【弯道超车】Unit 8 Pets and us 核心语法之含有情态动词的被动语态-2025年沪教版（2024）新八年级英语上册精讲精练 (含答案解析)

/ 让学习更有效 新课备课备考 | 英语学科 / 让学习更有效 新课备课备考 | 英语学科 2025年沪教版（2024）新八年级英语上册精讲精练 Unit 8 Pets and us 核心语法：含有情态动词的被动语态 一、基本结构 情态动词 + be + 及物动词的过去分词 二、常见情态动词的被动语态形式 情态动词 主动语态 被动语态 例句 can can do can be done English can be spoken here. could could do could be done The work could be done better. may may do may be done He may be asked to give a speech. might might do might be done It might be delayed by the rain. must must do must be done The law must be obeyed. should should do should be done Children should be taught to be honest. ought to ought to do ought to be done The environment ought to be protected. 三、句型转换 1. 肯定句 主语 + 情态动词 + be + 过去分词 Students must obey school rules. → School rules must be obeyed by students. 2. 否定句 主语 + 情态动词 + not + be + 过去分词 You shouldn't waste water. → Water shouldn't be wasted. 3. 一般疑问句 情态动词 + 主语 + be + 过去分词 Can we use calculators in the exam → Can calculators be used in the exam 4. 特殊疑问句 疑问词 + 情态动词 + 主语 + be + 过去分词 When should we finish the work → When should the work be finished 四、使用注意事项 1、保持be动词的原形 情态动词后的be永远用原形 正确：The work must be done. 错误：~~The work must is done.~~ 2、及物动词才有被动语态 只有及物动词才能构成被动语态 正确：The song can be sung. 错误：~~The accident was happened.~~ 3、短语动词的被动语态 动词短语要保持完整 We should take care of the elderly. → The elderly should be taken care of. 五、易错点提醒 情态动词后的be动词必须用原形 过去分词形式要正确（特别是 irregular verbs） 注意主谓一致的问题 不要遗漏介词（特别是短语动词） 1．My mother told me that my homework must _____ on time. A．finish B．be finish C．be finished D．finished 2．These books should_____ to the library on time． A．send B．be returned C．give back D．return 3．—How often do I need to feed the dog —It _____ food every day, or it will be hungry. A．must give B．must be give C．must gave D．must be given 4．Mr. Chen has a loud voice. His voice _____ clearly even in that big classroom. A．can hear B．can be heard C．heard D．was heard 5．Your bike _____ at Jim's. A．can mend B．can mended C．can be mend D．can be mended 6．No matter how many difficulties we have, I believe all the problems can _____ in the end. A．solve B．be solved C．be solving D．be to solve 7．— Must we clean the classroom now — No, you needn't. It after school. A．may clean B．must clean C．need be cleaned D．can be cleaned 8．Some of the stars _____ because they are too far away. A．can’t see B．can’t be seen C．mustn’t see D．mustn’t be seen 9．—The traffic is too heavy. We have to drive slowly. —I think more new roads _____ in our city. A．have built B．build C．should build D．should be built 10．The teacher told us that our class rules must _____. A．follow B．be follow C．be followed D．follows 11．In my opinion, every child should _____ to follow the tra ... ...