初二數(shù)學(xué)上冊(cè)期末考試試題及答案74859

1、方舟培訓(xùn)中心初二升初三數(shù)英測(cè)試題、選擇題（每小題有且只有一個(gè)答案正確，每小題數(shù)學(xué)部分4分，共40分）1、如圖，兩直線a/ b,與/ 1相等的角的個(gè)數(shù)為B、2個(gè)2、不等式組x>3的解集是（x<4A、 3<x<4B、 x<4C、x>3D、無解3、如果a>b,那么下列各式中正確的是A、 a 3<b 3c、a>D、2a< 2b4、如圖所示，由/ D= / C,Z BAD= / ABC推得 ABD BAC，所用的的判定定理的簡(jiǎn)稱是 （A、AASB、ASAC、SASD、SSS5、已知一組數(shù)據(jù)1 , 7, 10, 8,X, 6,3,若X=5，則x應(yīng)

2、等于（b ）a )13C、46、下列說法錯(cuò)誤的是（b ）A、長(zhǎng)方體、正方體都是棱柱;B、三棱住的側(cè)面是三角形;C、六棱住有六個(gè)側(cè)面、側(cè)面為長(zhǎng)方形;D、球體的三種視圖均為同樣大小的圖形;27、A ABC 的三邊為 a、b、c,且（a+b）（a-b）=c，則（d ）A、 ABC是銳角三角形;B、c邊的對(duì)角是直角;C、A ABC是鈍角三角形;D、a邊的對(duì)角是直角;&為籌備班級(jí)的初中畢業(yè)聯(lián)歡會(huì)，班長(zhǎng)對(duì)全班學(xué)生愛吃哪幾種水果作了民意調(diào)查，那么最終買什么水果,數(shù)據(jù)中最值得關(guān)注的是（c ）A、中位數(shù);B、平均數(shù);C、眾數(shù);D、加權(quán)平均數(shù);9、如右圖，有三個(gè)大小一樣的正方體,每個(gè)正方體的六個(gè)面上都按照

3、相同的順序，依次標(biāo)有1,2, 3, 4, 5, 6這六個(gè)數(shù)字，并且把標(biāo)有6”的面都放在左邊，那么它們底面所標(biāo)的3個(gè)數(shù)字之和等于（a ）C、10D、1110、為鼓勵(lì)居民節(jié)約用水，北京市出臺(tái)了新的居民用水收費(fèi)標(biāo)準(zhǔn):（1）若每月每戶居民用水不超過4立方米，則按每立方米2米計(jì)算；（2）若每月每戶居民用水超過4立方米，則超過部分按每立方米4.5米計(jì)算（不超過部分仍按每立方米2元計(jì)算）。B、A、y元，則y與x的函數(shù)關(guān)系用圖象表示正確的是（c ）D、C、填空題（每小題4分，共32分）11、不等式2x-1>3的解集是12、已知點(diǎn)A在第四象限，且到x軸，y軸的距離分別為3, 5，則A點(diǎn)的坐標(biāo)為 _（5,

4、3） ；13、 為了了解某校初三年級(jí) 400名學(xué)生的體重情況，從中抽查了50名學(xué)生的體重進(jìn)行統(tǒng)計(jì)分析，在這個(gè)問題中，總體是指初三年級(jí)400名學(xué)生體重情況；14、 某班一次體育測(cè)試中得 100分的有4人，90分的有11人，80分的有11人，70分的有8人，60分的有5人，剩下的8人一共得了 300分，則中位數(shù)是80。15、如圖，已知/ B= / DEF , AB=DE，請(qǐng)?zhí)砑右粋€(gè)條件使 ABC DEF，則需添加的條件是 _cb=fe.16、如圖，AD 和 BC 相交于點(diǎn) O, OA=OD , OB=OC，若/ B=40 ° , / AOB=110 °，則/ D=30_度;17

5、、彈簧的長(zhǎng)度y（cm）與所掛物體的質(zhì)量x （kg）的關(guān)系是一次函數(shù),圖象如右圖所示，則彈簧不掛物體時(shí)的長(zhǎng)度是9cm ；x對(duì)應(yīng)的立體圖形是三、解答題（共78分）19、（8分）解不等式x+12（x 1）1，并把解集在數(shù)軸上表示出來。x+12(x1) 120、（8分）填空（補(bǔ)全下列證明及括號(hào)內(nèi)的推理依據(jù) ）： 如圖：已知：AD丄BC于D, EF丄BC于F,Z 1 = / 3, 求證：AD平分/ BAC。證明： AD丄BC , EF丄BC于F（已知） AD / EF（同位角相等，兩直線平等）/ 1= / E（兩條直線平行，同位角相等）/ 2= / 3（兩條直線平行，內(nèi)錯(cuò)角相等）又/ 3= / 1（已知

