八上 英语 教学讲义Unit_2.docVIP

Unit2 How often do you exercise? 语法知识 频度副词 1. 频度副词的含义 (1) 表示次数、频率的副词称为频度副词。 always usually sometimes seldom hadly ever never 100% 80% 60% 30% 10% 0% (2) 表示具体的频率、次数时，一次用once，两次用twice，三次或三次以上用“基数词+times”表示: three times 2. 频度副词在句中的位置 (1 )频度副词一般在实意动词之前，be 动词、助动词或情态动词之后 E.g. We never eat junk food. Lucy is sometimes very busy. I can hardly say a word. (2)有些频度副词也可位于句首，但表示不同含义 sometimes 常位于句首，和位于句中区别不大。 E.g. Sometimes Jack plays computer games. often 用于句首时，通常表示强调，且其前一般有quite，very 修饰 Usually 也可位于句首，其前不用修饰语。 Always 一般不用于句首，但可以用在祈使句中。 3. 对频度副词提问时，用how often E.g. ---How often do you go to the movies? ---Once a month 二、重点短语 such as 垃圾食品 超过；多于；不仅仅；非常 less than 帮助做家务 在周末 多久一次 hardly ever once a week twice a month 每天 有空 去看电影 用互联网 swing dance 打网球 熬夜；睡得很晚 至少 have dance and piano lessons 早点睡觉 进行体育活动 对……有好处 去野营 一点儿也不…… 在某人的业余时间 最受欢迎的go to the dentist 帮助某人做某事 How about…? 想让某人做某事 spend time with sb. 向某人询问某事 What’s your favorite…? the best way to do sth. 三、必句子 We found that only fifteen percent of our students exercise every day.我们发现仅仅百分之十五的学生每天锻炼。 We all know that many students often go online, we were surprised that ninety percent of them use the Internet every day.我们都知道很多学生经常上网，我们很吃惊他们中有百分之九十的人每天上网。 Although many students like to watch sports, game shows are the most popular. 虽然很多学生喜欢看体育节目，但游戏节目依然是最受欢迎的。 It is good to relax by using the Internet or watching game shows, but we think the best way to relax is through exercise.通过上网或看游戏节目来放松很好，但是我们认为最好的放松方法还是通过锻炼。 It’s healthy for the m