第一步 引入话题

Let students name some great scientists. And then ask them to try the quiz on Page1 and find out who knows the most.

Answers:

1. 浮力定理 — 阿基米德

Archimedes

2. 生物进化论 — 达尔文

Charles Darwin

3. 蒸汽机 — 纽科文 Thomas Newcomer

James Watt improved it in the 1770s and turned it into the first modern steam engine used on the railway.

the first steam engine

4. 遗传学 — 孟德尔

Gregor Mendel

5. 镭的发现者 — 居里夫人

Marie Curie

6. 电 — 爱迪生

Thomas Edison

7. 达芬奇

Leonardo da Vinci         Mona Lisa         Last Supper

8. 矿工安全灯 — 汉弗来.戴维爵士

Sir Humphry Davy    Miner's Safety Lamp

9.地动仪 seismograph — 张衡

Zhang Heng       Seismograph

10. 黑洞理论 — 斯蒂芬·霍金

Stephen Hawking

第二步 学生活动（小组竞赛）

1. Divide students into groups of four and let them find what quality a scientist should have. Each student can give one adjective, and then name a scientist who has such a quality. Then see which group can find the most.

For example:

Student1: Careful      Copernicus

Student2: Strong determination      Stephen Hawking

Student3: Creative      Albert Einstein

...

2. Ask two or three groups to show their opinions.

3. Tell students they will learn another scientist: Carl Linnaeus，and then introduce the background information about him.

Carl Linnaeus (1707–1778) lived and worked in Sweden. He succeeded in classifying kinds of plants and animals. His classification has proved very successful and is still used today.

Carl Linnaeus

第三步 听力训练（双人活动）

The purpose of the listening is to introduce the work of Carl Linnaeus to us. They should understand why his work was important to the development of biology, yet he is not well-known.

1. (Page 41 Listening) Ask students to read the questions and talk about the picture.

2. Students listen to the tape for the first time and choose what it is about.

Key to Exercise 1: The correct answer is C.

3. Ask students to have a look at Exercise 2 before they listen to the tape again.

4. Play the tape and let students fill in the blanks.

5. Ask students to exchange their information.

6. Play the tape again for the students to correct their answers.

第四步 角色扮演：电话预约（双人活动）

1. (Page 41 and 42 Talking) Ask students to read this situation.

2. Let students read the expressions of “Describing people”.

3. Ask students to make up a dialogue in pairs.

4. Ask some pairs to present their dialogues to the class.

Sample dialogue:

S1: Hello. This is Dr Evans' office. Can I help you?

S2: Yes, please. I'd like to change my arrangement to meet Dr Evans. I want to show him this new orchid that I've found. We originally arranged to meet in the University laboratory but now I'm unable to do that.

S1: Oh yes. I've got it down here in his diary. Where would you like to meet now then?

S2: Outside the Botanical gardens on Trumpington Road. But it's always very crowded there, so I wonder if you could give me an idea of how I could recognize Dr Evans?

S1: Yes, of course. He's tall and thin with long, grey hair and glasses.

S2: That sounds very clear. What other special features does he have?

S1: Yes. He walks with a limp because he broke his leg skiing many years ago. What do you look like?

S2: Dr Evans can easily recognize me. I'm short and thin with brown, curly hair. I always wear a duffle coat and a bobble hat. He'll know me because I'll be carrying my flower.

S1: I'll tell him. Thank you for your clear description. I'm sure Dr Evans is looking forward to meeting you. Goodbye.

S2: Goodbye.

第五步 作业布置

1. Page 46 Speaking Task + Page 47 Project

Ask students to prepare a talk on their chosen scientists.

2. Think about the questions in “Pre-reading”.