6、）/ 1= / 2（等量代換） AD平分/ BAC（角平分線定義）21、畫出下圖的三視圖（9分）22、（9分）已知點(diǎn)A（10 ,（1）分別描出A、B、C、0), B(10 , 8), C(5 , 0), D(0, 8), E(0 , 0)，請(qǐng)?jiān)谙旅娴钠矫嬷苯亲鴺?biāo)系中,（2）要圖象高矮”不變,胖瘦”變?yōu)樵瓉韴D形的一半，坐標(biāo)值應(yīng)發(fā)生怎樣的變化?| LILI kI J I J I J丄丄1- I 4D、E五個(gè)點(diǎn)，并順次連接這五個(gè)點(diǎn)，觀察圖形像什么字母;23、（10分）如圖，Ia，1B分別表示A步行與B騎車在同一路上行駛的路程 S與時(shí)間t的關(guān)系。（1）B出發(fā)時(shí)與A相距千米。（2）走了一段路后，自行車發(fā)

7、生故障，進(jìn)行修理，所用的時(shí)間是 小時(shí)。B出發(fā)后小時(shí)與A相遇。若B的自行車不發(fā)生故障，保持出發(fā)時(shí)的速度前進(jìn)，幾小時(shí)與A相遇，相遇點(diǎn)離B的出發(fā)點(diǎn)多少千米。在圖中表示出這個(gè)相遇點(diǎn)C,并寫出過程。24、（10分）已知：如圖，RtABC也Rt ADE，/ ABC= / ADE=90。，試以圖中標(biāo)有字母的點(diǎn)為端點(diǎn)，連結(jié)兩條線段, 如果你所連結(jié)的兩條線段滿足相等、垂直或平行關(guān)系中的一種，那么請(qǐng)你把它寫出來并說明理由。E25、（10分）某工廠有甲、乙兩條生產(chǎn)線，在乙生產(chǎn)線投產(chǎn)前，甲生產(chǎn)線已生產(chǎn)了200噸成品，從乙生產(chǎn)線投產(chǎn)開始，甲、乙兩條生產(chǎn)線每天生產(chǎn) 20噸和30噸成品。（1）分別求出甲、乙兩條生產(chǎn)線投產(chǎn)后

8、，各自的總產(chǎn)量y（噸）與從乙開始投產(chǎn)以后所用時(shí)間x（天）之間的函數(shù)關(guān)系式,并求出第幾天結(jié)束時(shí)，甲、乙兩條生產(chǎn)線的總產(chǎn)量相同;在如圖所示的直角坐標(biāo)系中，作出上述兩個(gè)函數(shù)和第一象限內(nèi)的圖象，并觀察圖象，分別指出第15天和第25天結(jié)束時(shí)，哪條生產(chǎn)線的總產(chǎn)量高?r-+1._lJLii+*-ii26、（14分）為保護(hù)環(huán)境，某校環(huán)保小組成員小敏收集廢電池，第一天收集1號(hào)電池4節(jié)、5號(hào)電池5節(jié)，總重量460克;第二天收集1號(hào)電池2節(jié)、5號(hào)電池3節(jié)，總重量240克。 求1號(hào)和5號(hào)電池每節(jié)分別重多少克？ 學(xué)校環(huán)保小組為估算四月份收集廢電池的總重量，他們隨意抽取了該月腜5天每天收集廢電池的數(shù)量，如下表：1號(hào)廢電池

9、（單位：節(jié)）29303228315號(hào)廢電池（單位：節(jié)）5153474950分別計(jì)算兩種電池的樣本平均數(shù)，并由此估算該月（30天）環(huán)保小組收集廢電池的總重量是多少千克?（2）如圖，用正方體石墩壘石梯，下圖分別表示壘到一、二、三階梯時(shí)的情況，那么照這樣壘下去,填出下表中未填的兩空，觀察規(guī)律。階梯級(jí)數(shù)一級(jí)二級(jí)三級(jí)四級(jí)石墩塊數(shù)39壘到第n級(jí)階梯時(shí)，共用正方體石墩 塊（用含n的代數(shù)式表示）。英語部分川.單項(xiàng)選擇（15分）（when the UFO arrived.)21.HeA. was sleep ingB. were sleep ing)22.I have bee n skat ingnine oA

