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教学重点 (Teaching important points) :Mastery the words and expressions.
教学方法（Teaching methods）: Task- reading, listening, speaking, practice, discussion
教具准备(Teaching aids) 多媒体课件
教学过程（Teaching procedures）
Step 1
Lead –in .
Questions:
Who is the king in the forest?
What do you think of tigers?
Step2 Fast-Reading
A, Show the following questions:
How many tigers were there at the beginning of the 20th century?
2. How many tigers are there in the wild today?
3. What do tigers look like?
4. What do tigers symbolize?（象征)
5. What does “at the top of the food chain” mean?
6. What is the reason tigers are important to the environment?
7. Why do people hunt and kill tigers?
B, Listen and and write (T) or (F)
1.Tigers live in the forest of American
2.The tiger is not at the top of the food chain
3.Tigers are important to the environment
4.Some people hunt and kill tigers for food
5.The number of tigers in the wild is quickly decreasing.
C.discussion
Step3. careful-reading (language points)
1. At the beginning of the 20th century, the number of tigers in the wild was around 100 000.
在二十世纪初期，野生老虎的数量大约是十万只。
the number of
表示“许多”，相当于many，修饰可