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2021年浙江省寧波市中考化學(xué)試卷(61~6424項(xiàng),不選、錯選均不給分)年4月22日是第52個世界地球日我國的主題“珍愛地球人與自然和諧共生下列行為合這一主題的是( )A.提倡使用含磷洗衣粉B.C.空礦泉水瓶回收利用D.大量開采化石燃料緩解能源危機(jī)“操作千萬條,安全第一條。下列實(shí)驗(yàn)操作符合安全要求的是( )A.點(diǎn)燃酒精燈 B.轉(zhuǎn)移蒸發(fā)皿C.聞氣味 D.稀釋濃硫酸3.如圖是物質(zhì)甲和乙反應(yīng)生成丙的微觀示意圖。下列說法正確的是( A.該反應(yīng)屬于化合反應(yīng)B.甲、乙、丙都是有機(jī)物C.該反應(yīng)中參加反應(yīng)的甲和乙質(zhì)量比為1:1D.該反應(yīng)在反應(yīng)前后原子的種類發(fā)生了改變不同品牌的洗手液pH一般不同,25℃時四種洗手液的pH如圖所示。下列說法錯誤的是( )apHbacdapH7類別物質(zhì)類別物質(zhì)單質(zhì)氧化物酸X0a﹣﹣﹣+4﹣bdNa2SO3等+6﹣ceFA.X表示堿abdNaOHNa2SO4H2O在5.6g鐵粉中,先逐滴加入一定量的Cu(NO3)2溶液,充分反應(yīng)后再逐滴加入AgNO3溶液,剩余固體質(zhì)量與所加溶液總質(zhì)量的關(guān)系如圖所示。下列說法正確的是( )M1gCum1gbcCuAgNO3溶液的反應(yīng)m321.6D.e點(diǎn)溶液中不含Cu(NO3)2二、填空題(本題共3小題,每空2分,共10分)510電池包意外進(jìn)水,可能引發(fā)電動汽車自燃,其機(jī)理如圖:這里的可燃性氣體是 。家庭醫(yī)藥箱里有一瓶標(biāo)簽缺損的醫(yī)用雙氧水,為測定其溶質(zhì)質(zhì)量分?jǐn)?shù),小寧設(shè)計(jì)了如圖實(shí)驗(yàn):在試10mL通過測量量筒內(nèi)水的體積就可以大致計(jì)算出雙氧水質(zhì)量分?jǐn)?shù)。實(shí)驗(yàn)中用排水法測量氧氣的體積是因?yàn)檠鯕饩哂?的性質(zhì)。若俯視讀得量筒中水的體積則測得的雙氧水質(zhì)量分?jǐn)?shù) “偏大“偏小不變。BaCl2NaOHNa2CO3Na2SO4小組做了如圖所示實(shí)驗(yàn)。則(1)無色溶液A中一定含有的溶質(zhì)是 。(2)白色粉末的成分是 。三、實(shí)驗(yàn)探究題(本題共1小題,每空3分,共12分O2COCO2【查閱資料】脫氧劑(還原鐵粉能夠吸收氧氣和水蒸氣?!緦?shí)驗(yàn)設(shè)計(jì)】用如圖所示的裝置進(jìn)行實(shí)驗(yàn)(已略去夾持裝置?!緦?shí)驗(yàn)步驟】①檢查裝置氣密性;②通入一定量氮?dú)?;③通入該氣體,點(diǎn)燃酒精燈?!緦?shí)驗(yàn)現(xiàn)象】步驟③實(shí)驗(yàn)過程中,ABFE【實(shí)驗(yàn)結(jié)論】該氣體由 組成。【實(shí)驗(yàn)反思】(1)C裝置的作用是 。(2)步驟②通入一定量氮?dú)獾哪康氖?。(3)E裝置中氧化銅粉末發(fā)生反應(yīng)的化學(xué)方程式為 四、解答題(本題共2小題,第11、12題各6分,共12分)“青團(tuán)”是寧波的一種傳統(tǒng)食物。在“青團(tuán)”制作過程中,需要往糯米粉中添加艾草(或艾草汁(C10H10O(1)側(cè)柏蓮?fù)枷阌陀?種元素組成。(2)7.3g側(cè)柏蓮?fù)枷阌椭刑荚氐馁|(zhì)量為 g。(3)側(cè)柏蓮?fù)枷阌驮谘鯕庵型耆紵漠a(chǎn)物是 。碳酸鈉溶液總質(zhì)量/g25.050.075.0100.0125.0150.0175.0200.0碳酸鈉溶液總質(zhì)量/g25.050.075.0100.0125.0150.0175.0200.0氣體總質(zhì)量/g2.22.2沉淀總質(zhì)量/g002.55.0mn9.09.0表中n= 。所取的反應(yīng)后50g溶液中溶質(zhì)是 。所用碳酸鈉溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù)是多少?C。C。A。A。C。C。氫氣(H2。8(1)(2)偏大。9(1)(2)氯化鋇和碳酸鈉(BaCl2、Na2CO3。10.一氧化碳和二氧化碳;【實(shí)驗(yàn)反思】除去二氧化碳?xì)怏w;排凈裝置中所有的空氣;為CO+CuOCu+CO2,故填:CO+CuOCu+CO211.(1)3(2)6(3)二氧化碳和水。12(1)由表中數(shù)據(jù)可知,25g2.5g175.0g9.0g,m=7.5,n=9.0。溶液中溶質(zhì)是氯化鈣、氯化氫。Na2CO3+2HCl═2NaCl+H2O+CO2↑,106 4450g×x 2.2g=x=10.6%,答:所用碳酸鈉溶液中溶質(zhì)的質(zhì)量分?jǐn)?shù)是10.6%。2021年浙江省寧波市中考物理試卷一、選擇題(51~344~5418在如圖所示的“汽油機(jī)模型”實(shí)驗(yàn)中,將少量的汽油噴入筒內(nèi),用軟木塞塞住筒口,搖動起電機(jī),( )吸氣沖程B.壓縮沖程C.做功沖程D.排氣沖程SS1LSSLS1(A.B.C.D.如圖所示,當(dāng)我們看遠(yuǎn)處物體時,遠(yuǎn)處物體的光線正好聚焦在視網(wǎng)膜上。當(dāng)我們從看遠(yuǎn)處物體改為10cm分別是()B.C.D.0.9g/cm310cm2cm( )B.水面高度始終保持不變C.冰塊漂浮之后,受到的浮力逐漸變小D.水對容器底部的壓力最多增大1.0N5.1909α1911原因,下列知識中不需要用到的是()同種電荷相互排斥電荷的定向移動形成電流力是改變物體運(yùn)動狀態(tài)的原因一個α粒子的質(zhì)量比一個電子的質(zhì)量大得多二、填空題(52226.科學(xué)方法是開啟大自然奧秘之門的鑰匙。如圖所示,用鼓錘分別重敲和輕敲鼓面,銅鼓發(fā)出的聲音的響度不同,同時可以通過乒乓球彈的高度,來顯示出鼓面振動的情況。通過實(shí)驗(yàn)可知:鼓面振動的 越大,響度越大。為了便于描述光的傳播路徑和方向,科學(xué)上引入了光線的概念,實(shí)際上光線并不存在。為了形象地表示磁體周圍磁場分布的強(qiáng)弱和方向科學(xué)上引入了 的概念實(shí)際上它也并不存在7.2021年5月10日,成都市某小區(qū)電梯內(nèi)發(fā)生一起電瓶車自燃事故。電瓶車自燃的原因很多,常見的是由于電源短路,形成大電流并產(chǎn)生大量的熱。