《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. 计算:
(1) $ ( - 2 x ) ^ { 3 } \cdot ( - 3 x y ^ { 2 } ) $; (2) $ \left( \frac { 3 } { 4 } a b ^ { 2 } - 3 a b \right) \cdot \frac { 1 } { 3 } a b $.

答案： 5.
(1) $(-2x)^{3}\cdot (-3xy^{2})=(-8x^{3})\cdot (-3xy^{2})=24x^{4}y^{2}$.
(2) $(\frac {3}{4}ab^{2}-3ab)\cdot \frac {1}{3}ab$
$=\frac {3}{4}ab^{2}\cdot \frac {1}{3}ab-3ab\cdot \frac {1}{3}ab$
$=\frac {1}{4}a^{2}b^{3}-a^{2}b^{2}$.

When I turn on my music player and listen to the song You Raise Me Up, I always think of my mum.
1 What should I do? Should I buy her a present or cook a meal for her? These two ideas seemed both boring. I couldn't make up my mind. I wanted to give her a day off from housework, but I already had a lot of homework to do on that day. I thought about it for a long time. 2 I decided to give her a surprise. When I got up that morning, 3 Then I played the song You Raise Me Up when my mum was sitting on the sofa. My mum didn't know what happened. She was a bit surprised at first. Then, when she realized that it was I who played the song, she was moved. 4
As the song resounded(回荡) in the living room, my mum was very excited and gave me a deep hug(拥抱). 5 A simple act of love like playing a song can make my mum happy. I know what I need to do from now on—show my love.
A. At last, I chose to celebrate it in another way.
B. Mother's Day is on the second Sunday of May every year.
C. I saw something shining in her eyes.
D. This year, I wanted to do something special for my mum on Mother's Day.
E. I connected my phone to the Bluetooth speaker in our living room.
F. I suddenly realized that I was too shy to show my love.
1. 2. 3. 4. 5.

答案： 1~5 DAECF

短文填空
Hello, I am Jenny. Let 1 (I) tell you something about my brother John and me. Our parents are busy, so we need to clean our own rooms and our 2 (parent) room too. You see, this is my room and that is his room. My room is tidy, but 3 (he) is not. In my room, you can see a window, and my books 4 (be) on the bookcase and my school things are 5 my school bag. There is 6 map of China on the desk. 7 in his room, things are everywhere. Look!
Some white toy planes are under the chair. The 8 (key) are on the bed. He always 9 (ask), “Could you take my socks to me?” “Where are my 10 (photo)?” “Where is my Maths homework?” Maybe he needs a babysitter.
1. 2. 3. 4. 5.
6. 7. 8. 9. 10.

答案： 1. me 2. parents' 3. his 4. are 5. in 6. a 7. But 8. keys 9. asks 10. photos