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2017达州中考成绩查询

2017-03-21 05:38:49 来源网站: 百味书屋

篇一:2017年达州中考英语单项选择专题训练

2017年达州中考英语单项选择专题训练

达州历年中考英语单项选择题汇总

达州市2008年高中阶段教育学校招生统一考试

第一节:单项选择。(共10小题;每小题1分,计10分)

从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳答案。

21.---What was Marc doing when his mother got home yesterday ?

----He was playing _____________ guitar.

A. the B. aC. an D. /

22.---When did the great earthquake in Wenchuan happen ?

---It happened __________2:28 __________the afternoon of May 12, 2008.

A. on, in B. at, on C. at, in D. on, on

23.---Nobody likes __________, so you’d better be kind to others.

----So sorry. I won’t do it again.

A. laugh atB. to laugh at C. to be laughed atD. to be laughed

24.---Would you mind _________ baseball here?

----Sorry. We’ll go and play in the park.

A. not playingB. playing C. not to play D. not play

25.---Where does Mr. Black live ? Can you guess?

--- Sorry, I can’t guess _____________________.

A. where does he live B. where he lives in

C. where does he live inD. where he lives

26.---How about going to school by boat, Lilei?

---Good idea. That must be ___________than taking a bus.

A. much funB. more much fun C. a lot more fun D. funner

27. ---Which one would you like to work for in the following groups , Li Mei ?

---Let me see . I'd like to work for _______.Because this group helps children in poor countries.

A. Greenpeace B.NBAC. UNICEFD.WTO

28. ---I’ll fly to Shanghai on business next Friday.

---____________________________

A. That’s very nice of you.

B.I don’t think so.

C. Can’t you go?

D. Have a good trip.

29.---Have you ever been to Hangzhou , Lucy ?

---No, I haven’t. What about you?

---____________________.

A. So do IB. Me neither.C. Me too D. So have I

30.---How do you like the pictures which _________ on show ?

---I like _________ very much.

A. is, them B. are, them C. is , it D. are , it

达州市2009年高中阶段教育学校招生统一考试

第一节 单项选择(共10小题。每小题1分,计10分)

从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳答案。

A. a; aB. an; a C. the; theD. a; the

22. — Can I help you?

—I’d like a cup of coffeemilkit, please.

A. at; in B. with; in C. with; onD. at; on

23. —Who’s that under the tree? Is it Jenny?

—Itbe Jenny. She’s ill in hospital today.

A. can’t B. must C. mayD. mustn’t

24. —Excuse me. Could you tell me? I want to post a letter.

—Sure. It’s between Hongqi Supermarket and Jinglong Hotel.

A. where was the post officeB. where the post office is

C. how can I get to the cinema D. how I can get to the cinema

25. —is from Canada?

—Yes, her name is Helen.

A. whom B. whichC. whoseD. who

26. —Where is your father, Leo?

—He is in Hainan on vacation. He for two weeks.

A. has been awayB. has left C. has gone D. left

27. —Kevin, is your twin brother the same as you?

—No. I’m than him.

A. a little thin B. very thinnerC. much thiner D. a little thinner

28. — How beautiful your hometown is!

—Yes, a number of trees around Dazhou every year. Our environment is getting better and better.

A. are plantB. are plantedC. are planting D. were planted

29. —Can you come to my birthday party next Sunday?

—Oh, thanks.

A. Yes, please.B. I’ve no idea. C. I’d love to.D. Yes, I would.

A. Both; and B. Not only; but also C. Either; orD. Neither; nor

达州市2010年高中阶段教育学校招生统一考试

第一节 单项选择(共10小题。每小题1分,计10分)

从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳答案。

21. —Must I finish my homework right now?

—No, you A. needn’t B. may not C. mustn’t D. can’t

22. When we got to Yushu airport , we were told that they 废墟) by

earthquake.

A. has saved B. saved C. had savedD. have saved

23. —Would you like to drink?

—Yes, I’ d like a cup of coffee.

