冀教版英语九年级Unit5 Lesson28教学设计
课题
The study of living things
单元
Unit five
学科
英语
年级
九年级
学习
目标
知识目标：
1.掌握单词：biology, butterfly, migrating, fantastic, grandchildren, female, chemical
2.掌握短语：draw one’s attention, return to…, as many as, lay eggs
能力目标：学会运用单词及短语，掌握定语从句。
情感目标：与学生们合作互动，了解关于大自然生物的知识。
重点
1.掌握重点单词：biology, butterfly, migrating, fantastic, completely, grandchildren, female, chemical.
2.掌握短语：draw one’s attention, return to…, as many as, lay eggs
难点
初步了解并掌握定语从句的基本知识点，通过练习直至熟练运用。
教学过程
教学环节
教师活动
学生活动
设计意图
导入新课
Lead-in
Free talk: Think about it!
1.Would you like to be a biologist when you grow up? Why or why not?
2.Show some pictures of butterflies.
Ask students:What do you know about them?
同学们每两个人一组讨论问题并举手回答问题。
引入本课主要话题，让同学们初步了解本课所讨论的基本问题，激发同学们对本堂课的学习兴趣。
讲授新课
Presentation
1.Explain the new words：biology, butterfly, migrating, fantastic, grandchildren, female, chemical。
讲解新单词并带领学生大声朗读直至朗读熟练。
2.Show some butterflies and ask students: are they beautiful?
Then read the lesson by themselves.
3.Complete the table on page 73.
4.Explain the language points:
1)have been doing sth.
2)as…as… 像......一样
否定形式：not as/so... as...
3)spend: 度过，花(钱/时间)”
过去式和过去分词都是spent。
spend time/money(in) doing sth.
spend time/money on sth.
spend time with sb.
5.Grammar:attributive clause
Practice: Exercise 2 on page 73.
6.Pair work.
7.Practice
8.Summary
9.Homework
Write an article about“butterflies”.
通过图片及相关知识学习新单词。
通过朗读课文，了解文章大意，在文中找到老师答案完成表格。
朗读课文结束之后，学生用笔勾画出自己认为的本节课的重点和难点，做好笔记。
学习状语从句并做练习。
小组活动练习状语从句。
综合练习，巩固本课时的重点知识。
掌握单词的拼读及用法。。
让学生以阅读理解的形式来体会课文的主题以及主要内容。
教师引导学生找出本课的重点短语和句型，进行讲解 , 扫清了学生理解文章的障碍。
让学生能抓住文中重点词汇，善于归纳。
学习并巩固状语从句的知识点。了解考查的角度及方式。
通过较有趣的方式巩固状语从句的知识点记忆更牢固。
综合掌握本节课的重点知识。
课堂小结
1.本节课所学的重点单词句式要熟练掌握并学会熟练应用.
2.了解文中介绍的关于生物学的知识，让学生们关爱小动物，珍爱大自然。
3.学会熟练运用状语从句，在考试中轻松应答。
板书
Lesson28:
New words:
biology, butterfly, migrating, fantastic, completely, grandchildren, female, chemical。
New sentences and phrases ：
1..have been doing sth.
2.as…as…
3.spend time/money(in) doing sth.
spend time/money on sth.
spend time with sb.
4.lay eggs
cut down
pay attention to sth.
catch one’s attention
Lesson 28 The Study of Living Things 习题
一、汉译英。
1.在大学 _________________________________
2.返回 _________________________________
3.产卵 _________________________________
4.砍树 _________________________________
5.保护森林________________________________
二、根据句意，从括号中选择正确的动词填空。
1.He _______(study、studies) one kind of North American butterfly.
2.Fantastic facts about the butterfly_________(have been drawing、have drawn) Dr.tayor’s attention.
3.They can_________(cover、covered) some trees almost completely.
4.The United States and Canada have encouraged farmers______(to use、use) less chemicals.
5. There are many mysteries yet to________(be discovered、discovered) by those interested in science.
三、用方框中所给单词或短语的适当形式填空。
fantastic, lay，butterfly ，draw one's attention, return to
1.The hen___ about 300 eggs last year.
2.She often has some_______ideas.
3. Our English teacher Miss Miller will ______ Canada next week.
4. saw some ___________flying up and down among the flowers.
