2012百合外国语真题

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广东省百合外国语学校新初一分班英语试卷

广东省百合外国语学校新初一分班英语试卷

广东省百合外国语学校新初一分班英语试卷一、单项选择1.The canteen is on the ________ floor. ( )A.one B.second C.three2.Nancy is going to _______ a film this Sunday. ( )A.watch B.watches C.watching3.How can you cross the road ______? ( )A.safety B.safe C.safely4.The boys are _____ about the _____ running race. ( )A.exciting; excited B.exciting; exciting C.excited; exciting 5.Don’t talk ________. You should be ________ here. ( )A.loudly; loud B.loudly; quietly C.loudly; quiet6.From then on, John and David ________ good friends. ( )A.become B.became C.becomes7.在句子“Please look at the blackboard.”中,哪两个单词可以进行连读?( )A.Please look B.look at C.the blackboard8.The children are going to visit ________ new school tomorrow. Miss Li will ________. ( ) A.their; show them aroundB.their; show their aroundC.them; show around they9.The man _________ big eyes is Su Hai’s father. ( )A.with B.in C.on10.Smoke from cars ________ the city dirty. What can we do ________ keep the air clean? ( ) A.make; to B.makes; for C.makes; to 11.Before, I was ___________. ( )A.become B.enjoy C.quiet12.We ________ many pictures yesterday. ( )A.learned B.went C.took13.Your hands are ______ than ______. ( )A.biger; mine B.bigger; I C.smaller; mine14.I ______ a cold. I stayed at home all weekend and slept. ( )A.have B.was C.had15.I _____ a book last weekend. ( )A.buy B.buys C.bought16.当你的朋友说“How are you?”,你可以说:( )A.I’m fine. Thank you.B.I’m sorry to hear that.C.How do you do?17.You play football on the road.( )A.mustn’t B.must C.can18.Don’t hurt the little animals. They are very . ( )A.strong B.weak C.large19.Miss Liu is so kind and funny. We all like _______. ( )A.she B.her C.him20.We ________ use glass bottles. We ________ use too many plastic bottles. ( ) A.should; should B.shouldn’t; should C.should; shouldn’t二、用单词的适当形式填空21.Sarah is very _________. (thin)22.He fell off his bike and _______ (hurt) his leg last night.23.How ________ is it? It's 4 metres. It's ________ than you. (tall)24.—I'm 55 kilograms. How about you?—I'm 65 kilograms. I'm ________ (heavy) than you.25.That's the ____ (tall) dinosaur in this hall.26.In the garden, there are many ____ (tomato).27.Don’t talk, my little sister ________ (sleep).28.Listen! Who ________ (read) English?29.Would you like _______ (tell) me what happened?30.The boy _______ (fly) a kite in the park tomorrow afternoon.三、完成句子31.He wants to be an astronaut in the _______ (未来).32.To keep s_____, we mustn’t play on the road.33.S_____ he goes to work on foot.34.At that time, there was no ______ (体育馆).35.John fell off his bike and _________ (受伤) his foot last Saturday.36.Chen Jie ______ (打扫) her room last night.37.Yesterday was an exciting day. I _______ with Mike in the nature park. (拍照片)38.Did Lucy w_______ TV last Sunday?39.Did you help them c_______ their room?40.Tom was ill. He s_________ all day at home.四、完形填空41.There was a horse on a small island(岛). He didn’t like the island. He wanted to find a(n)__41___ place. All his friends said, “Don’t __42___, Mr Horse. “But the horse didn’t listen to his friends. The horse left at last. ___43____ got to a big island on a hot afternoon. He could _44__ a lot of green grass there. After about fifteen days, he was very __45___. Unluckily(不幸的是), a man saw the horse and __46___ him one day. He took the horse home.So the horse had to __47___ hard all day. The man was not kind to him. The horse was very thin after one year and he was very ___48____. “I’m not happy at all. I wa nt my _49__,” thoughtthe horse.The horse ran back to the small island one night. He was happy to _50__ his friends again. “I will never leave my friends again,” he said.41、A.old B.new C.small42、A.leave B.find C.work43、A.it B.She C.He44、A.put B.visit C.eat45、A.thin B.heavy C.interesting46、A.caught B.lost C.washed47、A.study B.work C.walk48、A.late B.happy C.sad49、A.mother B.father C.friends50、A.see B.make C.pick五、阅读判断42.根据短文内容判断下列句子的正(T)误(F)。

广东省深圳市百合外国语学校2024—2025学年九年级上学期10月月考数学试卷

广东省深圳市百合外国语学校2024—2025学年九年级上学期10月月考数学试卷

广东省深圳市百合外国语学校2024—2025学年九年级上学期10月月考数学试卷一、单选题1.下列方程中,属于一元二次方程的是( ) A .2356x x -= B .120x-=C .224x y +=D .610x +=2.若34a b =,则下列等式错误的是( ) A .43a b = B .:4:3a b =C .34a b =D .74a b b += 3.如图,在正方形ABCD 外侧作等边ADE V ,则AEB ∠的度数为( )A .15°B .22.5°C .20°D .10°4.菱形具有而矩形不具有的性质是( ) A .四边相等B .对角线相等C .对角相等D .邻角互补5.一元二次方程2430x x +-=中一次项系数、常数项分别是( ) A .2,3-B .0,3-C .1,3-D .1,06.如图,点D 是ABC V 的边AB 上的一点,连接DC ,则下列条件中不能判定ABC ACD V V ∽的是( )A .B ACD ∠=∠ B .ADC ACB ∠=∠ C .AC ABCD BC= D .AC ABAD AC=7.在一次九年级学生数学交流会上,每两名学生握手一次,所有学生共握手231次.若设参加此会的学生为x 名,据题意可列方程为( )A .1(1)2312x x +=B .2(1)231x x -=C .(1)2312x x -=⨯D .(1)231x x -=8.如图,已知E ,F 分别为正方形ABCD 的边AB ,BC 的中点,AF 与DE 交于点M .则下列结论:①90AME ∠=︒,②BAF EDB ∠=∠,③23AM MF =,④ME MF +.其中正确结论的有( )A .4个B .3个C .2个D .1个二、填空题9.若关于x 的一元二次方程220x x c ++=有两个相等的实数根,则实数c 的值为. 10.在一只不透明的口袋里装有只有颜色不同的黑、白两种颜色的球若干,某学习小组做摸球试验,将球搅匀后从中随机摸出一个球记下颜色,然后把它放回袋中,不断重复,如表是活动进行中的一组统计数据:任意摸出一个球,则“摸到白球”的概率约是(结果精确到0.1). 11.如图,直线a ∥b ∥c ,则图中x 的值为 .12.如图,四边形ABCD 是菱形,对角线AC 与BD 相交于点O ,8AC =,6BD =,DE AB ⊥于点E ,则DE 的长为.13.如图,在矩形ABCD 中,6,8AB AD ==,点E 为直线BC 下方一点,且以BC 为斜边在矩形的外部作直角三角形BEC ,点F 是CD 的中点,则EF 的最大值为.三、解答题 14.解下列方程: (1)2210x x --=; (2)()()3121x x x -=-15.数学社团开展“讲数学家故事”的活动.下面是印有四位中国数学家纪念邮票图案的卡片A ,B ,C ,D ,卡片除图案外其他均相同.将四张卡片背面朝上,洗匀后放在桌面上,同学们可以从中随机抽取卡片,讲述卡片上数学家的故事.(1)小安随机抽取了一张卡片,卡片上是数学家刘徽邮票图案的概率是______;(2)小明随机抽取了两张卡片,请用画树状图或列表的方法,求小明抽到的两张卡片中恰好有数学家华罗庚邮票图案的概率.16.已知:关于x 的一元二次方程()2223320x k x k k -++++=.(1)证明无论k 取何值时方程总有两个实数根.(2)ABC V 中,=5BC ,AB 、AC 的长是这个方程的两个实数根,求k 为何值时,ABC V 是等腰三角形?17.如图,矩形ABCD 的对角线相交于点O ,,DE AC CE BD ∥∥,连接BE .(1)求证:四边形OCED 是菱形;(2)若60,4DCA DC ∠=︒=,求EBC V 的面积.18.2023年杭州亚运会吉祥物一开售,就深受大家的喜爱.某商店以每件35元的价格购进某款亚运会吉祥物,以每件58元的价格出售.经统计,4月份的销售量为256件,6月份的销售量为400件.(1)求该款吉祥物4月份到6月份销售量的月平均增长率;(2)从7月份起,商场决定采用降价促销的方式回馈顾客,经试验,发现该吉祥物每降价1元,月销售量就会增加20件.当该吉祥物售价为多少元时,月销售利润达8400元? 19.问题引入: 如图①,AB CD ∥,AB CD >,90ABD??,E 是线段AC 的中点,连接DE 并延长交AB 于点F ,连接BE .则BE 与DE 之间的数量关系是______;问题延伸:如图②,在正方形ABCD 和正方形BEFG 中,点A 、B 、E 在同一条直线上,点G 在BC 上,P 是线段DF 的中点,连接PC 、PG .(1)判断PC 与PG 之间的数量关系,并说明理由;(2)连接CF ,若3AB =,PC =CF 的长为 .20.【阅读理解】配方法是中学数学的重要方法,用配方法可求最大(小)值.对于任意正实数a ,b ,可作如下变形: ∵a b +22=+22=+-2=+又∵20≥∴20++即a b +≥根据上述内容,回答问题:23+______143+______66+______(用“=”“>”“<”填空) 【思考验证】如图1,ABC V 中,90ACB ∠=︒,CD AB ⊥于点D ,CO 为AB 边上中线,2AD a =,2DB b =,试根据图形验证a b +≥【探索应用】(1)请利用上述结论解决下面问题,某园林设计师要对园林的一个区域进行设计改造,一面利用墙体将该区域用篱笆围成中间隔有一道篱笆的矩形花圃,如图2所示,为了围成面积为2300m 的花圃,所用的篱笆至少为多少米?(2)如图3,四边形ABCD 的对角线AC ,BD 相交于点O ,AOB V ,COD V 的面积分别是5和16.试问四边形ABCD的面积是否存在最小值?若存在,请直接写出....四边形ABCD面积的最小值;若不存在,请说明理由.。

(解析版)2013年广东省深圳市百合外国语学校招生考试数学试卷

(解析版)2013年广东省深圳市百合外国语学校招生考试数学试卷

2013年广东省深圳市百合外国语学校招生考试数学试卷一、解方程。

1.(8分)(2013•深圳)求x.(1).(2)x:4.8=0.5:4.【分析】(1)先计算x+x=x,然后等式两边同时除以;(2)根据比例的基本性质,把原式化为4x=4.8×0.5,然后等式两边同时除以4.x=36;【解答】解:(1)x+x=42,x=42,x÷=42÷,(2)x:4.8=0.5:4,4x=4.8×0.5, 4x÷4=4.8×0.5÷4, x=0.6.【点评】考查了解方程和解比例,根据比例的基本性质和等式的性质进行解答.二、计算题。

