一. 说教材(Textbook)

　　在人教版高一英语的下册的Unit 19，曾经谈论过一些关于农业的话题，学生对中国早期的出名的农业家贾思勰有了一定的了解。人教版高三英语的Unit 4这个单元以Green World 为话题，让学生初步了解一些植物学方面的内容，如植物的分类、栽培以及植物学的发展的历程等等；语言技能和很多的语言点几乎都是围绕介绍绿色世界这一中心话题而展开的。要求学生能够运用所学的内容对相关话题进行流利的表述。

　　在READING部分，介绍了植物学正式成为一门科学的历史形成过程。重点介绍了两个为植物学发展做出过卓越贡献的重要人物林厄尼斯与班克斯。他们以独特的归类的方式对植物进行分类，从而征服了整个世界。

　　在POST-READING 部分，针对READING部分的相关内容设计了5个练习。第1个练习以选择填空的形式考查学生对课文细节内容的了解。第2-5小题以问句的形式进一步考查学生对课文重点内容的了解。

二．说教学目标（Teaching goals）

1.让学生了解植物这一学科的形成，并了解一个学科的形成需要经过漫长的时间及几代的科学家的努力和奋斗。

2.使学生了解科学家为科学事业所作的努力及其奋斗精神。

3.培养学生查找细节，分析主题从而提高学生的阅读理解能力。

4.学习一些有用的词汇和短语。

5.加深对阅读技巧（Scanning and skimming method）的理解及运用。

1. Target language语言目标

1).Learn some important words and phrases(学习一些有用的词汇和短语)

merely, classify, identification, male, promote, botanical, privilege, cosy, wealth, expense reward, appetite output, accumulate, abandon, distinguish, appoint, calculate , astronomy, enterprise, settlement, abandon, on a large scale, look out for

2). Learn some important sentences(学习一些重要句子)

A. Attempts had been made by others to classify plant species into groups, but the breakthrough came with the work of Carl Linnaeus. P30

B. In 1768, the Royal Navy appointed James Cook as the commander of the Endeavor to take members of the Royal Society on an expedition to Tahiti. P31

C. He also looked out for new economic species: plants that could be grown in England or other parts of the world to produce crops that could be sold. P31

D. Banks was the first to move crops from one continent to another on a large scale, helping to develop local economies with these new imports. P31

2. Ability goals 能力目标

Enable students to talk about “Botany” and say something about the development history of botany. Help the students to know the contribution of the three important persons to the science of botany. Try to improve the reading ability of the students.http://www.dakao8.com/

三. Teaching important and difficult points说教学重点及教学难点

Help students to understand the whole passage. Help students to know how to use some key words and understand the meaning of some difficult sentences.

四．说教学方法和学法指导Teaching methods and study guide

在本单元的Reading当中,文章比较长,有很多有的新单词,个别的句子非常难理解,学生在阅读当中一定会遇到一定的困难。因此，我采用了一些灵活的实用的教学方法（如Scanning and skimming method和Task-based method），帮助学生理解文章的内容，努力提高阅读课的教学效果。具体做法如下：

1. 解读标题 The Birth of a Science. 这能帮助学生快速了解文章的内容。对提高阅读效果有很大的帮助。 老师可向学生设问：What is Botany?让学生思考并回答。

2. 通读课文，了解细节。老师可向学生提出问题：How many people are mentioned in the passage? 让学生快速阅读并寻找此问题的答案。

3. 深层了解,归纳课文大意。What is the main idea of the passage? 让学生归纳文章的大意，从而帮助学生理解整篇文章的内容。

4. 升华主题。What can we learn from the passage? 让学生能联系实际，学有所获。

5. 让学生进行分组（Pair work/ Group work）的讨论（Discussion），加深学生对课文的理解，进一步调动学生学习的积极性。

五．说教具准备Teaching aids

A recorder, a notebook computer and a projector.

六．说教学过程Teaching procedures

Step 1.Presentation

Step 2 Fast reading

Step 3 Listening

Step 4 Exercises

Step 5 Post reading

Step 6 Language points

Step 7 Homework

Step 1.Presentation

What is Botany? Science of studying plants is called BotanyStep 2 Fast reading (Reading material):

A. Pre-reading questions:

B. Fast-reading questions:( 3minutes)

§主旨大意

■ The text“The Birth of a Science”mainly tells us _________ ．

A．the importance of botany

B．how to classify plant species into groups

C．the history and development of botany

D．Linnaeus’discoveries about different species§推理判断

●Captain Cook made ________voyages altogether around the world.

