look after/at/for/up/over; take care ot; speak to; put off; go with; write down
②在主动语态中省去不定式to的句型,在被动语态中要加上 (1)使役动词 make; let; have (2)感官动词 see; watch; hear; feel; notice; look at
③含双宾语的主动语态转为被动语态时,若间接宾语(人)作主语时,指物的直接宾语保持不变;若指物(直接宾语)作主语时,根据搭配在人(间接宾语)前加to/for to: bring; lend; write; tell; send; post; show; give; throw; sell for: sing; choose; find; buy; get
④作为系动词没有被动语态 look; sound; smell; taste; feel; seem; get; become; grow; turn;+adj 其中 look/tasete/grow/get/turn 作为实义动词时有被动
⑤主语是物,用主动表示被动(动词为不及物动词) open; lock; clean; wash; cut; drive; sell; read; write 其中当 sell; read; write为及物动词时有被动
⑥固定词组表示被动 (1)be worth doing sth 值得… (2)want/need/require doing (3)have sth done
⑦固定词组无被动 happen; take place; cost; remain; belong to; break out; have own