2.(12分)(2013•深圳)计算题:(1)3.5×+0.35×10+×350%;(2)[2]+4.02;(3)(20﹣+(19﹣×2)+(18﹣)+…+(1﹣×20)【分析】(1)根据乘法分配律进行简算;(2)先算减法,再算乘法,再算中括号里面的加法,最后算括号外面的加法;(3)根据加法交换律和结合律以及乘法分配律进行简算.【解答】解:(1)3.5×+0.35×10+×350%=3.5×+3.5×1+×3.5=3.5×(+1+)=3.5×5=17.5;(2)[2]+4.02=[2+2×1]+4.02=[2+2]+4.02=5+4.02=9;(3)(20﹣×1)+(19﹣×2)+(18﹣)+…+(1﹣×20)=(20+19+18+…+1)﹣×(1+2+3+…+20)=(20+19+18+…+1)×(1﹣)=[(20+1)×20÷2]×=210×=190.【点评】考查了运算定律与简便运算,四则混合运算.注意运算顺序和运算法则,灵活运用所学的运算定律简便计算.三、判断题(对的打“√”,错的“×”)(每小题2分,共10分)3.(2分)(2013•深圳)一条路,修了的米数和未修的米数成反比例.错误.【分析】判断修了的米数和未修的米数是否成反比例,就看这两种量是否是对应的乘积一定,如果是乘积一定,就成反比例,如果不是乘积一定,就不成反比例.据此进行判断.【解答】解:修了的米数+未修的米数=一条路的总米数(一定),是和一定,不是乘积一定,所以修了的米数和未修的米数不成反比例.故答案为:错误.【点评】此题属于辨识两种相关联的量是否成反比例,就看这两种量是否是对应的乘积一定,再做出判断.4.(2分)(2012•平坝县)钟表上分针转动的速度是时针的12倍.√.(判断对错)【分析】钟表上时针转动1个大格,分针正好转动12个大格,是一周.【解答】解:12÷1=12.故判断为:√.【点评】此题是考查钟表上分针与时针转动的速度的关系.5.(2分)(2013•深圳)小丽班同学的数学考试平均分是90.56,小华班同学的数学考试平均分是90.5分,那么小丽的分数一定比小华的分数高.×.(判断对错)【分析】平均数反映的是一组数据的特征,不是其中每一个数据的特征,小华班同学的数学考试的平均分是90.5分,小丽班同学的数学考试平均分是90.56分,小丽班的每个同学不一定比小华班的每个同学的分数高,有的可能低,所以说小丽的分数一定比小华的分数高是错误的.【解答】解:由分析可知:小丽班同学的数学考试平均分是90.56,小华班同学的数学考试平均分是90.5分,那么小丽的分数一定比小华的分数高的说法是错误的.故答案为:×.【点评】掌握平均数的含义是解题的关键.6.(2分)(2013•深圳)1.7除以0.3的商是5,余数是2.×.(判断对错)【分析】根据在有余数的除法中,被除数=商×除数+余数,可得:被除数﹣余数=商×除数;据此判断.【解答】解:1.7﹣0.3×5=1.7﹣1.5=0.2故答案为:×.【点评】根据在有余数的除法里,被除数、除数、商和余数之间的关系进行解答.7.(2分)(2013•深圳)一种微型零件长0.5毫米,画在一副图上长5厘米,这幅图的比例尺是1:100.×.(判断对错)【分析】根据比例尺的意义作答,即比例尺是图上距离与实际距离的比.【解答】解:5厘米:0.5毫米=50毫米:0.5毫米=100:1答:这幅图的比例尺是100:1.故答案为:×.【点评】本题主要考查了比例尺的意义,注意图上距离与实际距离的单位要统一.四、选择题,,每小题2分,共20分8.(2分)(2005•锡山区)如果用a表示自然数,那么偶数可以表示为()A.a+2 B.2a C.2a﹣1【分析】能被2整除的数为偶数,所以如果用a表示自然数,那么偶数可表示为2a.【解答】解:根据偶数的定义可知,如果用a表示自然数,那么偶数可表示为2a.故答案为:B.【点评】本题考查了如何用字母来表示偶数.9.(2分)(2013•深圳)一个长方体的长、宽、高分别是a米、b米和h米,如果高增高1米,体积增加()A.ab B.abh C.ab(h+1)D.bh【分析】根据长方体的体积公式:v=abh,把数据代入公式解答.【解答】解:a×b×1=ab(立方米),答:体积增加ab立方米.故选:A.【点评】此题主要考查长方体的体积公式的灵活运用,关键是熟记公式.10.(2分)(2013•深圳)将若干个1立方厘米的正方形木块,摆成一个最小的正方体(不包括一块)至少需要()A.4块B.8块C.16块D.27块【分析】将若干个1立方厘米的正方形木块,摆成一个正方体,那么这个正方体的棱长最小为2厘米,也就是每个棱长上都有2个1立方厘米的正方体木块,所以组成的这个正方体中,小正方体的个数至少有2×2×2=8块.【解答】解:根据小正方体拼组大正方体的方法可得:将若干个1立方厘米的正方形木块,摆成一个正方体,那么这个正方体的棱长最小为2厘米,即每个棱长上都有2个1立方厘米的正方体木块,所以小正方体的个数有:2×2×2=8(块);答:至少需要8块.故选:B.【点评】此题考查了小正方体拼组大正方体的方法的灵活应用:大正方体的每个棱长上小正方体的个数的三次方,就是组成这个大正方体的小正方体的个数总和.11.(2分)(2013•深圳)一个班不足50人,现大扫除,其中扫地,摆桌椅,擦玻璃,这个班没有参加大扫除的人数有()人.A.1 B.2 C.3 D.1或2【分析】、、都是最简形式,所以这个班的人数是2、4和5的最小公倍数的倍数,2、4和5的最小公倍数是20,而且这个班不足50人,所以这个班只能是20人或40,据此把总人数看做单位“1”,即可得出没参加大扫除的是1﹣﹣﹣,再根据分数乘法的意义即可解答.【解答】解:根据题干分析可得:2、4和5的最小公倍数是20,而且这个班不足50人,所以这个班只能是20人或40,总人数看做单位“1”,即可得出没参加大扫除的是1﹣﹣﹣=,当总人数是20时:没参加大扫除的有:20×=1(人),当总人数是40时:没参加大扫除的有:40×=2(人),答:没参加大扫除的有1或2人.故选:D.【点评】解答此题的关键是明确这个班的总人数必定是2、4、5的公倍数,据此再根据分数乘法的意义即可解答.12.(2分)(2012•济南)甲增加10%与乙相等,则甲比乙()A.少10% B.多10% C.少【分析】设甲为1,甲增加10%后就是原来的1+10%,也就是乙数,甲数少,再用10%除以乙数就是甲数比乙数少百分之几.【解答】解:设甲数为1,则乙数是:1×(1+10%)=1.1;10%÷1.1=;甲数比乙数少;故选:C.【点评】本题属于基本的百分数除法应用题,求一个数是另一个数的百分之几,用前一个数除以后一个数.13.(2分)(2013•深圳)将化成小数后,小数点后第2013位上的数字是()A.2 B.4 C.3 D.8【分析】先把化成小数,=0.4285,它每6个数字一个循环,用2013除以6,再根据它的商和余数确定2013位上的数.【解答】解:=0.4285,它每6个数字一个循环:1、4、2、8、5、7;2013÷6=335…3,余数是3,所以小数点后第2013位上的数字是2;故选:A.【点评】本题的关键是把化成小数后,再根据它的小数部分循环节的位数,去除2013,然后再根据商和余数确定第2013位上的数字是几.14.(2分)(2013•深圳)一个圆柱和一个圆锥,底面周长的比是3:2,体积比是3:2,那么这个圆柱和这个圆锥高的比是()A.3:2 B.4:9 C.2:3 D.2:9【分析】根据圆的周长公式知道底面周长的比就是半径的比,设圆柱的底面半径是3,则圆锥的底面半径是2,设圆柱的体积是3,则圆锥的体积是2,再根据圆柱的体积公式V=sh=πr2h与圆锥的体积公式V=sh=πr2h,得出圆柱的高与圆锥的高,进而根据题意,进行比即可.【解答】解:设圆柱的底面半径是3,则圆锥的底面半径是2,设圆柱的体积是3,则圆锥的体积是2,则:[3÷(π×32)]:[2÷÷(π×22)]=:=2:9.答:这个圆柱和这个圆锥的高的比是2:9.故选:D.【点评】此题主要是根据圆柱的体积公式与圆锥的体积公式的推导出圆柱与圆锥的高的关系.15.(2分)(2013•深圳)一种商品按标价的九折销售,可获得利润20%,该种商品的进价为每件210元,则每件商品的标价为()元.A.300 B.291.7 C.280 D.277.2【分析】设每件商品的标价x元,则售价为0.9x元,根据售价=进价×(1+20%),列出方程解答即可.【解答】解:设每件商品的标价x元, 0.9x=210×(1+20%), 0.9x=210×1.2,0.9x÷0.9=252÷0.9x=280;答:每件商品的标价为280元.故选:C.【点评】解答本题的关键是读懂题意,设出未知数,找出合适的等量关系,列出方程解答即可.16.(2分)(2013•深圳)已知a、b、c都是整数,则下列三个数,,中,整数的个数是()A.至少有一个 B.仅有一个C.仅有两个D.三个都是【分析】根据偶数与奇数的定义可知,如果它们的和的是偶数则除以2的商为整数,如果它们的和为奇数,则它们数和除以2的商不为整数,因此完成本题要根据a,b,c的奇偶性的不同情况来判断它们数和的奇偶性,从而得出它们的数和除以2时,商是否是整数.【解答】解:当a,b,c都为偶数时,则a+b,a+c,c+b的和为偶数,那么,,都为整数;当a,b,c都为奇数时,则a+b,a+c,c+b的和为偶数,那么,,都为整数;当a,b,c中有一个偶数,两个奇数时,a+b,a+c,c+b的和中有两个为奇数,一个为偶数,那么,,只有一个为整数;当a,b,c中有一个奇数,两个偶数时,a+b,a+c,c+b的和中有两个为奇数,一个为偶数,那么,,只有一个为整数;所以,如果a,b,c是三个任意整数,那么,,中至少有一个为整数;故选:A.【点评】完成本题要在了解数和的奇偶性的基础上完成:偶数+偶数=偶数,奇数+奇数=偶数,偶数+奇数=奇数.17.(2分)(2013•深圳)如图中每个等边三角形的面积为1平方米,则三角形ABC的面积是()A.9平方米B.10平方米C.10.5平方米D.11平方米【分析】如图图中的三角形可分为四部分进行计算红色三角形部分是它对应的平行四边形面积的一半是3平方厘米,蓝色三角形的面积是2平方厘米,绿色三角形的面积是4平方厘米,中间一个三角形的面积是1平方厘米,据此解答.【解答】解:3+2+4+1=10(平方厘米)答:三角形ABC的面积是10平方厘米.故选:B.【点评】本题的重点是把三角形分解成四部分再进行计算它的面积.五、填空题,每小题2分,共12分18.(2分)(2013•深圳)一人平均每天刷牙两次,每次浪费水1.2升,那么500000人每天浪费水约120 万升.【分析】用每次浪费的水的升数,乘上每天刷牙的次数,再乘上人数,就是每天浪费的水的升数.据此解答.【解答】解:1.2×2×500000=1.2×1000000=1200000(升)=120(万升);答:500000人每天浪费水约120万升.故答案为:120.【点评】本题主要考查了学生根据乘法的意义列式解答应用题的能力,注意把结果要化成多少万升.19.(2分)(2013•深圳)的分子加上6,要使分数的大小不变,分母应加上14 .【分析】根据分数的基本性质看分数的分子扩大了多少倍,相应的分母也应该扩大相同的倍数,求出分母是多少,再减去原来的分母即可解答.【解答】解:(3+6)÷3=3;7×3﹣7=14.即要使分数的大小不变,分母应加上14.故答案为:14.【点评】此题考查分数基本性质的运用:分数的分子与分母同时扩大或缩小相同的倍数(0除外),分数的大小不变.20.(2分)(2013•深圳)6条谜语让50人猜,共猜对了178条次.已知每人至少猜对2条,且猜对2条的有16人,猜对4条的有9人,猜对3条和5条的人数一样多,那么6条全猜对的有 5 人.【分析】此题可以设猜对3条和5条的人数一样多分别为x人,则猜对6条的有50﹣16﹣9﹣2x=25﹣2x人,根据共猜对了178条次,即可列出方程:2×16+4×9+3x+5x+(25﹣2x)×6=178,解这个方程即可解决问题.【解答】解:设猜对3条和5条的人数一样多分别为x人,则猜对6条的有50﹣16﹣9﹣2x=25﹣2x人,根据题意可得方程:2×16+4×9+3x+5x+(25﹣2x)×6=178,32+36+8x+150﹣12x=178,218﹣4x=178,4x=40,x=10,则6条全猜对的有:25﹣2×10=5(人),答:6条全猜对的有5人.故答案为:5.【点评】此题关键是设出未知数:设出猜对3条和5条的人数为x,根据总人数和分别答对2条、3条、4条、5条的人数,用x表示出猜对6条的人数,即可根据等量关系列出方程解决问题.21.(2分)(2014•南城县)有10名同学进行乒乓球比赛,如果每2名之间都进行一场比赛,一共要比赛45 场.【分析】如果每两个同学之间都进行一场比赛,每个同学都要和其他的9人进行一场比赛,每个同学打9场,共有10×9场比赛;由于每两个人之间重复计算了一次,实际只需打10×9÷2=45场即可.【解答】解:(10×9)÷2=90÷2=45(场);答:一共要进行45场比赛.故答案为:45.【点评】在单循环赛制中,参赛人数与比赛场数的关系为:比赛场数=参赛人数×(人数﹣1)÷2.22.(2分)(2013•深圳)1000个体积为1立方厘米的小正方体合在一起成为一个边长为10厘米的大正方体,大正方体表面涂油漆后再分开为原来的小正方体,这些小正方体至少有二面被油漆涂过的数目是多少个?【分析】因为10×10×10=1000,所以大正方体的每条棱上有10个小正方体,三面涂色的小正方体在答正方体的8个顶点处,有8个;二面涂色的在大正方体的12条棱的顶点里面,有(10﹣2)×12个;其他的小正方体是没有涂色的和一面涂色的;所以这些小正方体至少有二面被油漆涂过的数目是三面涂色的加上二面涂色的.【解答】解:共有小正方体:10×10×10=1000(个),三面涂色的在顶点处有8个,二面涂色的在大正方体的12条棱的顶点里面,有(10﹣2)×12=96(个),所以至少有二面被油漆漆过的小正方体为8+96=104(个).答:这些小正方体至少有二面被油漆涂过的数目是104个.【点评】这些小正方体至少有二面被油漆涂过的数目包括三面涂色的和二面涂色的两部分.23.(2分)(2013•深圳)如图,一只羊被9米长的绳子拴在等边三角形建筑物的一个顶点上,建筑物边长为6米,周围都是草地,这只羊能吃到草地面积可达到73.5π平方米(保留π)【分析】这只羊能吃到草地面积包括3个部分:①以9米为半径,圆心角是360°﹣60°=300°的扇形面积;②、③都是以9﹣6=3米为半径,圆心角是180°﹣60°=120°的扇形面积,然后根据扇形的面积公式解答即可.【解答】解:①以6米为半径,圆心角是360°﹣60°=300°的扇形面积是:92×π×=67.5π(m2)②、③都是以9﹣6=3米为半径,圆心角是180°﹣60°=120°的扇形面积是:32×π×=3π(m2)总面积是:67.5π+2×3π=73.5π(m2)答:这只羊能吃到草地面积可达到73.5π平方米.故答案为:73.5π.【点评】本题考查了圆与组合图形的面积计算,这种类型的题可以根据几何图形的特征,通过分割、割补、平移、翻折、对称、旋转等方法,化复杂为简单,变组合图形为基本图形的加减组合.六、解决问题(请适当地写出解答过程,共38分,27-31题6分,32题8分)24.(6分)(2013•深圳)下面是某种营养品的使用说明:笑笑是小学六年级学生,体重30千克,一日分三次服用这种营养品,每次最少服几片?最多服几片?【分析】首先搞清笑笑一天总的用药量(最大用药量和最小用药量);再把总的用药量平均分成三份,求得每一次的用药量;最后除以每一片药的质量,即可求得问题.【解答】解:0.02克=20毫克,0.04克=40毫克,0.2克=200毫克,笑笑的最小用药量:20×30=600(mg),600÷3÷200=1(片);笑笑的最大用药量:40×30=1200(mg),1200÷3÷200=2(片);答:每次至少服1片,最多服药2片.【点评】解答此题需要分情况探讨,明确题目中所给数量属于哪一种情况,由此选择正确的解题方法.25.(6分)(2013•深圳)有甲、乙两个粮仓,已知甲仓装粮675吨,如果从甲仓调出粮食,从乙仓库调出粮食25%后,这时甲仓库的粮食比乙仓的2倍还多150吨,乙仓原有粮食多少吨?【分析】已知甲仓装粮675吨,如果从甲仓调出粮食,根据分数乘法的意义,从甲仓调出了675×=225吨,则还剩675﹣225=450吨,又这时这时甲仓库的粮食比乙仓的2倍还多150吨,即450﹣150吨正好是此时乙仓的2倍,又此时乙仓还剩下原来的1﹣25%,450﹣150吨正好是乙仓的75%×2,根据分数除法的意义,乙仓原有(450﹣150)÷(75%×2)吨.【解答】解:[(675﹣675×)﹣150]÷(75%×2)=[(675﹣225)﹣150]÷1.5=[450﹣150]÷1.5=300÷1.5=200(吨)答:乙仓原有200吨.【点评】完成本题要注意单位“1”的确定,将乙仓调出25%后的数量当作单位“1”.26.(6分)(2013•深圳)牙膏出口处直径为5毫米,小红每次刷牙都挤出1厘米长的牙膏.这支牙膏可用36次.该品牌牙膏推出的新包装只是将出口处直径改为6毫米,小红还是按习惯每次挤出1厘米长的牙膏.这样,这一支牙膏只能用多少次?【分析】由题意知,一支牙膏的容积没有变,只是原来和现在每次挤出的牙膏体积不同,因而使用的次数也就不同;可利用V=sh先求出这支牙膏的体积,再求按现在每次挤出的牙膏量能用多少次.【解答】解:3.14×(5÷2)2×1×36÷[3.14×(6÷2)2×1],=3.14×6.25×36÷[3.14×9],=706.5÷28.26,=25(次);答:这一支牙膏只能用25次.【点评】此题是考查用圆柱知识解决实际问题,求体积可运用体积公式V=sh来解答.27.(6分)(2013•深圳)一项工程,甲队单独做要20天完成,乙队单独做要12天完成.已知甲队做了几天后离开,乙队紧接着做,从开始到完成共用了14天.那么甲队做了多少天?【分析】把工作总量看成单位“1”,甲的工作效率就是,乙的工作效率就是;假设这14天都是乙队工作,那么就会完成,这部分比工作总量多的量除以乙的工作效率比甲多的量,就是甲工作的天数.【解答】解:(×14﹣1)÷(﹣)=÷=5(天);答:甲队做了5天.【点评】解决本题利用假设法,找出乙比甲多完成的工作量,再用多的工作量除以它们的工作效率差即可求解.28.(6分)(2013•郯城县)一列慢车和一列快车分别从A、B两站相对开出,快车和慢车速度的比是5:4,慢车先从A站开出27千米,快车才从B站开出.相遇时快车和B站的距离比慢车和A站的距离多32千米,A、B两站相距多少千米?【分析】相遇时,快车一共比慢车多行了32千米,已知快车与慢车速度比是5:4,可得:共同行驶时,快车行了同时行驶路程的=,慢车行了同时行驶路程的 1﹣=,慢车先从A站开出27千米,快车才从B站开出,则在两车共同行驶的时间内,快车比慢车多行了32+27=59千米,两车共同行驶的路程为[59÷()];共同行驶的路程再加慢车先行的路程,就是两地的距离.【解答】解:(32+27)÷()+27=59÷+27=531+27=558(千米);答:A、B两站相距558千米.【点评】解答此题的关键是明白:快车实际多行的路程是(32+27)千米,再除以对应分率,就是共同行驶的路程,从而可以求得全程的距离.29.(8分)(2013•深圳)定义两种运算“#”、“※”,对于任意的两个整数a、b,a#b=a+b﹣1,a※b=a×b ﹣1.(1)计算3※[(6#8)#(6※2)];(2)如果x#(x※8)=61,求x的值.【分析】(1)首先理解两种运算“#”、“※”的规定,然后按照混合运算的顺序,有括号的先算括号里面的转化得出算式计算即可;(2)利用运算的方法转化为方程求得x的数值即可.【解答】解:(1)3※[(6#8)#(6※2)]=3※[(6+8﹣1)#(6×2﹣1)]=3※[13#11]=3※[13+11﹣1] =3※23=3×23﹣1=69﹣1=68;(2)x#(x※8)=61, x#(8x﹣1)=61, x+8x﹣1﹣1=61,9x=63, x=7.【点评】本题考查了学生读题做题的能力.理解两种运算的规定是解题的关键.。

