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Unit 6 From Nobody to Somebody 同步【语法】 前缀 en- 复习和练习 【同步语法复习】 1、 全国近三年中考考点评估 (1) 命题概况 前缀en-集中出现在词形转换、语法填空、选词填空、书面表达中。 本知识点侧重“形容词/名词加en-变动词”的构词逻辑,侧重语境词性变形、时态语态适配、固定搭配运用,是中考拉分的重点构词考点,考查频率稳定、实用性极强。 (2) 中考核心考查方向 1. 构词变形: en- 前缀含义:使……;让……;置于…… 之中 构词总原则:en- +名词/形容词 动词 熟练掌握enrich、enable、encourage、enlarge、endanger、ensure、enact、enforce八大必考词汇 单词 词根 词根词性 构词结构 释义 enrich rich 形容词(富有的) en- +形容词 rich 动词 使丰富;充实 enable able 形容词(能够的) en- +形容词 able 动词 使能够;使成为可能 encourage courage 名词(勇气) en- +名词 courage 动词 鼓励;激励 enlarge large 形容词(大的) en- +形容词 large 动词 扩大;放大 endanger danger 名词(危险) en- + 名词 danger 动词 危及;使遭受危险 ensure sure 形容词(确定的) en- + 形容词 sure 动词 确保;保证 enact act 名词(法令,行动) en- + 名词 act 动词 制定(法律);颁布;实施 enforce force 名词(力量,武力) en- + 名词 force 动词 强制执行;实施 2. 语法适配: 结合时态、被动语态、非谓语动词考查词形变形,是中考最主流考法 3. 固定搭配: 重点考查enable sb. to do、encourage sb. to do等写作高频句型 4. 语境辨析: 结合生活、环保、成长、文化传承话题,区分不同en-动词语义 (3) 高频易错点 1. 词性混淆: 误将名词courage、形容词rich直接作谓语,忘记加en-变动词; 2. 变形失误: 时态语态变形错误,被动语态漏写过去分词、三单变形遗漏s; 3. 搭配误用: 错用enable sb. do,遗漏不定式to; 4. 语义混淆: 混淆enforce(执行)、enact(颁布)、endanger(危及)词义,语境误用; 5. 句式混用: ensure后接从句,不可直接接sb. to do,属于高频语法陷阱。 2、 课本核心语法 (1) 核心构词定义 前缀 en- 是动词性前缀,加在形容词、名词前,构成全新动词,核心含义:使……;让……变得……;置于……状态中,是本课时唯一核心构词考点。 (2) 两大构词规则 构词类型 变形规则 必考单词 中文释义 en + 形容词 动词 形容词前直接加en-,词性变为动词 rich enrich large enlarge sure ensure able enable 使丰富 使扩大 确保 使能够 en + 名词 动词 名词前直接加en-,转化为动作含义 courage encourage danger endanger act enact force enforce 鼓励 危及 颁布 执行 (3) 固定搭配 1. enable sb. to do sth. 使某人能够做某事 2. encourage sb. to do sth. 鼓励某人做某事 3. enrich one’s life/knowledge 丰富生活/知识 4. endanger one’s health/life 危及健康/生命 5. ensure (that) 从句 确保…… 6. enforce laws/rules 执行法律/规则 3、 课本习题 (1) 课本习题Activity 1 1. My grandfather needs a tool to help him enlarge the words in the newspaper. 句意:我爷爷需要一个工具帮他放大报纸上的文字。 解析:large adj. 大的 enlarge v. 放大、扩大;不定式to后接动词原形。 2. Parents always encourage kids to join in challenging activities. 句意:父母总是鼓励孩子参加有挑战性的活动。 解析:courage n. 勇气 encourage v. 鼓励;固定搭配encourage sb. to do sth.。 3. The light coming in through the window enriches the colors in the picture. 句意:透过窗户照进来的光线丰富了画面的色彩。 解析:rich adj. 丰富的 enrich v. 使丰富;主语light为不可数名词,谓语动词用三单。 (2) 课本习题Activity 2 endanger, enact, enforce, enrich 1. As is known to us all, Dickens' novels have enriched English literature. 句意:众所周知,狄更斯的小说丰富了英国文学。 解析:现在完成时have+过去分词,enrich过去分词enriched。 2. Many writers have the power to enact their ideas and thoughts in their stories. 句意:许多作家有能力在作品中体现自己的思想与想法。 解析:固定结构have the power to do sth.,不定式后接动词原形enact。 3. The great leader made many laws to protect the poor and made sure the laws were enforced. 句意:这位伟大的领袖制定了许多保护穷人的法律,并确保法律得以执行。 解析:被动语态be+过去分词,enforce表示“执行、实施”,过去分词enforced。 4. The hero was ready to do everything for the people even if his own life was endangered. 句意:这位英雄愿意为人民奉献一切,哪怕自己的生命受到威胁。 解析:被动语态be+过去分词,endanger表示“危及、使危险”,endangered表“处于危险中”。 (3) 课本习题Activity 3 Lin Qiaozhi was a doctor who studied women’s diseases. She was born in Xiamen, Fujian Province in 1901. Her hard work at school enabled (able) her to realize her dream of becoming a doctor. She always tried to enrich (rich) patients’ lives with care and love, and her efforts also ensured (sure) more women got proper medical care. She once said, “I can’t do without patients. I won’t be happy if I don’t see my patients for one day.” She was very positive and always encouraged (courage) women to keep learning. She has set a good example for Chinese women, and her work has helped greatly in Chinese health care. 