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译林版七年级上册Unit 4 School days 语法精讲精练
单元核心语法总览(必考全覆盖)
1.一般现在时:动词第三人称单数变化、肯定/否定/疑问句型(本单元最重难点)
2.时间介词 in / on / at 精准用法区分(考试高频易错)
3.频度副词 always/usually/often/sometimes/seldom/never 位置与用法
语法一:一般现在时(三单动词变化+句型)
【语法精讲】
一般现在时用于描述:日常习惯、经常性动作、固定状态、客观事实,完美适配本单元“校园日常作息”话题。
1. 句型结构(必背)
✅ 肯定句:
I/You/We/They + 动词原形
He/She/It/单数人名单数物 + 动词三单形式
✅ 否定句:
I/You/We/They + don’t + 动词原形
He/She/It + doesn’t + 动词原形(重点:doesn’t 后动词还原原形)
✅ 一般疑问句:
Do + 一二人称/复数 + 动词原形…?
Does + 三单主语 + 动词原形…?
2. 动词三单变化规则(单元核心考点)
① 一般情况:直接加 -s work→works, play→plays
② 以 s/x/ch/sh/o 结尾:加 -es watch→watches, go→goes, do→does
③ 辅音字母+y 结尾:变 y 为 i 加 -es study→studies
④ 特殊不规则:have→has
3. 高频易错点
❌ He doesn’t likes English.(错!does 后用原形)
✅ He doesn’t like English.
❌ She go to school at 7:00.(错!三单未变形)
✅ She goes to school at 7:00.
4. 经典例句(课本原话题)
I go to school from Monday to Friday.
Millie studies hard at school.
He doesn’t have lessons on Sunday.
【专项练习一:一般现在时专项】
A. 用动词适当形式填空(10题)
1. He ______ (go) to school at 7 o’clock every morning.
2. I ______ (have) six lessons every day.
3. Amy ______ (study) English very well.
4. My brother ______ (not like) Maths.
5. They ______ (play) football after school.
6. Does she ______ (watch) TV every evening?
7. Simon ______ (do) his homework after dinner.
8. The school ______ (start) at 8:00 a.m.
9. We ______ (not have) lessons on weekends.
10. Kitty ______ (have) lunch at school.
B. 句型转换
1. I go to school at 7:30.(改为否定句)
I ______ ______ to school at 7:30.
2. She studies hard at school.(改为一般疑问句)
______ she ______ hard at school?
3. He has lunch at school.(改为否定句)
He ______ ______ lunch at school.
4. They play basketball after school.(对划线部分提问)
______ ______ they ______ after school?
5. Millie watches TV every night.(改为一般疑问句并否定回答)
—______ Millie ______ TV every night?
—No, ______ ______.
6. My school starts at 8:00.(改为否定句)
My school ______ ______ at 8:00.
7. We have seven subjects this term.(对划线部分提问)
______ ______ subjects ______ you ______ this term?
8. He does his homework after school.(改为一般疑问句)
______ he ______ his homework after school?
9.I often read books in the library.(改为三单句,主语改为She)
She often ______ ______ in the library.
10. They don’t go to school on Sunday.(改为肯定句)
They ______ to school on Sunday.
语法二:时间介词 in / on / at 用法辨析(超易错)
【语法精讲】
本单元核心介词考点,用于描述上课、作息、活动时间,三者时间范围由小到大:at → on → in
1. 完整用法对照表
介词
核心用法
常用搭配
at
精准时刻、固定短时间点
at 8:15, at noon, at night, at weekends, at lunchtime
on
具体某一天、星期、具体某天早中晚
on Monday, on Sunday morning, on 1st October, on weekdays
in
大范围时间:年、月、季节、泛指早中晚
in September, in spring, in the morning/afternoon/evening
2. 必背口诀
at 针对点,on 针对天,in 针对年月季节和早晚
3. 超级易错考点
泛指早上:in the morning
具体某天早上:on Monday morning(必须换 on)
固定搭配:at weekends(周末)、on weekdays(工作日)
