Unit2WildlifeProtectionDiscoveringUsefulStructure課件-人教版高中英語

Unit2DiscoveringUsefulStructuresThePresentContinuousPassiveVoiceWhataretheydoinginthepicture?Thepolarbear

.Thepanda

bamboo.Theelephant

sports.isswimmingisdoingiseating現(xiàn)在進行時的構成:

_______________________________________________be(am/is/are)doingThewhales__________(kill)byhumanbeings.werekilledTherhino/?ra?n??/____________(hunt)bysomeone.

washuntedReview:thepassivevoice被動語態(tài)的基本構成:

_________________be+V.ed(過去分詞)（時態(tài)和語態(tài)結合，先體現(xiàn)時態(tài)，后體現(xiàn)語態(tài)）現(xiàn)在進行時：am/is/are+V-ing被動語態(tài)：

be+done(V過去分詞)現(xiàn)在進行時的被動語態(tài)：主語+

am/is/are+being+done+(by…)表進行表被動現(xiàn)在進行時的被動語態(tài)

結構

(3)Whatmeasuresarebeingtakentohelpthem?(2)Whatisbeingdonetohelpthem?(1)Africanelephantsarebeinghunted.Underlinethepresentcontinuouspassivevoiceinthesentencesanddiscussitsfunction.定義：表示“某人/事此時此刻正在被…”，主語是動作的承受者,表示說話時或現(xiàn)階段某個被動的動作正在進行。Function:describeactionsthatarehappeningatthepresentmoment1.Theplan___________________thismonth.計劃本月正在執(zhí)行。2.Yourcomputer__________________now.現(xiàn)在沒人修理你的電腦。3.___thesefields_______________thisweek？這周有人在給這些地澆水嗎？4.Where___you______________________now？現(xiàn)在你們在哪里接受面試？isbeingcarriedoutisnotbeingrepairedArebeingwateredarebeinginterviewed肯定形式：am/is/are＋being＋過去分詞否定形式:am/is/are＋not＋being＋過去分詞疑問形式:Am/Is/Are＋主語＋being＋過去分詞？特殊疑問句的形式:把特殊疑問詞放在一般疑問句前面?，F(xiàn)在進行時的被動語態(tài)的構成Basicusage基本用法1.

表示說話時正在進行的被動動作，句中常用now,

rightnow,

look,atpresent,atthemoment等時間狀語連用。He

(examine)

bythedoctornow.Look!Thechildren

(care)

ofbytheiraunt.看!孩子們正由他們姑媽照顧。她現(xiàn)在正在接受醫(yī)生的檢查。isbeingexaminedarebeingcared

2.表示現(xiàn)階段正在進行的被動動作(說話時不一定在進行),句中常用atpresent,thesedays等時間狀語。Theproblemoffoodsafety_______________(study)byscientiststhesedays.is

being

studied3.表示一種習慣的被動行為(often,always,frequently,constantly),帶有贊揚、羨慕、抱怨，討厭等感情色彩。Childrenofourneighbors___always

____________(praise)byourparents.are

beingpraisedChoosethesuitableverbformstocompletethesentences.1.I’m(working/beingworked)athometodaybecausemyofficeis

(painted/beingpainted).2.Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.3.Whatpartofthecityis(attacked/beingattacked)

now?4.Rightnow,thedeerare(watched/beingwatched)

overbymanyvolunteers.5.Whois(hunting/beinghunted)thekangaroos?Wherearethey

(hunted/beinghunted)?6.Itisreportedthatlivingspacesforwildlifeare(reduced/beingreduced)duetothecuttingoftrees.Inthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.Butthingshavebeguntochangeinrecentyears.Smallbirds________________(catch)withnets.Wildducks_______________(sell)atfoodmarkets.Fishandsnakes_______________(kill)forfoodinrestaurants.Andevenworse,thewetland________________(destroy).Someparts__________________(cover)withnewhouses.Youcanseerubbisheverywhere.Thewetland________________(pollute)seriouslyeveryday.Ia