2024学年广东省深圳市龙岗区百合外国语学校九年级上期中物理试卷

2024学年广东省深圳市龙岗区百合外国语学校九年级上期中物理试卷

2024-2025学年广东省深圳市龙岗区百合外国语学校九年级(上)期中物理试卷一、选择题(每题2分,共60分)1.(2分)下列现象中,不能用分子动理论说明的是()A.走进花园闻到花香B.放入水中的糖使水变甜C.看到烟雾在空中充满D.水和酒精混合总体积变小2.(2分)关于扩散现象,下列说法错误的是()A.温度越高,扩散进行得越快B.扩散现象是由物质分子无规则运动产生的C.扩散现象在气体、液体和固体中都能发生D.在太空中,扩散现象将消逝3.(2分)下列关于分子间作用力的说法错误的是()A.分子间有时只存在引力,有时只存在斥力B.固体很难被压缩是因为分子间存在斥力C.分子间引力和斥力总是同时存在D.气体分子相距很远,分子间的作用力可以忽视4.(2分)关于物体的内能,下列说法中正确的是()A.物体的运动速度越大,具有的内能越多B.静止的物体没有动能也没有内能C.静止的物体没有动能但有内能D.火红的铁块具有内能,冰冷的冰块没有内能5.(2分)下述现象中,通过做功变更物体内能的是()A.向手哈气,手会变温煦B.不断锻打铁块,铁块温度上升C.把烧红的工件放到冷水中,工件温度降低D.水盆里的水放到阳光下照耀,温度上升6.(2分)下列关于温度、内能和热量的说法,正确的是()A.物体汲取热量,温度肯定上升B.凡是物体温度上升,就肯定汲取了热量C.热量总是从内能大的物体传到内能小的物体D.物体的温度上升,内能肯定增加7.(2分)用相同的酒精灯分别对a、b两液体加热(如图甲),依据测得数据分别描绘出两液体的温度随时间变更的图象(如图乙)。

在相同的时间内两液体汲取的热量相等,不计液体热量散失,分别用m a、m b、c a、c b表示a、b两液体的质量和比热容,则结合图中信息作出的下列推断正确的是()A.若m a=m b,则c a>c b B.若m a=m b,则c a <c bC.若c a=c b,则m a=m b D.若c a=c b,则m a >m b8.(2分)株洲沿江风光带有一段人造沙滩,在炙热的夏天赤脚踩在沙滩上感觉烫脚,而站在湘江边的浅水滩处却感到凉快。

广东省百合外国语学校高中化学必修一第二章《海水中的重要元素—钠和氯》经典测试卷(培优练)

广东省百合外国语学校高中化学必修一第二章《海水中的重要元素—钠和氯》经典测试卷(培优练)

一、填空题1.氯水中含有多种成分,因而具有多种性质,根据新制氯水分别与如图四种物质发生的反应填空(a 、b 、c 、d 、e 中重合部分代表物质间反应,且氯水足量)。

()1氯水中含有的粒子有2H O 、2Cl 、___________、H+、Cl -、___________、OH -七种。

()2久置的氯水变为___________,原因是___________(用化学反应方程式表示);实验室保存饱和氯水的方法是___________。

()3b 过程中的离子方程式是___________。

()4e 过程中所发生的主要反应的化学方程式为___________。

()5能证明氯水具有漂白性的是___________填“a”、“b”、“c”或“d”)。

2.实验室用高锰酸钾和浓盐酸反应制备氯气:2KMnO 4+16HCl(浓)=5Cl 2↑+2MnCl 2+2KCl+8H 2O(1)用双线桥法标出上述反应方程式中电子转移的方向与数目___。

(2)上述反应中,氧化剂是___ (填化学式,下同),氧化产物___,浓盐酸体现了___性和____性,当有4mol 水生成的时候,转移的电子有___mol 。

(3)实验结束清洗仪器时,为了减少烧瓶中残留氯气对环境的污染,可以向烧瓶中加入的溶液是___(填写化学式),请用化学方程式表示该反应的原理___。

(4)若在标准状况下,将一个充满HCl 气体的集气瓶倒扣于盛水的水槽中,水充满整个集气瓶,(假设HCl 全部留在集气瓶内),则该集气瓶内溶液中HCl 的物质的量浓度为___mol/L 。

(保留三位小数)3.某课外实验小组从煤油中取出一块钠,用滤纸吸干其表面的煤油,用刀切下数块,分别进行实验研究。

(1)钠块切面表面迅速变暗,反应的化学方程式为______。

(2)将其中一块钠放入坩埚中加热,反应现象为:钠熔化并燃烧_______。

(3)将一小块钠放入燃烧匙中,加热,迅速伸入盛有氯气的集气瓶中,反应的化学方程式为______________。

2012年广东省深圳市百合外国语学校招生考试数学试卷(解析版)

2012年广东省深圳市百合外国语学校招生考试数学试卷(解析版)

15. (3 分)一件商品按 20%的利润定价,然后又打八折出售,结果每件亏损 36 元.这件商品的成本价是多少元? 16. (3 分)观察下列点振图的规律,并推理出图 8 个点的个数是 .
17. (3 分)6 月 2 日是分校的考试日期,图中小正方形的边长为 1,则黑字“6” 和“2”的面积是 (结果保留 π)
A.
B. 和
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D. 可以合并成一个长方体
2. (3 分)下列立体图形中,
3. (3 分)在一张圆片上画出 6 条直线,将一张圆片可最多分成的块数是( A.19 B.20 C.21 D.22

4. (3 分)A、B 两艘轮船在大海上航行,轮船 A 观测到轮船 B 的方位是北偏东 30°,此时轮船 B 观测到轮船 A 的方位是( )
10. (3 分)我国习惯用℃作温度的单位(摄氏温度) ,而有些国家习惯用℉作温 度的单位(华氏温度) ,它们之间的换算方法是:华氏温度减去 32,再乘以 5, 再除以 9,就是摄氏温度的数值.已知人体的正常体温是 37℃,用华氏温度则表 示为 ℉.
11. (3 分)该试题已被管理员删除 12. (3 分)在一个不透明的箱子里装有除颜色外都一样的相同数量的红球和黄 球.每次取出 5 个红球和 3 个黄球,取了 次后,红球没了,黄球还剩 6
A.北偏东 30° B.北偏东 60° C.南偏西 60° D.南偏西 30° 5. (3 分)如图所示,在△ABC 中,△ABC 的面积为 12,DC=3AD,EC=2BE,则 四边形 EODC 的面积与三角形 AOB 的面积差是( )
A.4
B.5
C.6
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D.7
6. (3 分)如图所示,由 27 个棱长为 1 的小正方体组成一个棱长为 3 的大正方 体,若自上而下和从前到后去掉中间的小正方体,则剩下的几何体的表面积是 ( )

深圳市百合外国语学校2023~2024学年度第一学期期中考试九年级化学试卷

深圳市百合外国语学校2023~2024学年度第一学期期中考试九年级化学试卷

深圳市百合外国语学校2023~2024年度期中考试九年级化学试卷一.选择题(共30小题,每题2分,共60分)1.请听厨房中几种物质的“谈话”,其中不包含化学变化的是()A.醋瓶:我摔碎了B.煤气:我燃烧了C.馒头:我变酸了D.蔬菜:我腐烂了2.下列一些物质的自我介绍,其中介绍自己化学性质的是()A.B.C.D.3.化学是一门以实验为基础的学科。

下列实验操作中,正确的是()A.加入粉末药品B.点燃酒精灯C.读取液体的体积D.滴加液体4.下列仪器不能加热的仪器是()A.试管B.量筒C.烧杯D.烧瓶5.下列实验现象描述正确的是()A.磷在空气中燃烧产生大量的白雾B.木炭在空气中燃烧发出淡蓝色火焰C.镁在氧气中燃烧发出耀眼的白光,生成黑色固体D.铁丝在氧气中剧烈燃烧,火星四射,生成黑色固体6.下列四种气体按体积分数计算,在空气中含量由小到大排列的是()①稀有气体②氮气③二氧化碳④氧气.A.③④①②B.①②③④C.③①④②D.②④①③7.图中不同小球代表不同原子,其中能表示化合物的是()A.B.C.D.8.物质由微观粒子构成。

下列由离子构成的物质是()A.汞B.水C.氢气D.氯化钠9.给3mL液体加热,需使用的仪器有()①试管②烧杯③试管夹④酒精灯⑤蒸发皿⑥陶土网⑦铁架台(带铁圈)A.①③④⑤B.②④⑥C.①③④D.②④⑧⑦10.医院给病人输氧时用到类似如图所示的装置,关于该装置,下列说法不正确的是()A.b导管连接供给氧气的钢瓶B.b导管连接病人吸氧气的塑料管C.使用该装置用来观测是否有氧气输出D.使用该装置用来观测氧气输出的速率11.下表列举了法拉第《蜡烛的故事》中涉及的部分问题及对问题的回答,其中“对问题的回答”属于“设计实验方案”的是()12.已知一个C﹣12原子的质量为akg,则实际质量为bkg的另一种原子的相对原子质量为()A.12b/a kg B.12b/a C.12a/b D.12a/b kg13.下列反应属于氧化反应,但不属于化合反应的是( ) A .水气氧气氢燃点+⎯⎯⎯→B .水+碳化氧二气氧醇乙燃点+⎯⎯⎯→C .碳化氧二气氧碳化氧一燃点+⎯⎯⎯→D .铜酸碳式碱气氧碳化氧二水+铜++⎯⎯→14.下列四种物质属于混合物的是( )A .冰水共存物B .洁净的空气C .液氧D .红磷15.卢瑟福的α粒子轰击金箔实验推翻了汤姆森在1903年提出的原子结构模型,为建立现代原子理论打下了基础.α粒子轰击金箔后的运动轨迹如图所示,通过这一实验现象获得的结论错误的是( ) A .金原子核质量较大,带正电 B .金原子原子核体积很小 C .金原子核比电子所占空间小得多 D .金原子是实心球体,紧密排列16.我市2023年城区环境空气质量优良天数达到299天,优良率达到了81.92%.现行空气质量日报中,未计入空气污染指数项目的是( ) A .SO 2 B .CO 2C .NO 2D .可吸入颗粒17.“宏观认识与微观探析”是化学学科核心素养之一。

2012-2014年深圳市百合外国语小升初真题集锦(下)

2012-2014年深圳市百合外国语小升初真题集锦(下)

2012年深外分学校语文考试真题1、作文:温暖的__________2、纳兰性德《长相思》填空。

以及《过故人庄》填空3、填空:《伯牙绝弦》:子期死,(),(),终身不复鼓。

答案:子期死,伯牙谓世再无知音,乃破琴绝弦,终身不复鼓。

4、一门父子3词客,是我国大名鼎鼎的哪三位大文豪?答案:苏洵、苏轼、苏辙5、写出水浒人物名字或绰号:黑旋风,吴用,林冲,浪里白条答案:黑旋风李逵豹子头林冲浪里白条张顺智多星吴用6、(1)、请写出“虽与之俱学,弗若之矣”的意思?(2)、你能说出为什么“弗若之矣”吗?(3)、“诲”字注拼音;还有一个注拼音的想不起来了。

答案:(1)、虽与之俱学,弗若之矣的意思应该是:虽然他们一起学习,但另一个学下棋的人学得却不如前一个好(2)、这个应该在文中就有答案的,后面一句应该是:为是其智弗(fú)若与(yú)?曰:“非然也。

”(难道是因为他的智商不如前一个人吗?说:不是这样的)(3)、诲:huì,教诲,教导。

7、王之涣《凉州词》填空:__________________,春风不度玉门关。

答案:羌笛何须怨杨柳8、刘禹锡《望洞庭》填空:_________________,白银盘里一青螺。

答案:遥望洞庭山水翠9、(1)绿树村边合 , _______________ .(2)山一程,水一程,_____________ , _________________ .(3)《浣溪沙》中表达作者广大的胸怀的是那句_______________ , _______________ .(4)石灰吟中表达作者高尚气节的是哪句_______________ , _______________ .答案:(1)绿树村边合,青山郭外斜。

