冀教版九年級上冊英語 Unit5 Lesson 28 The Study of Living Things 教學(xué)設(shè)計

1、Lesson 28: The Study of Living ThingsI. Learning aims:Master the new words: Chip Taylor, biology, butterfly, migrate, fantastic, completely, grandchild, female, milkweed, chemical, puzzling II. Learning important and difficult points: 1) Fantastic facts about the butterfly have been drawing Dr. Tayl

2、ors attention.2) Here, as many as 230 million butterflies spend the winter.3) But in Mexico, people cut down the trees that the butterflies need to rest on because they want more land for farming.4) This is both puzzling and interesting for many scientists.Language Points:1. fantastic【用法】作形容詞，意為“奇異的

3、、極好的、了不起的”，在句中作定語或表語?！九e例】 = 1 * GB3 I think this is a fantastic invention. 我想這是一個了不起的發(fā)明。 = 2 * GB3 These flowers are so fantastic. They have many different colours. 這種花太奇異了。它們有很多不同的顏色。2. chemical【用法】作可數(shù)名詞，意為“化學(xué)物質(zhì)、化學(xué)制品”，復(fù)數(shù)形式是chemicals?！九e例】There are no chemicals in this kind of food. 這種食品中沒有化學(xué)物質(zhì)?！居梅ā孔?/p>

4、形容詞，意為“化學(xué)的、化學(xué)作用的”，在句中作表語或定語?！九e例】We can find chemical additives in many foods. 我們在很多食品中發(fā)現(xiàn)了化學(xué)添加劑。3. Fantastic facts about the butterfly have been drawing Dr. Taylors attention. 這些有關(guān)蝴蝶的奇異的事實引起了泰勒先生的注意?！居梅ā烤渲械膆ave been drawing 是現(xiàn)在完成進(jìn)行時，它由“助動詞 have (has) + been + 現(xiàn)在分詞”構(gòu)成，當(dāng)主語是第三人稱單數(shù)時用助動詞has，其他情況用助動詞have?，F(xiàn)

5、在完成進(jìn)行時主要表示從過去開始一直持續(xù)到現(xiàn)在的動作，這個動作是否延續(xù)下去，要根據(jù)上下文而定。它往往與表示一段時間的時間狀語連用，如：all the time, this month, all day, these few days, for a year, since a week ago等?！九e例】 = 1 * GB3 She has been playing basketball after school this week. 這個星期她放學(xué)后一直打籃球。 = 2 * GB3 Tony has been drawing in his bedroom all the afternoon. 托尼在臥室畫了一下午。4. This is both puzzling and interesting for many scientists. 對很多科學(xué)家來說這既令人費(fèi)解又很有趣。【用法】連詞bothand的意思是“和都，既也”，它可以連接句中句子成分相同的詞語，如果用它連接主語時，謂語動詞要用復(fù)數(shù)形式?！九e例】 = 1 * GB3 She likes both sports and music. 她既喜歡運(yùn)動，又