸洗涤、干燥后,沉淀质量为(2)第二份加足量BaCl 2 4.66g,在所得滤液中加入AgNO3溶液有沉淀产生. 根据上述实验,以下推测不正确的是() A. Cl- 一定存在 B. SO42-和CO32- 一定存在,且二者的个数比为2:1 C. Zn2+和Ca2+一定不存在 D. 100mL溶液中K+的质量不小于2.34g 5.等质量的下列固体物质分别与一定质量的稀盐酸(溶质质量分数相同)恰好完全反应,下列说法正确的是() A.金属Al和Mg比较,Mg反应速度快,但生成氢气的质量少 B.Mg和MgO比较,Mg消耗的盐酸的质量少,反应后溶液中溶质的质量分数小 C.碳酸钠与碳酸氢钠比较,碳酸氢钠反应速度快,反应的稀盐酸的质量少 D.CuO与Cu(OH)2比较,反应后溶液中的溶质的质量相等,溶液质量也相等 6.根据事物的某些相似性类推其他的相似性,并预测类似的可能性,是我们经常使用的一种思维方法。以下类推结果与实际相符的是() ①氧化物中都含有氧元素,含有氧元素的化合物都是氧化物; ②同一种元素的粒子质子数相同;质子数相同的粒子一定属于同种元素; ③氢氧化钠溶液中有OH-,能与酸反应,氢氧化钾溶液中也有OH-,也能与酸反应; ④盐中含有金属离子和酸根离子,NH4NO3中没有金属离子,不属于盐类 ⑤收集比空气轻的气体可用向下排空气法,能用向下排空气法的气体一定比空气轻;A.②③⑤B.③⑤C.①③④D.②③④ 7.向100g质量分数为3.65%的盐酸中逐滴加入4%的氢氧化钠溶液,同时测定有关数据下列图象正确的是(横坐标为每次加入氢氧化钠溶液的量)( ) 8.两个或多个同种含氧酸分子之间可以脱水形成相对分子质量更大的酸,如磷酸H3PO4可形成H4P2O7或H5P3O10等.下列物质不属于硫酸(H2SO4)脱水后形成的是()A.H2S2O7B.H2S3O10C.H2S2O8D.H2S4O13
重点中学提前招生考试选拔试卷--和详细答案
重点中学提前招生考试选拔模拟试卷 本卷可能用到的相对原子质量:C —12 H —1 O —16 Cl —35.5 Cu —64 Na —23 S —32 Mg —24 Fe —56 Al —27 Si —28 Ba —137 一、选择题:(每小题2分,共40分) 1. 已知氧化还原反应中存在如下关系:强氧化剂+强还原剂→弱氧化剂+弱还原剂,现有下列三个能反应的式子:( ) 2W - + X 2 →2X - + W 2 2Y - + W 2 → 2W - + Y 2 2X - + Z 2 → 2Z - + X 2 以上反应均在同温、同压、同浓度下进行,正确结论是 A.氧化性是:Y 2>X 2 B.还原性是:Y ->Z - C.2Z - + Y 2 → 2Y - + Z 2的反应能够进行 D.在X -、Y -、W -、Z -中X -的还原性最强 2. 18O 是科学实验中常用的一种示踪原子,用仪器可以观测到它在化学变化中的行踪。在某一饱和硫酸铜溶液(不含18O )中,加入ag 带标记18O 的无水硫酸铜粉末(CuSO 4中的氧元素全部为18O ),如果保持温度不变,其结果是( ) A.无水硫酸铜不再溶解,ag 带标记18O 的无水硫酸铜粉末没有发生改变 B.溶液中可以找到带标记18O 的SO 42-,且白色粉末变为蓝色晶体,其质量小于ag C.溶液中可以找到带标记18O 的SO 42-,且白色粉末变为蓝色晶体,其质量大于ag D.有部分带标记18O 的SO 42-进入溶液中,但固体质量保持不变 3. 如图所示,在竖直平面xoy 内,人眼位于P(0,4)位置处,平面镜MN 竖直放置,其两端M 、N 的坐标分别为(3,1)和(3,0),某发光点S 在该竖直平面y 轴的右半部分某一区域内自由移动时,此人恰好都能通过平面镜看见S 的像,则该区域的最大面积为( ) (A)0.5米2 (B)3.5米2。 (C)4米2 (D)4.5米2 4. 