人教版（2019）必修第三册 Morals and Virtues Discovering Useful Structures 课件-(共33张PPT).pptxVIP

Unit2MORALSANDVIRURESDiscoveringUsefulStructures

Learningobjectives1.Identifyandunderstandthemeaningandfunctionsofthe-ingformusedastheadverbialandtheobjectcomplement.2.Usethe-ingformastheadverbialandtheobjectcomplementtodescribepeople’sactionsandexperiences.

Readthesentencesbelowanddiscussthefunctionandmeaningofeach-ingform.Lead-in1.Climbingmountainsisdangerous.subject2.Mybroyheralwayslovesplayingbasketballafterschool.object3.Hishobbyisplayinggames.predicative

4.TheladydoingthelivebroadcastiscalledQiaoBiluo.attribute5.Lookingdownatherphoneasshewalked,shehitthedoor.adverbial6.TheheadteachersawLiMingplayingwithsmartphoneintheclassroom.objectcomplement

PartOne

The–ingformastheAdverbial(动词ing用作状语)

现在分词用作状语现在分词作状语（修饰动词）时,可表时间、原因、条件、方式、伴随、让步等情况。

1.现在分词作时间状语 现在分词作时间状语时，相当于时间状语从句。可在现在分词前加连词“when,while,until”等，使其时间意义更明确。Walkinginthepark,shesawanoldfriend.分析：walk的动作是由其逻辑主语“she”发出，与句子的主语she一致，且构成主动关系，所以用动词-ing形式。＝When/while(shewas)walkinginthepark,shesawanoldfriend.

2.现在分词作原因状语 现在分词作原因状语时，可转换为由since,because或as引导的原因状语从句，这类状语多放在句子的前半部分。Beingill，hecouldntgotoschool.＝Ashewasill，hecouldntgotoschool.

3.现在分词作条件状语 现在分词作条件状语时，可转换为if,once或unless等引导的条件状语从句。Workinghard，youllmakegreatprogress.＝Ifyouworkhard，youllmakegreatprogress.

4.现在分词作让步状语 现在分词作让步状语时，相当于一个以though/although引导的让步状语从句。Workingorreading，shealwaysdidherbest.＝Whethersheworkedorread，shealwaysdidherbest.

5.作方式\伴随\结果状语 现在分词作方式、伴随和结果状语时，说明动作发生的背景和情况。作伴随状语时，表示分词的动作和主句的动作同时发生，此时它可转换成并列句。Usingastick,thepainterdrewapictureontheground.=Thepainterdrewapictureonthegroundbyusingastick.Marysatbythewindowoftheclassroom,readingabook.=Marysatbythewindowoftheclassroomandwasreadingabook.Hisparentsdied,leavinghimanorphan.＝Hisparentsdiedandlefthimanorphan.

特别提醒:1)为使动词-ing作状语所表达的时间;条件;让步等更明确,可在动词-ing形式前加