同学你好，该知识点来自沪江网校《Hitalk流利生活口语1v6精品超小班【150次卡】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学下午好，很高兴为解答。
1 We are hard to avoid getting sick in our life,because of life and work pressure,environment and personal factors.
中间because of前的逗号去掉，连成一句话。
2 I have a sore throat,I should drink more water and take medicine”,”
细节问题，双引号，前引号被同学丢掉了。
3 When doctor ask you”what have you come in for today?”You can say” I'm feeling ill, I've got quite a bad cough, but I do seem to have a fever.”
主语doctor ，谓语用asks ，同时医生前面应该加定冠词the，修饰医生。
逻辑上，“我感觉不舒服，我咳嗽很严重，”与“我似乎要发烧”之间应当是顺承关系，所以把but改为 and。
4 then the doctor can give you some advice and give you medicine at the same time.
开头要大写。
给建议和药，表达为 give you some advice and medicine就可以啦，比较简洁。
5 Keep healthy is very important
要用keeping，动词原形不能直接做主语，要用动名词。

祝天天向上！