Unit 2 How often do you exercise?知识归纳与练习讲义（含解析）2024-2025学年人教版八年级英语上册

Unit 2 重点短语 once a week / month /year 一周/月/年一次 twice a week / month /year 一周/月/年两次 基数词 + times a week/ month /year 一周/月/年几次 stay up (late) 熬夜 hardly ever 几乎从不 use the Internet 使用互联网 have good / bad habits 有好 / 坏习惯 help sb. With sth. = help sb. (to) do sth. 帮助某人做某事 ask sb. about sth. 询问某人关于某事 in one’s free time 在某人的空闲时间 at least 至少；不少于；起码 more than 多于 less than 少于 go online 上网 go camping 去野营 such as 例如（不能加句子） go to the dentist = see a dentist 去看牙医 have piano lessons 上钢琴课 spend time with sb. 和某人一起度过时光 swing dance 摇摆舞 teeth cleaning 牙齿清洁 junk food 垃圾食品 the answer to the question 问题的答案 the best way to do sth. 做某事的最好方式 as a result 因此 as a result of… 因为，由于 基数词+percent of +the+名词 百分之……的…… so+adj. +a/an + 单数名词=such + a/an + adj.+单数名词 如此/这样的一个…… 语法知识 频度副词 定义：表示事情发生频率的副词称为频度副词 频度副词按照发生的频率大小可排列为： always ＞ usually ＞ often ＞ sometimes ＞ hardly ＞ never。 意思 频度 always 总是 100% usually 通常 >= 80% often 经常 >= 50% sometimes 有时 >= 20% hardly (ever) 几乎不 <=5% never 从不 0 提示：频度副词在句中通常是放在实义动词之前，be动词、助动词或情态动词之后。有时为了强调也会放于句首，sometimes有时还会出现在句末。 【例句展示】： 1. She is always glad to help others. 她总是乐于助人。 2. My mother usually gets up at six. 我妈妈通常 6 点起床。 3. He often goes to the library. 他经常去图书馆。 4. Sometimes she plays tennis after school. 她有时放学后打网球。 5. I hardly know him. 我几乎不认识他。 6. I never go out at night. 我从不晚上出门。 2. 表示具体的频率、次数时可用副词词组 once a week / month /year 一周/月/年一次 twice a week / month /year 一周/月/年两次 基数词 + times a week/ month /year 一周/月/年几次 对频率提问 对表示频度的词（组）（如：once a week, every day 等）进行提问时，通常用 how often， 意为“多久（一次）”。 句子的时态一般是一般现在时态，也可以是一般过去时。 Miss Gao dances twice a week. (对划线部分提问) How often does Miss Gao dance 【练习】 一、单项选择 1．— _____ Mr. Li is in poor health, he still plans to compete for the job. —He has to feed a family of five. A．But B．So C．Although D．Because 2．I _____ eat dumplings for lunch. A．sometime B．sometimes C．some time D．some times 3．My father came back late last night _____ his car broke down on the way. A．and B．because C．but D．although 4．— What sports do you play — I go running every day, _____ it keeps me healthy. A．so B．but C．because D．although 5．—How often do you go to the English club —_____. A．For one week B．One week ago C．In one week D．Once a week 6．I like _____ TV these days because there are _____ advertisements. A．seeing, fewer B．looking at, fewer C．watching, less D．watching , fewer 7．Lions have _____ land to live on than before. So they are becoming ___ in number. A．less, less B．fewer, fewer C．less, fewer D．fewer, less 8．— Lily is good at math ... ...