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教学课件 仁爱英语九年级上册 Unit6 语法专项 ——前缀en-+定语从句who/whom 全解精讲+分层练习 1 1.掌握前缀 en - 两种构词含义,熟记高频动词 2.区分 en - 与后缀 - en 用法关联与差异 3.分清 who、whom 在从句中充当的句子成分 4.掌握介词前置只能用 whom 的特殊规则 5.熟练完成单选、词形变换、句型合并题型 学习目标 模块一 前缀 en - 知识点导入 en - 是动词前缀,加在形容词 / 名词前生成新动词 两大核心语义:①使变得;②使陷入、颁布施行 关联旧知:后缀 - en 同样表 “使……”,可对比记忆 变形单词适配时态、被动语态,考试常结合变形考察 写作加分词汇,描述变化、政策、影响高频使用 en - 第一类含义:使…… 变得 词根多为形容词,en+adj = 使具备该特征 large enlarge 放大;rich enrich 丰富 able enable 使能够;courage encourage 鼓励 例句:Travel enriches our life. 旅行丰富我们的生活 情态、时态变化和普通动词规则完全一致 en - 第二类含义:陷入 / 颁布 词根多为名词,表带来某种处境、推行条例 danger endanger 危及;force enforce 执行 act enact 颁布(法案、新规) 语境多用于安全、法律、政策类书面表达 可用于将来时、被动语态各类句式 en - 核心词汇汇总表 原词词性 变形动词 释义 adj.large enlarge 放大,扩大 adj.rich enrich 丰富,充实 n.courage encourage 鼓励 n.danger endanger 危及,危害 n.act enact 颁布(法律) en - 拓展例句精讲 1 1.Reading can enrich our spiritual world. 译:阅读能充实我们的精神世界。 考点:can 后接 enrich 原形,表长期作用 2.Practice enables us to master new skills. 译:练习让我们掌握新技能。 固定搭配 enable sb. to do 使某人能够做 en - 拓展例句精讲 2 1.Bad habits endanger our physical health. 译:坏习惯会危害我们的身体健康。 2.The city enacts new rules to protect heroes. 译:这座城市颁布新规保护英雄事迹。 3.We enlarge photos to see the details clearly. en - 易混拓展:en- vs 后缀 - en 相同点:都有 “使变得” 的含义 区分:en - 放单词开头;-en 放单词末尾 例:rich enrich(前缀);dark darken(后缀) 写作可交替使用两种变形,提升句式丰富度 en - 专项练习 1 单项选择 1.Good teachers _ students to stick to dreams. A. encourage B. enlarge C. endanger 2.Hard work _ people to achieve their goals. A. enacts B. enables C. enriches 3.Pollution will _ the safety of wild animals. A. endanger B. enrich C. enlarge A B A en - 专项练习 2 词形变形填空 用所给词加 en 变形,变换对应时态 / 语态 1.Books _ (rich) our mind every day. 2.The law _ (enact) last year to protect culture. 3.Too much noise _ (danger) people’s sleep. 4.We have _ (large) the picture on the screen. enrich was enacted endangers enlarged en - 专项练习 3 选词填空 词库:enrich, enact, endanger, encourage 1.Schools _ students to learn from great people. 2.The government will _ new environmental laws. 3.Outdoor activities _ our daily experience. 4.Careless operation will _ public safety. encourage enact enrich endanger en - 专项练习 4 单句改错 划出错误,写出正确 en 变形单词 1.This trip rich our knowledge of history. 2.The new rule enact last month by the government. 3.Bad driving endanger all the passengers on the bus. rich enrich enact was enacted endanger endangers 模块二 定语从句 导入 先行词是人时,使用 who、whom 两个关系代词 判断标准:看单词在定语从句中做主语还是宾语 who:主语;whom:宾语,介词前置仅能用 whom 承接 Unit5 that/which,完善定语从句完整体系 题型重点:单选、两句合并、短文填空 who 与 whom 基础用法对比 1.who:从句主语,不可省略,不能放介词后 例:The man who helped me is a doctor. 