A. something else B. else something C. anything else D. else anything

24. Why not an English club to practice A. to join; to speakB. join; speaking

C. join; to speak D. to join; speaking

25. This kind of paper soft.

A. feels B. tastes C. smells D. sounds

26.—Your watch is so beautiful. It must be expensive.

—Not at all. I only ¥20 on it.

A. costB. spentC. paidD. took

27. trees have been planted near here, so the air is very fresh.

A. Two hundredsB. Hundred of C. Hundreds of D. Hundreds

28. My father has a computer, but he doesn’t know to use it.

A. whatB. how C. whoD. which

29. I don’t know if Jack . If he , call me, please.

A. will come; will comes B. comes; come

C. comes; will comeD. will come; comes

30.—I did badly in my English exam.

— .

A. Congratulations B. That’s great

C. I’m sorry to hear thatD. Well done

达州市2011年高中阶段教育学校招生统一考试

第一节 单项选择(共10小题。每小题1分,计10分)

从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳答案。

21.—What—Yeah, it tells you how to play guitar.

 A. an; the B. a; a C. a; the D. an; a

22. —  —Tomorrow morning.

A. how I can get to the post officeB. how long can I keep the book

C. when to leave for Beijing D. where I should take the early bus

23. —Tom didn’t go to school this morning, did he?

 —A. Yes, he didn’tB. Yes, he did C. No, he didn’tD. No, he did

24.—Where did you go last week?

 —I went to Zhang Aiping’s hometown and visited the house he was born in.

 A. that B. thereC. who D. whose

25.—teachers are there in your school?

—A. woman; The number of; isB. women; The number of; is

C. woman; A number of; is D. women; A number of; are

26.—Up to now the Chinese Communist Party(中国共产党)—Yes, it was founded July 23rd, 1921.

A. 90 years; at B. 90-year; in

C. 90-years; of D. 90-year; on

27.— I don’t know if Aunt Li “stay-home children”tomorrow morning.

— If I her, I would come earlier.

A. will come to take care of; am B. come to look after; were

C. will come to take care of; were D. comes to come up with; am

28. —If a=4, b=5, what’s the answer to the question “ a + 2ab +1 =?”

 —.

A. Forty-fifthB. Forty-five

C. Twenty-three D. One hundred and twenty-one

newspapers.

A. watching; read B. watching; to read

C. to watch; read D. to watch; reading

30.— Do you know Lucy’s grandma?

— Of course. She is a kind woman, but she has for about a month since shein the accident. A. been dead; was killed B. died; was killed

C. been dead; killed D. died; killed

达州市2012年高中阶段教育学校招生统一考试

第一节 单项选择(共10小题。每小题1分,计10分)

从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳答案。

21. —What cold weather!

—Yes. But it’A. /; aB. a; an C. / ; an D. a; the

22. —We can see the sign

in the public places. What does it mean?

—It means________.

A. NO PHOTOS B. NO FISHING

C. NO PARKING D. NO SMOKING

23. —Do you enjoy My heart will go on?

—No, I prefer songs loud.

A. that isB. which is C. that areD. what are

24. —I like drinking wine. But people who drink wine aren’t allowed to drive.

—If I you, I would give up wine.

A. were; drinking B. am; drinking

C. were; drinkD. was;to drink

25. — Is there in today’s magazine?

—Yes. Premier Wen Jiabao saw ―stay-home children‖ May,25th.

A. anything special; hundreds of; onB. something special; hundred of; at

C. special anything; hundreds; on D. anything special; hundreds of; in

26.—That actor often joins in dfferent activities in Beijing. Do you know ?

—For 5 years.

A. how soon he will come back B.how long he has stayed there

C. how long has he stayed there C. how often does he go there

27. —Peter has changed a lot, hasn’t he?

—Yes. He used to the guitar,but now he is more in playing soccer.

A. plays; interested B. play; interested

C. play; interesting D. playing; interest

28. —I have never been to Hawaii. What about Mike?

—.