這一過程中化學(xué)能轉(zhuǎn)化為電能,電能再轉(zhuǎn)化為 能。針對上述電梯內(nèi)電瓶車自燃隱患,寧波市未雨綢繆,早就采取了相應(yīng)的措施,其中“阻車感系統(tǒng)已在多個小區(qū)推行如圖所示是某阻車感應(yīng)系統(tǒng)在電梯轎廂內(nèi)的信息傳遞示意圖一旦電瓶進(jìn)入電梯就會被攝像頭檢測到語音告警器將進(jìn)行語音提示同時電梯門不會關(guān)閉這一信息傳過程與反射弧類似,圖中的 (填序號)類似于反射弧中的感受器。電動汽車一般由電池包供電。若電池包意外進(jìn)水,可能引發(fā)電動汽車自燃,其機(jī)理如下:這里的可燃性氣體是 。8(6)動。2021314OA55.7cm。桿影的形成是由于光在同一均勻介質(zhì)中沿 傳播。圖中桿影從O到A指向 方。預(yù)測2021年6月20日正午時刻該圭桿的桿影長度將比55.7cm (“大小。夏天的紫外線較強(qiáng),人們在戶外活動時間過長,會造成皮膚灼傷,甚至誘發(fā)皮膚癌。小寧利用紫外動機(jī)轉(zhuǎn)動,遮陽棚上防紫外線的遮陽布展開。調(diào)試時發(fā)現(xiàn),當(dāng)戶外紫外線增強(qiáng)到設(shè)定值時,S2仍未閉合。為了達(dá)到設(shè)計(jì)要求,需要把滑動變阻器R1的滑片P向 (填“左”或“右)移動。從安全用電的角度分析,進(jìn)戶線a應(yīng)該是 線。容量2.0L額定電壓220V額定功率1500W某品牌電熱水壺的銘部分內(nèi)容如表所示當(dāng)該電熱水壺正常工作時至少需要 才能把質(zhì)量為2.0kg、初溫為25℃的水加熱到容量2.0L額定電壓220V額定功率1500W三、實(shí)驗(yàn)探究題(本題共2小題,每空3分,共15分)水對容器側(cè)壁有壓強(qiáng),水從小孔水平射出的速度與哪些因素有關(guān)?【提出猜想】水從小孔水平射出的速度可能與小孔在水中的深度有關(guān)?!静殚嗁Y料和思考】如圖甲所示,h,vH(小孔到落點(diǎn)的水平距離H,svvhvs、H、h【實(shí)驗(yàn)步驟】①將容器置于木塊上,如圖乙所示。②堵住三個小孔,往容器中加入適量的水記錄h和H。③打開小孔,同時測量并記錄從三個小孔水平射出的水流射程s。④換高度不同的木塊,重復(fù)步驟①~③?!緦?shí)驗(yàn)數(shù)據(jù)及分析】實(shí)驗(yàn)序號123456789小孔abcabcabch/cm102030102030102030H/cm302010403020504030s/cm354135404950455859hsH(填“增大”或“減小。采用控制變量的方法通過比較實(shí)驗(yàn)序號為 的三組數(shù)據(jù)可以得出水從小孔平射出的速度v與小孔在水中的深度h有關(guān)。小寧再分別用食鹽水和酒精替換水進(jìn)行實(shí)驗(yàn),目的是為了探究液體從小孔水平射出的速度v否與 有關(guān)。小寧用如圖所示電路研究電阻的并聯(lián)。按電路圖連接電路,閉合開關(guān)S,電流表A1、A2、A3的示數(shù)分別為0A、0.40A和1.20A。如果路元件完好,接線時發(fā)生了錯誤,該錯誤是 。使用電流表時,當(dāng)被測電流值大于電流表量程的一半時,能減小實(shí)驗(yàn)誤差。本實(shí)驗(yàn)所用電源壓為8V,電流表有兩個量程(0~0.6A、0~3A。為減小實(shí)驗(yàn)誤差,小寧重新選擇定值電阻,實(shí)驗(yàn)里可供選擇的定值電阻的阻值有:5Ω、10Ω、20Ω、50Ω,應(yīng)該選用的2個電阻阻值分別為 。四、解答題(313514101582313(5)反思是一種良好的學(xué)習(xí)品質(zhì)。OABF1F1F2d1d2F1×d1=F2×d2ABFGGG動之間也必須滿足一定條件。請你說出這一條件,并予以證明。14(1018529242.2kW8km/h飛艇的氣囊形狀像一個橄欖,在前進(jìn)過程中可以減小 。充滿氫氣后氣囊受到的浮力是多少?(1.29kg/m3)這次飛行,飛行所需時間、蒸汽機(jī)做的功及飛行時受到的平均阻力各為多少?L6V2.4W”字樣,其燈絲電阻隨溫度的升高而增大;OA、OB、OC(同一條金屬絲的阻值與其長度成正比S,PAOLLL金屬絲OA的電阻Ra= Ω。繼續(xù)滑動圖甲中滑片P到OB段,當(dāng)PB=OB時,電流表示數(shù)為0.36A;當(dāng)PB=OB時,小燈P上移動,當(dāng)PO=OC時,電壓表示數(shù)為4.8V;當(dāng)PO=OC時,電壓表示數(shù)為6.0V。求金屬絲OC的電阻Rc的大小和電源電壓大小。C。D。A。B。B。幅度;磁感線。7(1)(2)①(3)氫氣。8(1)(2)(3)小。9(1)(2)火。10.解:水吸收的熱量:吸Q=cmΔt=4.2×103J/(kg?℃)×2.0kg×(100℃﹣25℃)=6.3×105J;Q吸=W電,吸因?yàn)闊崴髡9ぷ?,所以,P=P額又因?yàn)镻=,所以加熱時間:t===420s故答案為:420。11(1)(2)1、5、9(3)液體種類。12(1)A1(2)5Ω、20Ω。(1F1F2F1L1=F2L2ABF1和F2F1×d1=F2×d2AB速轉(zhuǎn)動;(2)使用動滑輪勻速提升物體時,不計(jì)摩擦和繩重,拉力:F=(G+G動,若拉力F<G,即:(G+G動所以,G>G動,F(xiàn)GGG動。(1)ABF1F2F1×d1=F2×d2ABGG動。使用動滑輪勻速提升物體時,不計(jì)摩擦和繩重,拉力:F=(G+G動若拉力F<G,即:(G+G動)<G,所以,G>G動。(1)飛艇的氣囊形狀像一個橄欖,在前進(jìn)過程中可以減小空氣阻力;浮 空氣 (2)充滿氫氣后氣囊受到的浮力:F=ρ gV=1.29kg/m3×10N/kg×2100m3浮 空氣 由v=可得,飛行所需時間:t===3.5h;蒸汽機(jī)做的功:W=Pt=2.2×103W×3.5×3600s=2.772×107J;飛艇飛行時,受到的阻力與牽引力是一對平衡力,則由W=Fs可得,飛行時受到的平均阻力:f=F== =990N。(1)LUL=6V,PL=2.4W,由P=UI可得,燈泡正常發(fā)光時通過的電流:IL===0.4A;S,PAOLOA0Ω,Ra=0Ω;圖甲中:①當(dāng)PB=OB時,Rb與燈泡L串聯(lián),此時電路中的電流I1=0.36A,②當(dāng)PB=OB時,Rb與燈泡L串聯(lián),此時小燈泡正常發(fā)光,此時電路中的電流I2=IL=0.4A;圖乙中,OBOA③當(dāng)PO=OC時,Rc與燈泡L串聯(lián),電壓表測燈泡兩端的電壓,即UL′=4.8V,,④當(dāng)PO=OC時Rc與燈泡L串聯(lián)電壓表測燈泡兩端的電壓即此時燈泡正常發(fā)光由②④燈泡都正常發(fā)光可知,Rb=Rc,即Rc=2Rb,,由④可得,電源的電壓U=UL+I2×Rc=6V+0.4A×由Rc=2Rb可知,Rb=Rc,即①③電路是等效的,由③可得,電源的電壓U=UL′+I1×Rc=4.8V+0.36A×I、II:Rc=60Ω,U=12V。