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  • ID:4-5952955 [精]新目标2018-2019学年八年级下学期期末考试英语试卷(二)(含听力音频+答案解析)

    初中英语/期末专区/八年级下册

    一、单项选择(每小题1分,共20分)
    ( )21.You look really tired, ______? I didn’t sleep well last night. I had a headache.
    A.What should I do B.What’s wrong
    C.How’s it going D.Could you stop
    ( )22.He is an experienced driver and is used to _____ in all kinds of weather.
    A.drive B.drove C.driving D.will drive
    ( )23.- I’m very worried about the coming exam.I am afraid I can't pass this time.
    - ! I'm sure you' ll make it.
    A.No problem B.That's right C.Cheer up D.Don't mention it
    ( )24.We will some money for the poor children. Would you like to come?
    A.spend B.raise C.watch D.imagine
    ( )25.I don’ t know if Jack . If he , call me, please.
    A.comes; come B.will come; will come
    C.will come; comes D.comes; will come
    ( )26.The government provided the homeless people food and clothes.
    A.in B.with C.onto D.to
    ( )27.The pool is to swim in.
    A.deep enough B.enough deep C.enough deeply D.deeply enough
    ( )28.You play music so loud at night.
    A.should B.shouldn’t C.could D.couldn’t
    ( )29.What you when she came in?
    A.did; do B.are; doing C.do; do D.were; doing
    ( )30.All the houses ______ in the rainstorm.
    A.were taken off B.were taken away C.were taken out D.were taken down

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  • ID:3-5945718 [精]人教版2018-2019学年度下学期期末考试八年级数学试卷(二)(含解析)

    初中数学/期末专区/八年级下册


    2018——2019学年度第二学期期末考试
    八年级数学试卷
    (总分:120分 测试时间:90分钟)

    一、选择题(每小题3分,共30分)
    1.计算:=(  )
    A. B.4 C.2 D.3
    2.计算:的结果是(  )
    A.1 B.﹣1 C. +2 D.-2
    3.若一组数据x1+1,x2+1,x3+1…xn+1的平均数为18,方差为2,则数据x1+2,x2+2,x3+2……,xn+2的平均数和方差分别是(  )
    A.18,2 B.19,3 C.19,2 D.20,4
    4.某酒店打算在一段楼梯面上铺上宽为2米的地毯,台阶的侧面如图所示,如果这种地毯每平方米售价为80元,则购买这种地毯至少需要(  )
    A.2560元 B.2620元 C.2720元 D.2840元
    / / /
    第4题图 第5题图 第7题图
    5.如图,一艘轮船位于灯塔P的北偏东60°方向,与灯塔P的距离为30海里的A处,轮船沿正南方向航行一段时间后,到达位于灯塔P的南偏东30°方向上的B处,则此时轮船所在位置B与灯塔P之间的距离为(  )
    A.60海里 B.45海里 C.20
    3
    海里 D.30
    3
    海里
    6.已知直线不经过第一象限,则的取值范围是(  )
    A. B. C. D.
    7.自驾游是当今社会一种重要的旅游方式,五一放假期间小明一家人自驾去灵山游玩,下图描述了小明爸爸驾驶的汽车在一段时间内路程s(千米)与时间t(小时)的函数关系,下列说法中正确的是(  )
    A.汽车在0~1小时的速度是60千米/时 B.汽车在2~3小时的速度比0~0.5小时的速度快
    C.汽车从0.5小时到1.5小时的速度是80千米/时 D.汽车行驶的平均速度为60千米/时
    8.如图,直线??=???+??与??=??+3的交点的横坐标为-2,则关于??的不等式???+??>??+3>0的取值范围(  )
    A.x>-2 B.x<-2 C.-3/ //
    第8题图 第9题图 第10题图
    ================================================
    压缩包内容:
    人教版2018-2019学年度下学期期末考试八年级数学试卷(二)(含解析).docx

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  • ID:3-5942779 [精]人教版2018-2019学年度下学期期末考试八年级数学试卷(一)(含解析)

    初中数学/期末专区/八年级下册


    2018——2019学年度第二学期期末考试
    八年级数学试卷
    (总分:120分 测试时间:90分钟)

    一、选择题(每小题3分,共30分)
    1.下列计算正确的是( )
    A.2
    3
    ×3
    3
    =6
    3
    B.
    2

    3

    5

    C.5
    5
    -2
    2
    =3
    3
    D.3
    3

    3
    =2
    3
    2.若a,b,c表示△ABC的三边长,且满足
    ???5
    +|a-12|+(b-13)2=0,则△ABC是( )
    A.等腰三角形 B.直角三角形 C.等腰直角三角形 D.等边三角形
    3.一次函数y=3x﹣2的图象上有两点A(﹣1,y1),B(﹣2,y2),则y1与y2的大小关系为( )
    A.y1<y2 B.y1>y2 C.y1=y2 D.不能确定
    4.某中学田径队的18名队员的年龄情况如下表:
    年龄(单位:岁)
    14/
    15
    16
    17
    18
    
