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五上人教版英语第二单元语法核心练

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五上人教版英语第二单元语法核心练

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五上人教版英语第二单元语法核心练

说明：聚焦五上人教版英语第二单元两大核心语法点——一般现在时第三人称单数用法和频率副词用法，含规则解析、单元例句及专项练习，附答案解析！

一、核心语法点1：一般现在时第三人称单数（单元重点）

1. 适用场景：当主语是“他（he）、她（she）、它（it）”或“单个人名、单数事物”时，句中的实义动词要变“第三人称单数形式”。
2. 变化规则+单元例句
规则类型
变化方法
单元主题例句（原形→三单）
一般情况
直接加-s
play→plays（He plays football on Sundays.）；read→reads（She reads books every evening.）
以s/x/ch/sh/o结尾
加-es
watch→watches（My dad watches TV on Saturdays.）；do→does（It does morning exercises at 7:00.）
以“辅音+y”结尾
变y为i加-es
study→studies（She studies English hard.）；fly→flies（The bird flies in the sky.）
不规则变化
特殊记忆
have→has（He has a new English book.）
3. 专项练习：用所给动词的适当形式填空

  1. My mother ______（wash）clothes on weekends.

  2. Tom ______（do）his homework every afternoon.

  3. She ______（have）a dancing class on Fridays.

  4. The cat ______（catch）mice（老鼠）very well.

  5. Mr. Li ______（teach）us English. We all like him.

二、核心语法点2：频率副词的用法（单元高频搭配）

1. 常见频率副词（按频率从高到低）：always（总是，100%）→ usually（通常，80%）→ often（经常，60%）→ sometimes（有时，30%）→ never（从不，0%）
2. 关键用法：

  • 放在“be动词”之后（He is always late for class.）；

  • 放在“实义动词”之前（She often plays the piano.）；

  • 对频率提问用“how often”（—How often do you read books? —Sometimes.）。

3. 单元主题例句：

  • I always go to school at 7:30.

  • My father usually reads newspapers after dinner.

  • They sometimes play basketball on Saturdays.

4. 专项练习

  1. 用频率副词填空（always/usually/often/sometimes/never）： ① He ______ eats breakfast at 7:00. It's his habit. ② I ______ go swimming in winter. It's too cold. ③ She ______ plays the pipa on Sundays, but sometimes she plays the erhu.

  2. 按要求改写句子： ① Tom often watches TV on weekends.（对划线部分提问）______ ______ Tom ______ TV on weekends? ② Lily is always happy.（改为一般疑问句）______ Lily ______ happy?

三、综合提升练（结合单元主题“日常活动”）

阅读短文，用所给词的适当形式填空或选择正确答案。
My name is Lucy. I have a good friend. Her name is Mary. She ______（live）near my home. Mary ______（get）up at 6:30 every morning. She ______（always/never）eats breakfast at home. She ______（go）to school by bike. After school, she often ______（do）her homework first. Sometimes she ______（play）with her cat. On Sundays, she usually ______（visit）her grandparents. They love her very much.
Questions: 1. How often does Mary eat breakfast at home?（ ） A. Sometimes B. Always C. Never

答案及解析

一、专项练习答案：1. washes 2. does 3. has 4. catches 5. teaches 解析：1. 主语mother是第三人称单数，wash直接加-es；4. catch以ch结尾，加-es；5. teach以ch结尾，加-es。
二、专项练习答案： 1. ① always ② never ③ usually 2. ① How often does; watch ② Is; always 解析：对频率提问用how often，主语Tom是三单，助动词用does，后面动词用原形。
三、综合提升练答案：lives; gets; always; goes; does; plays; visits; 1. B 解析：全文围绕日常活动，用一般现在时，主语Mary是三单，动词均用三单形式；由“She always eats breakfast at home.”可知第1题选B。


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