东方外校年秋第三次月考

2011—2012学年度上学期九年级数学第三次月考试卷一、选择题（每小题3分，共30分）1、下列根式中不是最简二次根式的是（ ）.A.10B. 8C. 6D. 22、如果12x x ，是一元二次方程0362=--x x 的两个实数根，那么12x x +的值是（ ） .A.-6B. -3C. 6D. 33、把ab=cd 写成比例线段，写错的是( ).A.b dc a = B.c b ad = C.d a b c = D.dcb a = 4、若关于x 的一元二次方程2210kx x --=有两个不相等的实数根，则k 的取值范围是( ).A ．1k >- B. 1k >-且0k ≠ C.1k < D. 1k <且0k ≠ 5、下列说法正确的是( ).A.所有的矩形都相似B.所有的菱形都相似C.对应边的比都相等的两个多边形相似D.所有的正方形都相似6、实数a ，b 在数轴上的位置如图所示，那么化简22)(b b a --的结果是（ ）.A. aB. b a -2C.a -D.b a +-27、已知原点是抛物线y=(m+1)x 2的最高点，则m 的范围是( ). A. m ＜－1 B. m ＜l C. m ＞－1 D. m ＞－2 8、如图所示，在△ABC 中，DE ∥BC ，若AD ＝1，DB ＝2，则BCDE的值为( ). A ．32 B ．41 C ．31D ．21 b a第8题图 第9题图 9、如图所示，在△ABC 中D 为AC 边上一点，若∠DBC ＝∠A ，6=BC ，AC ＝3，则CD 长为( ).A ．1B ．23 C ．2 D ．25 10、如图，边长都是1的正方形和正三角形，其一边在同一水平线上，三角形沿该水平线自左向右匀速穿过正方形．设穿过的时间为t ，正方形与三角形重叠部分的面积为S （空白部分），那么S 关于t 的函数大致图象为（ ）第Ⅱ卷（非选择题，共90分）二、填空题（每小题3分，共24分） 11、方程220x x -=的解为 . 12、()()=--2223 .13、若点A （ａ，3）与点B （-4, b ）关于坐标原点对称，则a+b= . 14、 函数3x y -=的自变量x 的取值范围是_________. 15、在同一时刻，身高1.6米的小强在阳光下的影长为0.8米，一棵大树的影长为4.8米，则该树的高度为 米 .StOＡＢ．StOＣ．S tOＤ．StO16、若两个相似多边形对应边的比为3∶2,小多边形的面积为32 cm 2,那么大多边形的面积为_____ cm 2.17、如图，△ABC 是等边三角形，点P 是△ABC 内一点。

宁波东方外国语学校2007届高三第三次月考数学试题卷（理科）本试题分第Ⅰ卷和第Ⅱ卷两部分。

满分150分，考试时间120分钟。

请考生按规定用笔将所有试题的答案写在答题纸上。

第Ⅰ卷（共 50 分）一、选择题：本大题共10小题，每小题5分，共50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、设P 、Q 为两个非空实数集合，定义集合P+Q={a+b ∣a ∈P,b ∈Q}，},5,2,0{=P 若}6,2,1{=Q 则P+Q 中元素的个数是（ ）A ．9B ．8C ．7D ．62、已知某等差数列共有10项，其奇数项之和为15，偶数项之和为30，则其公差为（ ） A.5 B.4 C. 3 D. 23、复数1ii+在复平面内对应的点到原点的距离为（ ）A.12 B.24、为了得到函数sin cos y x x =-的图象，只要将函数sin cos y x x =+的图象按向量a 平移，则a等于（ ）A.(,0)2πB. (,0)2π-C. (,0)4πD. (,0)4π- 5、已知函数()2sin (0)f x x ωω=>在区间,34ππ⎡⎤-⎢⎥⎣⎦上的最小值是2-，则ω的最小值为（ ） A ．23 B ．32C ．2D ．36、已知函数⎪⎩⎪⎨⎧≥<-+-=)1( )1(27)12()(x a x a x a x f x 在（－∞，+∞）上单调递减，则a 的取值范围是（ ）A ．（0,1）B ．（0,21） C ．31[,)82 D ．3[,1)87、在等差数列{}n a 中，若3813a a a C ++=，则其前n 项和n S 的值等于5C 的是（ ） A.15SB.17S C .7S D.8S8、若任取x 1，x 2∈[a ，b ]，且x 1≠x 2，都有[]12121()()()22x x f f x f x +>+成立，则称f (x ) 是[a ，b ]上的上凸函数。

