Unit4 Green world

Unit4 Green world

扬中市第二高级中学

苏宜昭

Tulip

Sunflower

Peony the Chinese national flower

Discussion:1.What are these?

2.What are they used for?

3.What do they come from?

Coffee beans are used to make coffee. It originally came from Africa, although coffee-drinking started in Arab countries.

Tea leaves are used to make tea. It originally came from China.

Chili peppers are used as a spice to make food more tasty. In fact ,many Chinese may believe it came from China. However ,it came from Latin America.

Hemp is used to make rope or carpets. And it came from the Central Asia.

Question:

What do we call the person doing the research on the plants?

Do you know any botanists?

How do scientists classify them now? How did they classify them in the past?

THE BIRTH OF A SCIENCE

botany

Listening

How many people are mentioned in the passage?

Carl Linnaeus Daniel Solander Joseph BanksCaptain Cook

Fast reading

What are the relationships between them?

Solander was Linnaeus’ student.

Solander developed a lifelong friendship with Joseph Banks.

James Cook was the captain of the Endeavour .Banks was a member of the Endeavour.

Careful reading

Read the text and choose the best answer, including the exercises on page 31.

1. Before Linnaeus botany was ________ ．A ． studied by doctors B ． unknown to anyoneC ． 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 appleC ． cocoa and hemp D ． Cocoa and lemon

3. It was ____ who made Kew a centre of scientific and economic research ．A ． Joseph Banks B ． Captain CookC ． Linnaeus D ． Daniel Solander

4.Paragraph one of the text mainly tells us ___ ．A ． the importance of botanyB ． how to classify plant species into groupsC ． Linnaeus’ contribution to botanyD ． Linnaeus’ discoveries about different species

5.Captain Cook made ___voyages altogether around the world.A ． one B ． Two C ． Three D.four

1.When did botany become a special science?

2.How was plant species classified before the work of Carl Linnaeus?

3.What is the difference between Linnaeus’ system and that of the other scientists?

4. Was Daniel Solander a member of the Royal Society?

5.What did Joseph Banks do on the three-year voyage?

6. What great contributions did Joseph Banks make to the birth of botany as a science?

Read the text again and discuss the following questions with your

partner

Language points1. promote

(a) 提升 , 晋升 ( 常与 to 连用 ) Our teacher has been promoted to headmaster.

(b) 积极筹划 Who is promoting this boxing match?

(c) 宣传 , 推销 ( 商品 ) Do you have any idea hoe to promote the sales of this product?

(d) 支持 , 促进 , 鼓励 Teachers should promote the love of learning of the students.

2. appoint

(a) 委派 We must appoint a new teacher at once to the mountain school.

(b) 任命 The teacher appointed her as monitor

(c) 约定 ( 常与 for 连用 ) The manager appointed a time for meeting.

3. calculate

(a) 计算 The scientists can calculate accurately when the spaceship will reach the moon.

(b) 估计 , 推算 I calculate that she will arrive here at 10 pm.

(c) 计划 , 打算 This room is not calculated for such use.

(d) calculate on =depend on=rely on 依靠 , 依赖

4. abandon

(a) 抛弃 , 舍弃 , 离弃 He abandoned his wife and went away with all their money.

(b) 放弃 , 停止做 They abandoned the game because of the rain.

(c) 放纵 , 放任 He abandoned himself to despair.

5. involve

(a) 牵涉 , 拖累 Don’t involve other people in your trouble.

(b) 包括 , 涉及 All the children were involved in the school play.

6. accumulate

(a) 积累 By buying ten books every month , he soon accumulated a good library.

(b) 堆积 , 积聚 Dust quickly accumulates if we don’t sweep our room.

Homework

• Review the contents we have learnt today.• Preview the next reading.