广东省深圳市南山区外国语学校2020-2021学年第二学期九年级第一次模拟考试数学试卷(4月)

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南山区第二外国语(海德学校)2020-2021学年第二学期七年级期中考试数学试卷 -答案

南山区第二外国语(海德学校)2020-2021学年第二学期七年级期中考试数学试卷 -答案
解:(1)如图 1,延长 EP 交 CD 于 M, ∵AB∥CD, ∴∠AEP=∠GMP, ∵∠EPG 是△PGM 的外角, ∴∠EPG=∠PMG+∠PGC=∠AEP+∠PGC;
(2)如图 2,∵EF 平分∠PEB, ∴可设∠BEF=∠PEF=α, ∵AB∥CD, ∴∠GFE=∠BEF=α, ∴四边形 PGFE 中,∠PGF=360°﹣∠P﹣2α, ∴∠PGC=180°﹣(360°﹣∠P﹣2α)=∠P+2α﹣180°, ∵∠EFG 是△FGH 的外角, ∴∠FGH=∠EFG﹣∠EHG=α﹣∠EHG, 又∵QG 平分∠PGC, ∴∠PGC=2∠FGH, 即∠P+2α﹣180°=2(α﹣∠EHG), 整理可得,∠P+2∠EHG=180°. 故答案为:∠P+2∠EHG=180°.
19.小明骑自行车去上学,当他以往常的速度骑了一段路时,忽然想起要买某本书,于是又 折回到刚经过的一家书店,买到书后继续赶去学校.以下是他本次上学离家距离与时间 的关系示意图.根据图中提供的信息回答下列问题:
(1)小明家到学校的距离是 1500 米?书店到学校的距离是 900 米? (2)小明在书店停留了 4 分钟,本次上学途中,小明一共行驶了 2700 米。 (3)在整个上学的途中 12-14 时间段小明骑车速度最快?最快的速度是 450 米/分钟? (4)如果小明不买书,以往常的速度去学校,需要 7.5 分钟?本次上学比往常多用
2020-2021 年度第二学期七年级期中考试数学试卷
(南山第二外国语海德学校)
参考答案与试题解析
一.选择题(共 10 小题)
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广东省深圳市2020-2021学年上学期九年级英语期末试卷分类汇编:信息匹配(部分答案)

广东省深圳市2020-2021学年上学期九年级英语期末试卷分类汇编:信息匹配(部分答案)

广东省深圳市2020-2021学年上学期九年级英语期末试卷分类汇编信息匹配广东省深圳市光明区2020-2021 学年九年级上学期期末考试英语试题第三节信息匹配下面的材料A~F分别给出了六条建议。

请根据Noah、.Emelia 、Joshua、Reagan和Lily 五位同学的情况,帮助他们选择合适的建议,并在答题卡上将相应的字母编号涂黑。

(共5 小题,每小题1分)A. It can be sad when people don't believe what you say. You might think about why this has been happening. Be true to everyone. Over time, your honesty will speak for itself and people will know they can trust you.B. Tell your mom how you feel, Perhaps you both can find some time for just the two of you. Maybe each of your siblings wants the same. Be sure to share your mom—she loves every one of you!C. What exciting news for you and your sister! It shows your parents are confident with your musical talent. Talk to your parents and sister. Together, make a clear plan for the lessons. You'll do a good job.D. It's certainly possible for a person to be strong and gentle, often at the same time. If you practice kindness often, you may discover many chances to be strong and gentle at the same time,E. It's great that you want to say "thank you". Make a list of the people who do things for you. Another idea is to write thank-you notes, You may be surprised by how much a thank-you note can mean to someone!F. It's common for one to feel a little uncomfortable when he or she receives praise or attention. It shows people enjoy what you've done and they feel proud of you. You should feel proud of yourself, too\31. My parents are asking me to teach my sister piano. Any tips? ——Noah32.1 always feel strange when people clap for me. What should I do? ——Emelia33. People say I'm lying, even though Tm not. ——Joshua34.1 think I can be strong, but my friends think I'm gentle. ——Reagan35.1 have six siblings (兄弟姐妹),I want to spend time alone with my mom, but I can’t.——Lily 答案:31 — 35 CFADB广东省深圳市龙岗区2020-2021 学年九年级上学期期末考试英语试题第三节信息匹配下面的材料A-F分别介绍了六条网友回复信息, 请根据Tina, Mike,Betty, Toby和Nick的烦恼, 帮助他们选出最合适的回复, 并将其标号填入提前括号内。

