Unit 5 Understanding ideas-Grammar 同步课件2025-2026学年外研版英语八年级下册

Understanding ideas —Grammar 让教与学更加轻松 外研版（2024）八年级 下 Unit 5 Look into nature Learning Objectives Vocabulary Share and Check Grammar Homework Key Points Content 01 02 03 04 05 06 通过观察，总结宾语从句(that, if, whether)的结构与语义特征； 借助语篇填空的形式，正确使用宾语从句(that, if, whether); 通过小组合作，合理使用宾语从句描写一个自然界发现。 Learning Objectives 01 02 03 3 核心词汇：miss，Pluto，model，solar system，planet，mistake，raise questions，clear，meet，believe等。 核心语法：宾语从句(that, if, whether) Key Points Vocabulary 5 Pluto /ˈpluːtəʊ/ n. 冥王星 Example: Pluto is a dwarf planet in our solar system. 冥王星是太阳系中的一颗矮行星。 三级词汇 Pluto - The Dwarf Planet Vocabulary 1.7.2013 现在我们来学习单词Pluto，它指的是冥王星，是太阳系中的一颗矮行星。请看例句：Pluto is a dwarf planet in our solar system. 这句话的意思是冥王星是太阳系中的一颗矮行星。 ‹#› model /ˈmɒdl/ n. & v.模型；模特；模仿 Phrase: model plane (模型飞机) He made a model of the Eiffel Tower. 三级词汇 Solar System Model Vocabulary 1.7.2013 接下来我们学习单词model，它既可以作名词，也可以作动词，意思是模型、模特或模仿。例如，我们可以说He made a model of the Eiffel Tower. 这句话的意思是他做了一个埃菲尔铁塔的模型。 ‹#› solar system Meaning:太阳系 “The Earth is part of the solar system.” 地球是太阳系的一部分。 Vocabulary 1.7.2013 现在我们来学习短语solar system，它的意思是太阳系。例如，我们可以说The Earth is part of the solar system. 这句话的意思是地球是太阳系的一部分。 ‹#› planet 三级词汇 /ˈplænɪt/ n. 行星 Jupiter is the largest planet in our solar system. （木星是太阳系中最大的行星。） Saturn - A typical planet Vocabulary 1.7.2013 接下来我们学习单词planet，它的意思是行星。例如，我们可以说Jupiter is the largest planet in our solar system. 这句话的意思是木星是太阳系中最大的行星。 ‹#› mistake /mɪˈsteɪk/n. & v.错误；弄错 make a mistake(犯错误) It's easy to make a mistake. 犯错误是很容易的。 三级词汇 Vocabulary 1.7.2013 现在我们来学习单词mistake，它既可以作名词，也可以作动词，意思是错误或弄错。一个常用的短语是make a mistake，意思是犯错误。例如，我们可以说It's easy to make a mistake. 这句话的意思是犯错误是很容易的。 ‹#› raise questions Meaning:提出问题 Example:Students should raise questions in class. （学生应该在课堂上提出问题。） Vocabulary 1.7.2013 接下来我们学习短语raise questions，它的意思是提出问题。例如，我们可以说Students should raise questions in class. 这句话的意思是学生应该在课堂上提出问题。 ‹#› clear /klɪə(r)/ adj. & v.清晰的；清楚的；清除 clear up清理；放晴 The water in the lake is very clear.(湖里的水非常清澈。) 三级词汇 Vocabulary 1.7.2013 现在我们来学习单词clear，它既可以作形容词，也可以作动词，意思是清晰的、清楚的或清除。例如，我们可以说The water in the lake is very clear. 这句话的意思是湖里的水非常清澈。 ‹#› meet /miːt/ v. 遇见；满足；开会 meet a friend(遇见朋友) I will meet you at the school gate. 我会在校门口等你。 三级词汇 Vocabulary 1.7.2013 接下来我们学习动词meet，它的意思是遇见、满足或开会。例如，我们可以说I will meet you at the school gate. 这句话的意思是我会在校门口等你。 ‹#› Review and lead in 尽可能用书中的句子回答： · Did people in the past believe dinosaurs had feathers? And why? · Do people now believe dinosaurs have features? What makes them think so? Grammar Learning Observe and learn——form For hundreds of years, people believed that dinosaurs looked like huge lizards. (b) They can tell us whether dinosaurs had feathers. 这种位于主句谓语动词后由that或if/whether引导的作宾语的句子，称为“宾语从句”。 Grammar Learning Observe and learn——meaning Find more sentences like these: ① ... scientists now know that this idea is wrong. ② They also help us understand that life on earth has always changed. ③ But the find proves that it did 35 million years ago. ④ In the future, amber may also help us discover if other species have changed over time. ⑤ They can tell us whether dinosaurs had feathers. 表示肯定或陈述内容时用that引导宾语从句，that无具体含义，只做连接使用 表示“是否”这种不确定的概念时，用if或whether引导宾语从句。 Grammar Learning 16 Observe and learn——meaning Grammar Learning 17 Match a) “Is there life in outer space?” b) “Is Mr. Brown interested in insects or birds.” c) “I want to be a scientist and study plants.” A) John told his parents. B) Scientists aren’t sure. C) Emily wants to know. that whether whether Grammar Learning 18 Scientists aren’t sure if/whether there is life in outer space. John told his parents that he wanted to be a scientist and study plants. Emily wants to know if/whether Mr. Brown is interested in insects or bird. 连接词 陈述语序 Grammar Learning 19 · What are we going to read? · Who is raising a question? Who is giving a reply? · What might this passage might be about? Grammar Learning 20 第一空：Is the writer sure about the mistake about the eight planets? 第二空：Did people in the past believe that there were nine planets? 第六空：Is the Prof. Jones certain that Daniel will ask for more help? Grammar Learning 21 Most of us have been to museums. Have you ever wondered whether the things shown in museums are completely right or not? Grammar Learning 22 Write and share 1. 收集素材，头脑风暴 2. 提供语言支架 Grammar Learning 23 Write and share 3. 短文示例 What the discovery is Who made the discovery What’s amazing about it What you can learn from it （1）“发现”的表达 made an amazing discovery that, research that… (2)宾语从句的运用 Wonder if…, discovered that…, research shows that… (3)句间衔接 By doing, just like, for example… Grammar Learning 去掉省略号 24 4. 分享与互评 ① 介绍了该发现的基本信息，如：名称、相关人物等。 ② 描述了该发现的独特性或重要意义。 ③ 尽可能多地使用了本板块的核心词汇和学生用书Useful expressions中的表达。 Grammar Learning Must do: 修改、润色并最终完成课堂的文段。 Choose to do: 向 “自然之我见——我与科学家的零距离接触”栏目组投稿： 1. 礼貌提出一些你对自然界好奇的问题（使用 whether / if 引导的宾语从句）； 2. 表达一些你的对自然界的观点或猜想（使用 that 引导的宾语从句）； 3. 两项任务加起来共3-5句话即可。 Homework Thank you! 外研版（2024）八年级 下 让教与学更加轻松 $