《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. (1)请直接写出图(1)和图(2)几何体的名称:正方体、长方体;
(2)图(3)和图(4)是某些几何体的平面展开图,请判断后写出相应的几何体的名称:正四棱锥、三棱柱.

答案：
(1)由立体图形的特征可得题图
(1)和题图
(2)分别为正方体、长方体.
(2)由立体图形的展开图特征可得题图
(3)和题图
(4)相应的几何体分别为正四棱锥、三棱柱.

一 阅读与表达
We're sitting too much and it's dangerous. Most students spend over six hours sitting at school every day. But your body may get weak(虚弱的) if you sit a lot. Luckily, there are some changes you can make during the day to keep healthy.
· Walk to school
This makes you start off your mornings actively(积极地) and be ready to take on the schoolwork. If you take the bus, get off one stop earlier to take some easy exercise before 8 a. m.
· Get up and move around between classes
When you are busy with work, it's easy to forget the time. You can get up from your seat and take a walk around the classroom between classes. You can use this time to fill up(填满) your water bottle and go to the bathroom.
· Use your lunch break to move around outside
So many students study during their lunch break. You can walk outside and enjoy the nice weather. Fresh air(新鲜空气) can make you keep a clear head.
1. How long do most students spend sitting at school every day?Over six hours. /Most students spend over six hours sitting at school every day.
2. What can students do between classes?Students can get up from the seat and take a walk around the classroom. /Students can fill up the water bottle and go to the bathroom.
3. Why should students walk outside and enjoy the nice weather?
Because fresh air can make students keep a clear head.

答案： 一、【文章大意】本文主要介绍了久坐会导致一些问题，但是可以做一些改变来保持健康。
1. Over six hours. /Most students spend over six hours sitting at school every day.
2. Students can get up from the seat and take a walk around the classroom. /Students can fill up the water bottle and go to the bathroom.
3. Because fresh air can make students keep a clear head.

二 书面表达
健康源于生活,在于习惯,成于坚持。假如你是红星中学七年级一班学生李华,你们学校正在开展以“健康生活”为主题的英语演讲比赛。请你用英语写一份80词左右的演讲稿,介绍你在饮食、运动等方面的做法,以及健康生活带给你的好处(benefits)。
提示词语：eat well,sports,habits,healthy,happy
提示问题：1. What do you do to keep healthy?
2. How do your good living habits benefit you?
It's important to have a healthy lifestyle.To keep healthy, I keep a balanced diet. I try to have a glass of milk every day and eat less junk food. I eat food from different groups to get different nutrients that my body needs. Besides, taking exercise is another way for me to keep healthy. On school days, I actively take part in sports activities at school. On weekends, I usually go to parks with my family or play basketball with my friends.
I benefit a lot from these healthy living habits. I become fit and strong. It really helps me have enough energy for the whole-day study and enjoy my happy life!

答案： 二、One possible version:
It's important to have a healthy lifestyle.
To keep healthy, I keep a balanced diet. I try to have a glass of milk every day and eat less junk food. I eat food from different groups to get different nutrients that my body needs. Besides, taking exercise is another way for me to keep healthy. On school days, I actively take part in sports activities at school. On weekends, I usually go to parks with my family or play basketball with my friends.
I benefit a lot from these healthy living habits. I become fit and strong. It really helps me have enough energy for the whole-day study and enjoy my happy life!