浙江省寧波市2021年中考數(shù)學(xué)試卷一、選擇題(每小題4分,共40分.在每小題給出的四個選項(xiàng)中,只有一項(xiàng)符合題目要求1.在﹣3,﹣1,0,2這四個數(shù)中,最小的數(shù)是( )A.﹣3 B.﹣1 C.0 2.計(jì)算的結(jié)果是( )A.B.C.D.32021年5月15日“天問一號著陸巡視器成功著陸于火星烏托邦平原此時距離地球約千米.數(shù)320000000科學(xué)記數(shù)法表示為( )A. B.C.D.如圖所示的幾何體是由一個圓柱和一個長方體組成的,它的主視圖是( )B.C. D.甲乙丙丁98991.60.830.8甲、乙丙丁四名射擊運(yùn)動員進(jìn)行射擊測試每人10次射擊成績的平均數(shù) (單位甲乙丙丁98991.60.830.8根據(jù)表中數(shù)據(jù),要從中選擇一名成績好且發(fā)揮穩(wěn)定的運(yùn)動員參加比賽,應(yīng)選擇( A.甲 B.乙 C.丙 D.丁要使分式有意義,x的取值應(yīng)滿足( )A.B.C.D.7.如圖,在中,于點(diǎn)D,7.如圖,在中,于點(diǎn)D,.若E,F(xiàn)分別為,的中點(diǎn),則的長為()B. C.1 D.我國古代數(shù)學(xué)名著《張邱建算經(jīng)》中記載“今有清灑一斗直粟十斗,醑酒一斗直粟三.今持粟三斛得酒五斗問清醑酒各幾何意思是現(xiàn)在一斗清酒價值10斗谷子一斗醑酒價值3斗谷子現(xiàn)在拿30斗谷子,共換了5斗酒,問清酒、醑酒各幾斗?如果設(shè)清酒x斗,醑酒y斗,那么可列方程組為( )A.B.C. D.如圖,正比例函數(shù) 的圖象與反比例函數(shù)的圖象相交于A,B兩點(diǎn),點(diǎn)B的橫坐標(biāo)為2,當(dāng)時,x的取值范圍是( )A.或B.或C.或D.或如圖是一個由5張紙片拼成的,相鄰紙片之間互不重疊也無縫隙,其中兩張等腰直角三角形紙片的面積都為,另兩張直角三角形紙片的面積都為,中間一張矩形紙片的面積為, 與相交于點(diǎn)O.當(dāng)?shù)拿娣e相等時,下列結(jié)論一定成立的是( )A.B.C. D.二、填空題(530)的絕對值是 .分解因式: .一個不透明的袋子里裝有3個紅球和5個黑球,它們除顏色外其余都相同.從袋中任意摸出一個是紅球的概率為 .抖空竹在我國有著悠久的歷史是國家級的非物質(zhì)文化遺產(chǎn)之一.如示意圖,分別與相切于點(diǎn)延長交于點(diǎn)P.若,的半徑為則圖中的長為.(結(jié)果保留 )在平面直角坐標(biāo)系中對于不在坐標(biāo)軸上的任意一點(diǎn)我們把點(diǎn)稱為點(diǎn)A“倒數(shù)點(diǎn)如圖矩形的頂點(diǎn)C為頂點(diǎn)E在y軸上函數(shù)的圖象與交于點(diǎn)A.若點(diǎn)B是點(diǎn)A“倒數(shù)點(diǎn)且點(diǎn)B在矩形的一邊上則的面積為 如圖在矩形中點(diǎn)E在邊上,與關(guān)于直線對稱點(diǎn)B的對稱點(diǎn)F在邊上,G為中點(diǎn),連結(jié)分別與交于M,N兩點(diǎn),若,,則 的長為 , 的值為 .三、解答題(本大題有8小題,共80分)17.計(jì)算:.解不等式組:.如圖是由邊長為1的小正方形構(gòu)成的的網(wǎng)格,點(diǎn)A,B均在格點(diǎn)上.在圖1中畫出以 為邊且周長為無理數(shù)的且點(diǎn)C和點(diǎn)D均在格點(diǎn)(畫出一個即可).在圖2中畫出以 為對角線的正方形 ,且點(diǎn)E和點(diǎn)F均在格點(diǎn)上.如圖,二次函數(shù)(a為常數(shù))的圖象的對稱軸為直線 .a向下平移該二次函數(shù)的圖象,使其經(jīng)過原點(diǎn),求平移后圖象所對應(yīng)的二次函數(shù)的表達(dá)式.11~521~518212,解答下列向題:455我國紙傘的制作工藝十分巧妙.如圖傘不管是張開還是收攏傘柄 始終平分同一平面內(nèi)條傘骨所成的角,且,從而保證傘圈D能沿著傘柄滑動.如圖2是傘完全收攏時傘骨的示意圖此時傘圈D已滑動到點(diǎn)的位置且三點(diǎn)共線,為中點(diǎn),當(dāng)時,傘完全張開.求 的長.D.(參考數(shù)據(jù):)某通訊公司就手機(jī)流量套餐推出三種方案,如下表:A方案B方案C方案每月基本費(fèi)用(元)2056266每月免費(fèi)使用流量(兆)1024m無限超出后每兆收費(fèi)(元)nnA,B,C三種方案每月所需的費(fèi)用y(元)與每月使用的流量x(兆)之間的函數(shù)關(guān)系如圖所示.m,nA1024元x(兆)之間的函數(shù)關(guān)系式.C23.如圖(1(證明體驗(yàn))如圖1, 為的角平分線,點(diǎn)E在 上,.求證: 平分 .(2(思考探究)如圖的條件下為 上一點(diǎn)連結(jié)交G.若,,,求 的長.(3(拓展延伸)如圖3,在四邊形中,對角線平分,點(diǎn)E在上,.若 ,求的長.如圖1,四邊形 內(nèi)接于, 為直徑,上存在點(diǎn)E,滿足,連結(jié)并延長交的延長線于點(diǎn)F, 與 交于點(diǎn)G.若,請用含 的代數(shù)式表列.如圖2,連結(jié).求證;.如圖3,在(2)的條件下,連結(jié),.①若,求 的周長.②求的最小值.1.A2.D3.B4.C5.D6.B7.C8.A9.C10.A11. 12.x(x-3)13.14.2π15.或16.2;17(1)解:原式(2)解:解不等式①,得,解不等式②,得,所以原不等式組的解是18(1)解:如圖四邊形即為所作,答案不唯一.解:如圖,四邊形 即為所求作的正方形.19(1)解:.∵圖象的對稱軸為直線,∴,∴(2)解:∵,∴二次函數(shù)的表達(dá)式為,3∴平移后圖象所對應(yīng)的二次函數(shù)的表達(dá)式為20(1)解:(萬元,445補(bǔ)全條形統(tǒng)計(jì)圖:(2)解:(萬元).答:5月份“黨史”類書籍的營業(yè)額為10.5萬元解:4月份“黨史”類書籍的營業(yè)額為:(萬元).