人教版九年级上册第四单元测试卷(含答案)
(完整word版)人教版九年级英语上册第四单元测试卷及答案
人教版九年级英语上册第四单元测试卷及答案一、根据首字母及句意写出单词（5分)1.The emperor Shen Nong d tea when he was boiling drinking water over an open fire.2.Mom added salt but it still wasn’t s enough.3。
Who i the telephone？4.He walked fast with his head down and n into his teacher.5.He d the men into two teams。
二、单项选择（20分)（）1。
He a machine，it leaning the glass of the windows.A。
found， is used to B.discovers； is used forC。
invented; is used to D.invented; was used for( ） 2。
Scoops are used for things.A.scoops B。
scooped C。
scooping D.scoop（ )3.Can you tell me the train was invented？A。
what B。
who C.when D。
which( ）4。
Do you think shoes with adjustable heels widely in the future?A.will be usedB.are usedC.will useD.are using( ）5.Was a car invented March 4，1876？A。
on B.in C.at D.of（ )6。
Do you know ？A。
were potato chips invented by mistakeB。
was potato chips invented by mistakeC。
(常考题)人教版初中数学九年级数学上册第四单元《圆》测试题(答案解析)
一、选择题1．如图，AB 、AC 是⊙O 的切线，B 、C 为切点，∠A ＝50°，点P 是圆上异于B 、C 的点，则∠BPC 的度数是（ ）A ．65°B ．115°C ．115°或65°D ．130°或65° 2．如图，点A 、B 、C 在⊙O 上，∠ACB ＝54°，则∠ABO 的度数是（ ）A ．54°B ．30°C ．36°D ．60°3．如图，AB 是半圆O 的直径，20BAC =︒∠，则D ∠的度数是（ ）A ．70°B ．100°C ．110°D ．120° 4．已知O 的直径10CD cm ，AB 是O 的弦，AB CD ⊥，垂足为M ，且8AB cm =，则AC 的长为（ ） A ．25 B ．43 C ．25或45 D ．23或43 5．如图，在ABC 中，90C ∠=︒，7AB =，4AC =，以点C 为圆心、CA 为半径的圆交AB 于点D ，求弦AD 的长为（ ）A 433B ．327C 233D ．1676．若圆锥的底面半径为5cm ，侧面积为265cm π，则该圆锥的高是（ ）A ．13cmB ．12cmC ．11cmD ．10cm 7．中国美食讲究色香味美，优雅的摆盘造型也会让美食锦上添花，图①中的摆盘，其形状是扇形的一部分，图②是其几何示意图（阴影部分为摆盘），通过测量得到12AC BD cm ==，C ，D 两点之间的距离为3cm ，圆心角为60︒，则图中摆盘的面积是（ ）A ．212cm πB ．224cm πC ．236cm πD ．248cm π 8．如图，在⊙O 中，AB 是直径，弦AC=5，∠BAC=∠D ．则AB 的长为（ ）A ．5B ．10C ．52D ．102 9．已知O 的半径为4，点P 在O 外，OP 的长可能是（ ）A ．2B ．3C ．4D ．5 10．如图，PA 、PB 、CD 是O 的切线，切点分别是A 、B 、E ，CD 分别交PA 、PB 于C 、D 两点，若60APB ∠=︒，则COD ∠的度数（ ）A ．50°B ．60°C ．70°D ．75° 11．如图，AB 是⊙的直径，DB 、DE 分别切⊙O 于点B 、C ，若∠ACE ＝35°，则∠D 的度数是（ ）A ．65°B ．55°C ．60°D ．70° 12．如图，AB 为圆O 的直径，点C 在圆O 上，若∠OCA =50°，OB =2，则弧BC 的长为（ ）A ．103πB ．59π C ．109π D ．518π 二、填空题13．已知ABC 的周长为30，面积为20，其内角平分线交于点O ，则点O 到边BC 的距离为________．14．如图，AB 、AC 、BD 是O 的切线，P 、C 、D 为切点，如果8AB =，5AC =，则BD 的长为_______．15．如图，点A ，B ，C 在O 上，顺次连接A ，B ，C ，O ．若四边形ABCO 为平行四边形，则AOC ∠=________︒．16．如图，⊙O 是ABC 的外接圆，64A ∠=︒，则OBC ∠=______°．17．如图，点C ，D 是半圈O 的三等分点，直径43AB =．连结AC 交半径OD 于E ，则阴影部分的面积是_______．18．如图，△ABC 中，∠A=60°，若O 为△ABC 的内心，则∠BOC 的度数为______度．19．如图，已知AD 为半圆形O 的直径，点B ，C 在半圆形上，AB BC =，30BAC ∠=︒，8AD =，则AC 的长为________．20．如图，AB 是O 的直径，CD AB ⊥于E ，24CD =，8BE =，则AB =__________．三、解答题21．如图，在矩形ABCD 中，4AB =，6BC =．E 为CD 边上的一个动点（不与C 、D 重合），⊙O 是BCE 的外接圆．（1）若2CE =，⊙O 交AD 于点F 、G ．求FG 的长度；（2）若CE 的长度为m ，⊙O 与AD 的位置关系随着m 的值变化而变化，试探索⊙O 与AD 的位置关系及对应的m 的取值范围．22．如图，已知圆内接四边形ABDC 中，∠BAC ＝60°，AB ＝AC ，AD 为它的对角线． 求证：AD ＝BD+CD ．23．如图，已知在△ABC 中，∠A ＝90°．（1）作∠ABC 的角平分线交AC 于点P ，以点P 为圆心，PA 长为半径作⊙P ，则⊙P 与BC 的位置关系是 ．（2）在（1）的条件下，若AB=3，BC=5，求⊙P 的面积．24．如图，四边形ABCD 为菱形，且120BAD ∠=，以AD 为直径作O ，与CD 交于点P ．请仅用无刻度的直尺按下列要求画图．（保留作图痕迹）（1）在图1中，过点O 作AB 边的平行线OE ；（2）在图2中，过点C 作AB 边上的高CF ．25．如图，在ABC 中，45C ∠=︒，以AB 为直径的O 经过BC 的中点D ． （1）求证：AC 是O 的切线；（2）取AD 的中点E ，连接OE ，延长OE 交AC 于点F ，若2EF =，求O 的半径．26．图①、图②均为 4×4 的正方形网格，线段 AB 、BC 的端点均在格点上，按要求在图①、图②中作图并计算其面积．（1）在图①中画一个四边形 ABCD ，点D 在格点上，使四边形 ABCD 有一组对角相等，并求=四边形ABCD S ．（2）在图②中画一个四边形 ABCE ，点E 在格点上，使四边形 ABCE 有一组对角互补，并求ABCE S =四边形 ．【参考答案】***试卷处理标记，请不要删除一、选择题1．C解析：C【分析】根据切线的性质得到OB ⊥AB ，OC ⊥AC ，求出∠BOC ，分点P 在优弧BC 上、点P 在劣弧BC 上两种情况，根据圆周角定理、圆内接四边形的性质计算即可．【详解】解：∵AB 、AC 是⊙O 的切线，∴OB ⊥AB ，OC ⊥AC ，∴∠OBA ＝90°，∠OCA ＝90°∵∠A ＝50°，∴∠BOC ＝360°﹣90°﹣90°﹣50°＝130°，如图，当点P 在优弧BPC 上时，∠BPC ＝12∠BOC ＝65°， 当点P ′在劣弧BC 上时，∠BP ′C ＝180°﹣65°＝115°，故选：C ．【点睛】本题考查的是切线的性质、圆周角定理、圆内接四边形的性质，掌握圆的切线垂直于经过切点的半径及圆周角定理是解题的关键．2．C解析：C【分析】根据圆周角定理求出∠AOB ，根据等腰三角形的性质求出∠ABO=∠BAO ，根据三角形内角和定理求出即可．【详解】解：∵∠ACB ＝54°，∴圆心角∠AOB ＝2∠ACB ＝108°，∵OB ＝OA ，∴∠ABO ＝∠BAO ＝12（180°﹣∠AOB ）＝36°， 故选：C ．【点睛】本题考查了圆周角定理，圆心角、弧、弦之间的关系，等腰三角形的性质和三角形的内角和定理等知识点，能求出圆心角∠AOB 的度数是解此题的关键． 3．C解析：C【分析】先根据圆周角定理可得90ACB ∠=︒，再根据直角三角形的性质可得70B ∠=︒，然后根据圆内接四边形的性质即可得．【详解】AB 是半圆O 的直径，90ACB ∴∠=︒，20BAC ∠=︒，9070B BAC ∴∠=︒-∠=︒， 又四边形ABCD 是圆O 内接四边形，180110D B ∴∠=︒-∠=︒，故选：C ．【点睛】本题考查了圆周角定理、直角三角形的性质、圆内接四边形的性质，熟练掌握圆周角定理是解题关键．4．C解析：C【分析】连结OA ，由AB CD ⊥，根据垂径定理可以得到4AM =,结合勾股定理可以得到3OM =．在分类讨论，如图，当8CM =和2CM =时，再结合勾股定理即可求出AC ．【详解】连结OA ，∵AB CD ⊥， ∴118422AM BM AB ===⨯=， 在Rt OAM 中，5OA =，∴223OA OM AM -==，当如图时，538CM OC OM =+=+=，在Rt ACM △中，2245AC AM CM =+=，当如图时，532CM OC OM =-=-=，在Rt ACM △中，2225AC AM CM +=故选C ．【点睛】 本题考查垂径定理“垂直于弦的直径平分弦且平分这条弦所对的两条弧”．分类讨论思想也是解决本题的关键．5．B解析：B【分析】过C 作CF ⊥AB 于F ，根据垂径定理得出AD=2AF ，根据勾股定理求BC ，根据三角形面积公式求出CF ，根据勾股定理求出AF 即可．【详解】过C 作CF ⊥AB 于F ，∵CF⊥AB，CF过圆心C，∴AD=2AF．∵△ABC中，∠ACB是直角，AC=4，AB=7，∴由勾股定理得：22227433AB AC-=-=由三角形的面积公式得：AC×BC=AB×CF，即33=7CF，∴433在△AFC中，由勾股定理得：222243316477 AC CF⎛⎫-=-=⎪⎪⎝⎭，∴AD=2AF=327．故选：B．【点睛】本题考查了勾股定理，垂径定理，三角形的面积等知识点的应用，关键是求出AF的长．6．B解析：B【分析】先根据圆锥的侧面展开图为一扇形，这个扇形的弧长等于圆锥底面的周长，扇形的半径等于圆锥的母线长和扇形面积公式得到12•2π•5•OA=65π，可求出OA=13，然后利用勾股定理计算圆锥的高．【详解】解：根据题意得12•2π•5•OA=65π，解得：OA=13，所以圆锥的高2213512．故选：B．【点睛】本题考查了圆锥的计算：圆锥的侧面展开图为一扇形，这个扇形的弧长等于圆锥底面的周长，扇形的半径等于圆锥的母线长．7．C解析：C【分析】首先证明△OCD 是等边三角形，求出OC=OD=CO=3cm ，再根据S 阴影=S 扇形OAB -S 扇形OCD ，求解即可．【详解】解：如图，连结CD ．∵OC=OD ，∠O=60°，∴△OCD 是等边三角形，∴OC=OD=CO=3cm ，∴OA=OC+AC=15cm ，∴OB=OA=15cm ，∴S 阴影=S 扇形OAB -S 扇形OCD =226015603360360ππ⋅⋅⋅⋅-=236cm π． 故选C ．【点睛】本题考查了扇形的面积，等边三角形的性质与判定等知识．扇形的面积=2360n r π︒． 8．C解析：C【分析】根据圆周角定理得出∠D=∠B ，得出△ABC 是等腰直角三角形，进而解答即可．【详解】∵AC=AC ，∴∠D=∠B ，∵∠BAC=∠D ，∴∠B=∠BAC ，∴△ABC 是等腰三角形，∵AB 是直径，∴△ABC 是等腰直角三角形，∵AC=5，∴AB=52故选：C ．【点睛】本题考查了圆周角定理，等腰直角三角形的判定和性质，勾股定理的应用，关键是根据圆周角定理得出∠D=∠B ．9．D解析：D【分析】根据题意可以求得OP 的取值范围，从而可以解答本题．【详解】解：∵O 的半径为4，点P 在⊙O 外，∴OP ＞4，故选：D ．【点睛】本题考查点和圆的位置关系，解答本题的关键是明确题意，求出OP 的取值范围． 10．B解析：B【分析】连接AO ，BO ，OE 由切线的性质可得90PAO PBO ︒∠=∠=，结合已知条件和四边形的内角和为360°可求出AOB 的度数，再由切线长定理即可求出COD 的度数.【详解】如图，连接AO ，BO ，OE ，∵PA 、PB 是O 的切线，∴∠PAO =∠PBO =90∘，∵60APB ∠=︒，∴36029060120AOB ∠=︒-⨯︒-︒=︒，∵PA 、PB 、CD 是⊙O 的切线，∴∠ACO =∠ECO ，∠DBO =∠DEO ，∴∠AOC =∠EOC ，∠EOD =∠BOD ， ∴1602COD COE EOD AOB ∠=∠+∠=∠=︒， 故选B.【点睛】本题考查了切线的性质及切线长定理，解答本题的关键是熟练掌握：从圆外一点引圆的两条切线，它们的切线长相等，圆心和这一点的连线，平分两条切线的夹角.11．D解析：D【分析】连结BC ，则由已知可以求得∠BCD 与∠CBD 的度数，最后由三角形的内角和定理可以得到∠D 的度数．【详解】解：如图，连结BC ，则由弦切角定理可知：∠ABC=∠ACE=35°，∵DB 与⊙O 相切，∴∠CBD=90°-∠ABC=90°-35°=55°，∵AB 是⊙的直径，∴∠ACB=90°，∴∠BCD=180°-∠ACE-∠90°=55°，∴∠D=180°-∠BCD-∠CBD=70°，故选D ．【点睛】本题考查圆的应用，灵活运用直线与圆相切的性质求解是解题关键．12．C解析：C【分析】先根据等腰三角形的性质求出∠A ，再利用圆周角定理求得∠BOC ，最后根据弧长公式求求解即可．【详解】解：∵∠OCA =50°，OA =OC ，∴∠A =50°，∴∠BOC =100°∵BO =2， ∴1002101809BC l ππ⨯==． 故答案为C ．【点睛】 本题主要考查了弧长公式应用以及圆周角定理，根据题意求得∠BOC 是解答本题的关键．二、填空题13．【分析】过O 作OD ⊥BC 于DOE ⊥AB 于EOF ⊥AC 于F 连接OAOBOC 根据三角形的内心和角平分线的性质得出OE=OD=OF 再根据三角形的面积公式求出即可【详解】如图过O 作OD ⊥BC 于DOE ⊥AB 于解析：4 3【分析】过O作OD⊥BC于D，OE⊥AB于E，OF⊥AC于F，连接OA、OB、OC，根据三角形的内心和角平分线的性质得出OE=OD=OF，再根据三角形的面积公式求出即可．【详解】如图，过O作OD⊥BC于D，OE⊥AB于E，OF⊥AC于F，连接OA、OB、OC，∵O是△ABC内角平分线的交点，∴OE=OF=OD，∵△ABC的面积是20，∴S△AOB+S△BOC+S△AOC=20，∴111AB OE BC OD222⨯⨯+⨯⨯+×AC×OF=20，∴(AB+BC+AC)×OD=40，∵△ABC的周长为30，∴AB+BC+AC=30，∴OD=404303=，∴即O到BC的距离是43，故答案为：43．【点睛】本题考查了三角形的内心，角平分线的性质和三角形的面积等知识点，能求出OD=OE=OF 是解此题的关键．14．【分析】由于ABACBD是⊙O的切线则AC=APBP=BD求出BP的长即可求出BD的长【详解】解：∵ACAP为⊙O的切线∴AC=AP∵BPBD为⊙O的切线∴BP=BD∴BD=PB=AB-AP=8-5解析：3【分析】由于AB、AC、BD是⊙O的切线，则AC=AP，BP=BD，求出BP的长即可求出BD的长．【详解】解：∵AC、AP为⊙O的切线，∴AC=AP，∵BP、BD为⊙O的切线，∴BP=BD，∴BD=PB=AB-AP=8-5=3．故答案为：3．【点睛】本题考查了切线长定理，两次运用切线长定理并利用等式的性质是解题的关键．15．120【分析】连接OB先证明四边形ABCD是菱形然后再说明△AOB△OBC 为等边三角形最后根据等边三角形的性质即可解答【详解】解：如图：连接OB∵点在上∴OA=OC=OB∵四边形为平行四边形∴四边形解析：120【分析】连接OB，先证明四边形ABCD是菱形，然后再说明△AOB、△OBC为等边三角形，最后根据等边三角形的性质即可解答．【详解】解：如图：连接OB∵点A，B，C在O上∴OA=OC=OB∵四边形ABCO为平行四边形∴四边形ABCO是菱形∴OA=OC=OB=AB=BC∴△AOB、△OBC为等边三角形∴∠AOB=∠BOC=60°∴∠AOC=120°．故答案为120．【点睛】本题主要考查了圆的性质和等边三角形的性质，根据题意证得△AOB、△OBC为等边三角形是解答本题的关键．16．26【分析】先利用圆周角定理得到∠BOC=2∠A=128°然后根据等腰三角形的性质和三角形内角和定理计算∠OBC的度数【详解】解：∵∠A=64°∴∠BOC=2∠A=128°∵OB=OC∴∠OBC=∠解析：26【分析】先利用圆周角定理得到∠BOC=2∠A=128°，然后根据等腰三角形的性质和三角形内角和定理计算∠OBC的度数．【详解】解：∵∠A=64°，∴∠BOC=2∠A=128°，∵OB=OC，∴∠OBC=∠OCB，∴∠OBC=12（180°-128°）=26°．故答案为26．【点睛】本题考查了圆周角定理：在同圆或等圆中，同弧或等弧所对的圆周角相等，都等于这条弧所对的圆心角的一半．17．【分析】连接OC由点CD是半圆O的三等分点得到根据垂径定理得到OD⊥AC∠DOC=60°求得OE=CE=3根据扇形和三角形的面积公式即可得到结论【详解】解：连接OC∵点CD是半圆O的三等分点∴∴OD解析：33 2π-【分析】连接OC，由点C，D是半圆O的三等分点，得到AD CD CB==，根据垂径定理得到OD⊥AC，∠DOC=60°，求得OE=3，CE=3，根据扇形和三角形的面积公式即可得到结论．【详解】解：连接OC，∵点C，D是半圆O的三等分点，∴AD CD CB ==，∴OD ⊥AC ，∠DOC=60°，∴∠OCE=30°， ∵AB =∴∴CE=3，∴S阴影=S 扇形COD -S △OCE =2601236022ππ⋅⋅-⨯=-．故答案为：22π-． 【点睛】本题考查了扇形的面积的计算，垂径定理，含30°角的直角三角形的性质，正确的识别图形是解题的关键． 18．120【分析】根据三角形的内心是三角形角平分线的交点结合公式求出即可【详解】解：为的内心故答案是：120【点睛】注意此题中的结论：若是内心则熟记公式可简化计算解析：120【分析】 根据三角形的内心是三角形角平分线的交点，结合公式1902BOC A ∠=+∠︒求出即可． 【详解】解：60A ∠=︒，O 为ABC ∆的内心， 1190906012022BOC A ， 故答案是：120．【点睛】注意此题中的结论：若O 是内心，则1902BOC A ∠=+∠︒．熟记公式可简化计算． 19．【分析】连接CD 由已知可以得到∠B=120°所以∠D=60°然后在Rt △ACD 中计算AC 即可【详解】解：如图所示连接CD ∵∴∠B=120°∴∠D=60°∵AD 为直径∴∠ACD=90°∴CD=4∴AC解析：【分析】连接CD ，由已知可以得到∠B=120°，所以∠D=60°，然后在Rt △ACD 中计算AC 即可．