Unit 4 Green World
一、知识部分
1、重点单词
procedure bunch merely classifypromoteappetiteappoint calculate expense involve settlement accumulateabandon tone reward technician nowherealtogether latter distinguished appearance
2、重点短语
look out for ,on a large scale, year after year, pass away, name after, in detail, a bunch of, be suitable to, have…in common, belong to, a branch of, classify…into, base…on…, according to, have an appetite for, appoint…as…, lead a cosy life, be involved in, at one’s own expesse, give birth to
3、重要句型
强调句型
4、交际用法
speak about procedures
I divide the stage into three parts…
Firstly,…
It is very important in the middle part…
The last part is….
This is the whole case.
5、语法
宾语
I gave an apple to the old man yesterday.
I appreciate walking along the street with my sweetheart.
6、能力部分(writing a pocedure)
二、教学过程
period I
Step 1
Warming up
Look at the pictures and match each flower with its correct name.
2.Can you tell something about each flower? Where does it come from?
3.What is it used for?
4.Which flower is your favourite? Explain why.
5.What vocabulary will you need to talk about flowers and plants?
Step 2
Listening(略)
Step 3
Speaking
speak about procedures
I divide the stage into three parts…
Firstly,…
It is very important in the middle part…
The last part is….
This is the whole case.
Step 4
Homework

Period II and Period III
Reading:
Warming up
Look at the pictures and match each flower with its correct name
Which flower is your favorite? Explain why.
Pre-reading
Why was Carl Linnaeus important to the history of botany as a science?
His system of grouping plants in families was unique, which based on the arrangement of the male and female organs in the flowers.
While-reading
Fast reading
How many people are mentioned in the passage?
Carl Linnaeus Daniel Solander Joseph Banks Captain Cook
Careful reading
1. Before Linnaeus botany was ________．D
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．C
A．rose and peony B．tea and apple C．cocoa and hemp D．Cocoa and lemon
3. It was ____ who made Kew a centre of scientific and economic research．A
A．Joseph Banks B．Captain Cook C．Linnaeus D． Daniel Solander
4.Paragraph one of the text mainly tells us ___ ．C
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. C
A．one B．Two C．Three D.four
Post-reading
1. How did scientists classify plants before Linnaeus?
Some scientists classified plants into herbs and trees, or according to the shape of the fruit, or whether they had flowers or not.
2. What were the goals of James Cook’s first voyage around the world?
To study the passing of the planet Venus across the sun; to record, classify and describe all plant and animal life observed during the trip; to search for an unknown southern continent.
3. Why did Joseph Banks have to supply his own money to equip part of the expedition?
Because the government would not pay for such a new field of science as botany.
4. What could be a possible explanation for the name “strawberry”?
When people plant strawberry, they spread straw under the fruit to reduce the necessary amount of watering.
Translate the following phrases into English:
1. 详细地 in detail
2. 处于支配的地位，负责 in charge of
3. 由……负责 in the charge of
4. 任命某人为…… appoint sb. as
5
生词表: