第三周测 (3)

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六年级上册英语第三周周测小卷

六年级上册英语第三周周测小卷

六年级上册英语第三周周测小卷一.选出不同类的一项。

(共10小题,每题4分。

)( ) 1. A. how long B. how old C. what time( ) 2. A. near B. far C. heavy( ) 3. A. metre B. kilometre C. year( ) 4. A. building B. school C. office( ) 5. A. long B. high C. along( ) 6. A. thirty B. thirteen C. forty( ) 7. A. hundred B. famous C. thousand( ) 8. A. built B. walk C. drive( ) 9. A. museum B. library C. desk( ) 10. A. driver B. farmer C. teach二.单项选择(共15小题,每题4分。

)( ) 1. Daming is ____ the US.A. visitB. visitingC. visits( ) 2. Dming is in New York with his ____ Simon.A. brotherB. cousinC. sister( ) 3. Simon ____to go to the Great Wall.A. wantB. wantsC. wanted( ) 4. Can you ____ all of the Great Wall?A. walkB. alongC. walk along( ) 5. How ____ is the Great Wall? It’s more than fortythousand li long,A. longB. tallC. high( ) 6. ---How ____ is it?--- It is more than four hundreds years old.A. longB. oldC. tall( ) 7. How long is the river? It’s more than three thousand kilometres ____.A. tallB. highC. long( ) 8. The Empire State Building is ____office building.A. /B. anC. a( A) 9. Do you want to climb the ____ to the top?A. stairsB. hairC. star( ) 10. The people who ____ the Great Wall were very strong.A. buildB. builtC. invent( ) 11. Is it in our city?A. Yes, it is.B. Yes, it isn’t.C. No, it is. ( ) 12. How old is the Great wall? It’s more than ____ old.A.4000 yearsB. 2000 yearsC. 3000 years( ) 13. How long is the Great Wall? It’s more than ____ long.A. 40,000 liB. 14,000 liC. 5000 li( ) 14. How high is the Empire State Building? It is more than ____ high.A. 700 metresB. 600 metresC. 400 metres( ) 15. How old is the Empire State Building? It is more than ____ old.A. 90 yearsB. 80 yearsC. 100 years。

新译林版英语八年级上册第三单元8Aunit3周测试卷含答案

新译林版英语八年级上册第三单元8Aunit3周测试卷含答案
Once the old woman was ill and had to be in hospital. Her daughter went to look after her there. Two months later, the old woman came back, all their rooms were in a mess(乱成一团) .She told her son to do it. But he didn’t.. On a Saturday evening, Mrs Turner wanted to dance. She began to look for her sweater. She saw Mr Turner watching TV and asked him to help her. But he didn’t listen to her.
A. What does she like B. What’s she like
C. What does she do D. What’s she alike
( ) 6.--How many bookscan I borrow from the library at a time?
--______ two. If you want to borrow more, you will have to return the two books you have borrowed.
C. join; to speakD. to join; to speak
( ) 8. Millie has more pens than ________.
A. I am B. I do C. I has D. I have
( ) 9. Tom , you’re late again. Why not get up a little ________?

七年级下第三周周测数学试卷(有答案)

七年级下第三周周测数学试卷(有答案)

