第一篇：2016年江西中考數學試卷答案

2016年江西中考數學試卷答案

參考答案與試卷解析

說明：

1、本卷共有六個大題，23個小題，全卷滿分120分。

2、本卷分為試題卷和答題卡，答案要求寫在答題卡上，不得在試卷上作答，否則不給分。

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一、選擇題

1、A

2、D

3、B

4、C

5、D

6、C

二、填空題 7、8、9、10、11、12、-1 a(x+y)(x-y)17° 50 ° 4

第二篇：2010年安徽中考數學試卷及答案

初中數學輔導網 www.tmdps.cn

一．選擇題：（本大題10小題，每小題4分，滿分40分）

1.在?1,0,1,2這四個數中，既不是正數也不是負數的是…………………………（）A）?B）0

C）1

D）2

2.計算(2x3)?x的結果正確的是…………………………（）A）8xB）6x2

C）8x

3D）6x3

3.如圖，直線l1∥l2，∠1＝55，∠2＝65，則∠3為…………………………（）A）500.B）550

C）600

D）650

4.2010年一季度，全國城鎮新增就業人數為289萬人，用科學記數法表示289萬正確的是

…………………………（）

A）2.89×107.B）2.89×106.C）2.89×105.D）2.89×104.5.如圖，下列四個幾何體中，其主視圖、左視圖、俯視圖中只有兩個相同的是

6.某企業1~5月分利潤的變化情況圖所示，以下說法與圖中反映的信息相符的是………………（）A）1~2月分利潤的增長快于2~3月分利潤的增長 B）1~4月分利潤的極差于1~5月分利潤的極差不同 C）1~5月分利潤的的眾數是130萬元 D）1~5月分利潤的的中位數為120萬元

7.若二次函數y?x?bx?5配方后為y?(x?2)?k則b、k的值分別為 2200………………（）

A）0.5

B）0.1

C）—4.5

D）—4.1

8.如圖，⊙O過點B、C。圓心O在等腰直角△ABC的內部，∠BAC＝900，OA＝1，BC＝6，則⊙O的半徑為………………（）

A）10B）23C）32D）13

初中數學輔導網 www.tmdps.cn 9.下面兩個多位數1248624……、6248624……，都是按照如下方法得到的：將第一位數字乘以2，若積為一位數，將其寫在第2位上，若積為兩位數，則將其個位數字寫在第2位。對第2位數字再進行如上操作得到第3位數字……，后面的每一位數字都是由前一位數字進行如上操作得到的。當第1位數字是3時，仍按如上操作得到一個多位數，則這個多位數前100位的所有數字之和是…………………………………………（）

A）495

B）497

C）501

D）503 10.甲、乙兩個準備在一段長為1200米的筆直公路上進行跑步，甲、乙跑步的速度分別為4m/s和6m/s，起跑前乙在起點，甲在乙前面100米處，若同時起跑，則兩人從起跑至其中一人先到達終點的過程中，甲、乙兩之間的距離y(m)與時間t(s)的函數圖象是 ……………………………………………………………………………（）

填空題（本大題4小題，每小題5分，滿分20分）11.計算：3?12.不等式組?6?2?_______________.??x?4?2,?3x?4?8的解集是_______________.13.如圖，△ABC內接于⊙O，AC是⊙O的直徑，∠ACB＝500，點D是BAC上一點，則∠D＝_______________

14.如圖，AD是△ABC的邊BC上的高，由下列條件中的某一個就能推出△ABC是等腰三角形的是__________________。（把所有正確答案的序號都填寫在橫線上）①∠BAD＝∠ACD

②∠BAD＝∠CAD，③AB+BD＝AC+CD ④AB-BD＝AC-CD

三，（本大題共2小題，每小題8分，共16分）15.先化簡，再求值：(1?1a?1)?a?4a?4a?a22，其中a??1

初中數學輔導網 www.tmdps.cn 16.若河岸的兩邊平行，河寬為900米，一只船由河岸的A處沿直線方向開往對岸的B處，AB與河岸的夾角是60，船的速度為5米/秒，求船從A到B處約需時間幾分。（參考數據：3?1.7）

四．（本大題共2小題，每小題8分，共16分）17.點P(1，a)在反比例函數y?kx0的圖象上，它關于y軸的對稱點在一次函數y?2x?4的圖象上，求此反比例函數的解析式。

18.在小正方形組成的15×15的網絡中，四邊形ABCD和四邊形A?B?C?D?的位置如圖所示。⑴現把四邊形ABCD繞D點按順時針方向旋轉900，畫出相應的圖形A1B1C1D1，⑵若四邊形ABCD平移后，與四邊形A?B?C?D?成軸對稱，寫出滿足要求的一種平移方法，并畫出平移后的圖形A2B2C2D

2初中數學輔導網 www.tmdps.cn 五．（本大題共2小題，每小題10分，共20分）

19．在國家下身的宏觀調控下，某市的商品房成交價由今年3月分的14000元/m2下降到5月分的12600元/m2

⑴問4、5兩月平均每月降價的百分率是多少？（參考數據：0.9?0.95）

⑵如果房價繼續回落，按此降價的百分率，你預測到7月分該市的商品房成交均價是否會跌破10000元/m2？請說明理由。

20.如圖，AD∥FE，點B、C在AD上，∠1＝∠2，BF＝BC ⑴求證：四邊形BCEF是菱形

⑵若AB＝BC＝CD，求證：△ACF≌△BDE

21.上海世博會門票價格如下表所示：

某旅行社準備了1300元，全部用來購買指定日普通票和平日優惠票，且每種至少買一張。⑴有多少種購票方案？列舉所有可能結果；

⑵如果從上述方案中任意選中一種方案購票，求恰好選到11張門票的概率。

初中數學輔導網 www.tmdps.cn 22.春節期間某水庫養殖場為適應市場需求，連續用20天時間，采用每天降低水位以減少捕撈成本的辦法，對水庫中某種鮮魚進行捕撈、銷售。

