Unit 5 Lesson 29 DNA—The Story of You 学案 2023-2024学年初中英语冀教版九年级全一册

Unit 5 Lesson 29 DNA—The Story of You 【学习目标】 1.通过基础练习,能记住并正确使用本课时的重点单词和重点短语。 2.通过有效地呈现本课时内容,能够理解课文内容并回答课后的问题。 3.通过小组合作活动,能够用英语向他人介绍自己所知道的有关DNA的知识。 【预习导学】 一、单词速记 1.脱氧核糖核酸　 　  2.蓝图　 　  3.一般的;普遍的　 　  4.复杂的　 　  5.双胞胎之一　 　  6.重复;复述;背诵　 　  7.模式;形式　 　  8.确认;鉴别　 　  9.有关的;相关的　 　  10.孙子;外孙　 　  11.孙女;外孙女　 　  12.指示;说明　 　  二、短语速记 1.in general 2.except for 3.become sick 4.be able to 5.例如 6.和……相同的…… 7.与……相关 8.数十亿计的;大量 三、想一想 1.文中介绍了什么是DNA? ______________________________________________________________ 2.科学家们可以通过你的DNA鉴别什么? ______________________________________________________________ 【答案】 一、 1.DNA　2.blueprint　3.general　4.complex　5.twin 6.repeat　7.pattern　8.identify　9.related　10.grandson　11.granddaughter　12.instruction 二、 1.一般而言;通常 2.除……之外 3.生病 4.会;能 5.for example 6.the same...as 7.be related to 8.billions of 三、 1.DNA is the blueprint of life. 2.From your DNA, scientists can identify not only you, but also people who are related to you. 【合作探究】 任务驱动一 单词、短语大闯关 1.齐读本课重点单词和短语。 2.用方框内所给单词的适当形式填空。 instruction　twin　repeat　grandson　general (1)Lucy and Lily are 　 　. They look the same.  (2)Read the 　 　 before using the new phone.  (3)These difficulties are 　 　 among people of his age.  (4)I can't follow you, Tony. Please 　 　 the sentence.  (5)The little boy is Mr. King's 　 　.  3.Show Let's Do It! 2. Fill in the blanks with the phrases in the box. in general　except for　not only...but also related to　even if　the same...as (1)Your homework is quite good 　 　 a few spelling mistakes.  (2)　 　 the young 　 　 the old like pop music.  (3)Kate's hair is 　 　 colour 　 　 her sister's.  (4)　 　, women live longer than men.  (5)　 　 many difficulties remain, we can overcome them.  (6)Is wealth 　 　 happiness?  任务驱动二 听力训练 1.Listen to the lesson and fill in the blanks. (1)　 　 for some twins, every living thing has its o