七年级下册英语Unit 7核心知识点是什么？

单元核心主题与目标

• 核心主题: 天气与活动
• 学习目标:
  1. 掌握核心词汇: 能够听、说、读、写关于天气的词汇。
  2. 掌握核心句型: 熟练运用现在进行时来描述“某人正在做某事”。
  3. 情景应用: 能够根据不同的天气状况,谈论并描述人们正在进行的相应活动。
  4. 文化了解: 了解不同国家和地区的天气差异。

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核心词汇

天气词汇

这是本单元最重要的词汇,必须熟练掌握。

英语	中文	例句
sunny	晴朗的	It's sunny today. 今天天气晴朗。
cloudy	多云的	It's a cloudy day. 今天是个多云天。
rainy	下雨的	It's rainy. Be careful! 天在下雨，小心点！
windy	刮风的	It's very windy outside. 外面风很大。
snowy	下雪的	It's snowy in winter. 冬天会下雪。
weather	天气	How's the weather? 天气怎么样？

动词短语 (用于描述活动)

这些短语通常和现在进行时连用。

英语	中文	例句
playing basketball	打篮球	They are playing basketball. 他们正在打篮球。
studying	学习	He is studying in the library. 他正在图书馆学习。
cooking	烹饪	My mother is cooking in the kitchen. 我妈妈正在厨房做饭。
watching TV	看电视	I am watching TV at home. 我正在家看电视。
cleaning	打扫	She is cleaning her room. 她正在打扫她的房间。
reading a book	看书	He is reading a book in his room. 他正在他的房间里看书。
talking on the phone	打电话	She is talking on the phone. 她正在打电话。
shopping	购物	They are shopping at the mall. 他们正在商场购物。
playing computer games	玩电脑游戏	My brother is playing computer games. 我弟弟正在玩电脑游戏。
exercising	锻炼	He is exercising in the park. 他正在公园里锻炼。

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核心语法：现在进行时

这是本单元的语法重点。

用法

主要用来描述说话时正在发生的动作或现阶段正在发生的动作，关键词是 now (, look (看), listen (听)。

构成

主语 + be动词 + 动词的-ing形式 + 其他.

• be动词的选择:

  
  （图片来源网络，侵删）
  • I am
  • He/She/It is
  • You/We/They are

• 动词-ing形式的构成规则:

  1. 一般直接加 -ing:
     • do → doing
     • play → playing
     • work → working
  2. 以不发音的 e 去 e 加 -ing:
     • make → making
     • write → writing
     • dance → dancing
  3. 重读闭音节结尾，且末尾只有一个辅音字母，双写该辅音字母再加 -ing:
     • run → running
     • swim → swimming
     • sit → sitting
  4. 以 ie 变 ie 为 y 再加 -ing:
     • lie → lying
     • die → dying

句型转换

• 肯定句: He is reading a book.
• 否定句: He is not reading a book. (缩写: He isn't reading a book.)
• 一般疑问句: Is he reading a book?
• 肯定回答: Yes, he is.
• 否定回答: No, he isn't.
• 特殊疑问句: What is he doing?

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核心句型与交际用语

询问天气

• A: How's the weather? / What's the weather like? (天气怎么样？)
• B: It's sunny/rainy/cloudy... (天晴/下雨/多云...)

描述某地天气

• It's sunny in Beijing. (北京天气晴朗。)
• It's raining in Shanghai. (上海正在下雨。)

询问并回答某人正在做什么

• A: What are you doing? (你正在做什么？)
• B: I'm watching TV. (我正在看电视。)
• A: What is he/she doing? (他/她正在做什么？)
• B: He/She is playing basketball. (他/她正在打篮球。)
• A: What are they doing? (他们正在做什么？)
• B: They are shopping. (他们正在购物。)

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课文与对话重点解析

本单元会有一个或多个关于不同城市天气的对话。

A: Hi, how's the weather in Beijing? B: It's sunny. What about Shanghai? A: It's cloudy. Oh, look! It's starting to rain. B: Really? What are your friends doing? A: My friend Jim is playing computer games at home. And my sister Lucy is reading a book in her room. B: It's very hot here. I'm drinking some water.

（图片来源网络，侵删）

重点解析:

1. How's the weather in Beijing? 询问北京天气。
2. What about...? ……怎么样？（用来询问另一件事或另一个地方）
3. It's starting to rain. 天开始下雨了。 (start to do sth. 开始做某事)
4. What are your friends doing? 询问朋友们正在做什么。
5. 回答时使用 主语 + is/are + doing... 的结构。

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单元小结与学习建议

1. 词汇是基础: 务必背熟所有天气词汇和动词短语，可以制作单词卡片,正反面写英文和中文。
2. 语法是核心: 现在进行时是重点，多做一些动词变-ing的练习，并尝试用不同的人称（I, you, he, she, they）造句。
3. 情景是关键: 把学到的词汇和句子放到具体情景中去理解和记忆，看到下雨的图片，就立刻想到 It's rainy. 和 People are staying at home.。
4. 多听多读: 反复听课本录音，模仿语音语调，可以尝试和同学进行角色扮演,用本单元的句型进行对话练习。
5. 写作练习: 尝试写一篇小短文，描述一下你和你家人在不同天气里正在做的事情。

   Today is Sunday. The weather is sunny and warm. My father is reading a newspaper in the garden. My mother is cooking in the kitchen. I am playing with my dog outside. We are very happy.

希望这份详细的梳理对你的学习有帮助！加油！