10、. forB. si neeC. has sleptclock.C. atD. is asleepD. from)23.Would you mi ndthose old jea ns?'t wear B. not to wear(A. don ' t wear B. not to wearC.()24.- He' s never been to an aquarium.aren ' t wearingD. not weari ngA. Neither have I B. Neither do I)25.It' s reacold today,?A. do

11、es itB. doesn ' t itC. I never tooC. isn' t it)26.have you bee n swim ming?A. How many times B. How long )27.-Could you pleasein the room?-Oh, I ' m sorry.A. not smok ingB. not smoke)28.-Could we buy a pia no. Jack?-I ' m afraid thereeno ugh room for one in the house.A. aren ' t

12、B. areC. isn ' tFor five years.C. How oftenC. not to smoke)29.I got homethey were hav ing dinner.A. as soon asB. whileC. becausethe team for los ing the match.B. i n)30. We got madA. at)31.Shea lot of money on clothes.A. takesB. costs)32.I will stay at home and read books if it _A. is rai ningB.

13、 rains)33.The teacher en courages her stude nts _A. to speakB. speak ing)34.His fatherto Nanji ng. He _C. onC.spendstomorrow.D. I don ' t tooD. is itD. How muchD. don ' t smokeD. isD. afterD. aboutD. buysC. rainEn glish as much as possible.C. speakD. spokeD. will rainhas bee n, isB has bee n

14、, will be()35.The teacher said that theyA. isB. areIV .用所給詞語的適當(dāng)形式完成下列句子。look throughdiscover collect36. Do you know whoAmerica?37. He is in his bedroom andback next week.C. has gon e, is D. has gone, will be hard-work ing stude nts.C. were(5分)get overkeep dow nD. wasthe n ewspapers for a job.it soon

15、.38. He is angry with me now. But he will un dersta nd me and39. Her brother likes stamps and heover a hun dred stamps now.40. We shouldour voice in public places.V .補(bǔ)全對(duì)話(10分)(A )A: What are you doing, Jenny?B: 41.I ' m cleaning the house.A: Do you often do it?B: Sometimes when I' m free. 42

16、.A: Here it is. What will you do after you finishing the cleaning?B: 43.A: 44.Let ' s go swimming, shall we?B: Sounds great.A: Let me help you the n. 45.B: Thank you.A. Noth ing much.B. In this way you can finish the work sooner.C. What bad weather! D. Can ' t you see?E. Can you see the book

17、? F. It will be a pity to stay at home in such fine weather.G. Could you please pass me the towel?41. 42. 43. 44. 45.（B）用適當(dāng)?shù)脑~語補(bǔ)全下面對(duì)話。A: Hello. May I 46.Mr Brow n.B: Sorry, he isn ' t in. He 47.to France.A: Well, the n do you know 48.?B: He said he would return in a mon th.A: Oh, such a long time

18、. 49.can I get in touch with him?B: You may 50.A: What ' s his teleph one nu mber?B: It ' s 00334760488532.W .句子翻譯。（10分）51. 他們舉辦這場(chǎng)音樂會(huì)是為了給慈善事業(yè)籌集錢款。They held the concert tothe charity.52. 他的父母非常高興他們的兒子在學(xué)習(xí)上取得了很大的進(jìn)步。His pare nts are very happy that their sonin his study.53. 消防隊(duì)員很快把火撲滅了。The firef

19、ighters the fire soon.54. 你什么時(shí)候開始對(duì)集郵感興趣了？Whe n did you begi n tocollecti ng stamps?55. 如果你插隊(duì)的話，其他人會(huì)不高興的。Other people won ' t be happy.56. 我們班級(jí)三分之二的學(xué)生來自于南方。57. 你們不應(yīng)該違反學(xué)校規(guī)定。58. 他們倆當(dāng)時(shí)都沒有在家。59 .你聽說過這樣一個(gè)人嗎？ ?60.你介意把電視聲音調(diào)低嗎？?vn .完形填空（10分）Coke（可樂）is one of 61 drinks in the world. A lot of people enjoy6

20、2_ it. But now people begin to believe thatit ' s not aopd drink for health. There is lots of63 in the coke. Having much sugar is 64 for people. And italso has some caffe ine（咖啡因）in it. The caffe in e can get people into the habit（ 習(xí)慣）of drinking more coke whe n theyfeel 65 .If they don ' t