九（1）班數學建模興趣小組根據調查，整理出第x天（1?x?20且x為整數）的捕撈與銷售的相關信息如下：

⑴在此期間該養殖場每天的捕撈量與前一末的捕撈量相比是如何變化的？ ⑵假定該養殖場每天捕撈和銷售的鮮魚沒有損失，且能在當天全部售出，求第x天的收入y（元）與x（天）之間的函數關系式？（當天收入＝日銷售額—日捕撈成本）

試說明⑵中的函數y隨x的變化情況，并指出在第幾天y取得最大值，最大值是多少？

23.如圖，已知△ABC∽△A1B1C1，相似比為k（k?1），且△ABC的三邊長分別為a、b、c（a?b?c），△A1B1C1的三邊長分別為a1、b1、c1。

⑴若c?a1，求證：a?kc；

⑵若c?a1，試給出符合條件的一對△ABC和△A1B1C1，使得a、b、c和a1、b1、c1進都是正整數，并加以說明；

⑶若b?a1，c?b1，是否存在△ABC和△A1B1C1使得k?2？請說明理由。

初中數學輔導網 www.tmdps.cn

初中數學輔導網 www.tmdps.cn

初中數學輔導網 www.tmdps.cn

第三篇：word版2014北京中考數學試卷及答案

2014北京中考數學

2014年北京中考數學試卷

一、選擇題

下面各題均有四個選項，其中只有一個是符合題意的.1.2的相反數是

A.2B.-2C.-D.2.據報道，某小區居民李先生改進用水設備，在十年內幫助他居住小區的居民累計節水 300 000噸，將300 000用科學計數法表示應為

6564A.0.3×10B.3×10C.3×10D.30×10

3.如圖，有6張撲克牌，從中隨機抽取一張，點數為偶數的概率是

A.B.C.D.4.右圖是某幾何體的三視圖，該幾何體是

A.圓錐B.圓柱

C.正三棱柱D.正三棱錐

5.某籃球隊12名隊員的年齡如下表所示：

則這12名隊員年齡的眾數和平均數分別是

A.18,19B.19,19C.18，19.5D.19,19.56.園林隊在某公園進行綠化，中間休息了一端時間.已知綠

化面積S（單位：平方米）與工作時間t（單位：小時）的函數關系的圖象如圖所示，則休息后園林隊每小時綠化

面積為

A.40平方米B.50平方米

C.80平方米D.100平方米

7.如圖，O的直徑AB垂直于弦CD，垂足是E，∠A＝22.5°，OC＝4，CD的長為

A.2B.4C.4D.8

8.已知點A為某封閉圖形邊界上一定點，動點P從點A出發，沿

其邊界順時針勻速運動一周.設點P運動的時間為x，線段AP的長為y，表示y與x的函數關系的圖象大致如右圖所示，則該封

閉圖形可能是

二、填空題

429.分解因式：ax－9ay＝____________.10.在某一時刻，測得一根高為1.8m的竹竿的影長為3m，同時測得一根旗桿的影長為25m，那么這根旗桿的高度為______________m.11.如圖，在平面直角坐標系xOy中，正方形OABC的邊長為2.寫出一個函數y＝（k≠0），使它的圖象與正方形OABC有公

共點，這個函數的表達式為______________.12.在平面直角坐標系xOy，對于點P（x，y），我們把點P′（-y+1，x+1）叫做點P的伴隨

點.已知點A1的伴隨點為A2，點A2的伴隨點為A3，點A3的伴隨點為A4，…，這樣依次得到點A1，A2，A3，…，An，….若點A1的坐標為（3,1），則點A3的坐標為______，點A2014的坐標為__________；若點A1的坐標為（a，b），對于任意的正整數n，點An均在x軸上

方，則a，b應滿足的條件為____________.三、解答題

13.如圖，點B在線段AD上，BC∥DE，AB＝ED，BC＝DB.求證：∠A＝∠E.0-114.計算：（6－π）＋（-）－3tan30°＋||.15.解不等式x－1≤x－，并把它的解集在數軸上表示出來

.216.已知x－y＝，求代數式（x+1）－2x+y（y－2x）的值.217.已知關于x的方程mx－（m+2）x+2＝0（m≠0）.（1）求證：方程總有兩個實數根；

（2）若方程的兩個實數根都是整數，求正整數m的值.18.列方程或方程組解應用題：

小馬自駕私家車從A地到B地，駕駛原來的燃油汽車所需油費108元，駕駛新購買的純 電動汽車所需電費27元.已知每行駛1千米，原來的燃油汽車所需的油費比新購買的純電動 汽車所需的電費多0.54元，求新購買的純電動汽車每行駛1千米所需的電費.四、解答題

19.中，AE平分∠BAD，交BC于點E，BF平分∠ABC，交AD于點F，AE與BF交于點P，連

接EF，PD.（1）求證：四邊形ABEF菱形；

（2）若AB＝4，AD＝6，∠ABC＝60°，求tan∠ADP的值.20.根據某研究院公布的2009-2013年我國成年國民閱讀調查報告的部分相關數據，繪制的統計圖表如下：

