八年级上册英语第一单元笔记重点难点有哪些？

八年级上册英语第一单元核心笔记

单元主题： How often do you exercise? (你多久锻炼一次？) 核心语法： 频率副词 的运用 核心功能： 谈论日常活动、习惯和频率

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Part 1: 核心词汇

频率副词

这是本单元的重中之重！它们用来描述动作发生的频率，通常放在 be动词、助动词、情态动词之后，实义动词之前。

频率副词	中文意思	百分比/频率	例句
always	总是；一直	100% (100% of the time)	I always finish my homework on time. (我总是按时完成作业。)
usually	一般	80%	He usually goes to school by bus. (他通常乘公交车去上学。)
often	经常	60%	Do you often play basketball? (你经常打篮球吗？)
sometimes	有时	40%	I sometimes watch movies on weekends. (我有时周末看电影。)
hardly ever	几乎不；很少	10% (almost never)	She hardly ever eats junk food. (她几乎不吃垃圾食品。)
never	从不	0% (0% of the time)	I never get up late. (我从不晚起。)

记忆技巧： 可以想象一个频率阶梯： always > usually > often > sometimes > hardly ever > never

日常活动与爱好

类别	单词	中文意思
运动锻炼	exercise, go shopping, go hiking, go skateboarding, play basketball, play tennis, swim, run	锻炼，购物，远足，玩滑板，打篮球，打网球，游泳，跑步
休闲活动	watch TV, read books, use the Internet, go to the movies, listen to music	看电视，读书，上网，看电影，听音乐
家务劳动	help with housework, sweep the floor, do the dishes, make the bed	做家务，扫地，洗碗，铺床
其他	go to the dentist, get up, eat vegetables, drink milk	看牙医，起床，吃蔬菜，喝牛奶

饮食健康

单词	中文意思	单词	中文意思
health	健康	unhealthy	不健康的
habit	习惯	lifestyle	生活方式
fruit	水果	vegetable	蔬菜
junk food	垃圾食品	coffee	咖啡
cola	可乐	sleep	睡眠
dentist	牙医	teeth	牙齿 (复数)

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Part 2: 核心句型与语法

核心句型：询问频率

句型： How often + do/does + 主语 + 动词原形 + ...? 回答： 频率副词 + 动词 + ...

注意： 当主语是 第三人称单数 (he, she, it, Tom, my mother 等) 时，助动词用 does，后面的动词要用 动词原形。

问答	例句
问： How often do you exercise?	问： 你多久锻炼一次？
答： I exercise every day. / I always exercise.	答： 我每天都锻炼。/ 我总是锻炼。
问： How often does he watch TV?	问： 他多久看一次电视？
答： He hardly ever watches TV.	答： 他几乎不看电视。

核心句型：谈论生活习惯

句型： 主语 + 频率副词 + 动词 + ...

• 肯定句：
  • I usually read books in the evening. (我通常晚上读书。)
  • She never eats junk food. (她从不吃垃圾食品。)
• 否定句：
  • 在 be 动词后加 not：He is not very healthy. (他不很健康。)
  • 在实义动词前加 don't/doesn't：I don't like coffee. (我不喜欢咖啡。) / He doesn't drink milk. (他不喝牛奶。)
• 一般疑问句：
  • Do/Does + 主语 + 动词原形 + ...?
  • Do you like fruit? (你喜欢水果吗？)
  • Does she play sports? (她运动吗？)

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Part 3: 重点短语与搭配

1. how often 多久一次 (询问频率)
2. how many 多少 (修饰可数名词复数)
   • How many hours do you sleep every night?
3. how much 多少 (修饰不可数名词)
   • How much coffee do you drink?
4. be good for 对……有益
   • Eating vegetables is good for your health.
5. be bad for 对……有害
   • Too much junk food is bad for you.
6. of course 当然
7. look after = take care of 照顾
   • You must look after your teeth.
8. try to do sth. 尝试做某事
   • I try to eat more vegetables.
9. the same as... 与……相同
   • My lifestyle is the same as yours.
10. different from... 与……不同
    • His lifestyle is different from mine.

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Part 4: 写作与口语应用

调查报告模板

当你调查同学的饮食习惯时,可以这样写： A Survey About My Classmates' Habits**

Last week, I did a survey about my classmates' habits. Here are the results.

• Eating Habits:
  • Most students (80%) usually eat fruit and vegetables. They think it's good for their health.
  • Some students (20%) hardly ever eat vegetables. They like junk food like hamburgers and cola, which is bad for them.
• Exercise Habits:
  • About half of the students (50%) often exercise after school. They usually play basketball or run.
  • The other half (50%) never exercise. They prefer to watch TV or play computer games.

In conclusion, a healthy lifestyle is very important. We should eat more healthy food and exercise more often.

自我介绍/谈论自己的习惯

当你想介绍自己的生活方式时,可以这样组织语言：

My Healthy Lifestyle

I have a very healthy lifestyle. I always get up early at 6:30 a.m. I usually exercise for half an hour every morning. I often eat fruit and vegetables, but I never eat junk food because it's bad for my health. I sometimes drink milk, but I hardly ever drink coffee. I like this lifestyle, and it makes me feel happy and strong.

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Part 5: 常见错误与提醒

1. 频率副词位置错误：
   • 错误： I always finish my homework. (正确)
   • 错误： I finish always my homework. (错误！)
   • 提醒： 频率副词放在实义动词前。
2. 主语是第三人称单数时，动词忘记用原形：
   • 错误： He usually exercises. (正确)
   • 错误： He usually exercises. (错误！)
   • 提醒： 有 does 的地方，动词用原形。
3. how often, how many, how much 混淆：
   • 错误： How much do you exercise? (错误，exercise 是动作)
   • 正确： How often do you exercise? (你多久锻炼一次？)
   • 错误： How many water do you drink? (错误，water 不可数)
   • 正确： How much water do you drink? (你喝多少水？)
4. be good for 和 be bad for 记反：
   • good 有益，bad 有害。

希望这份笔记能帮助你系统地掌握第一单元的知识点！加油！