A. So has he B. So he doesC. Neither he has D. Neither has he

29. — John, you go out to play until your homework .

—OK, Mum.

A. must; finishes B. can’t; is finished

C. can’t; has finished D. needn’t; finishes

30. —Would you please help me with my writing skills?

— ________.You can come to my office every Saturday.

A. That’s all right B. Not at all C. No problem D. No,thanks

达州市2013年高中阶段教育学校统一招生考试

第一节 单项选择(本题共15小题,每小题1分,计15分)

从每小题所给的A、B、C、D四个选项中选出可以填入空白处的最佳答案。

21. My sister likes playing _________ piano, but she doesn’t like playing __________ football.

A. the, the B. /, theC. the, /D. a, an

22. — Whose pencil-box is this?

— Oh, it’s ____________. I was looking for it everywhere.

A. my B. yours C. me D.mine

23. — Which basketball player do you like best, Jordan, Lin Shuhao or Kobe?

— ___________of them. Yao Ming is my favorite.

A. NeitherB. NoneC. All D. Either

24. —Would you like some __________ ?

— Oh, yes, just a little.

A. applesB. carrot C. pears D. chicken

25. —Which would you prefer, coffee or orange juice?

— Either _________ OK, but I prefer coffee __________milk in it.

A. are, with B. is, to C .is, with D. are, to

26. — How was your weekend?

—Great! It was my grandmother's __________birthday. We enjoyed _________.

A. ninth, themselves B. ninetieth , ourselves

C. the ninetieth, ourselvesD. nineteenth, themselves

27. —Peter is __________ than you, right?

—Yes, but he runs___________ in our class.

A. heavier, fastest B. heavy, the fastest C. heavier, faster D. heavy, faster

28. — Dad, must I practice the violin today?

— No, you __________. You __________ do it tomorrow.

A., mustn’t, may B. needn’t, may C. shouldn’t, can D. needn’t, mustn’t

29. — Don’t forget __________ the classroom tomorrow afternoon.

— Thanks. I won’t.

A. to keep cleanB. cleaning C. sweeping D. to clean up

30. — Did it take you a lot of time __________ English last weekend?

—No. I went to the countryside to see my grandfather.

A. practicing speaking B. practicing spoken

篇二:达州耀华育才学校学校2016-2017学年七年级上月考数学试卷A

达州耀华育才学校学校2016-2017学年七年级上月考数学试卷

参考答案与试题解析

一、选择题

1.下列各图不是正方体表面展开图的是( )

A. B. C. D.

解:A、是正方体的展开图,

B、是正方体的展开图,

C、折叠有两个正方形重合,不是正方体的展开图,

D、是正方体的展开图,

故选C.

2.如图是一个正方体的平面展开图,折叠成正方体后与“建”字所在面相对的面的字是( )

A.创 B.教 C.强 D.市

故选C.

3.下列图形中,能通过折叠围成一个三棱柱的是( )

A. B.

C. D.

故选C.

4.下列各数中,最大的数是( )

A.﹣2 B.0 C. D.﹣0.3

>0>﹣0.3>﹣2,

故选:C.

5.数轴上的点A到原点的距离是8,则点A表示的数是( )

A.8 B.﹣8 C.±8 D.±4

故选C.

6.下列说法不正确的是( )

A.0既不是正数,也不是负数

B.0表示没有

C.一个有理数不是整数就是分数

D.正数和0的绝对值是本身

解:A、0既不是正数,也不是负数,正确;

B、0表示温度时,是具体存在的,0表示物体个数时,表示没有,错误;

C、一个有理数不是整数就是分数,正确;

D、正数和0的绝对值是本身,正确.

故选:B.

7.下列算式正确的有( )个

(1)﹣1﹣1=0; (2)﹣|﹣3|=3; (3)3﹣2=﹣1; (4)﹣[+(﹣3)]=3.