    人数
    3
    7
    3
    4
    1
    
    则这些队员年龄的众数和中位数分别是( )
    A.15,15 B.15,15.5 C.15,16 D.16,15
    5.如图,平行四边形 ABCD 的对角线 AC,BD 相交于点 O,点 E,F 分别是线段 AO,BO 的中点,若 AC+BD=24 厘米,△OAB 的周长是 18 厘米,则 EF 为( )
    /
    A.3cm B.4cm C.5cm D.6cm
    6.如图,小巷左右两侧是竖直的墙壁,一架梯子斜靠在左墙时,梯子底端到左墙角的距离为0.7米,顶端距离地面2.4米.若梯子底端位置保持不动,将梯子斜靠在右墙时,顶端距离地面1.5米,则小巷的宽度为( )
    /
    A.2.7米 B.2.5米 C.2米 D.1.8米
    7.已知一个矩形的两条对角线夹角为60°,一条对角线的长为10cm,则该矩形的周长为( )
    A.20cm B.cm C.20(1+)cm D.10(1+)cm
    8.在?ABCD中,对角线AC、BD交于点O,E为BD上一点,且BE=2DE.若△DEC的面积为2,则△AOB的面积为( )
    ================================================
    压缩包内容:
    人教版2018-2019学年度下学期期末考试八年级数学试卷(一)(含解析).docx

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  • ID:3-5938464 [精]第20章 数据的分析单元测试A卷(含解析)

    初中数学/人教版/八年级下册/第二十章 数据的分析/本章综合与测试


    【人教版八年级数学(下)单元测试AB卷】
    第20章 数据的分析 A卷
    班级:________ 姓名:________ 得分:________
    一、选择题(每小题3分,共30分)
    1.在我国某次抗震救灾自愿捐款活动中,调查到了某校30名同学的捐款情况如下表:(单位:元)
    /
    则这所学校的同学捐款的平均数为(  )元.
    A.10 B.11 C.15 D.20
    2.一组数据6、4、a、3、2的平均数是5,则a的值为( )
    A.10 B.5 C.8 D.12
    3.一组数据:1,2,4,2,2,5,这组数据的众数是(  )
    A.1 B.2 C.4 D.5
    4.在一次13人参加的歌咏比赛中,预赛成绩各不同,要取前7名参加决赛,小丽已经知道自己的成绩,她想知道自己是否能进入决赛,只需要再知道这13名同学成绩的( )
    A.平均数 B.众数 C.方差 D.中位数
    5.下面的统计图表示某体校射击队甲、乙两名队员射击比赛的成绩,根据统计图中的信息,下列结论正确的是(  )
    /
    A.甲队员成绩的平均数比乙队员的大 B.乙队员成绩的平均数比甲队员的大
    C.甲队员成绩的中位数比乙队员的大 D.甲队员成绩的方差比乙队员的大
    6.下列说法正确的是(  )
    A.了解某型导弹杀伤力的情况应使用全面调查
    B.一组数据3、6、6、7、9的众数是6
    C.从2000名学生中选200名学生进行抽样调查,样本容量为2000
    D.甲、乙两人在相同的条件下各射击10次,他们成绩的平均数相同,方差分别是S2甲=0.3,S2乙=0.4,则乙的成绩更稳定
    7.某班体育委员记录了第一小组七位同学定点投篮(每人投10个)的情况,投进篮框的个数分别为6 , 10 , 5 , 3 , 4 , 8 , 4 ,这组数据的中位数和极差分别是( )
    A.4, 7 B.5, 7 C.7, 5 D.3, 7
    8.已知一组数据
    ??
    1

    ??
    2

    ??
    3

    ??
    4

    ??
    5
    的平均数为5,则另一组数据
    ??
    1
    +5,
    ??
    2
    ?5,
    ??
    3
    +5,
    ================================================
    压缩包内容:
    第20章 数据的分析单元测试A卷(含解析).docx

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  • ID:3-5938462 [精]第20章 数据的分析单元测试B卷(含解析)

    初中数学/人教版/八年级下册/第二十章 数据的分析/本章综合与测试


    【人教版八年级数学(下)单元测试AB卷】
    第20章 数据的分析 B卷
    班级:________ 姓名:________ 得分:________
    一、选择题(每小题3分,共30分)
    1.一组数据:-3、-1、2、6、6、8、16、99,这组数据的中位数和众数分别是( )
    A.6和6 B.8和6 C.6和8 D.8和16
    2.一组数据:3,4,5,x,7的众数是4,则x的值是( )
    A.3 B.4 C.5 D.6
    3.下列说法正确的是( )
    A.中位数就是一组数据中最中间的一个数
    B.8,9,9,10,10,11这组数据的众数是9
    C.如果x1,x2,x3,…,xn的平均数是x,那么(x1-x)+(x2-x)+…+(xn-x)=0
    D.一组数据的方差是这组数据的平均数的平方
    4.春节期间某商家不小心把单价20元/????的大白兔糖2????与单价15元/????的小白兔糖3????混在一起,为了保持原来的利润,则混合后的定价至少为( )
    A.20元/???? B.19元/???? C.17元/???? D.18元/????
    5.某班体育委员对本班学生一周锻炼(单位:小时)进行了统计,绘制了如图所示的折线统计图,则该班这些学生一周锻炼时间的中位数是( )
    /
    A.10 B.11 C.12 D.13
    6.一组数据2,3,5,5,5,6,9.若去掉一个数据5,则下列统计量中,发生变化的是( )
    A.平均数 B.众数 C.中位数 D.方差
    7.随着智能手机的普及,抢微信红包成为了春节期间人们最喜欢的活动之一.某中学九年级二班班长对全班40名学生在春节期间所抢的红包金额进行统计,并绘制成了如图所示的统计图.根据统计图提供的信息,红包金额的众数和中位数分别是( )
    /
    A.30,15 B.15,15 C.30,30 D.15,30
    8.为考察甲、乙、丙、丁四种小麦的长势,在同一时期分别从中随机抽取部分麦苗,获得苗高(单位:cm)的平均数与方差为:
    ??