【详解】解：如图所示，连接CD∵AB BC =，30BAC ∠=︒∴∠B=120°∴∠D=60°∵AD 为直径∴∠ACD=90°∴CD=4 ∴AC=43【点睛】本题主要考查圆的内接四边形对角性质，掌握直径所对的圆周角是90°和圆的内接四边形对角互补是解题的关键．20．【分析】连接OD 设的半径为r 则OE=r-8再根据勾股定理求出r 最后根据直径和半径的关系即可解答【详解】解：如图：设的半径为r 则OE=r-8∵AB ⊥CD 于E 且CD=24∴DE=CD=12在Rt △ODE解析：26【分析】连接OD ，设O 的半径为r ，则OE=r-8，再根据勾股定理求出r ，最后根据直径和半径的关系即可解答． 【详解】解：如图：设O 的半径为r ，则OE=r-8，∵AB ⊥CD 于E ，且CD=24，∴DE=12CD=12， 在Rt △ODE 中，OD=r ，OE=r-8，DE=12，∴OE 2+DE 2=OD 2，∴（r-8）2+122=r 2，解得r=13∴AB=2r=26．故答案为26．【点睛】本题主要考查了垂径定理，正确作出辅助线、构造出直角三角形是解答本题的关键．三、解答题21．（1）2FG =；（2）当704m <<时，⊙O 与AD 相离；当74m =时，⊙O 与AD 相切；当744m <<时，⊙O 与AD 相交 【分析】（1）过点O 作OM FG ⊥于点M ，延长MO 交BC 于点N ，连接OG ．在Rt BCE ∆中，利用勾股定理求出BE ，再在Rt OMG ∆中求出MG 即可解决问题．（2）如图1中，当O 与AD 相切于点M 时，连接OM 并反向延长交BC 于点N ．求出相切时，m 的值即可判断．【详解】解：（1）解：过点O 作OM FG ⊥于点M ，延长MO 交BC 于点N ，连接OG ，四边形ABCD 是矩形，90C D ∴∠=∠=︒，BE ∴是O 的直径．90C D DMN ∠=∠=∠=︒，∴四边形MNCD 是矩形，MN BC ∴⊥，4MN CD AB ===，BN CN ∴=．OB OE =，ON ∴是BCE ∆的中位线，112ON CE ∴==， 413OM ∴=-=，在Rt BCE ∆中，22210+=BE BC CE1102OG BE ∴==， 在Rt OMG ∆中，221-=MG OG OM ，22FG MG ∴==．（2）解：如图1中，当O 与AD 相切于点M 时，连接OM 并反向延长交BC 于点N ．由（1）易得1122==ON CE m ，142==-OB OM m ，3BN =， 在Rt BON ∆中，222+=ON BN OB ，即22211()3(4)22m m +=-， 解得74m =， ∴当704m <<时，O 与AD 相离， 当74m =时，O 与AD 相切， 当744m <<时，O 与AD 相交． 【点睛】本题考查直线与圆的位置关系，矩形的性质，垂径定理，三角形的外心等知识，解题的关键是灵活运用所学知识解决问题，属于中考常考题型．22．见解析．【分析】连接BC ，证明∠ADB ＝∠ADC ＝60°，在AD 上取点E 、F ，使DE ＝DB 、DF ＝DC ，连接BE 、CF ，证明△BDE 、△CDF 为正三角形，再证明∠AEB ＝∠CFA ＝120°，∠EAB ＝∠FCA ，证明△ABE ≌△CAF ，可得AE ＝CF ，从而可得结论．【详解】解：连接BC ， ∠BAC ＝60°，AB ＝AC ，∴ △ABC 为等边三角形，∴ ∠ABC ＝∠ACB ＝60°，,,AC AC AB AB ==∴ ∠ADC ＝∠ABC 60,=︒ ∠ADB ＝∠ACB 60,=︒在AD 上取点E 、F ，使DE ＝DB 、DF ＝DC ，连接BE 、CF ，∴△BDE 、△CDF 为等边三角形，∴∠DEB ＝∠DFC ＝60°，,,DE BD CF DC ==∴∠AEB ＝∠CFA ＝120°，又∠FAC+∠FCA ＝∠DFC ＝60°、∠FAC+∠EAB ＝∠BAC ＝60°，∴∠EAB ＝∠FCA ，在△ABE 和△CAF 中，∵EAB FCA AEB CFA AB AC ∠=∠⎧⎪∠=∠⎨⎪=⎩∴△ABE ≌△CAF （AAS ），∴AE ＝CF ，∴AD ＝DE+AE ＝BD+FC ＝BD+CD ．【点睛】本题考查的是等边三角形的性质与判定，全等三角形的判定与性质，圆周角定理，掌握以上知识是解题的关键．23．（1）相切；（2）94π 【分析】（1）先利用角平分线的性质得到点P 到BC 的距离等于PA ，然后根据直线与圆的位置关系进行判断．（2）由全等三角形的性质，先求出CD=2，由勾股定理求出AC=4，再利用勾股定理求出PD 的长度即可．【详解】解：（1）作PD ⊥BC ，交BC 于点D ，如图：∵PB 平分∠ABC ，∴点P 到BC 的距离等于PA ，∴PA=PD ，∴BC 为⊙P 的切线．故答案为：相切．（2）由（1）可知，易得△ABP ≌△DBP ，∴BD=AB=3，∴CD=5-3=2，∵在直角△ABC 中，由勾股定理，得 22534AC =-=，设PA PD r ==，∴4PC r =-，在直角△PDC 中，由勾股定理，则()22242r r -=+， 解得：32r =， ∴圆的面积为：223924S r πππ==•=()． 【点睛】 本题考查了圆的定义，勾股定理，角平分线的性质，全等三角形的判定和性质，解题的关键是熟练掌握所学的知识，正确的进行解题．24．（1）见解析；（2）见解析【分析】（1）连接BD 、AC 交于点E ，连接OE ；（2）连接BD ，则点P 和BD 与O 的交点的延长线与AB 的交点即为F 点．【详解】（1）如图所示，∵四边形ABCD 是菱形，∴E 是BD 中点，∵O 是DA 中点，∴//OE AB ；（2）如图所示，∵120BAD ∠=，∴60ADC ∠=︒，∵AD CD =，∴ACD △是等边三角形，∵AD 是直径，∴90APD ∠=︒，即AP DC ⊥，∴P 是CD 中点，通过如图所示找到的点F 是AB 的中点，∵ABC 也是等边三角形，∴CF AB ⊥．【点睛】本题考查作图，解题的关键是要熟悉各种几何的性质，比如：等边三角形的性质，中位线的性质，菱形的性质，圆的性质．25．（1）见解析；（2）22+ 【分析】（1）连接AD ，先由圆周角定理得∠ADB ＝90°，则AD ⊥BC ，再由线段垂直平分线的性质得AB ＝AC ，则∠B ＝∠C ＝45°，求得∠BAC ＝90°，即可得出结论；（2）作EH ⊥OF 交AF 于H ，则EH 是⊙O 的切线，先由垂径定理得OE ⊥AD ，AG ＝DG ，再证出△EFH 是等腰直角三角形，得EH ＝EF ＝2，则FH ＝2EF ＝2，然后由切线长定理得AH ＝EH ＝2，则AF ＝AH ＋FH ＝2＋2，最后由等腰直角三角形的性质得OA ＝AF ＝2＋2即可．【详解】（1）证明：连接AD ，如图所示：∵AB 是⊙O 的直径，∴∠ADB ＝90°，OA 是⊙O 的半径，∴AD ⊥BC ，∵D 是BC 的中点，∴AB ＝AC ，∴∠B ＝∠C ＝45°，∴∠BAC ＝180°−45°−45°＝90°，∴AC ⊥OA ，∴AC 是⊙O 的切线；（2）解：作EH ⊥OF 交AF 于H ，如图所示：则EH 是⊙O 的切线，∵E是AD的中点，∴OE⊥AD，AG＝DG，∵AD⊥BC，∴OF∥BC，∴∠EFH＝∠C＝45°，∵EH⊥OF，∴△EFH是等腰直角三角形，∴EH＝EF2FH2EF＝2，∵AC是⊙O的切线，∴AH＝EH2∴AF＝AH＋FH2＋2，由（1）得：∠BAC＝90°，∴△AOF是等腰直角三角形，∴OA＝AF2＋2，即⊙O2＋2．【点睛】本题考查了切线的判定与性质、圆周角定理、垂径定理、线段垂直平分线的性质、等腰三角形的判定与性质等知识；熟练掌握切线的判定与性质、垂径定理和圆周角定理是解题的关键．26．（1）图见详解，6 ；（2）图见详解，4.5【分析】（1）过C画AB的平行线，过A画BC的平行线，两线交于一点D，根据平行四边形的判定定理可得四边形ABCD是平行四边形，由平行四边形的性质可知∠CBA=∠CDA，然后用用割补法求出面积即可；（2）根据图中正方形网格和∠B的特点，作出∠E与∠B互补，然后用割补法求面积即可．【详解】解：（1）如图，S四边形ABCD=3×4-122⨯×2-222⨯-112⨯=6；（2）如图，S四边形ABCE=3×3-122⨯×2-222⨯-112⨯=92．【点睛】此题主要考查了应用设计作图，首先要理解题意，弄清问题中对所作图形的要求，然后利用割补法求面积．。
人教版九年级英语上册Unit 4 达标测试卷含答案
人教版九年级英语上册Unit 4 达标测试卷第一部分听力I. 听句子,选出句子中所包含的信息(共5小题;每小题1分,满分5分) ( ) 1. A. a speech B. a peach C. a fish ( ) 2. A. take pride in B. take offC. take care of( ) 3. A. a private question B. a silent boyC. a general introduction( ) 4. A. Peter didn’t pass the physics exam.B. Peter passed the physics exam successfully.C. Peter didn’t know about physics at all.( ) 5. A. I often hang out with my friends.B. I don’t like to hang out with my friends.C. I have no time to hang out with my friends.ll. 听句子,选出该句的最佳答语(共5小题;每小题1分,满分5分) ( ) 6. A. Yes, he did. B. He is silent.C. He is outgoing.( ) 7. A. Two hours. B. Three times a week.C. On the playground.( ) 8. A. She is tall and thin. B. She is in the U.S.C. She lives in a big house.( ) 9. A. Excuse me. B. It’s nothing.C. Yes, I’d love to.( ) 10. A. In the gym. B. At 8:00 at night.C. John.l.听对话和问题,选择正确答案(共8小题;每小题1分,满分8分) ( ) 11. What does Mike often do now？( ) 12. What did Mary look like in the past？( ) 13. When is Ben coming？A.This afternoon.B. Tomorrow.C. The day after tomorrow.( ) 14. How long haven’t they seen？A. For two weeks.B. For almost a year.C. For two years.( ) 15. What is Ben good at？A. Swimming.B. Playing football.C. Playing basketball.( ) 16. What class were they in？A. The science class.B. The English class.C. The math class.( ) 17. What was Paula like in the past？A. Outgoing.B. Quiet.C. Strict.( ) 18. What is the woman more interested in now？A. Music.B. History.C. Sports. IV.听短文和问题,选择正确答案(共7小题;每小题1分,满分7分)( ) 19. What did Wang Yani’s father do？A. An artist.B. A doctor.C. A teacher.( ) 20. How old was Wang Yani when she painted lines？A. 2 years old.B. 2. 5 years old.C. 3. 5 years old.( ) 21. How many works did Wang Yani have when she was six？A. 1,000.B. 2,000.C. Over 4,000. ( ) 22. What did Mike use to be like？A. Outgoing.B. Friendly.C. Shy.( ) 23. When did Mike use to get up？A. At 6:45 a.m.B. At 7:15 a.m.C. At 7:45 a.m.( ) 24. How did Mike go to school three years ago？A. By bike.B. By bus.C. On foot.( ) 25. Where did Mike spend most of his time on weekends three years ago？A. In the library.B. In the sports hall.C. In his room.V.听短文填空(共5小题;每小题1分,满分5分)第二部分语言运用VI.完形填空(共15小题;每小题1分,满分15分)Jim used to be a happy boy. He lived in a lovely family with his parents. However, everything changed when he was four years old. That year, his parents 31 __________home to find jobs in the city, leaving him alone at home with his grandmother. He was 32__________ all the time. But luckily, his kind aunt decided to take 33__________ to her home.34 __________his aunt was a very good woman, she had four children of her own to take care of. So his aunt didn’t have too much time to 35 __________him. Hisfour cousins were all older than him. They needed to go to 36 __________every day. So he stayed at home alone and 37 __________by himself. After a long time, he formed a 38__________ and shy kind of personality （性格）. He didn’t know how to 39 __________with others. He got nervous when strangers talked to him.When he was at school, he sat in his own seat all day round without saying any 40__________ . Our teacher found his problem and she worried 41__________ him so much. Then the kind teacher 42__________ helped him learn to speak to others. Besides, our teacher encouraged us to communicate with him as much as possible. His first 43 __________was me. I always remember that Jim’s 44 __________was red when he first spoke to me. It’s so encouraging that he was changing little by little.With the help of us, Jim has become much more outgoing than ever before. We talk about books, sports as well as movies. These things always make him happy. Now I know the importance of 45__________ . It can not only bring warmth, but also make a person become better.( ) 31. A. left B. tookC. stayedD. kept( ) 32. A. active B. relaxedC. busyD. lonely( ) 33. A. her B. himC. meD. us( ) 34. A. Because B. UnlessC. Until DD. Although( ) 35. A. look after B. look forC. look overD. look at( ) 36. A. hospital B. bankC. schoolD. park( ) 37. A. worked B. trainedC. playedD. slept( ) 38. A. silent B. happyC. strictD. funny( ) 39. A. touch B. compareC. agreeD. communicate( ) 40. A. songs B. wordsC. poemsD. articles( ) 41. A. about B. onC. fromD. at( ) 42. A. hardly B. simplyC. activelyD. slowly( ) 43. A. friend B. teacherC. actorD. worker( ) 44. A. mouth B. noseC. neckD. face( ) 45. A. decision B. communicationC. competitionD. knowledgeVII. 短文填空（共10小题；每小题1分，满分10分）阅读下面短文,在空白处填入一个适当的单词（有提示词的，填入所给单词的正确形式）。
人教版化学九年级上册第四单元综合检测卷-(含答案)
第四单元综合检测卷（时间: 60分钟满分: 100分实际用时: ________）可能用到的相对原子质量: H－1C－12N－14O－16 F－19Mg－24S－32 Ca－40Fe－56Cu－64一、选择题: 本大题共15小题, 每小题3分, 共45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. 下列变化属于化学变化的是（）A. 水汽化B. 水结冰C. 水沸腾D. 水分解2. 水是生命之源, 合理利用和保护水资源是我们义不容辞的责任。