A.0 B.1 C.2 D.3

解:(1)﹣1﹣1=﹣2,则算式错误;

(2)﹣|﹣3|=﹣3,则算式错误;

(3)3﹣2=1,算式错误;

(4)﹣[+(﹣3)]=3,算式正确.

故选B.

8.如图,数轴上点A、B分别对应实数a、b,则下列结论正确的是( )

A.a>b B.|a|>|b| C.a+b>0 D.﹣a>b

解:A、a<b,故错误;

B、|a|<|b|,故错误;

C、正确;

D、﹣a<b,故错误;

故选:C.

9.下列说法正确的是( )

A.一个数的绝对值一定比0大

B.一个数的相反数一定比它本身小

C.绝对值等于它本身的数一定是正数

D.最小的正整数是1

解:A、一个数的绝对值一定比0大,有可能等于0,故此选项错误;

B、一个数的相反数一定比它本身小,负数的相反数,比它本身大,故此选项错误;

C、绝对值等于它本身的数一定是正数,0的绝对值也等于其本身,故此选项错误;

D、最小的正整数是1,正确.

故选:D.

10.如果|a|=﹣a,那么a的取值范围是( )

A.a>0 B.a<0 C.a≤0 D.a≥0

解:因为一个负数的绝对值是它的相反数;0的绝对值是0或相反数,所以如果|a|=﹣a,那么a的取值范围是a≤0.

故选C.

二、填空题(每题4分,共20分)

11.在①长方体、②正方体、③圆锥、④圆柱、⑤三棱柱、⑥球这六种几何体中,其主视图、左视图、俯视图都完全相同的是 ①②⑥ (填上序号即可).

解:①长方体主视图是长方形、左视图是长方形、俯视图是长方形;

②正方体主视图是正方形、左视图是正方形、俯视图是正方形;

③圆锥主视图是三角形、左视图是三角形、俯视图是圆及圆心;

④圆柱主视图是长方形、左视图是长方形、俯视图是圆形;

⑤三棱柱主视图是长方形、左视图是三角形、俯视图是长方形;

⑥球主视图是圆形、左视图是圆形、俯视图是圆形;

答案为:①②⑥.

12.薄薄的硬币在桌面上转动时,看上去象球,这说明了 面动成体 .

解:从运动的观点可知,薄薄的硬币在桌面上转动时,看上去象球,这种现象说明面动成体. 故答案为:面动成体.

13.若|x+1|+|y﹣2|=0,则x﹣y= ﹣3 .

解:由|x+1|+|y﹣2|=0,得

x+1=0,y﹣2=0,

解得x=﹣1,y=2.

x﹣y=﹣1﹣2=﹣1+(﹣2)=﹣3,

故答案为:﹣3.

14.比较大小:

解:∵|∴|﹣|>|

∴﹣<﹣.

故答案为<.

15.若|a|=5,|b|=3,且a<b,则a+b= ﹣2或﹣8 .

解:∵|a|=5,|b|=3,且a<b,

∴a=﹣5,b=3;a=﹣5,b=﹣3,

当a=﹣5,b=3时,原式=﹣5+3=﹣2;

当a=﹣5,b=﹣3时,原式=﹣5﹣3=﹣8.

故答案为:﹣2或﹣8..

16.若a>0,b<0,且|a|<|b|,则a、﹣a、b、﹣b从小到大的顺序是 b<﹣a<a<﹣b .

解:∵a>0,b<0,|a|<|b|,

(用“>或=或<”填空). , |==|; ,|﹣|==

篇三:达州市2017届一诊理综试题

达州市普通高中2017届第一次诊断性测试

理综试题

理科综合共300分,包括物理、化学和生物三部分,考试时间共150分钟。 注意事项:

1.本试卷分为第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。答卷前,考生用直径0.5mm黑色签字笔将自己的姓名、考号、考试科目涂写在答题卡上,检查条形码粘贴是否正确。