解析 1. enabled:形容词able变动词enable,全文过去时态,用过去式;enable sb. to do sth. 使某人能够做某事。 2. enrich:形容词rich变动词enrich,try to do后接动词原形。 3. ensured:形容词sure变动词ensure,一般过去时,主句谓语。 4. encouraged:名词courage变动词encourage,一般过去时,与前文时态一致。 【同步语法练习】 ——基础层—— 一、单项选择 1. Continuous reading can our knowledge and broaden our horizons greatly. A. enrich B. enlarge C. endanger D. enforce 2. Modern technology ordinary people to work and study more efficiently. A. encourages B. enables C. ensures D. enacts 3. Schools always students to take part in meaningful social practice. A. enforce B. endanger C. encourage D. enlarge 4. Strict traffic rules must be to protect people’s safety on the road. A. enriched B. enforced C. endangered D. enabled 5. Low-carbon living habits us to live a healthy and green life every day. A. ensure B. enlarge C. endanger D. enable 二、用en-前缀动词适当形式填空 1. Daily exercise (sure) us to keep healthy and energetic all the time. 2. Human’s careless behaviors (danger) many wild animals’ living environment now. 3. After learning art, many students’ inner world (rich) a lot last year. 4. Teachers and parents always (courage) teenagers to face difficulties bravely. 5. The new cultural policy (large) the development space of local traditional art. ——提升层—— 一、判断正(T)误(F)并改正 ( ) 1. Positive words always encourage us keep moving forward in our life. ( ) 2. The new safety laws enacted last month are helpful for public protection. ( ) 3. Polluted water and noise will endanger people’s healthy seriously. ( ) 4. Good learning habits enable students improve their grades step by step. ( ) 5. Reading classic books enriches our mind and improves our taste. 二、中译英(运用en-前缀动词) 1. 不断学习的能力能够拓宽我们的眼界、丰富我们的阅历。 2. 老师的耐心指导总能鼓励我们勇敢挑战学习中的困难。 3. 随意丢弃垃圾会污染环境,甚至危及动植物的生存。 4. 严格执行校园规则能够保障学生的校园安全。 5. 丰富的社会实践能让青少年收获成长、锻炼能力。 ——拓展层—— 一、语法填空 阅读短文,用括号内单词的正确形式填空,每空一词。 Growing up is a process that changes us greatly. Good habits 1.(able) us to become more excellent. Different kinds of activities 2.(rich) our school life and bring us new experience. Our teachers always 3.(courage) us to try new things and learn from mistakes. Strict but fair rules 4.(sure) every student studies in a safe environment. Bad habits will 5.(danger) our physical and mental health. Schools and parents 6.(large) teenagers’ vision by providing various learning resources. The new education policy 7.(act) last term helps students develop in an all-round way. The school always 8.(enforce) strict management to keep order. Positive guidance 9.(courage) every child to keep progress. All these efforts 10.(sure) teenagers a bright future. 二、语法小作文 写作要求: 1. 词数:80–110词; 2. 语法要求:至少运用3个不同的en-前缀动词,包含enable/encourage/enrich核心考点; 3. 话题:The Changes Brought by Good Habits(好习惯带来的改变)。 参考范文 参考答案和解析 ——基础层—— 一、单项选择 1. 答案:A 句意:持续阅读能极大丰富我们的知识、开阔眼界。 解析:enrich“使丰富”,适配知识、阅历搭配;enlarge侧重尺寸放大,endanger意为危及,enforce意为执行,均不符合语境。 2. 答案:B 句意:现代科技让普通人能够更高效地工作和学习。 解析:固定搭配enable sb. to do sth. 使某人能够做某事;encourage鼓励,ensure后接从句,enact颁布,均不适配句型。 3. 答案:C 句意:学校总是鼓励学生参与有意义的社会实践。 