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通过jigsaw reading,retelling掌握文章主旨和主干支撑的信息。?
学习策略：
通过自主、小组合作、探究学习等活动形式，不断深化话题和对重点句型的掌握。?
文化品格：
了解树木为人类所做的巨大贡献，树立保护树木的意识,培养绿色生活的态度。
（四）教学重难点?
掌握文章主旨和主干支撑的信息，描述树木的用处和重要性并讨论保护树木的方法。
（五）教学过程
StepI Warming up
Flash Game-Review words and phrases
Check the vocabulary exercise
Step II Pre-reading
Background knowledge：A short quiz about trees
Skimming: Answer the questions by looking at the title, the beginning and pictures of the interview.
StepIII While-reading
Divide the article into 3 parts.
Jigsaw reading:
Read the first part of the conversation to find out the topic sentence and supporting details.
Read the second part of the conversation to find out topic sentences and conclusion.
Read the third part and answer the questions.
Step IV Retelling and futher reading
Finish the mind map and retell the passage.
Discuss after reading a passage about problems caused by deforestation.
Watch a video to strengthen the feeling.
Step V Post-reading
Show the Green new ideas in China.
Group discussion——A proposal to save the trees
Step VI Sumary and homwork
Blackboard design:
Trees are improtant.