【专项练习二:时间介词填空】15题
用 in / on / at 填空
1. We have lessons ______ 8:00 a.m.
2. I go to school ______ Monday ______ Friday.
3. We don’t have lessons ______ weekends.
4. I get up early ______ the morning.
5. He plays football ______ Tuesday afternoon.
6. Our school starts ______ September.
7. We have a break ______ lunchtime.
8. I watch TV ______ the evening.
9. She goes to the library ______ Sunday morning.
10. We have no classes ______ Sunday.
11. He studies hard ______ winter.
12. They play games ______ night.
13. My birthday is ______ 5th October.
14. We have PE lessons ______ the afternoon.
15. I do my homework ______ 7:00 p.m.
语法三:频度副词用法(位置+词义辨析)
【语法精讲】
频度副词用于描述动作发生的频率,是本单元口语与写作高频考点。
1.频率从高到低排序(必背)
always(总是) > usually(通常) > often(经常) > sometimes(有时) > seldom(很少) > never(从不)
2.黄金位置规则(必考)
① 实义动词之前:I often play football.
② be动词、情态动词之后:She is always busy.
3. 易错点
sometimes 位置最灵活,可放句首、句中、句末
never 本身含否定含义,不与 not 连用
【专项练习三:频度副词专项】15题
A. 选词填空(always/usually/often/sometimes/seldom/never)
1.I ______ get up at 6:30. I do it every day.(总是)
2.He ______ watches TV, so he knows little about TV shows.(很少)
3.______ I walk to school, but sometimes I ride a bike.(有时)
4.My mother ______ cooks dinner for me.She does it most days.(通常)
5.I ______ play basketball.I don’t like it at all.(从不)
6.She ______ reads books after school,about four times a week.(经常)
7. He is ______ late for school. He is on time every day.
8. We ______ have a good time at school.
9. ______ I do my homework in the library.
10.My father ______ works on Sundays, not always.
B. 句型改写(按要求插入频度副词)
1. I go to school on foot.(usually)
2. She is busy on weekdays.(always)
3. He plays football after school.(sometimes)
4. They don’t have lessons on Sunday.(never)
5. Millie watches TV in the evening.(often)
语法四:单元高频固定句型(配套巩固)
【语法精讲】
1. from Monday to Friday 从周一到周五
2. have lessons 上课 / have a break 休息
3. start/finish school 开始/结束上学
4. do one’s homework 做作业
【专项练习四:完成句子】
1. 我从周一到周五上学。
I go to school ______ Monday ______ Friday.
2. 我们八点开始上课。
Our lessons ______ ______ 8:00.
3. 他放学后经常做作业。
He ______ ______ ______ ______ after school.
4. 我们周末不上课。
We ______ ______ lessons ______ ______.
5. 我有时在下午休息。
I ______ ______ ______ ______ in the afternoon.
6. 她每天七点去上学。
She ______ ______ ______ at seven every day.
7. 他们通常在学校吃午饭。
They ______ ______ ______ at school.
8. 我很少晚上看电视。
I ______ ______ TV in the evening.
9. 学校九点结束。
School ______ ______ at nine.
10. 他总是努力学习。
He ______ ______ hard.
全套参考答案与详细解析
专项一 一般现在时答案+解析
A. 动词填空
1. goes 解析:he三单,go变goes
2. have 解析:I后接动词原形
3. studies 解析:Amy三单,辅音+y结尾变y为i加es
4. doesn’t like 解析:三单否定用doesn’t+动词原形
5. play 解析:they复数,动词原形
6. watch 解析:does提前,动词还原原形
7. does 解析:Simon三单,do变does
8. starts 解析:school单数,动词三单
9. don’t have 解析:we复数,否定用don’t
10. has 解析:Kitty三单,have不规则变has
B. 句型转换
1. don’t go
2. Does; study
3. doesn’t have
4. What do; do
5. Does; watch; she doesn’t
6. doesn’t start
7. How many; do; have
8. Does; do
9. reads books
10. go
专项二 时间介词答案
1. at 2. from, to 3. at 4. in 5. on
6. in 7. at 8. in 9. on 10. on
11. in 12. at 13. on 14. in 15. at
专项三 频度副词答案
A. 选词填空
1.always 2. seldom 3. Sometimes 4. usually 5. never
6.often 7. never 8. always/usually 9. Sometimes 10. often
B. 句型改写
1. I usually go to school on foot.
2. She is always busy on weekdays.
3. He sometimes plays football after school.
4. They never have lessons on Sunday.
5. Millie often watches TV in the evening.
专项四 完成句子答案
1. from; to
2. start at
3. often does his homework
4. don’t have; at weekends
5. sometimes have a break
6. goes to school
7. usually have lunch
8. seldom watch
9. finishes school
10. always studies
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