七年级下第三周周测数学试卷(有答案)一、选择题(本大题共10小题,每小题3分,共30分)1.一个三角形的两边长为2和6,第三边为偶数,则这个三角形的周长为()A.10 B.12 C.14 D.162.若一个多边形的内角和与它的外角和相等,则这个多边形是()A.三角形B.四边形C.五边形D.六边形3.一个三角形的三个内角中,锐角的个数最少为()A.0 B.1 C.2 D.34.下面说法错误的是()A.三角形的三条角平分线交于一点B.三角形的三条中线交于一点C.三角形的三条高交于一点D.三角形的三条高所在的直线交于一点5.同一平面内有四条直线a、b、c、d,若a∥b,a⊥c,b⊥d,则c、d的位置关系为()A.互相垂直B.互相平行C.相交D.没有确定关系6.如图,点E在CD延长线上,下列条件中不能判定AB∥CD的是()A.∠1=∠2 B.∠3=∠4 C.∠5=∠B D.∠B+∠BDC=180°7.如图,直线l1∥l2,则下列式子成立的是()A.∠1+∠2+∠3=180°B.∠1﹣∠2+∠3=180°C.∠2+∠3﹣∠1=180°D.∠1+∠2﹣∠3=180°8.如图,两个全等的直角三角形重叠在一起,将其中的一个三角形沿着点B到C的方向平移到△DEF的位置,AB=10,DO=4,平移距离为6,则阴影部分面积为()A.48 B.96 C.84 D.429.如图所示,小华从A点出发,沿直线前进10米后左转24°,再沿直线前进10米,又向左转24°,…,照这样走下去,他第一次回到出发地A点时,一共走的路程是()A.140米B.150米C.160米D.240米10.一个多边形切去一个角后,形成的另一个多边形的内角和为1080°,那么原多边形的边数为()A.7 B.7或8 C.8或9 D.7或8或9二、填空题(本大题共9小题,每空2分,共22分)11.回答下列问题:(1)若一个多边形的内角和与外角和的总和为1800°,则这个多边形是边形.(2)一个多边形的每一个外角都等于72°,这个多边形是边形,它的每个内角是度?12.若n边形内角和为900°,则边数n=.13.一个正多边形的内角和为540°,则这个正多边形的每一个外角等于.14.若多边形的每一个内角均为135°,则这个多边形的边数为.15.如图,是一个不规则的五角星,则∠A+∠B+∠C+∠D+∠E=.(用度数表示)16.如图,AD∥BC,BD平分∠ABC,∠A:∠ABC=2:1,则∠ADB=度.17.在△ABC中,已知∠ABC=50°,∠ACB=60°,BE是AC上的高,CF是AB上的高,H是BE 和CF的交点,则∠BHC=.18.如图,AB∥CD∥EF,且CG∥AF,则图中与∠BAF互补的角共有个.19.如图,在△ABC中,∠A=60°,BD、CD分别平分∠ABC、∠ACB,M、N、Q分别在DB、DC、BC的延长线上,BE、CE分别平分∠MBC、∠BCN,BF、CF分别平分∠EBC、∠ECQ,则∠F=.三、解答题(本大题共六小题,共58分)20.如图,已知DF⊥AB于点F,且∠A=45°,∠D=30°,求∠ACB的度数.21.如图,在△ABC中,∠ABC=56°,∠ACB=44°,AD是BC边上的高,AE是△ABC的角平分线,你能求出∠DAE的度数吗?请试一试!22.如图,D是△ABC的BA边延长线上的一点,AE是∠DAC的平分线,∠B=∠C,试说明:AE∥BC.23.如图,∠ABD和∠BDC的平分线交于点E,BE的延长线交CD于点F,且∠1+∠2=90°.求证:(1)AB∥CD;(2)猜想∠2 与∠3的关系并证明.24.完成下面推理过程:如图,已知∠1=∠2,∠B=∠C,可推得AB∥CD.理由如下:∵∠1=∠2(已知),且∠1=∠CGD(),∴∠2=∠CGD(等量代换).∴CE∥BF().∴∠=∠C().又∵∠B=∠C(已知),∴∠=∠B(等量代换).∴AB∥CD().25.如图①,△ABC的角平分线BD、CE相交于点P.(1)如果∠A=70°,求∠BPC的度数;(2)如图②,过P点作直线MN∥BC,分别交AB和AC于点M和N,试求∠MPB+∠NPC的度数(用含∠A的代数式表示);(3)在(2)的条件下,将直线MN绕点P旋转.(i)当直线MN与AB、AC的交点仍分别在线段AB和AC上时,如图③,试探索∠MPB、∠NPC、∠A三者之间的数量关系,并说明你的理由;(ⅱ)当直线MN与AB的交点仍在线段AB上,而与AC的交点在AC的延长线上时,如图④,试问(i)中∠MPB、∠NPC、∠A三者之间的数量关系是否仍然成立?若成立,请说明你的理由;若不成立,请给出∠MPB、∠NPC、∠A三者之间的数量关系,并说明你的理由.七年级(下)第三周周测数学试卷参考答案与试题解析一、选择题(本大题共10小题,每小题3分,共30分)1.一个三角形的两边长为2和6,第三边为偶数,则这个三角形的周长为()A.10 B.12 C.14 D.16【考点】三角形三边关系.【分析】根据在三角形中任意两边之和大于第三边,任意两边之差小于第三边.即可求解.【解答】解:第三边的取值范围是大于4且小于8,又第三边是偶数,故第三边是6.则该三角形的周长是14.故选:C.2.若一个多边形的内角和与它的外角和相等,则这个多边形是()A.三角形B.四边形C.五边形D.六边形【考点】多边形内角与外角.【分析】根据多边形的内角和公式(n﹣2)•180°与多边形的外角和定理列式进行计算即可得解.【解答】解:设多边形的边数为n,根据题意得(n﹣2)•180°=360°,解得n=4.故这个多边形是四边形.故选B.3.一个三角形的三个内角中,锐角的个数最少为()A.0 B.1 C.2 D.3【考点】三角形内角和定理.【分析】依据三角形的内角和是180°,假设在一个三角形中只有1个锐角或一个锐角都没有,则可以得出这个三角形的内角和大于180°,所以假设不成立,据此即可判断.【解答】解:假设在一个三角形中只有1个锐角或一个锐角都没有,则另外的两个角或三个角都大于或等于90°,于是可得这个三角形的内角和大于180°,这样违背了三角形的内角和定理,假设不成立.所以任何一个三角形的三个内角中至少有2个锐角.故选(C).4.下面说法错误的是()A.三角形的三条角平分线交于一点B.三角形的三条中线交于一点C.三角形的三条高交于一点D.三角形的三条高所在的直线交于一点【考点】三角形的角平分线、中线和高.【分析】根据三角形的角的平分线、中线、高线的性质即可确定.【解答】解:A、三角形的三条角平分线交于一点,是三角形的内心,故命题正确;B、三角形的三条中线交于一点,是三角形的重心,故命题正确;三角形的三条高所在的直线交于一点,三条高不一定相交,故C错误,D正确.故选C.5.同一平面内有四条直线a、b、c、d,若a∥b,a⊥c,b⊥d,则c、d的位置关系为()A.互相垂直B.互相平行C.相交D.没有确定关系【考点】平行公理及推论.【分析】作出图形,根据平行公理的推论解答.【解答】解:如图,∵a∥b,a⊥c,∴c⊥b,又∵b⊥d,∴c∥d.故选B.6.如图,点E在CD延长线上,下列条件中不能判定AB∥CD的是()A.∠1=∠2 B.∠3=∠4 C.∠5=∠B D.∠B+∠BDC=180°【考点】平行线的判定.【分析】根据平行线的判定方法直接判定.【解答】解:选项B中,∵∠3=∠4,∴AB∥CD (内错角相等,两直线平行),所以正确;选项C中,∵∠5=∠B,∴AB∥CD (内错角相等,两直线平行),所以正确;选项D中,∵∠B+∠BDC=180°,∴AB∥CD(同旁内角互补,两直线平行),所以正确;而选项A中,∠1与∠2是直线AC、BD被AD所截形成的内错角,因为∠1=∠2,所以应是AC ∥BD,故A错误.故选A.7.如图,直线l1∥l2,则下列式子成立的是()A.∠1+∠2+∠3=180°B.∠1﹣∠2+∠3=180°C.∠2+∠3﹣∠1=180°D.∠1+∠2﹣∠3=180°【考点】平行线的性质.【分析】根据平行线的性质进行判断即可.【解答】解:因为l1∥l2,所以∠1=+∠3,可得:∠1+∠2﹣∠3=180°,故选D8.如图,两个全等的直角三角形重叠在一起,将其中的一个三角形沿着点B到C的方向平移到△DEF的位置,AB=10,DO=4,平移距离为6,则阴影部分面积为()A.48 B.96 C.84 D.42【考点】平移的性质.=S梯形ABEO,【分析】根据平移的性质得出BE=6,DE=AB=10,则OE=6,则阴影部分面积=S四边形ODFC根据梯形的面积公式即可求解.【解答】解:由平移的性质知,BE=6,DE=AB=10,∴OE=DE﹣DO=10﹣4=6,=S梯形ABEO=(AB+OE)•BE=(10+6)×6=48.∴S四边形ODFC故选:A.9.如图所示,小华从A点出发,沿直线前进10米后左转24°,再沿直线前进10米,又向左转24°,…,照这样走下去,他第一次回到出发地A点时,一共走的路程是()A.140米B.150米C.160米D.240米【考点】多边形内角与外角.【分析】多边形的外角和为360°每一个外角都为24°,依此可求边数,再求多边形的周长.【解答】解:∵多边形的外角和为360°,而每一个外角为24°,∴多边形的边数为360°÷24°=15,∴小华一共走了:15×10=150米.10.一个多边形切去一个角后,形成的另一个多边形的内角和为1080°,那么原多边形的边数为()A.7 B.7或8 C.8或9 D.7或8或9【考点】多边形内角与外角.【分析】首先求得内角和为1080°的多边形的边数,即可确定原多边形的边数.【解答】解:设内角和为1080°的多边形的边数是n,则(n﹣2)•180°=1080°,解得:n=8.则原多边形的边数为7或8或9.故选:D.二、填空题(本大题共9小题,每空2分,共22分)11.回答下列问题:(1)若一个多边形的内角和与外角和的总和为1800°,则这个多边形是十边形.(2)一个多边形的每一个外角都等于72°,这个多边形是五边形,它的每个内角是108度?【考点】多边形内角与外角.【分析】(1)根据多边形的外角与内角的关系,可得答案;(2)根据多边形的外角和,可得答案;根据内角与外角的关系,可得答案.【解答】解:(1)∵相邻的内角与外角是邻补角,∴相邻内角与外角的和180°,1800÷180=10,故答案为:十;(2)360°÷72°=5,故答案为:五;内角180°﹣72°=108°,故答案为:108.12.若n边形内角和为900°,则边数n=7.【考点】多边形内角与外角.【分析】由n边形的内角和为:180°(n﹣2),即可得方程180(n﹣2)=900,解此方程即可【解答】解:根据题意得:180(n﹣2)=900,解得:n=7.故答案为:7.13.一个正多边形的内角和为540°,则这个正多边形的每一个外角等于72°.【考点】多边形内角与外角.【分析】首先设此多边形为n边形,根据题意得:180(n﹣2)=540,即可求得n=5,再由多边形的外角和等于360°,即可求得答案.【解答】解:设此多边形为n边形,根据题意得:180(n﹣2)=540,解得:n=5,∴这个正多边形的每一个外角等于:=72°.故答案为:72°.14.若多边形的每一个内角均为135°,则这个多边形的边数为8.【考点】多边形内角与外角.【分析】先求出每一外角的度数是45°,然后用多边形的外角和为360°÷45°进行计算即可得解.【解答】解:∵所有内角都是135°,∴每一个外角的度数是180°﹣135°=45°,∵多边形的外角和为360°,∴360°÷45°=8,即这个多边形是八边形.故答案为:8.15.如图,是一个不规则的五角星,则∠A+∠B+∠C+∠D+∠E=180°.(用度数表示)【考点】三角形内角和定理.【分析】根据三角形外角性质,可得∠1=∠C+∠2,∠2=∠A+∠D,那么有∠1=∠C+∠A+∠D,再根据三角形内角和定理有∠1+∠B+∠E=180°,从而易求∠A+∠B+∠C+∠D+∠E=180°.【解答】解:如右图所示,∵∠1=∠C+∠2,∠2=∠A+∠D,∴∠1=∠C+∠A+∠D,又∵∠1+∠B+∠E=180°,∴∠A+∠B+∠C+∠D+∠E=180°.故答案是:180°.16.如图,AD∥BC,BD平分∠ABC,∠A:∠ABC=2:1,则∠ADB=30度.【考点】平行线的性质;角平分线的定义.【分析】本题主要利用平行线的性质和角平分线的定义进行做题.【解答】解:∵AD∥BC,∴∠A+∠ABC=180°;∵∠A:∠ABC=2:1,∴∠ABC=60°;∵BD平分∠ABC,∴∠DBC=30°,∵AD∥BC,∴∠ADB=30°.17.在△ABC中,已知∠ABC=50°,∠ACB=60°,BE是AC上的高,CF是AB上的高,H是BE 和CF的交点,则∠BHC=110°.【考点】多边形内角与外角;三角形内角和定理.【分析】先利用三角形的内角和等于180°求出∠A的度数,再利用四边形的内角和等于360°求出∠EHF的度数,再根据对顶角相等求解即可.【解答】解:∵∠ABC=50°,∠ACB=60°,∴∠A=180°﹣∠ABC﹣∠ACB=180°﹣50°﹣60°=70°,∵BE是AC上的高,CF是AB上的高,∴∠EHF=360°﹣90°×2﹣70°=110°,∴∠BHC=∠EHF=110°.故答案为:110°.18.如图,AB∥CD∥EF,且CG∥AF,则图中与∠BAF互补的角共有5个.【考点】平行线的性质.【分析】根据平行线的性质及对顶角的定义进行解答即可.【解答】解:∵AB∥CD∥EF,∴∠BAF+∠AHD=180°,∠AHD=∠1,∴∠AHD、∠1与∠BAF互补;∵∠CHF=∠AHD,∴∠AHF与∠BAF互补;∵CG∥AF,∴∠MCG=∠CHF,∠1=∠2,∴∠2、∠MCG与∠BAF互补;∴图中与∠BAF互补的角共有5个.故答案为:5.19.如图,在△ABC中,∠A=60°,BD、CD分别平分∠ABC、∠ACB,M、N、Q分别在DB、DC、BC的延长线上,BE、CE分别平分∠MBC、∠BCN,BF、CF分别平分∠EBC、∠ECQ,则∠F=15°.【考点】三角形内角和定理;三角形的外角性质.【分析】先由BD、CD分别平分∠ABC、∠ACB得到∠DBC=∠ABC,∠DCB=∠ACB,在△ABC中根据三角形内角和定理得∠DBC+∠DCB=(∠ABC+∠ACB)==60°,则根据平角定理得到∠MBC+∠NCB=300°;再由BE、CE分别平分∠MBC、∠BCN得∠5+∠6=∠MBC,∠1=∠NCB,两式相加得到∠5+∠6+∠1=(∠NCB+∠NCB)=150°,在△BCE中,根据三角形内角和定理可计算出∠E=30°;再由BF、CF分别平分∠EBC、∠ECQ得到∠5=∠6,∠2=∠3+∠4,根据三角形外角性质得到∠3+∠4=∠5+∠F,∠2+∠3+∠4=∠5+∠6+∠E,利用等量代换得到∠2=∠5+∠F,2∠2=2∠5+∠E,再进行等量代换可得到∠F=∠E.【解答】解:∵BD、CD分别平分∠ABC、∠ACB,∠A=60°,∴∠DBC=∠ABC,∠DCB=∠ACB,∴∠DBC+∠DCB=(∠ABC+∠ACB)==×=60°,∴∠MBC+∠NCB=360°﹣60°=300°,∵BE、CE分别平分∠MBC、∠BCN,∴∠5+∠6=∠MBC,∠1=∠NCB,∴∠5+∠6+∠1=(∠NCB+∠NCB)=150°,∴∠E=180°﹣(∠5+∠6+∠1)=180°﹣150°=30°,∵BF、CF分别平分∠EBC、∠ECQ,∴∠5=∠6,∠2=∠3+∠4,∵∠3+∠4=∠5+∠F,∠2+∠3+∠4=∠5+∠6+∠E,即∠2=∠5+∠F,2∠2=2∠5+∠E,∴2∠F=∠E,∴∠F=∠E=×30°=15°.故答案为15°.三、解答题(本大题共六小题,共58分)20.如图,已知DF⊥AB于点F,且∠A=45°,∠D=30°,求∠ACB的度数.【考点】三角形内角和定理.【分析】由三角形的内角和定理,可得∠AEF=45°,再由对顶角相等得出∠CED=∠AEF=45°,由外角和定理即可求得∠ACB的度数.【解答】解:∵DF⊥AB于点F,∴∠EFA=90°,∵∠A=45°,∴∠AEF=45°,∴∠ACB=∠CED+∠D=45°+30°=75°.21.如图,在△ABC中,∠ABC=56°,∠ACB=44°,AD是BC边上的高,AE是△ABC的角平分线,你能求出∠DAE的度数吗?请试一试!【考点】解直角三角形.【分析】先求出∠BAC的度数,再求出∠BAD的度数和∠CAE的度数,再求出∠DAE的度数.【解答】解:∵∠BAC=180°﹣56°﹣44°=80°,又∵AE是△ABC的角平分线,∴∠CAE=40°,∵∠ABC=56°,AD是BC边上的高.∴∠BAD=90°﹣56°=34°,∴∠DAE=∠BAE﹣∠BAD=∠CAE﹣∠BAD=40°﹣34°=6°.22.如图,D是△ABC的BA边延长线上的一点,AE是∠DAC的平分线,∠B=∠C,试说明:AE∥BC.【考点】平行线的判定;三角形的外角性质.【分析】由AE是∠DAC的平分线,则可得∠DAE=∠CAE,由三角形外角性质,可得∠DAC=∠B+∠C,再根据∠B=∠C,得出∠DAE=∠B,据此可得AE∥BC.【解答】证明:∵AE是∠DAC的平分线,∴∠DAE=∠EAC,∵∠DAC是△ABC的外角,∴∠DAE=∠B,∴AE∥BC.23.如图,∠ABD和∠BDC的平分线交于点E,BE的延长线交CD于点F,且∠1+∠2=90°.求证:(1)AB∥CD;(2)猜想∠2 与∠3的关系并证明.【考点】平行线的判定;角平分线的定义;余角和补角.【分析】(1)已知BE、DE平分∠ABD、∠BDC,且∠1+∠2=90°,可得∠ABD+∠BDC=180°,根据同旁内角互补,可得两直线平行.(2)已知∠1+∠2=90°,即∠BED=90°,那么∠3+∠FDE=90°,将等角代换,即可得出∠3与∠2的数量关系.【解答】证明:(1)∵BE、DE平分∠ABD、∠BDC,∴∠1=∠ABD,∠2=∠BDC;∵∠1+∠2=90°,∴∠ABD+∠BDC=180°;∴AB∥CD;(同旁内角互补,两直线平行)(2)∠2+∠3=90°.理由:∵DE平分∠BDC,∴∠2=∠FDE;∵∠1+∠2=90°,∴∠BED=∠DEF=90°;∴∠3+∠FDE=90°;∴∠2+∠3=90°.24.完成下面推理过程:如图,已知∠1=∠2,∠B=∠C,可推得AB∥CD.理由如下:∵∠1=∠2(已知),且∠1=∠CGD(对顶角相等),∴∠2=∠CGD(等量代换).∴CE∥BF(同位角相等,两直线平行).∴∠BFD=∠C(两直线平行,同位角相等).又∵∠B=∠C(已知),∴∠BFD=∠B(等量代换).∴AB∥CD(内错角相等,两直线平行).【考点】平行线的判定与性质.【分析】先由对顶的定义得到∠1=∠CGD,则∠2=∠CGD,根据平行线的判定得到CE∥BF,则∠C=∠BFD,易得∠B=∠BFD,然后根据平行线的判定即可得到AB∥CD.【解答】解:答案为:对顶角相等;同位角相等,两直线平行;BFD两直线平行,同位角相等;BFD;内错角相等,两直线平行.25.如图①,△ABC的角平分线BD、CE相交于点P.(1)如果∠A=70°,求∠BPC的度数;(2)如图②,过P点作直线MN∥BC,分别交AB和AC于点M和N,试求∠MPB+∠NPC的度数(用含∠A的代数式表示);(3)在(2)的条件下,将直线MN绕点P旋转.(i)当直线MN与AB、AC的交点仍分别在线段AB和AC上时,如图③,试探索∠MPB、∠NPC、∠A三者之间的数量关系,并说明你的理由;(ⅱ)当直线MN与AB的交点仍在线段AB上,而与AC的交点在AC的延长线上时,如图④,试问(i)中∠MPB、∠NPC、∠A三者之间的数量关系是否仍然成立?若成立,请说明你的理由;若不成立,请给出∠MPB、∠NPC、∠A三者之间的数量关系,并说明你的理由.【考点】三角形内角和定理;平行线的性质;三角形的外角性质.【分析】(1)根据三角形内角和定理得到∠BPC=180°﹣∠PBC﹣∠PCB,再根据角平分线定义得到∠BPC=180°﹣(∠ABC+∠ACB),再利用三角形内角和定理得∠BPC=180°﹣=90°+∠A,然后把∠A的度数代入计算;(2)根据平角定义得∠MPB+∠NPC=180°﹣∠BPC,然后根据(1)的求解;(3)(i)∠与(2)的说理一样;(ⅱ)有结论∠MPB﹣∠NPC=90°﹣∠A.【解答】解:(1)∠BPC=180°﹣∠PBC﹣∠PCB=180°﹣(∠ABC+∠ACB)=180°﹣=90°+∠A=90°+×70°=125°;(2)∵∠BPC=90°+∠A,∴∠MPB+∠NPC=180°﹣∠BPC=180°﹣(90°+∠A)=90°﹣∠A;(3)(i)∠MPB+∠NPC=90°﹣∠A.理由如下:∵∠BPC=90°+∠A,∴∠MPB+∠NPC=180°﹣∠BPC=180°﹣(90°+∠A)=90°﹣∠A;(ⅱ)不成立,有∠MPB﹣∠NPC=90°﹣∠A.理由如下:由图可知∠MPB+∠BPC﹣∠NPC=180°,由(i)知:∠BPC=90°+∠A,∴∠MPB﹣∠NPC=180°﹣∠BPC=180°﹣(90°+∠A)=90°﹣∠A.2017年4月7日。