5. When we were in the airport,I saw my father waving his hand to ________
四、单项选择。
( )1.Roald Dahl was?a?great?children's?writer.?His?dark?past helped?him?paint?a?picture________
was?different?to?most?other?writers.
A.that B.who C.I D.whom ( )2.People?have ______too?many?trees?to?make?desks,?chairs,?chopsticks and?so?on. A.cut up? B.cut?down C.put up? D.put?off
( )3.______ 100 people were killed in the air crash.
A. As little as B. As much as C.As many as D.As more as
( )4.—Jack, did you find our old school yesterday?—Yes, but with police's help, for it ______ changed over these years.
A.hardly B. partly C.completely D. never
翻译句子。
这使得泰勒博士非常担忧。
他研究一种北美蝴蝶。
多达两亿三千万只蝴蝶在这过冬。
美国和加拿大已经鼓励农民少用化学物质。
当它们在春天开始向北迁徙时，雌鱼就会产卵。
答案
一、汉译英。
1.at a university 2.return to
3.lay eggs 4.cut down the trees 5.protect forests
二、根据句意，从括号中选择正确的动词填空。
1.studies 2.have been drawing
3.cover 4.to use 5. be discovered
四、单项选择。
ABCA
五、翻译句子。
1.This worries Dr.Tayor a lot.
2.He studies one kind of North American butterfly.
3.Here,as many as 230 million butterflies spend the winter.
4.The United States and Canada have encouraged farmers to use less chemicals.
5.When they begin to travel north in spring, the females lay eggs.
课件36张PPT。Unit 5 Look into science
Lesson 28 The study of living things冀教版 九年级Lead-inWould you like to be a biologist when you grow up?
Why or why not?Free talk: Think about it!Charles Robert DarwinFounder of the theory of evolution
生物进化论的奠基人Father of modern genetics
现代遗传学之父Gregor Johann MendelLead-inLead-inJames Dewey WatsonAmerican molecular biologist现代生物学分类命名的奠基人The founder of classification and
nomenclature in modern biologyCarl von Linné美国分子生物学家Lead-inWhat do you know about them?New Wordsbiology /ba?'ɑl?d?i/n.生物学e.g. He teachs biology at a uuiversity in China.New Wordsbutterfly /b?t?fla?/n. 蝴蝶e.g.This butterfly travels about 4000 kilometres south in fall.New Wordsmigrate/ 'ma?,gret/v. 迁移，移往e.g. The river's catchment is a key transit point for migrating birds.New Wordsfantastic/f?n't?st?k/adj. 奇异的；极好的；不可思议的e.g. She's doing a fantastic job.New Wordsgrandchildren/'gr?n't??ldr?n/n. 孙子；孙（女），外孙（女）e.g. You do not hit my grandchildren, do you understand?New Wordsfemale/'fi?me?l/adj. 女性的；雌性的；柔弱的e.g. When they begin to travel north in spring ,the females lay eggs. New Wordschemical/'kem?k(?)l/n. 化学制品，化学药品
adj. 化学的e.g. Farmers use chemicals that kill milkweed. 不可思议的Quick eyes蝴蝶迁移化学的柔弱的Reading Dr.Chip Taylor teaches biology at a university in the United States. He studies one kind of North American butterfly. Just like a migrating bird, this butterfly travels about 4000 kilometres south in fall.Fantastic facts about the butterfly have been drawing Dr.tayor’s attention. In Mexico, the butterflies always return to the same small piece of forest, which is only 20 kilometres wide.Here,as many as 230 million butterflies spend the winter.They can cover some trees almost completely.The butterflies that return to the south are the great-great grandchildren of the butterflies that left for the north.When they begin to travel north in spring, the females lay eggs. They lay eggs on only one plant:milkweed.Reading But in Mexico, people cut down the trees that the butterflies need to rest on beacause they want more land for farming. In the United States and Canada, farmers use chemicals that kill milkweed. This worries Dr.Tayor a lot.
Now things are improving. Mexico has begun to protect parts of its forests. The United States and Canada have encouraged farmers to use less chemicals.Reading Scientists still don’t understand how: he butterflies know when to fly south. If they are even a few days late,they will freeze.And how do all the great-great grandchildren find the same foeest in Mexico every year? This is both puzzling and interesting for many scientists.
