【单元目标概说】本单元是以人与自然为题材的五篇科学文艺作品,体裁和表现手法多元化,凸显人们对生存环境的纵情疾呼与深沉忧思。教学时,教师的“导”应重在学生理性思维的形成,培养其人文关怀精神。懂得人与自然之间建立恒久和谐关系的重要。学生的“学”:可走进社会调查;可 [Overview of Unit Objectives] This unit is based on five scientific literary and artistic works based on the theme of man and nature. Its genres and expressions are diversified, highlighting people's indulging and deep feelings about the living environment. When teaching, the teacher's “guide” should focus on the formation of students' rational thinking, and cultivate their spirit of humanistic care. Understand the importance of establishing a long-lasting harmonious relationship between man and nature. Student's “study”: can go into social surveys;