孟浩然《过古人庄》(2)山一程,水一程,身向榆关那畔行,夜深千帐灯。

风一更,雪一更,聒碎乡心梦不成,故园无此声。

(3)谁道人生无再少?门前流水尚能西。

(4)粉骨碎身浑不怕,要留清白在人间。

广东省百合外国语学校人教版七年级上册数学 压轴题 期末复习试卷及答案-百度文库

广东省百合外国语学校人教版七年级上册数学 压轴题 期末复习试卷及答案-百度文库

广东省百合外国语学校人教版七年级上册数学 压轴题 期末复习试卷及答案-百度文库一、压轴题1.如图,在数轴上的A 1,A 2,A 3,A 4,……A 20,这20个点所表示的数分别是a 1,a 2,a 3,a 4,……a 20.若A 1A 2=A 2A 3=……=A 19A 20,且a 3=20,|a 1﹣a 4|=12.(1)线段A 3A 4的长度= ;a 2= ; (2)若|a 1﹣x |=a 2+a 4,求x 的值;(3)线段MN 从O 点出发向右运动,当线段MN 与线段A 1A 20开始有重叠部分到完全没有重叠部分经历了9秒.若线段MN =5,求线段MN 的运动速度. 2.已知∠AOB =110°,∠COD =40°,OE 平分∠AOC ,OF 平分∠BOD . (1)如图1,当OB 、OC 重合时,求∠AOE ﹣∠BOF 的值;(2)如图2,当∠COD 从图1所示位置绕点O 以每秒3°的速度顺时针旋转t 秒(0<t <10),在旋转过程中∠AOE ﹣∠BOF 的值是否会因t 的变化而变化?若不发生变化,请求出该定值;若发生变化,请说明理由.(3)在(2)的条件下,当∠COF =14°时,t = 秒.3.综合试一试(1)下列整数可写成三个非0整数的立方和:45=_____;2=______.(2)对于有理数a ,b ,规定一种运算:2a b a ab ⊗=-.如2121121⊗=-⨯=-,则计算()()532-⊗⊗-=⎡⎤⎣⎦______. (3)a 是不为1的有理数,我们把11a-称为a 的差倒数.如:2的差倒数是1112=--,1-的差倒数是()11112=--.已知12a =,2a 是1a 的差倒数,3a 是2a 的差倒数,4a 是3a 的差倒数,……,以此类推,122500a a a ++⋅⋅⋅+=______.(4)10位裁判给一位运动员打分,每个人给的分数都是整数,去掉一个最高分,再去掉一个最低分,其余得分的平均数为该运动员的得分.若用四舍五入取近似值的方法精确到十分位,该运动员得9.4分,如果精确到百分位,该运动员得分应当是_____分.(5)在数1.2.3...2019前添加“+”,“-”并依次计算,所得结果可能的最小非负数是______(6)早上8点钟,甲、乙、丙三人从东往西直行,乙在甲前400米,丙在乙前400米,甲、乙、丙三人速度分别为120米/分钟、100米/分钟、90米/分钟,问:______分钟后甲和乙、丙的距离相等.4.如图,已知数轴上点A表示的数为8,B是数轴上位于点A左侧一点,且AB=22,动点P从A点出发,以每秒5个单位长度的速度沿数轴向左匀速运动,设运动时间为t(t>0)秒.(1)出数轴上点B表示的数;点P表示的数(用含t的代数式表示)(2)动点Q从点B出发,以每秒3个单位长度的速度沿数轴向右匀速运动,若点P、Q同时出发,问多少秒时P、Q之间的距离恰好等于2?(3)动点Q从点B出发,以每秒3个单位长度的速度沿数轴向左匀速运动,若点P、Q同时出发,问点P运动多少秒时追上点Q?(4)若M为AP的中点,N为BP的中点,在点P运动的过程中,线段MN的长度是否发生变化?若变化,请说明理由,若不变,请你画出图形,并求出线段MN的长.5.已知有理数a,b,c在数轴上对应的点分别为A,B,C,且满足(a-1)2+|ab+3|=0,c=-2a+b.(1)分别求a,b,c的值;(2)若点A和点B分别以每秒2个单位长度和每秒1个单位长度的速度在数轴上同时相向运动,设运动时间为t秒.i)是否存在一个常数k,使得3BC-k•AB的值在一定时间范围内不随运动时间t的改变而改变?若存在,求出k的值;若不存在,请说明理由.ii)若点C以每秒3个单位长度的速度向右与点A,B同时运动,何时点C为线段AB的三等分点?请说明理由.6.结合数轴与绝对值的知识解决下列问题:探究:数轴上表示4和1的两点之间的距离是____,表示-3和2两点之间的距离是____;结论:一般地,数轴上表示数m和数n的两点之间的距离等于∣m-n∣.直接应用:表示数a和2的两点之间的距离等于____,表示数a和-4的两点之间的距离等于____;灵活应用:(1)如果∣a+1∣=3,那么a=____;(2)若数轴上表示数a的点位于-4与2之间,则∣a-2∣+∣a+4∣=_____;(3)若∣a-2∣+∣a+4∣=10,则a =______; 实际应用:已知数轴上有A 、B 、C 三点,分别表示-24,-10,10,两只电子蚂蚁甲、乙分别从A 、C 两点同时相向而行,甲的速度为4个单位长度/秒,乙的速度为6个单位长度/秒.(1)两只电子蚂蚁分别从A 、C 两点同时相向而行,求甲、乙数轴上相遇时的点表示的数。

深圳百合外国语小升初考试数学试题及答案

深圳百合外国语小升初考试数学试题及答案

深圳百合外国语小升初考试数学试题及答案DA外国语小升初考试数学E C8.把一个最简分数的分子扩大到原来的2 倍,分母缩小到原来的1后等于24,这个分数是().一、判断题(每题 2 小分,共10 分)1.()在一个圆形时钟的表面,若现在时间恰好是12 点整,则经过15 分钟后,分针和时针A.710【答案】AB.75C.14102 5D.145第一次成直角.【答案】×2.()有红、黄、蓝三种信号旗各若干面,把任意两面从上到下放在一起表示不同的信号,可以组成15 种信号.【答案】×3. ()25 千米的20%与20 千米的25%相等.【答案】√9.某人只记得友人的电话号码是852309 ⨯⨯,还记得各数字不重复,要拨通友人的电话,这个人最多拨()次.A.8 B.9 C.12 D.7【答案】C10.下列图形中为正方体的平面展开图的是().4.()一杯糖水,糖占糖水的110【答案】×,则糖与水的比为1:10.【答案】CA B C D5.()在7:13 的前项加6,要使比值不变后项也要加6.【答案】×二、选择题(每题 2 小分,共20 分)6.“两件进价一样的商品,一件降价20% 后出售,另一件提价20% 后出售,这两件商品卖出后结果是().A.赚了B.赔了C.不赚不赔D.无法确定【答案】C7.如图,三角形ABC 和三角形DEC 都是等腰直角三角形,阴影部分是正方形,如果三角形ABC的面积是54 平方厘米,那么三角形DEC 的面积是()平方厘米.A.54B.48C.24D.50【答案】B 1.百合外国语的一座教学楼长 150 米,宽90 米,在一张学校平面图上用 30 厘米的线段表示教学楼的长,那么该平面图的比例尺为().A.1:500B.1:300C.3:1500D.3:900【答案】A12.芳芳到文具店买东西后又按原路返回,去时每分钟行b 米,回来时每分钟行a 米,求芳芳来回的平均速度的正确算式是().A.2÷11a b⎛⎫+⎪⎝⎭B.(a +b)÷2C.1÷11a b⎛⎫+⎪⎝⎭D.2÷(a +b)【答案】A深圳百合外国语小升初考试数学试题及答案AD 4 :13. 若双休日,甲商场以“打九折”的措施优惠,乙商场以“满 100 送 10 元购物券”形式促销,妈妈打算花掉 500 元,她在( )商场购物合算一些. A .甲、乙都可以 B .甲 C .乙 D .无法确定【答案】B14. 边长为整数并且最大边长是 5 的三角形共有( ).A .5 个B .7 个C .9 个D .11 个【答案】C20. 一项工程,单独做,甲要 10 天完成,乙要 15 天完成.开始两人一起干,因工作需要,甲中途调走,结果乙一共用了 9 天完成.甲中途调走了 天.【答案】521. 如图,已知小圆的面积均为4π cm 2(π 取 3.14),则图中阴影部分的面积是 cm 2 .【答案】815. 某公司员工分别在 A 、B 、C 三个住宅区,A 区有 30 人,B 区有 15 人,C ,区有 10 人,三个区在一直线上,位置如图所示,公司的接送车打算在此间只设一个停靠点,为要使所有员工步行到停靠点的路程总和最少,那么停靠点的位置应在( )区.四、 解方程(每题 4 分,共 8 分)22.A .A 区B .B 区C .C 区D .一样多【答案】A23. 7x - 2 = 8 - 5x 解:12x = 10x = 5621 三、 填空题(每题 3 小分,共 18 分)16. 一个圆锥高 2 米,底面周长 9.42 分米,它的体积是 立方分米( π = 3.14 ).【答案】47.117. 小惠今年 6 岁,爸爸今年年龄是她的 5 倍, 年后,爸爸年龄是小惠的 3 倍.【答案】618.每次考试满分 100 分,小新 4 次考试平均成绩 90 分,为了使平均成绩尽快达到 95 分。

广东省百合外国语学校新初一分班英语试卷含答案

广东省百合外国语学校新初一分班英语试卷含答案

广东省百合外国语学校新初一分班英语试卷含答案一、单项选择1.Bob can see some _____ on the farm. ( )A.horse B.a horse C.horses2.Helen _________ beautifully and she likes _________ very much. ( )A.dances; dancing B.dancing; dances C.dance; dance D.dance; to dance 3.One day, a mouse _____ by and _____ the lion up. ( )A.walk; woke B.walked; woke C.walked; wake 4.Before you cross the road, you must _____ cars. ( )A.look out at B.look out for C.look out of5.Mike and his classmates are talking ________ their plans ________ the weekend. ( ) A.to; about B.about; for C.with; to6.A: Did the two men ________ the lion that day? ( )B: No, they didn't.A.caught B.catch C.catches7.—_______ your aunt play badminton yesterday? ( )—No, she _______ basketball.A.Did; play B.Did; played C.Do; play8.The boys and girls were happy ________ Lily’s birthday party last night. ( )A.for B.at C.of9.She __________ clothes last weekend. ( )A.wash B.washed C.washing10.I’m going to watch some children’s shows on TV _______. ( )A.before B.last night C.tomorrow11.—_____ Lily usually read books in the morning? ( )—No, she _____.A.Do; aren’t B.Does; does C.Does; doesn’t 12.It’s a nice day. Let’s ______ a picnic this afternoon. ( )A.going to have B.having C.have D.to have13.I ________ camping yesterday. ( )A.go B.goed C.went14.He _______ his bike and hurt his foot. ( )A.fall B.fell off C.falls off15.The shop is near. We can go there _________. ( )A.on foot B.by subway C.by train16.There were ______ buses ______ subways in the Tang dynasty. ( )A.not; and B.no; and C.no; or17.—What’s your pen pal’s hobby? ( )—She likes ______.A.drawing cartoons B.cooking food C.doing word puzzles 18.My pencil is 15 __________. I often write English with it. ( )A.kg B.cm C.mm19.There isn’t _________ coffee in the cup. ( )A.some B.much C.many20.I went _________ a holiday. ( )A.to B.on C.with二、用单词的适当形式填空21.—_______ (do) you go swimming? —Yes, I did.22.An elephant is _______ (heavy) than a tiger.23.______ (do not) be sad. Your friend will be well soon.24.Let’s go _______ (swim) together with Rose’s uncle.25.The ______ (drive) are talking about the traffic rules.26.The girl often ______ (help) her mother ______ (do) housework last year.27.There ______ (be) some meat and vegetables in the fridge.28.You _________ (see) the Great Wall in China next week.29.The boy was not _________ (excited) at the party.30.Let’s finish _________ (they) _________ (quick).三、完成句子31.Will you s_____ a birthday song on your birthday?32.She always f________ her homework before dinner.33.Liu Tao is a good boy. He has some ____________ (好习惯).34.Mike always goes to school e______.35.To keep s_____, we mustn’t play on the road.36.It’s a big book. There are lots of words in it. It’s our teacher. It helps us understand the new words. It’s a d______.37.He runs f____________than me.38.Wang Yaping gave her daughter a g_____ when she came back to the earth. That was a star. 39.Look! That’s the t_____ dinosaur in this hall.40.—W_____ feet a_____ bigger than yours?—My m_____.四、完形填空41.Mike is an Englishman. He lives in a ___41____ building in the ___42____ London. There are eighteen floors in the building and he lives on the fifteenth floor. He ___43____ a lift(电梯) to goup and down. He works very hard. He ___44____ to work early. Every day he leaves his___45____ and walks to the lift. He gets into the lift. It ___46____ him down to the first floor. He gets out of the lift. Then he walks to ___47____ bus stop. The bus stop is in front of a station. It is about two hundred meters from ___48____ home. Usually, he catches the number 11 bus to work, but sometimes he goes ___49____. He works in a factory about ten ___50____ from his home. His work starts at half past eight, and finishes at a quarter to five. He gets back home at half past.41、A.tall B.short C.long42、A.country B.town C.city43、A.makes B.uses C.does44、A.begins B.want C.goes45、A.home B.building C.office46、A.gets B.takes C.brings47、A.an B.a C.the48、A.his B.he C.him49、A.by plane B.by taxi C.on foot50、A.meters B.kilometers C.hours五、阅读判断42.阅读短文,判断正误,正确的用“T”表示,错误的用“F”表示。

广东省百合外国语学校英语新初一分班试卷含答案

广东省百合外国语学校英语新初一分班试卷含答案

广东省百合外国语学校英语新初一分班试卷含答案一、单项选择1.—What did you do last night? ( )—_____A.He saw a film. B.I see a film. C.I saw a film.2.Sam is ______ about Bobby’s plans. ( )A.excite B.exciting C.excited3.I want to fly a spaceship _______ the Moon. ( )A.to B.for C.of4.My aunt is a ________. She likes ________. ( )A.cooker; cook B.cooker; cooking C.cook; cooking5.I felt ill yesterday, so I only ate ________ rice. ( )A.a little B.a few C.a lot of6.The children are ______ about the ______ football game. They're shouting ______ in the playground. ( )A.excited; exciting; excitedly B.exciting; excited; excitedly C.excitedly; exciting; excited 7.—_________ will you stay in Baoding? ( )—For three weeks.A.How many B.How long C.When8.—________ I go to bed now? ( )—No, you can’t. You ________ brush your teeth before bedtime.A.Can; must B.Must; must C.Can; can’t9.I’m my camera now. It was in my bag yesterday. ( )A.looking for B.finding C.looking at10.Bob can see some _____ on the farm. ( )A.horse B.a horse C.horses11.—______ you go to the supermarket yesterday? ( )—No, I read books in the library.A.Did B.Do C.Does12.He and his mother _____ going shopping. ( )A.is B.are C.be D.am13.You're ________ than me. ( )A.old B.older C.big14._______ I'm going to visit the moon. ( )A.Last Monday B.One day C.Five days15.—Did you _______ badminton with Mike? ( )—Yes, I did.A.play the B.play C.played16.This building has ______ floors. Our classroom is on the ______ floor. ( )A.four; two B.four; second C.fourth; two17.This is _________. Students all read books in it. ( )A.gym B.library C.shop18.I ______ like pink before, but now I like it very much. ( )A.wasn’t B.didn’t C.doesn’t19.I went _________ a holiday. ( )A.to B.on C.with20.—______ was your weekend? ( )—It was fine.A.What B.How C.Where二、用单词的适当形式填空21.Jane is ______ than me. (thin)22.I ________ to a forest park last Saturday (go)23.______ (do not) be sad. Your friend will be well soon.24.The monkey's tail is _____ (long) than the rabbit's tail.25.There ________ (be) a lot of computer rooms in my old school.26.My parents give _______ (they) some gifts.27.—Did you go to the nature park?—Yes, I ________ (take) many pictures there.28.My ________ (foot) are bigger than yours.29.Look, Yang Ling is dancing ________ (beautiful).30._______ (eat) a lot of food before bedtime is not good for our _______ (healthy).三、完成句子31.Chinese people have the Labour Day holiday in M______.32.I will ____________ (回去) Xinghua this summer holiday.33.The policeman is very tall and ________ (强壮的).34.I’m going to have dinner with my family in the r_____.35.I have a pen friend, and we always send an e______ to each other by computer.36.I’m 50 k____________.37.—What do you often do on the weekend?—I often read books and _________ _________ (画漫画).38.There are seven days in a _________________.39.What did you d_______ last weekend?40.Tom s_____ in the lake yesterday.四、完形填空41.Mike and Jack live near a beautiful park. They like _41__ to the park _42__ Saturday. They usually _43__ some food and drinks there. Sometimes they _44__ kites. Sometimes they go _45__.Last Saturday, there _46__ a special fashion show in the park. Mike, Jack and their friends _47__some paper and plastic bags. They reused _48__ to make _49__. They made some paper T-shirts and _50__. They all looked cool.41、A.go B.goes C.going42、A.last B.every C.next43、A.bring B.brought C.brings44、A.flew B.fly C.flying45、A.boat B.boats C.boating46、A.was B.were C.is47、A.collect B.collected C.collecting48、A.it B.they C.them49、A.food B.clothes C.doll50、A.dress B.some dress C.dresses五、阅读判断42.阅读短文,判断下列句子与短文内容是(T)否(F)相符。