2021-2021学年七年级数学下学期第三次月考试题本卷贰O贰贰年贰月捌日编写；出题人：令狐学复；欧阳化语；令狐理总。

考生需要知：本套试卷满分是为120分，考试时间是是为120分钟．第一卷选择题〔一共30分〕一、选择题：〔每一小题3分，一共计30分〕1．的相反数是( )A． B． C．- D.2．假设，那么以下不等式中不成立的是( )A. B. C. D．3．在以下图形中，可以由一个根本图形平移得到的是( )4．由方程组，可得出x与y的关系是( )A． B． C． D.5．把不等式2x -1> x+2的解集在数轴上表示正确的选项是( )6．点A在x轴上，且到坐标原点的间隔为2，那么点A的坐标为( )A.(-2,0)B.(2,0)C.(2,0)或者(-2,0)D.(0,-2)或者(O,2)7．估计的值在( )8．不等式x -7<3x -2的负整数解有( )9．某校开展社团活动，参加活动的同学要分组活动，假设每组7人，那么余3人；假设每组8人，那么少5人；求课外活动小组的人数x和分成的组数y，可列方程组为( )A． B． C． D.10．如图，AB∥CD, EF∥CD，那么以下结论中一定正确的选项是( )A．∠BCD= ∠DCE; B. ∠ABC+∠BCE+∠CEF=360;C. ∠BCE+∠DCE=∠ABC+∠BCD; D．∠ABC+∠BCE -∠CEF=180.第二卷非选择题〔一共90分〕二、填空题：〔每一小题3分，一共30分〕11．把方程2x+3y=5改写成用含x的式子表示y的形式，那么y= .12. 假设3x -5有算术平方根，那么x需要满足的条件是 .x一2y=6的一个解是，那么a的值是 .14.平面直角坐标系中，点A〔2a-3，-2〕在第四象限内，那么a的取值范围是 .15．计算： = .16. 解不等式：的解集为 .17.如图，CD⊥AB于点D，过点D引射线DM，∠BDM的度数比∠CDM的度数的3倍多10，那么∠CDM= .18.在一次智力测验中有20道选择题，评分HY为：对l题给5分，错1题扣2分，不答题不给分也不扣分，张强有1道题末答，假如总分才不会低于70分，那么他至少答对道题．19．∠ABC=70，点D为BC边上一点，过点D作DP//AB，假设∠PBD=∠ABC，那么∠DPB= . 20．如图，AB∥CD, AC∥BD, CE平分∠ACD，交BD于点E，点F在CD的延长线上，且∠BEF=∠CEF，假设∠DEF=∠EDF，那么∠A的度数为.三、解答题〔一共60分〕21．〔此题7分〕按要求解二元一次方程组：用代入法解：②用加减法解：22．〔此题7分〕如图，在8x8的网格中，建立平面直角坐标系，三角形三个顶点A(1，-3)、B(-l，-2)、C(3，-1)，将三角形ABC进展平移，使点A平移后的对应点A1的坐标为(0，1)，点B的对应点为B1，点C的对应点为C1，得到对应的三角形A1B1C1．(1)画出三角形ABC；(2)画出平移后的三角形A1B1C1；(3)连接BB1、CC1，请直接写出四边形BCC1B1的面积．23．〔此题8分〕关于x，y方程组，(1)假设此方程组的解满足x>y，求m的取值范围；(2)假设此方程组的解满足x=2y．求y-x的算术平方根．24．〔此题8分〕如图1，AD//BC，∠B=∠D=100，E、F在AD上，且满足∠ACE=∠ACB，CF平分∠DCE．(1)求∠ACF的度数；(2)如图2，假设∠CFD=∠BAC，求∠AEC的度数．25．〔此题10分〕“六一〞期间，小明家进展新家装修，在装修客厅时，购进彩色地砖和单色地砖一共100块，一共花费5600元.彩色地砖的单价是80元／块，单色地砖的单价是40元／块．(1)两种型号的地砖各采购了多少块？(2)假如厨房也要铺设这两种型号的地砖一共60块，且采购地砖的费用不超过3200元，那么彩色地砖最多能采购多少块？26．〔此题10分〕如图1，点P为直线AB、CD内部一点，连接PE、PF，∠P=∠BEP+∠PFD．