Unit2 Grammar Focus学案 2023-2024学年人教版八年级英语上册

Unit 2 How often do you exercise? Grammar Focus (3a--3c) 单元语法： 1. 频度副词 (1) 频度副词表示事情发生的频率，可用来回答how often引导的问句。 · How often do you go to the movies? · How often does Alex go to New York City? · How often does your brother use the Internet? (2) 常用的频度副词有： 1　 always, usually, often, sometimes, hardly ever, never等。其表示的频率由高到低排列如下： always>usually>often>sometimes>hardly ever>never 2　 表示具体的频率、次数时，可用once, twice或“基数词+times”表示，如： · They take their daughter to the park once a week. · Potter goes to the library about three or four times a month. · Dan plays soccer twice a week. (3) 频度副词在句中的位置： 1　 实义动词之前 · I usually go to the movies once a month. · He hardly ever goes fishing. 2　 助动词、情态动词之后 · My father doesn’t often sing. · I will never forget you. · No one can always help you. 3　 be动词之后 · She is always looking nice. · Ada is always complaining about her life. 4　 有时也可置于句首或句尾。 · Sometimes he dances at home. · My family eat out sometimes. 重点词汇及常用短语： 1. sometimes adv. 有时 （相当于at times） · Tim sometimes drink milk for breakfast. · They sometimes go skating in winter. 〖拓展〗sometimes, some times, sometime, some time sometimes 频度副词，“有时”，表示动作不经常发生，可位于句首、句中和句末，常用于一般现在时 some times 名词短语，“几次，几倍” sometime 副词，“在某时”，表示某个不确切或不具体的时间常用于过去式或将来时 some time 名词短语，“一段时间” · My dad sometimes sings in his room. · It takes me some time to finish reading a book. · Lily called me some times in the evening. · My notebook is missing. But I think I can find it sometime. 2. healthy breakfast 健康的早餐 其中healthy是形容词，意为“健康的” · We should eat healthy food. · It’s healthy for us to go to bed early. 〖拓展〗healthy的名词形式是：health，意为“健康,人的身体（或精神）状态” · She says it’s bad for my health. · The old man has some health problems. 2. at least 至少，不少于，起码 · Leo plays the violin at least twice a week. · Fiat goes out with his friend at least five times a month. 〖注意〗least意为“最少的，最小的，最少，最小”，是little的最高级。表示“最少的，最小的”时，修饰不可数名词。如： · Henry has the least experience among all the workers. · Sally has the least money in his family.