根據以上信息解答下列問題：

(1)直接寫出扇形統計圖中m的值：

(2)從2009到2013年，成年國民年人均閱讀鄹書的數量每年增長的幅度近似相等，估算

2014年成年國民年人均閱讀圖書的數量約為______本；

(3)2013年某小區傾向圖書閱讀的成年國民有990人，若該小區201 4年與201 3年成年

國民的人數基本持平，估算2014年該小區成年國民閱讀圖書的總數量約為______本.21.如圖，AB是⊙O的直徑，C是的中點，⊙O的切線BD交AC的延長線于點D，E是OB的中

點，CE的延長線交切線DB于點F，AF交⊙0于點H，連接BH.(1)求證：AC=CD；

(2)若OB=2，求BH的長.22.閱讀下面材料：

小騰遇到這樣一個問題：如圖1，在△ABC中，點D在線段BC上，∠BAD=75°，∠CAD=30°，AD=2，BD=2DC，求AC的長.小騰發現，過點C作CE∥AB，交AD的延長線于點E，通過構造△ACE，經過推理和計算能夠使問題得到解決（如圖2）

請回答：∠ACE的度數為______，AC的長為______

參考小騰思考問題的方法，解決問題：

如圖3，在四邊形ABCD中，∠BAC=90°，∠CAD=30°，∠ADC=75°，AC與BD變于點E，AE=2，BE=2ED．求BC的長.五、解答題（本題共22分，第 23題7分，第24題7分．第25題8分）

223在平面直角坐標系xOy中，拋物線y=2x+mx+n經過點A(0，-2)，B(3，4).(1)求拋物線的表達式及對稱軸；

(2)設點B關于原點的對稱點為C，點D是

拋物線對稱軸上一動點，記拋物線在A,B

之間的部分為圖象G（包含A，B兩點）.若直線CD與圉象G有公共點，結合函數

圖象，求點D縱坐標t的取值范圍.24在正方形ABCD外側作直線AP，點B關于直線AP的對稱點為E，連接BF，DE，其中DE

交直線AP于點F.（1）依題意補全圖1；

（2）若∠PAB=20°．求∠ADF的度數；

（3）如圖2，若45°＜∠PAB＜90°，用等式表示線段AB，FE，FD之間的數量關系，并證明.25.對某一個函數給出如下定義：若存在實數M＞0，對于任意的函數值y，都滿足-M≤y≤M，則稱這個函數是有界函數.在所有滿足條件的M中，其最小值稱為這個函數的邊界值.例如，下圖巾的函數是有界函數，其邊界值是1.(1)分別判斷函數y(x＞0)和y=x+1(-4＜x≤2)是不是有界函數？若是有界函散，求其邊界

值；

(2)若函數y=-x+l(a≤x≤b，b＞a)的邊界值是2，且這個函數的最大值也是2，求b的取

值范圍；

2(3)將函數y=x(-l≤x≤m，m≥0)的圖象向下平移m個單位，得到的函數的邊界值是t，當m在什么范圍時，滿足≤t≤1？

第四篇：2018年江西中考英語試題及答案

2018年江西中考英語試題及答案

二、單項填空(8分)請閱讀下面各題,從題中所給的A、B、C、D四個選項中選出可以填入空白處的最佳選項,并在答題卡上將該項涂黑。(每小題1分)28.The food is very delicious in that restaurant.We could go and ______ it? A.sell B.help C.produce D.try 29.Susan never gets upset when she has to wait in line.She is very ______.A.shy B.honest C.funny D.patient 30.--Could I speak to Paul? I phoned _____.--Sorry he is still in his meeting.A.late B.earlier C.earliest D.later 31.Sorry I'm late.I _______ with a friend and I completely forgot the time.A.talk B.am talking C.was talking D.will talk 32.I live near a big _______.It gets very noisy on match days.A.hospital B.store C.bank D.playground 33.--Can students go online during lessons?--They can ________ it is for that lesson.A.if B.or C.so D.but 34.Kids have to take many after school classes.They _______ hard to study for good grades.A.push B.are pushed C.are pushing D.have pushed 35.We ________ a party for Kate It's supposed to be a surprise.A.were having B.had C.will have D.have had

三、完型填空(25分)A)請先閱讀下面短文,掌握其大意,然后從各小題所給的A、B、C、D四個選項中選出可以填入相應空白處的最佳選項,并在答題卡上將該項涂黑。(每小題1分)There are purple clothes, purple handbags, purple bicycles, purple furniture, even purple computers!So purple is one of the most 36 colors today.But in the past, purple was a very expensive and unusual color.Let’s take a look at the rich 37 of the color purple.Some scientists believe that the first plants to appear on Earth over 500 million years ago 38 looked purple, not green.Plants today are green because 39 use green chlorophyll(葉綠素)to produce energy.40 these early plants probably used something called retinal, which is a dark purple color.During the time of the roman Empire(37 BC-476 AD), it was very 41 to make purple dye(染料).The dye came from sea snails(海螺).But10.000 dead sea snails 42 you just one gram(克)of purple dye… as well as a very bad smell!This 43 purple dye was called Tyrian purple, and it was the preferred 44 of emperors.In 16th--century England, purple was 45 for the kings family members.Queen Elizabeth Is clothes were purple, but ordinary people were not allowed to 46 the color.In 1856.William Perkin, an 18-year-old 47 student, noticed something strange while doing an experiment(實驗).The chemicals(化學藥品)he used to clean his instruments 48 with the chemicals he used in his experiment and produced a bright purple color.This 49 Perkin to start a company using this chemical mixture to make purple dye.The dye was much 50 than sea snail dye.Thanks to Perkin, now anyone can afford to wear purple clothes.36.A.peaceful B.popular C.exciting D.serious 37.A.history B.style C.research D.product 38.A.gradually B.especially C.exactly D.probably 39.A.others B.they C.we D.some 40.A.And B.So C.But D.Until 41.A.dangerous B.common C.difficult D.strange 42.A.got B.passed C.wasted D.cost 43.A.basic B.harmful C.special D.perfect 44.A.color B.smell C.plant D.animal 45.A.even B.never C.seldom D.only 46.A.wear B.sell C.change D.make 47.A.geography B.science C.art D.math 48.A.compared B.mixed C.collected D.kept 49.A.survey B.suggestion C.discovery D.exam 50.A.healthier B.thicker C.cheaper D.darker B)請先閱讀下面短文,掌握其大意,然后用方框中所給詞的適當形式填空,并將答案填寫到答題卡的相應位置。每個詞限用一次。(每小題1分)know life different back and interesting sign real find they The planet Mars is the closest and most similar planet to Earth.It is very 51 to scientists.For example, Mars has seasons with 52 weather, but other planets have the same temperatures all year round.Was there 53 on Mars? To find out, scientists need 54 if Mars ever had water.In 2004.two robot explores(探測器), or 'rovers', called Spirit and Opportunity were sent to look for 55 of water.These rovers can drive over rocks 56 all kind of rough ground.They can also use cameras and send photos 57 to Earth.First, the two rovers found chemicals and patterns(圖文)in the rocks that were probably made by water.Then, they moved to another area and 58 other rocks which may have been created by water.Now scientists think there was probably water on the planet long ago.Today 59 are still not sure if there was life on the mars.They 60 need more information to decide.The discoveries of the two rovers answered some old questions, but they also brought up many new ones.四、閱讀理解（40分）