2.选择题使用2B铅笔填涂在答题卡对应题目标号的位置上;非选择题用直径0.5mm黑色签字笔书写在答题卡的对应框内,超出答题区域书写的答案无效。

3.考试结束,将答题卡交回。

可能用到的数据:H-1 C-12 N-14 O-16 Na-23 lg2=0.3

第Ⅰ卷(选择题,共126分)

一、选择题:本题共13小题,每小题6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。

1.下列关于线粒体和叶绿体的叙述不正确的是

A.都能产生ATPB.都含有少量DNA

C.都能产生NADPH D.都具有双层膜

2.右图为某细胞结构示意图,在该细胞中不会发生的是

A.氨基酸在核糖体中发生脱水缩合

B.mRNA经核孔转移到细胞质

C.高尔基体膜和细胞膜的更新

D.染色质高度螺旋化成为染色体

3.豹的某个栖息地由于人类活动被分隔为F区和T区。20世纪90年代初,F区豹种群仅剩25只,且出现诸多疾病。为避免该豹种群消亡,由T区引入8只成年雌豹。经过十年,F区豹种群增至百余只且保持相对稳定。下列分析正确的是

A.F区不抗病豹和T区抗病豹之间存在生殖隔离

B.T区豹种群中抗病基因的产生是病原体诱导定向突变的结果

C.混合后的豹群中如果没有新基因产生,则不会发生进化

D.与引入雌豹之前相比,F区种群致病基因频率发生改变

4.下列研究中,均采用了特定的技术(方法),相关描述恰当的是

①细胞大小与物质运输的关系

②小鼠细胞和人细胞融合表明细胞膜具有流动性

③沃森和克里克构建DNA双螺旋结构模型

④CO2中的碳在光合作用中转化成有机物中碳的途径

⑤摩尔根测定基因在染色体上的相对位置

⑥噬菌体侵染细菌实验证明DNA是遗传物质

A.②和⑤均采用了荧光染料标记法B.③和⑤均采用了X射线衍射图谱分析法

14C.④和⑥均采用了C标记法D.①和④均采用了模拟法

一诊理综试卷第1页(共12页)

5.经P充分标记的某动物精原细胞置于不含P的培养液中,在适宜条件下先进行了一次有

32丝分裂,紧接着再连续进行了两次细胞分裂(第2次和第3次),若某细胞中含P的染色体

32比例、含P的核DNA比例均为1/2,则该细胞不可能处于

A.第2次分裂(有丝分裂)后期 B.第2次分裂(减Ⅰ分裂)后期

C.第3次分裂(有丝分裂)后期 D.第3次分裂(减Ⅱ分裂)后期

6.下图是先天聋哑遗传病的某家系图,Ⅱ2的致病基因位于一对染色体,Ⅱ3的致病基因位于另一对染色体,这2对基因均可单独致病。Ⅱ2不含Ⅱ3的致病基因,Ⅱ3不含Ⅱ2的致病基因。在不考虑基因突变的情况下,下列分析不正确是

3232

A.致病基因均为隐性基因

B.导致Ⅱ3患病的基因不可能位于X染色体上

C.Ⅲ1正常的原因是无来自Ⅱ3的致病基因

D.若发生染色体片段缺失,Ⅱ2和Ⅱ3所生孩子也可能出现聋哑症状

7.化学物质丰富多彩,其与生产、生活密切相关。下列物质的用途不正确的是

A.食醋可用于除去暖水瓶中的水垢B.纯碱可除去灶具上的油污

C.酒精可用于杀菌消毒D.单质硅可用作光缆

8.用NA表示阿伏加德罗常数的值.下列叙述正确的是

A.1mol碳正离子(CH3+)所含质子总数为8NA

B.常温常压下,46gNO2和N2O4混和气体中含原子总数为3 NA

C.标准状况下,11.2 L氟化氢中含有氟原子的数目为0.5NA

14D.14gC原子形成的石墨中,所含C-C健的个数为NA 9. X、Y、Z、W、Q是原子序数依次增大的五种短周期主族元素.其中只有Z是金属,W的单质是黄色固体,X、Y、W在周期表中的相对位置关系如图.下列说法正确的是