广东省深圳百合外国语学校2024届九年级英语第一学期期末复习检测试题含解析

广东省深圳百合外国语学校2024届九年级英语第一学期期末复习检测试题含解析

广东省深圳百合外国语学校2024届九年级英语第一学期期末复习检测试题注意事项:1.答卷前,考生务必将自己的姓名、准考证号、考场号和座位号填写在试题卷和答题卡上。

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将条形码粘贴在答题卡右上角"条形码粘贴处"。

2.作答选择题时,选出每小题答案后,用2B铅笔把答题卡上对应题目选项的答案信息点涂黑;如需改动,用橡皮擦干净后,再选涂其他答案。

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考试结束后,请将本试卷和答题卡一并交回。

Ⅰ. 单项选择1、me a chance and I’ll bring you a surprise.A.Give B.Giving C.Gives D.To give2、Young people today should develop the habit of thinking by .A.himself B.them C.themselves3、The sports meeting will continue ___it rains this afternoon.A.if B.since C.as soon as D.unless4、Many people do not realize the importance of health ______ they have fallen ill.A.until B.while C.when D.after5、—Green Book is on now. Would you like to go to the cinema with me?—No. thanks. I it twice.A.see B.saw C.have seen D.will see6、Whenever we had a meeting, he was never late, which impressed us much with his sense of __________.A.humor B.time C.art7、Music helps us _______ /rɪ'læks/ a lot when we feel tired .A.read B.red C.rest D.relax8、Which of the following suffixes CANNOT be used to make a noun?A.-less B.-ness C.-tion D.-ment9、—Must I put on the sweater?—No, you _____. It’s up to you.A.needn’t B.can’t C.shouldn’t D.mustn’t10、Mr. Green is very strict with his children, and he ______ allows them to watch TV on school days.A.always B.usually C.sometimes D.neverⅡ. 完形填空11、My earliest memory of dad is grabbing (抓住) his hand while we walked together. As I 1 older, I remembered my father and I listened to many basketball games on the radio. I always fell asleep 2 the game was over. When I woke up in the morning, the score sheet (计分表) with the 3 score on it would be lying next to me. I’ll always remember that.On cold mornings my father would drive his bread truck by the house. I used to ride on the floor of that bread truck as he delivered (分送) the bread to the stores. The 4 and the warmth from the bread made me hungry and kept me warm. I’ll alw ays remember that.My father would attend all my games. One night before an important game my father told me 5 that he wouldn’t be able to watch the game because he had to deliver the bread and it was a three-hour 6 from his route. The next day as the game time drew near, I thought about my dad. I happened to look across the field and 7 saw his bread truck pulling into the stadium. He tried to make the game. I’ll always remember that.Years later I became a teacher. I’ll never forget the voice o n the phone early one morning telling me dad had just been killed in a traffic accident. I could hear my heart beat in my ears. I 8 up the phone and went back to my bedroom. After that nothing was very important to me. One day I was on the playground when a little boy walked up to me and grabbed my hand. His hand held mine the 9 way I used to hold my father’s by the last two fingers. At that moment I found my 10 in life again. You see even though my father was gone, he left something with me. He left me his smile, spirit and touch. My purpose was to use those gifts as he did. From that day I started. I’ll always remember that! 1.A.went B.changed C.turned D.grew2.A.when B.although C.because D.before3.A.public B.final C.official D.lucky4.A.smell B.color C.taste D.shape5.A.happily B.sadly C.slowly D.simply6.A.ride B.walk C.race D.drive7.A.successfully B.peacefully C.surprisingly D.unusually8.A.set B.picked C.put D.hung9.A.strange B.safe C.same D.special10.A.pleasure B.purpose C.problem D.progressⅢ. 语法填空12、A man was walking through a large city. On a street corner,he saw a boy 1.(sell) a number of small birds in a cage(笼子).He looked at the birds flying about in the cage and 2.(try)to get out. He stood for some time looking at the birds .At last he said to 3.(冠词)boy,“How much do you ask for your birds?” “Fifty cents a bird,sir,” said the boy. “I 4.(not) mean how much a bird,” said the man,“ 5.(连词)how much for all of them? I expect to buy 6.(it)all.”The boy began to count,and foun d they came to five dollars. “There is your money,” said the man. The boy took it 7.(happy).Then the man opened the cage door as quickly as he could,and let all the birds 8.(fly)away.The boy,in great surprise,cried,“What did you do that9.(介词),sir?You have lost all your birds.”“I will tell you why I did it,” said the man.“ I has been shut up for three years in a prison(监狱), and I10.decide) never to see anything in prison which I can make free.”Ⅳ. 阅读理解A13、In almost every big university in the USA, football is a favorite sport. American football is not like soccer. Players sometimes kick the ball, but they also throw the ball and run with it. They try to take it to the other end of the field. They have four chances to move the ball ten yards. They can carry it or throw it, If they move it to the end of the filed, they receive six points. This is called a touch down.It is hard to move the ball. Eleven men in the team try to stop the man who has the ball. If the man does not move the ball ten yards, his team kicks the ball to the other team.Each university wants its team to win. Thousands of people come to watch. They all yell for their favorite team. Young men and women called cheerleaders come on the field to help the people yell more. They dance and jump while they yell. Each team plays ten or eleven games each season. The season begins in September and ends in November. If a team is very good, it may play another game after the season ends. The best teams play again on January 1, the first day of the New Year. Many people go to see these games and many others watch them on TV.1.In America, football players can _______.A.only kick the ballB.only throw the ballC.kick, throw and carry the ballD.do anything they like2.If a team wants to get points , it has to move the ball _____.A.10 yards B.to the other endC.away from its own end D.to the other team3.Most teams begin to play games in _______.A.September B.OctoberC.November D.each seasonB14、“BANG!” the door caused a reverberation. It was just standing there, with father standing on one side, andI on the other side.We were both in great anger. '"Never set foot in this house again!” stormed father. With tears in my eyes, I rushed out and ran along the street.The street lights were shining, causing rather sad feeling. I walked aimlessly.A young father who held a child in his arms walked past me. I felt as if I saw my childhood from another space: happy and carefree.But now ... I don't know whether it is because I have grown up or because dad is getting old. We differ in our ways of thinking. He always put his opinions on me. We are just like two people coming from two different worlds. It feels like there is an iron door between us that can never be opened.My heart was frozen on this hot summer night. As I walked on, there were fewer and fewer people on the streets, until I had only the street lights to keep me company. When I finally reached my house, I saw that the light was still on.“Perhaps dad is throwing away some of his old stamps.” I thought, “Perhaps he thought they were useless.” I never had the courage to tell him that I liked collecting stamps.All the lights were off except father's.Dad was always like this. Maybe he didn't know how to express himself. After shouting at me, he never showed any moments of regret. After an argument he had the habit of creeping up in my sleep and then tucking me underneath the covers.This was how he always was. He has been a leader for so long that telling everyone else what to do has become his second nature.The light was still on. “Am I wrong?” I thought, maybe... With the key in hand, I opened the door nervously. When I opened the door, tears ran down my cheeks. I suddenly realized that the iron door that I had imagined between us did not exist at all. Love---it's second to none.1.When seeing a young father with a child in his arms, the writer might have the following feelings EXCEPT____.A.he admired them very muchB.he felt disappointed with his fatherC.he felt that happiness had been far away from himD.he wished for better relations with his father2.What did the writer mean by the underlined sentence “My heart was frozen on this hot summer night” in Paragraph 6?A.He felt cold on such a hot day. B.He felt low and didn't know where to go at all.C.He felt uncomfortable because it was so hot tonight. D.He felt lonely because there were so few people on the street. 3.The underlined word “they” in Paragraph 7 refers to _____.A.stamps B.opinions C.worlds D.lights4.What can we infer about the reason why the father often shouts at his son?A.The son has already grown up. B.They never agree with each other.C.The father is getting older and older. D.The father has got used to doing that.5.Which of the following is true according to the passage?A.The father opened the door for the son.B.The father didn't agree the writer's stamp collecting.C.The father and the son didn't usually communicate well.D.The son fully understood why he and his father had different thinking.C15、根据表格,选择正确答案1.The train from Beijing to Shenyang leaves at .A.5:05 B.6:35 C.8:352.We have to spend on the train if we go to Shenyang from Beijing.A.17 hours and 50 minutesB.6 hours and 25 minutesC.11 hours and 15 minutes3.If you want to go to Chengdu from Taiyuan, you can take the train.A.No. 11 B.No.185 C.No. 2714.The No. 186 train arrives in Taiyuan at .A.10:50 am B.22:50 C.5:05 am5.It takes hours from Tianjin to Beijing by train.A.about 2 B.30 minutes C.about 1D16、Huw Thomas fell in love with Megan. But then an accident changed his life, and he had to move to Canada. Megan promised to write to him. But Huw never heard from her … until one day a letter arrived.He saw the letter came from where he and his father had lived in their early years. Who was writing to him? He turned the envelop(信封) over in his hands several times. Then he took out the letter and read:Dear Huw,I don't know if this letter will reach you, and I don't really know why I'm writing to you after all these years, but …Huw turned to the end of the letter and saw:Best wishesMeganHe couldn't believe it. He turned back to the first words of the letter and read:After all these years, but I've just found your letter to me from Canada. Believe me, this was the first time I'd read them and they made me cry, even after 50 years. I found them in a box of my father's papers. They were never opened. Huw, I never knew that you'd written to me. I thought your new life in Canada had made you forget me. Now I realize that my father kept your letters. I can still remember asking him if there was any letter for me, and he always said,“__▲__,my girl. I told you he was no good.” Finally, after about a year, I believed him.But why did he keep the letters? Do you think he wanted me to find them when it was too late? Anyways, he's dead now, so I can't ask him. All I can say is I'm sorry. Sorry for what my father did, sorry that you never heard from me and sorry for… everything.I hope that at least this letter reaches you. Of course, I'll understand if you don't want to write back to me, but if you do.I am still Megan Jenkins, and I will live at the same address.Best wishes,MeganHuw read the letter again. Everything with Megan came back to him. He had never forgotten her. He couldn't. Every day he looked at her face on the wall. He had a drawing of her. It had travelled everywhere with him. But to hear from her again …“Are you all right, Dad” asked Mike, coming into the room.1.Why did Huw turn to the end of the letters before he finished the rest of it?A.Because he was not interested in the beginning.B.Because he didn't like to read letters from Megan.C.Because he wanted to finish reading it in a short time.D.Because he wanted to know whom the letter was from.2.Megan failed to read Huw's letters because ________.A.her father kept themB.they were lost on the wayC.she moved to another cityD.he didn't post them at all3.Which of the following sentences can be put in the __▲__?A.Sorry, it's my faultB.Look up hereC.No, he has forgotten youD.Y es, here are the ones from him4.What can we infer from the passage?A.Huw had never got married all these years.B.Megan was still living with her father in Canada.C.Megan was sure that Huw would receive her letter.D.Megan still loved Huw and felt sorry for what had happened.E17、What is the best-selling book in the world? Is it the Harry Potter series or Secret Garden? According to the Guinness World Records, the Xinhua Dictionary, published by the Commercial Press in China, is the world’s most populardictionary and the best-selling book.In 1950, Chinese language experts(专家) andscholars, Wei Jiangong and Ye Shengtao, started to edit(编辑) the Xinhua Dictionary. There was a lot of discussion, research and paper work. Some hand scripts (稿件) were checked again and again like compositions, People’s Daily reported. Many people’s hard work and interesting stories went into making the dictionary.In 1953, the first Xinhua Dictionary was published. Today, 567 million copies of the dictionary have been sold worldwide.However, revisions (修订) to the dictionary continue to be made. According to Yu Guilin from Commercial Press, editors(编辑) usually summarize (总结) the meaning of words again while revising. If the example sentences are out of date, editors need to have experiences and make new examples. “To give a correct explanation of the word ‘焗油(deep condition)’ , one editor went to a barber shop (理发店) to experience it for himself,” Yu told the Beijing Times. So far, the Xinhua Dictionary has been revised 11 times.To keep up with the times, some popular and widely used internet words are also added to the dictionary. For example, in the 11th edition, the phrases “晒工资(show off salary)” and “晒照片(show off pictures)” were included.All these efforts create the “National Dictionary” of China. The Xinhua Dictionary is not only a useful tool for generations of Chinese people. It also helps foreigners who are learning the Chinese language and culture. 1.According to Guinness World Records, the best-selling book is _____.A.the Xinhua DictionaryB.the Harry Potter seriesC.Secret GardenD.Guinness Book of World Records2.What’s the meaning of the underlined word “scholars” in the second paragraph?A.校长B.学长C.学者D.学生3.Which of the following is NOT true about the first Xinhua Dictionary?A.Wei Jiangong and Ye Shengtao edited it.B.The editors had a lot of discussions, did research and paper work.C.The editors checked the hand scripts again and again.D.The first Xinhua Dictionary was published in 1950.4.While revising the dictionary, the editors _____.A.just need to read and correct the printing mistakesB.make new examples for the wordsC.have to go to a barber shop to experience deep conditioningD.have to change all the examples of the words5.According to the article, the Xinhua Dictionary _____.A.has to include internet wordsB.is little help for foreign learnersC.is better than any other dictionaryD.tries to keep up with the timesF18、Two policemen stopped Andrew Kershaw in his sports car one night, because he was speeding in the street of the town. The young man was very drunk. He knew he was in trouble, so he decided to make fun of them. He was a law student at the university, so he knew the law very well, better than most people.When the policemen came to his car, Andrew asked one of the policemen to write down in his notebook everything they said. The policemen had to do this because it is the law, although people usually don’t know it. The policemen tested Andrew’s breath and the breathalyzershowed that he had too much alcohol in his blood. This all took a long time because the policemen had to write down everything that he and the policemen said.In the end, by law, the policemen had to ask Andrew if he wanted to say anything. Andrew decided that he had two things to say and the policemen had to write down. The first thing was “Please don’t hit me again, officer”. And the second thing was “Does the other officer want £5, too?” Of course, the poor policeman had to read this in court, in front of the judge , and he was very embarrassed. Andrew, who was in court, thought it was very funny, until the judge took away his license for a year and fined(罚款)him £100, £90 for drunk driving, and £10 for his rudeness!1.The policemen stopped Andrew in his car because __________.A.it was very late B.he was drunkC.he was driving too fast D.he hardly broke the law2.The underlined word “breathalyzer” means __________.A.a tool used for repairing machinesB.a machine used for examining patientsC.a person who is in charge of giving breath testD.an instrument(仪器)used for testing and analyzing(分析)one’s breath3.Andrew made fun of the policemen, only __________.A.to be praised by the judgeB.to be asked by the judgeC.to be taken away by the judgeD.to be punished by the judgeⅤ.书面表达19、书面表达1.Write a review(评论)of the following story in about 120 words.The review has to include the following points.(阅读下面的故事,请根据下面的提示,写出一篇约120词的评论).The title of your review.(你撰写的评论的标题.)Your idea(s),examples and the reason(s)for unhappiness and happiness in the story.(你归纳的关于故事中幸福和不幸福的观点,举例子并说明原因.)Your idea(s)of happiness,examples for happiness in your daily life.(归纳你在日常生活中关于幸福的观点,并举例说明.)Y our conclusion about happiness.(关于幸福的结论.)The words you may use.(你可能用到的词)be satisfied with(对……满意)desire n.欲望contentment 知足the key(关键)to happiness.A long time ago,in a rich and beautiful country,there lived an unhappy king.He slept badly and didn't feel like eating.He often cried for no reason.This made the queen and his people worried.So they called a doctor to examine him.But he found nothing wrong with his body.He said what the king needed was the shirt of a happy person to wear.That would make him happy.The prime minister was called to the palace.But when they explained the king's situation to him,he said,"Although I have a lot of power,it doesn't make me happy.I'm always worried about losing my power."Then the king's banker came to say,I'm afraid I'm not happy either.I have a lot of wealth,but I'm always worried about losing money.Someone tries to steal my money.Next,the palace singer was called to say,"I'm famous but I'm not happy because I'm worried about being followed by others.I can't be free."Finally,the top general was told to go out to find a happy man.He searched and searched but couldn't find anyone.Everyone seemed to have their own problems,and no one was truly happy.Just as he wanted to give up.he saw a poor man on the street.He was eating with his hands and singing happily to himself.The general went to him and said,"What makes you so happy?You have no power,money,or fame." The man said,"I have everything I want.and I don't want what I can't have.So I'm happy,and my song comes from the happiness in my heart.""Can you give your shirt to me,I need it,"said the general."What shirt?I don' t have any shirts."answered the man.参考答案Ⅰ. 单项选择1、A2、C3、D4、A5、C6、B7、D8、A9、A10、DⅡ. 完形填空11、1.D2.D3.B4.A5.B6.D7.C8.D9.C10.BⅢ. 语法填空12、1.selling2.trying3.the4.don’t5.But6.them7.happily8.fly9.for10.decidedⅣ. 阅读理解13、1.C2.B3.A14、1.B2.B3.A4.D5.C15、1.B2.C3.B4.C5.A16、1.D2.A3.C4.D17、1.A2.C3.D4.B5.D18、1.C2.D3.DⅤ.书面表达19、My Thoughts about HappinessPower, wealth, and fame can't always make people happy. For example, the rich people were unhappy, because they are afraid of losing money, while the poor people was truly happy because he was satisfied with what he could have.What can always make me happy?Happiness is always in my heart and is easy to find if I pay more attention to what I have. For instance, enjoying the beautiful sunshine after a cloudy day, getting a glass of water from mother whenI am studying, getting help from my friends when I am in trouble and so on. These are the moments when I am happy. All in all, don't think about what you can't have. Contentment is the key to happiness.。