There are many mysteries yet to be discovered by those interested in science. Would you like to study biology?ReadingPracticeRead the lesson and complete the table.returnspendlayrestkillfindLanguage points1.Fantastic facts about the butterfly have been drawing Dr.taylor 's attention 现在完成进行时构成:主语+助动词(have/has)+been+动词的现在分词+其他成分。表示动作从某一时间开始，一直持续到现在，或者刚刚终止，或者可能仍然要继续下去。Language points2.Fantastic facts about the butterfly have been drawing Dr.taylor 's attention drawing one's attention 意为“引起某人的注意”，
与call one's attention 同义。
此处attention用作不可数名词，意为“注意，留心”。e.g.The facts drew some people attention. Language points3.Here ,as many as 230 millon butterflies spend the winter.as many as 意为“多达......”e.g.There are many as 3000 as students in our school.否定形式：not as/so... as...Language points4.Here,as many as 230 million butterflies spend the winter.spend:度过，花(钱/时间)
过去式和过去分词都是spent。
相关短语：spend time/money(in) doing sth.
spend time/money on sth.
spend time with sb.e.g. Well, I spend a lot of time watching movies.Language points5.短语：
lay eggs 产卵 6.cut down 砍伐Cut down砍伐,减少,压缩,杀死,伤害
Cut in打断,插嘴,插入,超车,抢挡
Cut off切去,剪掉,中断,隔离,使死亡
Cut out删去,裁剪,放弃,戒除,出故障
Cut up切碎,使悲伤,受伤,攻击GrammarAttributive clause定语从句:一个句子跟在一名词或代词(先行词)后进行修饰限定。关系代词所代替的先行词是人或物的名词或代词，并在句中充当主语、宾语、定语等成分。GrammarAttributive clause1)who, whom, that
Is he the man who/that wants to see you?
(who/that在从句中作主语)
He is the man whom/ that I saw yesterday.
(whom/that在从句中作宾语)GrammarAttributive clause2) Whose 用来指人或物，(只用作定语, 若指物，它还可以同of which互换)
They rushed over to help the man whose car had broken down.
Please pass me the book whose (of which) cover is green.GrammarAttributive clause3)which, that
它们所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等
A prosperity which / that had never been seen before appears in the countryside.(which / that在从句中作主语)
The package which / that you are carrying is about to come unwrapped.(which / that 在从句中作宾语)ExerciseExample:
We did some experiments yesterday. The experiments were fantastie.Theexperiments that we did yesterday were fantastic.1.I asked him to mail the letter. I wrote the letter to my cousin.
I asked him to mail the letter that/which/不填 I wrote to my cousin.Exercise2.Yesterday I met a boy. The boy is a new member in our art club.Yesterdau I met a bou who/that is a new member in our art club.3. Mary was carrying a bag. The bag cost her a lot of money.
Mary was carrying a bag that/which cost her a lot of money.4. Football is a team sport. Football is popular all over the world.
Football is a team sport that/which is popular all over the world.Pair work
Task tips: Eachgroup should prepare some pieces of paper and divide theminto threecolumns. Student A writes a person's name in the first column, foldsthe paper and passes it to Student B. Student B writes a statement begianingwith“who", folds the paper and passes it to Student C. Student C must finishthe sentence and read it out loud.
Example: Work in groups of three to play a game.Mr. Brownwho is a biologistwill give us a talkABCPractice一、汉译英。
1.在大学 _________________________________
2.返回 _________________________________
3.产卵 _________________________________
4.砍树 _________________________________
5.保护森林________________________________at a universityreturn tocut down the treesprotect forestslay eggs
Practice二、根据句意，从括号中选择正确的动词填空。
1.He _______(study、studies) one kind of North American butterfly.
2.Fantastic facts about the butterfly___________________(have been drawing、have drawn) Dr.tayor’s attention.
3.They can_________(cover、covered) some trees almost completely.
4.The United States and Canada have encouraged farmers______(to use、use) less chemicals.
5. There are many mysteries yet to______________(be discovered、discovered) by those interested in science.studieshave been drawingcoverto usebe discoveredSummaryWords:
biology, butterfly, migrating, fantastic, grandchildren, female, chemical
Phrases:
have been doing,draw one's attention, as many as, lay eggs,spend,cut downHomeworkWrite an article about“butterflies”.谢谢21世纪教育网（www.21cnjy.com) 中小学教育资源网站 有大把高质量资料？一线教师？一线教研员？
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