下列做法错误的是（）A. 生活污水排入河里, 充分利用水资源B. 生活中要做到一水多用, 节约用水C．农业和园林上采用喷灌、滴灌等新技术, 减少用水量D. 工业上应用新技术、新工艺减少污染物的产生3. 下列化学用语书写正确的是（）A. 3个氮原子: N3B. 1个硫酸根离子: SOC. 5个氯分子: 5Cl2D. 氢氧化铝: AlOH34. 下列实验操作不能达到相应目的的是（）5. “”和“”分别表示两种不同的原子, 则下列图中表示由两种化合物组成的混合物的是（）6. 下列对过滤操作的解释错误的是（ ）A. 滤纸紧贴漏斗内壁——加快过滤速度B. 玻璃棒末端轻靠在三层滤纸处——防止戳破滤纸C. 倾倒液体时烧杯尖嘴紧靠在玻璃棒上——防止冲破滤纸D. 漏斗下端管口紧靠烧杯内壁——防止滤液溅出7．如图是某品牌饮用天然水特征性指标的部分内容, 下列说法正确的是（ ）A. 该天然水中不含任何化学物质B. 饮用水中各元素含量并非越多越好C. 该天然水中含量最多的物质是钙8．D. 该天然水中含有钙、镁、钾、钠等金属单质如图可表示纯净物、单质、化合物、氧化物之间的关系, 若整个大圆圈表示纯净物, 则下列物质按照X 、Y 、Z 的顺序排列正确的是（ ）A. 水银、硫酸铜、冰水共存物B. 红磷、氯酸钾、液氧C. 氢气、氯化镁、氢氧化镁D. 氮气、二氧化氮、氧化汞9．白钨矿的主要成分是钨酸钙（CaWOx ）, 其中钨元素显＋6价, 则x 为（ ）A. 2B. 3C. 4D. 510. 下列有关化学用语中数字“2”的意义的说法错误的是（ ）①2H ②Mg 2＋ ③CO 2 ④C u ＋2 O ⑤O 2－⑥H 2O A. 表示分子个数的是① B. 表示离子所带电荷数的是②⑤C. 表示化合价数值的是④D. 表示1个分子中含有某种原子的个数的是③⑥11. 氢气是最清洁的能源。
人教版九年级化学上册第四单元测试卷(含答案)
人教版九年级化学上册第四单元测试卷（含答案）一、单选题1．推理是一种重要的学习方法，下列推理中正确的是（ ） A ．离子是带电的粒子，则带电的粒子一定是离子 B ．一种分子构成的物质是纯净物，则纯净物一定是由一种分子构成的C ．单质是由一种元素组成的物质，则由一种元素组成的纯净物一定是单质D ．同种元素的原子的质子数一定相同，则质子数相同的粒子一定是同种元素2．莲花清瘟胶囊具有清瘟解毒，宣肺泄热的功效。
其成分中含有一种名为绿原酸的物质，下列有关绿原酸（C 16H 18O 9）的说法正确的是（ ） A ．绿原酸由三个元素组成B ．绿原酸的相对分子质量是354gC ．绿原酸中碳元素的质量分数最大D ．绿原酸由16个碳原子、18个氢原子和9个氧原子构成3．下列对实验现象的描述正确的是（ ） A ．碳在氧气中燃烧发出白光，生成二氧化碳 B ．硫在空气中燃烧，发出蓝紫色火焰，生成刺激性气味的气体C ．细铁丝在空气中剧烈燃烧，火星四射，生成黑色固体D ．氢气在空气中燃烧，发出淡蓝色火焰，罩上干冷烧杯内壁出现水雾4．某酱菜厂要求每100g 酱菜中含钠元素2.3g ，若钠元素全部来自氯化钠，要生产400t 该酱菜，至少需要氯化钠的质量为（ ）A ．23.4tB ．23tC ．9.2tD ．58.5tA ．2K S ——硫酸钾B ．5N +——硝酸根离子C ．42CO ——碳元素的化合价 D ．2N ——氮分子 6．水是生命之源。
下列关于水的净化操作不正确的是（ ）A ．自来水蒸馏B ．活性炭吸附C ．浑浊河水过滤D ．井水煮沸软化7．下列含锰元素的化合物中，锰元素的化合价最高的是（ ）A ．MnO 2B ．MnCl 2C ．K 2MnO 4D ．KMnO 48．下列符号既能表示一种元素，又能表示一种原子，还能表示某种物质的是（ ）A ．HB ．OC ．2SD ．Cu9．下列实验现象的描述中，正确的是（ ）A ．硫在氧气中燃烧产生淡蓝色火焰，生成刺激性气体二氧化硫B ．红磷在空气中燃烧产生浓厚的白雾C ．木炭在氧气中燃烧发出红光D ．氢气在空气中燃烧产生淡蓝色火焰10．逻辑推理是一种重要的化学思维方法，以下推理正确的是（ ）A ．离子是带电的微粒，所以带电的粒子一定是离子B ．由同种分子构成的物质是纯净物，所以纯净物一定是由同种分子构成的C ．化合物是由不同种元素组成的，所以不同种元素组成的纯净物一定是化合物D ．元素的化学性质与原子最外层电子数关系最密切，则最外层电子数相同的原子化学性质一定相似二、填空题11．为探究“水的净化”过程，某实验小组从河水中取水样，并进行如下处理：(1)向水样中加入 可以吸附水中的色素和异味。
人教版九年级语文上册第四单元检测卷及答案(状元成才路)
人教版九年级语文上册第四单元检测卷及答案(状元成才路)人教·九年级语文〔上〕第四单元创优检测卷总分值：120分一、积累与运用。
〔28分〕1．以下加点的字注音有错误的一项为哪一项( )〔3分〕A．汲取(ji) 根深蒂固( di) 持之以恒(h6ng)B．诘难(n6n) 锲而不舍(qie) 味同嚼蜡(ji60)C．滞碍(zhi) 吹毛求疵(c_) 狂妄自大(wang)D．诓骗( kuang) 豁然贯穿(hu6) 袖手旁观(guan)2．以下词语中有四个错误字，请找出来并改正。
〔4分〕怀古伤今宁缺毋乱文采藻饰为民请命豁然贯穿开卷有益格物至知寻章摘句根深缔固轻而义举3．根据句意填人空白处的词语最恰当的一项为哪一项( )〔3分〕(1)是否存在创造力和缺乏创造力的区别呢？(2)不管是研究自然科学，研究人文科学，还是在个人行为上，我们都要保存一个疑心求：态度，要靠理论来____事物的真相。
(3)我们今天对于马克思主义的经典著作，也应该，虚心的态度。
A．充裕发现拿 B．富有发现抱C．富有创造拿 D．充裕创造抱4．以下说法有误的一项为哪一项()(3分)A．“应有格物致知精神〞这个题目明确地表达了作者的观点，即论点。
B．?谈读书?的作者是英国哲学家、作家弗兰西斯·培根。
C．?不求甚解?是一篇驳论，在批驳别人观点的过程中，又阐述了自己的主张。
D.“中国人如今是在开展着‘自欺力’。
〞这句话中的“中国人〞是指全体中国人。
5．阅读下面一段文字，完成后面的题目。
〔4分〕有人说____ ．使文句整齐，___ _使文意流动；___ _使文章增加一泻千里的气势，___ _使文章产生一唱三叹的节奏；___ _，文章自有活泼之趣；___ _，文章会有古雅之风。
以下各项填在横线上，正确的一项为哪一项( )①巧用口语②排比③多用些文言成分④散句⑤对偶句⑥反复A．②③⑤①⑥④ B．⑤③④⑥①②C．②④⑤①⑥③ p．⑤④②⑥①③6．〔2022．湖南娄底〕根据下面提供的情境答复以下问题。
(人教版)初中英语九年级 Unit 4单元测试卷及答案
Unit 4 I used to be afraid of the dark.单元测试02一、听力理解（20小题，每小题1分，共20分）第一节听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳答案。
每段对话读两遍。
1. How did Bob use to go to school?A. Walk.B. Ride a bike.C. Take a bus.2. Who is looking for the dictionary?A. Jack.B. Tom.C. Mary.3. What are the two speakers talking about?A. The weather.B. A radio.C. The time.4. What is Tom’s sister like?A. She is shy.B. She seldom talks in public.C. She is popular with her classmates.5. Who is the girl in a black coat?A. Jane.B. The man’s sister.C. The woman’s sister.第二节听下面几段对话或独白。
每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳答案。
每段对话或独白读两遍。
听下面一段对话，回答第6至第7两个小题。
6. What was the girl like in the past?A. Outgoing.B. Shy.C. Serious.7. What does the boy like doing?A. Painting.B. Playing the piano.C. Playing the guitar.听下面一段对话，回答第8至第9两个小题。
8. Did the man do well in his subjects at school?A. Yes, he did.B. No, he didn’t.C. We don’t know.9. What does the man do?A. He is a singer.B. He is a teacher.C. He is a football player.听下面一段独白，回答第10至第12三个小题。
【最新版】人教版九年级上册化学第四单元测试卷(含答案)
【最新版】人教版九年级上册化学第四单元测试卷（含答案）可能用到的相对原子质量：H－1C－12O－16一、选择题（共9小题，每小题2分，计18分。
每小题只有一个选项是符合题意的）1.水是生命之源，人类的生产生活都离不开水，下列有关认识错误的是（）A.地球上可利用的淡水资源有限B.农业上禁止施用化肥和农药C.用滴灌方法给农作物浇水D.用淘米水浇花可以节约用水2.如图所示为过滤液体的实验装置，下列说法正确的是（）A.过滤可除去所有杂质B.过滤时液面应高于滤纸边缘C.漏斗末端要紧贴在烧杯内壁上D.为加快过滤，可用玻璃棒在漏斗内搅拌3.下列生活中的劳动项目与所涉及的化学知识不相符的是（）4甲烷的说法中正确的是（）A.1个甲烷分子是由1个碳原子和2个氢分子构成的B.甲烷中含有碳和氢气两种物质C.甲烷是由甲烷分子构成的D.甲烷分子是由碳元素和氢元素组成的5.小瑾同学用图表对所学知识进行归纳，其中甲包含乙和丙。
下列错误的是（）6①2H2②Fe3＋③2O④OH－⑤Ca2＋⑥KMnO4A.能表示宏观物质的是①⑥B.③表示两个氧分子C.由②和④构成的物质的化学式为Fe（OH）3D.⑥中锰元素的化合价为＋57.推理是一种重要的化学思维方法，以下推理合理的是（）A.单质中只含有一种元素，但是只含有一种元素的物质不一定是单质B.水通电生成氢气和氧气，所以水分子中含有氢分子和氧分子C.阳离子一定带正电，所以带正电荷的粒子一定是阳离子D.氧化物一定含氧元素，含氧元素的物质一定是氧化物8.没食子酸（化学式为C7H6O5）是世界上最早制得的有机酸，中医常用其治疗流感。
明代李梃的《医学入门》中记载了制取没食子酸的方法。
下列有关没食子酸的叙述正确的是（）A.没食子酸由碳、氢、氧三种元素组成B.没食子酸属于氧化物C.没食子酸中碳、氢、氧元素的质量比为7∶6∶5D.没食子酸中氧元素的质量分数最小9.用电解水实验探究水的组成，下列说法正确的是（）A.b管中产生的气体能使燃着的木条燃烧得更旺B.a管和b管中产生的气体的质量比约为2∶1C.该探究说明水中含有氢分子和氧分子D .实验过程中c 内液面高度不变二、填空及简答题（共6小题，计24分）10.（3分）水是生态之基、生产之要、生命之源。
九年级化学上册第四单元《自然界的水》测试题-人教版(含答案)
九年级化学上册第四单元《自然界的水》测试题-人教版（含答案）一、选择题。
1、下表是青岛空气质量每周公报的部分内容，对表中三个空气质量指标不会产生影响的是（）项目空气污染指数（）空气质量级别空气质量综述总悬浮颗粒物52二氧化硫7Ⅱ良二氧化氮24C．汽车排放的尾气D．用煤和石油产品作燃料2、下列操作与净化水无关的是( )A.过滤B.吸附C.蒸馏D.电解3、关于电解水实验的叙述中氢气表现出的化学性质是( )A.产生的氢气无色、无味B.试管中能收集到氢气，说明氢气难溶于水C.氢气的密度小于空气，收集氢气后试管口应向下放置D.将收集氢气的试管移近火焰，可以听到尖锐的爆鸣声4、下列化学式书写正确的是（）A．氖气Ne2 B．氧化铝AlO C．氢氧化铜CuOH D．硫酸锌ZnSO45、X元素的原子结构示意图为，由X和Y两种元素形成的化合物中，Y元素的化合价为－1，则其化学式可能是()A．XY2B．X2Y C．XY D．XY206、N(NO2)3是一种新型的火箭燃料。
下列关于N(NO2)3的说法正确的是()①相对分子质量为152②氮元素的质量分数为32%③氮元素和氧元素的质量比为4∶6④1个N(NO2)3分子中含有10个原子A．①④B．②③C．①③D．②④7、高锰酸钾受热分解会产生锰酸钾（K2MnO4），锰酸钾中锰元素的化合价是（）A．+7 B．+6 C． +4 D．+18、下列关于水的叙述中错误的是（）A．地球表面约71%被水覆盖，但能供人类生产生活使用的水却较少B．保持水的化学性质的最小粒子是氢原子和氧原子C．水由氢、氧两种元素组成D．江河湖泊的水经沉淀、过滤、消毒、杀菌后，可供人们生活用水9、净化水的方法有：①过滤②加明矾吸附沉降③蒸馏④消毒杀菌。
要将混有泥沙的天然水净化成生活用的自来水，应选用的方法和顺序是( )A.①②③④B.②④①③C.②①④D.①③④10、在电解水的实验中，正确的实验现象是( )A.通电后，两个电极上都有气泡产生；过一段时间后，发现两个玻璃管内气体的体积比约为2∶1B.负、正两极分别有氢气和氧气，而且体积比约为2∶1C.水是由氢、氧两元素组成的D.水发生分解反应，在插入正极的玻璃管内产生的是氢气11、下图中的化学符号表示2个分子的是()12、珍惜水资源，节约用水，人人有责。
人教版九年级全册英语Unit4单元测试卷(Word版,含答案)
人教版九年级全册英语Unit4单元测试卷一、听说应用(本大题共30小题,每小题1分,共30分;A、B、C、D部分为听力理解,E部分为情景对话)A.听句子(本题共5小题,每小题1分,共5分)请根据所听内容,选择符合题意的图画回答问题,并将最佳选项的字母编号填写在题前括号内。
每个句子听两遍。
()1.What did the speaker use to do?()2.How did Maria deal with her shyness?()3.What did she use to hate?()4.What did the scientist do yesterday?()5.What did Lucy use to look like?B.听对话(本题共10小题,每小题1分,共10分)请根据每段对话的内容回答问题,从每小题所给的三个选项中选出一个最佳答案,并将最佳选项的字母编号填写在题前括号内。
每段对话听两遍。
听第一段对话,回答第6小题。
()6.What color is Mary’s hair?A.Red.B.Blonde.C.Black.听第二段对话,回答第7小题。
()7.What did the man use to be?A.A worker.B.A teacher.C.A shop owner.听第三段对话,回答第8小题。
()8.What does Fred think of dancing now?A.He thinks it’s exciting.B.He thinks it’s boring.C.He can’t stand it.听第四段对话,回答第9小题。
()9.What does Jenny look like now?A.Tall and heavy.B.Short and thin.C.Tall and thin.听第五段对话,回答第10小题。
()10.How did the girl use to go to school?A.On foot.B.By bus.C.By bike.听第六段对话,回答第11—12小题。
人教版九年级英语全册Unit 4单元测试卷(含答案)
精品基础教育教学资料，仅供参考，需要可下载使用！Unit 4一、听力(20分)（略）二、单项选择(15分)( )21.—Yan Jiashuo,a girl,has won the prize of International Master of Memory. —Wow,she’s great,isn’t she?A.ten-year-oldB.ten-years -oldC.ten year oldD.ten years old( )22.Wang Yaping and Liu Yang are our in China.We’re proud them.(2018龙东)A.woman astronauts;ofB.women astronauts;ofC.women astronauts;in( )23.It took me almost a whole day to so many emails.A.deal withB.cut inC.cheer forD.run out( )24.The local government used to build a special hospital for the farmers, ?A.does itB.doesn’t itC.did itD.didn’t it( )25.—Is Tina an outgoing girl?—No,she’s kind of .Her face always turns red when she speaks in public.A.shyB.activeC.relaxedD.funny( )26.He has read many books on history,so it’s for him to answer these questions.A.hardB.impossibleC.easyD.serious( )27.The lady dancing as a hobby in her sixties,and she is really good at it now.(2018南京) A.dressed up B.looked upC.took upD.put up( )28.—I will try my best to win in the School Talent Show.—If so,all of us will be you.A.proud ofB.careful withC.strict withD.worried about( )29.I don’t know when the bridge was built ,but it must be very old.A.exactlyB.carefullyC.luckilyD.easily( )30.—Who looked after your sick grandmother in the hospital?—My father did that .He didn’t want anybody else’s help.A.in factB.in personC.in totalD.in disagreement( )31.—China is Asian country with a long history.—So it is.A.aB.anC./D.the( )32.—Excuse me,may I come in?—Not yet.Please wait on your chair your name is called.A.andB.untilC.afterD.since( )33.