您正在看的高中二年级是:Unit 2 Crossing limits。

　　TEACHING GOALS

　　1. TARGET LANGUAGE

　　a. key words and phrases: curious, wealthy, in exchange for, central position, ambassador, existence, accurate, exist, ripe, command, renew, eXPedition

　　b. key sentences:

　　Trade and curiosity have often formed the foundation for mankind’s greatest endeavor. (p12)

　　Over the next few hundred years, the Swahili kingdoms and the islands off the African coast developed into the world’s trading centre for ivory, spices, rhinoceros horns, shells, animal skins and sugar. (p12)

　　The Arabic contacts to the African coast led to the next meeting between black people and a Chinese. (p12)

　　In the eleventh century, the Africans made several voyages to the court of the Song Dynasty. (p12)

　　2. ABILITY GOALS

　　a. Enable the students to know Chinese contribution to world eXPloration in the 15th century.

　　b. Develop students’ ability of basic reading strategies of bottom-up and top-down.

　　3. Learning ability goals

　　a. Students will understand the great contribution Zheng He had done to the world, thus they may take these national heroes as example and follow them.

　　b. By using the strategies of bottom-up and top-down, students will learn to generalize and collect information.

　　TEACHING IMPORTANT POINTS

　　The eXPlorers’ great contribution to world trade and economy.

　　TEACHING DIFFICULT POINTS

　　Guide the students to pick out the main clue of the passage and the development method of the text.

　　TEACHING METHODS

　　Team work learning.

　　Task-based learning

　　TEACHING AIDS

　　TEACHING PROCEDURES & WAYS

　　STEP I REVISION

　　Check words and eXPressions

　　1. Trade and curiosity (好奇) have often formed the foundation for mankind’s greatest endeavor.

　　2. Marco Polo’s stories inspired Christopher Columbus and other European eXPlorers to search for sea route to the distant, wealthy (富有的) Asian lands.

　　3. Silk from China found its way over land along the Silk Road to India, the middle east and Rome, in exchange for (来交换) spices and glass.

　　4. Ceylon, with its central position (中央位置), was the place where Chinese merchants met with Arab merchants and heard about the westernmost lands.

　　5. Gan Ying, a Chinese ambassador (大使) went to the east Roman Empire over land.

　　6. The contacts between China and Africa over the centuries had led to the awareness of each other’s existence (存在).

　　7. Still no accurate (精确的) maps of the countries around Indian Ocean existed (存在) before Zheng He.

　　8. By the beginning of 15th century the time was ripe (成熟).

　　9. Under the command (统帅) of Zheng He, the fleets set sail from the south China Sea across the Indian Ocean to the mouth of the Red Sea.

　　10. Zheng He renewed (重建) relations with the kingdoms of the East African coast.

　　11. The fleets made several expeditions (远征) before the eXPloration (探险) was stopped.

　　STEP II LEAD-IN

　　STEP III PRE-READING

　　Thesis sentence Many great explorers made eXPeditions across the Indian Ocean long before Columbus, among whom Zheng He was the most prominent.

　　Main idea (before Zheng He) P2

　　China had contacts with countries along the Indian Ocean from the early time, and during ancient tim