广东省深圳百合外国语校2024届中考考前最后一卷数学试卷含解析

广东省深圳百合外国语校2024届中考考前最后一卷数学试卷含解析

广东省深圳百合外国语校2024年中考考前最后一卷数学试卷注意事项:1. 答题前,考生先将自己的姓名、准考证号填写清楚,将条形码准确粘贴在考生信息条形码粘贴区。

2.选择题必须使用2B 铅笔填涂;非选择题必须使用0.5毫米黑色字迹的签字笔书写,字体工整、笔迹清楚。

3.请按照题号顺序在各题目的答题区域内作答,超出答题区域书写的答案无效;在草稿纸、试题卷上答题无效。

4.保持卡面清洁,不要折叠,不要弄破、弄皱,不准使用涂改液、修正带、刮纸刀。

一、选择题(共10小题,每小题3分,共30分)1.已知m =12+,n =12-,则代数式223m n mn +-的值为 ( )A .±3B .3C .5D .92.如图是由若干个大小相同的小正方体堆砌而成的几何体,那么其三种视图中面积最小的是()A .主视图B .俯视图C .左视图D .一样大3.函数y =4x -中自变量x 的取值范围是A .x ≥0B .x ≥4C .x ≤4D .x >44.对于一组统计数据:1,6,2,3,3,下列说法错误的是( )A .平均数是3B .中位数是3C .众数是3D .方差是2.55.下列图形中,既是中心对称图形又是轴对称图形的是 ( )A .B .C .D .6.在平面直角坐标系中,将点P (4,﹣3)绕原点旋转90°得到P 1,则P 1的坐标为( )A .(﹣3,﹣4)或(3,4)B .(﹣4,﹣3)C .(﹣4,﹣3)或(4,3)D .(﹣3,﹣4)7.计算3–(–9)的结果是( )A .12B .–12C .6D .–68.如图所示:有理数,a b 在数轴上的对应点,则下列式子中错误..的是( )A .0ab >B .0a b +<C .1a b <D .0a b -<9.在快速计算法中,法国的“小九九”从“一一得一”到“五五二十五”和我国的“小九九”算法是完全一样的,而后面“六到九”的运算就改用手势了.如计算8×9时,左手伸出3根手指,右手伸出4根手指,两只手伸出手指数的和为7,未伸出手指数的积为2,则8×9=10×7+2=1.那么在计算6×7时,左、右手伸出的手指数应该分别为( ) A .1,2B .1,3C .4,2D .4,310.方程x 2﹣4x +5=0根的情况是( )A .有两个不相等的实数根B .有两个相等的实数根C .有一个实数根D .没有实数根 二、填空题(本大题共6个小题,每小题3分,共18分)11.225ab π-的系数是_____,次数是_____. 12.一个凸边形的内角和为720°,则这个多边形的边数是__________________13.20-114+-3-2014-4+6⨯()()=________14.如图,四边形ABCD 内接于⊙O ,BD 是⊙O 的直径,AC 与BD 相交于点E ,AC=BC ,DE=3,AD=5,则⊙O 的半径为___________.15.如图,△ABC 中,∠A=80°,∠B=40°,BC 的垂直平分线交AB 于点D ,联结DC .如果AD=2,BD=6,那么△ADC的周长为 .16.在一个不透明的布袋中,红色、黑色的玻璃球共有20个,这些球除颜色外其它完全相同.将袋中的球搅匀,从中随机摸出一个球,记下颜色后再放回袋中,不断地重复这个过程,摸了200次后,发现有60次摸到黑球,请你估计这个袋中红球约有_____个.三、解答题(共8题,共72分)17.(8分)抚顺某中学为了解八年级学生的体能状况,从八年级学生中随机抽取部分学生进行体能测试,测试结果分为A ,B ,C ,D 四个等级.请根据两幅统计图中的信息回答下列问题:本次抽样调查共抽取了多少名学生?求测试结果为C 等级的学生数,并补全条形图;若该中学八年级共有700名学生,请你估计该中学八年级学生中体能测试结果为D 等级的学生有多少名?若从体能为A 等级的2名男生2名女生中随机的抽取2名学生,做为该校培养运动员的重点对象,请用列表法或画树状图的方法求所抽取的两人恰好都是男生的概率.18.(8分)在数学上,我们把符合一定条件的动点所形成的图形叫做满足该条件的点的轨迹.例如:动点P 的坐标满足(m ,m ﹣1),所有符合该条件的点组成的图象在平面直角坐标系xOy 中就是一次函数y=x ﹣1的图象.即点P 的轨迹就是直线y=x ﹣1.(1)若m 、n 满足等式mn ﹣m=6,则(m ,n ﹣1)在平面直角坐标系xOy 中的轨迹是 ;(2)若点P (x ,y )到点A (0,1)的距离与到直线y=﹣1的距离相等,求点P 的轨迹;(3)若抛物线y=214x 上有两动点M 、N 满足MN=a (a 为常数,且a≥4),设线段MN 的中点为Q ,求点Q 到x 轴的最短距离.19.(8分)先化简,再求值:2121111a a a a -⎛⎫-÷ ⎪+-+⎝⎭,其中31a =+ 20.(8分)如图①,一次函数y=12x ﹣2的图象交x 轴于点A ,交y 轴于点B ,二次函数y=12-x 2+bx+c 的图象经过A 、B 两点,与x 轴交于另一点C .(1)求二次函数的关系式及点C 的坐标;(2)如图②,若点P 是直线AB 上方的抛物线上一点,过点P 作PD ∥x 轴交AB 于点D ,PE ∥y 轴交AB 于点E ,求PD+PE 的最大值;(3)如图③,若点M 在抛物线的对称轴上,且∠AMB=∠ACB ,求出所有满足条件的点M 的坐标.21.(8分)某校检测学生跳绳水平,抽样调查了部分学生的“1分钟跳绳”成绩,并制成了下面的频数分布直方图(每小组含最小值,不含最大值)和扇形图(1)D组的人数是人,补全频数分布直方图,扇形图中m=;(2)本次调查数据中的中位数落在组;(3)如果“1分钟跳绳”成绩大于或等于120次为优秀,那么该校4500名学生中“1分钟跳绳”成绩为优秀的大约有多少人?22.(10分)中央电视台的“朗读者”节目激发了同学们的读书热情,为了引导学生“多读书,读好书”,某校对八年级部分学生的课外阅读量进行了随机调查,整理调查结果发现,学生课外阅读的本书最少的有5本,最多的有8本,并根据调查结果绘制了不完整的图表,如图所示:本数(本) 频数(人数) 频率5 a0.26 18 0.367 14 b8 8 0.16合计c 1(1)统计表中的a=________,b=________,c=________;请将频数分布表直方图补充完整;求所有被调查学生课外阅读的平均本数;若该校八年级共有1200名学生,请你分析该校八年级学生课外阅读7本及以上的人数.23.(12分)某商店销售A型和B型两种电脑,其中A型电脑每台的利润为400元,B型电脑每台的利润为500元.该商店计划再一次性购进两种型号的电脑共100台,其中B 型电脑的进货量不超过A 型电脑的2倍,设购进A 型电脑x 台,这100台电脑的销售总利润为y 元.求y 关于x 的函数关系式;该商店购进A 型、B 型电脑各多少台,才能使销售总利润最大,最大利润是多少?实际进货时,厂家对A 型电脑出厂价下调a (0<a <200)元,且限定商店最多购进A 型电脑60台,若商店保持同种电脑的售价不变,请你根据以上信息,设计出使这100台电脑销售总利润最大的进货方案.24.如图在由边长为1个单位长度的小正方形组成的12×12网格中,已知点A ,B ,C ,D 均为网格线的交点在网格中将△ABC 绕点D 顺时针旋转90°画出旋转后的图形△A 1B 1C 1;在网格中将△ABC 放大2倍得到△DEF ,使A 与D 为对应点.参考答案一、选择题(共10小题,每小题3分,共30分)1、B【解题分析】 由已知可得:2,(12)(12)1m n mn +==+-=-223m n mn +-2()5m n mn +-【题目详解】 由已知可得:2,(12)(12)1m n mn +==+-=-,原式22()525(1)93m n mn +-=-⨯-==故选:B【题目点拨】考核知识点:二次根式运算.配方是关键.2、C【解题分析】如图,该几何体主视图是由5个小正方形组成,左视图是由3个小正方形组成,俯视图是由5个小正方形组成,故三种视图面积最小的是左视图,故选C.3、B【解题分析】根据二次根式的性质,被开方数大于等于0,列不等式求解.【题目详解】根据题意得:x﹣1≥0,解得x≥1,则自变量x的取值范围是x≥1.故选B.【题目点拨】本题主要考查函数自变量的取值范围的知识点,注意:二次根式的被开方数是非负数.4、D【解题分析】根据平均数、中位数、众数和方差的定义逐一求解可得.【题目详解】解:A、平均数为=3,正确;B、重新排列为1、2、3、3、6,则中位数为3,正确;C、众数为3,正确;D、方差为×[(1-3)2+(6-3)2+(2-3)2+(3-3)2+(3-3)2]=2.8,错误;故选:D.【题目点拨】本题考查了众数、平均数、中位数、方差.平均数平均数表示一组数据的平均程度.中位数是将一组数据从小到大(或从大到小)重新排列后,最中间的那个数(或最中间两个数的平均数);方差是用来衡量一组数据波动大小的量.5、C【解题分析】试题解析:A. 是轴对称图形,不是中心对称图形,故本选项错误;B. 是轴对称图形,不是中心对称图形,故本选项错误;C. 既是中心对称图又是轴对称图形,故本选项正确;D. 是轴对称图形,不是中心对称图形,故本选项错误.故选C.6、A【解题分析】分顺时针旋转,逆时针旋转两种情形求解即可.【题目详解】解:如图,分两种情形旋转可得P′(3,4),P″(−3,−4),故选A.【题目点拨】本题考查坐标与图形变换——旋转,解题的关键是利用空间想象能力.7、A【解题分析】根据有理数的减法,即可解答.【题目详解】()393912,--=+=故选A.【题目点拨】本题考查了有理数的减法,解决本题的关键是熟记减去一个数等于加上这个数的相反数.8、C【解题分析】从数轴上可以看出a 、b 都是负数,且a <b ,由此逐项分析得出结论即可.【题目详解】由数轴可知:a<b<0,A 、两数相乘,同号得正,ab >0是正确的;B 、同号相加,取相同的符号,a+b <0是正确的;C 、a <b <0,1a b >,故选项是错误的; D 、a-b=a+(-b )取a 的符号,a-b <0是正确的.故选:C .【题目点拨】此题考查有理数的混合运算,数轴,解题关键在于结合数轴进行解答.9、A【解题分析】试题分析:通过猜想得出数据,再代入看看是否符合即可.解:一只手伸出1,未伸出4,另一只手伸出2,未伸出3,伸出的和为3×10=30, 30+4×3=42,故选A .点评:此题是定义新运算题型.通过阅读规则,得出一般结论.解题关键是对号入座不要找错对应关系.10、D【解题分析】解: ∵a=1,b=﹣4,c=5,∴△=b 2﹣4ac=(﹣4)2﹣4×1×5=﹣4<0,所以原方程没有实数根.二、填空题(本大题共6个小题,每小题3分,共18分)11、25π- 1 【解题分析】根据单项式系数及次数的定义进行解答即可.【题目详解】 根据单项式系数和次数的定义可知,﹣225ab π的系数是25π-,次数是1. 【题目点拨】本题考查了单项式,熟知单项式中的数字因数叫做单项式的系数,一个单项式中所有字母的指数的和叫做单项式的次数是解题的关键.12、1【解题分析】设这个多边形的边数是n ,根据多边形的内角和公式:()n 2180-⨯,列方程计算即可.【题目详解】解:设这个多边形的边数是n根据多边形内角和公式可得()n 2180720,-⨯= 解得n 6=.故答案为:1.【题目点拨】此题考查的是根据多边形的内角和,求边数,掌握多边形内角和公式是解决此题的关键.13、13【解题分析】20-114+-3-2014-4+6⨯()() =2+9-4+6=13.故答案是:13.14、152【解题分析】如图,作辅助线CF ;证明CF ⊥AB (垂径定理的推论);证明AD ⊥AB ,得到AD ∥OC ,△ADE ∽△COE ;得到AD :CO=DE :OE ,求出CO 的长,即可解决问题.【题目详解】如图,连接CO 并延长,交AB 于点F ;∵AC=BC ,∴CF⊥AB(垂径定理的推论);∵BD是⊙O的直径,∴AD⊥AB;设⊙O的半径为r;∴AD∥OC,△ADE∽△COE,∴AD:CO=DE:OE,而DE=3,AD=5,OE=r-3,CO=r,∴5:r=3:(r-3),解得:r=152,故答案为152.