2020-2021学年广东省深圳市中考模拟化学试卷(含答案)

2020-2021学年广东省深圳市中考模拟化学试卷(含答案)

2020-2021学年广东省深圳市九年级(下)第一次质检化学试卷一、单项选择题Ⅰ:(本大题共8小题,每小题1.5分,共12分。

在每小题列出的四个选项中,只有一项最符合题意。

)1.(1.5分)中华文明灿烂辉煌,在古代就有许多发明和创造。

下列叙述中不涉及到化学变化的是()A.制作石器B.烧制陶瓷C.粮食酿酒D.使用火药2.(1.5分)下列图示实验操作正确的是()A.B.C.D.3.(1.5分)下列化学符号中数字“2”表示的意义,正确的是()A.CO2:表示二氧化碳中含有2个氧原子B.N2:表示2个氮原子C.2Na:表示2个钠原子D.O2﹣:表示氧的化合价为﹣2价4.(1.5分)根据图中提供的信息判断,下列说法不正确的是()A.①③属于同种元素B.②表示的元素常见化合价为+1价C.硒元素的相对原子质量是34D.③④为稳定结构5.(1.5分)甲烷(CH4)和水反应可以制水煤气,其反应的微观示意图如图,下列叙述正确的是()A.甲烷中碳元素的质量分数为20%B.甲烷(CH4)中碳元素化合价为+4价C.反应前后分子数目不变D.该反应中,生成C和D的分子个数比为1:36.(1.5分)把一定量甲、乙、丙、丁四种物质放入一个密闭容器中,在一定条件下充分反应,测得反应前后各物质的质量如下表所示。

下列说法正确的是()物质甲乙丙丁反应前质量/g1051216反应后质量/g8530xA.反应中甲和丙的质量比为1:8B.x=0C.该反应是分解反应D.乙一定是该反应的催化剂7.(1.5分)下列说法不正确的是()A.煤的燃烧可能造成酸雨的原因是排放大量SO2B.利用肥皂水可以区分硬水和软水C.炒菜时油锅着火可用锅盖盖灭D.图书档案起火时,用干粉灭火器灭火8.(1.5分)在溶质为Cu(NO3)2、AgNO3和Al(NO3)3的溶液中加入一定量的锌粉,充分反应后过滤,得到滤渣和蓝色滤液。

下列判断正确的是()A.向滤渣中加入稀盐酸可能有气泡产生B.滤渣中一定有Ag,可能有Cu和ZnC.滤液中一定无AgNO3D.滤液中可能有四种金属离子二、单项选择题Ⅱ:(本大题共4小题,每小题2分,共8分。

2020-2021深圳市南山二外高中三年级数学下期末第一次模拟试卷(含答案)

2020-2021深圳市南山二外高中三年级数学下期末第一次模拟试卷(含答案)

2020-2021深圳市南山二外高中三年级数学下期末第一次模拟试卷(含答案)一、选择题1.已知2a ib i i+=+ ,,a b ∈R ,其中i 为虚数单位,则+a b =( ) A .-1 B .1 C .2 D .3 2.设是虚数单位,则复数(1)(12)i i -+=( )A .3+3iB .-1+3iC .3+iD .-1+i3.抛掷一枚质地均匀的硬币两次,在第一次正面向上的条件下,第二次反面向上的概率为( ) A .14B .13C .12D .234.已知a r 与b r均为单位向量,它们的夹角为60︒,那么3a b -r r 等于( )A .7B .10C .13D .45.两个实习生每人加工一个零件.加工为一等品的概率分别为23和34,两个零件是否加工为一等品相互独立,则这两个零件中恰有一个一等品的概率为A .12B .512C .14D .166.函数y ()y ()f x f x ==,的导函数的图像如图所示,则函数y ()f x =的图像可能是A .B .C .D .7.已知双曲线C :22221x y a b -= (a >0,b >0)的一条渐近线方程为52y x =,且与椭圆221123x y +=有公共焦点,则C 的方程为( ) A .221810x y -=B .22145x y -=C .22154x y -=D .22143x y -=8.某学校组织学生参加英语测试,成绩的频率分布直方图如图,数据的分组一次为[)[)[)20,40,40,60,60,80,[80,100].若低于60分的人数是15人,则该班的学生人数是( )A .45B .50C .55D .9.设双曲线22221x y a b-=(0a >,0b >)的渐近线与抛物线21y x =+相切,则该双曲线的离心率等于( ) A .3B .2C .6D .510.已知a R ∈,则“0a =”是“2()f x x ax =+是偶函数”的( ) A .充分不必要条件 B .必要不充分条件 C .充分必要条件D .既不充分也不必要条件11.已知,m n 是两条不同的直线,α,β是两个不同的平面,给出下列命题:①若m αP ,m n ⊥,则n α⊥; ②若m α⊥,n αP ,则m n ⊥;③若,m n 是异面直线,m α⊂,m βP ,n β⊂,n αP ,则αβ∥; ④若,m n 不平行,则m 与n 不可能垂直于同一平面. 其中为真命题的是( ) A .②③④B .①②③C .①③④D .①②④12.一个几何体的三视图如图所示,其中正视图是一个正三角形,俯视图是一个等腰直角三角形,则该几何体的外接球的表面积为( )A .43π B .83π C .163πD .203π二、填空题13.如图,一辆汽车在一条水平的公路上向正西行驶,到处时测得公路北侧一山顶D 在西偏北的方向上,行驶600m 后到达处,测得此山顶在西偏北的方向上,仰角为,则此山的高度________ m.14.事件,,A B C 为独立事件,若()()()111,,688P A B P B C P A B C ⋅=⋅=⋅⋅=,则()P B =_____.15.某大学为了解在校本科生对参加某项社会实践活动的意向,拟采用分层抽样的方法,从该校四个年级的本科生中抽取一个容量为300的样本进行调查.已知该校一年级、二年级、三年级、四年级的本科生人数之比为4:5:5:6,则应从一年级本科生中抽取_______名学生.16.已知函数()(ln )f x x x ax =-有两个极值点,则实数a 的取值范围是__________. 17.幂函数y=x α,当α取不同的正数时,在区间[0,1]上它们的图像是一族美丽的曲线(如图).设点A (1,0),B (0,1),连接AB ,线段AB 恰好被其中的两个幂函数y=x α,y=x β的图像三等分,即有BM=MN=NA ,那么,αβ等于_____.18.在ABC △中,角A ,B ,C 的对边分别为a ,b ,c ,若cos 1cos2cos 1cos2b C Cc B B+=+,C 是锐角,且27a =,1cos 3A =,则ABC △的面积为______. 19.在体积为9的斜三棱柱ABC —A 1B 1C 1中,S 是C 1C 上的一点,S —ABC 的体积为2,则三棱锥S —A 1B 1C 1的体积为___.20.()sin 5013=oo________________.三、解答题21.已知数列{}n a 满足1112,22n n n a a a ++==+. (1)设2nn na b =,求数列{}n b 的通项公式; (2)求数列{}n a 的前n 项和n S ; (3)记()()211422nnn n n nn c a a +-++=,求数列{}n c 的前n 项和n T .22.某小组共10人,利用假期参加义工活动,已知参加义工活动次数为1,2,3的人数分别为3,3,4,现从这10人中随机选出2人作为该组代表参加座谈会.()1设A 为事件“选出的2人参加义工活动次数之和为4”,求事件A 发生的概率; ()2设X 为选出的2人参加义工活动次数之差的绝对值,求随机变量X 的分布列和数学期望. 23.在直角坐标系xOy 中,直线l 1的参数方程为2+,,x t y kt =⎧⎨=⎩(t 为参数),直线l 2的参数方程为2,,x m m m y k =-+⎧⎪⎨=⎪⎩(为参数).设l 1与l 2的交点为P ,当k 变化时,P 的轨迹为曲线C . (1)写出C 的普通方程;(2)以坐标原点为极点,x 轴正半轴为极轴建立极坐标系,设()3:cos sin 0l ρθθ+=,M 为l 3与C 的交点,求M 的极径.24.已知函数()()2f x x 2a 1x 2alnx(a 0)=-++>.()1求()f x 的单调区间;()2若()f x 0≤在区间[]1,e 上恒成立,求实数a 的取值范围.25.随着“互联网+交通”模式的迅猛发展,“共享自行车”在很多城市相继出现。

