八下英语第一单元的重点句型主要包括以下几种：
询问健康或问题
What’s the matter with you？
What’s wrong with you？
What’s the trouble with you？
Are you OK？
Is there anything wrong with sb.？
提出建议
What should she do？
Should I take my temperature？
You should lie down and rest.
表达身体症状
I have a cold.
I caught a cold.
I have a fever.
I have a cough.
I have a stomachache.
I have a sore back.
I have a very sore throat.
I hurt my leg.
My head hurts badly.
I have a pain in my chest.
这些句型主要围绕健康问题、建议以及身体症状的表达，是八年级英语下册第一单元的重点内容。建议学生在学习时多加练习，以熟练掌握这些句型的用法。