【弯道超车】Unit 7 核心语法之含有情态动词的被动语态-2025年人教新目标版九年级全册英语精讲精练 (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年人教新目标版九年级英语上册精讲精练 Unit 7 Teenagers should be allowed to choose their own clothes 核心语法：含有情态动词的被动语态 一、核心概念 含有情态动词的被动语态 表示"某事应该/可能/必须被做"，强调动作的必要性和可能性。 结构：情态动词 + be + 及物动词的过去分词 二、基本结构 句式 结构 例句 肯定句 主语 + 情态动词 + be + 过去分词 The work must be finished today. 否定句 主语 + 情态动词 + not + be + 过去分词 The door can't be opened. 一般疑问句 情态动词 + 主语 + be + 过去分词 Must the homework be handed in today 特殊疑问句 疑问词 + 情态动词 + 主语 + be + 过去分词 When should the report be finished 三、常用情态动词的被动形式 情态动词 被动形式 例句 can can be done English can be learned easily. may may be done The meeting may be postponed. must must be done Rules must be obeyed. should should be done The problem should be solved at once. ought to ought to be done The environment ought to be protected. 四、使用场景 1、表示必要性 The sick must be taken good care of.（病人必须得到好好照顾。） These rules should be followed by everyone.（这些规则应该被每个人遵守。） 2、表示可能性 The keys might be lost.（钥匙可能丢了。） The answer can be found in the book.（答案可以在书中找到。） 3、表示建议 This problem ought to be discussed at the meeting.（这个问题应该在会议上讨论。） The old buildings should be protected.（老建筑应该被保护。） 五、主动语态变被动语态 主动句：You must finish the work today. 被动句：The work must be finished today. 转换步骤： 主动句的宾语（the work）变成被动句的主语 情态动词（must）保持不变 主动词（finish）变成"be + 过去分词"（be finished） 主动句的主语（you）变成"by + 执行者"，可省略 六、易错点分析 1、漏掉be动词 The work must finished today.（错误） The work must be finished today.（正确） 2、误用动词原形 The door should locked.（错误） The door should be locked.（正确） 3、过去分词形式错误 The letter must be write in English.（错误） The letter must be written in English.（正确） 七、记忆口诀 “情态被动很简单，情动加be加过分； must/should/can/may，后接be done记心间； 否定not加情动后，疑问情动提句前！” 1．—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 2．These books should_____ to the library on time． A．send B．be returned C．give back D．return 3．My mother told me that my homework must _____ on time. A．finish B．be finish C．be finished D．finished 4．Don’t put off today’s work for tomorrow. I mean, today’s work _____ today. A．may do B．must do C．may be done D．must be done 5．—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 6．—The horse-face skirt is popular. It puts together modernity and tradition naturally. —Yeah! It shows that traditional beauty should _____ by Chinese people today. A．value B．be valued C．valued 7．The lights must ... ...