(广东深圳卷)2022年中考数学第二次模拟考试(A4考试版)

(广东深圳卷)2022年中考数学第二次模拟考试(A4考试版)

2022年中考数学第二次模拟考试(深圳卷)(本卷共22小题,满分100分,考试用时90分钟)注意事项:1.答卷前,考生务必将自己的姓名、准考证号填写在答题卡上。

2.回答第Ⅰ卷时,选出每小题答案后,用2B 铅笔把答题卡上对应题目的答案标号涂黑。

如需改动,用橡皮擦干净后,再选涂其他答案标号。

写在本试卷上无效。

3.回答第Ⅱ卷时,将答案写在答题卡上。

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4.考试结束后,将本试卷和答题卡一并交回。

5.考试范围:中考全部内容。

第Ⅰ卷(选择题,共30分)一、选择题(本大题共10个小题,每小题3分,共30分,每小题均有四个选项,其中只有一项符合题目要求,答案涂在答题卡上)1.(2022·浙江温州·模拟预测)某零件如图所示,它的俯视图是( )A .B .C .D .2.(2022·浙江宁波·模拟预测)﹣3的相反数是( )A .3B .±3C .13D .﹣133.(2022·浙江温州·模拟预测)某小组英语听力口语考试的分数依次为:25,29,27,25,22,30,26,这组数据的中位数是( )A .27B .26C .25.5D .254.(2022年广东省肇庆市四会市九年级下学期中考数学一模)在平面直角坐标系中,点(3,2)关于x 轴对称的点的坐标为( )A. (3,2)-B. (2,3)-C. (2,3)-D. (3,2)-5.(2022年广东省珠海市文园中学九年级下学期第一次模拟)下列运算正确的是( )A. 235a a a ⋅=B. 623a a a ÷=C. 624a a -=D. ()2323ab a b -=6.(2022年广东省佛山市禅城区中考一模)将不等式组1113x x >⎧⎪⎨≤⎪⎩的解集在数轴上表示,正确的是( ) A.B. C. D.7.(广东省韶关市南雄市20212022学年九年级第一次质检)抛物线y =(x ﹣1)2﹣2的顶点坐标为( )A. (1,2)B. (1,﹣2)C. (﹣1,2)D. (﹣1,﹣2) 8.(2022·浙江·温州市瓯海区外国语学校一模)如图, 在Rt ABC 中, 90CAB ∠=, 点,A B 分别在墙面ED 和地面FD 上, 且斜边BC ∥ED , 若1,AC CBA ∠α==, 则AD 的长为 ( ).A .cos tan αα⨯B .tan cos ααC .cos tan ααD .1cos tan αα⨯ 9.(2020•菏泽)一次函数y =acx +b 与二次函数y =ax 2+bx +c 在同一平面直角坐标系中的图象可能是( )A .B .C .D .10.(2021·浙江杭州·二模)如图,在等边三角形ABC 的AC ,BC 边上分别任取一点P ,Q ,且AP =CQ ,AQ 、BP 相交于点O .下列四个结论:①若PC =2AP ,则BO =6OP ;②若BC =8,BP =7,则PC =5;③AP 2=OP •AQ ;④若AB =3,则OC 3 )A .①②④B .①③④C .②③④D .①②③第Ⅱ卷(非选择题,共70分)二、填空题(本大题共5个小题,每小题3分,共15分,答案写在答题卡上)11.(2022年广东省佛山市南海区中考一模数学)分解因式:328a a -=______.12.(2022年广东省中山市九年级下学期第一次模拟)若x 2﹣3x =﹣3,则3x 2﹣9x +7的值是 _____. 13.(2022年广东省肇庆市四会市九年级下学期中考数学一模)如图,在菱形ABCD 中,30A ∠=︒,取大于12AB 的长为半径,分别以点A ,B 为圆心作弧相交于两点,过此两点的直线交AD 边于点E (作图痕迹如图所示),连接BE ,BD ,则EBD ∠的度数为_________.14.(2022·广东·江门市新会东方红中学模拟预测)如图,在Rt △ABC ,∠B =90°,∠ACB =50°.将Rt △ABC 在平面内绕点A 逆时针旋转到△AB ′C ′的位置,连接CC ′.若AB ∥CC ′,则旋转角的度数为_____°.15.(2021·广东·市大望学校一模)如图,在平面直角坐标系xOy 中,直线1y fx =与双曲线2g y x =相交于(2,3)A 、()2,3B --两点,C 是第一象限内双曲线上一点,连接CA 并延长交y 轴与点P ,连接BP ,BC .若PBC ∆的面积是24,则点C 的坐标为________.三、解答题(本大题共6个小题,共55分,解答过程写在答题卡上)16.(5分)先化简,再求值:2244412m m mm m-+-÷-+,其中21m+=.17.(6分)在如图所示的直角坐标系中,解答下列问题:(1)分别写出A、B两点的坐标;(2)将△ABC绕点A顺时针旋转90°,画出旋转后的△AB1C118.(8分)(2022年广东省佛山市南海区中考一模数学)随着社会的发展,私家车变得越来越普及,使用节能低油耗汽车,对环保有着非常积极的意义,某市有关部门对本市的某一型号的若干辆汽车,进行了一项油耗抽样实验:即在同一条件下,被抽样的该型号汽车,在油耗1L的情况下,所行驶的路程(单位:km)进行统计分析,结果如图所示:(注:记A为12~12.5,B为12.5~13,C为13~13.5,D为13.5~14,E为14~14.5)请依据统计结果回答以下问题:(1)试求进行该试验的车辆数;(2)请补全频数分布直方图;(3)若该市有这种型号的汽车约900辆(不考虑其他因素),请利用上述统计数据初步预测,该市约有多少辆该型号的汽车,在耗油1L的情况下可以行驶13km以上?19.(8分)如图,以△ABC的边BC为直径作⊙O,点A在⊙O上,点D在线段BC的延长线上,AD=AB,∠D=30°.(1)求证:直线AD是⊙O的切线;(2)过点O作OE∥AB交AC与点E,若直径BC=4,求OE的长.20.(8分)某水果批发商经销一种水果,进货价是12元/千克,如果销售价定为22元/千克,每日可售出500千克;经市场调查发现,在进货价不变情况下,若每千克涨价1元,日销售量将减少20千克.(1)若要每天销售盈利恰好为6000元,同时又可使顾客得到实惠,每千克应涨价为多少元?(2)当销售价是多少时,每天的盈利最多?最多是多少?21.(10分)函数y =14x 2+bx +c 图象交x 轴于A ,B 两点(点A 在左侧)、交y 轴交于点C .已知:OB =2OA ,点F 的坐标为(0,2),△AFB ≌△ACB .(1)求抛物线解析式;(2)抛物线上点P 在第一象限,当∠OCB =2∠PCB 时,求点P 的坐标;(3)抛物线上的点D 在第一象限内,过点D 作直线DE ⊥x 轴于点E ,当7OE =20DE 时,直接写出点D 的坐标;若点M 在抛物线上,点N 在抛物线的对称轴上,是否存在以点B ,D ,M ,N 为顶点的四边形是平行四边形?若存在,请求出所有符合条件的点M 的坐标;若不存在,请说明理由.22.(10分)如图,已知E 为正方形ABCD 的边AD 上一点,连结CE ,点B 关于CE 的对称点为B '连结B D ',并延长B D '交BA 的延长线于点F ,延长CE 交B ′F 于点G ,连结BG ,BB '.(1)请写出所有与CBG ∠相等的角(必须用图中所给的字母);(2)请判断BGB '△的形状,并证明;(3)若2AE DE =,6BC =,求BB '的长.。

