教学目标：
1.知识目标：temperature; pie; in front of; be filled with; help sb. (to) do sth.
2.情感目标：Talking about seasons and activities.
重点难点
1.重点：Some important phrases
2.难点：Talking about seasons and activities.
教学方法：Speaking and practice
教具、学具：多媒体
教学过程：
Step1: Warming up
T: Good morning, boys and girls！As we all know there are four seasons in a year. And in the previous lessons we have learned something about spring and winter. Today let’s come to autumn. Now I’ll ask someone to answer following questions.
a. How is the weather in autumn?
S1: It’s very cool.
b. What about the temperature outside?
S2: It’s about twenty degrees outside.
c. Can you imagine the nature in fall?
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