三年级下册英语第三次周考测试卷的答案

三年级下册英语第三次周考测试卷的答案

三年级下册英语第三次周考测试卷的答案考试时间:120分钟满分:100分姓名:____________班级:_____________学号:_____________1、There is _______ meat in the fridge.Lets go and buy some. [单选题] *A. little(正确答案)B. a littleC. fewD. a few2、30.It is known that ipad is _________ for the old to use. [单选题] *A.enough easyB.easy enough (正确答案)C.enough easilyD.easily enough3、You cannot see the doctor _____ you have made an appointment with him. [单选题] *A. exceptB.evenC. howeverD.unless(正确答案)4、Which is _______ city, Shanghai, Beijing or Chengdu? [单选题] *A. largeB. largerC. largestD. the largest(正确答案)5、35.Everyone in China ______ Mid-Autumn Day. [单选题] *A.likes(正确答案)B.likeC.is likingD.are like6、52.I'm happy to ________ a birthday card from an old friend. [单选题] * A.buyB.makeC.loseD.receive(正确答案)7、--Jimmy, you are supposed to?_______ your toys now.--Yes, mom. [单选题] *A. put upB. put onC. put away(正确答案)D. put down8、One thousand dollars a month is not a fortune but at least can help cover my living(). [单选题] *A. billsB. expenses(正确答案)C. pricesD. charges9、78.—Welcome to China. I hope you'll enjoy the ________.—Thank you. [单选题] *A.tour(正确答案)B.sizeC.nameD.colour10、98.There is a post office ______ the fruit shop and the hospital. [单选题] *A.atB.withC.between(正确答案)D.among11、You should stick to your()and tell him you won' t do the thing. [单选题] *A. principle(正确答案)B. qualityC. contactD. influence12、I couldn’t find Peter,_____did I know where he had gone. [单选题] *A.nor(正确答案)B.eitherC.neverD.as13、Customers see location as the first factor when_____a decision about buying a house. [单选题] *A.makeB.to makeC.making(正确答案)D.made14、In crowded places like airports and railway stations, you___ take care of your luggage. [单选题] *A. canB. mayC. must(正确答案)D. will15、The manager isn’t in at the moment. May I _______ a message? [单选题] *A. take(正确答案)B. makeC. haveD. keep16、—John, How is it going? —______.()[单选题] *A. It’s sunnyB. Thank youC. Well doneD. Not bad(正确答案)17、We were caught in a traffic jam. By the time we arrived at the airport the plane _____. [单选题] *A. will take offB. would take offC. has taken offD. had taken off(正确答案)18、We can _______ some information about this city on the Internet. [单选题] *A. look up(正确答案)B. look likeC. look afterD. look forward to19、______ my great joy, I met an old friend I haven' t seen for years ______ my way ______ town. [单选题] *A. To, in, forB. To, on, to(正确答案)C. With, in, toD. For, in, for20、I’m so tired after _______ walk. [单选题] *A. three hour’sB. three hours’(正确答案)C. three hoursD. three hour21、If you do the same thing for a long time, you'll be tired of it. [单选题] *A. 试图B. 努力C. 厌倦(正确答案)D. 熟练22、I live a very quiet and peaceful life. [单选题] *A. 宁静的(正确答案)B. 舒适的C. 和平的D. 浪漫的23、The book is _______. You’d better buy it. [单选题] *A. useful(正确答案)B. uselessC. useD. careful24、You have been sitting on my hat and now it is badly out of(). [单选题] *A. dateB. shape(正确答案)C. orderD. balance25、My home is about _______ away from the school. [单选题] *A. three hundred metreB. three hundreds metresC. three hundred metres(正确答案)D. three hundreds metre26、Don’t _______. He is OK. [单选题] *A. worry(正确答案)B. worried aboutC. worry aboutD. worried27、Tony can _______ the guitar.Now he _______ the guitar. [单选题] *A. play; plays(正确答案)B. playing; playingC. plays; is playingD. play; is playing28、Henry lives happily with his three cats. _______ of them are part of his family. [单选题] *A. NoneB. BothC. All(正确答案)D. Neither29、We can see ______ stars at night if it doesn’t rain. [单选题] *A. a thousand ofB. thousandsC. thousand ofD. thousands of(正确答案)30、( ) What _____ fine weather we have these days! [单选题] *A. aB. theC. /(正确答案)D. an。

小学数学-有答案-新人教版六年级(上)第3周周测数学试卷

小学数学-有答案-新人教版六年级(上)第3周周测数学试卷

新人教版六年级(上)第3周周测数学试卷一、填空.(每空1.5分,共30分)1. “九月份用电量是八月份的 14”这句话是把________看作单位“1”,表示把________平均分成4份,九月份占其中的________份。

2. 一条公路,每天修它的 320,5天可以修它的________,还剩下它的________.3. 712小时=________分 115小时=________分1720千米=________米 78吨=________千克。

4. 40吨的58是________;34米比35米多________米。

5. 一根铁丝长3米,剪去了23米,还剩________米。

6. 一根铁丝长3米,剪去了23,还剩下这根铁丝的()(),还剩________米。

7. 男生占总人数的 712,女生占总人数的 ()().8. 甲数是60,乙数是甲数的 13,丙数是乙数的14,丙数是________.9. 张师傅加工30个零件,4天全部完成。

张师傅平均每天完成这批零件的 ()().10. 在横线上填上“>”、“<”、“=”.56×34________5657×119________5734×34________34+34.二、判断.(每题2分,共8分)甲的15等于乙,是把乙看作单位1.________(判断对错)把10克糖放入100克水,糖占糖水的110.________(判断对错)1千米的 35等于3千米的15.________.(判断对错)411+211×116=611×116=1________.(判断对错)三、.四.看图列式并计算.(8分)看图列式并计算:五、解决问题(每题5分,共35分)工程队计划修公路12千米,已经修了56,已经修了多少千米?工程队计划修公路12千米,还剩56没有修,还剩多少千米没修?果园里有苹果树240棵,杏树的棵数相当于梨树的25,梨树的棵数是苹果树的 58,杏树有多少棵?果园里有苹果树240棵,杏树的棵数相当于梨树的25,梨树的棵数是苹果树的 58,梨树有多少棵?一堆货物60吨,第一次用去总数的13,第二次用去总数的25,两次共用去多少吨货物?一堆货物60吨,第一次用去总数的13,第一次用去多少吨?还剩多少吨货物?参考答案与试题解析新人教版六年级(上)第3周周测数学试卷一、填空.(每空1.5分,共30分) 1. 【答案】八月份用电量,八月份用电量,1 【考点】分数的意义、读写及分类 【解析】根据判断单位“1”的方法:一般是把“比、占、是、相当于”后面的量看作单位“1”,即分数“的”字前面的量看作单位“1”,进行解答即可。