—I’m really before the competition.—Take it easy.Sure you are the best.A.coolB.seriousC.nervousD.patient( )34.Lucy likes staying at home.She goes traveling during holidays.uallyB.seldomC.alwaysD.often( )35.The boy was from class because he was ill in hospital.A.missedteC.lostD.absent三、完形填空(10分)(2018天津)My name is Damian Costa.I was born in a small village in Italy in 1952.I spent the first few years of my life there before my family 36 to Perth,Australia.We arrived in Australia in the summer of 1957.I went to 37 ,and I had to attend special classes to learn English as all the lessons were taught in English.We did not have much 38 ,so we lived very simply.My parents worked as cleaners.They earned(挣钱)just enough for us to survive(维持生活)and 39 a little money.My father had always wanted to 40 a small restaurant.Finally, 41 ten years of hard work,in June 1967,he managed to save enough and opened our first pizzeria(比萨饼店).42 business was slow at first,it soon got better.I helped out at the pizzeria after school and at weekends.Just two years after we 43 ,my father decided that we needed a full-time waiter.Then,he decided to 44 me the art of making wood-fired pizzas.Today,we have three branches(分店),in Perth,Sydney and Adelaide.My children have45 learned how to make pizzas and they quite enjoy it.I hope to pass on the business to them. ( )36.A.returned B.movedC.pointedD.connected( )37.A.school B.hospitalC.churchD.business( )38.A.paper B.illnessC.healthD.money( )39.A.save B.borrowC.shareD.choose( )40.A.sell B.seeC.openD.leave( )41.A.before B.afterC.duringD.between( )42.A.Because B.IfC.AlthoughD.Whether( )43.A.played B.relaxedC.startedD.stopped( )44.A.like B.teachC.believeD.lend( )45.A.perhaps B.neverC.hardlyD.also四、阅读理解(40分)ALisa was a single mother who lived with her little son.She lost her job two years ago and they lived a very hard life.Being poor was terrible.Her heart was broken every time her son asked,“Can I have some more bread and jam please,Mummy?”One day,when her son asked the same question again,she decided to prepare a big meal for him with the only 6 dollars in her hand.She went to the supermarket,bought some food and cooked at home.Lisa was a shy mother,but she was strong-minded.“It’s time to make a change,”she thought.She used to love writing.In order to make some money,she began to write articles for magazines day and night.Things went better.The local food bank started to provide her with some free vegetables every month.Her son finally had enough to eat.Once he told Lisa that the dishes she made were delicious.Suddenly,an idea came to Lisa’s mind,“Why not share my recipes(食谱)on the Internet?”She did.Many people liked her recipes and she became popular.Soon after that,some reporters interviewed her and asked her to write a book on cooking.When Lisa got the money for the book she wrote,she had a good sleep for the first night during the two years.Now Lisa has a well-paid job and a beautiful house,but she’ll never forget the days when she worked hard for a good life.( )46.Lisa two years ago and lived a very hard life.A.sold vegetablesB.lost her jobC.opened a supermarketD.bought a house( )47.Lisa began to write articles for magazines to .A.make some moneyB.forget the old daysC.interview other peopleD.help the food bank( )48.Lisa shared her on the Internet and became popular.A.booksB.dishesC.recipesD.magazines( )49.Lisa didn’t have a good sleep until .A.she started to cook at homeB.she prepared a big meal for her sonC.she wrote articles for magazinesD.she got the money for the book she wrote( )50.From the passage,we can know that Lisa is .zyB.cruelC.outgoingD.hard-workingB(2018乌鲁木齐) A young girl named Malala,born in 1997 in the northwest of Pakistan,is famous for supporting children and women to get education.In 2012,she was shot and seriously injured when she returned home on the school bus.Luckily,she was sent to the hospital in time and saved.After that,she went back to school and began to strive (奋斗) for children and women to receive education.On October 10,2014,the Nobel Prize for peace was awarded (授予) to Malala.She became the youngest winner in the history of Nobel Prize.However,Malala missed the most important event of being announced to be the winner of the prize.At the very moment,she was taking chemistry lessons in the classroom! After hearing the news,Malala chose to take her history and physics lessons as usual.She said calmly to the reporter,“I’m proud of getting this prize.Although the unforgettable date itself means something to me,it’s more important to finish the rest lessons today.After all,it’s a normal school day.”One year later,Am y Mainzer,an astronomical scientist of NASA,found a new planet.She named it “Malala”.When Amy Mainzer was interviewed by Times,she explained,“I think Malala has set an example for us.She is fearless and sticks to helping children and women get the right of being educated.Nothing can stop her.”Last year,Malala passed the entrance examination of Oxford University through her hard work.Before she finished her high school,she had written a boo k I am Malala.She said,“I hope the readers around the world have chances to read my book.My dream is that more and more people will realize it is extremely difficult for children and women in some areas to get education.Actually,my story is also the story of 61 million children.Every boy and every girl should have the right to go to school.”( )51.How o ld was Malala when she won the Nobel Prize for peace?A.17.B.16.C.15.D.14.( )52.What’s the meaning of the underlined word “astronomical”in Chinese?A.航天的B.天文的C.地理的D.生物的( )53.What’s the name of the new planet?A.Amy Mainzer.B.NASA.C.Oxford.D.Malala.( )54.What is the correct order of the following events?①Malala became a student of Oxford.②A planet was named for Malala.③The Nobel Prize was awarded to Malala.④Malala wrote a book called I am Malala.A.③②①④B.②③①④C.③②④①D.②④①③( )55.Which of the following about Malala is NOT TRUE according to the passage?A.She strives for helping children and women to go to school.B.She is the youngest winner in the history of Nobel Prize.C.She was taking chemistry lessons when she was awarded.D.She wrote a book about herself and 6.1 million children.CBike-sharing has swept across China,with an increasing number of people choosing bike riding instead of driving.The bike that the service company provides has GPS or Bluetooth on it,and those bikes can be easily unlocked with a smart phone and left anywhere in public.Bike-sharing allows people to borrow a bike from one place and return it at another place easily.In some cities,we can see more and more people riding this kind of sharing-bikes.It’s very convenient to use the bikes if you have a smart phone.First,you have to download such an APP on your smart phone.Then what you need to do is to find a nearest bike through the APP,scan the QR code on the bike or connect your phone with the bike over a Bluetooth wireless connection.You will find the bike can be unlocked itself.Then you can enjoy your trip.What’s more,the greatest advantage of bike-sharing is that you can easily find one and never worry about where to park it.The cost of ridingdepends on the time that you spend.Normally,every hour you ride,you need to pay one yuan.It doesn’t cost so much,does it?At the same time,some people park the bikes in their own homes.Besides,some people don’t value the bikes.Now service companies are trying to solve the problem like being stolen.Technology and science have changed our social lifestyles.We have to say bike-sharing brings us more convenience without doubt.And we also hope that people can not only enjoy it but also put it to good use.( )56.From the first paragraph,we know .A.bike-sharing is invented in ChinaB.sharing-bikes are used by some peopleC.most people in cities don’t driveD.sharing-bikes can be borrowed anywhere( )57.The underlined word “scan”in Paragraph 2 probably means in Chinese.A.浏览B.扫描C.审视D.细查( )58.If you want to use a sharing-bike,you must first.A.have a smart phone and download an APPB.download an APP and pay for the tripC.unlock the bike and download an APPD.find a nearest bike and borrow it from anyone( )59.Which of the following is NOT mentioned in this passage?A.Bike-sharing is very cheap.B.Sharing-bikes may be stolen.C.Sharing-bikes are easy to unlock.D.Bike-sharing is a kind of green transport.( )60.The passage probably comes from a .A.cookery bookB.tourist guideC.website news reportD.restaurant menuD阅读短文,根据短文内容从短文后的六个选项中选出能填入空白处的最佳选项。
