人教新课标英语必修二Unit 4 Wildlife protection现在进行时被动语态 （学案）

课题名称 必修2 Unit4 现在进行时被动语态复习
教学目标 1. 复习“一般现在进行时”的基本结构。2. 复习“现在进行时被动语态”的概念，结构，运用及其注意点。
教学重点教学难点 掌握“一般现在进行时”中人称和be动词的一直性掌握将“一般现在进行时（主动语态）”转变为“现在进行时被动语态”。掌握“现在进行时被动语态”的各句式之间的转换，肯定句---否定句---一般疑问句---特殊疑问句。
教学过程 Step 1: 回顾旧知。一、听写必修2 Unit 3重要词汇和词组二、练习现在完成时被动语态的习题 Step 2:讲解“现在进行时被动语态”(The Present Continuous Passive Voice)一、找出下列句子中的“时态语态”结构。 1. We are being killed for the wool beneath our stomachs. 2. Our fur is being used to make sweaters for people like you. 3. I wonder what is being done to help you. 4. So good things are being done here to save local wildlife.概括： 因为are/is being表示 时态，being killed/used/done表示 语态， 所以are/is being killed/used/done表示 （时态，语态） Key: 现在进行 被动 现在进行时的被动语态 二、The Present Continuous Passive Voice意义：表示“某人/事此时此刻正在被……”, 主语是动作的承受者。基本形式（肯定句形式）：am/is/are (not) + being + V-过去分词3. 其他形式： 否定句形式：am/is/are ＋ not ＋ being＋过去分词。 一般疑问句形式: Am/Is/Are ＋主语＋being＋过去分词？ 特殊疑问句的形式: 特殊疑问词 + am/is/are ＋主语＋being＋过去分词？练习：根据句意，补充句子。I around their school. （show） 有人正带我参观他们的学校。I am . （follow） （现在）我没有被人跟踪。He personal questions by the teachers. (ask) 老师正在问他一些私人问题。The panda taken photos of. 有人（正）在为熊猫拍照。The rhino is . (study) （现在）犀牛没有被进行研究。 she in No. 1 Hospital. 她在第一医院接受治疗吗？ the room ? (paint) 房间（正）在粉刷吗？They waiting at station. (keep) 他们只能在车站等。Whales and therefore they are in danger of dying out. (kill) 鲸鱼正遭受捕杀，因此陷于绝种的危险。 (10) The African elephants protected. 非洲大象没有得到保护。 (11) Some animals well enough. 有些动物没有被很好地保护。 (12) the wounded people given first aid? 受伤者正得到急救吗？ (13) children being good care of ? （take）孩子们（正）受到很好的照顾吗？ (14) bridges built in the village? 村庄里有多少座桥正在被建造？Key: 1.am being shown 2.not being followed 3.is being asked 4.is being 5.not being studied 6.Is being treated 7.Is being painted 8.are being kept 9.are being killed 10.are not being 11. are not being protected 12.Are being 13.Are taken 14. How many are being 4. 现在进行时被动语态的用法 (1) 表现正在进行或发生的被动动作，常与now, look等词连用。 She is being by the doctor now. (examine) examined (2) 表示现阶段或目前这段时间正在进行的被动动作，但这一被动动作在此时此刻不一定正在发生。 A new factory is being . (build) built They are being English at present . (teach) taught Many interesting experiments are being these days. (carry out) carried out　(3) 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。 Some rock music is being by them next. (play ) played下面将由他们演奏一些摇滚音乐。 An party is being tonight. (hold) held 今晚将要举办一场晚会。 (4) 有些动词进行时的主动形式就可以表示被动的意思,常见的这些动词有:print, cook, fry, bake, burn, hang. The house is . (burn) burning房子(被)燃烧着。 The meat is . (cook) cooking 肉正在（被）煮。 (5) 在be + under / in/on +n. 的结构可以表示现在进行时的被动语态的含义。 The problem is under now.= The problem is being now.（discuss）discussion discussed The telephone is in .= The telephone is being . （use）use used Many new cars are on . = Many new cars are being . (show) show showed (6) 有些表“状态,心理活动,情感”等的动词, 常用一般现在时的被动语态表示“正在进行”。 You are on the phone. (want) wanted 有人打电话找你 MP3 is becoming more and more popular. In other words, it is loved by more and more people. (7) 表示一种经常性或习惯性的被动行为，常与always, forever, continually, constantly等词连用， 往往带有赞扬、责备、厌烦及埋怨等感彩。 Tom is always being praised by the teacher. （翻译） (8) 与情态动词连用，表示对现在正在发生的被动行为的推测。 John is not here. He must be . (interview) being interviewed John不在，他现在肯定在被访问。 ---Do you know what Mr. Smith is doing ? ---He is ill. He may be being examined by the doctor. (9) 助动词am/ is/ are和being缺一不可并且不可以颠倒顺序 现在进行时的被动语态，表示说话时正在进行一个被动的动作，如果我们把being漏掉，即成为一般 现在时的被动语态或系表结构。 The report is being written by one of the best students. 报告正由一名最好的学生写着呢。 The report is well written. 这个报告写得很好。（系表结构）【注意】被动结构的形式为“助动词+过去分词”。其结构形式的变化在be上。我们可以从be主动语态的不同形式推断出被动语态的相对应的时态。 (10) 短语动词变被动语态时，不能漏掉介词。 Look! The children are being taken care of by their aunt! 瞧！孩子们正由他们的姑妈照看着。 5. 主动语态变被动语态 “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. →How many parks are being built?练习：翻译以及句型转换。①这辆小汽车正在被设计。（design）The car __________ ________ _________. （否定句） （一般疑问句） （对the car进行提问，变为特殊疑问句）② 我的小汽车正在被修理。（repair） My car __________ ________ _________. （否定句） （一般疑问句） （对my car进行提问，变为特殊疑问句）③10个有趣的实验正在被进行。 （carry out） Ten interesting experiments __________ ________ _________ _________. （否定句） （一般疑问句） （对ten进行提问，变为特殊疑问句） ④手机正被越来越多的青少年使用 Mobile phones __________ ________ _________ by more and more teenagers. （否定句） （一般疑问句） （改为主动语态）⑤这些房间正在被粉刷。 These houses __________ ________ _________. （否定句） （一般疑问句） （对these houses进行提问，变为特殊疑问句）Step 3总结概括不同时态的被动语态 一般现在时 被动语态一般过去时被动语态一般将来时被动语态现在完成时被动语态现在进行时被动语态do write 一般现在时 被动语态一般过去时被动语态一般将来时被动语态现在完成时被动语态现在进行时被动语态doam/is/are donewas/were donewill be donehas/have been doneam/is/are being donewriteam/is/are writtenwas/were written will be writtenhas/have beenwrittenam/is/are being written