九年级物理第3周测

九年级物理第3周测

初三物理周测试卷班级_______姓名______一、选择题:(每题3分,共33分)1.在日常生活中,用10N的拉力不能提起重15N的物体的简单机械是()A.一个定滑轮 B.一个动滑轮 C.杠杆 D.斜面2.家用的手摇晾衣架如图所示,它实际是由定滑轮和动滑轮组成的滑轮组。

假设衣服和晾衣架的总重为100N,则静止时绳子自由端的拉力为(不计动滑轮重及摩擦)()A.100N B.50N C.25N D.20N3.一个足球运动员用100N的力踢一个重为5N的足球,球离脚后在水平草地上向前滚了20m,在球滚动过程中,运动员对足球做的功为()A.100J B.2000J C.2100J D.0J4.如图所示,拉力F=80N,物体重力G=120N,不计摩擦和绳重。

若将物体匀速提高1m,以下说法不正确的是()A.拉力做的有用功为80J B.动滑轮的重力为40NC.拉力做的总功为160J D.该滑轮组的机械效率为75%5.用相同的滑轮和绳子分别组成如图所示的甲、乙两个滑轮组,把相同的重物匀速提升相同的高度.若不计绳重及摩擦,下列说法正确的是()A.绳子受的拉力F1和F2大小相等,滑轮组的机械效率相同B.绳子受的拉力F1和F2大小不相等,滑轮组的机械效率不同C.绳子自由端移动的距离不相等,拉力对滑轮组所做的功相等D.绳子自由端移动的距离不相等,拉力对滑轮组所做的功不相等6.分别用如图所示的(甲)、(乙)两个滑轮组,在100s内将重为400N的物体G匀速提升10m,每个滑轮的重均为20N。

不计绳重及摩擦,此过程中()A.F甲做的功大于F乙做的功 B.F甲做的功小于F乙做的功C.F甲做功的功率小于F乙做功的功率 D.F甲做功的功率等于F乙做功的功率7.甲、乙两人分别使用两套滑轮组,将同样重的物体匀速提升相同高度,所用滑轮组的机械效率分别为80%和60%,甲用1 min,乙用0.5 min,则两人所做的功之比和功率之比分别为 ( )A.8:3,4:3 B.3:4,3:8 C.3:8,3:16 D.2:3,1:38、如图所示,拉力F=4N,则甲、乙两弹簧测力计的示数分别为()A. 8N、8N B. 12N、8N C.8N 、12N D、12N 、12N9、60kg的人站在跷跷板某一位置时,跷跷板处于如图所示的平衡状态.由此可估测球的质量约为()A.10kg B.30kg C.60kg D.120kg10、如图所示,不计绳重和摩擦,拉力F是125N,在10s内将重物匀速提升2m,此时滑轮组的机械效率是80%,则下列说法正确的是()A.动滑轮重是50N B.物体重是375NC.拉力F的功率是25W D.拉力F做的功是750J11、一重500N的举重运动员,最多可举起1200N的物体,这个人站在地面上,用如图所示装置提升重物,滑轮质量不计,他最多能提起的物体重()A.500N B.1000N C.1200N D.2400N二、填空题(每空2分,共30分)12.小明将放在水平桌面上重为3N的物理课本,水平匀速拉动50cm。

中考数学九年级第三次周测试题及答案答案

中考数学九年级第三次周测试题及答案答案

绝密★启用前2018-2019学年度九年级第三次周测试题未命名未命名注意事项:1.答题前填写好自己的姓名、班级、考号等信息2.请将答案正确填写在答题卡上第I卷(选择题)请点击修改第I卷的文字说明一、解答题(共36分)1.在平面直角坐标系中,如果抛物线y=3x2不动,而把x轴、y轴分别向上、向右平移2个单位,那么在新坐标系下抛物线的解析式是 ( ) A.y=3(x + 2)2-2 B.y=3(x-2)2 + 2C.y=3(x-2)2-2 D.y=3(x + 2)2 + 2【答案】A【解析】原抛物线的顶点为(0,0),∵把x轴、y轴分别向上、向右平移2个单位,∴新抛物线的顶点为(-2,-2),设新抛物线为y=3(x-h)2+k,∴新坐标系中此抛物线的解析式是y=3(x+2)2-2.故选A.2.如图,已知⊙O的圆心是数轴原点,半径为1,∠AOB=45°,点P在数轴上运动,若过点P且与OA平行的直线与⊙O有公共点,设P点代表的实数为x,则x的取值范围是( )A.-1≤x≤1 B.-x≤. 0≤x≤ D. x>【答案】B【解析】分析:首先作出圆的切线,求出直线与圆相切时的P的取值,再结合图象可得出P的取值范围,即可得出答案.详解:作圆的切线,设切点为C,连接OC,则圆的半径OC=1,OC⊥P'C,∵∠AOB=45°,OA∥P'C,∴∠OP'C=45°,∴P'C=OC=1,∴OP'=,同理,原点左侧的距离也是,所以x的取值范围是-≤x≤.故选:B.点睛:此题主要考查了直线与圆的位置关系,作出切线找出直线与圆有交点的分界点是解决问题的关键.3.在反比例函数xky =(k <0)的图象上有两点,()1,1y -,⎪⎭⎫⎝⎛-2,41y 则21y y -的值是( )A .正数B .非正数C .负数D .不能确定 【答案】C 【解析】试题分析:求出y 1,y 2的值,求出其差,根据k <0即可得出答案. 试题解析:点(-1,y 1),(-14,y 2)在反比例函数y=k x(k <0)的图象上, ∴代入得:y 1=-k ,y 2=-4k , ∴y 1-y 2=-k+4k=3k , ∵k <0,∴y 1-y 2的值是负数, 故选C .考点:反比例函数图象上点的坐标特征.4.在同一坐标系中,一次函数y=ax+b 与二次函数y=ax 2+b 的大致图象是( ).A .B .C .D .【答案】C【解析】A 选项:由一次函数图象可知,a>0,b>0;由二次函数图象可知,a<0,b>0. 故A 选项错误.B 选项:由一次函数图象可知,a<0,b>0;由二次函数图象可知,a>0,b<0. 故B 选项错误.C 选项:由一次函数图象可知,a<0,b>0;由二次函数图象可知,a<0,b>0. 故C 选项正确.D 选项:由一次函数图象可知,a<0,b<0;由二次函数图象可知,a>0,b<0. 故D 选项错误.故本题应选C.5. 抛物线y=x 2+mx+n 可以由抛物线y=x 2向上平移2个单位,再向左平移3个单位得到,则mn 值为( )A .6B .12C .54D .66 【答案】D .【解析】试题解析:抛物线y=x2向上平移2个单位,再向左平移3个单位得:y=(x+3)2+2= x2+6x+9+2=x2+6x+11=x2+mx+n∴m=6,n=11∴mn=6×11=66.故选D.考点:二次函数图象与几何变换.6.如图,将长为的铁丝首尾相接围成半径为的扇形,则扇形A. B. C. D.【答案】B【解析】【分析】根据扇形的面积公式S扇形=×弧长×半径求出即可.【详解】由题意知,弧长=14-2×2=10cm,扇形的面积是×10×2=10cm2,故选B.【点睛】本题考查了扇形的面积公式的应用,能够正确运用扇形的面积公式进行计算是解题的关键.7.如图,直线y=kx+b交坐标轴于A(-3,0)、B(0,5)两点,则不等式-kx-b <0的解集为()A. x>-3 B. x<-3 C. x>3 D. x<3【答案】A【解析】求﹣kx﹣b<0的解集,即为kx+b>0,就是求函数值大于0时,x的取值范围为:当y>0时,x>﹣3.故选:A.8.对于函数y=﹣,下列说法错误的是()A.它的图象分布在第二、四象限B.它的图象与直线y=x无交点C.当x>0时,y的值随x的增大而增大D.当x<0时,y的值随x的增大而减小【答案】D【解析】【分析】根据反比例函数y=(k≠0)的图象是双曲线;当k>0,双曲线的两支分别位于第一、第三象限,在每一象限内y随x的增大而减小;当k<0,双曲线的两支分别位于第二、第四象限,在每一象限内y随x的增大而增大进行解答.【详解】∵k=-6<0,∴双曲线的两支分别位于第二、第四象限,在每一象限内y随x的增大而增大,∴当x<0时,y的值随x的增大而减小,错误.故选D.【点睛】此题主要考查了反比例函数的性质,关键是掌握反比例函数图象的性质.注意:反比例函数的图象与坐标轴没有交点.9.如图,点A、B、P在⊙O上,且∠APB=50°。

小学数学-有答案-新人教版五年级(下)第三周周测数学试卷

小学数学-有答案-新人教版五年级(下)第三周周测数学试卷

小学数学-有答案-新人教版五年级(下)第三周周测数学试卷一、解答题(共8小题,满分24分)1. 一个数的倍数的个数是________的,最小的倍数是________,________最大的倍数。

因数的个数是________的,其中最小的因数是________,最大的因数是________.2. 既是2的倍数,又是5的倍数的最小两位数是多少?最大两位数又是多少呢?3. 在4×5=20中,________和________是20的因数,________是4和5的倍数。

4. 24的因数有________.5. 50以内8的倍数有________.6. 2的倍数的特征:________;5的倍数的特征:________;3的倍数的特征:________.既是2又是5的倍数的特征:________.7. 最小的偶数是________,最小奇数是________.8. 被减数比减数多2.8,比差多5.2,被减数是________.二、判断题.(5分)48是6的倍数。

________.(判断对错)在13÷4=3...1中,13是4的倍数。

________.(判断对错)因为0.4×6=2.4所以2.4是0.6的倍数。

________.(判断对错)因为3×6=18,所以18是倍数,3和6是因数。

________.(判断对错)1是任何自然数的因数。

________.(判断对错)三、选择题.(每题2.5分,共10分)如果13能被a整除,那么a()A.只能是l3B.只能是lC.是l3或17.5能()A.整除3B.被3整除C.被3除尽1.85的1.4倍加上4.5除9的商,和是多少?列式是()A.1.85×1.4+4.5÷9B.1.85×1.4+9÷4.5C.1.85×(1.4+4.5)÷9D.9÷(1.85×1.4+4.5)一个三角形的面积是18平方分米,底是6分米,高是()A.13分米B.6分米C.6平方分米四、计算题.(27分)解方程,(1)x÷8.6=4.05;(2)45.54÷x=3.6.简便计算。

2012年语文版九年级(上)语文第三周测试卷

2012年语文版九年级(上)语文第三周测试卷

九年级上册语文第三周测试卷第Ⅰ卷(选择题共51分)一、(18分,每小题3分)1.下列对加点字的注音,有错的—项是A.自省(xǐng)冠者五六人(guàn)一蹴而就(cù)。