(1)求证：AB∥CD；(2)如图2，点G为AB上一点，连接GP并延长交CD于点H，假设∠PHF=∠EPF，过点G作GK⊥EP于点K，求证：∠PFH十∠PGK=90；(3)如图3，在(2)的条件下，PQ平分∠EPF，连接QH，∠FPH=∠PFH+∠EPQ，当∠PHQ=2∠GPE时，∠QHC=∠QPF-10，求∠Q的度数．27．〔此题10分〕如图1，在平面直角坐标系中，点O为坐标原点，点A〔a，0〕、B(b，O)分别在x轴正半轴和y轴正半轴上，且，点P从原点出发以每秒2个单位长度的速度沿x轴正半轴方向运动．(1)求点A、B的坐标；(2)连接PB，设三角形ABP的面积为s，点P的运动时间是为t，请用含t的式子表示s，并直接写出t的取值范围；(3)在(2)的条件下，将线段OB沿x轴正方向平移，使点O与点A重合，点B的对应点为点D，连接BD，将线段PB沿x轴正方向平移，使点B与点D重合，点P的对应点为点Q，取DQ的中点H，是否存在t的值，使三角形ABP的面积等于三角形ADH的面积？假设存在，求出t的值；假设不存在，请说明理由.2021-2021学年度下学期七年级第三次月考试题数学试题参考答案一、选择题：题号 1 2 3 4 5 6 7 8 9 10 答案CBADCCCBAD二、填空题：题号111213141516171819 20答案325x - 35≥x -1023>a 415- 20≤x 201635或者75108 三、解答题：21．解：〔1〕由①得，x y -=5③．．．．．．．．．．．1＇ 把③代入②得，852=-+x x 解得，3=x ．．．．．．．．．．．1＇把3=x 代入③得，2=y ．．．．．．．．．．．1＇∴这个二元一次方程组的解为⎩⎨⎧==23y x ．．．．．．．．．．．1＇〔2〕①×3得，2169=-y x ③②×2得，4464=+y x ④ 由③+④得，6513=x ．．．．．．．．．．．1＇解得，5=x把5=x 代入①得，7253=-⨯y 解得，4=y ．．．．．．．．．．．1＇∴这个二元一次方程组的解为⎩⎨⎧==45y x ．．．．．．．．．．．1＇22．〔1〕画图正确．．．．．．．．．．3＇〔2〕画图正确．．．．．．．．．．．3＇ (3)17．．．．．．．．．．．1＇23. 解：(1)由①+②得，3-=m x ③．．．．．．．．．．．1＇把③代入①得，42--=m y ．．．．．．．．．．．1＇ ∵y x >，即，423-->-m m ．．．．．．．．．．．1＇解得，31->m ．．．．．．．．．．．1＇ (2)由〔1〕得，3-=m x ，42--=m y ∵y x 2=∴)42(23--=-m m 解得，1-=m ．．．．．．．．．．．1＇∴这个二元一次方程组的解为⎩⎨⎧-=-=24y x ，．．．．．．．．．．．1＇∴2=-x y ，．．．．．．．．．．．1＇ ∴x y -的算术平方根为2．．．．．．．．．．．1＇ 24.(1)解：∵AD ∥BC ，∠D=100° ∴∠D+∠BCD=180°．．．．．．．．．．．1＇ ∴∠BCD=80°．．．．．．．．．．．1＇ ∵CF 平分∠DCE∴∠ECF=∠DCF ．．．．．．．．．．．1＇∵∠ACE=∠ACB ，∠ACE+∠ACB+∠ECF+∠DCF=80°∴∠ACF=∠ACE+∠FCE=40°．．．．．．．．．．．1＇ (2)∵∠A=100°，∠BCD=80° ∴∠A+∠BCD=180° ∴AB ∥CD ．．．．．．．．．．．1＇∴∠BAC=∠ACD ，∠AEC+∠BCE=180° ∵∠CFD=BAC∴∠CFD=∠ACD ．．．．．．．．．．．1＇ ∵AD ∥BC ∴∠CFD=∠BCF ∴∠BCF=∠ACD∴∠ACB+∠ACF =∠FCD+∠ACF ∴∠ACB=∠DCF∴∠ACB=∠ACE=∠ECF=∠FCD=20°．．．．．．．．．．．1＇ ∴∠BCE=40°∴∠AEC=140°．．．．．．．．．．．