问题补充：
请根据材料内容，完成各题。
If you want to live for 100 years, you need healthy food and lots of exercise.
In the morning, you have a big and nice breakfast. A big and nice breakfast can help you start a day. For lunch and dinner, you can have rice and vegetables. ⑵Healthy people seldom eat much snacks. Sweet snacks give you energy but they’re not healthy. You can have an orange or an apple after each meal.
Except for keeping a healthy ⑴, you need lots of ⑴ too. You can do sports for 30 minutes every day. After a month, you will feel healthier. You can swim. You can run. You can play ball games. But don’t play computer games or chat with friends on the Internet for many hours every day. This is not exercise.
Get up from your chair, everyone! Change your diet and lifestyle today! You can live for 100 years. You can always feel young with right food and exercise.
【小题1】 将⑴处分别填上适当的单词。
【小题2】将⑵画线处翻译成汉语:
【小题3】 How long can we exercise every day?
【小题4】在文中找出下面句子的同义句。
You can do some exercise for half an hour every day.
【小题5】找出文中最能表达中心意思的句子。
.diet, exercise
答案：
(答案→)diet, exercise
解析：本文介绍了要想长寿的秘诀：要想活到100岁，要保持健康的饮食和经常进行锻炼。
【小题1】本句为承上启下句，上一段描述的是要保持健康的饮食，这一段讲述的是运动锻炼的重要性；故答案为diet, exercise
【小题2】seldom意为“几乎不，从来不”，为否定副词，snack为“零食”；故答案为健康的人从来不吃零食。
【小题3】根据第三段You can do sports for 30 minutes every day.可知我们每天需要锻炼半个小时；故答案为30minutes/Half an hour
【小题4】根据do some exercise for half an hour可知答案为短文第三段第二句You can do sports for 30 minutes every day.
【小题5】本文的第一段就准确概括了全文的主旨大意；故答案为If you want to live for 100 years, you need healthy food and lots of exercise.