B.寝衽(rân)庖丁解牛(páo)绳纆(mò)C.祗辱于奴隶之手(zhǐ)食马者(sì)才美不外见(xiàn)D.几死者数矣(jī)莅临(wâi)汤熨(tàng wâi)2、下列词语中,有错别字的一项是A、孀妻弱子残年遗力帝感其诚B、死者相藉哗然而骇旦旦有是C、见贤思齐任重到远成人之美D、舍生取义无非马者己所不欲,勿施于人3、下列短语的意思,解释不正确的一项是A、得我欤:得到我的支持吗?B、用精至也:精神专一,到了极点。

C、执鞭之士:低微的官职。

D、其真无马耶?:难道真的没有(千里)马吗?4、下面句中空白处,依次填入的词语最恰当的一项是台湾漫画家蔡志忠说:“如果拿橘子来比喻人生,一种橘子大而酸,一种橘子小而甜,一些人(),()。

而我(),()。

”A.拿到大的就会抱怨酸拿到甜的就会抱怨小拿到了小橘子就会庆幸它是甜的拿到酸橘子就会感谢它是大的B.拿到了小橘子就会庆幸它是甜的拿到酸橘子就会感谢它是大的拿到大的就会抱怨酸拿到甜的就会抱怨小C.拿到大的就会抱怨酸拿到了小橘子就会庆幸它是甜的拿到甜的就会抱怨小拿到酸橘子就会感谢它是大的D.拿到甜的就会抱怨小拿到酸橘子就会感谢它是大的拿到大的就会抱怨酸拿到了小橘子就会庆幸它是甜的5、将下列句子组成语段,顺序排列正确的一项是①可以说,想像力应用多少是评价一个人智力高低的标准之一。

②人的大脑具有四个功能部位:感受区、贮存区、判断区和想像区。

③想像力是人类独有的才能,是人类智慧的生命线。

④人们运用想像区功能的机会少,一般人仅仅应用了自己想像力的15%。

⑤优秀的想像力对于一个杰出人才来说是必需的。

A.②④③①⑤B.⑤③②①④C.③⑤②④①D.④⑤①②③6、下列句子,有语病的一项是A.自古以来,无数诗人咏唱过游子的思家之情。

九上语文周测第三周(解析版)

九上语文周测第三周(解析版)

九上语文周测(第三周)(对应内容:《醉翁亭记》、语法:复句<一>、《敬业与乐业》、写作:紧扣观点论证)一、积累与应用(44分)1.根据拼音写出汉字,或给加点字注音。

(6分)用心灵贴近自然,是欣赏自然之美的mìjué。

春天,花朵鲜妍明媚,一如笑靥.;夏天,凉风拂.过荷池,心湖也荡起涟漪;秋天,芦苇在风中摇yè,飘散漫天的絮语;冬季,山岭树木银妆素裹,巍峨清秀,险俊俏超逸。

用心灵贴近自然,四季不老,人生不羁。

(1)根据拼音写汉字:mìjué摇yè(2)给加点字注音:笑靥.拂.过(3)找出上面文段中的两个错别字,并订正。

改成改成【参考答案】(1)秘诀曳(2)yèfú(3)妆装俊峻2.默写古诗文。

(10分)(1)知之者不如好之者,。

(《雍也》)(2)用志不分,。

(《庄子·达生》)(3),,欲与天公试比高。

(毛泽东《沁园春·雪》)(4)为什么我的眼里常含泪水,。

(艾青《我爱这土地》)(5)但愿人长久,。

(苏轼《水调歌头》)(6)欧阳修的的《醉翁亭记》中,“,”两句是全文的核心句,也为下文写景抒情定下了感情基调。

(7)岳阳楼上题有“杜少陵五言绝唱,范希文两字关情”,下联中的“范希文两字关情”赞的是范仲淹在《岳阳楼记》中抒写的“,”的远大理想和政治抱负。

【参考答案】(1)好之者不如乐之者(2)乃凝于神(3)山舞银蛇,原驰蜡象(4)因为我对这土地爱得深沉(5)露从今夜白(6)醉翁之意不在酒,在乎山水之间也(7)先天下之忧而忧,后天下之乐而乐3.下列加点词语使用正确..的一项是()(3分)A.老王为人热情,无论遇见谁都要拉着别人嘘寒问暖,强聒不舍....,大家都很喜欢他。

B.学习语文一定要学会在文章中断章取义....,品词析句。

C.环境污染日趋严重,食品安全更令人担忧,这两个问题相得益彰....,令各级政府倍感肩上的担子沉重。

小学数学-有答案-新人教版四年级(上)第三次周测数学试卷

小学数学-有答案-新人教版四年级(上)第三次周测数学试卷

新人教版四年级(上)第三次周测数学试卷一、知识乐园.1. 从右边起,每________个数位分一级,个级的数位有________;万级包括的计数单位有________.2. 五亿零四百万九千是________位数,其中“5”“4”“9”分别在________位、________位和________位,这个数写作________,省略万后面的尾数是________.3. 一个数四舍后所得的近似数是45万,这个数最大是________,这个数最小是________.4.5. 1公顷指的是边长为________米的正方形土地的面积。

1平方千米指的是边长为________米正方形土地的面积。

1平方千米=________公顷=________平方米。

6. 一个大型长方形园林,长2000米,宽1200米。

它的面积为2400000________,合240________.7. 把序号填在横线里。

________是直线,________是射线,________是线段。

8. 钟面上9时整,时针和分针成________角;钟面上________时整,时针和分针成平角。

9. 你认为,过一点可以画________条直线,过两点可以画________条直线。

10. 1周角=________平角=________直角1平角=________直角。

11. 一个锐角和一个直角可以组成一个________角。

二、精挑细选出真知.我们用的三角板上有一个________,两个________;我们戴的红领巾上有一个________,两个________.A、锐角B、直角C、钝角D、平角E、周角。

________>________>________>________>________A、锐角B、直角C、钝角D、平角E、周角。

从3:00走到3:15,分针转动了()度。

A.15B.60C.90D.120E.180二、在括号里填上合适的单位名称.在横线上填上合适的单位名称北京故宫是世界上最大的宫殿,占地面积约72________.地球表面积大约是5亿________.一间教室的面积大约是50________.学校操场占地约1________.“鸟巢”的占地面积大约是20________.我国的领土面积约为960万________.四、“实践操作”显身手.过A点画一条射线,然后在这条射线上截取一段2厘米长的线段。

小学数学-有答案-苏教版六年级(上)第三周周测数学试卷

小学数学-有答案-苏教版六年级(上)第三周周测数学试卷

苏教版六年级(上)第三周周测数学试卷一、填空.(19分,每空1分)1. 一个长方体的长是6分米,宽是5分米,高是3分米,它的所有棱长和是________,表面积是________,体积是________.2. 焊接一个正方体框架共用去铁丝96厘米,这个正方体框架棱长是________厘米,表面积是________平方厘米,体积是________立方厘米。

3. 长方体和正方体都有________个面,________个顶点,________条棱。

4. 在一个长方体中,相对的面________,相对的棱________.5. 在括号里填上合适的单位名称。

一台冰箱的容积约是150________ 文具盒体积大约是180________篮球场的占地面积约是500________ 1瓶牛奶的净含量大约是200________.6. 操场上男生和女生共80人,女生比男生的5倍少4人,男生有________人,女生有________人。

7. 一个长10厘米,宽6厘米,高5厘米的长方体木块,可以切割成________个棱长2厘米的正方体木块。

8. 一个长方体表面积是100平方厘米,把它从中间锯开,正好是两个一样的小正方体,每个小正方体的表面积是________平方厘米。

二、计算三、判断.(5分,每题1分)一个正方体的棱长扩大4倍,它的表面积扩大8倍。

________(判断对错)体积相等的长方体,表面积一定相等。

________.(判断对错)正方体是特殊的长方体。

________.(判断对错)从一个体积是30立方厘米的长方体木块中,挖掉1立方厘米的小块后,表面积变小。

________.(判断对错)体积的计算方法跟容积的计算方法相同。

________.(判断对错)四、计算下面长方体和正方体的表面积和体积.(8分)计算下面长方体和正方体的表面积和体积。

五、应用题.(40分,每题5分)丝带捆扎一种长、宽、高分别是30厘米、20厘米、25厘米的礼品盒(如图),接头处长25厘米,要捆扎这种礼品盒需要准备多少分米的丝带比较合理。

三年级数学上册第三周周测卷

三年级数学上册第三周周测卷

三年级数学上册第三周周测卷一、判断题。

1.每件衣服钉5个扣子,149个扣子能钉30件衣服。

()2.410÷7的商的末尾一定有一个0。

()3.被除数末尾没有0,商的末尾也一定没有0。

()4.一根电线长160米,截去相等的5段后还剩5米,每段电线长多少米?列式为160-5÷5。

()5.验算算式134÷3=44……2的方法是44×3+2=134。

()6.406÷+34=41,表示的数是7。

()7.319÷4≈80,是把319看作320来估算。

()8.小胖3分钟跑180米,小巧4分钟跑200米,小巧跑得快些。

()9.2□7÷7的商一定是两位数。

()10.三位数除以一位数,商不一定是三位数。

()二、选择题。

1.()×6<55,括号里最大可以填()。

A.8B.9C.72.如果一个数乘3得270,那么这个数乘4得()。

A12 B 360 C903.王老师买一种笔用去128元,买一种球用去117元。

他买的是()。

A钢笔17支,羽毛球30个B圆珠笔25支,羽毛球30个C钢笔16支,皮球13个D圆珠笔24支,皮球14个4.学校买了4盒钢笔,每盒8支,一共用去288元,每支钢笔多少元?列式不正确的是()。

A288÷4×8 B288÷(4×8) C288÷4÷85.56□÷7,要使商的末尾为零,□里最大可填()。

A5 B6 C7 D86.32加上128乘8的积,和是多少?正确的列式是()。

A(32+123)×8 B32+125÷8 C32+128×87.3个人5小时生产零件150个,算式150÷5表示()。

A.1人1小时生产零件多少个B.3人1小时生产零件多少个C.5人1小时生产零件多少个8.有一串四色珠子,每种颜色颗数相等,珠子数量在90~110之间,这串珠子不可能是()颗。

