人教版七年级数学下册同步练习题 5.2 平行线及其判定

适用年级:初一
试卷号:182727

试卷类型:课时练习
试卷考试时间:2019/2/16

1.单选题(共12题)

1.
如图,有以下四个条件:①∠B+∠BCD=180°,②∠1=∠2,③∠3=∠4,④∠B=∠5.其中不能判定AB∥CD的条件是(   )
A.①B.②C.③D.④
2.
如图,能判定EC∥AB的条件是(  )
A.∠B=∠ACEB.∠A+∠ACD=180°C.∠ACE=∠DCED.∠A=∠ACE
3.
如图,下列条件中,不能判断直线l1∥l2的是( )
A.∠1=∠3B.∠2=∠3C.∠4=∠5D.∠2+∠4=180°
4.
如图,能判断直线AB∥CD的条件是(   )
A.∠1=∠2B.∠3=∠4
C.∠1+∠3=180°D.∠3+∠4=180°
5.
如图,能判定EB∥AC的条件是(  )
A.∠C=∠ABEB.∠A=∠EBDC.∠C=∠ABCD.∠A=∠ABE
6.
如图,下列能判定AB∥CD的条件有(   )个.
(1)∠B+∠BCD=180°;
(2)∠1=∠2;
(3)∠3=∠4;
(4)∠B=∠5.
A.1B.2C.3D.4
7.
对于图中标记的各角,下列条件能够推理得到a∥b的是(  )
A.∠1=∠2B.∠2=∠4
C.∠3=∠4D.∠1+∠4=180°
8.
如图,用两个相同的三角板按照如图方式作平行线,能解释其中道理的定理是(    )

A. 同位角相等两直线平行   B. 同旁内角互补,两直线平行
C. 内错角相等两直线平行   D. 平行于同一条直线的两直线平行
9.
如图,已知∠1=70°,要使AB∥CD,则需具备的另一个条件是(    )
A.∠2=70°B.∠2=100°C.∠2=110°D.∠3=110°
10.
如图,∠1=∠2,则下列结论一定成立的是(  )
A.ABCDB.ADBCC.∠B=∠DD.∠3=∠4
11.
下列图形中,能由∠1=∠2得到AB∥CD的是()
A.B.C.D.
12.
过一点画已知直线的平行线,则( )
A.有且只有一条B.有两条C.不存在D.不存在或只有一条

2.选择题(共7题)

13.There are lots of visitors on the beach. They{#blank#}1{#/blank#}(大部分地)come from China.
14.

爸爸一早就去修补被风吹坏了的塑料大棚。大棚上积压了一层厚厚的尘土,我和妈妈拿着扫把去打扫尘土。”下图为吴慈仁同学家的“大棚”示意图。建大棚主要是为了改善当地的(    )

15.

爸爸一早就去修补被风吹坏了的塑料大棚。大棚上积压了一层厚厚的尘土,我和妈妈拿着扫把去打扫尘土。”下图为吴慈仁同学家的“大棚”示意图。建大棚主要是为了改善当地的(    )

16.

爸爸一早就去修补被风吹坏了的塑料大棚。大棚上积压了一层厚厚的尘土,我和妈妈拿着扫把去打扫尘土。”下图为吴慈仁同学家的“大棚”示意图。建大棚主要是为了改善当地的(    )

17.配对阅读:下表左栏是五个人物介绍,右栏是家电用品介绍,请根据每个人对家电用品需求,为他们选择合适的家电用品。

( B )

{#blank#}1{#/blank#}Bob is often late for school because he always gets up late. This makes his teacher mad. He needs to buy something to wake him up in the morning.

{#blank#}2{#/blank#}Tim likes listening to music when he is free. And he has to send e-mails to his customers every day. He wants to buy something that can help him.

{#blank#}3{#/blank#}Summer has come. Tony is fat and he can't sleep well on such hot days. This troubles him a lot. He'd like to buy something to make him feel cool.

{#blank#}4{#/blank#}Alice often washes her hair late at night. It is often wet when she goes to bed. She is going to buy something that can dry her hair in a short time.

{#blank#}5{#/blank#}Susan is a housewife. She has to do the washing for her family every day. She gets tired of it. She is in need of a product to do it for her. 

A. This electric product can make you cool during the hot days. It can help you change the temperature and control the humidity(湿度)of your room.

B. You can do many things with this product, such as sending e-mails, playing games, getting on line and so on. You can also listen to music with it when you want to relax.

C. This electric product is useful to all of us. People often have one at home. It is often put up on the wall. If you want to know the time, just take a look at it.

D. This can help you wash your dirty clothes and dry them. What you need to do is to turn it on and later hang the clothes on the line. With this electric product, life will be a lot easier for you.

E. Each family needs this product. You can use it to store meat, vegetables, fruits, drinks and medicine. It can keep them cool and fresh so that they will not go bad easily on hot days.

F. It is a very helpful product which tells you the time. It can wake you up with a piece of music any time you want, but you have to set the time first.

G. When you wash your hair, you need this product. It can make your wet hair dry in a minute. It can also be used for drying your wet clothes or some other wet things.

18.

当人的心脏房室瓣关闭、动脉瓣张开时,心脏中血液的流动情况是(  )

19.

在体循环和肺循环中,血液流动的正确方向是(  )

3.填空题(共4题)

20.
如图,直线a、b被直线c所截,若满足     ,则a、b平行.
21.
已知为平面内三条不同直线,若,则的位置关系是
22.
如图,两直线a.b被第三条直线c所截,若∠1=50°,∠2=130°,则直线a.b的位置关系是____________ .
23.
在同一平面内,_____________________叫作平行线.

4.解答题(共4题)

24.
如图所示,已知∠1=∠2,AC平分∠DAB,试说明DC∥AB.
25.
如图,已知∠A=∠F,∠C=∠D.求证:BD∥CE.
26.
看图填空:
如图,∠1的同位角是  
∠1的内错角是  
如果∠1=∠BCD,那么  ,根据是  
如果∠ACD=∠EGF,那么 ,根据是   .
27.
如图,已知:∠B=∠D+∠E,试说明:AB∥CD.
试卷分析
  • 【1】题量占比

    单选题:(12道)

    选择题:(7道)

    填空题:(4道)

    解答题:(4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:6

    7星难题:0

    8星难题:6

    9星难题:8