Unit 2 频度副词用法专项2022-2023学年人教版英语八年级上册.docx

1、频度副词1. 概念：在一般现在时态的句子中，常出现usually，often，sometimes，never等表示频率的状语。这些词在英语中被称为频度副词。2. 频度副词强弱顺序always(100)usually(80)often(60) sometimes(40)seldom(20)hardly(10)hardly ever(5)never(0)。seldom、hardly、hardly ever、never具有否定意义。3. 特殊疑问句：一般用how often对频度副词进行询问。4. 频度副词在句中的位置：a.频度副词一般放在系动词be、助动词或情态动词之后，行为动词之前。eg. Le

2、i Feng is always helping others.We often exercise in the morning.b.有些频度副词可放在句首或句尾，用来表示强调。eg：Sometimes I walk home，and sometimes I go home by bus.c.never 用于否定句，意为“从不”， 一般放在have，has 后面。I never go to the dentist for teeth cleaning.5.频度副词短语once/twice a week 一周一次/两次，three times a day 一天三次，every day/week/

3、year 每天/每星期/每年【提示】三次或三次以上一般用“基数词times”来表示辨析：sometimes, some times, sometime与some timesometimes：是频度副词，意为“有时”，表示动作发生的不经常性，多与一般现在时连用，它可位于句首、句中或句末，对它提问用how often。some times是名词短语，意为“几次；几倍”，其中time是可数名词，对它提问用how many times。sometime是副词，意为“某个时候”，表示某个不确切或不具体的时间，常用于过去时或将来时，对它提问用when。some time是名词短语意为“一段时间”，表示“一

4、段时间”时，句中谓语动词常为延续性动词。对它提问用how long。巧记 sometimes, some times, sometime与some time “有时”相聚加s（sometimes）, “几次”分开带s（some times）。 相聚为“某时（sometime）”， 分开“一段时间（some time）”。连词成句1. stay up, hardly ever, late, I2. in, eats, usually, Tom, restaurant3. wear, school days, we, always, uniforms, on5.never, we, school,

5、 to, music players, can, bring, 6.-Miss Chen is very popular with her students.-Yes. Her classes are _lively and interesting.A. seldomB. alwaysC.sometimes7._ do you go to the bookstore?Twice a monthA.How long B. How many C.How often8. We go to the beach three times a month.(对画线部分提问)How_ do you go to the beach?9. He watches watch TV four times a week? (对画线部分提问)_ _ _ _ he _ TV a week?10.I practice playing the guitar on Tuesday and Friday.（改为同义句）_