任务二:根据短文内容填空。
1. Jack eats three meals on time .
2. Some of Jack's eating habits are , so he asks for advice online.
3. Mr Wang tells Jack some ways to his habits.
4. Mr Wang suggests that Jack should eat a small apple or a glass of warm milk before to bed.
5. Small changes will help Jack healthy.

1. every day
2. unhealthy
3. change（或improve）
4. going
5. keep（或stay）

这是结合短文内容的阅读填空题，结合七年级所学词汇、语法规则和对应原文内容解答：
1. 此处表达Jack每天按时吃三餐，填时间状语every day；
2. 根据他上网寻求饮食建议的行为，能判断他的部分饮食习惯是不健康的，填形容词unhealthy；
3. 此处表达王先生告诉Jack一些改善/改变不良习惯的方法，填动词change/improve，符合语境要求；
4. 空前before是介词，介词后接动词需要用动名词形式，go to bed是固定搭配，所以填going；
5. 此处符合help sb. (to) do sth.的用法，keep healthy是七年级核心固定搭配，意为“保持健康”，填keep。

任务三:根据短文内容,回答下列问题。
1. What does Jack eat before bed?

2. What does Mr Wang suggest Jack eat instead of cookies before bed?

3. According to Mr Wang, what will help Jack stay healthy?

4. If you were in Jack's shoes, what small change will you make first?

1. He eats a lot of sugary cookies before bed.
2. He suggests Jack eat a little fruit like an apple or a banana instead of cookies before bed.
3. Good eating habits and enough exercise will help Jack stay healthy.
4. I will stop eating cookies before bed, and eat a small apple instead first. (答案不唯一，表述合理语法正确即可)

1. 该题属于阅读细节提取题，定位对应阅读原文内容，可直接找到Jack睡前食用的食物相关信息。
2. 该题属于阅读细节提取题，从原文王医生给出的饮食建议部分，可直接提取替代睡前饼干的推荐食物。
3. 该题属于阅读细节提取题，根据原文王医生的健康相关表述，可直接找到帮助Jack保持健康的方法。
4. 该题为开放性问答，给出符合健康逻辑、语法正确的合理回答即可。