Unit 1 The changing world Topic 1 Section D. Teaching and learning aims and demands.1、New words and phrases.leisure/ /_, _hide/ /_, _hide and seek/ /_, _chess/ /_, _radio/ /_, _spare/ /_, _recent/ /_, _abroad/ /_, _2、Useful expressions.Since the reform and opening-up, Chinese people have had more time to spend on various kinds of leisure activities. Teaching and learning difficulties.1、Present Perfect.2、List and talk about leisure activities.一、自主预习1、Finish the exercises, and then translate them into Chinese.I _ _ _ Mount Huang with my parents.She _ _ _ Cuba to be a volunteer.China _ _ rapidly since the reform and opening-up.It has _ _ in hosting the 2020 Olympic Games.Great changes _ _ _ there.I _ _ you for a long time._ you _ _ any other place? Yes, I have. / No, I havent.2、Translate the following phrases into English.发挥重要的作用在空闲时间花钱/时间做某事不仅而且自从改革开放以来玩捉迷藏各种各样的休闲活动有机会旅行出国旅行近些年二、合作探究1、Try to find out various kinds of leisure activities and pictures.In the past在露天看电影_放纸飞机_滚铁环_Now在家看电影_开模型飞机_滑旱冰_A：What kind of leisure activities did Chinese people do in the past?B：_.A：What kind of leisure activities do Chinese people do now?B：_.2、现在完成时的构成：助动词_/_+_.肯定I(You) _ _(run).We(You/ They) _ _.He(She/ It) _ _.否定I(You) _ _/ _ _.We(You/ They) _ _/_.He(She/ It) _ _/_ _. _疑问_I(you) _?_we(you/they) _?_he(she/it) _?简答Yes, you(I) _./ No, you(I) _.Yes, you(we/ they) _.Yes, he(she/ it) _./No, he(she/ it) _.No, you(we/they) _.三、课堂活动1、Functions.(Have a translation competition).There _ the bell. _._ wonderful experience! _.To help others _ us happy. _._ I had no time to travel, I _ felt very happy. _.I think it is important to remember the past, live _ the present and dream _ the future. _.2、Skim the short passage, and finish 1b.3、Ss ask and answer the three questions.4、Read the passage.四、拓展提升1、Since the reform and opening-up, Chinese people have had more time to spend on various kinds of leisure activities.注意since引导的时间状语或时间状语从句，主句使用_时态，主句中的动词是_动词。e.g. He _(be) a teacher since he _(leave) the university.2、归纳现在完成时第一种用法中适用的时间状语。_已经_曾经_从不_以前_刚刚等。翻译：李平已经完成了家庭作业。_迈克曾经去过美国。_与一般过去时态的时间状语对比：李平昨晚完成了家庭作业。_迈克去年过去美国。_五、课后检测1、Recite the short passage.2、Finish wb Exx.