七年级英语下册Unit6语法讲义 平级的比较 一、平级比较的定义 平级比较用来表示 “两者在某方面程度相同” 或 “两者在某方面程度不同”，核心标志是 as... as... 或其否定形式 not as / so... as...。 二、平级比较的结构 1. 肯定句：表示 “和…… 一样……” 结构：A + be / 动词 + as + 形容词 / 副词原级 + as + B 例句： She will become as successful as her role model. I was as happy as you yesterday. 2. 否定句：表示 “不像…… 那样……” 结构：A + be / 动词 + not as /so + 形容词 / 副词原级 + as + B 例句： My sister is not as careful as my brother. It isn’t so cold as yesterday. 注意：两个 as 之间的形容词或副词必须使用原级，这一点与用 than 的比较级句型不同。 三、平级比较 vs 比较级 句型 含义 结构 形容词 / 副词形式 as... as... 和…… 一样 A + as + 原级 + as + B 原级 not as / so... as... 不像…… 那样 A + not as /so + 原级 + as + B 原级 比较级 + than 比…… 更…… A + 比较级 + than + B 比较级 四、配套练习 （一）基础填空 This book is _____ (interesting) as that one. He is not _____ (tall) as his father. She runs _____ (fast) as her brother. Today is not _____ (cold) as yesterday. This movie is _____ (good) as that one. （二）句型转换 Tom is as tall as Jack.（改为否定句）Tom is _____ _____ _____ Jack. This room is not as clean as that one.（改为同义句，用比较级）That room is _____ _____ this one. She is not so careful as her sister.（改为同义句）Her sister is _____ _____ than her. （三）情景选择 当你想表达 “她和你一样开心” 时，应说：A. She is as happy as you.B. She is happier than you. 当你想表达 “今天不像昨天那么冷” 时，应说：A. Today is not as cold as yesterday.B. Today is colder than yesterday. 五、参考答案 （一）基础填空 as interesting as tall as fast as / so cold as good （二）句型转换 not as / so tall as cleaner than more careful （三）情景选择 A A 平级比较课堂小测 （时间：15 分钟 满分：30 分） 一、单项选择（每题 2 分，共 10 分） This movie is _____ as that one.A. interesting B. more interesting C. the most interesting He is not _____ as his brother.A. tall B. taller C. the tallest She runs _____ as her sister.A. fast B. faster C. the fastest Today is _____ as yesterday.A. cold B. colder C. the coldest This book is not _____ as that one.A. good B. better C. the best 二、用所给词的适当形式填空（每题 2 分，共 10 分） This story is as _____ (exciting) as that one. He is not as _____ (clever) as his friend. She sings as _____ (well) as her teacher. This problem is not as _____ (difficult) as that one. The river is as _____ (long) as that one. 三、句型转换（每题 2 分，共 10 分） Tom is as tall as Jack.（改为否定句）Tom is _____ _____ _____ Jack. This room is not as clean as that one.（改为同义句，用比较级）That room is _____ _____ this one. She is not so careful as her sister.（改为同义句）Her sister is _____ _____ than her. This movie is as popular as that one.（改为否定句）This movie is _____ _____ _____ that one. He runs as fast as me.（改为同义句）I don’t run _____ _____ as him. 参考答案 一、单项选择 A A A A A 二、用所给词的适当形式填空 exciting clever well d ... ...
