Unit 5 Look into Science Unit View-【绿卡初中创新题】2025-2026学年九年级上册英语同步教案(冀教版)河北专版

Unit 5 Look into Science 课时 Unit Review 课型 新授课 教学目标 1. 知识目标 掌握本单元新学的单词、短语和句型； 掌握本单元的语法：定语从句。 2. 能力目标 (1)能听懂有关谈论科学的内容； (2)能描述实验过程，并能谈论科学对我们日常生活的影响。 3. 情感目标 尊重事实，尊重科学，能用科学的思维解释生活中的现象。 教学重点 掌握本单元的语法：定语从句。 教学难点 能描述实验过程，并能谈论科学对我们日常生活的影响。 教学准备 PPT 课件；课文音频。 教 学 过 程 Step 1 Free talk Show the class pictures and get the class to talk about how the inventions affect our everyday life. Step 2 Review 1. Review the important words learnt in this unit by playing a game. Make the words flash on the screen and get the class to read and translate them. 2. Review the important phrases. Get the class to translate the following phrases into English. ( turn …upside down/turn … over pour out scientific method take …off use up be made up of at night even if in general except for be related to billions of push up/push down in place ) ( 把 …… 翻转；倒过来 涌出 科学方法 把 …… 拿开 用光；用完 由 …… 组成 在夜间，在晚上 即使；纵然 一般而言；通常 除 …… 之外 与 …… 相关 数十亿计的；大量的 向上推/向下按 原地；在适当的位置 ) Step 3 Building Your Vocabulary Fill in the blanks with the correct forms of the words in the box. force　method　correct　unless　discovery　repeat　double　everyday 1. The teacher asked the students to circle the _________ answers. 2. I think it is a new ________of solving the problem. 3. The metal is not a new _________ —— people have known about it for years. 4. He didn’t know what could hit him with such _________. 5. Retelling her experiences is part of her _________ life. 6. It has the __________ advantages of being both easy and cheap. 7. You can never play well _________ you practice more. 8. She kept _________ the words over and over again. Answers: 1. correct 2. method 3. discovery 4. force 5. everyday 6. double 7. unless 8. repeating Step 4 Grammar 1. Introduction Show the class two sentences and get them to join them together. And explain how to join them together. Then tell the class what the attributive clauses are. 2. Explanation 定语从句 (1)概念 定语从句：在复合句中，修饰某一名词或代词作定语的从句。 关系词：引导定语从句的词。 先行词：被定语从句修饰的名词或代词。 (2)关系词 ①分类 引导定语从句的关系词有关系代词和关系副词，常见的关系代词有：that, which, who, whom, whose 等，常见的关系副词有：where，when，why等。 ②作用 关系词在句中有三个方面的作用： a. 连接作用：连接先行词和定语从句 b.成分作用：关系词在定语从句中作句子成分 c.指代作用：关系词所指代的内容就是先行词 (3)关系词的用法 that既可用于指人，也可用于指物。 在定语从句中可作主语或宾语，作主语时不可省略，作宾语时可省略。 Tom likes music that is quiet and gentle. 物 主语 This is the man that I want to help. 人 宾语(可省) which用于指物。 在定语从句中可作主语或宾语，作主语时不可省略，作宾语时可省略。 The tree which is from Africa is very tall and valuable. 物 主语 I like the computer which I bought yesterday. 物 宾语(可省) who、whom用于指人。 who用作主语，whom用作宾语。在口语中，有时可用who代替whom。 All of us believe in the boy who never tells lies. 人 主语 The boy whom/who I met yesterday is my good friend. 人 宾语 (4)that与which的区别 ①先行词为物，只用that的情况: a.先行词被序数词或形容词最高级修饰时 Journey to the West is the most interesting TV play that I have watched. 《西游记》是我看过的最有趣的电视剧。 b.先行词是不定代词时 Is there anything that I can eat? 有我能吃的东西吗？ c.先行词被 the only, the very, the same, the last 等词修饰时 This is the same watch that I lost. 这就是我丢失的那块手表。 【注意】 下列两种情况也只能用that。 a.先行词里同时含有人或物时。 He can remember the persons and pictures that he saw in the room. 他能记得他在那个房间里看到的人和照片。 b. 主句是以who或which开头的特殊疑问句时。 Who is the boy that is crying? 正在哭泣的那个男孩是谁？ ②先行词指物,只用which的情况: a. 先行词为that，those等时 What’s that which under the desk? 书桌下面的东西是什么？ b. 关系代词前有介词时 This is the classroom in which we studied last year. 这就是我们去年在里面学习的那间教室。 (5)主谓一致问题 当关系代词在从句中作主语时，从句谓语动词的单复数形式应与先行词的单复数形式保持一致。 My friends love the songs that have great lyrics. 我的朋友们喜欢歌词很棒的歌曲。 It is a song that has great lyrics.那是一首歌词很棒的歌曲。 Step 5 Grammar in use I. Circle the correct relative pronouns. 