21、drink coke they 66 bad. And 67 thing is some people can ' t work or study 68 drinking several cups of coke every day. More and more people want to cut dow n the coke they drink and ask69help from the doctors. If you like drinking coke very much, I think you must have the Coke Habit. In fact drin

22、king morefruit and vegetable juice is 70_ for you.()61.A. more popularB. most popularC. popularD. the most popular()62 .A. drinkB. drinkingC. to drinkD. drinks()63.A. saltB.pepperC.sugarD. juice()64 .A. goodB. wellC. tiredD. bad()65. A. hu ngryB. fineC. thirstyD. excited()66.A. will feelB. are feeli

23、 ngC. feltD. feel()67.A. badB. worseC. the worstD. the worse()68.A. notB. withoutC. withD. after()69.A. toB. forC. onD. at()70 .A. goodB. wellC. bestD. bettervrn.閱讀理解（20分）(A)閱讀短文，然后根據(jù)短文內(nèi)容選擇正確答案。Passage 1Birds live in trees. Squirrels (松鼠)live in trees. But did you know that some frogs (蛙)live in tre

24、es, too?The tree frog is hard to find. It can change colors. On green leaves, it stays green. On a brown branch(樹枝),it turnsbrow n. Some tree frogs can cha nge from gree n to gold or blue.Tree frogs have legs and wide feet. They have sticky pads(粘性的肉趾)at the ends of their toes. These sticky toepads

25、keep the tree frogs from falli ng. Tree frogs have differe nt colors and markings(斑點(diǎn)) on their skins. Their eyesare differe nt, too. Some have gree n eyes, and others have bright red on es.The sound they make are differe nt, too. One frog makes a sound like a dog bark ing. Ano ther frog makes a loud

26、 no ise like a snore (打鼾).There is even a frog that whistles(吹口哨)！()71.These frogs are hard to find because.A. they stay in treesB. they can cha nge their colorsC. they have sticky padsD. they make surpris ing sounds()72 .If the seas on is spri ng, the colors of tree frogs is.A. goldB. brow nC. gree

27、 nD. blue()73.The tree frogs can stay on trees because.A. they have sticky padsB. they can cha nge their colorsC. they are strongD. they are small( )74.Which of the followi ng sentences is right?A. The tree frogs have differe nt colors and feathers (羽毛) on their skins.B. The tree frogs can ' t m

28、ake a loud noise like a snore.C. We can easily tell tree leaves from tree frogs.D. We may find tree frogs if we hear a sound like a snore in the forest.()75.The passage is mainly about.A. the colors of a special frogB. the sound of a special frogC. the eyes of a special frogD. a frog that is special

29、Passage 2Most of the flowers in nature are red, orange and yellow. If we have seen a black flower, it' s chanee in million.People have made a survey of colors of more tha n four thousa nd kinds of flowers and found that only eight of them are black.As we know, sun light is formed (形成)by seve n d

30、iffere nt colored lights. The wave len gth (波長(zhǎng))of each light is differe nt, so the qua ntity ( 量)of heat in each light is also differe nt. Flowers especially their petal ( 花瓣),are easy to be harmed (傷害)by high temperature.Black flowers can take in all the light waves which cause the flowers to dry u

31、p in a high temperature. So blackflowers can rarely （彳艮少）survive （ 挺過）sun light. But red flowers, orange flowers and yellow flowers can protect （保護(hù)）themselves from sun light by reflect ing （ 反射） the red light, orange light and yellow light, each of which has a large qua ntity of heat.（）76.People can

32、see black flowers.A. often B. never C. hardly ever D. always（ ）77.The underlined word“ them ” in the second paragraphers to （ 指）.A. a thousand B. colors C. flowers D. kinds（）78.The passage mainly tells us that.A. black flowers are too weak and it is difficult for them to grow upB. there are only eig

33、ht black flowers in n atureC. sun light has seve n differe nt colored lights and the wave len gth of each is differe ntD. why it ' s difficult for black flowers to grow（）79.How do red flowers, orange flowers or yellow flowers protect themselves from sun light?A. By taking in the light.B. By refl

34、ecting the light.C. By hidi ng themselves. D. By sleep ing.（）80.Which of the followi ng ideas is NOT right?A. The black flowers cannot protect themselves from the sun light.B. Red, orange and yellow flowers can also take in the light of all wave lengths.C. People have found that only a few kinds of

