人教版新课标高中英语必修二 unit4 wildlife protection Learning about language幻灯片教学.ppt

Unit 4 Wildlife protection Learning about language;;;;3. Find the words that are related to wildlife protection.;die out extinction appreciate the importance Pay attention to wildlife protection punish the hunters in relief in peace decrease decline threaten protect … from Protection increase loss endanger hunted killed threatened do harm to … affect …;Susan is cooking dinner. ;一般现在时：am/is/are+p.p 一般过去时：was/were+p.p 现在进行时：am/is/are being+p.p 过去进行时：was/were being +p.p 现在完成时：have/has been+p.p 过去完成时：had been+p.p 一般将来时：will/shall be +p.p;Grammar; ;The?report?is?being?written?by?one?of?the?best? students.?报告正在由一个最好的学生写着。 The?report?is?well?written.?报告写得很好。 (系表结构) ;1. 肯定形式：am/is/are＋being＋过去分词 The house is being painted. 房子正在被粉刷。 2.否定形式: am/is/are＋not＋being＋过去分词 The trees are not being watered. 3.疑问形式: Am/Is/Are＋主语＋being＋过去分词？ Am I being watched over? 4.特殊疑问句的形式: 把特殊疑问词放在 一般疑问句前面。 How many bridges are being built in the village?; “三变”: 原句主语变为by短语 宾语变为主语 谓语由主动变为被动 “三不变”: 原句意思不变 原句时态不变 原句主谓宾以外成分不变。 They are building nine parks. →Nine parks are being built by them. →How many parks are being built?;现在进行时的被动语态基本用法： 表示现在正在进行的被动动作。 eg:;My car is being repaired now. ;;The habitat of the panda is being studied at present . 现在正在研究熊猫的 生活环境。 ;Rainforests?are?being?cut?and?burned?at?such?a? speed?that?they?will?disappear?from?the?earth?in? the?near?future.? 热带雨林被砍、烧得这么快, 他们将在不久的 将来从地球上消失。 Many?interesting?experiments?are?being? carried?out?these?days. 最近正在进行许多有趣的实验。 ;2. 少数及物动词的进行时表示按计划、 安排将要承受某个动作。如: An party is being held tonight. 今晚将要举办一场晚会。 A?folk?song?is?being?sung?next.? 下面将唱一首民歌。It?is?said?that?a?plane?is?being?flown?by? him?to?America?at?eight?next?Sunday? morning.? 据说下周日早上八点他将开飞机去美国。 ;3. 没有进行时的被动语态 一些表示状态、心理活动、拥有、存在等的 动词(和主动语态一样)一般不用进行时被动 语态,常用一般现在时被动语态表示此时此刻 或目前主语承