九年级人教版数学第三周周测卷

九年级人教版数学第三周周测卷

九年级人教版数学第三周周测卷一、选择题:(共10题,每题3分,共30分)1.抛物线y=-(x+2)2-3的顶点坐标是().A.(2,-3);B.(-2,3);C.(2,3);D.(-2,-3)2. 将抛物线向左平移2个单位后,得到的抛物线的解析式是A.B.C.D.3、下列二次函数中,经过点(0,1)的是( )A.y = (x − 2)2 + 1 B.y = (x + 2)2 + 1C.y = (x − 2)2 − 3 D.y = (x + 2)2 − 54、抛物线不具有的性质是()A.开口向下;B.对称轴是轴;C.当>0时,随的增大而减小;D.函数有最小值5、抛物线的顶点坐标是A.(1,0)B.(-1,0)C.(-2,1)D.(2,-1)6、直线y=x-1的图像经过象限是( )A.第一、二、三象限B.第一、二、四象限C.第二、三、四象限D.第一、三、四象限7、由二次函数,可知()A.其图象的开口向下B.其图象的对称轴为直线C.其最小值为1 D.当时,y随x的增大而增大8、关于反比例函数的图象,下列说法正确的是()A.必经过点(1,1)B.两个分支分布在第二、四象限C.两个分支关于x轴成轴对称D.两个分支关于原点成中心对称9、抛物线可以由抛物线平移得到,则下列平移过程正确的是( )A.先向左平移2个单位,再向上平移3个单位B.先向左平移2个单位,再向下平移3个单位C.先向右平移2个单位,再向下平移3个单位D.先向右平移2个单位,再向上平移3个单位10、下列四个函数图象中,当x<0时,函数值y随自变量x的增大而减小的是()二、填空题(每题4分,共20分).11、把抛物线的图像向y轴正向平移5个单位,得到抛物线;12、把抛物线向下平移2个单位,得到抛物线。

13、二次函数的图象开口,当>0时,随的增大而;14、抛物线的顶点是,对称轴是,最值y= 。

15、把抛物线向右平移2个单位,再向下平移3个单位得到抛物线。

小学数学-有答案-苏教版六年级(上)第3周周测数学试卷

小学数学-有答案-苏教版六年级(上)第3周周测数学试卷

苏教版六年级(上)第3周周测数学试卷一、填空1. 一根铁丝长24厘米,将它焊接成一个宽和高都是1厘米的长方体框架,这个长方体框架的长是________厘米。

2. 用棱长1厘米的小正方体,拼成一个较大的正方体,至少需要________个小正方体。

3. 一个正方体的表面积是84平方分米,占地面积是________平方分米。

4. 做一个无盖的长方体金鱼缸,长和宽都是0.6米,高是0.4米,至少要玻璃________平方米。

5. 一个长方体的棱长和是36厘米,从一个顶点出发的三条棱的长度和是________厘米。

6. 如图是一个正方体的展开图,和3相对的面是________.二、解决问题如图,有一个长5分米、宽和高都是3分米的长方体硬纸箱,如果用绳子将箱子横着捆两道,长着捆一道,打结处共用2分米。

一共要用绳子多长?学校礼堂的门口有8级台阶,每级台阶长6米,宽0.4米,高0.2米。

艺术节学校准备给礼堂门口的台阶铺上红地毯,至少需要买多少平方米的红地毯?影剧院门口有5根长方体柱子,高8米,底面是边长0.4米的正方形,①这些柱子的占地面积是多少?②如果给这些柱子的四周涂上油漆,按每千克油漆可涂4平方米计算,需要多少千克油漆?一个长方体纸箱,高1.5米,它的底面是边长6分米的正方形。

做10个这样的纸箱至少需要多少平方米的硬纸板?一根长为2米的通风管,横截面是边长为2分米的正方形,制作4根这样的通风管至少需要铁皮多少平方分米?一个实验室长12米,宽8米,高4米。

要粉刷实验室的天花板和四面墙壁,除去门窗和黑板的面积28.4平方米,平均每平方米用石灰0.2千克,一共需要石灰多少千克?将下面的长方体切成两个完全一样的小长方体,使这两个小长方体的表面积之和最小,你来画一画,并算出一个小长方体的表面积。

把一块体积是8立方分米的正方体钢坯锻造成横截面积是2平方厘米的长方体钢材,锻成的钢材长________厘米。

一个长方体的,如果高增加3厘米,就变成棱长为8厘米的正方体。

高三上学期语文周测(三)教师版

高三上学期语文周测(三)教师版

高三上学期语文周测(三)教师版1. 阅读下面的文言文,完成以下小题。

韩、赵相难。

韩索兵于魏曰:“愿得借师以伐赵。

”魏文侯曰:“寡人与赵兄弟,不敢文侯以讲于己也,皆朝魏。

西门豹为邺令,而辞乎魏文侯。

文侯曰:“子往矣,必就子之功,而成子之名。

”西门豹曰:“敢问就功成名,亦有术乎?”文侯曰:“有之。

夫乡邑老者而先受坐之士,子入而问其贤良之士而师事之,求其好掩人之美而扬人之丑者而参.验之。

夫物多相类而非也,幽莠之幼也似禾,骊牛之黄也似虎,白骨疑象,武夫类玉,此皆似之而非者也。

”文侯与虞人期猎。

是日,饮酒乐,天雨。

文侯将出,左右曰:今日饮酒乐天又雨公将焉之文侯曰吾与虞人期猎虽乐岂可不一会期哉乃往身自罢之魏于是乎始强魏文侯与田子方饮酒而称乐。

文侯曰:“钟声不比乎,左高。

”田子方笑。

文侯曰:“奚笑?”子方曰:“臣闻之,君明则乐官,不明则乐音。

今君审.于声,臣恐君之聋于官也。

”文侯曰:“善,敬.闻命。

”魏公叔痤为魏将,而与韩、赵战浍北,禽乐祚。

魏王说,迎郊,以赏田百万禄之。

公叔痤反走,再拜辞曰:“夫使士卒不崩,直而不倚,挠拣而不辟者,此吴起余教也,臣不能为也。

前脉形地之险阻,决利害之备,使三军之士不迷惑者,巴宁、爨襄之力也。

悬赏罚于前,使民昭然信之于后者,王之明法也。

见敌之可也鼓之,不敢怠倦者,臣也。

王特为臣之右手不倦赏臣,何也?若以臣之有功,臣何力之有乎?”王曰:“善。

”于是索昊起之后,赐之田二十万。

巴宁、爨襄田各十万。

王曰:“公叔岂非长者..哉!既为寡人胜强敌矣,又不遗贤者之后,不掩能士之迹。

公叔何可无益乎?”故又与田四十万,加之百万之上,使百四十万。

故《老子》曰:“圣人无积,既以为人,己愈有;既以与人,已愈多。

”公叔当之矣。

(节选自《战国策•魏策》)(1)下列对文中画虚线句子的断句,正确的一项是( )A. 今日饮酒乐/天又雨/公将焉之/文侯曰/吾与虞人期猎虽乐/岂可不一会期哉/乃往身/自罢之/魏于是乎始强/B. 今日饮酒乐/天又雨/公将焉之/文侯曰/吾与虞人期猎/虽乐/岂可不一会期哉/乃往/身自罢之/魏于是乎始强/C. 今日饮酒乐/天又雨/公将焉之/文侯曰/吾与虞人期猎/虽乐/岂可不一会期哉/乃往身/自罢之/魏于是乎始强/D. 今日饮酒乐/天又雨/公将焉之/文侯曰/吾与虞人期猎虽乐/岂可不一会期哉/乃往/身自罢之/魏于是乎始强/(2)下列对文中加点的词语及相关内容的解说,不正确的一项是( )A. 参验之的“参”指“检验、验证”,与《劝学》中“君子博学而日参省乎己”的“参”相同。

三年级上册语文试题第三周达标测试卷 人教部编版

三年级上册语文试题第三周达标测试卷 人教部编版
单靠“新鲜事记下来,摒弃那些假话套话空话,写出自己的真情实感,篇幅可长可短,并要求运用积累的成语、名言警句等,定期检查点评,选择优秀篇目在班里朗读或展出。这样,即巩固了所学的材料,又锻炼了学生的写作能力,同时还培养了学生的观察能力、思维能力等等,达到“一石多鸟”的效果。
要练说,得练听。听是说的前提,听得准确,才有条件正确模仿,才能不断地掌握高一级水平的语言。我在教学中,注意听说结合,训练幼儿听的能力,课堂上,我特别重视教师的语言,我对幼儿说话,注意声音清楚,高低起伏,抑扬有致,富有吸引力,这样能引起幼儿的注意。当我发现有的幼儿不专心听别人发言时,就随时表扬那些静听的幼儿,或是让他重复别人说过的内容,抓住教育时机,要求他们专心听,用心记。平时我还通过各种趣味活动,培养幼儿边听边记,边听边想,边听边说的能力,如听词对词,听词句说意思,听句子辩正误,听故事讲述故事,听谜语猜谜底,听智力故事,动脑筋,出主意,听儿歌上句,接儿歌下句等,这样幼儿学得生动活泼,轻松愉快,既训练了听的能力,强化了记忆,又发展了思维,为说打下了基础。
“师”之概念,大体是从先秦时期的“师长、师傅、先生”而来。其中“师傅”更早则意指春秋时国君的老师。《说文解字》中有注曰:“师教人以道者之称也”。“师”之含义,现在泛指从事教育工作或是传授知识技术也或是某方面有特长值得学习者。“老师”的原意并非由“老”而形容“师”。“老”在旧语义中也是一种尊称,隐喻年长且学识渊博者。“老”“师”连用最初见于《史记》,有“荀卿最为老师”之说法。慢慢“老师”之说也不再有年龄的限制,老少皆可适用。只是司马迁笔下的“老师”当然不是今日意义上的“教师”,其只是“老”和“师”的复合构词,所表达的含义多指对知识渊博者的一种尊称,虽能从其身上学以“道”,但其不一定是知识的传播者。今天看来,“教师”的必要条件不光是拥有知识,更重于传播知识。