2020-2021学年九年级下学期第一次教学质量检测历史试题(含答案)

2020-2021学年九年级下学期第一次教学质量检测历史试题(含答案)

顺德区2020—2021学年度第二学期九年级第一次教学质量检测历史一、单项选择题(本大题30小题,每小题2分,共60分。

每小题列出的四个选.项中只有一个是正确的。

请将答题卡上对应题目所选的选项涂黑)1.历史学家钱穆曾说过:各民族最先历史断难脱离“传说”与带有“神话”之部分。

若严格排斥传说,则古史即无从说起……欲排斥某项传说,应提出与此传说相反之确据。

此主张适合研究A北京人 B.河姆渡人 C.半坡人 D.炎帝黄帝2.《吕氏春秋》中有记载:昔者汤克夏而正天下。

天大旱,五年不收,汤乃以身祷于桑林,曰:“余一人有罪,无及万夫。

万夫有罪,在余一人。

无以一人之不敏,使上帝鬼神伤民之命。

”这一记载符合A.儒家思想B.道家思想C.法家思想D.墨家思想3.有学者认为:它对帝国并不是新东西,也不是起源于秦。

但公元前221年的改革至关重要,它断然摒弃了重立列国的思想,从而为中央统一全帝国各地的集权管辖提供了各种手段。

“它”的实行A.导致了地方势力膨胀B.开创了历代地方行政模式C.引发了秦末农民起义D.加强了国家对文化的管理4.有学者认为:“张骞两次出使西域,拓展了汉王朝的视野,引发了汉王朝与中亚、西亚各国相互贸易的强烈愿望,促成了西汉政府对丝绸之路的开辟和经营。

”该学者认为张骞A.开辟并经营丝绸之路B.拓展了汉朝西部疆域C.最早开始了对外交流D.促进了中外经贸往来5.题5图是关于东汉时期政治局势的一幅漫画。

此漫画反映的历史现象A.利于皇帝行使君权B.加剧地方割据混战C.造成东汉政治腐朽D.直接导致东汉灭亡6.十六国时期,虽然“五胡”内侵、战乱频仍,但是各少数民族统治者大多实行“崇儒兴学”的政策。

这一政策A.确立了儒学正统地位B.促进了北方民族交融C.推动了北方人口南迁D.加速了门阀政治形成7黄仁宇认为:迄至武则天御驾归西之日,她的帝国没有面临到任何真实的危机。

