【精校版】人教版必修3導(dǎo)學(xué)案：unit 4 language points教師版

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1、人教版精品英語資料（精校版） 第 課時(shí) 課題名稱 時(shí)間 第 周 星期 課型 Language points 主備課人 目標(biāo) Knowledge aims: Learn useful words and expressions Ability aims: Use the useful words and expressions correctly. 重點(diǎn) Master the usage of the key words and expressions. 二次備課 難點(diǎn) Master the sentence patterns: Th

2、is produced a chain reaction, which made it possible for life to develop 自 主 學(xué) 習(xí) 在課文中找出下列句子 1. 沒有人確切地知道地球是怎樣開始的，因?yàn)樗l(fā)生在很久以前。 2. 地球變得如此動(dòng)蕩激烈以至于不知道這個(gè)固體形狀是否會(huì)繼續(xù)存在下去。 3. 更重要的是當(dāng)?shù)厍蚶鋮s下來，水就出現(xiàn)在其表面。 4. 這就產(chǎn)生了一個(gè)連鎖反應(yīng)，是生命的發(fā)展成為可能。 問題生成記錄： 精 講 互 動(dòng) 1.Because the atmosphere can hold some heat

3、 from the sun, otherwise the earth would be too cold to live on at night. atmosphere詞性：_____________ 詞義：_____________ There is always a friendly atmosphere in my family when we get together. atmosphere詞性：_____________ 詞義：_____________ 2.Water had also appeared on other planets like Mars, but

4、unlike the earth, it had disappeared later. 【歸納】unlike詞性：_____________ 詞義：_____________ They are both teachers. Apart from this, they are quite unlike. 【歸納】unlike詞性：_____________ 詞義：_____________ 3.It is harmful to your eyes to read in the sun. 【歸納】be harmful to=do harm to

5、 【拓展】I mean no harm.翻譯: We will not do anything that harm the cause of peace.翻譯： 1. Don’t be silly, such a thing does not exist. 【歸納】exist詞性：_____________ 詞義：___________________ 【用法】Fish can not exist without water

6、. 【拓展】existence n. 詞義：_______________ come into existence,產(chǎn)生，開始存在 in existence,現(xiàn)存的 5.How the earth came into being is still a puzzle to us. puzzle詞性：_____________ 詞義：__________________ What puzzles me most is why some students are so silent in class. puzzle詞性：_____________ 詞義：___

7、_______________ 【拓展】 puzzling 詞義：__________________ puzzled詞義：__________________ 6.in time 【用法】The police came in time, so the accident was stopped. 【用法】You will succeed in time if you keep on working hard. 【歸納】in time 詞義_____________ 7.Because they gave birth to young baby a

8、nimals and produced milk to feed them. 【歸納】give birth to詞義_____________ 【用法】This accident gave birth to the beginning of the war. 【歸納】give birth to詞義_____________ 8. in one’s turn詞義_____________ Thus they have, in their turn, become the most important animals on the planet. in turn, 詞義_____

9、________ take turns to do sth 詞義_____________ by turns 詞義_____________ It’s one’s turn to do sth 詞義_____________ 9.prevent…from 【例句】…, which prevents heat from escaping from the into space. prevent…from 詞義 【拓展】寫出其同義短語 10…make it possible for life to develop make it (形式賓語)for sb to do sth(真正的賓語) 翻譯：高科技使人類登上火星成為可能。 達(dá) 標(biāo) 訓(xùn) 練 單項(xiàng)填空 作業(yè) 反思 板書 設(shè)計(jì)