∵且1~3月份的營業(yè)總額以“黨史類書籍的營業(yè)額占當(dāng)月營業(yè)總額的百分比都低于45月份,∴521(1)解:∵B為中點(diǎn),∴,∵,∴(2)解:如圖,過點(diǎn)B作 于點(diǎn)E.∵∴∵平分,.,∴.在∴∴中,.,,∵,∴,D22(1)解:解:設(shè)函數(shù)表達(dá)式為,把,代入,得,解得,∴y關(guān)于x的函數(shù)表達(dá)式.(注:x的取值范圍對考生不作要求)(3)解:(兆).由圖象得,當(dāng)每月使用的流量超過3772兆時,選擇C方案最劃23(1)解:∵ 平分,∴,∵,∴,∴∴,,∴(2)解:∵∴∵∴,即,,,,平分∴.∵∴∵,.,∴解:如圖,在 上取一點(diǎn)F,使得 ,連結(jié).∵∴平分,∵,∴,∴.∵∴.,∵,∴,∴.∵,∴.∵,又∵,∴∴,∴,∴24(1)解:∵ 為的直徑,∴,∵,∴,∴解:∵ 為的直徑,∴,∴,∴,∵,∴.又∵,∴,∴解:①如圖,連結(jié) .∵∴為的直徑,.在中,, ,∴.∵,∴,即,∴∵∴.,.∵在中,,∴,∴∵在.中,,∴.在中,,∴,∴的周長為 .②如圖,過點(diǎn)C作于H.∵,∴.∵,∴.∴,∵,∴.∵,∴.∵,∴,∵,∴,∴.設(shè),∴,∴.在中,,∴,當(dāng)時,的最小值為3,∴的最小值為浙江省寧波市2021年中考英語試卷一、完形填空(本題有15小題,每小題1分,共計(jì)15分)閱讀下面短文,掌握大意,然后從A、B、C、D四個選項(xiàng)中選出最佳選項(xiàng)。Larryseemedalwayssilentanddidn'thaveanyfriend.HisteacherMr.Brown1.Oneday,heaskedLarrytomeethimafterclass.Mr.Brownsaid,"Iseethatyoudon'ttalktoanyoneorshowany2.inanything.What'swrong?"Larryreplied,"Sir,Ihaveavery3.life.IhavetofacesomeverysadincidentsandIkeep4.them.Becauseofthis,Ican'tfocusmyattentiononanythinganddon'tevenfeelliketalkingto5.."Mr.Brownlistenedcarefully,thoughtforawhileandsaid,"Wouldyoulikesomelemonade(檸檬汽水)?"Larryfeltalittle6.a(chǎn)ndnervouslyreplied,"Yes,thankyou!"While7.lemonade,Mr.Brownaddedmoresaltonpurposeandkeptthequantityoflow.Larrymadea8.faceassoonashedrankasipofthatlemonade.Seeingthis,Brownasked"Youdon'tlikeit?"""Um…it'sjustthereisabittoomuch9.init,"Larryanswered.Mr.Brownstoppedhim,"Oh,itdoesn'tmatter.Iwillthrowitaway."Astheteacherwasliftingtheglassto10.,Larrystoppedhimandsaid,"Sir,pleasedon'tthrowitaway.11.weputalittlemoresugarinthelemonade,itwillbefinetodrink."Hearingthis,Mr.Brownsaid12.,"ThisiswhatIwanttohearfromyou.Toimprovethe13.oflemonade,wedon'tneedtoremovethesaltfromit,wecanjustaddsometoit.Similarly,wecannotremovesadthingsthathave14.happenedtous,butweaddsweetnessofgoodexperiencesinourlife.Ifyoukeeponcryingaboutyour15.neitheryourpresentwillberightnorthefuturewillbebright."Larryrealizedhisproblemandpromisedtoliveapositivelife.1.A.enjoyed B.noticed C.believed D.forgot2.A.fear B.a(chǎn)nger C.interest D.politeness3.A.simple B.difficult C.quiet D.common4.A.lookingfor B.learningfrom C.laughingat D.thinking5.A.a(chǎn)nybodyB.somebodyC.everybodyD.nobody6.A.surprisedB.tiredC.boredD.shamed7.A.buyingB.cookingC.preparingD.drinking8.A.seriousB.friendlyC.patientD.strange9.A.sugarB.waterC.saltD.lemonade10.A.keepitawayB.takeitawayC.drinkitupD.useitup11.A.IfB.SinceC.AlthoughD.Unless12.A.bravelyB.coldlyC.happilyD.a(chǎn)ngrily13.A.tasteB.colorC.shapeD.smell14.A.neverB.a(chǎn)lreadyC.nearlyD.seldom15.A.styleB.habitC.decisionD.past二、閱讀理解(本題有15小題,每小題2分,共計(jì)30分)閱讀下面材料,從每題所給的A、B、C、D四個選項(xiàng)中選出最佳選項(xiàng)。