A.五种元素中,原子半径最大的是W

B.Y的氢化物的沸点比W的氢化物的沸点低

C.Y与Z形成的化合物都可以和盐酸反应

D.Z与Q形成的化合物的水溶液一定显酸性

10.用下图装置制取、提纯并收集下表中的四种气体(a、b、c、d表示相应仪器中加入的试剂,收集装置略去).其中可行的是

11. 氢镍电池是近年开发出来的可充电电池,它可以取代会产生污染的铜镍电池。氢镍 电池的总反应式是 (1/2)H2+NiOOHNi(OH)2.据此反应式判断,下列叙述中不正确的是

A.电池放电时,电池负极周围溶液的pH不断增大

--B.电池放电时,正极的电极反应为:NiOOH + e + H2O = Ni(OH)2 +OH

一诊理综试卷第2页(共12页)

C.电池充电时。阳极周围溶液的pH不断减小

--D.电池充电时,阴极的电极反应为:2H2O + 2e = H2 + 2OH

12.

13.有机化合物A的分子式是C13 H20O8(相对分子质量为304), 1molA 在酸性条件下与 4molH2O反应得到4molCH3COOH 和1molB。下列说法错误的是

A.A和B的相对分子质量之差为 168

B.B一定不能发生加成反应

C.有机物B与CH3CH2OH互为同系物

D.分子式为C5H10O2且与CH3COOH 属于同类物质的有机物只有4种

二、选择题:本题共8小题,每小题6分。在每小题给出的四个选项中,第14-18题只有一项符合题目要求,第19-21题有多项符合题目要求。全部选对的得6分,选对但不全的得3分。有选错的得0分。

14.以下图片来源于教材,与它们相关的说法正确的是

A

A.甲图是英国物理学家库仑利用扭秤实验测量万有引力常量G的装置示意图

B.乙图是发射出去的火箭,利用了反冲现象

C.丙图是利用“光的反射”精确测量微小压力大小的装置示意图

D.丁图中,伽利略第一次用科学的实验方法改变了人类对物体运动的认识,总结出了行星运动定律和万有引力定律等,为人类做出了卓越贡献

15.如图是某质点运动的速度图像,由图像可知

A.在t=2s时,该质点的速度方向发生了改变

B.在2~4s内该质点的位移是24m

C.在0~2s内该质点的位移是6m

D.在4~6s内该质点运动的加速度是3m/s

16.如图所示,一箱子放在水平地面上,现对箱子施加一斜向上的拉力F,保持拉力的方向不变,在拉力F的大小由零逐渐增大的过程中(箱子未离开地面),关于摩擦力f的大小随拉力F的变化关系,下列四幅图可能正确的是

f2 f f f

一诊理综试卷第3页(共12页)

17.2016年10月19日,“神舟十一号”飞船与“天宫二号”目标飞行器自动交会对接成功.对接时的轨道高度是393km (这也是我国未来空间站的工作轨道高度),比2013年6月13日“神舟十号”与“天宫一号”对接时的轨道高度高出50km,对接后均视为匀

3

C.此次对接后的向心加速度与上次对接后的向心加速度之比约为()2 6793

D.我国未来空间站的运行周期约为24h

18.在两个足够长的固定的相同斜面体上(其斜面光滑),分别有如图所示的两套装置(斜面体B的上表面水平且光滑、长方体D的上表面与斜面平行且光滑,p是固定在B、D上的小柱,完全相同的两只弹簧一端固定在p上,另一端分别连在A和C上,在A与B、C与D分别保持相对静止状态沿斜面自由下滑的过程中,下列说法正确的是

A.两弹簧都处于拉伸状态

B.两弹簧都处于压缩状态

C.弹簧L1处于压缩状态,弹簧L2处于原长

D.弹簧L1处于拉伸状态,弹簧L2处于压缩状态

19.如图所示,质量为m的一辆小汽车从水平地面AC上的A点沿斜坡匀速行驶到B点,B点距水平面高h,以水平地面为零势能面,重力加速度为g。小汽车从A点运动到B点的过程中(空气阻力不能忽略),下列说法正确的是

