2010-2011学年江苏省南京市第三初级中学七年级上学期期中数学试卷（带解析）

1.

的相反数是

A．2

B．

C．

D．

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2.

受“莫拉克”台风影响，台湾引发了50年不遇的严重水灾，截至2009年8月19日止，大陆各界向台湾受灾同胞捐款总数已达1.76亿元人民币，把1.76亿元进行科学记数正确的是（）.

A．1.76

元

B．1.76

元

C．1.76

元

D．0.176

元

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3.

My dad is going to Cuba _____________. He will stay there for a week.

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4.

根据所给词的适当形式、音标或语境的提示，完成短文。

Watertown is a great place for a family to take a vacation. Teenagers want to visit the world's {#blank#}1{#/blank#} (large) water slides and eat at the Uncle Bob's. A different rock band {#blank#}2{#/blank#} (play) at Uncle Bob's every night. Kids will enjoy the Clown City Café. They have organized games and the staff dress up {#blank#}3{#/blank#} ([æz])clowns(小丑).

There is also a lot for parents in Watertown. {#blank#}4{#/blank#} ([if]) they love good food, they can find it at the Farmer's Market where the food is both {#blank#}5{#/blank#} [dɪ'lɪʃəs] and cheap. While the children have fun, parents can take dance lessons on the beach. And {#blank#}6{#/blank#} (['evribɒdi]) can learn something in Watertown. There are three {#blank#}7{#/blank#} (museum). Teenagers love the Sports Museum and kids enjoy the Science Museum. Parents will spend many hours {#blank#}8{#/blank#} (walk) through the History Museum.

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5.

根据所给词的适当形式、音标或语境的提示，完成短文。

Watertown is a great place for a family to take a vacation. Teenagers want to visit the world's {#blank#}1{#/blank#} (large) water slides and eat at the Uncle Bob's. A different rock band {#blank#}2{#/blank#} (play) at Uncle Bob's every night. Kids will enjoy the Clown City Café. They have organized games and the staff dress up {#blank#}3{#/blank#} ([æz])clowns(小丑).

There is also a lot for parents in Watertown. {#blank#}4{#/blank#} ([if]) they love good food, they can find it at the Farmer's Market where the food is both {#blank#}5{#/blank#} [dɪ'lɪʃəs] and cheap. While the children have fun, parents can take dance lessons on the beach. And {#blank#}6{#/blank#} (['evribɒdi]) can learn something in Watertown. There are three {#blank#}7{#/blank#} (museum). Teenagers love the Sports Museum and kids enjoy the Science Museum. Parents will spend many hours {#blank#}8{#/blank#} (walk) through the History Museum.

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6.

师生交往是学校生活的重要内容。下列属于平等、民主、和谐的师生关系的有（）

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7.

师生交往是学校生活的重要内容。下列属于平等、民主、和谐的师生关系的有（）

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8.

根据句意，用括号内所给提示完成句子。

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9.

如果向北走40米记为是+40米，那么向南走70米记为_____ .

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10.

比较大小：

.

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11.

绝对值不小于4但小于6的整数有_______个，他们分别是___________.

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12.

三个连续整数最小的一个数是ｎ，那么它们的和是 .

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13.

已知 |x|="3" , |y|=2，且xy>0，则x—y的值等于 .

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14.

用同样规格的黑白两种颜色的正方形瓷砖，按下图的方式铺地板，则第n个图形中需要黑色瓷砖_____块(用含n的代数式表示)．

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15.

有8筐白菜，以每筐25千克为标准，超过的千克数记作正数，不足的千克数记作负数，称后的纪录如下：

回答下列问题：
（1）这8筐白菜中最接近标准重量的这筐白菜重　　千克；
（2）这8筐白菜一共重多少千克？

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16.

初一年级学生在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m名学生，用代数式表示两种优惠方案各需多少元？
(2)当m=70时，采用哪种方案优惠？
(3)当m=100时，采用哪种方案优惠？

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17.

如图①所示是一个长为2m，宽为2n的长方形，沿图中虚线用剪刀均分成四个小长方形，然后按图②的方式拼成一个正方形。
(1)你认为图②中阴影部分的正方形的边长等于________．
(2)请用两种不同的方法列代数式表示图②中阴影部分的面积。
方法①___________________________________．
方法②___________________________________．
(3)观察图②，试写出