《2025年快乐过暑假江苏凤凰科学技术出版社七年级提优版》

5. 已知有理数a,b在数轴上对应位置如图。

(1)用“＞”或“＜”填空：
①a＜0；②a + 1＞0。
(2)比较a,b,-a,-b的大小(用“＜”把它们连接起来)。
-b ＜ a ＜ -a ＜ b.
(3)化简：$|1 - b| + |a - b| - |a - 1|$。
|1 - b| + |a - b| - |a - 1|
= -(1 - b) + [-(a - b)] - [- (a - 1)]
= -1 + b - a + b + a - 1
= 2b - 2.

答案：
(1)①＜ ②＞
(2) -b ＜ a ＜ -a ＜ b.
(3) |1 - b| + |a - b| - |a - 1|
= -(1 - b) + [-(a - b)] - [- (a - 1)]
= -1 + b - a + b + a - 1
= 2b - 2.

1. His sister B glasses.
A.don’t wear
B.doesn’t wear
C.not wear
D.isn’t wear

答案： B

2. The boys in my school can play basketball, while some girls can play B piano.
A.the;/
B./;the
C./;/
D.the;the

答案： B

3. Sam is cool. He is good at C and he can also C well.
A.singing;dancing
B.sing;dancing
C.singing;dance
D.sing;dance

答案： C

4. Simon’s ______Dshort and black.
A.hair are
B.hairs is
C.hairs are
D.hair is

答案： D

5. Let her ______ you.A
A.help
B.helps
C.to help
D.helping

答案： A

6. I A Helen in my school and say hello to her.
A.meet
B.spell
C.say
D.think

答案： A

7. In the new school, I want B some new friends.
A.make
B.to make
C.making
D.makes

答案： B

8. —I hear the Smith will have a daughter next month.
—Yeah. And they want to ______ her Ann.B
A.ring
B.call
C.spell
D.speak

答案： B

二 短文填空
Hi, everyone. I am your new teacher Miss Zhou. My ttelephone number is 324635. I like green. Most of my school things are (be) green. I feel relaxed (relax) when I see this colour. Red is also my favourite colour. Swimming and running are my favourite sports (sport). Now it is autumn. I like this season(季节) very much. Tony is my new student. Let me (I) introduce him to you. He is thirteen. His English is very good (well). He can help you with this.
1. ______
2. ______
3. ______
4. ______
5. ______
6. ______
7. ______
8. ______
9. ______
10. ______

答案： 【文章大意】本文是周老师的自我介绍。1. telephone 2. are 3. relaxed 4. also 5. sports