BookreviewbyJarradOn theweekendIreadatotallyamazingbookcalledItwassuchacoolbookbecauseitwasfullof magicaltomanymysteriouslands.Youneverknewwherethe charactersweregoingtoendupnext.The maincharactersareaboycalledSiegfriedandhislittlesisterHannah.arealwaysreadyforamysteriousadventureeverytimetheystepouttheir door.bookcontainstwelveseparatestories.I won'tspoilitforyou,butwhatIlovedthemostwasthatthemain werejustlikerealkids.TheywerethesortofkidsthatI'dwant tobefriendswith.I wouldreallyrecommend(推薦)thatyoureadthisbook,especiallyifyoulikefairies,dragons, magic,adventuresandsurprises.ItisthebestbookthatIreadall year.TherewasnothingIdidnotlikeaboutthisbook,exceptthatitshouldhavebeenlonger!WhatdidJarradthinkofthisbook?Common. B.Amazing. C.Humorous D.Scary.Whoarethemainreadersforthisbookreview?ThestudentsinJarrad'sclass.TheteachersinJarrad'sschool.Peoplewhohavereadthebook.D.Kidswhoareinterestedinadventures.Whatdoesthecoverofthisbooktellyou?Whatthewriter'snameis.Whenthebookcameout.Whothemaincharactersare.Inwhichcountrythestoryhappened閱讀理解Haveyoueverenteredatropicalrainforest(熱帶雨林)?RainforestsmakeuponlyapartoftheEarth'ssurface,aboutsixpercent,buttherearemorekindsoftreesthanotherareainthewholeworld.TropicalrainforestsareinAfrica,Asia,CentralandSouthAmerica,Australia,andonPacificislands.ThelargesttropicalrainforestistheAmazon(亞馬遜)RainforestinAmerica,whichcovers1.2billionacres,oralmostfivemillionsquarekilometres.ThelargestrainforestisinWesternAfrica.Rainforestsprovideuswithmanythings.Infact,theAmazonRainforestisthe"lungsourplanet"becauseitproduces20%oftheworld'soxygen(氧氣).Onefifthoftheworld'sfreshwaterisalsofoundintheAmazonRainforest.Furthermore,onehalfoftheworld'sspeciesofanimals,plantsandinsectsliveintheEarth'srainforests.80%ofthefoodweeatgrewintherainforest.25%ofthedrugswetakewhenwearesickaremadeofplantsthatonlyinrainforests.Someofthesedrugsareevenusedtofightandcurecancer.Therearefourdifferentlevelsoftreesinarainforest.etristhelowestlayerfullofanimallifeandreceivestheleastamountoflight.thedark,coolenvironmentundertheleavesbutovertheground.layeristheupperpartsofmostofthetrees.Theemergentlayercontainsasmallnumberofverytalltrees.Thesedifferentpartsofarainforestexisttogethertocreateanecosystemformanyanimals,plantsandhumanbeings.Thispassageismainlyabout .kindsofforest B.whererainforestsareC.factsaboutrainforests D.howmuchoxygenrainforestsmake20.TheAmazonRainforestprovidesuswith percentoftheworld'soxygen.A.twenty B.twenty-five C.fifty D.eighty21.Wherecanweprobablyfindatropicalrainforestaccordingtothepassage?A.InFrance. B.InChina. C.InCanada. D.InBritain.Whichistherightpicturetoshowfourdifferentlevelsoftreesinarainforest?B.C. D.閱讀理解Jasonandhisfatherweregoingtothegrocerystorebycartopickupsomeapples.Ithadbeenanunusualday.Theskywasdarkbuttherewerefewclouds.Astheydroveupthestreet,therestartedtobearumbling(隆隆的)soundheardacrosstheground.Jason'sfatherimmediatelyrealizedthatatornado(龍卷風(fēng))wascoming.HestoppedcarandtoldJasontogetoutimmediately.Jasonandhisfathergotoutofthecarandmadetheirwaytotheclosestbuilding.Bythistimethewindwasblowingharder,anditwastoseeorhear.Debriswasfallingallovertheplace.Jasoncouldn'tseehisdadanymore.Healsorealizedthathewasn'tgettingtothebuildingfastenough.Hewasafraidhebepickedupbythewindandthrownintotheair.Ashemadehiswaytowardsthebuilding,henoticedafieldtohisright.Hecouldseeann(灌溉渠).Inapanic,hescrambled(爬)totheditchandlayflatontheground.Moredebrisandobjectsflewoverhead.Hisheartwasbeatinghard,andhewasnervous.Hehadneverbeeninatornadobefore.Afterawhile,thewindsdieddownandtheloudroaringsoundwasgone.Jasonslowlyliftedhisheadandnervouslylookedaround.Whathesawwasagreatmess.Jasoncouldhardlyrecognizethebuildingsinfrontofhimbecauseofallthedamage.Hestoodupandwithshakylegswalkedtothebuilding.Oncethere,hepushedthedoorandwentinside.Itwasapublicbuildingownedbythecity.Itwasempty,butJasonhearnoisesfurtherinside.Hewalkedintothelargeroomandsawhisdad.Heranacrossroomandgavehimabighug."Jason!Howareyou?I'vebeenworriedsickaboutyou!"saidhisfather."Icouldn'tyouanywhere!"Jasondahfa(松了一口氣)andsatdown.Hedidhaveastorytotell!FromParagraph1,wecangetthe ofthestory.background C.climax(mostexcitingpart) D.endingWhichofthefollowingistherightorderaccordingtothepassage?①Jasonnervouslylookedaroundfromtheirrigationditch.②Jasonranacrosstheroomandgavehisfatherabighug.③Jasongotoutofthecar.④Jasonnoticedafieldtohisright.A.②①③④ B.③④①② C.④①②③ D.③①②④25.Theunderlinedword"Debris"inParagraph2probablymeans partsofthetornado B.a(chǎn)pplepiesC.brokenpieces D.dropofrainThestorytellsusthatwhenweareindanger, .weshouldwaitpatientlyuntilhelpcomesweshouldworkhardtomakeourdreamscometrueweshouldbebraveenoughtochangenatureweshouldbequick-thinkingandbelieveinourselves閱讀理解Haveyoueverboughtsomethingandthenchangedyourmind?ForAlisonJenson,15,thistohappenseveraltimesaweek.Alisonwasashopaholic.Shejustcouldn'tstopshoppingshelovedspecialoffers.Alison'sbedroomisfullofstuff."I'vebeentoeveryshopinBirmingham,Ithink,Alison.Shepicksupsomeearrings.Thelabelsarestillonthem."Thesewerehalfprice,says."I'veneverwonthem."Alison'sproblemwasn'tjustjewellery.Shealsoboughtaofclothes,thoughnotmanyshoes,becausetheywereusuallytooexpensive.Shehasalsolotsofothersmallthings—like20newcoversforherphone.Shehasn'tusedanyofAccordingtoexperts,weallfeelexcitedafterwebuysomethingnew.Forshopaholics,alittledifferent.Soonaftertheybuysomething,theythinkthey'vemadeamistakeandtofeelunhappy.Sotheybuythemselvessomethingelsetofeelhappier.Psychologists(心理學(xué)家)firstdescribedtheproblemsofshopaholicsin1915.However,therewasverylittleresearchonthesubjectuntilrecently.Now,doctorsthinkthousandsofpeoplesufferfromtheproblem,andthesituationisgettingworse.Therearealsoteenageshopaholicsnow,althoughmostyoungpeopledon'thaveenoughmoneytogoshoppingveryregularly.Alisonknewshehadaproblem."Ioftenboughtsomethingeveryday.Usuallyitwassomethingsmall,butIjustneededtobuyit,"shesays."IspentmoneythatIgotformybirthday,andwhenIwasshortofcash,Iborrowedmoneyfromfriendsormyparents.WhenIcouldn'tgoshopping,Ifeltanxious.Thenoneday,myparentsjustlookedatallthestuffinmyroomandsaid,Thisiscrazy!'Iknewtheywereright."Ineededsomebigchangesinmylife.Alisonnowgetshelpwithherproblemandfeelsshehaschanged.Shenolongerthinksshe'sashopaholic."WhenIwanttobuysomethinginashop,Iaskmyselftwoquestions,"she"DoIneedit?CanIaffordit?Theanswertobothquestionsisusually'no',soIwalkIt'sgreat!"Whatdoexpertssayaboutshopaholics?Shopaholicsfeelsadwhentheyareshopping.Shopaholicssoonfeelunhappyaftertheyhaveboughtsomething.C.ShopaholicsfeelmoreexcitedthanotherpeoplewhentheyD.Shoppingistheonlywayshopaholicscanfeelhappy.Theunderlinedword"they"inParagraph5refersto .psychologists B.doctorsC.Alison'sparents D.Alison'sfriendsWhichwordcanbestdescribeAlison'sfeelingattheendofthepassage?Glad. B.Worried.C.Embarrassed.D.Moved.Thebesttitleforthepassageabovemightbe .ShopTillYouDrop! B.ShoppingMakesMeC.You'dBetterShopLess! D.ICanStopShopping三、任務(wù)型閱讀(本題有5小題,每小題1分,共計(jì)5分)HowHowtoGiveaBeforethetalkGetagooideaChooseatopiccarefully.YoucantalkmoreeasilyaboutsomethingyouGoodTalklikeandknowabout.31. It'sbettertosayless.Chooseafewgoodideasandthinkabouthowtocommunicatethemclearlytoyouraudience(聽眾;觀眾).32. BEGINNING:Thinkofaninterestingwaytobegin.MDDLE:Thinkcarefullyaboutthispartofyourtalk.END:Peopleoftenremembertheendingbest,soplanthispartofyourtalkfirst.33. Writeyourmainideasonacard.Ithelpsyourememberyourtalkwhilepracticing.Whenyoucandoiteasilywithoutnotes,thenyou'reready.Whenyoudothetalk34. Talkmoreslowlythanyouusuallydobutspeakmoreloudlythanusual.Makesurethateveryonecanhearyoueasily.35. Talktoyouraudience,nottoyourhandsortothefloor.Lookaroundtheroomatpeople'sfacesandcheckthey'relistening.Don'ttrytosaytoomuchDon'tspeaktoofastMakenotesandpreparePlanyourtalkLookupnotdownFinishontime(每空一詞(110)36.It'snotsafetoleaveababyinacarby (它自己).37.Thebigtreeoverthereisprobablyone (百)years38.Mikeoften (收集)stampsandplaysbasketballinhissparetime.39.TraditionalChinese (藥)hasbeenplayinganimportantroleintreatingCOVID-19.40.Ioftenseanoldmanwith (灰色)hairsweepingtheroadnearmyschool.41.Peoplearoundtheworldcanhardly (避免)buyingproductsmadeinChina.Tohelpmyparentsliveabetterlifeis (確切地)whatIwant.Ifwedon'tprotecttheenvironmentwell,we'llbe (懲罰)sooneror44.YuanLongping,the"FatherofHybridRice",wonmany (獎)forhisriceresearch.45.Ofthethreecities,Ningbo,ourhometown,isthe (生機(jī)勃勃的).(每空一詞(15)mean helpful tooth without wise(每空一詞。mean helpful tooth without wiseDoyouknowthatweareusinguptheEarth'sfreshwaterfasterthanwecanreplaceit?Weneedwatertostayaliveandifwedon'tusewater46.,wewillrunout!Waterisneededforjustabouteverythingwedo.Weneedittofarm,towash,toprovidepower,tocontrolfiresand—mostimportantly—todrink.47.water,wealldie.Soweshouldallsavewaterifwewanttohaveenoughtostayalive.Usinglesswatersavingmoneyandsavingenergy.SavingwaterisEASY.Herearesome tips:Haveshortershowersandonlyhalffillthebath.Turnthetapoffwhileyousoapyourhandsorbrushyour50. .Fixanytapsorhoses(軟管)thatdrip—everydropcounts!六、語法填空(10110)閱讀下面短文,在空白處填入一個適當(dāng)?shù)脑~,或填入括號中所給單詞的正確形式。Susanwastiredofhavingherthreechildrentalkbacktoher.Oneday,sheclimbedintoherkids'treehouse.Itwas51.goodplace,shethought,foramothertogoonstrike(罷工).Shewastiredof52.