1＇25.(1)解：设彩色地砖采购了x 块，单色地砖采购了y 块⎩⎨⎧=+=+56004080100y x y x ．．．．．．．．．．．3＇ 解得⎩⎨⎧==6040y x ．．．．．．．．．．．2＇答：彩色地砖采购了40块，单色地砖采购了60块． (2)解：设彩色地砖能采购a 块3200)60(4080≤-+a a ．．．．．．．．．．．3＇ M解得20 a ．．．．．．．．．．．1＇答：彩色地砖最多能采购20块．．．．．．．．．．．1＇ 26. (1)证明：过点P 作PM ∥AB ∴∠BEP=APE ．．．．．．．．．．．1＇ ∵∠EPF=∠BEP+∠PFD∴∠MPF=∠PFD ．．．．．．．．．．．1＇ ∴PM ∥CD∴AB ∥CD ．．．．．．．．．．．1＇ 〔2〕∵PM ∥AB ∴∠MPG=∠PHF ∵∠PHF=∠EPF ∴∠MPG=∠EPF∴∠MPF=∠GPK ．．．．．．．．．．．1＇ ∵MP ∥CD ∴∠MPF=∠∠PFH∴∠PFH=∠GPK ．．．．．．．．．．．1＇ ∵GK ⊥PE ∴∠GKE=90° 过点P 作PN ∥KG∴∠NPK=∠GKE=90°，∠KGP=∠GPN ∴∠GPK+∠GPN=90°∴∠PFH+∠PGK=90°．．．．．．．．．．．1＇MNM〔3〕∵PQ 平分∠EPF设∴∠EPQ=∠QPF=α ∵∠QHC=∠QPF -10°∴∠QHC=10-α°∵PM ∥CD∴设∠MPF=∠PFH=β，∠MPH+∠PHF=180° ∵12 ∠FPH=∠PFH+∠EPQ∴12 ∠FPH =β+α∴∠FPH=2α+2β．．．．．．．．．．．1＇∴∠MPH=2α+3β∵∠PHC=∠EPF=2α∴2α+3β+2α=180°．．．．．．．．．．．1＇∵∠QHC=α-10°∴∠PHQ=2α-〔α-10°〕=α+10°∵∠PHQ=2∠GPE∴∠GPE=12 ∠PHQ=12 α+5°由〔2〕得，∠EPG=∠MPF即 12 α+5°=β∴α=30°，β=20°．．．．．．．．．．．1＇∴∠QHP=40°过点Q 作QK ∥GH ∴∠KQP=GPQ=50°，∠KQH=∠PHQ=40°M K∴∠Q=10°．．．．．．．．．．．1＇27.〔1〕解：∵0)22(522=+-+--b a b a ∴⎩⎨⎧=+-=--022052b a b a ．．．．．．．．．．．1＇解得⎩⎨⎧==34b a ．．．．．．．．．．．1＇ ∴A 〔4，0〕，B 〔0，3〕．．．．．．．．．．．1＇〔2〕由题意得，OP=t 2，①当P 在线段OA 上时，AP=4-t 2∴S=12 ×AP ×OB=12×〔4-t 2〕×3=63+-t 〔20<≤t 〕．．．．．．．．．．．2＇ ②当P 在线段OA 的延长线上时，AP=t 2-4∴S=12 ×AP ×OB=12×〔t 2-4〕×3=63-t 〔2>t 〕．．．．．．．．．．．1＇ 〔3〕由题意得，BD=OA ，BD=PQ ，OB=AD∴OA=PQ∵点H 为DQ 的中点∴DH=HQ过点A 作AM ⊥DQ 于点M∴S △AHQ =12 HQ ×AM ，S △ADH =12DH ×AM ∴S △AHQ = S △ADH ．．．．．．．．．．．1＇①当P 在线段OA 上时，∴OA-PA=PQ-PA即 OP=AQ∵OB ∥AD∴∠DAQ=90°∴S △ADQ =S △OBP∴S △ADH =12 S △ADQ =12S △BOP ．．．．．．．．．．．1＇ 即 63+-t =12 ×t 2×3×1234=t ．．．．．．．．．．．1＇ ②当P 在线段OA 的延长线上时∴OA+PA=PQ+PA即 OP=AQ∵OB ∥AD∴∠DAQ=90°∴S △ADQ =S △OBP∴S △ADH =12 S △ADQ =12S △BOP 即 63-t =12 ×t 2×3×124=t ．．．．．．．．．．．1＇本卷贰O 贰贰年贰月捌日编写； 出题人：令狐学复；欧阳化语；令狐理总。