    =
    ??

    =13,
    ??

    =
    ??

    =15:s甲2=s丁2=3.6,s乙2=s丙2=6.3.则麦苗又高又整齐的是( )
    ================================================
    压缩包内容:
    第20章 数据的分析单元测试B卷(含解析).docx

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  • ID:4-5935241 [精]新目标2018-2019学年八年级下学期期末考试英语试卷(一)(含听力音频+答案解析)

    初中英语/期末专区/八年级下册

    一、单项选择(每小题1分,共20分)
    ( )21.People often ask “ What’s the ______ with you?” when they see someone seems sick.
    A.matter B.mistake C.worry D.question
    ( )22.The little boy had a _____, so he went to see the dentist.
    A.headache B.toothache C.stomachache D.fever
    ( )23.He plenty of money to the people in the earthquake area .
    A.gave out; to give up well B.gave away; help out them
    C.gave out; give them up D.gave away; to help them out
    ( )24.—Could you look after parrots for me while we’re away?
    — .
    A.Yes, please B.No, I’m not C.With pleasure D.You’re welcome
    ( )25.—Could you get me some tea?
    — .
    A.That's right B.You're right C.That's all right D.With pleasure
    ( )26.I’ll send you an e-mail ______ I get home.
    A.as soon as B.in order to C.so that D.unless
    ( )27.He finds hard to learn English well.
    A.this B.it C.its D.that
    ( )28.The work is hard and the children can’t finish it themselves.
    A.much too B.too much C.many too D.too many
    ( )29. beautiful park the Summer Palace is!
    A.How B.How a C.What D.What a
    ( )30.When the boy ____in the morning, his mother ______ breakfast.
    A.got up; was cooking B.get up; cooks
    C.got up; cooked D.got up; is cooking
    ( )31. the soldiers are very tired, they keep on working.
    A.Because; / B.Though; / C.Because; so D.Though; but
    ( )32.It took me a week to finish the novel.
    A.read B.to read C.reading D.reads
    ( )33.—Why did you open the window?
    —I wanted to ______ more fresh air.
    A.pick up B.get up C.take in D.fall down
    ( )34.Mount Changbai (长白山) ______ the northeastern border (边界) of China.
    A.ran along B.runs along C.ran around D.runs around
    ( )35.When the boy saw his mother, he ran quickly ______her.
    A.out B.from C.with D.towards
    ( )36.I have never got a letter from him ______ he left.
    A.as soon as B.when C.ever since D.while
    ( )37.—Someone is in the room. It must be Tom.
    —It can’t be Tom. He Shenzhen.
    A.has been to B.has been C.has gone to D.has gone
    ( )38.If it tomorrow, we’ll go to the park.
    A.will rain B.doesn’t rain C.won’t rain D.don’t rain
    ( )39.The film for half an hour.
    A.has begun B.began C.has been on D.on
    ( )40.—Oh, this is really a small old town.
    —Do you know when it ?
    A.has built B.was built C.will built D.will be built
    二、完型填空(每小题1分,共10分)
    I have a neighbor. She looks young and beautiful 41 she is over 70. She can do all the housework, read newspapers and learn something new on the Internet. I 42 see her do tai chi in the morning and dance in the evening.

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  • ID:4-5935080 [精]新目标2018-2019学年七年级下学期期末考试英语试卷(二)(含听力音频+答案解析)

    初中英语/期末专区/七年级下册

    一、单项选择(每小题1分,共20分)
    ( ) 21.— __________ do you want to join the singing club?
    — Because I like singing very much.
    A.Why B.When C.What D.How
    ( )22.Carol can play cards, and he can ______ play chess.
    A.really B.then C.all D.also
    ( )23.We do Chinese kung-fu four the afternoon.
    A.at; in B.in; in C.at; on D.in; on
    ( )24.How are they going to the countryside tomorrow, ______ bike or ____ foot?
    A.by, by B.on, on C.on, by D.by, on
    ( )25.Don’t let students go out _______ school nights.
    A.of B.in C.at D.on
    ( )26.— _______ late for class again,Lucy.
    — Sorry, I won’t.
    A.Don’t B.Don’t be C.Can’t D.Doesn’t
    ( )27.Let’s ______ the dolphins now. They are very smart.
    A.read B.watch C.look D.see
    ( )28.We can see dogs, sheep, ducks, cows and _________on the farm.
    A.other some animals B.some other animals
    C.the others animals D.some the other animals
    ( )29.— Where’s Dick?
    — He ________ in the river.
    A.swims B.is swimming C.waiting for D.swimming
    ( )30.—How's it ________ with you?
    —Not bad.
    A.go B.going C.to go D.goes

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  • ID:4-5935078 [精]新目标2018-2019学年七年级下学期期末考试英语试卷(一)(含听力音频+答案解析)

