高中英语人教版（2019） 必修第二册 Unit 2 Wildlife Protection Discovering Useful Structures课件（共26张）.pptxVIP

人教版(2019)必修第二册英语高中

Unit2WildlifeProtectionDiscoveringusefulstructures

ThePresentContinuous

PassiveVoice

一般现在时am/is/are或实义动词原型或三单+s

现在进行时am/is/aredoing

现在完成时have/hasdone

现在完成进行时have/hasbeendoing

一般过去时

过去进行时was/weredoing

过去完成时haddone

Review

thestructureoftimetense

future

一般将来时will/shallbe/do

presento

past

will/shallbedone

am/is/aredone

am/is/arebeingdone

have/hasbeendone

have/hasbeenbeingdone

was/weredone

was/werebeingdone

现在完成进行时have/hasbeendoing

一般过去时was/were或实义动词过去式过去进行时was/weredoing

Review

timetense时态passivevoice被动语态

am/is/are

或实义动词原型或三单+sam/is/aredoing

have/hasdone

过去完成时haddonehadbeendone

一般现在时

现在进行时现在完成时

present

past

一般将来时will/shallbe/do

future

DefinitionFunctions

定义作用

Task1:Observethepresentcontinouspassivevoiceanddiscussits

functions.

1.Africanelephantsarebeinghunted.

非洲大象正在被猎杀。

2.Whatisbeingdonetohelpthem?

现在正在做些什么来帮助他们呢?

3.Whatmeasuresarebeingtakentohelpthem?

现在正在采取哪些措施来帮助他们呢

DefinitionFunctions

定义作用

(1)现在进行时的被动语态，表示正在进行的被动动作发生在说话人说话时或现阶段。

(2)现在进行时的被动语态的构成：

be+being+done(过去分词);bebeingdone中的be动词应随主语做相应的变化(am/is/are)。

注意：现在进行时的被动语态中不能漏掉being.

肯定句

主语+am/is/are+beingdone

否定句

主语+am/is/are+not+beingdone

一般疑问句

Am/Is/Are+主语+beingdone?

特殊疑问句

特殊疑问词+am/is/are+主语+beingdone?

Formation形式

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。

Period3DiscoveringUsefulStructures

Reportanongoingevent

1Underlinethepresentcontinuouspassivevoice

inthesentencesanddiscussitsfunction.

Africanelephantsarebeinghunted.

Whatisbeingdonetohelpthem?

Whatmeasuresarebeingtakentohelpthem?

·

·

·

Period3DiscoveringUsefulStructures

Findmoresentenceswiththesameverbformin

thisunit.

They