冀教版九年级上册Lesson 28 The Study of Living Things第4课时教案
展开第四课时Lesson 28: The Study of Living Things
重点单词 | migrate v. 移居；迁徙 fantastic adj. 奇异的；了不起的；极好的 female n. 雌性的动物或植物；女子 chemical n. 化学物质 puzzling adj. 令人费解的 |
重点短语 | draw one’s attention 吸引某人注意力 as many as... 多达；和…一样多 leave for 动身去 cut down 砍倒 |
重点句子 | 1.Fantastic facts about the butterfly have been drawing Dr. Taylor’s attention. 关于蝴蝶的奇妙事实吸引了泰勒博士的注意。 2.The butterflies that return to the south are the great-great grandchildren of the butterflies that left for the north. 回到南方的蝴蝶是那些留在北方的蝴蝶的玄孙。 3.But in Mexico, people cut down the trees that the butterflies need to rest on because they want more land for farming. 但在墨西哥，人们砍伐树木，蝴蝶需要休息，因为他们想要更多的土地来耕种。 4.There are many mysteries yet to be discovered by those interested in science.对那些痴迷科学的人来说，还有很多未解之谜未被发现。 |
教学难点 | 进一步正确地运用定语从句 |
环节1 新课导入
What job do you want to do after you graduate from high school？What do you need to study to get that job？What else do you need to do？Would you like to be a biologist？Dr.Chip Taylor who is a biologist will give us a lecture.
设计意图：每个学生都有自己的梦想，当他们长大了，他们想干什么？为了实现梦想，必须在学习上付出努力，让学生明确学习目标
环节2
- Read the text to the students and explain the meaning.
- Students read the text by themselves. Give students several minutes to remember the text，let the students find out the main phrases and sentences in the text.
- Book closed. The students listen to the tape and fill in the blanks with the words they hear.
(1)Dr.Chip Taylor teaches ________ at a university.(biology)
(2)He studies one kind of North American ________.(butterfly)
(3)They lay eggs on only one plan ________.(milkweed)
- Students read the text again，do Exercise 1 in “Let’s Do It！”.
- Do Exercise 2 and Exercise 3 in “Let’s Do It！”.
- 要点点拨。
在复合句中修饰主句中的某一名词或代词的从句叫作定语从句。被定语从句修饰的名词或代词叫作先行词，通常位于定语从句之前。引导定语从句的关系代词who(whose，whom)，which，that；关系副词有when，where，why。关系代词和关系副词位于先行词和定语从句之问。定语从句的结构：先行词＋关系词＋定语从句。
设计意图：培养学生综合阅读的能力，以及语言的实际运用能力。
Unit 5 Look into Science 第四课时 Lesson 28: The Study of Living Things | |
draw one’s attention as many as... leave for cut down | 1.Fantastic facts about the butterfly have been drawing Dr. Taylor’s attention. 3.But in Mexico, people cut down the trees that the butterflies need to rest on because they want more land for farming. |
请完成本课对应训练！
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