35、flowers are black.D. Flowers are easy to be harmed by very high temperature.（B）閱讀短文，然后根據(jù)短文內(nèi)容填寫表格或回答問題。Passage 3People live around the world. They like to have celebrations （慶?；顒?dòng) ）.In China, people celebrate New Year. NewYear is in January or February. They wear red clothes because red is the color t

36、hat will bring joy. Chin ese childre n get money in red envelopes for the new year. In Gambia （ 岡比亞）,people celebrate Independence Day （ 獨(dú)立日）.It is in February. They wear bright clothes and play music at the celebration. In England, people celebrate May Day. MayDay is in May. They wear pretty clothe

37、s to celebrate the coming spring. The children like to dance on this day. InAmerica, people celebrate Than ksgivi ng Day （感恩節(jié)）.It 'in November. They have a very big dinner with their families or friends. They eat turkeys and a lot of other delicious food. They have a long talk after dinner.Celeb

38、ratio ns Arou nd the World61.Celebrati onsMon thsClothesCh inaNew YearJan uary or February62.Gambia63.Februarybright clothes64.May DayMaypretty clothesAmericaThan ksgivi ng Day65.Passage 4Are you in terested in Helmut Newt on and Joh n Pilger? Do you want to lear n more about their painting? Come to

39、 Barbican Gallery （畫廊）!Barbica n GalleryOpe n Mon, Thu- Sat10am- 6 pm （Helmut Newt on ）;Tue, Wed, Sun10am- 9pm （ Joh n Pilger ）Tickets Adults （ 成人）¥ 7 Students, young people 12-17, over 60s¥ 5Disabled people with companion¥ 3.5 Under 12 freeBarbica n Card discou nt （ 折扣）20% off full p

40、rice ticketsGroup Booki ngs Can be made through the Groups line 7382 7211Adult groups of 10 or more ¥ 6 eachSchool and full time stude nt groups of 10 or more ¥ 2 each.86. Whe n may you go to Barbica n Gallery to see the pain ti ngs on Tuesday?方舟培訓(xùn)中心初二升初三數(shù)英測(cè)試題87. Does a child un der twelve

41、 n eed to pay any money to see the pain ti ngs?88. Whose paintings can you see if you go to the gallery on Saturday?89. What teleph one nu mber can you call if you want to book tickets?90. How much should you pay if you want to buy tickets for group of ten stude nts?IX .書面表達(dá)（10分）有些同學(xué)不喜歡英語，覺得學(xué)習(xí)英語不重要。

42、你不這樣認(rèn)為，你認(rèn)為學(xué)習(xí)英語很重要。英語是世界上使用最廣泛的（is the most widely used ），世界上四分之三的書籍和報(bào)紙是用英語寫的，互聯(lián)網(wǎng)上的信息（information）比四分之三還多的是用英語。并談一談你是怎樣學(xué)習(xí)英語的。數(shù)學(xué)部分一、選擇題（每小題有且只有一個(gè)答案正確，每小題4分，共40分）I、C; 2、A ； 3、D ； 4、A ； 5、B ； 6、B; 7、D ； 8、C ； 9、A ； 10、C;二、填空題（每小題4分，共32分）II、 X 2 ； 12、（5, 3） ； 13、某校初三年級(jí)400名學(xué)生體重情況的全體；14、80分15、BC=EF（答案不唯一）；

43、16、30； 17、9； 18、四棱錐或五面體；三、解答題（共78分）x+11 019、解：（X 1）1(2分)x+12(x1)2215方舟培訓(xùn)中心初二升初三數(shù)英測(cè)試題x 1 2x 2 2 （1分）x 1 （1 分）x 1 （2 分）數(shù)軸表示正確2分；20、證明：T AD丄BC , EF丄BC于F（已知） AD / EF（同位角相等，兩直線平等或在同一平面內(nèi)，垂直于同一條干線的兩條直線平行）/ 1= / E（兩條直線平行，同位角相等）/ 2= / 3（兩條直線平行，內(nèi)錯(cuò)角相等）又/ 3= / 1（已知）/ 1= / 2（等量代換） AD平分/ BAC（角平分線的定義）每空2分，共8分；21、圖形如下，每個(gè)3分，共9分；22、圖形略，（3分）（1）像字母M ; （2分）（2）橫坐標(biāo)變?yōu)樵瓉淼囊话耄v坐標(biāo)不變；（4分）23、（1）10 ； （2）1； （3）3 ； （每題