新教材2020-2021学年高中英语人教必修第二册学案：Unit3Period 4 DiscoveringUsefulStructures Word版含解析

Unit3TheInternetPeriod4DiscoveringUsefulStructures学习目标1.Toanalyzetheformandfeatureofthepresentperfectpassivevoice.2.Tofindoutthedifferencesinmeaningandfunctionbetweentheactiveandpassiveforms.3.Tomasterthefunctionofthepresentperfectpassivevoiceinthecontextanduseitinrealsituations.课堂探究PartⅠObserveandanalyzeActivity1Readthepairsofsentences.Underlineandcomparethedifferentverbforms.1.Jan􀆳slifehasbeengreatlyimprovedbytheInternet.TheInternethasgreatlyimprovedJan􀆳slife.2.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.Activity2Howdoweformthepresentperfectpassivevoice?Fillintheblank.Verbform{Activehave/has+𝑣-𝑒𝑑PassivePartⅡPracticeActivity1Changethesentencesintothepresentperfectpassivevoice.Example:They􀆳vebuiltakindofnewPCwithmorefunctions.→AkindofnewPChasbeenbuiltwithmorefunctions.1.Ihavedownloadedthesoftwaretohelpmyphonebatterylastlonger.2.Someonehaslostanidentitycard.3.Haveyouconfirmed