Warming up、Pre-reading、Reading、Comprehending优秀教学设计

Unit4《Exploring plants》教案（选修9）

教学内容：

Plant exploration in the 18th and 19th centuries Teaching goals: 1.

Language target: A. Key words and phrase: exotic, conflict, container, restriction, date back to, appeal to B. Key sentences a. Collecting “exotic” plants, as they are called, dates bake to the earliest times. b. However, it was not until the eighteenth and nineteenth centuries that the exploration of the botanical world began on a large scale. c. One of the collectors was Father Farges, who collected 37 seeds from a tree that has appealed to him. d. The European classes took great interest in collecting plants. e. Large numbers of seeds failed to grow after long sea voyages. 2.

Ability goals A.

Students get some information on plant exploration. B.

Students get the main idea, find and infer information according to the reading material. C.

Students express their ideas after reading.

D.

Students help, cooperate and communicate with each other. Teaching important points To enable students to understand the reading material by using predicting, skimming, scanning, analyzing, summarizing and inferring after reading. Teaching difficult points 1. To enable students make use of given information to express their opinions on the passage. 2. Help students observe language points and prepare for the grammar revision.

Teaching methods Task-based learning approach, competition, group work, discussion Teaching aids Multi-media computer platform, group cards

Teaching procedures Step 1. Lead-in (3’)

Discuss the question: What’s the relationship between plants and animals? Step 2. Pre-reading (3’)

Before you read the text, glance quickly through it and answer these questions.

1. What’s the topic of the text?

2. What three plants are featured?

3. What do the photos show you?

4. What three animal pollinators are featured? Step 3. While reading Part 1. Fast reading Now read the text more carefully and answer these questions. 1.Why can no other animals but the yucca moth pollinate the yucca? 2.Can you guess why the Traveller’s Palm has that name? 3. What do you think “sweet tooth”

means? 4. Why do the male wasps try to mate with the orchid flowers? 5. Why do the female wasps visit the orchid flowers? Do they have a role in pollination? Part 2. Detailed reading

(20’)

Now read and think about the

advantages and disadvantages of

the relationships between the plants and pollinations described in the text. Task 1

Check your understanding

and complete the table.

Plant/pollinator

Orchid

Wasp Traveller’s palm

Lemur

Orchid

Wasp

Task 2. Discussion

Advantages

Disadvantages

Discuss what you think would happen to the animal pollinators of each of the plants described if these plants died out. Step 4. Post-reading

Help Liang Qiming find out who made the greatest contribution in plant exploration in the 18th and 19th centuries. 1.

Discussing in groups

2.

Giving opinions.

Step 5. Assignments

1.Try to add a short paragraph as the end of the passage. 2. Get some information about plant exploration in the 20th and 21st centuries on the Internet.