Unit 2 知识提纲2024-2025学年人教版英语八年级上册

Unit 2 How often do you exercise? 1 学科网（北京）股份有限公司 Section A 重点单词 朗读下列单词。 1. housework ['haʊswɜːk] n. 家务劳动 2. hardly ['hɑːdli] adv. 几乎不；简直不；刚刚 3. ever ['evə(r)] adv. 曾经；在任何时候 4. once [wʌns] adv. 一次；曾经 5. twice [twaɪs] adv. 两倍；两次 6. Internet ['ɪntənet] n. 因特网 7. program ['prəʊɡræm] n. 节目；程序；课程 8. full [fʊl] adj. 满的；充满的；完全的 9. *swing [swɪŋ] n. 摇摆；秋千v. 摇摆；旋转 10. maybe ['meɪbi] adv. 或许；也许；可能 11. least [liːst] adj. 最小的；最少的 朗读下列变形的单词 1. one—once(副词) 2. full—empty /hungry (反义词)-fill(动词) 3. swing—swung(过去式) 4. little—less(比较级)—least(最高级) 5. most--least (反义词) 6. two—twice (副词) 重点短语 朗读下列短语 1. how often　多久一次 2. help with housework　帮助做家务 3. hardly ever　几乎从不 4. on weekends　在周末 5. once a week　每周一次 6. twice a month　每月两次 7. be free　有空 ＝ have time 8. go to the movies　去看电影 =see a film 9. use the Internet　用互联网 10. have dance and piano lessons上舞蹈课和钢琴课 11. swing dance　摇摆舞 12. play tennis　打网球 13. stay up late　熬夜;睡得很晚 14. at least　至少;不少于;起码 15. play sports　进行体育活动 =have /do sports 重点句子 朗读下列句子。 1.“在周末你通常做什么?”“我经常去看电影。” —What do you usually do on weekends? —I often go to the movies. 2.“你多久看一次电视?”“一周两次。” —How often do you watch TV? —Twice a week. 3. 你最喜欢的节目是什么? What's your favorite program? = What program do you like best? 4. “下周你有空吗?” “下周对我来说相当忙碌。” —Are you free next week? —Next week is quite full for me. 5. 为什么? /怎么会? How come? 6. 我得和我的朋友们打网球。 I have to play tennis with my friends. 7. 他们经常帮忙做家务。 They often help with housework. 8. 他从不熬夜。 He never stays up late. 重点知识 记忆并掌握下列知识 知识点1 频度副词的用法 在句中的位置一般在实义动词之前，be动词、助动词或情态动词之后。 —Would you like some coffee? —No, thanks. I ______drink coffee. A. hardly B. often C. only D. always 知识点2 maybe的用法 1. maybe为副词,意为“大概;或许”,常用于表示不确定性。 2. 辨析maybe 与may be: 词条 用法 maybe 作副词,意为“也许”,同义词是perhaps,常用于句首,作状语。 may be 意为“也许是”,为“情态动词+be动词”结构,在句中作谓语。 例如: Maybe she is an English teacher. ＝ She may be an English teacher.也许她是一位英语教师。 She may be in Class 5. 她也许在五班。 Section B 重点单词 朗读下列单词。 1. junk [dk]n. 无用的东西；无价值的东西 2. coffee ['kɒfi] n. 咖啡；咖啡色 3. health [helθ] n. 健康；人的身体或精神状态 4. result [rɪ'zʌlt] n. 结果；后果 5. percent [pə'sent] adj. 百分之...的 6. online [ˌɒn'laɪn] adj. 在线的adv. 在线地 7. *television ['telɪvɪʒn] n. 电视机；电视节目 8. although [ɔːl'ðəʊ] conj. 虽然；尽管；然 9. through [θruː] prep. 穿过；凭借；一直到 10. mind [maɪnd] n. 头脑；想法；意见；心思 11. body ['bɒdi] n. 身体 12. such [sʌtʃ] adj. 这样的；如此的 13. together [tə'ɡeðə(r)] adv. 共同；一起 14. die [daɪ] v. 死；枯竭；消失 15. writer ['raɪtə(r)] n. 作者；作家 16. dentist ['dentɪst] n. 牙科医生 17. magazine ['mæɡəziːn] n. 杂志 18. however [haʊ'evə(r)] adv. 然而；无论如何 19. than [ðən] prep.&conj. 比 20. almost ['ɔːlməʊst] adv. 几乎；差不多 21. none [nʌn] pron. 没有人；没有任何东西 22. less [les] adv. 更少；较少 adj. &pron. 更少的；较少的 23. point [pɔɪnt] n. 看法；要点；重点；小数点；目标；分数 v. 指；指向 朗读下列变形的单词 1. healthy—health(名词)—unhealthy(反义词) 2. TV—television(完整形式) 3. body—bodies(复数) 4. die—dying(现在分词)—died(过去式) 5. write—writer(名词,指人)—wrote(过去式) 6. more—less /fewer(反义词) 7. though—although(同义词) 8. threw--through (同音词) 重点短语 朗读下列短语 1. junk food　垃圾食品 2. be good for　对……有好处 3. go camping　去野营 4. not…at all　一点儿也不 5. go online　上网 6. in one's free time　在某人的业余时间 7. the best way to do sth.　做某事的最好方式 8. such as　例如;像……这样 9. more than　多于 =over 10. less than　少于 11.the best way to do 做某事的最好方式 重点句子 朗读下列句子。 1. “你多久看一次电影?” “我也许一个月去看一次电影。” —How often do you go to the movies? —I go to the movies maybe once a month. 2. 我们都知道许多学生经常上网,但是让我们感到惊讶的是,90%的学生每天都上网,而另外10%的学生一周至少上网三至四次。 We all know that many students often go online, but we were surprised that ninety percent of them use the Internet every day. The other ten percent use it at least three or four times a week. 3. 