人教版2020-2021学年九年级英语上册Unit4 I used to be afraid of the dark.单元测试卷(含答案)
Unit4 I used to be afraid of the dark. 单元测试卷九年级全英语考生须知：1.本试卷分试题卷和答题卷两部分。
满分120分，考试时间100分钟。
2.答题前必选在答题卷的密封区内填写学校、班级、姓名、考生号码。
3.所有答案都必须坐在答题卷标定的位置上，务必注意试题序号和答题序号相对应。
评卷人得分听力部分（30分）第一部分听力（共三节，满分30分）I.听对话，选择与对话内容相符的图片。
每段对话读一遍。
1.A. B. C.2.A. B. C.3.A. B. C.4.A. B. C.5.A. B. C.II.听对话，选择正确的答案。
每段对话读两遍。
6. What color is Tina's hair now?A. Black.B. Red.C. Yellow.7.What did Bob use to be like?A. Thin.B. Strong.C. Fat.II.听对话，选择正确的答案。
每段对话读两遍。
8.What was the relationship between the two speakers?A. Classmates.B. Teacher and student.C. Father and daughter.9.What did Jerry use to be like?A. He used to be short.B. He used to be tall.C. He used to be fat.10.Which sport does Jerry like now?A. Basketball.B. V olleyball.C. Football. III.听短文，选择正确答案。
短文读两遍。
11.How many students were there in the speaker's class?A. 50.B. 55.C. 65.12.What did Lily use to be like?A. Outgoing.B. Honest.C. Shy.13.What color is Alfred's hair now?A. Red.B. Colorful.C. Black.14. What did the speaker use to do after school?A. He used to draw pictures.B. He used to play basketball.C. He used to play volleyball.15.How often does the speaker play football?A. Twice a month.B. Twice a week.C. Once a month.笔试部分（90分）一、单项填空（共10小题，计10分）16.My grandma ______ in the countryside, but now she lives in a big city.A. use to liveB. used to liveC. is used to liveD. used to living17.The light in the room wasn't ______ for me to read.A. bright enoughB. enough brightlyC. enough brightD. brightly enough18.The gate of the factory should be wider. It is ______ for two cars to go through.A. too wideB. wide enoughC. not too wideD. not wide enough19.______ we are young, we shouldn't be too afraid of making mistakes.A. ForB. HoweverC. SinceD. Because of20.Don't go out this afternoon. A reporter ______ you.A.has an interview toB.has an interview withC.will have an interview toD.is going to interview21.Luckily, the young reporter got a chance to ______ the famous scientist, and wrote an excellent report.A. introduceB. interviewC. reviewD. imagine22.If you want to meet an e-friend, you should meet him or her in a ______ place．A. popularB. politeC. patientD. public23.-Yang Liwei is ______ of the Chinese nation!-He is very brave and all of us ______ him.A. the pride; take pride ofB. proud; are the pride ofC. proud; take pride inD. the pride; are proud of24.I don't know how to ______ my sad feelings. Can you help me?A. do withB. deal withC. run afterD. go over25.Shanghai is really a ______ city in the east of China.A. crowdB. crowdedC. crowdingD. to crowd二、阅读理解（共两节，每小题2分，共40分）第一节（共15小题，每小题2分，计30分）阅读下列短文，从每题所给的四个选项A,B,C,D中选出最佳选项。
精编人教版英语九年级全一册Unit4单元测试卷(含答案)
九年级人教上册精品测试卷Unit 4满分100分，考试时间90分钟一、单项选择。
（共15分，每小题1分）( )1.He the office. He is having a meeting.A.is absent inB. absent inC. absent fromD.is absent from( )2.Tony used in the village when he was a child.A. to liveB. to livingC. livedD. living( )3.— Mr. Lee is really good at telling jokes. This makes him a popular teacher.— You are right. Students all like teachers.A. kindB. carefulC. humorousD. polite( )4.The child doesn't need any help. He is old enough to himself.A. put onB. wearC. dressD. take care( )5.Great changes in my hometown in the last few years.A. took placeB. will take placeC. have taken placeD. have been taken place( )6.— Hi! Long time no see. — Yes. It's almost three years we met last time.A. whileB. beforeC. sinceD. until( )7.Susan is so brave that she ________ to speak in front of many people.A. forgetsB. daresC. hatesD. fails( )8.— We can't do well in an examination _________ we study hard. — I agree.A. sinceB. ifC. unlessD. because( )9.His wife advised him drinking, but he wouldn't.A. to give upB. gives upC. gave upD. giving up( )10.We often hear some students spoken English in the English corner.A. practicedB. practicingC. practiceD. was practicing( )11.Our teacher often tells us not to be afraid of mistakes.A. doB. doingC. makeD. making ( )12. TV has some benefits, sometimes it has a bad influence.A. Even though; butB. Although; /C. though; butD. even if; but ( )13.________ kind girl she is! She will always help anyone in need.A. WhatB. What aC. HowD. How a ( )14.—Mom, I was the first to reach the top of the mountain.—Good job, Charlie. I'm of you.A. tiredB. proudC. sureD. sickplace where I had wanted to go since years ago.As we were still young, we had a group leader who planned things for us and looked after us. After we got to London, we went to stay with different families. I was lucky that my host family(寄宿家庭) was a white couple who had a daughter about my age. They treated me as a daughter of their family during my stay there. They were interested in me and I learnt a lot of things from them, too.The holiday was filled with activities every day. After breakfast, a local teacher would come to take us in his car. Then we would have classes or go on a sightseeing trip to different places of interest like the Big Ben, the London Bridge, and the Buckingham Palace. We would go back to our own homes after the activities.The holiday was a valuable experience for me. I enjoyed every minute of it. Yet, time really flew fast. Three weeks later, we had to leave “homes” for Hong Kong.( )26. In the “homestay” program, a visitor can.A. learn more about holidaysB. understand his culture betterC. improve the language abilityD. take part in foreign meetings( )27. The writer had wanted to visit London since .A. last monthB. years agoC. the special meetingD. her stay abroad( )28.The group leader should .A. make plans for the familyB. take care of the studentsC. stay with different familiesD. rent rooms to the students( )29.The writer's host family .A. was very kind to herB. went sightseeing with herC. had two white daughtersD. was interested in her activities( )30.From the passage, we know that the writer in London.A. wished to stay a little longerB. spent three weeks in her homeC. had classes in many interesting placesD. helped the teacher take the students in a carBAngela Chang(张韶涵) didn’t know it would be so hard to turn singing into a career(失业). She went to many different record companies. But she was always turned down for looking too young and small.“I’d never had such difficulties before,” Chang said. But Chang’s talent was finally accepted in 2002. When she got a piece of work, she cried.She soon became a star. Her first album Over the Rainbow sold very well. She won many awards.“ You wouldn’t believe such a beautiful voice could come from such a small body,” said one musician after hearing Chang sing. “She has a special voice. You can’t forget it.”But the 25-year-old girl has other talents too. Chang is also an actress. She has played a role in the popular TV plays,My MVP Valentine and At Dolphin Bay. Many people remember her common-girl parts in the plays. But acting is difficult. Chang once acted so badly that she was nearly fired(解雇). Another time it took her 27 tries to get a scene(一场戏) right.“I cried when I got back home,” Chang said. “But I knew that I wouldn’t always fail. You onlyfail when you give up.”Now with four albums behind her - Over the Rainbow, Aurora, Pandora and Flower in the Wonderland, it’s clear that Chang and music were made for each other. As she sings in one song, “I have a pair of invisible wings(隐形的翅膀). They fly me to the skies and give me hope.”31.The phrase “turned down” in the first paragraph means “________________”.A.承认B.拒绝C.开除D.