九年级被动语态ppt课件

They should do it at once. →It should be done at once.
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（六）特殊情况 1.He made the boy work for two hours yesterday. →The boy was made to work by him for two hours yesterday. 2.Mother never lets me watch TV .→I am never let to watch TV by mother.
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时态 被动语态结构
例句
一般现 在时
一般过 去时
am are +过去分词 is
was +过去分词 were + 过去分 词
English is spoken in many countries.
This bridge was built in 1989.
情 态 动 情 态 动 词 The work must be
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③被动语态的用法：当我们不知道 谁是动作的执行者，或者没有必要 指出谁是动作的执行者，或者只需 强调动作的承受者时，要用被动语 态。
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Cats eat fish. （主动语态） 猫吃鱼。
Fish is eaten by cats. (被动语态) 鱼被猫吃。
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②被动语态的构成： 由“助动词be ＋及物动词的过去分 词”构成。 助动词be 有人称、数和时态的变化， 其变化规则与be 作为连系动词时完 全一样。
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主动语态变被动语态的方法 （1）把主动语态的宾语变为被动语 态的主语。 （2）把谓语变成被动结构（be＋过 去分词） （根据被动语态句子里的 主语的人称和数，以及原来主动语 态句子中动词的时态来决定 be 的 形式）。
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（3）把主动语态中的主语放在介词 by 之后作宾语，将主格改为宾格。 例 如 ： All the people laughed at him. → He was laughed at by all people. They make the bikes in the factory. → The bikes are made by them in the factory.
Unit5 Revision What are the shirts made of?
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2d Complete the sentences using the correct forms of the phrases in the box.
such as turn ... into send out cover with rise into put ... on
_a_r_e_l_ea_r_n_e_d_ (learn). 5.Some classic films w__e_r_e_s_h_o_w_n_ (show) at that
cinema last week. 4
语法
①英语有两种语态： 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
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2. The art of paper cutting __tu_r_n_s__ a simple thing like a piece of paper _i_n_to__ a beautiful piece of art. People often __p_u_t_ these art pieces __o_n_ the doors, windows and walls of their homes to celebrate the Spring Festival.
1.People used to _s_e_n_d_o_u__t _ sky lanterns when they were in trouble. But today, people light the lanterns and watch them _r_i_s_e_in__to__ the sky with their wishes.
the school concert last night. 3.The underground parking lot _i_s_c_lo_s_e_d_ (close)
at midnight every day. 4.There is a lot of research on how languages
3. To make Chinese clay art, the clay is shaped by hand into things _s_u_c_h__a_s_ cute children or characters from Chinese fairy tales and stories. They are thቤተ መጻሕፍቲ ባይዱn _c_o_v_er_e_d__w_i_th_ paint.
He cut down a tree. → A tree was cut
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down by him.
（五）含有情态动词的被动语态 含有 情态动词的主动句变成被动句时，由 “情态动词＋be＋过去分词” 构成
例如：We can repair this watch in two days. →This watch can be repaired in two days.
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3 Complete the sentences using the correct forms of the words in brackets.
1.Cheese _is__m_a_d_e__ (make) from milk. 2.Parents and students _w_e_r_e_i_n_v_i_te_d_ (invite) to
词
+be+过去分词 done right now.
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一般现在时：am／is／are＋done 一般过去时：was／were＋done 一般将来时：will／shall be＋done 现在进行时：
am／is／are being＋done 过去进行时：was/were being＋done 现在完成时：have/has been+ done 过去完成时：had been+done