英语人教版九年级全册unit5第五课时

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。
如：English is spoken by many people. 2.一般过去时的被动语态:
was/were+及物动词的过去分词 如：The bridge was built a few years ago.
Classroom is cleaned by us every day.(被动)
（二）They built a new bridge over the river. (主动)
A new bridge was built over the river. (被动)
被动语态的基本用法
（一）需要强调动作的承受者时 English is widely spoken in the world now. （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 .
Mr Green made Jim do his homework at home.
Jim was made to do his homework by Mr Green at home.
（7’）
写出下面动词的过去分词形式(3’)
1.clean3.grow5.plant7.buy9.take-
2.repair4.do6. speak8. make10. write-
主动语态变被动语态的解题步骤:
1. 找主动语态句子中的宾语 ----即动作的承受者 2. 判断宾语的单复数 ----即确定be动词的单复数. 3. 判断动词的时态 ----即确定be动词的时态. 4. 修改谓语的时态 ----即把原句动词改为过去分词 5. 修改原句的主语 ----即由by+原句的主语 .
如：The work has been done by us.
6.现在进行时的被动语态：
is/am/are being+及物动词的过去分词。 如: The work is being done by workers.
自学指导二
1.写出下面动词的过去分词(3’) 2.掌握被动变主动的步骤（3’） 3.把下面的句子变为被动语态
•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.
百度文库
Exercises
将下列句子变为被动语态：
1. They clean their classroom every day . ___T_h_e_ir_c_l_a_s_s_r_o_o_m__is__c_le_a_n__e_d_b_y__th_e_m__e_very day . 2. I repair Jenny’s bicycle every Sunday. __J_e_n_n_y_’s__b_ic_y_c_l_e_i_s_r_e_p_a_i_re_d__(_b_y_m__e_)_e_v_e_r_y Sunday. 3. This farmer grew beautiful flowers last year. B_e_a_u_t_if_u_l_f_lo_w__e_rs__w_e_r_e_g__ro_w__n_b_y__t_h_is farmer last year. 4. The students should do their homework every day . The_i_r_h_o_m_e_w__o_rk__s_h_o_u_ld_b_e__d_o_n_e_b_y__th_e__s_tu_d_e_n_t_s evey day. 5. We will plant many trees in our school.
3.含有情态动词的被动语态： 情态动词+be+及物动词的过去分词： 如: Your homework must be finished.
4.一般将来时的被动语态: will be +及物动词的过去分词 如：The building will be finished next year.
5.现在完成时的被动语态 has/have+been+ 及物动词的过去分词.
Many trees will be planted (by us) in our school.
自学指导三
1. 了解下面一些不用被动语态 的动词及被动语态几种特殊 用法。
2.认真完成堂堂清练习
不用被动语态的动词：
1. 不及物动词（vi.) 如:happen, take place, appear, dissapear, …
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.
１ 带复合宾语的被动语态结构．
（１）make sb. do sth.
sb. be made to do sth.
九年级英语unit5 第五课时 教学课件
学习目标
熟练掌握几种常用时态 的被动语态的构成及其 运用。
自学指导一
1.理解被动语态的含义（2’） 2.熟练掌握下面前四种常用时
态的被动语态的构成及其运 用（5’）
语态分类
英语动词有两种语态，主动语态和被动语态。主动语 态表示主语是动作的执行者，被动语态表示主语是动作的 承受者。如： （一）We clean the classroom every day.（主动）