也有学者认为:武则天的统治起到承前启后的枢纽作用,史称“武周之治”。

广东省深圳市南山区第二实验学校2020-2021学年八年级上学期开学考试英语试题

广东省深圳市南山区第二实验学校2020-2021学年八年级上学期开学考试英语试题

广东省深圳市南山区第二实验学校2020-2021学年八年级上学期开学考试英语试题学校:___________姓名:___________班级:___________考号:___________一、单项选择1.—Does Mr. Miller love his dog?—Yes. Whenever he goes out, he takes it with him.A.No matter who B.No matter when C.No matter what 2.—What do you think of the new film?—It’s so interesting that we all love it.A.lovely B.great C.funny3.—How is your work going?—So far it has been easy, but things may change.A.Until now B.Just now C.In the future 4.—What do you usually do when you’re in trouble?—I usually ask my parents for suggestions.A.mind B.space C.advice 5.—What’s the ending of the story?—The little girl succeeded in finding her parents in the end.A.at first B.at last C.in time 6.—Tony, before handing in your paper, you’d better look it over carefully.—I see, Mum.A.copy it B.check it C.control it7.—How much is the white sweater?—It’s 300 yuan.A.What’s the price of B.Why not buy C.How do you like 8.—Can you speak Russian?—No, but I know a bit of French.A.a few B.a kind C.a little9.A(n)________ is someone who wins a game, competition, etc.A.winner B.guest C.inventor10.The boy ________ himself behind a tree, so his mother couldn’t find him.A.taught B.enjoyed C.hid11.—What did you say to your little brother just now?—I told him not to _______ our parents any more. We’ve grown up.A.learn from B.depend on C.look after 12.—What’s the most important thing for a teacher?—The most important thing is to _______ his or her students.A.respect B.punish C.operate13.—What does your father do, Jack?—He is a worker in the food _______. He likes his job.A.company B.museum C.countryside 14.—What do you know about Peter?—He likes doing his homework and listening to music _______.A.at any time B.at the same time C.at any times15.—I hear they’re going to _______ Romeo and Juliet school hall this Friday.—Really? I can’t wait to see it.A.get up B.take out C.put on二、完形填空and Lewis saw a large mass(一团)of gray smoke coming from the car. So Lewis asked hisbus.16.A.compared B.punished C.caught D.drove 17.A.invention B.direction C.pollution D.rule 18.A.bad B.good C.helpful D.valuable 19.A.way B.habit C.problem D.order 20.A.happily B.slowly C.hardly D.possibly 21.A.early B.late C.relaxed D.popular 22.A.drawing about B.talking about C.moving about D.thinking about 23.A.mention B.give C.pick D.produce 24.A.car B.bike C.bus D.plane 25.A.useful B.boring C.tiny D.harmful三、阅读单选People are always good at inventing things. Let’s learn about some inventions that can26.Which is TRUE about the wingsuit?A.You can buy it at a very low price.B.It is a very new invention.C.Its price is lower than before.D.It looks like a kind of fish.27.What can the new solar water distiller do?A.It can turn the salty water into clean drinking water.B.It can turn the dirty water into clean drinking water.C.It can make the clean drinking water warm soon.D.It can make the clean drinking water cold soon.28.Whom can the “enable talk glove” help?A.A little kid.B.A deaf person.C.A person without arms.D.A blind person.29.What can we learn about Cameron?A.He invented the Deepsea Challenger Submarine by himself.B.He joined in the competition the year before last.C.He stayed in the Challenger Deep for more than four hours.D.He set a record by going down to the bottom of the Challenger Deep alone. 30.What’s the passage mainly about?A.The history of some inventions.B.Some useful inventions.C.Ways to invent things.D.Great people in history.Shimada Kouji comes from Fukuoka, Japan. In May 2010, he was invited by a Wuhan student who studied in Japan to teach the skill of making curry (咖喱). At that time, Shimadahad visited some cities in China, including Wuhan, since 1982.“I really love China and Chinese culture,” he said. “After several months’ living in the city, I decided to stay here.” In November 2010, he opened his first restaurant in Wuhan. It became highly popular with young fans of curry and later he opened the second restaurant near Wuhan University.