(drive)themeverywherewithoutthanksandmorethanhershareoftheworkaroundthehouse.Until53.(thing)changed,Susandecidedtostayupinthetree.Susan'sstrikegotherkids'attention,54.course.Butthatwasnotallthathappened.Wordofthefed-upmotherspread.Beforelong,acameracrewfromtelevision'scameintotheiryard.NowpeopleallacrossAmericaweregoingtofind55.whodrovethekids'motherupatree.Asthecamerasworked,thethreekidsstoodwiththeirfathernearthetreehouse.thehost,hadaquestionfor56.(they)."Whatdoyouthinkaboutyourmomonstrikeinthattreehouse?"sheasked."Iamkindofembarrassed,"saidMisty."I'mreallyshocked,"saidJoseph."TIdidnotthinkitwouldgothisfar.Mymomismuch57. (crazy)thanwethought."Racheladded,"Ithinkmomissostrange58.Icanhardlybelieveit."ButSusanhadmadeherpoint.Ifthekids59.(want)herback,theyshouldknowwhattodo.WhentheTVcrewleft,thekidswentintotheirhouse60.(quick)andgotbusy.NotlongafterthatSusanclimbeddownfromthetreeandwentbacktobeingamom.七、書面表達(dá)(共計(jì)20分)61.假如你是李華,上個月你校舉行了“祖國在我心中”的主題活動(themeevent供的信息并結(jié)合你參加這個主題活動的經(jīng)歷,寫一篇英語短文向你校英語報投稿。注意∶⒈短文必須包括導(dǎo)圖的所有要點(diǎn),并適當(dāng)發(fā)揮;⒉文中不得出現(xiàn)真實(shí)的人名和校名;⒊詞數(shù)80-100;標(biāo)題已給出,不計(jì)入總詞數(shù)。MotherlandinMyHeart1.B;2.C;3.B;4.D;5.A;6.A;7.C;8.D;9.C;10.B;7.11.A;12.C;13.A;14.B;15.D16.B17.D18.C19.C20.A21.B22.D23.A24.B25.C26.D27.B28.C29.A30.D31.A;32.D;33.C;34.B;35.E36.itself37.hundred38.collects39.medicine40.gray/grey41.a(chǎn)void42.exactly43.punished44.prizes45.liveliest46.wisely;47.Without;48.means;49.helpful;50.teeth60.quickly61.MotherlandinMyHeartLastmonth,ourschoolheldaneventwiththethemeof"MotherlandinMyHeart"toexpressourloveforourmotherland.Duringtheevent,wehadmanyactivities,includingsingingredsongsandtellingstoriesabouttheRedArmy.Itookpartinthesingingcompetition.Besides,IattendedthespeechcontestinwhichItoldastoryaboutahero,studentsweremovedbymystory.Ithinkthiseventisverymeaningful.I'mproudofmycountry.Ihopeourmotherlandwillbecomemuchgreaterandeverybodycanliveabetterlife.浙江省寧波市2021年中考語文試卷一、家國之思(15分)100小題。下面是一則贊美家鄉(xiāng)的材料,請你閱讀并完成(1)—(3)小題。1200tǎng①juàn②顧寧波,未來屬于寧波。①下面詞語中加點(diǎn)的字和“承載”的“載”字讀音相同的一項(xiàng)是( A.入史冊B.風(fēng)雪途C.千難逢②根據(jù)拼音寫出相應(yīng)的漢字。① ② 下面是愛國詩文朗誦會的開場白,請你補(bǔ)全。愛國,是詩文常見的主題。詩人們歌詠?zhàn)鎳蠛煤由?,表達(dá)對國家命運(yùn)的牽掛,抒發(fā)個人報國之志?!霸旎娚裥悖? 杜甫描繪泰山雄姿贊美壯麗河山(2 化作春泥更護(hù)花,龔自珍以落花自喻,表達(dá)心系國家的一腔深情“報君黃金臺上,(3 抒寫戍邊將士忘身報國之情“了卻君王天下事(4 抒發(fā)辛棄疾力圖收復(fù)失地的壯志(5 范仲《岳陽樓記中拓展古仁人的憂樂觀表達(dá)自己的政治抱負(fù)(6 ,陸游《十一月四日風(fēng)雨大作(其二》中借寫風(fēng)雨夢境抒發(fā)報國之志。(7 堅(jiān)定信念。……愛國情懷成為這些詩文最感動人、最振奮人心的旋律。)①緣: 盈: 二、文學(xué)之約(49分)文學(xué)可以陶冶性情,滋潤心靈。讓我們共赴一場文學(xué)之約。(一)名著閱讀春天》中任選一部,結(jié)合作品內(nèi)容,補(bǔ)充丙同學(xué)的發(fā)言。甲:科普作品中呈現(xiàn)的科學(xué)研究方法閃耀著智慧之光,尤其是“先假設(shè)后求證”的研究方法,同學(xué)們在閱讀中感受最深,讓我們一起來分享。乙:好。我發(fā)現(xiàn),科學(xué)工作者往往循著“提出假設(shè)——用實(shí)驗(yàn)或數(shù)據(jù)分析等推理求證——得出結(jié)論”的路徑進(jìn)行研究.下面,我們請丙同學(xué)說一個具體的例子。: 。甲:說得真好,這樣的研究方法充滿智慧。讓我們在閱讀中獲得真知,讓科學(xué)的光芒照亮自己。(二)文學(xué)類文本閱讀倉鼠愛德華的日記1990—1990(節(jié)選)[英]米里亞姆?伊利亞 以斯拉?伊

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