1.单选题- (共4题)
等于（ ）
| A．(2x＋3y) (－2x＋3y) | B．(a－2b) (a＋2b) |
| C．(－x－2y) (x＋2y) | D．(－2x－3y) (3y －2x) |
A． |
B． |
C． |
D． |
2.选择题- (共14题)
A : {#blank#}1{#/blank#} you happy with our new house, Winnie?
B : Yes. I like the living room best.
A : {#blank#}2{#/blank#}?
B : Because it faces {#blank#}3{#/blank#}. There's a lot of sunshine.
A: What do you want to {#blank#}4{#/blank#} in the living room.
B: I want to have a party with my friends.{#blank#}5{#/blank#} room do you like, Mum?
A: I like the {#blank#}6{#/blank#}. There are many books in it. I can read books in it.
A : {#blank#}1{#/blank#} you happy with our new house, Winnie?
B : Yes. I like the living room best.
A : {#blank#}2{#/blank#}?
B : Because it faces {#blank#}3{#/blank#}. There's a lot of sunshine.
A: What do you want to {#blank#}4{#/blank#} in the living room.
B: I want to have a party with my friends.{#blank#}5{#/blank#} room do you like, Mum?
A: I like the {#blank#}6{#/blank#}. There are many books in it. I can read books in it.
A : {#blank#}1{#/blank#} you happy with our new house, Winnie?
B : Yes. I like the living room best.
A : {#blank#}2{#/blank#}?
B : Because it faces {#blank#}3{#/blank#}. There's a lot of sunshine.
A: What do you want to {#blank#}4{#/blank#} in the living room.
B: I want to have a party with my friends.{#blank#}5{#/blank#} room do you like, Mum?
A: I like the {#blank#}6{#/blank#}. There are many books in it. I can read books in it.
A : {#blank#}1{#/blank#} you happy with our new house, Winnie?
B : Yes. I like the living room best.
A : {#blank#}2{#/blank#}?
B : Because it faces {#blank#}3{#/blank#}. There's a lot of sunshine.
A: What do you want to {#blank#}4{#/blank#} in the living room.
B: I want to have a party with my friends.{#blank#}5{#/blank#} room do you like, Mum?
A: I like the {#blank#}6{#/blank#}. There are many books in it. I can read books in it.
Miss Lee is 21 years old. She likes students and her work. From Monday to Friday she stays at school and gives the students lessons. She has much work to do, but she often plays games with her students after school. On Sundays, she drives to her parents' home and stays with them. Sometimes she goes to see her friends on Sundays. She drives back to school on Monday morning. She's a good girl.
3.填空题- (共6题)
4.解答题- (共7题)
（1）如图，一束光线
射到平面镜
上，被反射到平面镜
上，又被反射，若被反射出的光线
与光线平行，且
，则
_________，
________．（2）在（1）中，若
，则_______；若
，则________；（3）由（1）、（2），请你猜想：当两平面镜
、的夹角________时，可以使任何射到平面镜上的光线，经过平面镜、的两次反射后，入射光线与反射光线平行．请说明理由．
，求xy的值。
;
;
;
②（m﹣2n+3）（m+2n﹣3）
;②a2·a4+(a2)3
图1 图2 图3
(1)探究一：三角形的一个内角与另两个内角的平分线所夹的角之间的关系
已知：如图1，在△ADC中，DP、CP分别平分∠ADC和∠ACD，
试探究∠P与∠A的数量关系，并说明理由．
(2)探究二：四边形的两个个内角与另两个内角的平分线所夹的角之间的关系
已知：如图2，在四边形ABCD中，DP、CP分别平分∠ADC和∠BCD，
试探究∠P与∠A＋∠B的数量关系，并说明理由．
(3)探究三：六边形的四个内角与另两个内角的平分线所夹的角之间的关系
已知：如图3，在六边形ABCDEF中，DP、CP分别平分∠EDC和∠BCD，
请直接写出∠P与∠A＋∠B＋∠E＋∠F的数量关系：__ __ __．
-
【1】题量占比
单选题:(4道)
选择题:(14道)
填空题:(6道)
解答题:(7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：0
7星难题：0
8星难题：3
9星难题：14