A)請閱讀下面短文,根據短文內容從每小題所給的A、B、C、D四個選項中選出最佳選項,并在答題卡上將選項涂黑。(每小題2分)A Science museum(The Science of Survival, IMAX&SIMEX)The Science Museum has something for everyone.Entry to the museum is free.Offer applies to IMAX 3D Cinema, SIMEX and The Science of Survival exhibition only.IMAX ￡7.50 SIMEX ￡4.00 The Science of Survival ￡6.00 Opening Times: Daily 10: 00-18: 00 Visit Time: 2 hours National Gallery Opening Times: Daily 10am-7pm Wednesday until 9 pm Admission: ￡8 adults.￡4 students, under 12s free Tickets: Available daily from 10 am Telephone: 020 7747 2885 Visituswww.tmdps.cn ZSL London Z There are over 12, 000 amazing animals for you to see.These are just a few things which make a visit to ZSL London Zoo a great day.Ticket Price: ￡ 17.00 Opening Times: Daily 10: 00-17: 30 Visit Time: 4 hours 61.How much does the ticket to ZSL London Zoo cost? A.￡8.00.B.￡17.50.C.￡17.00.D.￡7.50.62.Where is the Science of Survival exhibition held? A.At the National gallery B.At the Science Museum C.At ZSL London zoo D.At IMAX 3D Cinema 63.How long is the National Gallery open on Wednesday? A.4 hours B.8 hours C.7 hours D.11 hours B

A young woman turns around and around quickly, and jumps high.In the background, a young girl reads a rejection(拒絕)letter from a ballet school.You have the wrong body for ballet, 'it says,' and at thirteen, you are too old.This was one of the most popular advertisements(廣告)of 2014 and it describes American ballet Theatre's principal(主要的)dancer Misty Copeland.This was not a real letter.But Copeland says it is very similar to letters from her childhood.While many dancers start at the age of three.Copeland only began to study ballet in 1995 as a thirteen-year-old.People often told her that she was too old, or that she didn't have the perfect body type(She is only 157 cm tall).Her family moved a lot, and it was sometimes difficult for her to attend ballet classes.But Copeland loved dancing and did not want to give up.She stayed with her ballet teacher during the week and spent time with her family only at the weekend.This was a difficult life, but she worked hard and won her first national competition when she was fourteen years old.Copeland joined the American Ballet Theatre in 2000 and performed in many ballets over the next few years.In 2007, she became a solo(單獨的)performer, and in 2015 she became its principal dancer.Copeland is now a dancer, author and Broadway performer.She also stars in the 2015 film A Ballerina's Tale.So what's next? According to Copeland, anything is possible: “My career(職業)really is just now beginning.' 64.How old was Copeland when she became the principal dancer? A.13 B.14 C.25 D.33 65.Why was it difficult for Copeland to attend ballet classes? A.Because her family moved a lot.B.Because she was not a good dancer.C.Because she had no invitation letter.D.Because she had the wrong body type.66.Which of the following is TRUE according to the passage? A.Copeland became successful because of the advertisement.B.Copeland had to spend a lot of time away from her parents.C.Copeland won her first national competition as a solo performer.D.Copeland has ended up her career as an actress on Broadway.67 What's the writer’s opinion of Copeland?

