《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. 某工厂准备在劳动节期间组织员工观看最新电影,票价为每张 40 元,经车间主任沟通,针对 40 人以上的团体票,售票员提供了两种优惠方案：
方案一：全体人员打 8 折；
方案二：5 人免票,其他人员打 9 折.
(1)若工厂车间有 50 名工人,选择哪种方案更优惠？
(2)车间主任说：“无论选择哪种方案,要付的钱都一样多.”则该工厂车间有多少名工人？

答案： 5.
(1)
∵方案一:全体人员打 8 折,
∴方案一的花费为 $ 50×40×0.8 = 1600 $(元).
∵方案二:5 人免票,其他人员打 9 折,
∴方案二的花费为 $ (50 - 5)×40×0.9 = 1620 $(元).
因为 $ 1600 ＜ 1620 $,所以选择方案一更优惠.
(2)设该工厂车间有 $ x $ 名工人,
$ 40x·0.8 = (x - 5)×40×0.9 $,解得 $ x = 45 $.
故该工厂车间有 45 名工人.

一 阅读还原(有一项多余)
There are many kinds of food in China, such as noodles, rice... But my favourite is jiaozi.
Most people in China like jiaozi. 1 For example, we have jiaozi with eggs and vegetables. We also have jiaozi with meat. And I like jiaozi with vegetables best. All kinds of jiaozi are very delicious.
2 We are happy to sit and talk with each other when we make jiaozi. 3 So we also buy jiaozi in the shop. After making jiaozi, we often eat them with some vinegar(醋) or red chili oil(辣椒油). 4
Chinese New Year is an important day. On that day, Chinese people often put a coin(硬币) into jiaozi. If someone gets it, it's believed(被相信) that he or she will be lucky this year.
5 If you do, you can come to my house! My mum is good at making jiaozi.
A. Jiaozi is good for us.
B. Do you want to eat jiaozi?
C. There are different kinds of jiaozi.
D. And it's also nice to eat jiaozi with soup.
E. But sometimes we don't have time to make jiaozi.
F. Chinese people often make jiaozi at home with their families.
1. 2. 3. 4. 5.

答案： 1. C 2. F 3. E 4. D 5. B

二 短文填空
A healthy diet with exercise will help you look better, feel better and live longer. But I am sad to say that many children have unhealthy 1 (lifestyle). They eat much fast 2 (food) like French fries and fried chicken. However, too 3 fast food is not good. If you 4 (would) like to live a long and healthy life, you have to look after your living habits. It's 5 (important) to get a yearly physical examination too. You don't hope to hear 6 (some) bad news, but the doctor will tell you 7 (how) healthy you are. It's also a 8 (good) idea for you to read a book on healthy eating. From the book, you may find some useful tips on how 9 eat healthily.
I am in good 10 (healthy) now. People tell me that I look so young. Healthy eating helps me keep fit and it will also help you!
1. 2. 3. 4. 5.
6. 7. 8. 9. 10.

答案： 【文章大意】本文主要介绍了健康饮食对身体健康的重要性。
1. lifestyles 2. food 3. much 4. would
5. important 6. any 7. how 8. good 9. to
10. health