A．one B．two C.three D. fourC .Intensive-reading questions: (5-10minutes)( ppt. is better for students to understand)

What were the goals of James Cook’s first voyage around the world?

Key: three goals: the first goal was to observe the planet Venus when it passed across the sun. This would get the astronomers to have a chance to work out the distance between the earth and the sun. The second goal was to record, classify and describe all plants and animal life observed during the trip. The third goal was that Captain Cook was given secret instructions to search for an unknown southern continents.

Step 3 Listening

How many people are mentioned in the passage? Who were they?

Carl Linnaeus

Daniel Solander

Joseph Banks

Captain Cook

Step 4 Exercises

1.Before Linnaeus, botany was ________．

A．studied by doctors B．unknown to anyone

C．fully developed D．a branch of medicine

2. Some economic species plants such as____could help to develop local economies．

A．rose and peony B．tea and apple

C．cocoa and hemp D．Cocoa and lemon

3. It was ____ who made Kew(地方名) a centre of scientific and economic research．

A．Joseph Banks B．Captain Cook

C．Linnaeus D． Daniel Solander

4.Paragraph one of the text mainly tells us ___ ．

A．the importance of botany B．how to classify plant species into groups

C．Linnaeus’ contribution to botany D．Linnaeus’ discoveries about different species

5.Captain Cook made ___voyages altogether around the world.http://www.dakao8.com/

A．one B．two C．three D.four

Step 5 Post reading

1.Why was Karl Linnaeus important to the history of botany as a science?

Because his idea of grouping plants in families was ______. The identification of different species was based on the arrangement ofthe female and male organs in the flowers.

2.How did scientists classify plants before Linnaeus?They classified plants into _____ and herds according to the shape of the _____ and whether they had flowers or not.

3 What were the goals of James Cook’s first voyage around the world?

There are _____. First ,it was to study the passing of the planet Venus. Second,it was to record and classify all plant and animal life. Third, it was to search for unknown southern land.

4 Why did Banks have to supply his own money to equip part of the expedition?

Because the __________ would not pay for all the equipment and expenses.5 What did Banks do in his later life?

He was involved in enterprise exploration of Africa and settlement of Australia. He developed a

great botanical _______ and so on.

Step 6 Language points

P1.

1. according to 根据 2. whether they have flowers or not 是否3. at first sight. 第一眼，乍看

4. make attempt to do sth 尝试着做…

e.g. He made no attempt to take a medical degree.

We failed in our attempt to climb the mountain.

5. classify …. into 把．．编排，分类

e.g. Children in school are classified into grades.

Eggs are classified according to the size.

6. group plants in families ( 动植物的)科

We can group animals into several types.

7. base on/ base sth on sth 把…建立在…的基础之上

We base our hope on the good news we had yesterday.

8. as a result/ as a result of 由于，作为…的结果

9.be related ( to sb/ sth) 和…有联系

He is related to her by marriage( 他与她是姻亲)

P2 develop a lifelong friendship with sb 和…建立终生的友谊

P3

1. lead / live a ……life ( cosy, simple, happy) 过着…的日子

2. have an appetite for sth 爱好….

I have an appetite for classical music.

3. born into a life of privilege( born of) 生于…的家庭

P4.

1. appoint sb as…任命….为….

2. on an expedition to sp 对…进行远征

3. search for /search /look for/ discover/ find 辨析

P5

1.强调句型

It was the British government that paid for all the equipment and expenses for that part of the expedition.

2.pay for/ pay back/ pay off/ pay down(用现金支付，当场支付)／pay up(付清全部欠款)/ pay a visit to sb/ pay sb/sth a visit/ pay attention to/ pay one’s respect to sb(拜访， 拜见) / pay honor to sb (向…致敬)

P6

1. species ( means, works, series) 单复数同型，作主语时，注意谓语动词单复数．

2. Joseph Banks did not only study and describe new plants he found, but also looked out for new economic species: plants that could be grown in England or other parts of the world to produce crops that could be sold.

3. look out for 警惕，留心

4.on a large scale 大规模的，大范围的

5. Banks was the first to do…

only, last ,next 序数词 ，形容词最高级常用不定式修饰

P7

1. The voyage had been a great success. (c) 成功的人或事

2 wonderful discoveries had been made of strange new lands, ….

3. be involved in / involve sb in 和…有联系； 参与…. 活动

4. It was Joseph Banks who made Kew a centre of scientific and economic research.

强调句型

Step 7 Homework