高一英语必修2第四单元语法

下面将唱一首民歌。
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4. be + under / in + V.可代替进行时被动语态
e.g. The bridge is under repair. The bridge is being repaired.
e.g. The telephone is in use (=is being used) now.
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e.g: 1. They are building a new library now. 被动
A new library is being built now.
2. Many animals are being protected well enough. 否定句
Many animals are not being protected well enough. 3. The bridge is being repaired now. 疑问句
(L12) 4. So good things __a_re__b_e_i_n_g_d_o_n_e___here to
save local wildlife. (L25)
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Summary: 现在进行时的被动语态
1. 构成：am/is/are (not) + being + V-过去分词 2. 意义：…正在被做.
The Olympic Games are usually held
in big cities.
2. Past passive voice: was/were+ p.p.
The last Olympic Games were held
in Athens.
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3. Future passive voice: will/shall+ be+
mosquito.
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2. 表现阶段正在进行的被动动作。
The effect of the new drug is being
studied at present by scientist.
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The habitat of the panda is being protected by the local people .
The 29th Olympic Games are to
be held in Beijing in 2008. 4. Perfect passive voice: have /has+
been + p.p. The Olympic Games have been held 28 times.
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5. Present continuous passive voice: am/is/are+ being+ p.p. --Why it is so noisy out there? --Oh, it’s because the road is being repaired.
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源自文库
1. Discover wwhhaatt ssttrruuccttuurree iiss uusseedd
Complete the sentences according to the text.
1. We __a_r_e_b_e_i_n_g_k_i_lle__d__for the wool beneath
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如果去掉being,就成为一般现在时被动语态或系表 结构。 试比较下列句子:
Look! The children are being taken care of by their aunt. 瞧!孩子们现在正由姑姑照看着。(指现在的情况)
Children are taken good care of at school. 孩子们在学校被照看得很好。(指通常的情况)
Unit 4 ---Wildlife Protection
Period 4: Grammar Present Progressive Passive Voice 现在进行时的被动语态
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The Tense of the The Passive Voice
1. Present passive voice: am/is/are + p.p.
定义：现在进行时被动语态表示说话时或
现阶段某个被动的动作正在进行。
e.g.
1. A new library is being built now.
2. Some animals are not being
protected well enough.
3. Is the bridge being repaired now?
p.p.
The 2008 Olympic Games will be
held in Beijing.
am/is/are+ going to be+ p.p.
The 29th Olympic Games are going
to be held in Beijing in 2008.
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am/is/are+ to be+ p.p.
our stomachs. (Line 9)
2. Our fur __is__b_e_in_g__u_s_e_d__to make sweaters
for people like you. (L10)
3. I wonder what __is__b_e_in_g__d_o_n_e__to help you.
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The habitat of the panda is being protected by the local people .
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3. 少数及物动词的进行时表示按计划、 安排将要承受某个动作。
An party is being held tonight. 今晚将要举办一场晚会。
A folk song is being sung next.
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现在进行时的被动语态基本用法： 1.表示现在正在进行的被动动作。 eg:
Mary is being interviewed now.
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Some cultural relics are being appreciated by experts.
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He __is__b_e_in_g__b_it_te_n__(bite) by a