解析:encourage sb. to do sth. 鼓励某人做某事,为固定高频搭配;其余选项语义不符。 4. 答案:B 句意:严格的交通规则必须被执行,以保障人们的道路出行安全。 解析:enforce rules/rules 执行规则,被动语态be enforced,贴合法治语境。 5. 答案:D 句意:低碳的生活习惯让我们每天都能过上健康绿色的生活。 解析:enable sb. to do sth. 使某人能够做某事,主谓一致,habits复数,动词用原形。 二、用en-前缀动词适当形式填空 1. 答案:ensures 句意:日常锻炼确保我们一直保持健康和精力充沛。 解析:一般现在时,主语daily exercise为不可数名词,sure变动词ensure,三单形式ensures。 2. 答案:endanger 句意:人类的随意行为正在危及许多野生动物的生存环境。 解析:主语behaviors为复数,一般现在时,danger变动词endanger,用原形。 3. 答案:enriched 句意:学习艺术后,许多学生的内心世界在去年变得更加丰富。 解析:last year为一般过去时,rich变动词enrich,过去式enriched。 4. 答案:encourage 句意:老师和家长总是鼓励青少年勇敢面对困难。 解析:always表一般现在时,主语为复数,courage变动词encourage,用原形。 5. 答案:enlarges 句意:新的文化政策扩大了本土传统艺术的发展空间。 解析:主语policy单数,一般现在时,large变动词enlarge,三单enlarges。 ——提升层—— 一、判断正(T)误(F)并改正 1. 答案:F;keep to keep 句意:积极的话语总是鼓励我们在生活中不断前行。 解析:固定搭配encourage sb. to do sth.,必须加不定式to,属于高频易错点。 2. 答案:T 句意:上个月颁布的新安全法规有助于公共安全防护。 解析:enacted过去分词作后置定语,修饰laws,语法、语义均正确。 3. 答案:F;healthy health 句意:污水和噪音会严重危害人们的身体健康。 解析:endanger为及物动词,后接名词作宾语,healthy形容词改为名词health。 4. 答案:F;improve to improve 句意:良好的学习习惯让学生能够逐步提升成绩。 解析:固定搭配enable sb. to do sth.,不可省略不定式符号to。 5. 答案:T 句意:阅读经典书籍丰富我们的思想、提升我们的品味。 解析:主语为单数,enrich三单变形正确,搭配语义完全无误。 二、中译英(运用en-前缀动词) 1. 答案:The ability to keep learning can enlarge our horizons and enrich our experience. 解析:运用enlarge、enrich两个核心en-动词,情态动词can后接动词原形,句式规范。 2. 答案:Teachers’ patient guidance always encourages us to challenge difficulties in study bravely. 解析:考查encourage sb. to do固定搭配,一般现在时主谓一致。 3. 答案:Throwing rubbish casually will pollute the environment and even endanger the survival of plants and animals. 解析:endanger表“危及”,will后接动词原形,适配语境。 4. 答案:Strictly enforcing campus rules can ensure students’ safety at school. 解析:动名词作主语,搭配enforce rules、ensure宾语从句核心考点。 5. 答案:Rich social practice can enrich teenagers’ life experience and develop their abilities. 解析:enrich核心动词运用,贴合单元话题,语法零错误。 ——拓展层—— 一、语法填空 1. 答案:enable 句意:良好的习惯使我们能够变得更加优秀。 解析:主语habits复数,一般现在时,able变动词enable,用原形。 2. 答案:enrich 句意:各式各样的活动丰富我们的校园生活,带给我们新的体验。 解析:主语activities复数,rich变动词enrich,一般现在时原形。 3. 答案:encourage 句意:我们的老师总是鼓励我们尝试新事物、从错误中学习。 解析:主语teachers复数,courage变动词encourage,用原形。 4. 答案:ensure 句意:严格公正的制度确保每一位学生在安全的环境中学习。 解析:主语rules复数,sure变动词ensure,一般现在时原形。 5. 答案:endanger 句意:坏习惯会危及我们的身心健康。 解析:will后接动词原形,danger变动词endanger。 6. 答案:enlarge 句意:学校和家长通过提供多样的学习资源拓宽青少年的视野。 解析:主语为复数,large变动词enlarge,用原形。 7. 答案:enacted 句意:上学期颁布的新教育政策助力学生全面发展。 解析:过去分词enacted作后置定语,修饰policy,表被动。 8. 答案:enforces 句意:学校始终严格执行管理以维持秩序。 解析:主语school单数,一般现在时,enforce三单enforces。 9. 答案:encourages 句意:积极的引导鼓励每一个孩子不断进步。 解析:主语guidance不可数,encourage三单形式encourages。 10. 答案:ensure 句意:所有这些努力为青少年保障了光明的未来。 解析:主语efforts复数,ensure用原形。 二、语法小作文 The Changes Brought by Good Habits Good habits bring great and positive changes to our daily life and personal growth. Firstly, good reading habits enrich our professional knowledge and broaden our horizons greatly in our spare time. Secondly, regular exercise enables us to keep healthy and energetic enough to face busy study and tough work. Besides, positive living attitudes always encourage us to overcome all kinds of difficulties bravely in our journey of growth. These good habits also ensure that we can make steady and continuous progress every day. They shape our noble personality and help us become better versions of ourselves. 学科网(北京)股份有限公司 $