２０２２　︵四︶　密封线内不要答题 密封线外不写考号 姓名学 校姓 名班 级考 号名校调研系列卷·九年级第三次月考试卷　化学（人教版）题　号一二三四五总　分得　分可能用到的相对原子质量：Ｈ—１　Ｚｎ—６５得分评卷人一、单项选择题（每小题１分，共１０分）１．下列碳单质的各种用途中，利用了化学性质的是（ ）Ａ．金刚石制作钻头Ｂ．石墨制作电极Ｃ．碳冶炼金属Ｄ．活性炭作冰箱除味剂２．四川广汉三星堆出土的“青铜神树”让世人惊艳，史前文明或许存在。

青铜属于（ ）Ａ．合金Ｂ．氧化物Ｃ．单质Ｄ．化合物３．抗疫一线人员需用到大量７５％酒精消毒液。

向抗疫一线运输的７５％酒精消毒液的包装箱上需张贴的标志是（ ）４．物质的性质决定物质的用途。

下列有关物质的用途和性质不一致的是（ ）Ａ．铜导电性好，制作导线Ｂ．钨熔点高，制作灯泡的灯丝Ｃ．铝延展性好，制成铝箔Ｄ．银导热性好，制作装饰品５．“低碳生活，节能减排”是当今世界的主流，下列做法不符合该环保倡议的是（ ）Ａ．乘坐公交车或骑自行车出行Ｂ．开发清洁能源Ｃ．养成随手关闭电器电源的习惯Ｄ．注意卫生，提倡使用一次性筷子６．下列反应中，属于置换反应的是（ ）Ａ．Ｃｕ２（ＯＨ）２ＣＯ３ △２ＣｕＯ＋ＣＯ２↑＋Ｈ２ＯＢ．ＳＯ３＋Ｈ２ ＯＨ２ＳＯ４Ｃ．Ｈ２＋ＣｕＯ △Ｃｕ＋Ｈ２ＯＤ．ＦｅＣｌ３ ＋３ＮａＯＨＦｅ（ＯＨ）３↓＋３ＮａＣｌ７．对下列词语的有关化学原理解释不合理的是（ ）Ａ．火上浇油———隔绝空气Ｂ．风助火威———为燃烧提供足够多的氧气Ｃ．釜底抽薪———清除可燃物Ｄ．钻木取火———使温度达到可燃物的着火点８．如图是探究铁钉锈蚀条件的实验，实验后得出的以下结论错误的是（ ）Ａ．装置①和②探究铁钉生锈时氧气是否参与反应Ｂ．装置②和③探究铁钉生锈是否与水有关Ｃ．装置③中的铁钉不易生锈Ｄ．装置④中的铁钉生锈最严重九年·化学（省命题）　（四）９．碳及其化合物的转化关系如图所示。

东方市第六小学四年级上册月考试卷时间：70分钟 总分：100 得分：一、看拼音，写词语。

（10分）x í gu àn j ī ch ǔ zh ù s ù qu ē f á m ì m ìji ān k ǔ ch á yuâ zh ī zh ū y ïu dì l ù ch ãng二、给加点字选择正确的读音，用“ ” 画出来。

（6分）枕．头（zh ěn zh ěng ）毕竟．(jìn j ìng)狂．奔（ ku áng hu áng ） 胭．脂 （y ān y īn ） 积累．（l ěi l âi ） 沉重．(zh îng ch ïng) 三、把下列成语补充完整，再选择合适的成语填空。

(4+3分)温文尔（ ） 著作等（ ） 远（ ）重洋 满腹经（ ） （ ）瓜烂熟 勤能补（ ） 若有所（ ） （ ）起直追 (1)要想深入理解一篇课文，非得把这篇文章读得（ ）不可。

(2)巴金爷爷一生勤于创作，可谓是（ ）。

(3)生物学家童第周的事迹让我明白，头脑思维不灵活不要紧（ ）也一样能成功。

四、写出下列词语的反义词。

（3分）沉重——（ ） 危险——（ ） 巍峨——（ ） 五、给加点的字选择正确的解释，只填序号。

(6分)1、 顾： ①照顾；②拜访；③回头看；④商店里前来买东西的人 三顾．茅庐（ ） 奋不顾．身（ ） 环顾．四周（ ）顾．客盈门（ ） 2．寄：①通过邮局递送；②托付，寄托；③依附别人，依附别的地方； （1）爸爸把钱寄．给我。

（ ） （2）在车站，我们把东西放在了寄．存处。

（ ） 六、按要求写句子。

（12分）1、 几个月过去了，哥伦布的船队终于胜利返航了。

缩句：2、哥伦布又惊又喜地问道：“你们是怎么活下来的？”改为转述句： 3、生活快捷方便。

东方外校春季高二年级3月月考英语试题第一部分：听力(共两节，满分30分)第一节（共5小题；每小题1.5分,满分7.5分）1.what’s the man’s present job?A. A driver.B. A waiter.C. A businessman.2.What are the two speakers talking about?A. Some beautiful love songs .B. Songs of the man;s first love.C. A latest record of love songs.3.What will the women tell the man?A.Her company’s name.B. Her new address .C.Her telephone number.4.Where are the two speakers most probably?A. At home .B. At the airport.C.On the plane5.What’s the man going to buy for Peter?A.Ricky Martin CD.B.A Rolling Stone CD.C.A classical music CD.第二节（共15小题；每小题1.5分,满分22.5分）听第6段材料，回答第6、7. 8题。

6.What’s the man doing ?A..Returning some booksB..Looking for a bookC..Writing a research paper7 What does the woman tell the man to do .?A. To return the due booksB..To refer to the card listC.. To use the computer8.What do you think of the woman’s attitude toward the man according to their conversation?A.Patient .B.Strict .C.Straightforward听第7段材料，回答第9至11题。