A.合外力做功为零

B.合外力做功为mgh

C.小汽车的机械能增加量为mgh

D.牵引力做功为mgh

20.静止在粗糙水平面上的物体,在水平力F的作用下,经过时间t、通过位移l后,动量为p、动能为EK。以下说法正确的是

A.若保持水平力F不变,经过时间2t,物体的动量等于2p

B.若将水平力增加为原来的两倍,经过时间t,物体的动量等于2p

C.若保持水平力F不变,通过位移2l,物体的动能小于2EK

D.若将水平力增加为原来的两倍,通过位移l,物体的动能大于2EK

21.如图甲所示,一轻弹簧的两端与质量分别为m1、m2的

两物块A、B连接,并静止在光滑水平面上。现使B获

得水平向右、大小为6m/s的瞬时速度,从此刻开始计

时,两物块的速度随时间变化的规律如图乙所示,从

图像可知

A.在t1、t3时刻两物块达到共同速度2m/s,且弹簧都

处于伸长状态

B.从t3到t

4

时间内弹簧由压缩状态恢复到原长

C.两物体的质量之比为m1:m2=2:1

D.在t2时刻,A、B两物块的动能之比为Ek1:Ek2=4:1

一诊理综试卷第4页(共12页)

第Ⅱ卷(非选择题,共174分)

三、非选择题:包括必考题和选考题两部分。第22题---第32题为必考题,每个试题考生

都必须做答。第33题---第38题为选考题,考生根据要求做答。

(一)必考题(共129分) 22.(6分)小莉和她的同学结合图示的方法,利用简易实验器材:一把刻度尺,一质量为m?300g的重物,测量自己头发丝能承受的最大拉力,并与

网上获取的正常数据进行对比(头发能承受的拉力随年龄而变

化:20岁组,头发能承受的拉力最大,平均约1.72N;30 岁组,

平均约1.50N??)实验步骤如下: ①水平固定刻度尺;

②用手指尖紧捏住头发丝两端,用直尺测量出两手指尖之间

的头发丝长度L=50.00cm;

③重物挂在头发丝上,两手缓慢沿刻度尺水平移动,直至头发丝恰好被拉断;从刻度尺上读出两手指尖之间的距离d=30.00cm。(取重力加速度g=10m/s2,挂钩光滑且质量不计)。

由以上数据可知所用刻度尺的最小分度为;头发丝的最大拉力的表达式 T(用以上物理量符号表示);利用所测数据可求得最大拉力为N(保留三位有效数字),在正常范围。

23.(9分)图(a)为测量滑块与水平木板之间动摩擦因数的实验装置示意图。木板固定在水平桌面上,打点计时器电源的频率为50Hz。开始实验时,在托盘中放入适量砝码,滑块开始做匀加速运动,在纸带上打出一系列点。

(1)图(b)是实验中获取的一条纸带的一部

分,相邻两计数点间还有4个打点未标出,相邻计数

点间的距离如图所示。根据图中数据计算的加速度

a2 (保留两位有效数字)。

(2)为测定动摩擦因数,下列物理量中还应测

量的有 (填入正确选项前的字母)。

A.滑块运动的时间t

B.滑块的质量m1

C.木板的质量m2

D.托盘和砝码的总质量m3

(3)滑块与木板间的动摩擦

因数μ=

(用被测物理量的符号表示,重力加速度为g)。

24.一质量M?2?10kg的汽车,其额定功率P,在平直公路上行驶时受到额?80kw

3的阻力为f?4?10N。如果汽车从静止开始做匀加速直线运动,经过时间t?5s汽车发动3

机输出功率达到额定功率,运动过程中阻力不变。求:

(1)汽车在平直公路上行驶的最大速度vm;

(2)汽车做匀加速直线运动的加速度a。

一诊理综试卷第5页(共12页)


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