高一英语必修1 Unit 1 FriendshipPart 1. Warming up1. 介词不同，含义有别：be good to sb./sth. 对 好 be good for sb./sth. 对 有好处be good at (doing) sth. 擅长，精通 be good with sb./sth. 善于应付 的eg. She was very good to me when I was ill.Doing morning exercises is good for health.Tim is good at speaking English.He is very good with children. 他对孩子很有一套。2. add up 合计，把加起来 add up to 合计达到add to 增加，增添 add A to B 把加进里面，把和相加eg. Please add these figures up.These figures add up to 900.The bad weather