东方国际学校月考语文试卷（含答案）下载温馨提示:该文档是我店铺精心编制而成，希望大家下载以后，能够帮助大家解决实际的问题。

文档下载后可定制随意修改，请根据实际需要进行相应的调整和使用，谢谢!并且，本店铺为大家提供各种各样类型的实用资料，如教育随笔、日记赏析、句子摘抄、古诗大全、经典美文、话题作文、工作总结、词语解析、文案摘录、其他资料等等，如想了解不同资料格式和写法，敬请关注!Download tips: This document is carefully compiled by theeditor. I hope that after you download them,they can help yousolve practical problems. The document can be customized andmodified after downloading,please adjust and use it according toactual needs, thank you!In addition, our shop provides you with various types ofpractical materials,such as educational essays, diaryappreciation,sentence excerpts,ancient poems,classic articles,topic composition,work summary,word parsing,copy excerpts,other materials and so on,want to know different data formats andwriting methods,please pay attention!专业课原理概述部分一、选择题（每题1分，共5分）1. 下列哪个字是形声字？A. 明B. 月C. 早D. 林2. 《红楼梦》的作者是谁？A. 吴承恩B. 曹雪芹C. 施耐庵D. 罗贯中3. 下列哪个选项是正确的诗句对仗？A. 春风又绿江南岸，明月何时照我还B. 大漠孤烟直，长河落日圆C. 白日依山尽，黄河入海流D. 两个黄鹂鸣翠柳，一行白鹭上青天4. 下列哪个选项是正确的成语用法？A. 画蛇添足B. 杯弓蛇影C. 狐假虎威D. 指鹿为马5. 下列哪个选项是正确的句子结构？A. 我昨天去了图书馆。

咸宁东方外校 2018年秋九年级月考（一）数学 试卷总分 120 分，时间 120 分钟 出卷人：张剑锋一、精心选一选（每题 3 分，共 24 分）1、以下方程是一元二次方程（ ）A 、 x 2 y 1B 、 2x x 12x 23 C 、 3x1 4 D 、 x 22 0x．把方程x 2-4x-6=0 配方，化为（ x+m ）2=n 的形式应为（ ）．2（A ）（ x-4 ）2=6 （ B ）（ x-2 ）2=4 （C ）（ x- 2）2=10（ D ）（ x-2）2=03. 使分式 x 25x 6的值等于零的 x 值是 （）x 1（A ）6（B ） -1 （C ）-1 或 6 （D ）-64.已知 2y 2+y-2 的值为 3，则 4y 2+2y+1 的值为（）A ．10B ．11C ．10 或 11D ．3 或 115. 假如对于 x 的一元二次方程 x 2+px+q=0 的两根分别为 x 1=3，x 2=1，?那么这个一元二次方程是（）．（ A ）x 2+3x+4=0 （B ）x 2+4x-3= 0 （C ）x 2-4x+3=0 （D ）x 2+3x-4=06．已知对于 x 的一元二次方程（ m-1）x 2+x+m 2+2m-3=0 的一个根为 0，则 m 的值为（ ） A ．1 B ．-3C ．1 或-3D ．不等于 1 的随意实数7．有一人患了流感，经过两轮传染后共有100 人患了流感，那么每轮传染中均匀一个人传染的人数为（）A．8 人 B．9 人 C．10 人 D．11 人8．哈尔滨市政府为了申办2018 年冬奥会，决定改良城市面貌，绿化环境，计划过两年时间，绿地面积增添44％，这两年均匀每年绿地面积的增添率是( )A. 19％B. 20％C. 21％D. 22％二、仔细填一填（每题 3 分，共 24 分）9、对于x的一元二次方程3x x2 4 的一般形式是。

