【正文】
tense and present perfect tense 教法及教具 Recorder and pictures 教 學 過 程 教 學 內(nèi) 容 個案調(diào)整 教師主導活動 學生主體活動 Step 1 Presentation some questions : 1.)Have you ever been to Beijing ? 2.)When did you go to Beijing? 3.)How many times have you been to Beijing? 4.)Have you ever bought a puter? 5.)When and where did you buy it? 6.)How many times have you used it for an online tour ? often use these time expressions with the simple past tense : yesterday , the other day , last… , … ago , just now . We ofte