华东师大版数学七年级上册 5.2.3 平行线的性质同步课时练习题

适用年级：初一
试卷号：182452

试卷类型：课时练习
试卷考试时间：2018/8/7

1.单选题(共10题)

如图AB∥CD，∠E=40°，∠A=110°，则∠C的度数为（）

A. 60° B. 80° C. 75° D. 70°

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如图，把等腰直角三角板的直角顶点放在刻度尺的一边上，若∠1＝60°，则∠2的度数为( )

A．30°

B．40°

C．50°

D．60°

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如图，若AD∥BC，则有①∠A＋∠B＝180°；②∠B＋∠C＝180°；③∠C＋∠D＝180°.上述结论中正确的是( )

A．①

B．①和②

C．①和③

D．②和③

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如图，直线a，b被直线c，d所截，若∠1＝∠2，∠3＝115°，则∠4的度数为( )

A．55°

B．60°

C．65°

D．75°

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如图，在△ABC中，∠ACB＝90º，CD∥AB，∠ACD＝40º，则∠B的度数为()

A．40º

B．50º

C．60

D．70º

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如图，已知∠1＝60°，如果CD∥BE，那么∠B的度数为( )

A．70°

B．100°

C．110°

D．120°

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如图，已知AB⊥GH，CD⊥GH，直线CD，EF，GH相交于一点O，若∠1=42°，则∠2等于（　　）

A．130°

B．138°

C．140°

D．142°

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如图，AB∥ED，则∠A＋∠C＋∠D＝（）

A．180°

B．270°

C．360°

D．540°

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如图，直线l截两平行直线a，b，则下列式子不一定成立的是（）

A．∠1=∠5

B．∠2=∠4

C．∠3=∠5

D．∠5=∠2

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10.

两条直线被第三条直线所截，若∠1和∠2是同旁内角，且∠1=75°，则∠2为（　　）

A．75°

B．105°

C．75°或105°

D．大小不确定

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2.选择题(共2题)

11.

根据短文内容，选择最佳答案。
Hello, everyone(每个人)! My name is Bob. I live in Toronto, Canada. It's a very beautiful city. My parents are from France. They speak French. And I can speak English and French.
I am 13 years old and my birthday is in November. I'm a middle school student. There are thirteen girls and fifteen boys in my class. They are from five countries. They all come to learn English. There are eight Chinese students in my class and six of them are my good friends. I like China very much because it is a great country. I want to learn Chinese. And I want to go to China.

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12.Which place are the speakers talking about?

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