《山西省太谷县明星镇中学九年级英语全册 Unit 3 Teenagers should be allowed to choose their own clothes含有情态动词的被动语态辅导素材 人教新目标版》由会员分享，可在线阅读，更多相关《山西省太谷县明星镇中学九年级英语全册 Unit 3 Teenagers should be allowed to choose their own clothes含有情态动词的被动语态辅导素材 人教新目标版（2页珍藏版）》请在金锄头文库上搜索。
1、含有情态动词的被动语态 温故 在英语中，动词有两种语态，即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。在八年级同学们已初步学习了被动语态，它的结构为：助动词be +及物动词的过去分词。 知新 本单元我们主要了解含有情态动词的被动语态。它的结构是什么呢？观察下面例句中含情态动词被动语态的各种形式，然后补全结论中所缺的内容。【例句】1. Many trees should be planted in the mountains. 应该在山上种许多树。2. You can take this book home. （改为被动语态）This book can b
2、e taken home (by you). 3. This problem cant be worked out very easily. 这道题轻易算不出来。4. Must the work be done at once? 这项工作必须立即完成吗？【结论】A. 含有情态动词的被动语态的结构为：情态动词+_+及物动词的_。B. 含有情态动词的主动语态变为被动语态时，要把主动语态的_变成被动语态的主语。C. 变为否定句时只需要在情态动词后加_。D. 变为一般疑问句时只需把_提到句首。Key: A. be, 过去分词 B. 宾语 C. not D. 情态动词【运用】. 选择最佳答案。( )Yo
3、ung trees should _ every year.A. be plantedB. plantedC. plant. 按要求完成下列各句，每空一词（含缩写）。1. We must do the work right now. （改为被动语态）_ _ _ _ _ right now.2. Teenagers should be allowed to go out with their friends on school nights. （改为否定句）Teenagers _ _ _ to go out with their friends on school nights.3. A book should be read each month. (改为一般疑问句)_ _ _ _ _ each month?Grammar Focus. A . 1. The work must be done 2. shouldnt be allowed3. Should a book be read