    初中英语/期末专区/七年级下册

    一、单项选择(每小题1分,共20分)
    ( ) 21.— Can your sister play the piano? — _________. But she can play the guitar.
    A.Yes, she can B.No, she can’t C.Yes, she does D.No, she doesn’t
    ( )22.My sister likes playing the piano , but she can’t play _________.
    A.good B.well C.better D.best
    ( )23.What time does your sister school and home every day?
    A.get; get B.get; get to C.get to; get to D.get to; get
    ( )24._____ do they get to school, by bike or by bus?
    A.How far B.How long C.How often D.How
    ( )25.— Don’t _______ there. Can’t you see the sign?
    — Sign? What sign?
    — No _______.
    A.swim;to swim B.swim;swim C.swimming;swim D.swim;swimming
    ( )26.It usually takes us ten minutes _______ to the supermarket.
    A.walk B.walks C.to walk D.walking
    ( )27.Mr. Li is kind _____ us. But sometimes he is kind ______ serious(严肃).
    A.to, of B.with, to C.of, to D.of, of
    ( )28.---_____ do you like giraffes?
    ---Because they’re very interesting.
    A.What B.How C.Why D.Where
    ( )29.— Is your uncle sleeping?
    — ________.
    A.No, I can’t B.Yes, I can C.Yes, he is D.No, he doesn’t
    ( )30.Thank you for ____ me to play the piano.
    A.teach B.teaches C.teaching D.teacher
    ( )31.A _____ wind arrived here last night. It blew (吹) _____.
    A.strong; strong B.strongly; strongly C.strongly; strong D.strong; strongly
    ( )32.Today is _____. Look! How beautiful the _____ is.
    A.cloudy; cloud B.cloud; cloudy C.cloud; cloud D.cloudy; cloudy
    ( )33.Go ______ the street and then turn right ______ the second crossing.
    A.along; at B.down; in C.straight; on D.straight; in
    ( )34.The bus stop is ______ Changjiang Street. You can walk there.
    A.behind B.in front of C.near D.between
    ( )35.Tim ______________ his father and his father ______________ very young.
    A.looks;looks B.looks like;looks C.looks;looks like D.looks like;looks like

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  • ID:3-5913490 [精]人教版2018-2019学年度下学期5月份月考八年级数学试卷(含解析)

    初中数学/月考专区/八年级下册


    2018——2019学年度第二学期5月份考试
    八年级数学试卷
    (测试范围:第18章﹣第19章 总分:120分 测试时间:90分钟)
    题号

    一、选择题(每小题3分,共30分)
    1.在平行四边形ABCD中,∠A:∠B:∠C:∠D的值可以是(  )
    A.1:2:3:4 B.1:2:2:1 C.1:2:1:2 D.1:1:2:2
    2.如果y=(m-1)
    ??
    2?
    ??
    2
    +3是一次函数,那么m的值是(  )
    A.1 B.?1 C.±1 D.±
    2
    3.如图,在菱形ABCD中,∠A=130°,连接BD,∠DBC等于(  )
    A.25° B.35° C.50° D.65°
    / / /
    第3题图 第4题图 第7题图
    4.一次函数y=﹣3x+b和y=kx+1的图象如图所示,其交点为P(3,4),则不等式kx+1≥﹣3x+b的解集在数轴上表示正确的是(  )
    A./ B./ C./ D./
    5.下列说法中正确的是(  )
    A.对角线相等的四边形是矩形 B.对角线互相垂直的四边形是菱形
    C.平行四边形的对角线平分一组对角 D.矩形的对角线相等且互相平分
    6.关于x的一次函数y=
    1
    2
    x+2,下列说法正确的是(  )
    A.图象与坐标轴围成的三角形的面积是4 B.图象与x轴的交点坐标是(0,2)
    C.当x>﹣4时,y<0 D.y随x的增大而减小
    7.如图,函数??=????+??与??=????+??的图象交于点??(1,2),那么关于x,y的方程组
    ??=????+??
    ??=????+??
    的解是(  )
    A.
    ??=2
    ??=1
    B.
    ??=1
    ??=2
    C.
    ??=3
    ??=2
    D.
    ??=3
    ??=1
    8.如图,DE,EF是△ABC的中位线,AB+BC=10,则四边形BFED的周长是(  )
    A.5 B.10 C.15 D.20
    9.如图,四幅图像分别表示变量之间的关系,请按图像的顺序,将下面的四种情境与之对应排序.
    /
    a.运动员推出去的铅球(铅球的高度与时间的关系);
    ================================================
    压缩包内容:
    人教版2018-2019学年度下学期5月份考试八年级数学试卷(含解析).docx

    • 2019-06-02
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  • ID:3-5906383 [精]人教版2018-2019学年度下学期5月份七年级月考数学试卷(含解析)

    初中数学/月考专区/七年级下册


    2018——2019学年度第二学期5月份考试
    七年级数学试卷
    (测试范围:第8章﹣第9章第2节 总分:120分 测试时间:90分钟)
    题号
    一
    二
    三
    总分
    
    得分
    
    
    
    
    
