高中英语人教版（2019) 必修第二册Unit 2 Wildlife Protection Discovering useful structures 现在进行时的被动语态课件.pptxVIP

UNIT2

WILDLIFEPROTECTION

TheDresentContinuousDassiveVoice

现在进行时的被动语态

Learningobjectives

Tolearntoknowthestructureofpresentcontinuouspassivevoice.

Tolearntousepresentcontinuouspassivevoicetodescribetheongoingevents.

Tolearntousepresentcontinuouspassivevoicetodescribetheendangeredanimalsconditionsandmeasurestakentohelp

them.

辆

达

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Warmingup

■Haveyoustillrememberedthestructureofpresentcontinuoustense?

Haveyoustillrememberedtheuseofpresentcontinuoustense?

辆

一、presentcontinuoustense现在进行时

结构：am/is/are+doing

此时此刻正在进行的动作

1.Look!Thesingerissingingabeautifulsong.

2.Wearehavingameetingintheofficenow.

辆

结构：am/is/are+doing

表示现阶段在做的动作

1.WeareobservingtheTibetanantelopesthesedays.

2.Imthinkingofthequestionthesedays.

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结构：am/is/are+doing

1.WeareseeingtheTibetanantelopesnextweek.

2.MyfriendisseeingmeoffnextTuesday.

表示即将发生的动作

thepassivevoice被动语态

结构：be+done

英语动词有两种语态：主动语态(theactivevoice)

被动语态(thepassivevoice)

辆

A.主动语态表示主语是动作的执行者。

Weplantedthetree.

B.被动语态表示主语是动作的承受者。

Thetreewasplantedbyus.

辆

presentcontinuouspassivevoice

现在进行时的被动语态

1.定义结构：be(is/am/are)+being+done

表示“某人/事此时此刻正在被…”,主语是动作的承受者，表示说话时

或现阶段某个被动的动作正在进行。

Theyarebeinghunted,illegally,fortheirvaluablefur.

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Underlinethepresentcontinuouspassivevoiceinthesentencesanddiscussitsfunction.

Africanelephantsarebeinghunted.

Whatisbeingdonetohelpthem?

Whatmeasuresarebeingtakentohelpthem?

辆

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2.主动语态变被动语态的原则

SomeoneishuntingAfricanelephant.

主语谓语宾语

Africanelephantisbeinghuntedbysomeone.谓语变被动语

(时态不变)

be+being+done+by

基本结构

(1)肯定形式：主语+be(am/is/are)+being+doneThehouseisbeingpainted.

(2)否定形式：主语+be(am/is/are)+not+being+doneThetreesarenotbeingwatered.

(3)一般疑问形式：be(Am/Is/Are)+主语+being+done?AmIbeingwatchedover?

(4)特殊疑问句形式：特殊疑问词+b