被动语态(一般过去式和一般现在时).ppt

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1、light bulbThomas Edisoni n 1 8 7 9r a d i oMarconi1 8 9 5The first airplaneWilbur and Orville Wright1 9 0 31 8 8 51 9 2 61 8 7 6His brother washes bowls every day.主主谓谓宾宾(受动者受动者)Bowls are washedby his brother every day.改为被动语态Football is played by them on Sunday.The homework is done by Lucy in the eve

2、ning.Computers are often used by them in class.These machines are made in Beilun.English is spoken as the first language in UK.1.They make shoes in that factory.主语主语+及物动词及物动词+宾语宾语Shoes are made (by them) in that factory.一般现在时：一般现在时：S(主语）主语）+am/is /are +过去分词过去分词He looked after the little baby yesterd

3、ay.主谓宾(受动者)The little baby was looked afterbyhim yesterday . They built the tall building last year. He took good care of his little brother yesterday. We cleaned our classroom just now. They used this room for resting. They planted many trees years ago.The tall building was built by them last year.His little brother was taken good care of by him yesterday.Our classroom was cleaned by us just now.This room was used for resting by them.Many trees were planted by them years ago.2. They bought ten computers last term Ten computers were bought (by them) last term.一般过去时：一般过去时：S+was/were +过去分词过去分词