    一、选择题(每小题3分,共30分)
    1.在数学表达式:①x+y=1;②x≤y;③x-3y;④x2-3y>5;⑤x<0中,是不等式的有(  )
    A.2个 B.3个 C.4个 D.5个
    2.若??>??,则下列各式正确的是(  )
    A.?????<0 B.3???<3??? C.|??|>|??| D.
    ??
    3
    <
    ??
    3
    3.不等式4﹣2x>0的解集在数轴上表示为(  )
    A. / B. /
    C. / D. /
    4.已知方程组
    5??+??=4
    ??+5??=8
    则?????的值为(  )
    A.﹣1 B.2 C.12 D.﹣4
    5.若关于x的不等式(a–1)x>a–1的解集是x>1,则a的取值范围是( )
    A.a<0 B.a>0 C.a<1 D.a>1
    6.《九章算术》中记载:“今有共买羊,人出五,不足四十五;人出七,不足三,问人数、价价各几何“其大意是:今有人合伙买羊,若每人出5钱,还差45钱;若每人出7钱,还差3钱,问:合伙人数、羊价各是多少设合伙人数为??人,羊价为??钱,根据题意,可列方程组(  )
    A.
    ??=5???45
    ??=7??+3
    B.
    ??=5??+45
    ??=7??+3
    C.
    ??=5??+45
    ??=7???3
    D.
    ??=5???45
    ??=7???3
    7.关于x, y方程2x+y=9在正整数范围内,且x>y的解有(  )
    A.1组 B.2组 C.3组 D.4组
    8.某商店为了促销一种定价为3元的商品,采取下列方式优惠销售:若一次性购买不超过5件,按原价付款;若一次性购买5件以上,超过部分按原价八折付款.如果小明有30元钱,那么他最多可以购买该商品(  )
    A.9件 B.10件 C.11件 D.12件
    9.某种肥皂售价为每块2元,凡购买两块以上(含两块),商场推出两种优惠销售方法.第一种:“1块按原价,其余按原价的七折优惠”;第二种:“全部按原价的八折优惠”.你在购买相同数量的肥皂的情况下,要使第一种方法比第二种方法得到的优惠多,最少要购买肥皂(  )块 .
    ================================================
    压缩包内容:
    人教版2018-2019学年度下学期5月份考试七年级数学试卷(含解析).docx

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  • ID:4-5895897 [精]Unit 12 What did you do last weekend?单元测试A卷(含解析)

    初中英语/新目标(Go for it)版/七年级下/Unit 12 What did you do last weekend?/本单元综合与测试


    【人教版七年级英语(下)单元测试AB卷】
    Unit 12 What did you do last weekend?A卷
    班级:________ 姓名:________ 得分:________
    一、单选题(每小题1分,共20分)
    ( )1.My uncle went to Xinjiang________.
    A.a week before B.a week ago C.before a week D ago a week
    ( )2.—Your brother is an excellent basketball player.
    —So he is.He________ to play basketball three years ago.
    .starts B.is starting C.started D.is started
    ( )3.—________ you ________ to Nanhu Park a week ago
    —Yes.We had a good time there.
    A.Do;go B.Did;go C.Did;went D.Does;go
    ( )4.Your mother stayed up late last night. Don’t ______.
    A.wake up her B.wake her up C.woke up her D.woke her up
    ( )5.The little girl was ______ scared ______ she couldn’t move.
    A.such; that B.so; that C.too; to D.very; that
    ( )6.When we saw our first teacher again, we all got ______.
    A.surprise B.a surprise C.surprises D.surprising
    ( )7.It is dangerous to ______ a tent by the river on cloudy days.
    ================================================
    压缩包内容:
    Unit 12 What did you do last weekend?单元测试A卷(含解析).docx

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  • ID:4-5895892 [精]Unit 12 What did you do last weekend?单元测试B卷(含解析)

    初中英语/新目标(Go for it)版/七年级下/Unit 12 What did you do last weekend?/本单元综合与测试


    【人教版七年级英语(下)单元测试AB卷】
    Unit 12 What did you do last weekend?B卷
    班级:________ 姓名:________ 得分:________
    一、单选题(每小题1分,共20分)
    ( )1.—When did they _____ Wuhan
    —They _____ Wuhan yesterday afternoon.
    A.get...got to B.arrive...arrived in C.go...went to D.arrive in...arrived in
    ( )2.— Don’t _____ loudly in the reading room!
    —Sorry, sir. We will keep quiet.
    A.talk B.to talk C.talks D.talking
    ( )3.__________ your brother at home last night
    A.Did B.Was C.Is D.Does
    ( )4.I saw Jim _______ the violin in the music room.
    A.to play B.plays C.to playing D.playing
    ( )5.Mike is _______ after the long trip. He needs to sleep.
    A.tired B.busy C.dirty D.strict
    ( )6.__________ are important to us. We mustn’t cut them down.
    A.Animals B.Forests C.Vegetables D.Rivers
    ( )7.__________, Tom! It’s time to get up and go to school.
    A.Wake up B.Make up C.Grow up D.Look up
    ( )8.—How __________ your weekend
    ================================================
    压缩包内容:
    Unit 12 What did you do last weekend?单元测试B卷(含解析).docx

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  • ID:3-5895872 [精]第8章 二元一次方程组单元测试A卷(含解析)

