精选优质文档-倾情为你奉上高一英语必修一1-5单元知识点Unit 1 Friendship1. be good to 对友好 be good for 对有益；be bad to/be bad for2. add up 加起来 增加add up to 合计，总计add to 把加到 3. notuntil/till 意思是“直到才”4. get sth/sb done 使完成/使某人被5. calm down平静下来6. be concerned about 关心 关注7. 当while, when, before, after 等引导的时间状语从句中的主语与主句的主语一致时，可将从句中的主语和be动词省去。While walking the dog, you were careless and it got loose. 8. cheat in the exam 考试作弊9. go through 经历；度过；获准，通过10. hide away 躲藏；隐藏11. se