【题目点拨】该题主要考查了相似三角形的判定及其性质、垂径定理的推论等几何知识点的应用问题;解题的关键是作辅助线,构造相似三角形,灵活运用有关定来分析、判断.15、1.【解题分析】试题分析:由BC的垂直平分线交AB于点D,可得CD=BD=6,又由等边对等角,可求得∠BCD的度数,继而求得∠ADC的度数,则可判定△ACD是等腰三角形,继而求得答案.试题解析:∵BC的垂直平分线交AB于点D,∴CD=BD=6,∴∠DCB=∠B=40°,∴∠ADC=∠B+∠BCD=80°,∴∠ADC=∠A=80°,∴AC=CD=6,∴△ADC的周长为:AD+DC+AC=2+6+6=1.考点:1.线段垂直平分线的性质;2.等腰三角形的判定与性质.16、1【解题分析】估计利用频率估计概率可估计摸到黑球的概率为0.3,然后根据概率公式计算这个口袋中黑球的数量,继而得出答案.【题目详解】因为共摸了200次球,发现有60次摸到黑球,所以估计摸到黑球的概率为0.3,所以估计这个口袋中黑球的数量为20×0.3=6(个),则红球大约有20-6=1个,故答案为:1.【题目点拨】本题考查了利用频率估计概率:大量重复实验时,事件发生的频率在某个固定位置左右摆动,并且摆动的幅度越来越小,根据这个频率稳定性定理,可以用频率的集中趋势来估计概率,这个固定的近似值就是这个事件的概率.用频率估计概率得到的是近似值,随实验次数的增多,值越来越精确.三、解答题(共8题,共72分)17、(1)50;(2)16;(3)56(4)见解析【解题分析】(1)用A等级的频数除以它所占的百分比即可得到样本容量;(2)用总人数分别减去A、B、D等级的人数得到C等级的人数,然后补全条形图;(3)用700乘以D等级的百分比可估计该中学八年级学生中体能测试结果为D等级的学生数;(4)画树状图展示12种等可能的结果数,再找出抽取的两人恰好都是男生的结果数,然后根据概率公式求解.【题目详解】(1)10÷20%=50(名)答:本次抽样调查共抽取了50名学生.(2)50-10-20-4=16(名)答:测试结果为C等级的学生有16名.图形统计图补充完整如下图所示:(3)700×450=56(名)答:估计该中学八年级学生中体能测试结果为D等级的学生有56名. (4)画树状图为:共有12种等可能的结果数,其中抽取的两人恰好都是男生的结果数为2,所以抽取的两人恰好都是男生的概率=21126=. 【题目点拨】本题考查了列表法与树状图法:利用列表法或树状图法展示所有等可能的结果n ,再从中选出符合事件A 或B 的结果数目m ,然后利用概率公式计算事件A 或事件B 的概率.也考查了统计图.18、(1)6y x =;(2)y=14x 2;(3)点Q 到x 轴的最短距离为1. 【解题分析】(1)先判断出m (n ﹣1)=6,进而得出结论;(2)先求出点P 到点A 的距离和点P 到直线y=﹣1的距离建立方程即可得出结论;(3)设出点M ,N 的坐标,进而得出点Q 的坐标,利用MN=a ,得出()()2216116k k b ++≥,即可得出结论.【题目详解】(1)设m=x ,n ﹣1=y ,∵mn ﹣m=6,∴m (n ﹣1)=6,∴xy=6,∴6y x=, ∴(m ,n ﹣1)在平面直角坐标系xOy 中的轨迹是6y x =, 故答案为:6y x=,; (2)∴点P (x ,y )到点A (0,1),∴点P (x ,y )到点A (0,1)的距离的平方为x 2+(y ﹣1)2,∵点P (x ,y )到直线y=﹣1的距离的平方为(y+1)2,∵点P (x ,y )到点A (0,1)的距离与到直线y=﹣1的距离相等,∴x 2+(y ﹣1)2=(y+1)2,∴214y x =; (3)设直线MN 的解析式为y=kx+b ,M (x 1,y 1),N (x 2,y 2), ∴线段MN 的中点为Q 的纵坐标为12.2y y +∴214x kx b =+, ∴x 2﹣4kx ﹣4b=0,∴x 1+x 2=4k ,x 1x 2=﹣4b , ∴()()21212121122.222y y kx b kx b k x x b k b +⎡⎤=+++=++=+⎣⎦ ∴()()()()()()2222222121212121211[4]MN x x y y k x x k x x x x =-+-=+-=++-, ()()2216116k k b =++≥ ∴2211k b k +≥+, 222212221111211211y y k k b k k k k +⎛⎫=++≥+=-+-≥-= ⎪++⎝⎭∴点Q 到x 轴的最短距离为1.【题目点拨】此题是二次函数综合题,主要考查了点的轨迹的定义,两点间的距离公式,中点坐标公式公式,根与系数的关系,确定出()()2216116k k b ++≥是解本题的关键.19、11a - ;3. 【解题分析】先对小括号部分通分,同时把除化为乘,再根据分式的基本性质约分,最后代入求值.【题目详解】解:原式=1(2)(1)(1)(1)a a a a a ---⨯++-=11a -把1a =代入得:原式=3 【题目点拨】本题考查分式的化简求值,计算题是中考必考题,一般难度不大,要特别慎重,尽量不在计算上失分.20、(1)二次函数的关系式为y =215222x x -+-;C (1,0);(2)当m =2时,PD +PE 有最大值3;(3)点M 的坐标为(52,12)或(52,). 【解题分析】(1)先求出A 、B 的坐标,然后把A 、B 的坐标分别代入二次函数的解析式,解方程组即可得到结论;(2)先证明△PDE ∽△OAB ,得到PD =2PE .设P (m ,215222m m -+-),则E (m ,122m -),PD +PE =3PE ,然后配方即可得到结论. (3)分两种情况讨论:①当点M 在在直线AB 上方时,则点M 在△ABC 的外接圆上,如图1.求出圆心O 1的坐标和半径,利用MO 1=半径即可得到结论.②当点M 在在直线AB 下方时,作O 1关于AB 的对称点O 2,如图2.求出点O 2的坐标,算出DM 的长,即可得到结论.【题目详解】解:(1)令y =122x -=0,得:x =4,∴A (4,0). 令x =0,得:y =-2,∴B (0,-2).∵二次函数y =212x bx c -++的图像经过A 、B 两点, ∴8402b c c -++⎧⎨-⎩==,解得:522b c ⎧⎪⎨⎪-⎩==, ∴二次函数的关系式为y =215222x x -+-. 令y =215222x x -+-=0,解得:x =1或x =4,∴C (1,0). (2)∵PD ∥x 轴,PE ∥y 轴,∴∠PDE =∠OAB ,∠PED =∠OBA ,∴△PDE ∽△OAB .∴PD PE =OA OB =42=2, ∴PD =2PE .设P (m ,215222m m -+-), 则E (m ,122m -). ∴PD +PE =3PE =3×[(215222m m -+-)-(122m -)]=2362m m -+=()23262m --+. ∵0<m <4,∴当m =2时,PD +PE 有最大值3.(3)①当点M 在在直线AB 上方时,则点M 在△ABC 的外接圆上,如图1.∵△ABC 的外接圆O 1的圆心在对称轴上,设圆心O 1的坐标为(52,-t ). ∴()22522t ⎛⎫+- ⎪⎝⎭=22512t ⎛⎫-+ ⎪⎝⎭,解得:t =2,∴圆心O 1的坐标为(52,-2),∴半径为52. 设M (52,y ).∵MO 1=52,∴522y +=, 解得:y =12,∴点M 的坐标为(5122,). ②当点M 在在直线AB 下方时,作O 1关于AB 的对称点O 2,如图2.∵AO 1=O 1B =52,∴∠O 1AB =∠O 1BA .∵O 1B ∥x 轴,∴∠O 1BA =∠OAB , ∴∠O 1AB =∠OAB ,O 2在x 轴上,∴点O 2的坐标为 (32,0),∴O 2D =1, ∴DM =225()12-=212,∴点M 的坐标为(52,212-). 综上所述:点M 的坐标为(52,12)或(52,212-).点睛:本题是二次函数的综合题.考查了求二次函数的解析式,求二次函数的最值,圆的有关性质.难度比较大,解答第(3)问的关键是求出△ABC 外接圆的圆心坐标.21、(1)16、84°;(2)C ;(3)该校4500名学生中“1分钟跳绳”成绩为优秀的大约有3000(人)【解题分析】(1)根据百分比=所长人数÷总人数,圆心角=360︒⨯百分比,计算即可;(2)根据中位数的定义计算即可;(3)用一半估计总体的思考问题即可;【题目详解】(1)由题意总人数610%60÷==人,D 组人数6061419516----==人;B 组的圆心角为143608460︒⨯=︒; (2)根据A 组6人,B 组14人,C 组19人,D 组16人,E 组5人可知本次调查数据中的中位数落在C 组; (3)该校4500名学生中“1分钟跳绳”成绩为优秀的大约有404500300060⨯=人. 【题目点拨】本题主要考查了数据的统计,熟练掌握扇形图圆心角度数求解方法,总体求解方法等相关内容是解决本题的关键.22、(1)10,0.28,50(2)图形见解析(3)6.4(4)528【解题分析】分析:(1)首先求出总人数,再根据频率,总数,频数的关系即可解决问题;(2)根据a 的值画出条形图即可;(3)根据平均数的定义计算即可;(4)用样本估计总体的思想解决问题即可;详解:(1)由题意c=180.36=50, a=50×0.2=10,b=1450=0.28,c=50; 故答案为10,0.28,50;(2)将频数分布表直方图补充完整,如图所示:(3)所有被调查学生课外阅读的平均本数为:(5×10+6×18+7×14+8×8)÷50=320÷50=6.4(本).(4)该校七年级学生课外阅读7本及以上的人数为:(0.28+0.16)×1200=528(人).点睛:本题考查频数分布直方图、扇形统计图、样本估计总体等知识,解题的关键是熟练掌握基本概念,灵活运用所学知识解决问题,属于中考常考题型.23、 (1) =﹣100x+50000;(2) 该商店购进A 型34台、B 型电脑66台,才能使销售总利润最大,最大利润是46600元;(3)见解析.【解题分析】【分析】(1)根据“总利润=A型电脑每台利润×A电脑数量+B型电脑每台利润×B电脑数量”可得函数解析式;(2)根据“B型电脑的进货量不超过A型电脑的2倍且电脑数量为整数”求得x的范围,再结合(1)所求函数解析式及一次函数的性质求解可得;(3)据题意得y=(400+a)x+500(100﹣x),即y=(a﹣100)x+50000,分三种情况讨论,①当0<a<100时,y随x的增大而减小,②a=100时,y=50000,③当100<m<200时,a﹣100>0,y随x的增大而增大,分别进行求解.【题目详解】(1)根据题意,y=400x+500(100﹣x)=﹣100x+50000;(2)∵100﹣x≤2x,∴x≥1003,∵y=﹣100x+50000中k=﹣100<0,∴y随x的增大而减小,∵x为正数,∴x=34时,y取得最大值,最大值为46600,答:该商店购进A型34台、B型电脑66台,才能使销售总利润最大,最大利润是46600元;(3)据题意得,y=(400+a)x+500(100﹣x),即y=(a﹣100)x+50000,3313≤x≤60,①当0<a<100时,y随x的增大而减小,∴当x=34时,y取最大值,即商店购进34台A型电脑和66台B型电脑的销售利润最大.②a=100时,a﹣100=0,y=50000,即商店购进A型电脑数量满足3313≤x≤60的整数时,均获得最大利润;③当100<a<200时,a﹣100>0,y随x的增大而增大,∴当x=60时,y取得最大值.即商店购进60台A型电脑和40台B型电脑的销售利润最大.【题目点拨】本题考查了一次函数的应用及一元一次不等式的应用,弄清题意,找出题中的数量关系列出函数关系式、找出不等关系列出不等式是解题的关键.24、(1)见解析(2)见解析【解题分析】(1)根据旋转变换的定义和性质求解可得;(2)根据位似变换的定义和性质求解可得.【题目详解】解:(1)如图所示,△A1B1C1即为所求;(2)如图所示,△DEF即为所求.【题目点拨】本题主要考查作图﹣位似变换与旋转变换,解题的关键是掌握位似变换与旋转变换的定义与性质.。

广东省百合外国语学校初中英语七年级下册Unit 12测试题(答案解析)

广东省百合外国语学校初中英语七年级下册Unit 12测试题(答案解析)