    初中数学/人教版/七年级下册/第八章 二元一次方程组/本章综合与测试


    【人教版七年级数学(下)单元测试AB卷】
    第8章 二元一次方程组 A卷
    班级:________ 姓名:________ 得分:________
    一、选择题(每小题3分,共30分)
    1.下列方程中,二元一次方程是
    ??
    A.??+????=8 B.??=
    1
    2
    ???1 C.??+
    1
    ??
    =2 D.
    ??
    2
    +???3=0
    2.下列各组数值中,是方程 2x﹣y=8 的解的是( )
    A.
    ??=1
    ??=?2
    B.
    ??=2
    ??=0
    C.
    ??=0.5
    ??=?7
    D.
    ??=5
    ??=?2
    3.用加减法解方程组最简单的方法是( )
    A.①×3-②×2 B.①×3+②×2 C.①+②×2 D.①-②×2
    4.用加减消元法解方程组
    2??+3??=1 ①
    3???5??=?4 ②
    ,①-②得( )
    A.2y=1 B.5y=4 C.7y=5 D.-3y=-3
    5.若y =kx+b中,当x=-1时,y=1;当x=2时,y=-2,则k与b的值分别为
    A.
    ??=?1
    ??=1
    B.
    ??=?1
    ??=0
    C.
    ??=?1
    ??=2
    D.
    ??=1
    ??=-4
    6.二元一次方程2x+y=7的正整数解有(  )个.
    A.1 B.2 C.3 D.4
    7.我国古代《算法统宗》里有这样一首诗:“我问开店李三公,众客都来到店中,一房七客多七客,一房九客一房空.”诗中后两句的意思是:如果每一间客房住7人,那么有7人无房住;如果每一间客房住9人,那么就空出一间客房.设该店有客房x间、房客y人,下列方程组中正确的是(  )
    A.
    7??+7=??
    9(???1)=??
    B.
    7??+7=??
    9(??+1)=??
    C.
    7???7=??
    9(???1)=??
    D.
    7???7=??
    9(??+1)=??
    8.如果方程组
    3??+7??=10
    2????+
    ???1
    ??=5
    的解中的x与y的值相等,那么a的值是(  )
    A.1 B.2 C.3 D.4
    ================================================
    压缩包内容:
    第8章 二元一次方程组单元测试A卷(含解析).docx

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  • ID:3-5895870 [精]第8章 二元一次方程组单元测试B卷(含解析)

    初中数学/人教版/七年级下册/第八章 二元一次方程组/本章综合与测试


    【人教版七年级数学(下)单元测试AB卷】
    第8章 二元一次方程组 B卷
    班级:________ 姓名:________ 得分:________
    一、选择题(每小题3分,共30分)
    1.下列方程中,为二元一次方程的是( )
    A.2???3??=6?? B.2???3??=?6
    C.
    1
    ??
    ?3??=6?? D.2?????9=6
    2.用代入法解方程组
    3??+4??=2
    (1)
    2?????=5
    (2)
    . 使得代入后化简比较容易的变形是(  )
    A.由(1),得??=
    2?4??
    3
    B.由(1),得??=
    2?3??
    4
    C.由(2),得??=
    ??+5
    2
    D.由(2),得??=2???5
    3.方程组
    2??+3??=??
    3??+5??=??+2
    的解x、y的和为5,则m的值为( )
    A.3 B.5 C.7 D.9
    4.如图,AB⊥BC,∠ABD的度数比∠DBC的度数的2倍少15°,设∠ABD与∠DBC的度数分别为x°,y°,根据题意,下列方程组正确的是(  )
    /
    A.
    ??+??=90
    ??=???15
    B.
    ??+??=90
    ??=2???15
    C.
    ??+??=90
    ??=15?2??
    D.
    ??+??=90
    ??=2??+15
    5.二元一次方程3x+2y=15在自然数范围内的解的个数是(  )
    A.4个 B.3个 C.2个 D.1个
    6.一个三位数,个位数字比百位数字的2倍大1,十位数字比百位数字的3倍大1,十位数字比个位数字的2倍小3,求这个三位数.如果设百位、十位、个位数字分别为x,y,z,根据题意可列方程组为(  )
    A.
    ???2??=1
    ???3??=1
    ???2??=3
    B.
    ???2??=1
    ???3??=1
    2?????=3
    C.
    2?????=1
    ???3??=1
    2?????=3
    D.
    ???2??=1
    ??+3??=1
    2?????=3
    7.方程组
    2??+??=?
    ??+??=3
    的解为
    ??=2
    ??=?
    ,则被遮盖的两个数(按从左往右的顺序)分别为( )
    A.2,1 B.1,5 C.5,1 D.2,4
    ================================================
    压缩包内容:
    第8章 二元一次方程组单元测试B卷(含解析).docx

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  • ID:4-5881234 [精]Unit 11 How was your school trip?单元测试B卷(含解析)

