内容正文:
频度副词
语法详解+专项练习
语法详解
(一)频度副词的定义
频度副词是用来表示动作发生频率的副词,外研版七上Unit 4围绕“节日庆祝、日常习俗”展开,频度副词是描述节日活动频率、日常行为习惯的核心词汇,如usually(通常)、often(经常)、sometimes(有时)。
(二)常见频度副词及频率等级
频度副词按频率从高到低可分为以下几类,七年级上册需掌握核心常用词的含义与用法:
频度副词
含义
频率等级
always
总是,一直
100%
usually
通常
80%
often
经常
60%
sometimes
有时
40%
seldom
很少
20%
never
从不
0%
(三)频度副词的位置
频度副词在句中的位置有固定规则,这是七年级上册的核心考点:
1. 放在be动词之后
例:She is always late for school.(她上学总是迟到);They are usually happy at Spring Festival.(他们春节通常很开心)。
2. 放在实义动词之前
例:I often visit my grandparents at weekends.(我周末经常看望祖父母);He sometimes eats dumplings for breakfast.(他有时早餐吃水饺)。
3. 放在助动词/情态动词之后,实义动词之前
例:We will never forget the Spring Festival.(我们永远不会忘记这个春节);She can always finish her homework on time.(她总能按时完成作业)。
4. 特殊情况
· sometimes可置于句首、句中或句末,置于句首时常用逗号隔开:Sometimes, I go to the park with my family.(有时,我和家人去公园)。
· often也可置于句末,需加very等修饰:He plays basketball very often.(他经常打篮球)。
(四)频度副词的用法
1. 描述日常行为或节日习俗的频率
例:We usually celebrate Christmas with our family.(我们通常和家人一起庆祝圣诞节);She seldom eats fast food.(她很少吃快餐)。
2. 回答关于频率的提问
· 用How often提问动作发生的频率,回答时直接用频度副词或加具体时间。
例:—How often do you go to the cinema?(你多久去一次电影院?)—Sometimes. / I go to the cinema sometimes.
3. 与一般现在时连用
频度副词常和一般现在时搭配,因为二者都用于描述经常性、习惯性的动作。
例:He always gets up early in the morning.(他早上总是早起);They never watch TV on school days.(他们上学日从不看电视)。
(五)高频易错点
1. 频度副词位置错误
· 错误:I am often late.(正确,be动词后)→ 误写为I often am late.;He plays usually football.(正确:He usually plays football.,实义动词前)。
2. sometimes的拼写错误
· 错误:sometime(意为“某个时候”,非频度副词)、some times(意为“几次”)与sometimes混淆。
3. 频度副词与时态搭配错误
· 错误:He is always go to school by bike.(频度副词与一般现在时连用,应为He always goes to school by bike.)。
4. How often提问的回答错误
· 错误:用How many times(问次数)或How long(问时长)的答语回应How often,如回答“Three times”而非“Sometimes”。
专项练习
(一)根据频率等级,将下列频度副词按从高到低排序
always, never, often, usually, sometimes, seldom
→ ________________________________________
(二)用适当的频度副词填空
1. I ______ celebrate Spring Festival with my grandparents. (80%的频率)
2. She ______ eats dumplings, because she doesn't like them. (0%的频率)
3. We ______ go to the park on Sundays. (60%的频率)
4. They ______ watch fireworks at night during the festival. (40%的频率)
5. He ______ gets up at six o'clock in the morning. (100%的频率)
6. My mother ______ cooks Chinese food for us. (20%的频率)
7. ______, I go to the library after school. (有时)
8. He ______ plays computer games, only on weekends. (通常)
9. We ______ forget to say "thank you" to our parents. (从不)
10. They ______ have a family reunion at Christmas. (经常)
(三)选择题
1. She ______ late for school. She is a good student.
A. never is B. is never C. never are
2. —______ do you visit your uncle? —Sometimes.
A. How long B. How often C. How many
3. I ______ play basketball with my friends after school.
A. usually B. am usually C. usually am
4. ______ he ______ go to the cinema on weekends?
A. Does; sometimes B. Sometimes; does C. Does; often
5. He plays football very ______.
A. often B. always C. never
(四)改正下列句子中的错误
1. I often am happy at Spring Festival.
→ ________________________________________
2. Sometime we eat mooncakes at Mid-Autumn Festival.
→ ________________________________________
3. He plays football always in the afternoon.
→ ________________________________________
4. How long do you go to the supermarket? —Seldom.
→ ________________________________________
5. They are never eat fast food.
→ ________________________________________
(五)阅读理解填词
Spring Festival is an important festival in China. We ______ (always) celebrate it with our family. My parents ______ (usually) clean the house before Spring Festival. My grandma ______ (often) makes dumplings for us. I ______ (sometimes) help her with the cooking. My brother ______ (seldom) helps, because he is too young. We ______ (never) go out on New Year's Eve. We ______ (always) watch the Spring Festival Gala together. I love Spring Festival, because I ______ (usually) get red packets from my grandparents.
练习答案
(一)根据频率等级排序
always → usually → often → sometimes → seldom → never
(二)用适当的频度副词填空
1. usually 2. never 3. often 4. sometimes 5. always 6. seldom 7. Sometimes 8. usually 9. never 10. often
(三)选择题
1. B 2. B 3. A 4. C 5. A
(四)改正下列句子中的错误
1. I am often happy at Spring Festival.
2. Sometimes we eat mooncakes at Mid-Autumn Festival.
3. He always plays football in the afternoon.
4. How often do you go to the supermarket? —Seldom.
5. They never eat fast food.
(五)阅读理解填词
always; usually; often; sometimes; seldom; never; always; usually
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