一、选择题1.--- What would you like to drink?--- I’m very thirsty. you can get. Just get it now.A.Anything B.Something C.Nothing D.Everything 2.—Please _____ go out on school nights!— Yes, Miss Wang.A.not B.not to C.don’t D.didn’t3.— I have to go to the_____ palace to learn the piano.— I do_____.A.child’s...to B.children...alsoC.children’s...either D.children’s...too4.—Do I have to clean the classroom?—_____.A.Yes, I do. B.No, I don’t.C.Yes, you do. D.No, you can’t.5.—_____ should I do if it’s_____?— You should go out and practice your guitar.A.What...sunny B.What...rainsC.Where...raining D.How...rain6.Are there ________ in today's newspaper?A.something of interesting B.interesting somethingC.anything interesting D.interesting anything7.—Hi,Carol.How was your trip to Disney World?—Hi,Alice.Oh,we ________a good time there.A.are having B.to have C.have D.had 8.—What did you do last Saturday?—I ________kites with my friends.A.fly B.flew C.is flying D.flies9.My mother started _______ the kitchen at 3:00 p.m.A.to cleaning B.to clean C.clean D.cleaned 10.—We are planning a Yangtze River Protection Day this weekend. Do you have any advice?—You’d better signs around the school to tell all the students about that.A.make up B.put up C.set up D.show up11.When we ________ the snake, we all felt ________.A.see; scary B.saw; scared C.saw; scary D.see; scared 12.—Your brother is an excellent basketball player.—So he is.He________ to play basketball three years ago.A.starts B.is startingC.started D.is started13.What she said made me very ________.A.happily B.wellC.happy D.sadly14.—Sam didn’t go to school yesterday, did he?—_______. He was ill yesterday.A.Yes, he did. B.No, he did. C.No, he didn’t D.Yes, he didn’t 15.The little girl shouted ________ the people on the beach for help.A.at B.for C.to D.out16.A family of ________ in the kitchen last night.A.mouse was B.mouses were C.mice were D.mice was 17.There is ______ mutton on the plate.A.many B.few C.a few D.a little 18.Please remember to at five o’clock tomorrow morning.A.wake up her B.wake her up C.woke her up D.woke up her 19.There ________ a lot of rain here in August last year.A.is B.was C.had D.were20.—________ did you play with? —I played with my friend.A.When B.Where C.Who D.What【参考答案】***试卷处理标记,请不要删除一、选择题1.A解析:A【解析】【详解】句意:-你想要喝什么?-我很渴,任何喝的都行。

广东省百合外国语学校英语任务型阅读专项练习试卷

广东省百合外国语学校英语任务型阅读专项练习试卷

广东省百合外国语学校英语任务型阅读专项练习试卷一、英语任务型阅读1.阅读下面短文,并用英语回答问题(请注意每小题后面的词数要求)What can you do when someone hurts you? Most people may be angry or even fight with the one who hurts him or her. But it's not a good idea. The best way is to forgive him or her. Although it is not easy for us to forgive people who hurt us, it is possible. "Forgiveness makes people hopeful. And it is good for our health," says Fredric, Ph. D. the writer of the book called Forgive for God.But how can we forgive others?First, think of something beautiful and try to get yourself happy.Second, don't wait for others to say sorry to you. If some people hurt you, they won't say sorry to you. They may just want to hurt you or they just don't see things the same way.Third, try to see things in others' shoes. You can write a letter to yourself from the offender's (冒犯者)point. That can make you understand others better and make yourself happier.At last, don't forget to forgive yourself. For some people, forgiving themselves is the biggest challenge(挑战). And it also makes you more confident.(1)When someone hurts you, what should you do?(不超过5个词)(2)What makes people hopeful? (不超过5个词)(3)How many ways does the writer offer us? (不超过5个词)2.阅读短文,并按要求完成问题。

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深圳外国语学校分校2012年初中招生考试英语试卷I. Multiple choices.单项选择(15分)1. –Whose jacket is that?–It‘s ________.A. MandyB. herC. themD. Andy‘s2. Can you come over and celebrate my ________ birthday with me?A. TwelveB. twelfthC. the twelfthD. twelveth3. Tommy _________ to the movies once a month.A. goB. wentC. goingD. goes4. –Should I return the book before Saturday?–No, you ________.A. can‘tB. shouldn‘tC. needn‘tD. couldn‘t5. The famous singer _________ a concert in our city next week.A. Is going to haveB. going to haveC. hasD. will has6. Cooking meat on a fire made it ________, so people became stronger.A. tastier, healthier, and saferB. taster, healthier, and strongerC. tastiest, healthiest, and safestD. tasty, healthy, and safe7. It‘s good for your health _________ 8 glasses of water every day.A. drinkB. to drinkC. drinkingD. drank8. The mini-car looks ________ but it can‘t run ________.A. beautifully, quicklyB. beautifully, quickC. beautiful, quicklyD. beautiful, quick9. –What were you doing at 10 a.m. yesterday, Jack?–I _______ with my dad.A. skiedB. was skingC. was skiingD. ski10. _______rather be a musician than a doctor.A. I‘llB. I‘dC. I‘mD. I‘ve11. Look! The old woman ________ a flower with paper!A. is makingB. makingC. makesD. made12. My parents bought me a Teddy bear as a gift for Children‘s Day. What ________!A. surpriseB. surprisingC. surprisedD. a surprise13. –Can I fish here? –Sorry, the sign says ―________‖?A. No fishing!B. Not fishing!C. No fish!D. Don‘t fishing!14. There ________ an i-pad and some books in my backpack now.A. areB. wasC. isD. were15. I was shopping with my mom when I _______ a loud fire alarm last night. Then we ________the building quickly in order.A. hear, leaveB. heared, leftC. heard, leaveD. heard, leftII. Cloze. 完形填空(10分)There was once a bad king. All the people ___16___ him. One day in a summer he was swimming by himself in a river. The king was a good swimmer, but while he was in the middle of the river, he ___17___ fell ill. He cried out ―Help! Help!‖ At that time two farmers were working ___18___. They ran over, jumped into the water and saved him. They didn‘t know that he was the king until they ____19____ him out of the water. The king was happy, so he said to the farmers, ―You‘ve saved my life. Now you may ask for anything, and I‘ll give them to you.‖ One of the famers said, ―My son broke his leg last week, and he still can‘t walk well, please___20____ him to a good doctor.‖ The king ___21___to do so. Then he spoke to ___22___ farmer, who was old and wise, ―And what can I do for you, old man?The old man___23___ for some minutes and then he answered, ―You can do a very important thing for me.‖―What is that?‖ asked the king. He thought that the old man would ask for some money, ___24___ a good job for his son. ―Don‘t tell ___25___ that we have saved you,‖ the old famer answered.16. A. loved B. liked C. hated D. needed17. A. quietly B. quickly C. slowly D. suddenly18. A. nearby B. near C. away D. far19. A. pushed B. caught C. took D. pulled20. A. ask B. bring C. drive D. send21. A. answered B. promised C. told D. spoke22. A. other B. another C. the other D. the others23. A. thought B. listened C. talked D. looked24. A. and B. but C. or D. then25. A. somebody B. nobody C. anybody D. everybodyIII. Reading 阅读理解(25分)A( ) 26. If you want to eat Chinese food, which restaurant should you go to?A. Fairview HotelB. Langham HotelC. Orchard HotelD. Osaka Hotel( ) 27. The lowest price for a single bed is _______ in ________.A. $12, Langham HotelB. $15, Osaka HotelC. $12, Fairview HotelD. $25, Orchard Hotel( ) 28. Which hotel faces the Orchard Hotel?A. Fairview HotelB. Langham HotelC. Osaka HotelD. None( ) 29. The following hotels have a swimming pool EXCEPT ________.A. Langham HotelB. Orchard HotelC. Osaka HotelD. Fairview Hotel( ) 30. What‘s the form mainly about?A. Guide to the best hotelsB. The reason people book hotelsC. Making a hotel reservationD. The best and worst hotelsBIn Xinjiang, China, most people knew the stories of Avantis. Avantis was a very clever man. People liked him because he not only spoke for the poor but also was always ready to help them. One day, Avantis on the street and saw two men arguing with each other. A lot of people stood around them. One of the two men was the owner of the eating house in the town and the other was a young man. The young man just passed by the eating house. The owner of the eating house told the young man to pay him money. The young man explained that he hadn‘t taken anything from the eating house. But the owner said that the young man had taken the smell of the nice food from the eating house, and he must pay for it. So Avantis went up to the owner and said, ―I‘ll pay you the money.‖ Avantis took out some coins from his pocket and put them into his bag. He shook his bag, the people heard the sound of the coins. Then Avantis said t o the owner, ―Take away the sound of the coins. That‘s what I pay for the smell of your food.‖31. Who didn‘t appear in the story?A. the owner of the eating houseB. a young manC. AvantisD. a poor woman32. What does the underlined word ―arguing‖ mean in the article?A. speaking happilyB. speaking angrilyC. speaking loudlyD. speaking quietly33. Why did the owner ask the young man to pay him money?A. Because the young man stole bread from his house.B. Because the young man broke the window of his house.C. Because the young man had a big meal in his house.D. Because the young man took the smell of his nice food.34. What did Avantis pay the owner at last?A. A bagB. Some coinsC. The smell of the nice foodD. The sound of the coins35. The words below can be used to describe Avantis Except _______.A. smartB. kindC. meanD. warm-heartedCThe Hall of Mirrors is one of the most famous buildings in the world. In the hall, seventeen mirror along the wall are opposite to seventeen large windows. Each mirror is made up of 483 pieces of glass. The French started to build the Hall of Mirrors in 1678. At that time, only the rich could have a good mirror, so the French King Louis XIV(路易十四) wanted a room full of mirrors to show off. In 1686, the Hall of Mirrors was finished. When you are in it, you cannot see where it ends. All around you are the large mirrors and windows. Seventeen windows overlook the beautiful scenery of the garden, and at the same time, the beautiful scenery can be seen from the opposite seventeen mirrors. Today, everyone can visit Versailles (凡尔赛宫) and enjoy themselves in the Hall of Mirrors. When you are enjoying yourself there, you will feel like a king or queen yourself.36. The seventeen mirrors are made of ________ pieces of glass.A. 17B. 483C. 483×17D. 17×1737. The Hall of Mirrors was built by _________.A. ChineseB. the BritishC. JapaneseD. the French38. What‘s the meaning of ―show off‖?A. 展览B. 炫耀C. 收藏D. 装饰39. From the underlined sentence, we can know _________.A. the Hall of Mirrors is beautifulB. the Hall of Mirrors is very largeC. the mirrors and windows are very largeD. the garden is very large40. Which of the following is Not true?A. The Hall of Mirrors is very famous.B. In 1678, not everyone in France could have a good mirror.C. The Hall of Mirrors wasn‘t finished until 1686.D. Visitors can‘t see the garden from the mirrors in the hall.DShadow play(皮影戏) is one of Chinese historic folk arts. It‘s a form of storytelling. People made puppets with hard paper. During the shadow play, three or five people hide themselves behind a white screen and perform them. They move sticks on the puppets, and they also tell the story through the folk song. Usually they perform withfolk music. Chinese shadow play came into being during the Han Dynasty (206 BC-220AD) in northwest China‘s Shanxi province. It spread to South Asia, Central Asia, West Asia and North Africa and North Africa in the 13th century. The ancient Chineseart spread to Europe in the 17th century, Chinese shadow play has been staged in Europe and the United States in recent years. For the development of TV and movie, there are fewer and fewer people watching this old folk art. Like some other folk arts, it gradually became the one that we can only see on TV. But the government still try their best to protect and develop this old art.41. Shadow play is one of the _______ in China.A. old filmsB. new filmsC. ancient artD. new arts42. Puppets are made of _______.A. paperB. clothC. woodD. leaves43. When we watch the shadow play, we can NOT see ________.A. the white screenB. the lightC. shadowsD. the performers44. Now shadow play has spread _________.A. in ChinaB. in some foreign countriesC. all over the worldD. in Asia45. Which of the following statements is NOT true?A. Fewer and fewer people like to watch shadow play.B. Shadow play is performed with music.C. Government has just begun to protect shadow playD. Shadow play appeared in China in Han Dynasty.EAll through the day the swallow(燕子)flies, and at night he arrives in the bigcity. .Where can I stay here? Where can I find a bed to sleep in?‘ he thinks, and then he sees the statue(雕像)of the Happy Prince on its tall column. .I can stay here,‘ he says, .From here, I can look down at the town and up at the open sky, too.‘ So he sits between the feet of the Happy Prince, and he looks about him. .Tonight I have a beautiful gold room to stay in,‘ he says quietly, and then he begins to go to sleep. Suddenly a big drop of water falls on him. Soon after that, a second drop hits him on the head, too. .That‘s strange. It‘s raining! Reeds like the rain but not swallows.‘ he says. .I must find a better bed to sleep in. This statue isn‘t any good inthe rain. But, wait a minute. The sky‘s clear. I can‘t understand it.‘ Just then, when the swallow is opening his wings to fly away, a third drop of water falls on him. The little bird quickly looks up. And what does he see? He sees the sad eyes of the HappyPrince. Tears are running down the statue‘s gold face, and falling down on the swallow at his feet. The Happy Prince is crying! His face looks very sad and beautiful, and the little bird feels very sorry for him.Who are you?‘ asks the swallow. I‘m the Happy Prince, the statue answers. .Then why are you crying on me?‘ asks thebird. .My name comes from happier times,‘ says the statue, and he tells the swallow all about those past days in the Palace of Sans-Sou ci, .But I‘m dead, and I‘m standing up here. I have only a lead heart now. But I must cry because—from here—I can see all the poor people and all the ugly things in my city.‘ .So the statue isn‘t all gold,‘ thinks the swallow, but he‘s a bird from a good f amily, and so he says nothing to the prince about it. Then the statue says quietly. .Far away there‘s a poor housein a little street. Near the open window sits a tired woman at a table. She‘s working, and her hands don‘t stop moving. She‘s making an eveni ng dress for one of the young ladies at the palace. It has beautiful red flowers on it. In a little bed across the room from her, her son, lies ill with a fever. He asks for something nice and cold to drink, but his mother can give him only river water and so he does not get well. Swallow, Swallow, please pull the ruby from my sword(剑), and take it to her. My feet can never leave this column, so I cannot move from here.‘.But my friends the other swallows are waiting for me. At this time of the year they fly up and down the Nile from Cairo and talk to the Egyptian water-flowers here. I must fly away to be with them,‘ says the little swallow. .Swallow, little Swallow, please stay with me for only one night,‘ says the statue. .You can help me. That poor boy is very thirsty and his mother is very sad..I don‘t like boys very much,‘ says the swallow. .They like hitting little birds with stones. I remember last summer, two bad boys down at the river…‘ The Happy Prince looks sadly at the swallow. The little bird fee ls sorry for him. He doesn‘t like saying .no‘ to people. .…But I can fly fast, after all. It‘s very cold here now, but-yes-I can stay with you for one night and help.‘ .Thank you, little swallow,‘ says the prince. So the swallow takes the ruby from the prince‘s sword.46. Which book is the episode from?A. Snow WhiteB. The Little PrinceC. The Frog PrinceD. The Happy Prince47. What hits the swallow on the head?A. WaterB. RainC. StonesD. Tears48. What does the statue of the Happy Prince have in it?A. SwordB. A lead heartC. ColumnD. Gold49. Why does the Happy Prince cry?A. The swallow will fly away to Egypt.B. The swallow doesn‘t want to help him.C. People don‘t love him any moreD. He sees a lot of poor people in need.50. What does the Happy Prince want to give to the woman?A. Some cool drinksB. A beautiful dressC. A swordD. A rubyIV. Complete the sentences with the correct form of the words given.用所给词的适当形式填空。

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