    初中英语/新目标(Go for it)版/七年级下/Unit 11 How was your school trip?/本单元综合与测试

    【人教版七年级英语(下)单元测试AB卷】 Unit 11 How was your school trip?B卷 班级:________ 姓名:________ 得分:________ 一、单选题(每小题1分,共20分) ( )1.Lucy and Lily ________ the museum and ________ a lot of gifts yesterday. A.visit;bought B.visited;bought C.visited;buy D.visit;buy ( )2.It is exciting ________ a horse in the countryside. A.riding B.to ride C.rode D.ride ( )3.—Did you see any chickens —Yes,I saw ________ a lot. A.very B.quite C.quiet D.so ( )4.Mr.Chen was our ________ on the trip.He told us many stories about the museum. A.musician B.teacher C.guide D.actor ( )5.Maria spent two hours ________ the piano last night. A.played B.to play C.playing D.plays ( )6.—Who cleaned the classroom —Lucy ________. A.do B.can C.is D.did ( )7.—________ you free yesterday —Yes,I ________. A.Did;did B.Were;was C.Are;am D.Were;were ( )8.—Who cooked the lunch today — I _______. ================================================ 压缩包内容: Unit 11 How was your school trip?单元测试B卷(含解析).docx

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  • ID:4-5881230 [精]Unit 11 How was your school trip?单元测试A卷(含解析)

    初中英语/新目标(Go for it)版/七年级下/Unit 11 How was your school trip?/本单元综合与测试

    【人教版七年级英语(下)单元测试AB卷】 Unit 11 How was your school trip?A卷 班级:________ 姓名:________ 得分:________ 一、单选题(每小题1分,共20分) ( )1.—Is there ________ important in today’s newspaper —Yes,quite a lot. A.everything B.every thing C.nothing D.anything ( )2.At school Rose is ________ excellent student and all her teachers and classmates like her. A.a B.an C.the D./ ( )3.The children went to the mountains ________ Friday afternoon. A.at B.for C.on D.in ( )4.—Did you take any photos in the zoo —________.But Dave took some. A.Yes,I was B.No,I wasn’t C.Yes,I did D.No,I didn’t ( )5.Thanks for giving me ________help. A.so much B.so many C.such much D.such many ( )6.It’s 6:30 p.m. Let’s ____ the children first and then have our dinner. A.leave B.describe C.feed D.save ( )7.Rick, can you teach me _______ to play the guitar A.where B.how C.when D.why ( )8.—Hi, Diana, how was your summer holiday —________! I enjoyed myself in the sea very much. A.Good idea B.Wait a minute C.That’s too bad D.Pretty good ( )9.—Lin Dan is my favorite sports star. I met him last weekend. —_______. A.Yes, please B.I see C.Lucky you D.You’re right ( )10.—Did Molly go to the library yesterday —_______. A.Yes, she was B.Yes, she is C.Yes, she does D.Yes, she did ================================================ 压缩包内容: Unit 11 How was your school trip?单元测试A卷(含解析).docx

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  • ID:4-5869765 [精]人教版七年级英语(下)第二次月考试卷(Unit7-Unit9)(解析+听力音频)

    初中英语/月考专区/七年级下册

    笔试部分(共100分) 一、单项选择(每小题1分,共20分) ( )21.—What are you doing there? —I am ________.Breakfast is OK soon. A.running B.singing C.sleeping D.cooking ( )22.The weather is cool and it's right ________ walking. A.for B.to C.with D.at ( )23.—I’m going to Beijing for a vacation. —________! A.It’s good B.You’re right C.Have a good time D.Goodbye ( )24.It is Sunday today.Some of my old friends ________in the park. A.is playing B.playing C.plays D.are playing ( )25.—________? —They are taking a test. A.Who are they B.Where are they C.What can they do D.What are they doing ( )26.—Hello!Is that Mr. Liu speaking? —Yes.________ A.I am. B.Who are you? C.I'm speaking. D.Who's that? ( )27.—Hi,Cindy!________ is it going? —Pretty good. A.Where B.What C.How D.Who ( )28.The post office is ________ the street. A.next B.in the front of C.between D.across from ( )29.—Do you enjoy ________ computer games on weekends? —Yes,I do. A.play B.playing C.to play D.plays ( )30.—Excuse me.______? —Go along this street to the end,and you will see it on your left. A.Which bus should I take B.Which is the way to the post office C.How far is the post office near here D.How many post offices are there ( )31.Welcome to Disneyland!It is a______ place to______. A.good;walking B.fine;enjoy C.great;have fun D.good;having fun ( )32.Go along the road and turn______.There is a big clothes store. A.to left B.the left C.left D.in left ( )33.I'm looking for a ______.I want to buy a hat for my father. A.store B.bank C.library D.hospital ================================================ 压缩包内容: 人教版七年级英语(下)第二次月考试卷(Unit7-Unit9)(含解析).docx 人教版七年级英语(下)第二次月考试卷(Unit7-Unit9)(声音文件).mp3

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  • ID:4-5869764 [精]人教版八年级英语(下)第二次月考试卷(Unit6-Unit8)(解析+听力音频)

    初中英语/月考专区/八年级下册

    一、单项选择(每小题1分,共20分) ( )21.—It rained hard this morning. How did you go to work? —I was ________ to meet Mr. Miller near my home. He gave me a ride. A.enough lucky B.lucky enough C.enough clever D.clever enough ( )22.They offered help ________ they learned of the accident. They are really warm-hearted. A.as soon as B.as long as C.although D.since ( )23.Animals are humans’ friends. We should ______ them by special laws. A.protect B.drop C.kill D.buy ( )24.Please feel free ______ and make yourself at home. A.look around B.looks around C.to look around D.looking around ( )25.An elephant eats ______ than a panda. A.many time more B.many times much C.many times more D.much time more ( )26.China has the______population in the world. A.more B.most C.largest D.larger ( )27.—When did you ______ the top of the mountain? —At 11:45 a.m. A.arrive B.reach C.get D.climb ================================================ 压缩包内容: 人教版八年级英语(下)第二次月考试卷(Unit6-Unit8)(含解析).docx 人教版八年级英语(下)第二次月考试卷(Unit6-Unit8)(声音文件).mp3