10．当 x＝_时，代数式 3－ x 和－ x2 + 3x 的值互为相反数211、已知方程 x +kx+3=0的一个根是- 1，则k=,另一根为。

2020-2021学年东方中学高三英语月考试题及答案解析第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AAmid the coronavirus outbreak, the U. S. Department of Homeland Security recommends having at least a two - week supply of water and food.PotatoesShelf life：2 to 5 weeks if stored in a cool, dry, dark placeYukon Gold, red, and fingerling potatoes will last from two to three weeks. Larger white potatoes can last for three to five weeks. Sweet potatoes have about the same shelf life. Don't store them next to onions, however. The two might go together well in cooking, but raw, each gives off gases and moisture that might cause the other to spoil faster.Tea※Shelf life：6 to 12 months past "sell - by" dateDried tea leaves, whether loose (in a sealed container) or in teabags (in an unopened box) can easily last a year or more if they' re not subjected to damp or humidity. However, the tea does tend to lose flavor over time.Peanuts● Shelf life：1 to 2 monthsPeanuts in their shell, especially when kept cool and dry, are perfectly happy in the cupboard for as long as two months.Canned fruits and vegetables● Shelf life：1 to 2 years past "sell - by” dateCanningis an extremely efficient means of preserving food. Generally speaking, if canned foods aren't subjected to extreme heat, their contents should stay good for two years or more. Be aware, however, of dented cans or those with swollen tops, which may indicate the presence of bacteria inside.1. Which can go bad faster if stored with onions?A. Potatoes.B. Tea.C. Peanuts.D. Canned fruits and vegetables.2. What is special about tea?A. The flavor of tea can always remain the same.B. Tea leaves are better to be preserved in an open jar.C. Tea leaves should be kept away from the state of being wet.D. The maximum length of time that tea can be stored is 6 months.3. What may shorten the "sell - by” date of canned foods ?A. Shapes of cans.B. Categories of foods.C. Decline of the temperature.D. Exposure to high temperature.BFor fishermen and sailors in the seaside town of Shangpan in Linhai, Zhejiang province, where recently 12 stranded（搁浅的）whales were found, it is not unusual to spot whales or dolphins in the sea — they would always call them haizi, or “son of the ocean”. And if the local fishermen spot such intelligent sea creatures in need, they will save them from danger without hesitation.In the recent rescue of melon-headed whales, they tried their best to help as a 37-second video of a young man sleeping in the water holding a whale soon went viral online, with netizens applauding his constant efforts and caring heart in trying to keep the whale alive. “The melon-headed whale knew I was trying to save it and would be more cooperative and wouldn’t move.” said Lu Wenhui, a 21-year-old diver from Hangzhou Changqiao Polar Ocean Park, who held up the whale’s head so it could breathe easily. Lu had been staying in the water for 10 hours by 4 a.m. Wednesday after coming for the rescue work on Tuesday, when the stranded whales were first spotted.“Whales are mammals and need to breathe in air — that’s why I had to hold its head, to ensure it could breathe smoothly the whole time,” Lu said. The stranded whales, after the struggling of being transported, were worn out when they arrived at the fish farm and might have drowned if they were left unattended.The reason why the whales were stranded is still not clear. And these stranded whales were returned to the ocean because they are not adapted to artificial breeding environments on land.4. What do local fishermen usually do after finding haizi in danger?A. Ignore them.B. Feed them.C. Transport them.D. Protect them.5. Why does the author describe Lu’s rescue work?A. To introduce the whales in detail.B. To voice his views on the diver.C. To praise the efforts made by rescuers.D. To explain the value of the whales.6. What can we say about the melon-headed whales according to the text?A. They are rarely seen by locals.B. They are used to breathing in the sea.C. They aren’t suited to artificial surroundings.D. They are fond of swimming near the seaside.7. Which of the following can be the best title for the text?A. Melon-headed Whales Were StrandedB. Rescuers Went All out to Help WhalesC. Fishermen Transported Stranded WhalesD. Witnesses Voiced Opinions on Rescue WorkCI am a part of the Windward Robotics team known as the Omnicats, one of the many clubs offered at my school. My eight teammates and I started out by watching the robotics qualifiers and finals of Chinese teams. We used these robotics videos for inspiration and drew up mind maps of what our team wanted to do.We meet every day for two hours after school in order to build our robots. Typically, adultsoverseewhat students are building, but my school lets teens take control. It leaves room for more errors, but we're prouder of our final product.Before our first real match, a practice was offered at the actual site. My sub-team had been further along than other teams but quickly fell behind. When we arrived on that big day, I immediately felt my teammates' nervousness. Our first match was in three minutes. All of us glanced around at each other since we were not prepared at all. Our robot was still sitting in a box. Two of our teammates rushed to take the robot for an official examination as the rest of us discussed our strategy (策略).Our team captain explained that we all should try driving the robot now, while it was early in the season. She gave me the remote. I had only driven for a limited amount of time in practice so I was extremely nervous. Our autonomous code (自动代码) beganto run almost immediately after our short discussion. Despite all the drama, we ended up winning the match.Not too bad for the first match! I was so proud. I did not enjoy the pressure of driving but liked building the robot behind the scenes instead.We have transferred to a different type of robotics at the end of the semester, which involves the whole team designing one giant robot with large tools. I am a part of the electrical team now, so I make sure the motherboard(母板) can supply the robot's energy needs. We have all enjoyed the rest of the season and learned that robotics it never dull!8. What does the underlined word in paragraph 2 probably mean?A. InspectB. AdmireC. OverlookD. Assume9. Why did her teammatesfed so nervous before first match?A. Because it was really too difficult for them.B. Because they didn't prepare for it at all.C. Because they didn't know what the match would be like.D. Because they didn't make full preparations before the match.10. How did the author feel about their first robotics match?A. It was tiring but exciting.B. It was stressful but wonderful.C. It was terrible but powerful.D. It was boring but professional11. What is the best title for the text?A. A Girl Who Loves RobotsB. My First Robotics MatchC. Teamwork for RobotsD. Robotics Is Never DullDIf you could travel back in time, which period of history would you visit? It’s a great question to ask your friends, and time travel is the subject of many science fiction films. Of course, sci-fi is familiar to most of us, butwhat is cli-fi? The simple answer is climate fiction which focuses on the subject of climate change.Many of the cli-fi examples we watch tend to be disaster films. It could be solar flares (太阳耀斑), ice ages devastating (摧毁) the planet, extreme flooding swamping the earth with water, or super-storms that threaten life as we know it. While films and novels of this style are often subject to the typical images of a hero or heroine battling to save the day, what sets it apart from most sci-fi films is that the plots will often draw on apparently reasonable outcomes in the near future.Climate change and the potential threats have long been established. Some believe that the issue of climate change has even led to more fans watching films to learn more about what's happening to the world – seeing it as a form of edutainment. A study conducted by the Yale programme on Climate Change Communication tested the effects that two climate fiction novels can have on its readers and found “significant positive effects” in terms of their attitudes and beliefs towards the climate crisis – for example, understanding global warming will harm themand future generations.Most climate films are not only extremely popular action films, but also cause our fear of what some see as the approaching end of the world. This sounds bad, but according to a study conducted on 310 adults in the US, watching such scary films can help us feel more prepared and less alone in situations such as the pandemic (疫情). So, it looks like cli-fi is hereto stay – and there seem to be some benefits. Whether it’s there to educate, entertain or prepare you for a climate crisis, it might have a role to play.12. Which of the following may be the subject of cli-fi?A. Time travel.B. Global warming.C. Weather forecast.D. Economic climate.13. What can we learn about cli-fi films from paragraph 2?A. They are often about extreme natural disasters.B. They want to show that man can conquer nature.C. They usually have similar plots with sci-fi films.D. They can show the true near future of the world.14. Why is the study conducted by the Yale programme mentioned in paragraph 3?A. To prove that climate change has potential threats.B. To show that people like climate fiction novels.C. To tell that cli-fi novels have positive effects on readers.D. To explain how the climate crisis affect the human being.15. What does the writer mainly want to tell us in the last paragraph?A. Cli-fi films are very popular as action films.B. A study was conducted on 310 adults in theUS.C. The pandemic make people scared and alone.D. Cli-fi films are useful and will be here to stay.第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