2.whom:从句宾语,无介词时可换 who;介词前只用 whom 例:The hero whom we admire is Yuan Longping 介词 + whom 为考试高频易错考点 介词前置固定规则 介词(about/for/with/without)放在关系代词前 只能搭配 whom,绝对不能使用 who 例句:The scientist about whom we talked is Tu Youyou 做题技巧:看到介词提前,直接锁定 whom who/whom 例句精讲 1.The nurse who saved many lives is Nightingale. who 作从句主语,不可替换为 whom 2.The scientist whom we respect works hard. whom 作宾语,此处可替换 who 3.The writer with whom I chatted loves history. 介词 with 前置,只能用 whom 定语从句练习 1 填空 填入 who/whom,介词前置只用 whom 1.The model worker _ we meet is kind. 2.Anyone _ wants to learn can join us. 3.The hero of _ we speak saved many people. 4.The teacher _ teaches us English is great. who/whom who whom who 定语从句练习 2 单项选择 1.The researcher _ developed rice is Yuan Longping. A. who B. whom C. which 2.The doctor about _ we learned helped women. A. who B. whom C. whose 3.The person _ I trust is my teacher. A. who/whom B. which C. what A B A 4.All people _ have dreams can work hard. A. whom B. who C. where 5.The artist with _ we talked paints heroes. A. whom B. who C. he 6.This is the nurse _ everyone praises. A. who/whom B. which C. that B A A 定语从句练习 3 选词圈出 括号内选出正确关系代词 1.The hero (who/whom) saved kids is praised. 2.The writer (who/whom) we read about is famous. 3.The teacher of (who/whom) we are proud works hard. 定语从句练习 4 合并句子 写含 who/whom 的复合句 1.Tu Youyou is a scientist. She found artemisinin. 2.The worker is a role model. We talked of him yesterday.(介词 of 前置) 定语从句练习 5 单句改错 1.The doctor who we respect helped patients.(介词 for 前置改写错误句:The doctor for who we respect…) 2.Anyone whom wants to read this book is welcome. 3.The hero with who we chatted is a soldier. Tu Youyou is a scientist who found artemisinin. The worker of whom we spoke yesterday is a role model. who whom whom who who whom 定语从句练习 6 汉译英 1.那位培育杂交水稻的伟人是袁隆平。 2.我们敬佩的屠呦呦是伟大的科学家。 3.我们聊过的那位医生救助了许多妇女。 The great man who developed hybrid rice is Yuan Longping. Tu Youyou whom we respect is a great scientist. The doctor with whom we chatted saved many women. 前缀 en - 易错点总结 1.en - 置于词首,不要和词尾 - en 混淆 2.三单主语 en 动词末尾加 s,过去分词统一加 ed 3.endanger、enact 不可漏前缀 en,拼写易丢字母 4.enable 固定搭配 enable sb. to do,不能省略 to who/whom 易错点总结 1.从句缺主语只能用 who,不能用 whom 2.介词放在关系代词前面,只能选 whom 3.先行词是人,绝对不能用 which 引导 4.whom 仅作宾语,无介词时可替换 who 易混知识点对比 1.enrich(前缀)vs darken(后缀 - en) 2.who(主语,无介词前置)vs whom(宾语 / 介词后) 3.that 可指代人;who/whom 专门修饰人 4.enable sb. to do;encourage sb. to do 固定搭配 解题技巧(en 构词) 1.看到形容词 / 名词开头,表 “使” 优先考虑 en- 2.填空先判断时态、被动,再变换动词形式 3.改错优先检查前缀是否缺失、三单变形 解题技巧(定语从句 who/whom) 1.第一步找先行词,确认是人 2.第二步看从句缺主语还是宾语 3.第三步查看有无介词前置,有则必选 whom 知识点小结 1(前缀 en-) 1.en - 两大词义:使变得、颁布 / 陷入危险 2.熟记 enlarge/enrich/encourage/endanger/enact 3.掌握时态、被动语态下单词变形规则 4.区分前缀 en 与后缀 - en 不同位置用法 知识点小结 2(who/whom) 1.who 作从句主语;whom 作从句宾语 2.介词提前,只能使用 whom 3.熟练合并句子、改写、短文填空题型 4.和 that 形成完整修饰人的关系代词体系 教学课件 Unit6 语法专项 ——前缀en-+定语从句who/whom Thank you for listening! 31 $