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  • ID:3-5861449 [精]第19章 一次函数单元测试B卷(含解析)

    初中数学/人教版/八年级下册/第十九章 一次函数/本章综合与测试

    【人教版八年级数学(下)单元测试AB卷】 第19章 一次函数 B卷 班级:________ 姓名:________ 得分:________ 一、选择题(每小题3分,共30分) 1.在平面直角坐标系中,将直线l1:y=﹣3x+3平移后得到直线l2:y=﹣3x﹣6,则下列平移的做法正确的是(  ) A.将l1向左平移3个单位 B.将l1向左平移9个单位 C.将l1向下平移3个单位 D.将l1向上平移9个单位 2.如图,一次函数y=k1x+b1的图像l1与y=k2x+b2的图像l2相交于点P,则方程组 ??= ?? 1 ??+ ?? 1 ??= ?? 2 ??+ ?? 2 的解是(  )  A. ??=?3 ??=2 , B. ??=2 ??=?3 , C. ??=3 ??=2 , D. ??=?3 ??=?2 / / 第2题图 第3题图 3.若函数??=????+??的图象如图所示,则关于??的不等式????+??<0的解集为( ) A.??<3 B.??>3 C.??<6 D.??>6 4.根据图(1)可以得到如图(2)的y与x之间关系,那么m,n的值是(  ) / A.?3,3 B.3,?3 C.3,3 D.?3,?3 5.下列关于一次函数??=?2??+5的说法,错误的是(  ) A.函数图象与y轴的交点是(0,5) B.当x值增大时,y随着x的增大而减小 C.当??>5时,??<0 D.图象经过第一、二、三象限 6.已知直线y=ax+b(a≠0)经过第一,二,四象限,那么直线y=bx-a一定不经过( ?? ) A.第一象限 B.第二象限 C.第三象限 D.第四象限 7.某商店在节日期间开展优惠促销活动:购买原价超过500元的商品,超过500元的部分可以享受打折优惠.若购买商品的实际付款金额y(单位:元)与商品原价x(单位:元)的函数关系的图像如图所示,则超过500元的部分可以享受的优惠是( ) A.打六折 B.打七折 C.打八折 D.打九折 / / / 第7题图 第8题图 第10题图 ================================================ 压缩包内容: 第19章 一次函数单元测试B卷(含解析).docx

    • 2019-05-21
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  • ID:3-5861447 [精]第19章 一次函数单元测试A卷(含解析)

    初中数学/人教版/八年级下册/第十九章 一次函数/本章综合与测试

    【人教版八年级数学(下)单元测试AB卷】 第19章 一次函数 A卷 班级:________ 姓名:________ 得分:________ 一、选择题(每小题3分,共30分) 1.函数??= ???4 中自变量x的取值范围是(  ) A.x≥0 B.x>4 C.x<4 D.x≥4 2.点??(1,??)在函数??=2??+1的图象上,则点??的坐标是( ) A.(1,2) B.(1,2) C.(1,3) D.(3,1) 3.已知一次函数y=(3﹣a)x+3,如果y随自变量x的增大而增大,那么a的取值范围为(  ) A.a<3 B.a>3 C.a<﹣3 D.a>﹣3. 4.已知P1(﹣3,y1),P2(2,y2)是一次函数??=????1的图象上的两个点,则y1,y2的大小关系是( ) A.y1=y2 B.y1<y2 C.y1>y2 D.不能确定 5.有一游泳池中注满水,现按一定的速度将水排尽,然后进行清扫,再按相同的速度注满水,使用一段时间后,又按相同的速度将水排尽,则游泳池的存水量??(立方米)随时间??(小时)变化的大致图像是( ) A./ B./ C./ D./ 6.如图中的两直线l1、l2的交点坐标可以看作哪个方程组的解 / A. ??=? 1 3 ???1 ??=?2??+4 B. ??= 1 3 ???1 ??=?2??+4 C. ??=? 1 3 ???1 ??=?2??+4 D. ??=3???1 ??=?2??+4 7.如果kb<0,且不等式kx+b>0解集是x<- ?? ?? ,那么函数y=kx+b的图像只可能是下列的( ) A./ B./ C./ D./ 8.直线??=??+4和直线??=???+4与x轴围成的三角形的面积是( ) A.32 B.64 C.16 D.8 9.周末,小李8时骑自行车从家里出发,到野外郊游,16时回到家里.他离家的距离s(千米)与时间t(时)之间的关系可以用图中的折线表示.现有如下信息:①小李到达离家最远的地方是14时;②小李第一次休息时间是10时;③11时到12时,小李骑了5千米;④返回时,小李的平均速度是10千米/时.其中,正确的有( ) / A.1个 B.2个 C.3个 D.4个 ================================================ 压缩包内容: 第19章 一次函数单元测试A卷(含解析).docx

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