文档介绍：Unit 4 Exploring plants
教材课文读写
一、摘要导写
Read the text again and answer the following questions.
When did the plant exploration begin on a large scale?
2. Who played an important role in plant exploration?
1. It was not until the eighteenth and eenth centuries that the plant exploration began on a large scale.
2. Some missionaries and plant collectors.
3. What was the result of plant exploration?
4. What was invented in order to transport the plants safely?
3. Many exotic plants are introduced into different countries.
4. The Wardian case.
Please write a summary according to the above questions, using about 30 words.
Summary :The plant exploration began on a large scale between the eighteenth and eenth centuries. Some missionaries and plant collectors introduced many exotic plants into different countries with the help of the Wardian case.
二、任务写作
After you have read the text, please surf on the and write a brief introduction of Rafflesia arnoldii.
Rafflesia arnoldii is the world’s largest single flower. It grows largely in Southeast Asia , on the Malay Peninsula, Borneo, Sumatra, Kalimantan, and the Philippines. These flowers have no leaves and hardly any stem, just a huge speckled fivepetaled flower with a diameter up to one metre, and weighing up to 10kg.
Even the smallest one has 20cm diameter flowers. The flowers smell like rotting meat, hence its local names are translated to “corpse flower”or “meat flower”. It is parasitic on a vine, spreading its roots inside the vine.
语言知识讲练
1. conflict ,争论;战斗(争),抵触
运用:完成下列句子。
(1)如果这样的话,你的观点一定会和他的冲突。
If so, your points of view are bound to_____
___________________.
conflict with his