(二)不知道或没必要指出动作的执行者时 Mr. Wang is invited to the meeting today.
(三)当说话人需要强调客观时 It is said that she was a beauty when she was young .
几种常用时态的被动语态的构成及其 用法
1.一般现在时的被动语态: is/am/are+及物动词的过去分词。
3. 当此动词表示事物的自然属性的时候:
•The pen __w__r_it_es___ (write) very fast. •This kind of sweater ___se_l_ls__ (sell) well.
四.几种值得注意的被动语态变化.
1 带复合宾语的被动语态结构.
(1)make sb. do sth.
sb. be made to do sth.
Mr Green made Jim do his homework at home.
Jim was made to do his homework by Mr Green at home.
•A traffic accident _h_a_p_p_e_n_ed_(happen) just now.
2. 连系动词(Link.v.) 如:be, look, seem, feel, sound, smell, taste, get, turn, become…
•Peking Opera __so_u_n_d_s__ (sound) beautiful.
They make shoes in that factory.
Shoes are made by them In that factory.
Exercises