“Wuhan people are warm, kind and energetic,” he said. “I fell in love with the city and got used to life here.”Over the past 10 years, his restaurants have also attracted (吸引) lots of young people who are interested in Japanese language and culture, so he’s set up a free Japanese language course at his restaurant.After the city was shut down in late January to fight against COVID-19, all restaurants were closed, including Shimada’s. This seriously influenced his business. Although his relatives and friends in Japan advised him to return to his hometown, he still chose to stay in Wuhan. “I’ve seen Wuhan as my second hometown, and I hope I can join together with the city when it’s in trouble,” he said. “Through the epidemic (疫情), we can clearly see how great the Chinese government and the Chinese people are.”31.When did Shimada Kouji visit Wuhan for the first time?A.Before 1982B.In 2010C.In 2020D.Between 1982 and 201032.What does the underlined word “It” in paragraph 2 refer to?A.The Wuhan city.B.The curry food.C.The skill of making curry.D.Shimada’s first restaurant in Wuhan. 33.Which of the facts may show Shimada’s love for Wuhan?A.He opened two bookstores in Wuhan.B.He set up an expensive Japanese course for people in Wuhan.C.He didn’t fear COVID-19 and chose to stay in Wuhan.D.He decided to go back to Japan during COVID-19.34.Which of the following is TRUE according to the passage?A.Shimada Kouji came to Wuhan in 2010 because he wanted to visit his relatives.B.Shimada Kouji thinks highly of China and Chinese people.C.The epidemic didn’t have a big influence on Shimada’s restaurants.D.Shimada’s relatives and friends agreed with his idea of staying in Wuhan.35.What does the passage mainly talk about?A.A Japanese man who is full of love for Wuhan.B.A Japanese man’s restaurants in Wuhan.C.Warm and honest people in Wuhan.D.Wuhan in the eyes of a Japanese man.As an English learner, I used to translate(翻译)an English sentence into Chinese word by word when I wanted to recite it. Later, I found it not clever to learn English in this way. Take the sentence “How do you do?” for example. If you look up each word in the dictionary, one at a time, what’s your translation? It must be a wrong sentence in your own language.Languages do not just have different sounds,and they are also different in many ways. It is important to master the rules for word order in the study of English, too. If words are put in a wrong order in the sentences, the listeners can’t understand the speakers’ sentences easily. Sometimes when the order of the words in an English sentence is changed, the meaning of the sentence is changed, too. Let me give you an example.She only likes apples.Only she likes apples.In the process of learning English, you must try your best to get the spirit of the language and use it as the English speakers do. If you can do this, you will be closer to learning it well. Would you like to have a try like this now?36.How did the writer use to learn English according to the beginning of the passage?A.In a wrong way.B.Without any help.C.In a right way.D.Without working hard.37.What can we know about learning English from the passage?A.We should look up every word in the dictionary.B.We shouldn’t translate every word into our own language.C.We need to put every word into our own language.D.We must read word by word.38.What’s the writer’s opinion about learning English?A.It is difficult to understand different sounds.B.It is impossible to remember the word order.C.It is important to master the rules for word order.D.It is easy to master the rules for word order.39.What can we know from the passage?A.The only difference between languages is the sound.B.Most people in China can not use English as the English speakers do.C.Sometimes the order of words can influence a sentence’s meaning.D.The writer likes remembering English words.40.What is the main idea of the passage?A.You should translate every word into Chinese when you learn English.B.You didn’t need to notice the word order if you learn English.C.You should always turn to a dictionary when you learn English.D.You should try your best to master the spirit of the language you learn.四、阅读还原6选5阅读短文及文后选项,选出可以填入空白处的最佳选项。

