2017-2018学年八年级数学人教版16.2二次根式定义的乘除同步练习

适用年级:初二
试卷号:596806

试卷类型:课时练习
试卷考试时间:2018/2/14

1.单选题(共7题)

1.
小明的作业本上有以下四题①;②;③;④.其中做错误的是(  )
A.①B.②C.③D.④
2.
计算÷÷的结果是(    )
A.B.C.D.
3.
 ,则(  )
A.x≥6B.x≥0C.0≤x≤6D.x为一切实数
4.
互为倒数,则(    )
A.a=b-1B.a=b+1C.a+b=1D.a+b=-1
5.
当x取某一范围的实数时,代数式的值是一个常数,该常数是(  )
A.29B.16C.13D.3
6.
下列各式不是最简二次根式的是(    )
A.B.C.D.
7.
已知是正整数,则实数n的最大值为(    )
A.12B.11C.8D.3

2.选择题(共2题)

8.语法填空

    There're something you should pay attention to when you're in Thailand.

    There's one thing for sure: Don't touch the head Thai people are very {#blank#}1{#/blank#} (friend). After all, it is known as the “Land of Smiles”, but like any other country there're some customs visitors should follow in case you offend (冒犯) someone unknowingly.

    The head of a person or statue (雕像) in Thailand is regarded as {#blank#}2{#/blank#} most important part of the body. It {#blank#}3{#/blank#} (consider) rude to touch a stranger's head, as it would be in most countries around the world. It is also impolite to touch the head of a statue,{#blank#}4{#/blank#} (especial) a statue of the Buddha (佛). Certainly, close friends {#blank#}5{#/blank#} family members often touch each other's heads or hair,{#blank#}6{#/blank#} is not rude.

    And, of course, another thing is very important: Know where your feet are. Visitors should try to avoid {#blank#}7{#/blank#} (point) their feet directly at another person or Buddha statue. It is also not proper to step over a person or a Buddha statue.{#blank#}8{#/blank#} other words, your feet should always be {#blank#}9{#/blank#} (low) than another person's head.

    Buddhism plays a key role in the country's culture. Therefore {#blank#}10{#/blank#} (tourist) need to show respect towards the religion (宗教).

9.树叶落在马路上,当一辆高速行驶的汽车驶过路面时,树叶将(  )

3.填空题(共4题)

10.
________;
11.
已知三角形的一边长为,这边上的高为,则这个三角形的面积是______.
12.
计算 =____________.
13.
已知,则

4.解答题(共3题)

14.
等式=一定成立吗?
15.
若x为奇数,且,试求的值.
16.
你能比较的大小吗?其中k为正整数.
试卷分析
  • 【1】题量占比

    单选题:(7道)

    选择题:(2道)

    填空题:(4道)

    解答题:(3道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:7

    7星难题:0

    8星难题:5

    9星难题:2