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1、談談被動語態(tài)的用法 英語中及物動詞有兩種語態(tài)，即主動語態(tài)和被動語態(tài)。主動語態(tài)表示主語是動作的執(zhí)行者被動語態(tài)表示主語是動作的承受者。被動語態(tài)由“助動詞be+及物動詞的過去分詞”構成。助動詞be有人稱、時態(tài)和數的變化?！ ?.一般現在時的被動語態(tài)構成：is/am/are+及物動詞的過去分詞 Ourclassroomiscleanedeveryday. Iamaskedtostudyhard. Knivesareusedforcuttingthings. 2.一般過去時的被動語態(tài)構成：was/were+及物動詞的過去分詞 An
2、ewshopwasbuiltlastyear. Dinosaureggswerelaidlonglongago. 3.現在完成時的被動語態(tài)構成：has/have+been+及物動詞的過去分詞 Thisbookhasbeentranslatedintomanylanguages. Manyman-madesatelliteshavebeensentupintospacebymanycountries. 4.一般將來時的被動語態(tài)構成：will+be+及物動詞的過去分詞 Anewhospitalwillbebuiltinour
3、city. Manymoretreeswillbeplantednextyear. 5.含有情態(tài)動詞的被動語態(tài)構成：情態(tài)動詞+be+及物動詞的過去分詞 Youngtreesmustbewateredoften. Yourmistakesshouldbecorrectedrightnow. Thedoormaybelockedinside. Yourhomeworkcanbehandedintomorrow. 6.現在進行時的被動語態(tài)構成：am/is/are+being+及物動詞的過去分詞 UncleWangismen
4、dingmybikenow.→ MybikeisbeingrepairedbyTomnow. Theyareplantingtreesoverthere.→ Treesarebeingplantedovertherebythem. 7.不定式的被動語態(tài)：to+be+及物動詞的過去分詞 Therearetwobookstoberead.→ Therearetwentymoretreestobeplanted. 把主動語態(tài)改為被動語態(tài)非常簡單，可以遵循以下幾個步驟： 1.先找出謂語動詞； 2.再找出謂語動詞后的賓語；
5、 3.把賓語用作被動語態(tài)中的主語； 4.注意人稱、時態(tài)和數的變化?！ ±?. Brucewritesalettereveryweek.→AletteriswrittenbyBruceeveryweek. 2. LiLeimendedthebrokenbikethismorning.→ThebrokenbikewasmendedbyLiLeithismorning. 3.Hehaswrittentwonovelssofar.→Twonovelshavebeenwrittenbyhimsofar. 4.Theywillplan
6、ttentreestomorrow.→Tentreeswillbeplantedbythemtomorrow. 5.Lucyiswritingaletternow.→AletterisbeingwrittenbyLucynow. 6.Youmustlockthedoorwhenyouleave.→thedoormustbelockedwhenyouleave. 1.不及物動詞無被動語態(tài)?！ hatwillhappenin100years. Thedinosaursdisappearedabout65millionyears
7、ago. 2.有些動詞用主動形式表示被動意義?！ hispenwriteswell. Thisnewbooksellswell. 3.感官動詞或使役動詞使用省略to的動詞不定式，主動語態(tài)中不帶to，但變?yōu)楸粍诱Z態(tài)時，須加上to. 例：makesomebodydosomething→somebody+be+madetodosomething seesomebodydosomething→somebody+be+seentodosomething Agirlsawmywalletdropwhenshepassedby.→M
8、ywalletwasseentodropbyagirlwhenshepassedby. Thebossmadethelittleboydoheavywork.→Thelittleboywasmadetodoheavyworkbyth