图中a 、b 、c 为三个物块,M 、N 为两个轻质弹簧,R 为跨过光滑定滑轮的轻绳,它们连接如图并处于平衡状态,则正确的选项为( ) (1)、有可能N 处于拉伸状态而M 处于压缩状态 (2)、有可能N 处于压缩状态而M 处于拉伸状态 (3)、有可能 N 处于不伸不缩状态而M 处于拉伸状态 (4)、有可能N 处于拉伸状态而M 处于不伸不缩状态 A 、①② B 、①③ C 、③④ D 、①④ 5. mol 是表示物质量的一种单位,1mol 的Na 、Mg 、Al 三种金属的质量分别为23克、24克、27克。室温时,向146克溶质质量分数为10%的盐酸溶液中分别加入两种金属M 、N ,先加入0.1mol 的金属M ,反应完毕后再加入0.2mol 的金属N ,则下列四组所加入的两种金属,放出气体总量最多 a b c M N R
重点高中自主招生物理试题5
重点高中自主招生物理试题(五) 及参考答案 一、选择题(共15小题,45分,每小题所给的选项中有一个或一个以上的选项是正确的。 全部选对得3分,选对但不全得1分,错选或不选得0分。) 1、在某次举重锦标赛中,一名运动员在抓举比赛时,将质量为127.5 kg的杠铃举起历时约0.5 s,再停留3 s后放下杠铃.那么,该运动员在举起杠铃过程中的平均功率约为() A.几百瓦B.几千瓦C.几十千瓦D.几百千瓦 2、在一个明月如皓的夜晚,李刚走在回家的路上,高悬的月亮让李刚在右侧留下长长的身影。刚下过的雨在坑洼的路面留下了一个个积水坑,李刚为了不踏入水坑,下面说法正确的是() A.应踩在较亮的地方,因为水面发生了漫反射,看起来较暗 B.应踩在较亮的地方,因为路面发生了漫反射,看起来较亮 C.应踩在较暗的地方,因为路面发生了漫反射,看起来较暗 D.应踩在较暗的地方,因为水面发生了镜面反射,看起来较亮 3、2008年9月“神舟”七号顺利升空,广袤的太空第一次留下了中国人的脚印.图中所示为翟志刚身着国产航天服、身系安全绳,缓缓步出轨道舱时的照片.地球就像一轮巨大的月亮,悬挂在其头顶,此时飞船绕地运行的速度高达七至八千米每秒.根据我们所学的知识可知,下述说法正确的是() A.在此高空,翟志刚不受重力作用 B.白色的航天服能反射太阳光中的各种色光 C.由于地球对阳光的反射,飞船上的摄像机 才能拍摄到地球 D.尽管飞船速度很快,但在舱外翟志刚依靠 惯性也能随飞船飞行 4、在2008年北京奥运会中,牙买加选手博尔特成为了一名公认的世界飞人,在男子100 m 决赛和男子200 m决赛中他分别以9.69 s和19.30 s的成绩打破两项世界纪录,获得两枚金牌.关于他在这两次决赛中的运动情况,下列说法正确的是() A.200 m决赛中的路程是100 m决赛的两倍 B.200 m决赛中的平均速度约为10.36 m/s C.100 m决赛中的平均速度约为10.32 m/s D.100 m决赛中的最大速度约为20.64 m/s 5、如图所示的是握力计的原理图,其中弹簧上端和滑动变阻器滑 片固定在一起,AB间有可收缩的导线,R0是保护电阻,电压表可显 示压力的大小.则当握力F增加时,电压表的示数将() A.变大 B.变小 C.不变 D.无法确定 6、物理学常常把实际的研究对象或实际的过程抽象成“物理模型”。 下列选项中叙述正确的是()
全国重点高中提前招生考试全真试卷物理(16)
全国重点高中提前招生考试全真试卷(十六) 一、选择题(每小题4分,共40分) 1.炎热的夏天,在玻璃杯中装有水和冰块,如图16-1所示,左边杯子里的冰块压着杯底,右边 杯子里的冰块漂浮在水面若不考虑水的蒸发,当两个杯中的冰块全部熔化时,杯中水面和初 始时刻杯中水面相比( ) A.都高于初始时刻杯中的水面 B 都和初始时刻杯中的水面相平 C 左侧杯中水面和初始时刻的水面相平,右侧杯中水面高于初始时刻杯中水面 D 左侧杯中水面高于初始时刻杯中水面,右侧杯中水面和初始时刻的水面相平 2.如图16-2所示,甲乙两个完全相同的直角三棱劈放置在水平桌面上三棱劈的密度均匀且 底面为矩形,若分别沿两物体图中虚线将右上侧切掉△m 甲和△m 乙,且△m 甲<△m 乙,则剩余部 分对桌面的压强p 甲和p 乙的大小关系为( ) A.ρ甲>ρ乙 B.ρ甲<ρ乙 C.ρ甲=ρ乙 D.