A.Copeland sets an example who never gives up.B.Copeland was too old to start ballet at thirteen.C.Copeland has made her achievements by accident.D.Copeland was lucky to get support from the ballet school.C

Many people say dolphins are intelligent.They seem to be able to think, understand and learn things quickly.But are they as smart as humans, or are they more like cats and dogs? Dolphins use their brains quite differently from the way humans do.But scientists say dolphins and humans are very similar in some ways.How? Like humans, every dolphin has its own ”name“.The name is a special whistle(哨聲).Each dolphin chooses a specific(特有的)whistle for itself, usually by its first birthday Dolphins are like people in other ways, too.They ”talk“ to each other about a lot of things-such as their age, their feelings, and finding food.They also use a system of sounds and body language to communicate.Understanding dolphin conversation is not easy for humans.No one ”speaks dolphin“ yet, but some scientists are trying to learn.Dolphins are also social animals.They live in groups called pods, and they often join others from different pods to play games and have fun--just like people.Scientists believe playing together is something only intelligent animals do.Dolphins and humans are similar in another way: both species make plans for getting things they want.In the seas of southern Brazil, for example, dolphins use an intelligent plan to get food.When there are fish near a boat, dolphins signal(發信號)to the fishermen to put their nets in the water.Using this method, the men can catch a lot of fish.Why do dolphins help the men? There is an advantage for them they get to eat some of the fish that escape(逃脫)from the net.68.What is a dolphin's “name”? A.It is a kind of game.B.It is a body sign.C.It is a dolphin’s age.D.It is a specific sound.69.What does the underlined word ”others“ refer to? A.Other fishes.B.Other people C.Other dolphins D.Other games 70.What can we infer from the passage? A.Some scientists can understand dolphins system of sounds.B.Dolphins probably help fishermen by using their body language.C Humans join dolphins' groups to get things we want.D Dolphins can talk to humans about their age and their feelings.71.What's the main idea of the passage? A.Dolphins can communicate with each other at birth.B.Dolphins are social animals because they play together.C.Dolphins are smart and are like humans in some ways.D.Dolphins help humans do many things like catching fish.D

Every year on 15th October, over 200 million people around the world take part in Global Handwashing Day.But why do we have a day for something we do all the time? Well, research shows that not enough people often wash their hands with soap.Experts believe that this leads to the deaths of millions of people every year.Sidibe, a public health expert says soap is the most beautiful invention in public health'.Washing your hands with soap can have a huge impact on reducing(減少)the spread of diseases.Handwashing with soap prevents babies from getting ill and keeps children healthy and in school.However, washing hands with soap does not happen as often as you might think.This is partly because there aren't enough resources(資源)in poorer countries, but it's also because for many people, handwashing is simply not part of their everyday life.It's not easy to get people to change habits they learned in early childhood--but this is what Global Handwashing Day wants to do.In 2008, the Indian cricket team joined around 100 million Indian schoolchildren in washing their hands to promote(促進)the first ever Global Handwashing Day.Every year since then, many different events have been held around the world.In 2014.Global Handwashing Day was used in the fight against Ebola, a very serious disease, with events held in affected(受感染的)African countries.Today, local and national leaders continue to use the day to spread the message about the importance of clean hands.The hope is that handwashing becomes a necessary part of people's lives and improves the health of millions around the world.72.Who started Global Handwashing Day? A.Public health experts.B.The Indians.C.African schoolchildren.D.Government leaders.73.What does the underlined word ”impact" mean? A.Danger.B.Influence.C.Background.D.Problem.74.What's the main idea of the last paragraph? A.Washing hands with soap is good for public health.B.Washing hands with soap doesn't become part of people's lives.C.People are holding many different events to fight against diseases.D.People all over the world are encouraged to wash hands with soap.75.What would be the best title for the passage? A.Learning to Use Soap.B.Fighting Against Diseases.C.Living a Healthy Life.D.Changing Your Habits.B)請先閱讀下面短文,掌握其大意然后根據短文內容從下面方框內的七個選項中選擇五個還原到文中,使短文意思通順、結構完整,并在答題卡上將其序號涂黑。(每小題2分)Is there a connection between music and language? According to recent studies, the answer is yes: 76 Here, we look at two examples A recent study by researcher Kraus shows that playing a musical instrument can improve a person's hearing ability.77 The people in the first group were musicians, while those in the second group had no musical training.The musicians were able to hear the talking person more clearly.78 Think about violinists in an orchestra(管弦樂團).When the violinists play with the group, they hear their own instrument and many others, too.But the violinists must listen closely to what they are playing, and pay no attention to the other sounds.In this way, musicians are able to focus on certain sounds, even in a room with lots of noise.Schlaug, a doctor at Harvard Medical School, works with stroke(中風)patients.Because of their illness, these people cannot say their names, addresses, or other information normally.However, they can still sing.79 Why does this work? Schlaug isn't sure.Music seems to make different parts of the brain work, including the damaged(損壞的)parts.This might help patients to use that part of the brain again.Music improves concentration(注意力), memory, listening skills, and our overall language abilities.80 Playing an instrument or singing can help us do better in school and keep our brain sharp(敏銳的)as we get older.Music is not only enjoyable, it's also good for us in many other ways.A.It can even help sick people get better.B Music helps people solve some hearing problems.C.Music improves certain language abilities in the brain.D.The violinists develop their memories by playing the violin.E Musicians hear better because they learn to pay attention to certain sounds.G.In his study two groups of people listened to a person talking in a noisy room.五、補全對話(5分)請閱讀下面對話,根據對話內容從方框中選擇恰當的句子填入空白處,使對話通順、合理，意思完整,并在答題卡上將其序號涂黑。(每空一句,每小題1分)(Sandra and Luke plan their trip to Cape Town.S=Sandra L=Luke)S:OK,that' s the flight(航班).Let’s look for a hotel now.81 L: Three nights--Friday, Saturday and Sunday.Are there any hotels near the airport? S: Yes, there are.But they are expensive.Just a minute… no, there aren't any cheap hotels near the airport.They are all expensive.82 L: Wow!Well, what about a youth hostel(青年旅社)? Is there a youth hostel near the airport? S: OK, let's see.I don't think so no, there isn't.I don't like youth hostels.83 L: OK.Let’s look in the city centre.Are there any cheap hotels there? S: Yes, of course there are L: Well, that's good.And is there a bus to the city centre? S: A bus from the airport? Yes, there is.84 There isn't a train, but that's OK.L: And there are taxis, too.S: 85 OK, so let's look at these hotels.A.I think the bus is fine.B.We need a room for two.C.Do you like a youth hostel? D.Is it for two nights or three? E.They aren't very comfortable.F.There's a bus every twenty minutes.G.This one is four hundred dollars a night.六、書面表達(15分)假如國外中學生來你校進行為期一周的交流學習,期間計劃參加一項中國傳統文化的主題活動,為此向你們征求活動方案(plan)請你根據下面表格中的信息提示,寫一篇英語短文,介紹你提供的活動方案,內容包括:茶或者民樂介紹,活動安排以及與之相關的理由。要求:1.從表格中任選一個主題,合理安排活動;2.短文條理清楚,行文連貫,內容可適當發揮;3.短文中不能出現真實的人名和地名;4.詞數不少于80,開頭和結尾已給出,不計入總詞數。Chinese Culture Introduction Schedule Reasons Tea Past and present Time:______ Places: tea farm, tea house Activities: 1.tea processing 2.a tea art performance … Folk Music Music pieces and traditional instruments Time:_______ Places: music room, school hall Activities: 1.take musical instrument classes 2.attend a folk music concert …