雇用32.Many record companies refused to co-operate(合作) with her because ______________.A.she looks very commonB.she is too youngC.she doesn’t sing very wellD.she looks young and small33.Which of the following is NOT right?A.She won many awards for the album Over the Rainbow.B.She has made four films.C.One musician spoke highly of(赞扬) her.D.She is not only a singer but an actress.34.Although acting is difficult for her, she never gives up because ______________.A.she is strong-mindedB.people like her filmsC.she is interested in actingD.she acted in the popular TV plays35.Which do you think is the best title of the passage?A.The Small Girl.B.Four AlbumsC.I have a Pair of Invisible Wings.D.A Poor Actress.CI used to hate my mother because she worked a lot and didn't spend much time with me. Then one Friday morning I took part in a three-day self-help program for teenagers. Whether you believe it or not, that weekend changed my life.About 100 other teenagers were there. During the first two days I met a lot of great people. I was glad because I made so many friends there.On Sunday, the leader did an interesting exercise called "Chocolate or Toys". He asked a girl which she liked better, chocolate or toys. She chose chocolate. Then he asked her to choose again between chocolate and chocolate. Of course, she didn't have a choice.This exercise told us that sometimes we don't have a choice in life, and that sometimes we have to accept something, rather than complaining(抱怨).A girl stood up and started talking about her mom who was a drug addict (吸毒者) and how much she hated her mother."I want a new mom," she cried."Unluckily, you can't have one," the leader replied."You have to accept the mother that you have."This hit me hard. I realized that, for better or worse, my mom was my mom. I couldn't choose another mom, but I could try to make the best of the situation.36. The writer used to hate his mother because .A. she didn't care for himB. she had no time to be with himC. she was a drug addictD. she was too strict with him37. The self-help program for teenagers lastedA. a weekB. two daysC. three daysD. only one day38. The writer started to change his thinking .A. during the first two days of the programB. after the exercise named "Chocolate or Toys"C. as soon as he came to the programD. after he left the program some time39. From the end of the passage, we can know that .A. the writer used to love his mom for yearsB. the writer's mom is a very bad personC. the writer's mom loves her son very muchD. the writer will try to get along with his mother40. What is the main idea of this passage?A. We can make choices as we like.B. Everyone should take part in a self-help program.C. Chocolate can influence one's attitude(态度) toward things.D. We should try to accept things instead of complaining about them.四、单词拼写。
2022年人教版九年级化学上册第四单元 自然界的水单元测试试题(含答案详解版)
九年级化学上册第四单元自然界的水单元测试考试时间：90分钟；命题人：化学教研组考生注意：1、本卷分第I卷（选择题）和第Ⅱ卷（非选择题）两部分，满分100分，考试时间90分钟2、答卷前，考生务必用0.5毫米黑色签字笔将自己的姓名、班级填写在试卷规定位置上3、答案必须写在试卷各个题目指定区域内相应的位置，如需改动，先划掉原来的答案，然后再写上新的答案；不准使用涂改液、胶带纸、修正带，不按以上要求作答的答案无效。
第I卷（选择题 30分）一、单选题（10小题，每小题3分，共计30分）1、下图所示实验操作及现象可以得到相应结论的是甲中气体被点燃，火焰呈淡蓝色；乙中气体使木条燃烧更旺甲中木条无明显变化，乙中木条熄灭甲中有极少量气泡；乙中有大量气泡甲中溶液无明显现象；乙中溶液变为红色A．A B．B C．C D．D2、某同学制作的试剂标签如下。
其中化学式书写不正确．．．的是A．B．C．D．3、高钙奶是一种营养强化食品，这里的“钙”是指A．单质B．元素C．分子D．原子4、对物质进行分类是学习化学的一种方法。
下列各组物质中按氧化物、化合物和混合物顺序排列的是A．A B．B C．C D．D5、地壳中含量最多的金属元素和非金属元素组成化合物的化学式是A．SiO2B．Al2O3C．AlCl3D．Fe2O36、下列化学用语表达正确的是A．Fe2+——亚铁离子B．3O2——6个氧原子C．He——一个氦元素D．——铝原子7、下列化学符号所表示的意义错误的是A．Fe2+：可以表示一个铁离子B．O2：可以表示一个氧分子C．Ne：可以表示氖气这种物质D．2H2O：可以表示2个水分子8、下列属于氧化物的是A．KMnO4B．HCl C．CO2D．C2H5OH9、下列化学用语的表述，正确的是A．2O——2个氧分子B．K+——钾元素显+1价C．NaCl——氯化钠D．2CO——2个一氧化碳10、化学用语是化学学习的重要组成部分，写列队化学用语的说明中，正确的是SO ：表示两个硫酸根离子带两个单位的负电荷A．224B．NO2：表示二氧化氮由一个原子和两个氧原子构成C．2H：表示两个氢元素D．+2M gO：表示氧化镁中镁元素的化合价为+2价第Ⅱ卷（非选择题 70分）二、填空题（5小题，每小题4分，共计20分）1、青龙山农场学校篮球挑战赛中运动员穿的篮球鞋在生产中所用的胶水含有正己烷(C6H14)，请回答下列问题：（1）正己烷的相对分子质量是_________。
人教版九年级语文上册第四单元(单元测试解析版)
第四单元综合测试卷（满分：120分时间：120分钟）班级：姓名：一、积累与运用(15分)（1-5题每题1分，第5题每小题2分）1.《行路难》通过动作细节描写刻画，形象揭示了作者内心的苦闷抑郁的句子：“，”。
2.《酬乐天扬州初逢席上见赠》运用典故表达诗人内心无比心酸.流露出老友四散，恍如隔世之情的诗句是: “，”。
3.苏轼的《水调歌头·明月几时有》表达豁达胸襟的内心独白，表现了作者感悟人生哲理的句子：“，”。
4.《月夜忆舍弟》诗中作者触景伤怀，思念家乡的句子是：“，”。
5.《长沙过贾谊宅》诗中渲染出贾谊故宅萧条冷落之景,抒写出寂寞、怅惘、痛苦、无奈之情的诗句是: “，”。
【答案】1.停杯投箸不能食，拔剑四顾心茫然。
2.怀旧空吟闻笛赋，到乡翻似烂柯人。
3.人有悲欢离合，月有阴晴圆缺，此事古难全。
4.露从今夜白，月是故乡明。
5.秋草独寻人去后，寒林空见日斜时。
【解析】默写题作答时，一是要透彻理解诗文的内容；二是要认真审题，找出符合题意的诗文句子；三是答题内容要准确，做到不添字、不漏字、不写错字。
注意“箸”“赋”“柯”等字的写法。
6.阅读下面的一段文字，完成下列小题古人有云□“，。
”这句话告诉我们，人生之路不可能一帆风顺，而是充满挑战和困难。
但我们应该保持坚定的信念和不屈不挠的勇气，面对困难和挫折时要勇于挑战、积极应对。
“三军可夺帅也，匹夫不可夺志也□”【】身处何种困境，我们【】应坚守信念，不断努力，为实现梦想而拼搏。
只有心怀大志，方能勇往直前，取得辉huáng（）成就。
让我们志存高远，砥．砺（）前行，共创美好未来！（1）下面的书法作品的内容是作者在横线上引用的古人的话，你认为作者引用的是下面的第（）句，它是（）书。
①天行健，君子以自强不息②地势坤，君子以厚德载物（2）按拼音给括号内填上汉字并给加点字注音。
辉huáng（）砥．砺（）（3）选文“□”应填入的标点是（）A.冒号逗号B.不填标点句号C.冒号句号D.不填标点逗号（4）“【】”内应填的关联词是（）A.只有才B.只要就C.因为所以D.无论都（5）“我们应该保持坚定的信念和不屈不挠的勇气”这句话的主干是【答案】（1）①隶（2）煌 dǐ（3）C（4）D（5）我们应该保持信念和勇气【解析】（1）文段的主题是励志而不是修德，所以横线上引用的应该是①句。
人教版九年级化学上册第四单元《自然界的水》测试-人教版(含答案)
人教版九年级化学上册第四单元《自然界的水》测试-人教版（含答案）一、选择题，1、水是一切生命体生存所必需的物质，我们必须爱护水资源。
下列有关爱护水资源的说法错误的是（）A．爱护水资源既要节约用水，又要防治水体污染B．水体污染的来源主要是生活污染C．农业园林浇灌改大水漫灌为喷灌、滴灌D．城镇污水处理达到污染排放标准后再排放2、自来水厂净水过程示意图如图，下列说法正确的是（）A．明矾是一种常用的絮凝剂B．过滤可除去水中杂质离子C．活性炭可长期使用无需更换D．经该净水过程得到的是纯水3、通电使水分解，在一个电极上得到20mL气体，则另一个电极上得到的气体体积大约是（）A．10mL B．30mL C．40mL D．10mL或40mL4、下列符号既能表示某种元素,又能表示该元素的一个原子,还能表示一种物质的是()A.SO2B.H2C.OD.Hg5、在化学王国里,数字被赋予了丰富的内涵。
下列化学用语中有关数字“2”的说法正确的是 ()①2H②2NH3③SO2④O2⑤Mg2+⑥2OH-⑦H2OA.表示离子个数的是⑤⑥B.表示离子所带电荷数的是④⑤C.表示分子中原子个数的是③④⑦D.表示分子个数的是①②6、下列物质中相对分子质量最大的是()A．Fe3O4B．C2H5OH C．CO(NH2)2 D．Cu2(OH)2CO37、新型净水剂高铁酸钠（Na2FeO4）中，铁元素的化合价是（）A.＋2B.＋3C.＋6D.＋88、走绿色发展道路，既要金山银山又要绿水青山。
下列关于环境方面知识正确的是（）A．空气污染指数的项目主要有二氧化硫、二氧化碳、氮的氧化物等污染物B．水体污染的来源主要有酸碱污染、重金属污染和毒气污染C．臭氧（O3）主要分布在距地面10～50km的高空，它能吸收大部分紫外线，保护地球生物D．倡导绿色出行，节能减排。
减排是指减少大气污染气的排放9、自来水厂净水过程示意图如图，有关说法正确的是（）A．加絮凝剂是为了消毒杀菌B．过滤可以降低水的硬度C．活性炭主要起到吸附作用D．配水泵出来的水是纯净物10、证据推理是化学学科的核心素养，下列证据得出的结论正确的是（）选项证据结论A 燃着的木条伸入呼出气体中，木条熄灭呼出气体中二氧化碳含量高B 水通电得到氢气和氧气水是由两个氢原子、一个氧两种原子构成C 10mL苯与10mL冰醋酸混合体积大于20mL分子间有间隔D 氧化铜加入过氧化氢溶液中，能加快氧化铜是过氧化氢分解催化剂反应速率11、在一氧化碳中，碳元素与氧元素的质量比是（）A．1∶1 B．1∶2 C．3∶4 D．3∶8 12、2020年“中国水周”的主题是：坚持节水优先，建设幸福河湖。
人教版九年级英语上册UNIT 4 水平测试卷含答案
人教版九年级英语上册UNIT 4 水平测试卷第一部分(听力共30分)Ⅰ. 听选答案(共15小题，计20分)第一节: 听下面10段对话，每段对话后有一个问题，读两遍。
请根据每段对话的内容和后面的问题，从所给的三个选项中选出最恰当的一项。
(共10小题，计10分)()1. A. A writer. B. An actor. C. A singer.()2. A. To the bank. B. To the library. C. To the hospital.()3. A. Once a month. B. Twice a week. C. Once a week.()4. A. She had a picnic. B. She watched a show.C. She had an exam.()5. A. By car. B. By bus. C. By bike.()6. A. Teacher and student. B. Father and daughter.C. Mother and son.()7. A. At 7: 15. B. At 7: 00. C. At 6: 45.()8. A. It's fine. B. It's hot. C. It's cold.()9. A. Outgoing B. Quiet. C. Serious.()10. A. 42. B. 22. C. 20.第二节: 听下面两段对话，每段对话后有几道小题，请根据对话的内容，从题目所给的三个选项中选出问题的正确答案。
每段对话读两遍。
(共5小题，计10分)听第11段对话，回答第11、12小题。
()11. Where does Tom have breakfast now?A. At home.B. In the car.C. In the school restaurant.()12. How did Tom use to go to school?A. By bike.B. By car.C. By school bus.听第12段对话，回答第13至15小题。
人教版九年级英语上册UNIT 4 综合测试卷含答案
人教版九年级英语上册UNIT 4 综合测试卷第一部分听力(四大题，20分)一、短对话理解(共5小题；每小题1分，满分5分)1. What did Mike use to be afraid of?A. B. C.2. What's Linda doing now?A. B. C.3. What does the man do?A. A TV host.B. A reporter.C. A bank clerk.4. What did Frank use to be like?A. Funny and outgoing.B. Shy and serious.C. Serious and funny.5. What is impossible for Jim now?A. Playing cards with his friends.B. Watching TV with his friends.C. Hanging out with his friends.二、长对话理解(共5小题；每小题1分，满分5分)听下面一段对话，回答第6、7小题。
6. When does the conversation take place?A. In the morning.B. In the afternoon.C. In the evening.7. How long has Maria kept the habit?A. For three years.B. For four years.C. For five years.听下面一段对话，回答第8至10小题。
8. What are the speakers doing now?A. Drinking coffee.B. Buying coffee.C. Washing coffee cups.9. How many cups of coffee does the man drink every day?A. Three.B. Four.C. Five.10. What does the woman advise the man to do?A. To see a doctor.B. To drink more water.C. To eat some snacks.三、短文理解(共5小题；每小题1分，满分5分)11. What did Vera use to be like?A. Shy.B. Lazy.C. Careless.12. What changed Vera's life?A. A TV program.B. A school competition.C. A sports meeting.13. Who encouraged Vera at first?A. Her mother.B. Her friend.C. Her teacher.14. What did the teacher teach Vera?A. How to pronounce words correctly.B. How to improve her grammar quickly.C. How to remember sentences creatively.15. How did Vera's classmates feel after knowing the result?A. Surprised.B. Proud.C. Sad.四、信息转换(共5小题；每小题1分，满分5分)(续表)第二部分语言知识运用(三大题，35分)五、单项填空(共10小题；每小题1分，满分10分)21. —A lot of foreigners come to visit Huangshan every year.—That's true. It is the ____ of our Anhui.A. speedB. recordC. forceD. pride22. What a good plan this is! We must work together, or the plan will ____.A. failB. burnC. dropD. beat23. —We shouldn't pay much attention to Jane's problem. It's ____.—You're right. And I think she would like to solve it by herself.A. boringB. privateC. excitingD. useful24. —How do you like the high-speed train in China, Alan?