都有可能 体积相等的甲、乙、丙、丁四个物块均漂浮在水面上,它们浮出水面的体积分别为20cm 3、45cm 3、 65cm 3、75cm 3若将四个物块浮出水面的部分切除,待重新稳定后,四个物块再次浮出水面的体 积分别为V 甲 V 乙V 丙V 丁,且V 乙>V 丙>V 丁>V 甲则四个物块各自原来的体积大小可能为( ) A.80cm 3 B.100cm 3 C.120cm 3 D.140cm 3 3. 如图16—3所示,用自制针孔照相机观察烛焰有以下四句说法: a.薄膜上出现烛焰的像是倒立的 b.薄膜上烛焰的像可能是缩小的也可能是放大的 c.保持小孔和烛焰的距离不变,向后拉动内筒增加筒长烛焰的像变大 d.保持小孔和烛焰的距离不变向前推动内筒烛焰的像更明亮 对于这四句说法,其中正确的是( ) A.abcd B.acd C.ab D.cd 5.2016年2月美国科学家向世人宣布:通过实验证实了引力波的存在万有引力定律是由牛顿 提出的,他认为宇宙间的一切物体都是相互吸引的,两个物体间的引力可用万有引力公式表 示请你运用物理量单位运算判定在下面给出的四个万有引力的公式中哪个是正确的其中G 表示万有引力常量,单位是N ·m 2/kg 2;m 1、m 2表示两个物体的质量,表示它们之间的距离( ) A.221r m m G F = B.22221r m m G F = C.32 1r m m G F = D.r m m G F 21= 6.用“220V,800°的电热壶烧水,若不考虑能量损失,当把它接入110V 源上时,在32分钟内 可将一壶水烧开,若将该壶接在220V 电源上时烧开同样一壶水所用时间为各( ) A 8min B.16min C 64min D. 128min
重点中学提前招生考试试卷
重点中学提前招生考试试卷 数 学 一、选择题(每小题4分,共40分) 1.函数y= 2006 x 自变量x 的取值范围是……………………………………………………………………( ) A .x >0 B .x <0 C .x=0 D .x≠0 2. 如果从一卷粗细均匀的电线上截取1米长的电线, 称得它的质量为a 克,再称得剩余电线的质量为b 克, 那么原来这卷电线的总长度是……………………………………………………………………( ) A .b+1a 米; B .(b a +1)米; C .(a+b a +1)米; D .(a b +1)米 3. 国家质检总局出台了国内销售的纤维制品甲醛含量标准, 从2003年1月1 日起正式实施.该标准规定:针织内衣. 床上用品等直接接触皮肤的制品,甲醛含量应在百万分之七十五以下. 百万分之七十五用科学记数法表示应写成…………………………………………………………………………………( ) A .75×10-7; B .75×10-6; C .7.5×10-6; D .7.5×10-5 4. 已知⊙O 1半径为3cm ,⊙O 2的半径为7cm, 若⊙O 1和⊙O 2的公共点不超过1 个, 则两圆的圆心距不可能为……………………………………………………………………………………………………( ) A .0cm ; B .4cm ; C .8cm ; D .12cm 5. 如图所示的两个圆盘中,指针落在每一个数上的机会均等,那么两个指针同时落在偶数上的概率是…………………………………………………………………………………………………………( ) A .1925 ; B .1025 ; C .625 ; D .525 6. 在四边形ABCD 中,对角线AC 与BD 相交于点E ,若AC 平分∠DAB ,AB=AE , AC=AD. 那么在 下列四个结论中:(1) AC ⊥BD ;(2)BC=DE ; (3)∠DBC=1 2 ∠DAB ;(4) △ABE 是正三角形, 正确的是…………………………………………………………………………………………………( ) A .(1)和(2); B .(2)和(3); C .(3)和(4); D .(1)和(4) 7. 红星学校准备开办一些学生课外活动的兴趣班,结果反应热烈。各种班的计划招生人数和报名人数,列前三位的如下表所示 第5题图 第13题图 第9题图 第8题图