Hello, friends.I've got a plan for you which may help you learn about Chinese culture.First of all, I'd like to introduce _________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ Hope you will have a good time.2018年江西中考英語試題及答案

二、單項填空(共8小題,每小題1分,共8分)28-31 DDBC 32-35 DABC

三、完形填空(共25小題,每小題1分,共25分)A)36-40 BADBC 41-45 CACAD 46-50 ABBCC B)51.interesting 52.different 53.life 54.to know 55.signs 56.and 57.back 58.found 59.they 60.really

四、閱讀理解(共20小題,每小題2分,共40分)61-63 CBD 64-67 DABA 68-71 DCBC 72-75 BBDA 76-80 CGEFA

五、補全對話(共5小題,每小題1分,共5分)81-85 DGEFA

六、書面表達(15分)Possible Version One: Hello, friends.I've got a plan for you which may help you learn about Chinese culture.First of all, I'd like to introduce tea.It has a long history.It is said that Shen Nong discovered it as a drink.Tea is one of the most popular drinks in China.So we will have some interesting activities about it for you.On Saturday morning, you are going to visit a big farm where you can learn about tea processing.On Saturday afternoon, you are going to a tea house after dinner where you can watch a tea art performance.Why do we plan a visit to a tea house for you? Because you can lean a lot more about tea culture there.You will see a young lady in a Chinese traditional dress who shows you how a cup of tea is made with tea sets, You can enjoy it and relax yourselves while listening to pieces of traditional folk music.Hope you will have a good time.Possible Version Two: Hello, friends.I've got a plan for you which may help you learn about Chinese culture.First of all, I'd like to introduce Chinese folk music.We have many famous pieces of music such as Jasmine Flowers and Gaoshan Liushui.We have erhu, dizi and many other different musical instruments.So we will have some interesting activities about it for you.You are going to talk musical instrument classes on Friday afternoon and our music teachers are going to teach you how to play musical instruments in the music rooms.On Saturday night, you are going to attend a folk music concert in the school hall.Why will we hold a concert for you? There are talented students from our school who can play very well.It's a good chance for you to enjoy the beauty of some famous pieces of folk music and you will surely lose yourselves in them.Hope you will have a good time.

第五篇：江西歷年中考數學試題及答案

2011江西中考數學答案>>

江西省2012年中等學校招生考試數學學科 真題試卷(WORD含答案）考生須知：

1.全卷共 六頁，有六大題，24小題.滿分為120分.考試時間120分鐘.2.本卷答案必須做在答題紙的對應位置上，做在試題卷上無效.溫馨提示：請仔細審題，細心答題，相信你一定會有出色的表現！

一、選擇題(本大題共有6小題，每小題3分，共18分。請選出各題中一個符合題意的正確選項，不選、多選、錯選，均不給分)1.－1的絕對值是（）

A．1 B．0 C．－1 D．±1 故應選A．

－1 0 1 2．等腰三角形的頂角為80°，則其底角為（）A．20° B．50° C．60° D．80° 故應選B．

3．下列運算正確的是（）A． + = B． ÷ = C． × = D． =

故應選D．

⒋如圖，有 三戶家用電路接入電表，相鄰的電路等距排列，則三戶所用電線（A． 戶最長 B．b戶最長 C．c戶最長 D．三戶一樣長

（第四題）

b c）⒌如圖，如果在陽光下你的身影方向為北偏東60°的方向，那么太陽相對于你的方向是（）A．南偏西60° B．南偏西30° C．北偏東60° D．北偏東30° N（第五題）

S 故應選A．

⒍某人駕車從A地上高速公路前往B地，中途服務區休息了一段時間。出發時油箱存油40升，到達B后剩余4升，則從出發到達B地油箱所剩的油y(升)與時間t（h）之間的函數大致圖像是（）www.xkb1.co m y y 40 40

