《Wildlife Protection》SectionⅣ PPT课件
现在进行时的被动语态
语法整体突破
现在进行时的被动语态是中学英语语法中的一种非常重要的英语时态,它属于现在时态。
一、含义与结构
[合作探究]
African elephants are being hunted.非洲大象正在被猎杀。
What is being done to help them? 现在可以做些什么来帮助它们呢?
What measures are being taken to help them?
现在可以采取哪些措施来帮助它们呢?
[自主发现1]
(1)现在进行时的被动语态表示说话人说话时或现阶段某事____________。
(2)现在进行时的被动语态的构成:
①be+being+done (____________);②“be being done”中的动词____________应随主语作相应的变化。
[名师提醒] 现在进行时的被动语态中不能漏掉“____________”。
二、形式
[合作探究]
We’re being killed for the wool beneath our stomachs.
我们因我们肚子底下的羊毛而正被杀害。
The tiger is not being set free at present.目前这只老虎没有被放出。
Are milu deer being sent to China from Britain? 麋鹿是从英国运到中国的吗?
What is being done for the milu deer? 现在为麋鹿正在做些什么呢?
[自主发现2]
现在进行时的被动语态的主要形式有:肯定式;否定式;疑问式。它们的具体构成如下:
(1)肯定式:主语+____________+____________
(2)否定式:主语+____________+____________+____________
(3)疑问式:________疑问式[“Am/Is/Are+(not)+主语+being done”];________疑问式[“特殊疑问词+am/is/are+(not)+being done”]。
三、用法
1.基本用法
[合作探究]
She is being examined by the doctor now.她现在正在接受医生的检查。
Look! The children are being taken care of by their aunt.
看!孩子们正由他们的姑妈照顾。
[自主发现3]
表示________正在进行或发生的被动动作,常与now, right now, at present, at the moment等时间状语词连用。
[合作探究]
A new factory is being built.一座新的工厂正在建设中。
They are being taught English at present.目前他们正在被教学英语。
[自主发现4]
表示________或________________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。
2.特殊用法
[合作探究]
The problem is under discussion now.
= The problem is being discussed now.这个问题正在讨论中。
Some rock music is being played by them next.
下面将由他们演奏一些摇滚音乐。
John is not here.He must be being interviewed.
约翰不在这里,他一定正在接受采访。
... ... ...
关键词:人教版高中英语必修二PPT课件免费下载,Wildlife Protection PPT下载,.PPT格式;