冀教版九年級英語上Lesson29導(dǎo)學(xué)案

1、陜飛二中九年級(上)英語導(dǎo)學(xué)案 班級 姓名 科目English課題Lesson 29 DNA-The Story of You課型New lesson主備人Ms. Yu審核人Ms. Li授課人授課時間2014-11-學(xué) 習(xí) 目 標(biāo)知識與能力：1.掌握詞匯：general, repeat, grandson, granddaughter, instruction2.接觸詞匯：DNA, blueprint, complex, twin, pattern, identify, related3.掌握in general, except for, be related to的相關(guān)用法。過程與方法：通過

2、自主學(xué)習(xí)完成相應(yīng)任務(wù)，提出質(zhì)疑并在課堂上大膽探究、積極交流，鞏固當(dāng)堂知識，反饋學(xué)情。情感態(tài)度和價值觀：熱愛科學(xué)，探索科學(xué)重點(diǎn)掌握in general, except for, be related to的相關(guān)用法。難點(diǎn) How to understand the text well and be interested in science.學(xué) 習(xí) 流 程預(yù)習(xí)指導(dǎo)：1.根據(jù)單詞表上所給音標(biāo)，拼讀本課新單詞。2.完成THINK ABOUT IT!部分兩個思考題。3.閱讀課文，把握課文信息，回答問題。(Student Book, Ex. 1 on Page 75)4.再讀課文，在文中勾畫出重點(diǎn)單詞、

3、短語和句子，并結(jié)合語境猜測其含義。（1）短語從課文中找到下列短語： 把放（安裝）在一起 生命的藍(lán)圖 生物 更復(fù)雜 數(shù)百萬年 出生 健康問題 不僅而且 尋找 例如 和一樣的 （2）句子結(jié)合上下文翻譯下列句子：1. It takes millions of years for nature the DNA in living things them the world .對于自然界來說，要花費(fèi)數(shù)百萬年時間來改變生物的DNA以使他們適應(yīng)它們生存的世界。2. your feet? 你的腳多大？ 3. All these things strongly your DNA before you are b

4、orn! 所有這些事情在你出生之前就深受DNA的影響。4. Some health problems can by problems in your DNA.有些健康問題是由你的DNA中存在的問題引起的。5. , scientists might change your DNA.將來，科學(xué)家們可能會改變你的DNA。6. There are your DNA in your body.你的身體的每個部分都有你的DNA的復(fù)制品。7. You have unique DNA, but it your parents DNA. 你有你自己獨(dú)特的DNA，但它復(fù)制了你父母的DNA的模式。8. Its th

5、ings .它是地球上最令人吃驚的事情之一。自主/合作探究：1. In general, a blueprint is a drawing that shows how to put a house together with many different parts. in general意思是“一般而言；總的來說”，通常置于句首。也可用generally speaking來表示。 e.g.) In general / Generally speaking, women like to shop for new clothes. 翻譯：總的來說，你的想法是對的。 2. But buildin

6、g a living thing is far more complex than building a house. complex意為 ，其比較級為 ，最高級為 。 e.g.) This is a complex sentence. e.g.) What she said was too complex for me to understand. far在本句中用來修飾比較級，這樣的詞還有 , a little, a bit, a lot, still, even等。 e.g.) She looks even younger than before.她看起來甚至比以前還年輕。 e.g.)

7、This train runs faster than that one.這輛火車比那輛快得多。 3. Except for some twins, every living thing has its own unique DNA. except for“除之外”，排除的不是同類，主要用于說明整體情況后，對細(xì)節(jié)加以修正。 e.g.) Your composition is quite good except for a few spelling mistakes. e.g.) The bus is empty except for an old lady. 【鏈接】你還記得besides,

8、except和but的用法區(qū)別嗎？寫寫吧。 besides- except- but- 練習(xí)：用besides, except, except for和but填空： We all went there him. He is a good man hot temper(脾氣暴躁). I have two other pens this one. There is nothing a chair in the room.4. From your DNA, scientists can identify not only you, but also people who are related to you. be related to意為“和有聯(lián)系；與有關(guān)；與有親戚/血緣關(guān)系”。其中，related為adj.,意思是“有關(guān)的，相關(guān)的”。 e.g.) He is related to my family. e.g.) His illness is related to his bad eating habit. 【拓展】relate為動詞，常與to或with搭配，表示“把聯(lián)系起來”。 I cant what he