2020-2021学年度翰林中英文学校九年级第一次模拟考试 数学试卷

2020-2021学年度翰林中英文学校九年级第一次模拟考试 数学试卷

s场要对一块麦田施底肥,现有化肥若干千克.如果每公顷施肥 400
千克,那么余下化肥 800 千克;如果每公顷施肥 500 千克,那么缺少化肥 300
千克.若设现有化肥 x 千克,则可列方程为( )
18.(本题 10 分)钟南山院士谈到防护新型冠状病毒肺炎时说:“我们需要重 视防护,但也不必恐慌,尽量少去人员密集的场所,出门戴口罩,在室内注
15.老师在黑板上随手写下一串数字“002 200 220”,则数字“0”出现的频率是
_______. 16.日常生活中主要运用“十进制”数,而“十六进制”广泛应用于电子技术、 计算机编程等领域.十六进制在数学中是一种“逢 16 进 1”的进位制,一般用
数字 0 到 9 和字母 A 到 F 表示,其中用 A,B,C,D,E,F 分别表示 10,
A.109.2 米 B.136.5 米 C.242.7 米 D.303.3 米
12.求1 2 22 23 22013 的值,可令 S 1 2 22 22013 ,则
2S 2 22 23 22014 ,因此 2S S 22014 1 .仿照以上推理,计算
出1 5 52 53 52013 的值为(
意通风,勤洗手,多运动,少熬夜.”某社区为了加强社区居民对新型冠状 病毒肺炎防护知识的了解,通过微信群宣传新型冠状病毒肺炎的防护知识,
确的是( )
与白球相同的红球,混匀后再从袋子中随机摸出 20 个球,发现其中有 4 个 红球.根据小明的方法估计袋中白球有( )
A.200 个
B.100 个
C.50 个
D.40 个
6.在同一平面坐标系中,一次函数 y mx n2 与二次函数 y x2 m 的图
象可能是( )
A.
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