二、填空題（本大題共8個小題，每小題3分，共24分．）⒎一個正方體有 六 個面。⒏當 時，的值是 ．

9.如圖，經過⊙O的圓心O，AB與⊙O相切與點B，若∠A=50°，則∠C= 20 度．

⒑已知關于 的一元二次方程 有兩個相等的實數根，則m的值是-1 ． ⒒已知 , ,則 5 ．

⒓已知一次函數 經過(2,－ 1)，（－ 3,4）兩點，則其圖像不經過第 三 象限。：解：（第十二題）

；圖像經過一，二，四象限，不經過第三象限。

⒔如圖，已知正五邊形ABCDE，僅用無刻度的直尺準確作出其一條對稱軸。（保留作圖痕跡）

A M（第十三題）

⒕如圖，正方形ABCD與正三角形AEF的頂點A重合，若將 繞其頂點A旋轉，在旋轉過程中，當BE=DF時，則∠BAE的值是 15°，165° ．

①(第十四題)②

三、解答題（本大題共4個小題，每小題6分，共24分．解答應寫出文字說明、證明過程或演算步驟．）⒖（1）化簡： 解：= =

⒗（1）.解不等式組： ①，② 解：由①，②可得 綜合可知解集為。數軸表達：-1 0 2（第十六題）

⒘如圖，兩個菱形◇ABCD，◇CEFG，其中點A，C ,F在同一直線上，連接BE,DG.(1).在不添加輔助線時，寫出其中兩組全等三角形；（2）.證明BE=DG。G 解(1).可知 D ，(2).①連接BD,CE.則AF垂直且平分BD和GE。

點D與點B；點G與點E均關于直線AF對稱，便可得 A C F BE=DG。（軸對稱圖形對應點的連線段相等）

②∵菱形的對角線平分一組對角，且直線AF所形成的 B 角為180°，∴∠DCG=∠BCE，DC=BC,CG=CE E ∴(“SAS”), BE=DG。

⒙如圖，有大小質地相同僅顏色不同的兩雙拖鞋（分左.右腳）共四只，放置于地板上。【可 表示為（A1.A2）,(B1.B2)】注：本題采用“長方形”表示拖鞋。

（1）.若先從兩只左腳拖鞋中取一只，再從兩只右腳拖鞋中隨機取一只，求恰好匹配成一雙相同顏色的拖鞋的概率。

（2）.若從這四只拖鞋中隨機取出兩只，利用樹形圖或表格列舉出所有可能出現的情況，并 求恰好匹配成一雙相同顏色的拖鞋的概率。解(1).可列樹狀圖求解 ∵

A1 B1（第十八題）A2 B2 A2 B2 ∴P1（恰好匹配成一雙相同顏色的拖鞋）=(2).① ∵

A1 A2 B1 B2 A2 B1 B2 A1 B1 B2 A1 A2 B2 A1 A2 B1 ∴P2（恰好匹配成一雙相同顏色的拖鞋）= ②

A1 A2 B1 B2 A1 A1 A2 A1 B1 A1B2 A2 A2A1 A2 B1 A2B2 B1 B1 A1 B1 A2 B1 B2 B2 B2 A1 B2 A2 B2 B1 ∴P2（恰好匹配成一雙相同顏色的拖鞋）= 四.（本大題共2小題，每小題8分共十六分。）

⒚如圖，等腰梯形ABCD放置于平面直角坐標系中，已知 反比例函數的圖像經過點C。（1）.求點C的坐標及反比例函數的解析式。

（2）.將等腰梯形ABCD向上平移m個單位長度，使得點B恰好落于雙曲線上，求m的值。解(1).Ⅰ：可以過點C作 軸的平行線CH，則CH⊥ 軸。∵ 易證 ∴CH=DO=3,BH=AO;OH=4。∴點C的坐標為（4，3）； D 3 C Ⅱ：可以設反比例函數的解析式為 E ∵反比例函數的圖像經過點C，∴k =4×3=12;-2 A 0 H B 6

解析式為

（2）.（第十九題）

∵可知，隨著等腰梯形沿著 軸正方向平移，始終保持與原圖形全等形，即OB的長度不會變化。∴平移后點B的對應點為圖中的點E，其坐標為（6,2），m的值為2.⒛小華寫信給老家的爺爺，問候“八一”建軍節。折疊長方形信紙裝入標準信封時發現：若將信紙如圖①連續兩次對折后，沿著信封口邊線裝入時，寬綽有3.8cm；若將信紙如圖②三等分折疊后，寬綽1.4cm，試求信紙的紙長和信封的口寬。

圖②（第二十題）解(1).本題可列出方程求解。

設：信紙的紙長為，信封的口寬為（cm）.信紙的紙長為28.8cm, 信封的口寬為11cm.五.（本大題共2小題，每小題9分，共18分）。

21.我們約定：如果身高在選定標準的±2%范圍之內都稱為“普通身高”。為了解某校九年級男生具有“普通身高”的人數，從該校九年級男生中隨機挑選出10名男生，并分別測量其身高（單位：cm），收集整理如下統計表：

（第二十一題）男生

序號 ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩

身高

（cm）

163 171 173 159 161 174 164 166 169 164 根據以上表格信息，解答如下問題：

（1）.計算這組數據的三個統計量：平均數，中位數和眾數；

（2）.請選擇其中一個統計量作為選定標準，找出這十名男生中具有“普通身高”的男生是哪幾位，并說明理由。

（3）.若該年級共有280名男生，按（2）為選定標準，請估計該年級男生中具有“普通身高”的男生有多少名？

解(1).平均數=（163+171+173+159+161+174+164+166+169+164）× 166.4cm；

中位數=（164+166）÷2=165cm（注意：求中位數應將原數據由大至小排列，若數據為偶數個，應取最中間的兩數的平均數；若數據為奇數個，僅須取最中間的數即可。）（2）.我們這里以統計量中的平均數為例，則“普通身高”的男生范圍是：（1-2%）×166.4~（1+2%）×166.4即163.072≦ ≦169.728cm;因此⑦⑧⑨⑩名男生具有“普通身高”。（3）.我們這里以統計量中的平均數為例，則該年級男生中具有“普通身高”的男生人數： 280×（4÷10）=112名。