讯飞中学八年级9月第三周周测含答案完美版

讯飞中学八年级9月第三周周测含答案完美版

讯飞中学八年级9月第三周周测一、选择题(本大题共4小题,共40分)1.把多项式3m(x-y)-2(y-x)2分解因式的结果是()A.(x-y)(3m-2x-2y)B.(x-y)(3m-2x+2y)C.(x-y)(3m+2x-2y)D.(y-x)(3m+2x-2y)2.若(x-1)(x+3)=x2+mx+n,则m+n=()A.-1B.-2C.-3D.23.如果四边形内的一个点到四条边的距离相等,那么这个四边形一定有()A.一组邻边相等B.一组对边平行C.两组对边分别相等D.两组对边的和相等4.将下列多项式分解因式后,结果含有相同因式的是()①16x5-x;②(x-1)2-4(x-1)+4;③(x+1)4-4x(x+1)2+4x2;④-4x2-1+4x.A.①②B.③④C.①④D.②③二、填空题(本大题共2小题,共20分)5.如图,△ABC中,∠C=90°,BD平分∠ABC,DC=4,AB=10,则△DAB的面积为 ______ .6.符号叫做二阶行列式,规定它的运算法则为=ad-bc,例如=1×4-2×3=-2.那么,根据阅读材料,化简= ______ .三、解答题(本大题共2小题,共40分)7.已知多项式(x2+px+q)(x2-3x+2)的结果中不含x3项和x2项,求p和q的值.8.如图,在△ABC中,AC=BC,∠C=90°,AD是△ABC的角平分线,DE⊥AB,垂足为E.(1)已知CD=4cm,求AC的长;(2)求证:AB=AC+CD.讯飞中学八年级9月第三周周测答案和解析【答案】1.B2.A3.D4.C5.206.4a+127.解:∵(x2+px+q)(x2-3x+2)=x4-3x3+2x2+px3-3px2+2px+qx2-3qx+2q=x4-(3-p)x3+(2-3p+q)x2+2px-3qx+2q由多项式(x2+px+q)(x2-3x+2)的结果中不含x3项和x2项,∴3-p=0,2-3p+q=0,解得:p=3,q=.8.解:(1)∵AD是△ABC的角平分线,DC⊥AC,DE⊥AB,∴DE=CD=4cm,又∵AC=BC,∴∠B=∠BAC,又∵∠C=90°,∴∠B=∠BDE=45°,∴BE=DE=4cm.在等腰直角三角形BDE中,由勾股定理得,BD=cm,∴AC=BC=CD+BD=4+(cm).(2)∵AD是△ABC的角平分线,DC⊥AC,DE⊥AB,∴∠ADE=∠ADC,∴AC=AE,又∵BE=DE=CD,∴AB=AE+BE=AC+CD.【解析】1. 解:3m(x-y)-2(y-x)2,=3m(x-y)-2(x-y)2,=(x-y)(3m-2x+2y).故选B.根据互为相反数的两数的平方相等,把(y-x)2写成(x-y)2,然后提取公因式(x-y),整理即可.本题主要考查提公因式法分解因式,转化为相同底数是求解的关键.2. 解:已知等式整理得:(x-1)(x+3)=x2+2x-3=x2+mx+n,∴m=2,n=-3,则m+n=2-3=-1.故选A已知等式左边利用多项式乘以多项式法则计算,再利用多项式相等的条件求出m与n的值,即可求出m+n的值.此题考查了多项式乘多项式,熟练掌握运算法则是解本题的关键.3. 解:依照题意,画出图形,如图所示.∵如果四边形内的一个点到四条边的距离相等,∴四边形ABCD为⊙O的外切四边形,∴AE=AN,DN=DM,CM=CF,BF=BE,∵AD=AN+DN,BC=BF+CF,AB=AE+BE,CD=CM+DM,∴AD+BC=AB+CD.故选D.由四边形内的一个点到四条边的距离相等,可得出该四边形为圆外切四边形,画出图形,根据切线的性质即可得出各组相等的线段,根据线段间的关系即可得出结论.本题考查了角平分线的性质以及切线的性质,解题的关键是得出该四边形为圆外切四边形.本题属于中档题,难度不大,解决该题型题目时,根据角平分线的性质确定该四边形为圆外切四边形是关键.4. 解:①16x5-x=x(16x4-1)=x(4x2+1)(4x2-1)=x(4x2+1)(2x-1)(2x+1);②(x-1)2-4(x-1)+4=(x-1-2)2=(x-3)2;③(x+1)4-4x(x+1)2+4x2=[(x+1)2-2x]2=(x2+1)2;④-4x2-1+4x=-(4x2+1-4x)=-(2x-1)2.∴结果含有相同因式的是①④.故选:C.①首先提取x,进而利用平方差公式进行分解即可;②直接利用完全平方公式分解因式即可;③直接利用完全平方公式分解因式即可;④首先提取“-”,再利用完全平方公式分解因式即可;此题主要考查了提取公因式法以及公式法分解因式,熟练应用公式法分解因式是解题关键.5. 解:如图,过点D作DE⊥AB于点E,∵BD平分∠ABC,又∵DE⊥AB,DC⊥BC∴DE=DC=4∴△ABD的面积=•AB•DE=×10×4=20故答案为20.过点D作DE⊥AB于点E,根据角的平分线上的点到角的两边的距离相等,得DE=DC=4,再根据三角形的面积计算公式得出△ABD的面积.本题主要考查了角平分线的性质与三角形的面积计算公式.作出辅助线是正确解答本题的关键.6. 解:原式=(a+2)(a+3)-(a-2)(a+3)=a2+5a+6-a2-a+6=4a+12,故答案为:4a+12.利用题中的新定义计算即可得到结果.此题考查了整式的加减,熟练掌握运算法则是解本题的关键.7.首先利用多项式乘法去括号,进而利用多项式(x2+px+q)(x2-3x+2)的结果中不含x3项和x2项,进而得出两项的系数为0,进而得出答案.此题主要考查了多项式乘法,正确利用多项式乘法去括号得出是解题关键.8. (1)根据角平分线的性质可知CD=DE=4cm,由于∠C=90°,故∠B=∠BDE=45°,△BDE是等腰直角三角形,由勾股定理得可得BD,AC的值.(2)由(1)可知:△ACD≌△AED,AC=AE,BE=DE=CD,故AB=AE+BE=AC+CD.。

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单元测试(9上Unit3) 姓名____________学号_________一、听力(20分)( )1. Which sign are the two speakers talking about?( )2. What are the two speakers going to buy in the shop?A. B. C.( )3. How can the boy get to the hospital?( )4. How did the girl feel?( )5. What will Jenny do first?A. Wash the clothes.B. Visit pandas.C. Do her homework.( )6. What did the boy wear?A. A red jumper.B. A red sweater.C. Blue jeans.( )7. How much does one glass of lemonade cost?A.$20.B. $3.C.$8.( )8. Which month is it now?A. June.B. May.C. April.( )9. What does the boy advise the girl to do?A. To do some exercise.B. To listen to some light music.C. To have a good sleep.( )10. Why does the girl vote for Max?A. Because he is clever.B. Because he is funny.C. Because he is handsome.第二部分听对话和短文回答问题(每小题1分,计10分)( )11. What does Tony's father do?A. A doctor.B. A designer.C. A teacher.( )12. Where does Tony's sister work?A. In a big hospital.B. In a village.C. In a town.How to protect the environment ?( )14. A. 500 B. 1,500 C. 2,000( )15. A. Break the rule of the lawB. Stop pouring dirty water into the South LakeC. Plant more trees听第二篇短文,回答第16-20小题。