咸宁东方外校秋九年级月考（二）数 学 试 卷命题人:张剑锋 时间120分钟 总分120分一、细心填一填（本大题共8题，每题3分，共24分） 1、下列计算正确的是（ ）A 、2·3＝ 6B 、2＋3＝ 6C 、8＝3 2D 、 4÷2＝2 2．下面的图形中，既是轴对称图形又是中心对称图形的是（ ）A ．B ．C ．D ．3．方程0632=--x x 配方的结果为（ ）A 、()43332=-x B 、433232=⎪⎭⎫ ⎝⎛-xC 、()1532=-x D 、415232=⎪⎭⎫ ⎝⎛-x4.5月份，“甲型H1N1流感”疫情引起了各个国家的高度重视，已知某国家第一周发现患病者有15人，后来在第2、3周新发现的病例共为60人，设第2、3周平均每周的传染率为x ，则可列出方程 ( ) A 、()601152=+x B 、15()()6011512=+++x xC 、15()601=+xD 、15+15()()6011512=+++x x5.已知xy ＜0，则y x 2化简为 （ ）A 、y xB 、y x -C 、y x -D 、y x -- 6.下列函数中，自变量x 的取值范围是x ＞2的函数是 ( ) A 、2-=x y B 、21-=x y C 、12-=x y D 、121-=x y7．如图，O 是边长为1的正△ABC 的中心，将△ABC 绕点O 逆时针方向旋转180，得△A 1B 1C 1，则△A 1B 1C 1与△ABC 重叠部分（图中阴影部分）的面积为（ ）A 3B 3C ．32 D 38.根据下面表格中的对应值，判断方程02=++c bx ax （0≠a ）的一个解x 的范围是( ) x3.223.24 3.25 3.26 02=++c bx ax -0.06-0.020.030.09A 、3＜x ＜3.22B 、3.22＜x ＜3.24C 、3.24＜x ＜3.25D 、3.25＜x ＜3.26 二、填空题（每小题3分，共24分） 9.计算：=+218___________，=-818____________10、观察分析下列数据，寻找规律：0，3，6，3，32，15，23……那么第10个数据应是______________11. 若方程()112=+-x m x m 是关于x 的一元二次方程，则m 的取值范围是____________12.已知a 、b 、c 是△ABC 的三边长，且关于x 的方程02222=++-b a cx x 有两个相等的实数根，则△ABC 是____________三角形。