每日一题#第10天 含有情态动词的被动语态-每日一题之2017快乐暑假高一英语人教版 Word版含解析.doc

每日一题#第10天 含有情态动词的被动语态-每日一题之2017快乐暑假高一英语人教版 Word版含解析.doc
第10天
INCLUDEPICTURE "C:\\Users\\user\\Documents\\Tencent Files\\624265238\\Image\\C2C\\5`HS]O_XHJO{8CT_E$0[3NW.jpg" \* MERGEFORMAT 含有情态动词的被动语态
重要程度：★★★★☆ 难易程度：★★★★☆
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Teenagers should _______ to choose their own clothes.
A. be allowed B. allow C. allowed D. to allow
【参考答案】A
【拓展延伸】
含有情态动词的被动语态
构成
含有情态动词的被动语态的结构为＂情态动词+助动词be+及物动词的过去分词＂情态动词指can, may, must, should等。
►The flowers should be watered.应该给花浇水了。
►Tables can be made of stone.桌子可由石头做成。
►Teenagers should be allowed to go out with their friends.青少年应该被允许和朋友外出。
句式
（1）肯定形式：主语+情态动词+be+及物动词的过去分词+by短语（by短语可省略）。
（2）否定形式：主语+情态动词+not +be+及物动词的过去分词。
（3）一般疑问句：情态动词+主语+be+及物动词的过去分词？
（4）特殊疑问句：特殊疑问词+情态动词+主语+be+及物动词的过去分词？
►Waste paper should not be thrown here. 废纸不应该被扔在这里。
►Must the trees be watered now? 这些树必须现在浇水吗？
►Should it be done by Li Ming? 这件事应该是李明干吗？
三、含有情态动词的主动句与被动句之间的转换
含有情态动词的主动句变为被动句时，要把主动句中的宾语变成被动句中的主语；主动句中的谓语变为＂情态动词+be+及物动词的过去分词＂；主动句中的主语变为介词by的宾语（如果不强调动作的执行者，by短语常可省略）。
1. 将下列句子改为被动语态
= 1 \* GB3 ①We must speak to the old people politely.
Must the old people _________ _________ _________politely?
= 2 \* GB3 ②Dad cleaned the car yesterday.
The car _________ _________ by Dad yesterday.
= 3 \* GB3 ③We often water these young trees.
These young trees _________ often _________ by us.
= 4 \* GB3 ④The boy broke the window yesterday.
The window _________ _________ by the boy yesterday.
= 5 \* GB3 ⑤I will give him a camera as a present.
A camera _________ _________ _________ to him by me as a present.
2. More trees must _________here.
A. be planted B.planted C. to plant D. plant
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1. 将下列句子改为被动语态
= 2 \* GB3 ②was cleaned 【解析】考查一般过去时的被动语态。其基本结构为：主语+was /were+动词的过去分词。被动语态变为主动语态，要将被动语态的宾语变为主动语态的主语，将被动语态的主语变为主动语态的宾语，注意变换时时态要保持一致。主语是单数名词The car，由yesterday可知应用一般过去时，故填was cleaned。
= 5 \* GB3 ⑤will be given 【解析】由上句中的will可知用一般将来时，本句考查一般将来时的被动语态，其基本结构为：主语+will +be+动词的过去分词。
2. A 【解析】句意：在这儿更多的树需要被种。此题考查含有情态动词的被动语态，根据句意可知选A。
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eq \o\ac(○,学) eq \o\ac(○,习) 与 eq \o\ac(○,思) eq \o\ac(○,考)
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