精选优质文档-倾情为你奉上Unit 2 How often do you exercise一、必背短语。1.去看电影go to the movies2.多久一次how often3.几乎从不hardly ever4.在周末on the weekend/on weekends5.一周一次once a week6.一周两次twice a week7.一个月三次three times a month8.使用互联网use the internet9.充满be full of10.上钢琴课have piano lessons11.不得不做某事have to do sth.12.帮助做家务help with housework13.至少at least14.至多at most15.保持健康keep healthy/keep in good health16.的结果the result of17.百分之二十twenty percent18.