unit1Howcanwebecomegoodlearners?by介词的用法:1. 表示做某事的方法,by+名词/代词/doing,对其划线提问用howIstudyEnglishbywatchingEnglishmovies.HowdoyoustudyEnglish?2. by+交通工具,对其划线提问,用howIgotoschoolbybike.Howdoyougotoschool.3. by+时间,不迟于,在之前PleasereplytomyletterbyFriday.4. by在旁边Theteacherisstandingbythewindow.5. by在被动语态中,引出动作的执行者:ThebookiswrittenbyLuXun.workwithfriends和朋友一起学习makewordgroups制作单词卡片readthetextbook读课本asksbforhelp向某人求助studyforatest为考试做准备workwithagroup参加小组学习haveconversationsw