对我们提出的关于看电视的问题的回答也十分有趣。 The answers to our questions about watching television were also interesting. 4. 尽管许多学生喜欢看体育节目,但是游戏类节目是最受欢迎的。 Although many students like to watch sports, game shows are the most popular. 5. 通过上网或看游戏类节目来放松很不错,但是我们认为最好的放松方式是通过锻炼。 It is good to relax by using the Internet or watching game shows, but we think the best way to relax is through exercise. 6. 这有益于身心健康。 It is healthy for the mind and the body. 7. 旧习难改。 Old habits die hard. 重点知识 1. Last month we asked our students about their free time activities. 上个月我们询问了学生们关于他们的业余活动的情况。 · ask sb. about sth. 意向“问某人关于某事的情况” 例如：Mary 正在问Tom关于新老师的事情。 Mary is asking Tom about the new teacher. 【复习】 · ask sb. for sth. 向某人要某物 · ask sb. to do sth. 叫某人做某事 2. Here are the results. 这是结果。 Here is/are 用于引出某事/物，意为“这是... ”,它也可用于刚刚找到某人或某物时，意为“...在这里”。 Here is a photo of my family. 这是我的全家照。 Here are Mike's keys. Mike的钥匙在这里。 【注意】在“Here + be + 主语”的结构中，be动词的单复数由其后的主语决定。（和There be 结构相似） 3. We found that only fifteen percent of our students exercise every day. 我们发现仅有百分之十五的学生每天锻炼。 · percent 名词，意为“百分之……” percent of 意为“…中的百分之…” 例如：我们班里80%的学生每天都锻炼。 e.g Eighty percent of the students in our class exercise every day. 【拓展】percent of 后接名词或代词作主语时，由其后名词或代词的的单复数来判断谓语动词的单复数。 e.g Seventy percent of the boys like playing computer games. e.g Twenty percent of the water is covered with ice. 4. And twenty percent do not exercise at all. 然后有20%的学生从不锻炼。 · not ... at all 意为“根本不，一点也不。”，注意，这里的not表示否定。 e.g He isn't (is not) a student at all. e.g Jane didn't (did not) like animals at all. 【拓展】 · Not at all 还意为“不客气”，相当于You are welcome。 5. The other ten percent use it at lease three or four times a week. 另外的15%的同学每周至少上网3-4次。 · the other意为“（两者之间的）另一个”。 常见固搭 ”one... the other...” 一个，另一个。 e.g He has two mooncakes. One is for you, the other is for him. 【拓展】 another: 三者或三以上的另一个，后接单数名词。 · at least 至少 （至多at most） e.g He can eat at least 8 drumsticks a meal.他一餐至少吃8个鸡腿。 6. The answers to the questions about watching television were also interesting. 对我们提出的有关电视的问题的回答，也颇有意思。 · the answers to the questions “问题的答案”， 此处 “答案”与 “问题”是一一对应的，用介词to, 类似的还有： the key to the door （门的钥匙） the solution to the problem （问题的解决方法） · 名词question 后常接介词about，表示“有关...的问题”。 e.g. He asked us some questions about study. 7. Although many students like to watch sports, game shows are the most popular. 虽然许多学生喜欢观看体育节目, 但游戏类节目却最受欢迎。 · although连词，意为“虽然，尽管；即使”，引导让步状语从句，相当于though。 e.g Although/ Though we are poor, we are still happy. =We are poor, but we are still happy. 虽然我们穷，但我们仍然很开心。 【注意】although/ though与but不可以同时出现在同一个句子中。 8. It's good to relax by using the Internet or watching game shows, but we think the best way to relax is through exercise. 通过使用互联网或看游戏类节目来放松是很好的，但是我们认为放松的最好方式是通过锻炼。 · It is + adj. (for sb.) to do sth. (对某人来说)做 … 怎么样。 e.g. 对我来说骑车上学是很容易的。 It is easy for me to go to school by bike. e.g. 对他们来说交朋友是很重要的。 It is important for them to make friends. · by在这里意为 “通过...,凭借/以...”，后面常加v-ing形式 常用来回答How do you ...? 或 How can I ...等问题。 e.g. How do you learn English? -- I learn it by listening to tapes. · through 介词，在这里意为“以、凭借”。 e.g. You can only achieve success through hard work. 你只有努力工作才能成功。 【拓展】through 还可以表示“穿过（强调从内部）”。across 横穿（从表面进行） e.g. The train through the tunnel(隧道) quickly. 9. Exercise such as playing sports is fun, and you can spend time with you friends and family as you play together. 像进行体育运动这样的锻炼是有趣的，当你和朋友、家人运动的时候，你可以和他们共度时光。 · such as 意为“例如，像...这样”，相当于like，用于举例。 e.g. I like many kinds of sports, such as playing basketball. 我喜欢各种各样的运动，例如打篮球。 · spend time with 和...一起共度/消磨时间 e.g. I often spend time with my good friend. $$