浙江省嘉兴市嘉善一中等五校2013-2014学年七年级上学期期中联考数学试卷
嘉兴市嘉善一中等五校2013-2014学年第一学期期中联考
七年级数学试卷
命题学校:平湖市城关中学,命题人:王飞, 核对人:陆永良
一、选择题(每题3分,共30分)
1(在下列选项中,具有相反意义的量是
( ? )A.收入20元与支出30元 B(6个老师和7个学生
C(走了10米和跑了10米 D(向东行30米和向北行30米
2(下列四个数中,哪一个数在,2和0之间( ? )
A(,3 B( 3 C(,1 D(1
11x,y1222,ab3(下列各式:,,-25,,,中单项式的个数有 ( ? ) aab,2x,15x22
A(4个 B(3个 C(2个 D(1个
4(据浙江省防汛防台指挥部10月11日公布的数据,在台风“菲特”中,浙江省共874.25
万人受灾,直接经济损失为275.58亿元,把874.25万人用科学记数法可以记为
( ? )
248.742510,万人8.742510,万人A( B(
568.742510,万人8.742510,万人 C( D(
5(下列各组数中,数值相等的是
试场___________班级______________姓名_______________考号______________ ( ? )
2232333,,27,93,3(,2)(,3)A(和 B(和 C(和 D(和 2,2
6(下列各式中符合代数式书写规范的是
( ? )
16ab,元b,2A( B( C( D( 2xy
35
7(有理数a、b在数轴上的位置如图所示,那么下列式子中成立的是 ( ? )
,,abab,,A( B( ab0aab,0,0C( D(
b
8(已知有理数x的近似值是5.40,则x的取值范围是 ( ? )
A. 5.395
一年级
小学一年级数学20以内加减练习题小学一年级数学20以内练习题小学一年级上册语文教学计划人教版一年级上册语文教学计划新人教版一年级上册语文教学计划
学生在5名教师的带领下去公园秋游,公园的门票为每人30
元.现有两种优惠方案,甲方案:带队教师免费,学生按8折收费;乙方案:师生都7.5
折收费.
(1)若有名学生,用代数式表示两种优惠方案各需多少元, m
(2)当分别为70名和100名时,采用哪种方案优惠, m
(3)当学生至少几人时,选乙方案比较优惠,
.
a26((本小题7分)小明、小李、小刚、小林四人的家都在同一幢楼里(楼层高为米),他
们的家分别在3楼,10楼,12楼,6楼。上周日,小明、小李、小刚三人都在小林家
玩,下午五点他们打算乘同一部电梯回家。
(1)若他们三个决定先送小刚回家,接着送小李回家,最后送小明回家。则电梯一共运行
a了几米,(用含的代数式表示)
a(2)若=3米,为了使三人尽快到家,应怎样安排回家的顺序,此时,电梯运行了几米, (3)如果电梯每启动一次的耗电量约为0.1度,运行一层的耗电量约为0.4度,请问为了
让他们三人尽快到家电梯至少需要耗电多少度,
答案及评分
标准
excel标准偏差excel标准偏差函数exl标准差函数国标检验抽样标准表免费下载红头文件格式标准下载
一、选择题(每小题3分,共30分)
题号 1 2 3 4 5 6 7 8 9 10
密 封 装 订 线
„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„
„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„„
选项 A C C A B D B C D D 二、填空题(本题10小题,每小题3分,共30分)
111(_____近似数______。12(______-8___; ;______2_________。
8
213(_______-1__________。14(______1.80________。15(__________;_____3_____。,
316(_____________。17(_____4_______;_______3______;_____-4________。,2
18(_______0.99a______。19(_______-57______。20(_______ ________。 ,3三、解答题(共40分,其中21、23、25、26每题6分,22、26每题8分。)
3,566321.(1)无理数有:{ , , ,, }„„„„„„4分 ,
3,5366(2)用“<”号按从小到大连接:<<,<。„„„„„„„2分
22(计算:
312(1) (2)( ,,,,310910,,,,,1()()
4241 =-3-7„„„„1分 „„„„1分 ,,,1
341 =-10„„„„„2分 „„„„„„„„2分 ,
3
230.49364,,,(3) (4)( 3604(2)[2(3)],,,,,,
„„„„1分 „„„„„„1分 ,,,9045,,,,0.73(4)
,,,,0.71211.3„„„„2分 ,70„„„„„„„„„2分
11,,2223(, 2(4)8aabaabab,,,,,,22,,
1122=„„„„„„1分 2(28)aabaabab,,,,
22
1122=„„„„„„1分 228aabaabab,,,,
22
8ab=„„„„„„„„„„„„„„„„„„2分
11当,=- 时,„„„„„„1分 a,1b881()ab,,,,33
8 =„„„„„„„„„1分 ,
3
b2,ab24.(1)„„„„„„„„3分; (2)14.88 „„„„„„3分 ,2
25( (1),„„„„„„„„„„„„„„„„„„„„„„2分; 24m22.5(5)m,
(2)当时,甲方案需:m=701680元;乙方案需:1687.5元。选甲„„2分
„„2分 当时,甲方案需:m=1002400元;乙方案需:2362.5元。选乙(3)当学生数至少76人时,选乙方案比较优惠。„„„„„„„„„„„„„1分
15a米26( (1)„„„„„„„„„„„„„„„„„„„„„„„„„„2分
(2)回家的顺序:小明 小李 小刚;„„„„„„„„„„„„„2分
36米此时,电梯运行了„„„„„„„„„„„„„„„„„„„„„1分
120.40.135.1,,,,度(3)电梯至少需耗电:。„„„„„„„„„„2分