Unit 7 -Unit9单元语法导学案2024-2025学年人教版英语九年级全册

Unit 7 Teenagers should be allowed to choose their own clothes.单元语法 语法学习：含有情态动词的被动语态 【语法精讲】 1. 含义及用法 含有情态动词的被动语态说明某个被动性动作所反映出的感情和态度。常用于被动语态的情态动词有 can, may, must, need, should 等，分别表示“能够被……，可以被……，必须被……，应该被……”等。 2. 转变方法 (1)将主动语态的宾语变成被动语态的主语。 主动语态：You can take this book home. 主语 谓语 宾语 被动语态：This book can be taken home (by you). 主语 谓语 动作的执行者 (2)将含情态动词的主动句式变成被动句式，即：“情态动词+动词原形”变成“情态动词+ be+过去分词”，然后再在其后加“by+主动句中的主语（人称代词用宾格）”。by短语也可省略。 You should finish your homework at once. →Your homework should be finished (by you) at once. You can take this book home. →This book can be taken home (by you). 3. 句式变换 含情态动词的疑问句、否定句的变化均需借助于情态动词完成。 (1)否定句 在情态动词后面加上not或never即可，但must表“必要”时否定式为needn’t。 This work needn’t be done at once. 这项工作没必要立即做。 This problem can’t be worked out very easily. 这道试题不能轻而易举地算出来。 (2)一般疑问句 直接将被动语态的陈述句中的情态动词提前。 Should your homework be finished before six? 你的家庭作业应在六点前完成吗？ (3)特殊疑问句由特殊疑问词加上被动语态的一般疑问句构成。 When must this work be done? 这项工作必须在什么时候完成？ (4)反意疑问句 This bridge can be built next year, can’t it? 这座桥明年能建成，是吗？ This book shouldn’t be taken out of the library, should it? 这本书不应被带出图书馆，是吗？ 4. 温馨提示 (1)回答应保留原情态动词，但must表“必须”时，其否定回答应用needn’t, need表“必要”时，其肯定回答应用must。 —Should the work be finished today? ——工作应在今天完成吗？ —Yes, it should. / No, it shouldn’t. ——是的，应在今天完成。/不，不应在今天完成。 —Must the classroom be cleaned now? ——现在必须打扫教室吗？ —Yes, it must. / No, it needn’t. ——是的，必须打扫。/不，不必要。 (2)不用被动语态的情况： ①不及物动词没有被动语态。如：belong, happen, take place, last, come true, remain, succeed, fall, die, arrive, break out, appear, last, start 等。 ②表示静态的及物动词不用被动语态。如：have, fit ③祈使句一般没有被动语态。如：Look at the blackboard, please. ④系动词没有被动语态和进行时态。如：The fish tastes good. ⑤反身代词在句中作宾语时，不能用被动语态。如：You must look after yourself. ⑥某些动词形式是主动，但含有被动的意思。 如：这书很好卖。The book sells well. 这块表需要修理一下。The watch needs mending. 【随堂检测】 一、单项选择 1. —The children __________ to follow the rules from a young age. —I agree. A. educated B. educate C. should educated D. should be educated 2. The teenagers __________ to choose their own clothes. A. allow B. allowed C. are allowing D. should be allowed 3. To make our city more beautiful, rubbish __________ into the river. A. needn’t be thrown B. mustn’t be thrown C. can’t throw D. may not throw 4. You should get your shoes __________. A. washed B. wash C. washing 5. —Must our work be done today? —No, __________. A. it needn’t B. it mustn’t C. it must 二、句型转换 6. Nobody can answer the question. (改为同义句) The question __________ __________ answered by anybody. 7. We should clean our teeth twice a day. (改为被动语态) Our teeth should __________ __________ twice a day. 8. Can you take good care of the children? (改为被动语态) __________ the children __________ __________ good care of? 9. The classroom must be cleaned after school. (对画线部分提问) __________ __________ the classroom __________ __________? 10. We must wash our hands before meals. (改为被动语态) Our hands __________ __________ __________ before meals. 参考答案 一、单项选择 1. D 2. D 3. B 4. A 5. A 二、句型转换 6. can’t be 7. be cleaned 8. Can, be taken 9. When must, be cleaned 10. must be washed Unit 8 It must belong to Carla.-单元语法 情态动词表示推测 【语法精讲】 can, could, may, might, must 皆可表示推测，其用法如下： 构成 含义 例句 情态动词+动词原形 表示对现在或将来情况的推测，此时动词通常为系动词 I don’t know where she is. She may be in Wuhan.我不知道她在哪里，也许在武汉。 情态动词+动词现在进 行时 表对现在或将来正在进行的情况进行推测 At this moment, our teacher must be correcting our exam papers.这时，我们的老师想必在批改试卷。 情态动词+动词完成时 表示对过去情况的推测 The road is wet. It must have rained last night.马路是湿的，昨天晚上一定下雨了。 