精选优质文档-倾情为你奉上七年级英语下册复习一同义词替换1. join =be a member of，意思是“参加、加入”某一组织或团体。2. am good at + 动词 -ing = do well in + 动词ing;is good at + 动词-ing = does well in + 动词ing;are good at + 动词 -ing = do well in + 动词ing;3. after school = after class:放学后；4. free = have time = not busy:空闲的、有空的；free = neednt pay for it = do not need money 免费的；5. busy = dont have time = not free:繁忙的；6. interesting = fun = not boring:有趣的；7. on the weekend = on weekends = on Saturdays and Sundays:在周末；