( )16. What kind of person was Mr Smith?A. Forgetful.B. Careful.C. Gentle.( )17. Who always helped Mr Smith?A. His boss.B. His mother.C. His wife.( )18. Why did Mr Smith keep the name of the beach a secret?A. Because he wouldn't take his children there.B. Because he wanted to make the trip more interesting for his children.C. Because he wanted to save money.( )19. How would Mr Smith and his children go to the beach?A. By train.B. By car.C. By plane.( )20. What did Mr Smith forget at first?A. The paper written by his wife.B. The place where he left his children.C. The name of the beach.二、单项填空(20分)( )1. Bob says _______ he will make a speech in front of the class.A.whenB.thatC.howD.where( )2.Amy told me she _________ to visit her grandparents this weekend.A.will goB.wentC.is goingD.would go( )3.We never doubt _________ he is honest.A.thatB.whetherC.ifD.B and C( )4.---I think his advice is worth __________ of carefully. --- I agree _______ you.A.thinking, withB.thinking, toC.to think, withD.to think, to ( )5.Sometimes I don’t know __________ my problems.A.what to deal withB.how to deal withC.what to do withD.B and C ( )6.Our teacher are strict __________ us ____________ our homework.A.with, onB.in, withC.with, inD.with, with( )7.She can hardly say anything, __________?A.can sheB.can’t sheC.need sheD.does she( )8.--- I sometimes feel stressed, can you give me some advice?--- ___________ share your worries with your parents?A.Why not youB.What aboutC.Why not.D.Why don’t me( )9.Mrs. Zhao went _______ after she finished _______her work last Monday.A.shop, doingB.shopping, doingC.shopping, to doD.shop, to do ( )10.One of my friends is __________ fat because he often eats _________ at night.A.too much; much tooB.too much; too manyC.much too; too muchD.much too; too many( )11. His mother spends much time ________ housework every day.A.inB.withC.to doD.on( )12.---Jim, you look sleepy. What’s wrong with you?--- I _________ to write a report last night.A.looked upB.stayed outC.stayed upD.took up( )13.You may _________ trouble if you stay out late without _________ your parents.A.get out of; tellB.get into; tellingC.get into; tellD.get out of; telling ( )14.Don’t be crazy _________ computer games, or your parents will be worried.A.atB.onC.aboutD.for( )15.He found ________ hard to ride a bike when he was young.A.thatB.itC.it’sD.that was( )16.---Why not buy an old car first if you don’t have enough money for a new one?--- That’s a good ________.A.adviceB.questionC.situationD.suggestion( )17.Can you please spend some time ________ it _______us?A.explain; toB.explaining; toC.to explain; forD.explaining; for ( )18.Whenever I see the birds, I will ________ flying in the sky.A.think upB.dream ofC.work onD.pick up( )19.Drivers shouldn’t be allowed_________ after drinking, or they will bread the law.A.driveB.drivingC.to driveD.to be driven( )20.---I feel so tired. --- __________.A.Lucky you!B.You’d better work harder.C.CongratulationsD.Why don’t you stop and have a rest?三、完形填空(15分)A Food Chain(食物链)All living things on the earth need other living things to live with.Nothing lives 1 .Most animals must live in a group,and even a plant grows 2 together with others of the 3 kind.Sometimes one living thing kills another,one eats and the other is 4 .Each kind of life eats another kind of life in order to live,and together they form a food chain.Some food chains are simple,while others are not.But all food chains begin with 5 ,and all food chains become 6 up if one of the links disappears.All life needs sunlight to live on.But only plants can use sunlight directly.7are ‘factories’.They make food 8 sunlight,water and things in the soil and air.Plants feed all living 9 .Animals can only use the sun’s energy after it has been changed into food by plants.Some animals feed directly 10 plants,and others eat smaller animals.Meat-eating animals are 11 eating plants indirectly.What about human beings? We are members of many food chains.We eat wheat,rice,vegetables,fruits and 12 .We also eat meat and drink milk.But men often break up the food chains.They kill wild animals.They also make rivers,lakes and seas 13 .When these rivers,1akes and seas are polluted,the fish in them 14 be eaten.If men eat the fish,they will 15 strange diseases.Each form of life is linked to all others.Breaking the links puts all life in danger.( )1.A.alone B.on C.in D.lonely( )2.A.close B.nearly C.nearby D.closer( )3.A.very B.same C.so D.different( )4.A.broken B.eaten C.given D.taken( )5.A.the air B.the star C.the sun D.the moon( )6.A.gone B.taken C.put D.broken( )7.A.Birds B.Living things C.Plants D.Animals( )8.A.from B.out C.by D.with( )9.A.things B.thing C.animals D.persons( )10.A.in B.for C.on D.to( )11.A.just now B.only C.not D.just( )12.A.also B.so C.others D.so on( )13.A.blue B.dirty C.clean D.clear( )14.A.won’t B.will C.can D.can’t( )15.A.carry B.bring C.get D.take四、阅读理解(每小题2分,满分30分)AEveryone needs friends. We all like to feel close to someone. It is nice to have a friend to talk, laugh and do things with. Surely, there are times when we need to be alone. We don’t always want people around. But we would feel lonely if we never had a friend.No two people are just the same. Sometimes friends don’t get along well. That doesn’t mean that they no longer like each other. Most of the time they will make up and go on being friends.Sometimes friends move away. Then we feel very sad. We miss them very much. But we call them and write to them. It could be that we would never see them again. And we can make new friends. It is surprising to find out how much we like new people when we get to know them.Families sometimes name their children after a close friend. Many people are named after men or women who have been friendly to people in a town. Some libraries are named this way. So are some schools. We think of these people when we go to these places.There is more good news for people who have friends. They live longer than people who don’t. Why? It could be that they are happier. Being happy helps you stay well. Or it could be just knowing that someone cares. If someone cares about you, you take better care of yourself.( )1. The first paragraph tells us ________.A.none needs friends B.we always need friends around us C.making friends is the need in people's life D.we need to be alone( )2. Which of the following is what the writer doesn't say in the passage?A.People are happy when their friends leave them.B.People may never see their friends after their friends move away.C.People can know their friends in different ways.D.People like their friends very much if they get to know them.( )3. Which of the following is the most probable place people name after friendly people?A.A house.B.A room.C.A library.D.A village.( )4. If people have friends, they would live longer, because ________.A.they feel happier and healthier B.they get a lot of help from their friendsC.they take better care of themselves D.both A and C( )5. This passage tells us ________.A.that people are all friends B.that people need friendsC.how to get to know friends D.how to name a place(B)Do you want to live a happier, less stressful(有压力的) life? Try laughing for no reason at all. That’s how millions of people start their day at Laughter(笑声) Clubs around the world and many doctors now think that having a good laugh might be one of the best ways to stay healthy.The first Laughter Club was started in Mumbai, India, in 1995 by Dr. Madan Kataria.“Young children laugh about 300 times a day. Adults laugh between 7 and 15 times a day,” says Dr. Kataria. “Everyone is naturally good at laughing —it’s the common language. We want people to feel happy with their lives.” There are now more than 500 Laughter Clubs in India and over 1,300 in the world.Many doctors are also interested in the effects(效果) of laughter on our health. According to a 5-year study at the UCLA School of Medicine in California, with laughing there is less stress in the body. Laughter improves our health against illness by about 40%.So what happens at a Laughter Club? I went along to my nearest club in South London to find out. I was quite nervous at the beginning of the class, to be honest, I wasn’t interested in laughingwith a group of strangers, and I was worried about looking silly. Our laughter teacher told us to clap our hands and say “ho ho ho, ha ha ha” while looking at each other. However, our bodies can’t tell the difference between real laughter and unreal laughter, so they still produce the same healthy effects.Surprisingly, it works! After ten minutes everybody in the room was laughing for real and some people just couldn’t stop! At the end of the class I was surprised by how relaxed and comfortable I felt. So if you’re under stress, then start laughing. You might be v ery pleased with the results.( )6. The first Laughter Club was started in __________.A.India B.America C.Britain D.China( )7. How many Laughter Clubs are there in the world today?A.Over 300. B.Over 500. C.Over 800. D.Over 1,300.( )8. How did the writer feel at the beginning of the class?A.Surprised. B.Pleased. C.Nervous. D.Tired.( )9. When did the people in the club begin to laugh for real?A.After ten minutes. B.After ten hours.C.After ten seconds. D.After ten days.( )10. The article mainly tells us __________.A.young children laugh much more often than adults in a dayB.laughing is one of the best ways to stay healthyC.many doctors are also interested in the effects of laughter on our healthD.real laughter and unreal laughter are both good for healthCAs a teenager, I had a lot of anger (愤怒) and was not good at communicating with my parents.One day, when I was getting ready for school, my mother handed me a T-shirt. It was my father's, not mine. At that time, I was taller and stronger than my father, so when I put the T-shirt on, I felt like I was being choked (窒息) in it! I realized that it was a small mistake by my mother, but the feeling of being choked made me very angry. Without thinking, I took out my anger on my mother. I ripped (撕破) the T-shirt!Later, my mother told my father what had happened, “See what your son has done.” Instead of scolding me, my father asked my mother to repair the T-shirt. He then wore it to work the next day.Later when my mother told me about what my father had done, I felt ashamed of my behaviour. He spent the whole day wearing a ripped T-shirt. At the same time, I was filled with great admiration for my father. His kindness taught me a life lesson I would never forget. On that day, I made a decision that I would never let anger beat me.( )11. Why did the writer feel bad in the T-shirt?A. Because it smelt terrible.B. Because he hated the colour.C. Because it was too small for him.D. Because it was made of cheap material.( )12. What did the writer do to the T-shirt?A. He ripped it.B. He washed it.C. He threw it away.D. He gave it to his father.( )13. What does the underlined word “scolding” in Paragraph 3 mean in Chinese?A. 遗忘B. 责骂C. 提醒D. 同情( )14. What did the writer think of his father?A. He was kind.B. He was strict.C. He didn't care about him.D. He was not good at communicating.( )15. The passage mainly tells us that we should ______.A. control our angerB. not make mistakesC. care about our parentsD. not spend much money on clothes五、任务型阅读,一空一词(10分)Have you ever wondered what an American high school is really like? This article will describe a typical (典型的) high school and its students.A typical American high school has several large buildings and enough space for about 1,500 students. Every student is given a locker. When students first arrive at school, they go straight to their lockers to put away or get their textbooks and to hang up their outdoor clothes. As American textbooks are expensive, students would like to loan(租借) instead of buying them. Students must pay back if they lost any of them.American students have different types of school transport. They usually take a yellow school bus or walk to school if they live close enough. Sometimes their parents drive them to s chool. When they turn 16 years of age, most take a free driving class at school for one term. If students earn passing grades in the class and also pass their state driver’s exam, they can begin driving themselves to school.Each day, students take six or seven classes. They must take science, math, English and social studies. They can choose art, homemaking, fashion design and other classes. In some schools students are required to take one or more of the following special classes: health education, physical education or foreign language studies. Students move to different classrooms for each subject. This is because each teacher has their own classroom. There is a five-minute break between classes, to give the students the time to hurry to their next class.The regular school day usually ends early in the afternoon. After school more than half of the students take part in after-school activities. These activities include sports-especially football, basketball, baseball and soccer or clubs, such as yearbook, speech, school newspaper, photograph or student government. Title: 1 in an American High SchoolOutline DetailsIntroduction ◇It gives an overview of a typical American high school and its 2 . Lockers and textbooks ◇Every student has a locker for textbooks and 3 clothes.◇They like loaning textbooks better than 4 them. 5 transport ◇Students usually go to school by bus or on foot. Sometimes their 6 send them to school by car.◇They can 7 themselves to school when they are over 16 and have passedthe required tests. Classes and classrooms ◇Students have to take main classes, elective classes and sometimes one or more 8 classes. ◇They go to 9 classrooms for each subject.After-schoo l activities [ ◇After school most of the students 10 in their favourite activities, including sports and clubs.6._________7._________8._________9. _________ 10. __________六、阅读表达(共5小题;每小题2分,满分10分) No More Than 6 Word s.Thumbs Down to Texting(屈指发短信)Do you have a mobile phone? Do you send text messages to your friends and family?Text messaging or‘texting’is becoming very popular .But ,scientists have discovered that texting can give us problems with our hands .Be careful! Too much texting can cause swelling in our thumbs .Our thumbs were not made for pushing small buttons ,over and over .Scientists call this problem RSI .We spoke to a doctor called Harriet Wilson ,who treats many sick people with RSI .She says we need to see how much time we are spending in typing text messages .If we are spending more than 10~15 minutes at once ,we could have problems in the future .As mobile phones develop ,they are getting smaller with buttons closer together .Texting with a smaller phone is worse than using a larger phone with bigger buttons .Using a computer keyboard and playing video games can cause the same problem .So more and more people could find themselves with RSI .Among them ,most are university students and teenagers ,as they do not know the risks of spending so much time using computer ,video games and mobile phones .If wedon’t do something about this,too many young people could grow up in terrible pain.1.What is becoming very popular now?________________________________________________________________2.Does the word‘once’mean‘one time’in the second passage?________________________________________________________________3.What kind of people are easier to have the problem of RSI?________________________________________________________________4.What can also cause RSI except texting?________________________________________________________________5.Which is easier to cause the problem of RSI,using smaller mobile phones or larger ones?________________________________________________________________七、词汇(15分)1 Aunt Liu treats everyone with kindness and _______ __(温暖).2.Thank you for your ______ _(suggest).They are quite useful and valuable.3.My little brother is ______ _(dress)in blue every day by Mum.4.I want to know if it __________ __(snow)in a few days. Children are looking forward tomaking snowmen.5.Daniel and Simon have had deep _______________(友谊) since they came to this school.6.The ______________(起因) of the fire hasn’t been found out.7.Today students have very heavy _______________(课业) and they have no time to play.8.The house will look a little bigger if its walls _______________(paint) blue or white .9.The little girl had no choice but _____________ (sell) matches to make money.10.This picture is very ___________ __ (value) to him.11.Kitty often worries about _____________ (get) fat.12.Have you ever imagined ______________(live) on Mars someday in the future?13.It’s too noisy here, and I can _____________(hard) hear you. Could you speak loudly?14._____________(offer) some coffee to the guests politely.15.Her dream is _________________ (get) high marks in the final exam.八、短文填空(10分)Ken was sitting by himself on a bench in the park. He was not very happy. He did not have a laptop (便携式电脑), and he really needed one. His old computer did not w 1 very well for all his college projects.Then Ken saw an old lady sitting on a 2 bench. She had a new laptop next to her on the bench. “Why does she need a laptop?”he thought.“She is an old lady. She does not need it for anything i (3).”Ken thought about all his important college work. He really n (4) that laptop. He decided to take it and thought the old lady would probably not know. Suddenly, a dog started barking loudly. The old lady looked to see w (5) was happening. Ken took this perfect c (6) —he took the laptop and walked away quickly.The next day, Ken tried to use the laptop for a project, b (7) he felt terrible. He couldn't even open it because he felt so bad about stealing it. During the following days, he could not work hard on his projects at all.Ken finally d (8) he couldn't keep it anymore. He went back to the p (9), hoping to find the old lady and return her laptop. But she did not show up. On his way home, Ken gave the laptop to a community centre for children. He r (10) that when you steal something, it loses its value. Only the real owners can use their things happily.1. 2. 3. 4. 5.6. 7. 8. 9. 10.九、书面表达(20分)针对目前中学生压力大的心理状态,你们班就“中学生的烦恼”进行了一次调查。

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