情态动词+ 动词的现在 完成进行时 表示对过去正在发生事情的推测 Your mother must have been looking for you.你妈妈一定一直在找你。 温馨提示： 1.推测的否定形式，用can’t。（mustn’t表示禁止，不表示推测） 2. could, might表示推测时不表示时态，其推测的程度不如can, may。 3. 表示推测时must只用于肯定句; can 一般用于疑问句或否定句。 4. 在反意疑问句中，当附属部分含有表示推测意义的 must时，疑问部分的助动词应与must后面的动词在非推测情况下的用法保持一致。 【随堂检测】 一、根据句意，选择正确的情态动词填空。 1. You __________ （can/must） be tired after working for a long time without a rest. 2. —Who is the woman over there? Is she Mrs. Smith? —It __________ （may/can’t） be her. She is much taller. 3. —Where’s Zhang Lei? —I’m not sure. He __________ （could/must） be in the laboratory. 4. —What will the weather be like tomorrow? —It __________ （must/might） be windy or rainy. I’m not sure. 5. Alice __________ （must/can’t） be working now, because the light in her room is still on. 二、单项选择 6. —Lucy is walking the dog in the park. —She __________ be. Listen! She is singing loudly in her room. A. can’t B. mustn’t C. needn’t 7. —Is the man over there Adam? —It __________ be him. He has gone to Hong Kong on vacation. A. must B. can’t C. mustn’t 8. She __________ be slow, but at least she doesn’t make stupid mistakes. A. needn’t B. may C. can’t 9. —Look! The woman at the school gate __________ be our headmaster. —No, it __________ be her. She is holding a meeting in the office now. A. must; can’t B. must; mustn’t C. can; needn’t 10. —Look at the man standing at the school gate. Is he your math teacher Mr. Brown? —No, it __________ be him. He has gone to Chengdu on business. A. can’t B. may not C. mustn’t 三、句型转换 11. His father must be at home at the moment.（改为否定句） His father __________ __________ at home at the moment. 12. The animal could be a wolf.（对画线部分提问） What __________ the animal __________? 13. Maybe the hair band belongs to Alice.（改为同义句） The hair band may __________ __________. 14. He must be a worker.（给出附加问句） He must be a worker， __________ __________? 15. They might be staying at home now.（对画线部分提问） __________ __________ they __________ __________ now? 参考答案 一、根据句意,选择正确的情态动词填空。 1. must 2. can’t 3. could 4. might 5. must 二、单项选择 6. A 7. B 8. B 9. A 10. A 三、句型转换 11. can’t be 12. could; be 13. be Alice’s 14. isn’t he 15. What might; be doing Unit 9 I like music that I can dance to.-单元语法 由关系代词引导的定语从句 【语法精讲】 一、在复合句中，修饰某一名词或代词的从句叫作定语从句。定语从句所修饰的词叫作先行词。定语从句一般放在先行词的后面。引导定语从句的词叫作关系代词（that, which, who,宾格whom，所有格whose）或关系副词（when, where等），关系代词和关系副词一般放在先行词与定语从句之间，起联系的作用，同时又作定语从句的一个成分。 例如: I like music that I can dance to. （先行词）（关系代词）（定语从句） 二、本单元主要学习由关系代词that, which, who引导的定语从句。 关系代词 例句 that 在从句中作主语或宾语 指物 He is doing something that makes me happy.（作主语） I like music that I can sing along with. （作宾语） 指人 Who is the person that is standing under the tree?（作主语） The boy that we saw yesterday is my cousin. （作宾语） which 在从句中作主语或宾语 指物 Hangzhou is a city which has a beautiful lake.（作主语） The story which he told was very funny. （作宾语） who, whom 在从句中分别作主语和宾语 指人 I prefer singers who write their own music.（作主语） The man whom you asked is our headmaster.（作宾语） 【温馨提示】that和which的用法区别口诀： that, which可互换，下列情况要照办。 不定代词用that，指人指物都不错。 先行词前被限制，千万不要用which。 要用which别着急，介词提前逗隔离。 【随堂检测】 单项选择 1. I always love dogs __________ are intelligent. A. who B. which C. what 2. The comedy __________ Chaplin played is still popular today. A. who B. what C. that 3. I like to spend time with those __________ are full of humour. A. who B. which C. whom 4. I can’t stand the food __________ is too spicy. A. what B. where C. which 5. He __________ laughs last laughs best. A. who B. which C. whom 参考答案 单项选择 1.B 2.C 3. A 4.C 5. A 学科网（北京）股份有限公司 $$