—Oh, it runs very fast and it is ____ late.A. almostB. insteadC. seldomD. pretty25. Yuan Longping is ____ regarded as one of the greatest scientists in the world.A. exactlyB. patientlyC. hardlyD. generally26. Bill used to ____ much time playing computer games, but now he is used to ____English novels in his free time.A. spend; readB. spend; readingC. spending; readD. spending; reading27. —Our country has been developing fast in recent years.—You are right. I believe every Chinese is ____ that.A. famous forB. sure aboutC. proud ofD. ready to28. —Why were you absent ____ the party last week?—Because I had a bad cold.A. aboutB. withC. overD. from29. —Oh, there are so many old newspapers. How are you going to ____ them?—I'm going to sell them.A. deal withB. take afterC. think ofD. worry about30. —Visiting the farm on the weekend is a good idea.—____. We will learn a lot on the farm.A. Thank youB. I agreeC. No wayD. Never mind六、完形填空(共20小题；每小题1分，满分20分)AWhen I was young, I practiced ballet at a dancing school. Later, the teacher left. My class had a hard __31__ making any progress until Ms Smith came.Though we were just a group of girls who spent some free time learning ballet, Ms Smith trained us strictly as if we would __32__ to be ballet dancers. When we did the splits(劈叉), Ms Smith usually stood behind us and __33__ our backs. In that way, we could bend __34__. Ms Smith trained us like that for half a year. We all felt__35__ to have Ms Smith's classes then.In the end, the parents found out how Ms Smith taught us. They thought it was unnecessary for __36__ to be so strict. Their repeated __37__ for a new teacher drove Ms Smith away. With no teacher for my class, I practiced ballet in another class. To my surprise, the children in the class were unable to dance as well as me, even though they had practiced ballet for years. My dancing skills amazed the whole class, including the teacher. I __38__ that my performance had improved a lot after I took Ms Smith's classes and that __39__ work was quite necessary for success.I have not heard from Ms Smith till now, but the __40__ she left on me stays. I hope to be able to tell her, “Thank you, Ms Smith！”31. A. life B. timeC. wishD. test32. A. grow up B. pick upC. wake upD. take up33. A. failed B. wantedC. calledD. pushed34. A. slower B. fasterC. lowerD. higher35. A. wonderful B. terribleC. peacefulD. necessary36. A. him B. meC. youD. her37. A. requests B. interviewsC. decisionsD. conditions38. A. regarded B. realizedC. remindedD. reported39. A. long B. cuteC. proudD. hard40. A. step B. windC. markD. lineBKatie and Alice were twins. They were so alike that few people could tell them apart. They were best friends, but their __41__ were not exactly the same. Alice preferred sports while Katie preferred foreign languages and she was good at French.Once Katie __42__ going to a summer camp in France. However, Alice wasn't __43__ it, so she refused. Katie was a little unhappy.Two months later, Katie __44__. Alice rushed to the airport to pick her up. To Alice's surprise, Katie looked completely __45__. When Alice asked Katie about France, Katie didn't talk much. This made Alice quite angry because they used to tell each other almost everything. Over the weeks, the sisters communicated even __46__. It seemed that Katie was always busy talking with her French friends on the Internet and Alice was angry about that.Soon it was their birthday. The twins used to talk all night long before the big __47__. That night, Katie came into Alice's bedroom, saying, “I'm sorry that I haven't spoken to you much __48__. For a while, I thought my French friends were more exciting than my old friends. But I was __49__. You're my sister, and you will always be my best friend. ”Alice said, “I'm sorry, too. It's __50__ for twins to make new friends. I shouldn't have been angry with you. ”41. A. habits B. interestsC. secretsD. courses42. A. suggested B. practicedC. daredD. remembered43. A. strict with B. sure aboutC. proud ofD. interested in44. A. agreed B. changedC. returnedD. passed45. A. normal B. differentC. famousD. healthy46. A. less B. betterC. moreD. worse47. A. sky B. wayC. dayD. job48. A. certainly B. probablyC. suddenlyD. recently49. A. clever B. helpfulC. wrongD. happy50. A. polite B. naturalC. privateD. serious七、补全对话(有两项多余)(共5小题；每小题1分，满分5分)A: Hello, Sam! Congratulations to you for winning first prize in the speech contest! B: 51. ________A: I remember you used to be shy when you talked to others. How did you become interested in giving a speech?B: 52. ________ I thought practicing the speech could make me confident, so I started doing it.A: 53. ________B: Practice makes perfect. I had practiced it hundreds of times.A: 54. ________B: At first I could hardly believe I was the winner. Then I got excited and couldn't help crying.A: Did practicing the speech change you?B: Yes, it changed me a lot. 55. ________A: You're so great!第三部分阅读(共两节，40分)八、阅读理解(共20小题；每小题2分，满分40分)第一节:ADid you use to be weak and unhealthy? If so, what did you do to make yourself healthy again? Could you please give me some advice?JaneEricAlice56. How long did it take Jane to become healthier?A. About two weeks.B. About six months.C. More than a year.D. About two years.57. What does the underlined word “harmful” probably mean?A. Bad.B. Good.C. Helpful.D. Friendly.58. What made Alice feel weak and have a stomachache?A. Staying up too late.B. Doing little sport.C. Eating too many snacks.D. Playing computer games.BWith time, everything changes. So do magazine covers. The following are three of the most popular magazines in the US. Let's take a look at how their covers have changed over the past centuries.▲TimeTime is best known for its red border(镶边). The cover photos and designs are almost the same for ages—a photo of a famous person with bold(粗体的)text to draw your attention. The cover continues to feature(以……为特色) America's icons year after year—from presidents to pop stars.▲National GeographicBeing around for more than a century, the design of National Geographic, especially the cover, has gone through many changes. The magazine is perhaps best-known for its amazing photography—yet it wasn't shaped until the 1960s. It has also done a great job designing its famous yellow border.▲SeventeenThe Seventeen logo (标识) has stayed the same, but almost everything else about the design has changed. There was a time when the cover was simple，and then things just got more and more cluttered(杂乱的). The magazine cover's job is to sell the magazine—it has to stand out from the others. So the design starts to get louder and louder. But honestly, you might get a bit of a headache when you look at the Seventeen covers for too long.59. Which of the following is NOT true about National Geographic?A. It has a history of more than a hundred years.B. It had amazing photography in the 1950s.C. It is famous for its yellow border.D. The cover has gone through many changes.60. According to the last paragraph, ____ may make a magazine sell well.A. special coversB. good writersC. fantastic adsD. beautiful songs61. What does the writer think the covers of Seventeen?A. It became comfortable.B. It became pleasant.C. It became cluttered.D. It became modern.62. What could be the best title for this passage?A. The change of magazine colorsB. The change of magazine bordersC. The change of magazine logosD. The change of magazine coversCLi Wei is in the ninth grade. “I used to be able to see the blackboard clearly，” he says, “but now I have to wear thick glasses. ” Li Wei is not the only student who wears glasses in his class. According to a survey, over 58% of the Chinese middle school students have poor eyesight (视力). Why are there so many middle school students having the problem? The following chart shows some of the reasons.Luckily, some cities have started doing something. They request that the time spent in teaching with electronic equipment(电子设备) should be no more than 30% of the whole teaching time and that parents should guide their children to spend less time on electronic equipment.They also request regular (有规律的) breaks for students in daytime and enoughsleeping time at night. For middle school students, the time spent on the outdoor activities should be no less than one hour a day, and the sleeping time for each day should be at least nine hours. Besides, parents should control their children's intake of high sugar, oil and salt from unhealthy food.There are many things students can do to protect their eyes in their daily life. For example, they should never read in the sun. Also, it's necessary for them to sit in a right position when they do homework.63. Which of the following can be put into __▲__？