1. Have you ever spoken to the people (who/which) live next door? 2. Here is the book (who/that) you were looking for. 3. There is a program on TV (that/what) you might like. 4. What is the name of that woman (who/whom) just came in? 5. The girl to (who/whom) the teacher is talking is my younger sister. 6. Here are the pens (which/who) I bought yesterday. Answers: 1. who 2. that 3. that 4.who 5. whom 6. which II. Combine the sentences to make attributive clauses. 1. I have a friend. My friend enjoys listening to music. _______________________________________________ 2. This is the boy. The boy won the singing competition. _______________________________________________ 3. The book is very interesting. Li Ming lent me the book. ________________________________________________ 4. Brian gave me a bag. The bag was full of books. _______________________________________________ 5. I’ll show you around the park. I like the park best. _______________________________________________ Answers: 1. I have a friend who/that enjoys listening to music. 2. This is the boy who/that won the singing competition. 3. The book (which/that) Li Ming lent me is very interesting. 4. Brian gave me a bag that/which was full of books. 5. I’ll show you around the park (that/which) I like best. Step 6 Listening Listen to the passage and put the sentences in the correct order. □Students also learn the right scientific attitude— a respect for truth. □They do experiments in the lab. □Later, they discuss problems with their teachers and classmates. □In science classes, students learn about scientific research and methods. □How do students learn science in school? □They study theories and methods in textbooks. □Science classes are important for high school students. Answers: 3 6 7 2 4 5 1 Step 7 Putting It All Together Complete the experiment instructions with the questions in the box. ( A. What else can you do? B. What do you do? C. What do you need? D. What is happening? ) Answers: CBDA Step 8 Reading Get the class to read the passage and answer the following questions. 1. What are the meanings of the words cornstarch and dissolve? 2. How many steps do we do in this experiment? 3. How much water do we need in this experiment? 4. Does cornstarch dissolve in water? Answers: 1. cornstarch 玉米淀粉; dissolve 溶解 2. Five steps. 3. Four to five spoonfuls of water. 4. No, it doesn’t. Step 9 Self-Evaluation Get the class to find more examples from this unit. Then mark your stars. Ⅰ. Talking about Science Scientific discoveries are making our lives better and better. ________________________________________________ ________________________________________________ ________________________________________________ I know how to express thoughts about science in English. ☆ ☆ ☆ ☆ ☆ Ⅱ. Attributive Clause The butterflies that return to the south are the great-great grandchildren of the butterflies that left for the north. _____________________________________________ _____________________________________________ _____________________________________________ I can use attributive clauses properly. ☆ ☆ ☆ ☆ ☆ Answers: (possible) I. Scientists are doing so many new things with DNA. We have discovered that the air pressure helps the cardboard hold the water in the jar. II. In general, a blueprint is a drawing that shows how to put a house together with many different parts. Step 10 Summary Sum up what we’ve learnt in this period with the class. 1. 掌握本单元新学的单词、短语和句型； 2. 定语从句； 3. 本单元的交际用语。 课堂作业 1. Remember the new words and expressions learnt in UNIT 5. 2. Review attributive clause. 3. Preview Lesson 31. 板书设计 UNIT 5 Look into Science Unit Review 定语从句 关系词 先行词 that which who，whom 学科网（北京）股份有限公司 $$