22.如圖，小紅家的陽臺上放置了一晾衣架，圖①為其側面示意圖，立桿AB，CD相交于點O，B,D兩點立于地面，經測量AB=CD=136cm,OA=OC=51cm,OE=OF=34cm,現將晾衣架完全穩固張開，扣鏈EF成一條線段，且EF=32cm.(1).求證AC∥BD；

（2）.求扣鏈EF與AB的夾角∠OEF的度數；（精確至0.1°）

（3）.小紅的連衣裙晾總長為122cm，垂掛到晾衣架上是否會拖落至地，請通過計算說明理由。

B D 解：(1).①從三角形有關性質的角度解題：證明：∵OA=OC,OB=OD,且∠AOC=∠BOD(對頂角相等);∠B=∠D,∠C=∠A(等邊對等角)，∴∠B=∠D=∠C=∠A（等量代換）∴AC∥BD（內錯角相等，兩直線平行）②從相似三角形的角度解題：∵可易證△AOC～△BOD(兩組對邊成比例且夾角相等的三角形相似)∴∠B=∠D,∠C=∠A；∴AC∥BD。（2）.可構造直角三角形，再運用三角函數解答。如圖，過點O作EF邊的垂線。∵△OEF為等腰三角形OK⊥EF，∴EK=FK=16cm（“三線合一”）,OE=34cm ∵ cos∠OEF= ,∠OEF。

（3）.可過點A作BD邊的垂線段AH①∵可易證△OEK∽△ABH, ∴AH ②∵AH等于等腰△OBD，△OAC兩底邊的高線之和，∴AH ∵AH <122cm∴垂掛到晾衣架上會拖落至地.六.（本大題共2小題，每小題10分，共20分）

23.如圖，已知二次函數 與 軸交與A,B兩點（點A在點B的左邊），與 軸交與點C。（1）.求A,B兩點的坐標：（2）.二次函數，頂點為點P ① 直接寫出二次函數 與二次函數 有關圖像的兩條相同性質；

②是否存在實數k使得△ABP為等邊三角形，若存在，求出k值；若不存在，請說明理由。③若直線 與拋物線 交與E,F兩點，問EF的長度是否會發生變化，若不會變化，求出EF的值；若會發生變化，請說明理由。

圖一 圖二

解（1）.依照題意，求拋物線與 軸的交點坐標，可將原二次函數表達式 轉化成其交點式即，則點A,B的坐標分別為（1，0）；（3,0）。（2）.Ⅰ.同理 轉化成其交點式即

則二次函數 與二次函數 有關圖像的兩條相同性質可以是：①拋物線均經過點A（1,0）與點B（3，0）；②拋物線的對稱軸均為直線。新 課標 第 一網 Ⅱ.存在。∵拋物線 其頂點必在直線 即點P的橫坐標為2.如圖一，當點P位于第一象限時，可過點P作AB邊的垂線段PM。PM=tan60°×（2÷2）=

此時點P為（2，），則，k=-

如圖一，當點P位于第四象限時，可過點P作AB邊的垂線段PN。PN= tan60°×（2÷2）=

此時點P為（2，-），同理，k= Ⅲ.不會發生變化。

如圖二，∵拋物線 其頂點必在直線 即點P的橫坐標為2.若 直線 與拋物線 交與E,F兩點，則有

∴EF恒等于6.24.已知，紙片⊙Ｏ的半徑為2，如圖1.沿著弦AB折疊操作。（1）.如圖2，當折疊后的⌒AB 經過圓心Ｏ時，求⌒AB 的長度；

（２）．如圖３，當弦ＡＢ＝２時，求折疊后⌒AB 所在圓的圓心Ｏ’到弦ＡＢ的距離；（３）．在如圖１中，將紙片⊙Ｏ沿著弦ＣＤ折疊操作：

①如圖４，當ＡＢ∥ＣＤ時，折疊后的⌒ＣＤ 和⌒AB 所在圓外切與點Ｐ時，設點Ｏ到弦ＣＤ，ＡＢ的距離之和為ｄ，試求ｄ的值；

②如圖５．當ＡＢ與ＣＤ不平行時，折疊后的⌒ＣＤ 和⌒AB 所在圓外切與點Ｐ,點Ｍ,Ｎ分別為ＡＢ，ＣＤ的中點

試探究四邊形ＯＭＰＮ的形狀，并證明。

Ｂ

圖1.Ｂ 圖2． 圖３．

圖４．B Ｃ F 圖５．L L D 解：（1）.可以過點Ｏ作OE垂直于弦AB，并連接AE,BE,BO,AO;由圖形的對稱性可知四邊形AEOB為菱形◇，△AEO,△BEO均為等邊三角形，∠AOB=120.⌒AB = ；

（2）.折疊后的圓Ｏ’與圓Ｏ是等圓，設折疊后⌒AB 所在圓的圓心Ｏ’到弦ＡＢ的距離為m.可過Ｏ’作AB的垂線段即為m.。m=tan60°×1=

（3）.可作AB垂線，交圓與點E,點G，且經過點P，EF必定垂直且平分AB，CD。GE=GP;HP=HF；距離之和為ｄ=（GE+GP+HP+HF）÷2=4÷2=2.（4）.可設點K,點L分別是⌒APB，⌒CPD 所在圓的圓心，連接KL。

∵折疊后⊙K，⊙O,⊙L均是等圓

∵點K與點O;點L與點O是分別關于AB,CD的對稱點，∴點M,點N分別是OK,OL的中點；

連心線KL必定經過外切點P；點M,N,P分別是△KOL三邊的中點。∴MP=NO= =OL;MP∥OL;∴四邊形OMPN為平行四邊形。