A. Too much air pollutionB. Too much unhealthy foodC. Not enough knowledge about sleepD. Not enough reading time64. What does the last paragraph mainly tell us?A. How students keep healthy.B. Why students need to protect their eyes.C. What students can do to protect their eyes.D. How people can help students keep healthy.65. In which part of a newspaper can we read the text?A. Health.B. Nature.C. Science.D. Exercise.DLong, long ago, there lived an unhappy king. No matter how many times he told his people to do something, they would never listen to him. So he decided to ask an old wizard, Henry, for help. Henry thought of thousands of spells (咒语), and even made some magic water, but nothing worked.A young man, who was on a long journey, heard about the king's problem. He said he knew the solution. He gave the king two small pieces of paper, with words on them. “These are the spells. Use the first before saying what you want someone to do, and use the second when he or she has done it，” he said.Apolonio was passing by, carrying a large tur key. The king said to him, “Please,Apolonio, give me your turkey. I want to have a look at it. ”Apolonio, and everyone else couldn't believe their ears. They had never heard the king say “please” before. After the king got the turkey, he said, “Thank you, Apolonio. ” Apolonio shocked.It really worked! The king gave lots of gold to the young man, but he refused. The young man then decided to continue his journey.Before he left, Henry asked him to share his spells. The young man told him, “I got my spells from school as a child. My teacher kept repeating that with good manners you could get anything. And he was right. Your king only needed good manners and some politeness to get just what he wanted. ”66. What was the king's problem?A. Nobody listened to him.B. Nobody understood his magic.C. He didn't know how to deal with Henry.D. He didn't know how to use the young man's spells.67. How did the people feel after they heard the king's words?68. Who taught the young man his magic?A. Henry.B. Apolonio.C. His parents.D. His teacher.69. What did the king learn from the young man?A. To be thankful to others.B. To be polite to others.C. To be strict with himself.D. To be careful with work.EBetty |June 30，2024Hey! What do you think are the biggest changes in your life in the first half of 2024? Feel free to comment(评论) below!Grace |July 7，2024I used to feel lonely, especially during the quarantine(隔离期) when I had a serious illness. I couldn't see my friends and my families. However, things are different now because I have a newborn sister this year! She is so lovely. I really enjoy helping my mom take care of her.Alfred |July 4，2024I took up cooking this March. It's not as boring as I used to think. And it's not difficult to learn. Now I can make a good meal for my family in one hour all by myself.Jean |July 1，2024I used to stay at home most of the time, but now I love traveling. I've taken lots of short trips with my parents near our home. Camping in the mountains is my favorite. James |June 30，2024I get better sleep this year. I used to go to bed at 12: 30 am, and sometimes at 1:00 am after finishing my homework. Now I fall asleep before 10: 00 pm. And I have time to read a few pages of my favorite novel before that. What an enjoyable thing it is!70. What did Betty want to know?A. People's wishes for the new year.B. People's changes in the first half of 2024.C. People's living habits.D. People's favorite jobs.71. What can Alfred do this year?A. Get enough sleep.B. Visit his friends more.C. Make delicious dishes.D. Take a lot of short trips.72. Where may we read this text?A. On the Internet.B. In a storybook.C. In a dictionary.D. In a sports magazine.第二节:阅读下面的短文，并用英语回答问题(请注意每小题后面的词数要求)。
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人教版九年级语文上册第四单元测试卷姓名：得分：一、积累与运用（共6题，18分）1、下列词语中加点字的读音完全正确的一组是（）（3分）A诓．骗（kuānɡ）脊．梁（jǐ）滞．碍（zhì）搽．粉（chá）B、彷徨．（fáng）怡．情（yì）脂．粉（zhǐ）玄．虚（xuán）C、汲．取（jí）要诀．（jué）泛滥．（làn）精僻．（pí）D、狡黠．（xiá）诘．难（jié）抠．门（kōu ）咀．嚼（jū）2、下列词语书写无误．．的一项是（）（3分）A．仰慕凛洌鞠躬尽瘁根深蒂固B．阴诲嬉闹眼花潦乱孜孜不倦C．取缔笼罩重峦叠嶂抑扬顿挫D．迁徙羁拌脍炙人口锋芒毕露3、下面句子中加点成语使用错误．．．．．．的一项是（）（3分）A.北部湾以它得天独厚．．．．的旅游资源，吸引着众多投资者前来投资开发。
B.奥运“样云”火炬所经之处，“中国加油、四川加油”的口号络绎不绝．．．．。
C.在经历“修旧如旧”的修复工程之后，北海老街古朴、沧桑的风格一如既往．．．．。
D.诗人匠心独运．．．．，为我们描绘了一幅色彩鲜明、情景交融的山水画。
4、下列各句中有语病的一项是（）（3分）A.学生食品是否安全，关系到我国青少年能否健康成长，这是一个必须引起全社会关注的问题。
B.去年5月28日，河北唐山附近发生大约里氏4.2级左右的地震，北京地区也有震感。
C.为应对南海地区不断升级的紧张局势，我国派出3艘海洋执法船在黄岩岛海域执行护航任务。
D.通过观看中央电视台《艺术人生》节目，我了解到“大衣哥”朱之文是一个朴实平易的人。
5、下列说法有误的一项是( )(3分)A．《事物的正确答案不止一个》作者罗迦·费·因格，是美国实业家。
B．《应有格物致知精神》作者丁肇中，是美籍华裔物理学家。
C．《不求甚解》作者邓拓，代表作《燕山夜话》。
D．《中国人失掉自信力了吗》作者鲁迅，原名周作人。
这篇文章写于“九·一八”事变三周年之际。
6、从上下文连贯的要求看，依次填入下面句子的横线上的语句最恰当的一项是（）（3分）生活中种种苦涩，，历程中多少挫折，，漫漫岁月里的辛苦挣扎，。
但由于忍耐，由于奋斗，也由于不断地向上望，坚韧的生命终能超越所有的忧患与磨难，而从生活自身获得智慧。
A．曾催人衰老憔悴曾使人失望流泪曾给人痛苦沉思B．曾催人衰老憔悴曾给人痛苦沉思曾使人失望流泪C．曾使人失望流泪曾给人痛苦沉思曾催人衰老憔悴D．曾使人失望流泪曾催人衰老憔悴曾给人痛苦沉思二、现代文阅读（52分）(一) (25分)①从公开的文字上看起来：两年以前，我们总自夸着“地大物博”，是事实；不久就不再自夸了，只希望着国联，也是事实；现在是既不夸自己，也不信国联，改为一味求神拜佛，怀古伤今了——却也是事实。
②于是有人慨叹曰：中国人（a）失掉自信力了。
③如果单据这一点现象而论，自信其实是早就失掉了的。
先前信“地”，信“物”，后来信“国联”，都没有相信过“自己”。
假使这也算一种“信”，那也只能说中国人曾经有过“他信力”，自从对国联失望之后，便把这他信力都失掉了。
④失掉了他信力，就会疑，一个转身，也许能够只相信了自己，倒是一条新生路，但不幸的是逐渐玄虚起来了。
信“地”和“物”，还是切实的东西，国联就渺茫，不过这还可以令人不久就省悟到依赖它的不可靠。
一到求神拜佛，可就玄虚之至了，有益或是有害，一时就找不出分明的结果来，它可以令人更长久的麻醉着自己。
⑤中国人(b)现在是在发展着“自欺力”。
⑥“自欺”也并非现在的新东西，现在只不过日见其明显，笼罩了一切罢了。
然而，在这笼罩之下，我们有并不失掉自信力的中国人在。
⑦我们从古以来，就有埋头苦干的人，有拼命硬干的人，有为民请命的人，有舍身求法的人，……虽是等于为帝王将相作家谱的所谓“正史”，也往往掩不住他们的光耀，这就是中国的脊梁。
⑧这一类的人们，就是现在也何尝少呢?他们有确信，不自欺；他们在前仆后继的战斗，不过一面总在被摧残，被抹杀，消灭于黑暗中，不能为大家所知道罢了。
说中国人失掉了自信力，用以指一部分人则可，倘若加于全体，那简直是诬蔑。
⑨要论中国人，必须不被搽在表面的自欺欺人的脂粉所诓骗，却看看他的筋骨和脊梁。
自信力的有无，状元宰相的文章是不足为据的，要自己去看地底下。
7、第1、2两段，揭示了对方什么谬论论点和论据?(4分)8、第1、2两段中反复承认：“是事实…”“也是事实…”“却也是事实”，与原文的批判有什么关系?(3分)9、阅读文章3～5段，联系全文，想一想，为什么本文以反驳对方的论证，即指出其论据不能证明论点的“突破口”？(3分)10、阅读文章6～8段，文章在批驳对方论证的基础上提出了什么样的观点?你能举出证明作者观点的事例吗?(3分)11、鲁迅为什么反复强调“中国人的脊梁”?(3分)12、在“这就是中国的脊梁”一句中，作为比喻，“脊梁”是__________________意思；“状元宰相”是指______________ _____________。
（2分）13、文中划线的ab两个“中国人”指代什么？请分别指出：（4分）a．中国人：______________________ b．中国人：______________________14、在这几段文字里，作者通过列举事实所确立的正面观点是“________________________ ______ _________。
（3分）（二）、阅读下列语段，完成后面的问题。
（12分）某心理学专家小组以实际从事创造性工作的人与不从事此类工作．．．．的人为对象进行了调查研究，并得出如下结论：“富于创造力的人，认为自己具有创造力；缺乏创造力的人，不认为自己具有创造力。
”认为“我不具备创造力”的人当中，有的觉得创造力仅是贝多芬、爱因斯坦以及莎士比亚他们的，从而进行自我压制。
不言而喻，在创造的宇宙里，贝多芬、爱囚斯坦、莎士比亚是光辉灿烂的明星。
然而在大多数情况下，即便是他们，也并非轻而易举就能获得如此非凡的灵感。
相反，这种非凡的灵感，往往产生于这样的过程：关注极其普通、甚至一闪念的想法，并对它反复推敲，逐渐充实。
由此看来，区分一个人是否拥有创造力，主要依据之一是，拥有创造力的人留意自己细小的想法。
即使他们不知道将来会产生怎样的结果，但他们很清楚，小的创意会打开大的突破口，并坚信自己一定能使之变为现实。
任何人都拥有创造力，首先要坚信这一点。
关键是要经常保持好奇心，不断积累知识；不满足于一个答案，而去探求新思路，去运用所得的知识；一旦产生小的灵感，相信它的价值，并锲而不舍地把它发展下去。
__________能做到这些，你一定会成为一个富有创造性的人。
15、第一段中的“此类工作”指的是____________________。
（3分）16、贝多芬、爱因斯坦、莎士比亚之所以成为光辉灿烂的明星是因为( )（3分）A．他们能轻而易举获得非凡的灵感。
B．他们是具有创造力的人。
C．他们关注极其普通、甚至一闪念的想法。
D．他们关注、留意自己细小的想法，并且对它反复推敲，逐渐充实。
17、要成为一个富于创造性的人，必须要做到以下三点：（3分）①___________________________ _____________②____________________________ ____________③_____________________ ___________________18、结合自身实际，谈谈怎样使自己成为一个富有创造性的人？（3分）（三）、阅读《创造力比知识更重要》，回答19—23题。
（15分）创造力比知识更重要①美国中学生头脑奥林匹克比赛中有一道竞赛题，要求参赛学生设计一种水上运载工具，但要打破常规造型，强调求异思维，体现创新精神。
许多学生绞尽脑汗，设计了各种造型的运载工具，可总摆脱不了大家熟知的船的形状和结构，惟独有一位学生构思奇特，他设计的作品像一只硕大的“水蜘蛛”，不像船那样在水上航行，而是像水蜘蛛那样在水面上“爬行”。
这件作品在所有参赛作品中独树一帜，引人注目。
虽然这一设计最后在实际操作中失败了，但几乎所有的评委都给他亮了最高分。
②这是培养学生创造能力的一个实例。
社会进入信息时代，新技术革命风起云涌，各国都把培养学生的创新精神和创造能力放到了异常突出的地位。
因为创造活动是人类生存与人类文明持续发展的重要保证，是人类知识进化的源泉。
“创造力比知识更重要”。
③那么，怎样培养创造力呢？④科学巨匠牛顿说，他所以取得伟大的成就，是因为他站在巨人的肩膀上。
这“巨人”可以理解为无数前人所创造的知识的化身。
积累知识是基础，融通知识更重要。
现代科学技术正朝着既不断分化又不断综合的方向发展，新知识的生长点往往出现在学科的边缘和学科之间的交叉处。
学文科的学生应懂一些理科知识，学理科的学生也应涉猎文学艺术。
法国化学家利希腾贝格说过：“一个只知道化学的化学家，他未必真懂化学。
”广泛涉猎，博学多识，学贯古今，触类旁通，应该成为当代有志中学生共同的追求。
⑤我们掌握的知识越多，就越容易产生新的联想、新的见解、新的创造；但我们对某一事物的传统意义知之太多，又会阻碍思维的灵活性，使我们不由自主地被前人牵着鼻子走，从而形成智力屏障，导致创造能力的僵化。
古今中外有不少人勤奋刻苦，但终其一生，有积累而无创造，为知识所累，为知识所困。
同学们要学会把心智的“杯子”空出来，为思路的开拓变化留有充分的余地，使知识能灵活地聚合、置换、跳跃、碰撞，迸发出创造的火花。
⑥善于捕捉热线，随时记录灵感。
“热线”就是酝酿成熟了的想法和思路，一旦有热线闪烁就要抓住不放，深入挖掘。
当然也要善于抓住转瞬即逝的“一闪之念”，对于那些突然闯入脑际的新思想、新概念、新形象，要随时摘记，定期整理，深入思考，激发创造。
化学家诺贝尔就是受到笔记本中“硝化甘油掉在沙地上随即凝结起来”这句话的启发，成功地解决了硝化甘油的运输问题。
每一位学生都要为自己准备一本思想记录本，当新的思想、新的灵感在头脑中闪现的时候，及时把它记下来，长期坚持，养成习惯，敏捷的思维品质和出众的创造才能就能逐渐培养出来。
19、细读全文，说说作者的观点是什么？（3分）20、文中第4段为什么说“积累知识是基础，融通知识更重要”？（3分）21、文中第5段“学会把心智的…杯子‟空出来”应如何理解？（3分）22、文中第6段举诺贝尔的事例是为了证明什么道理？（3分）23、结合实际，试举一例来谈谈培养创造能力的重要性。
（80字左右）（3分）四、写作（50分）在白驹过隙的弹指一瞬，我们便由少不更事懵懂少年走进了花一般的青春年华我们背起行囊，迈着矫健的步伐，走向未来。