Unit One Reading New Words and Expressions Text Nightingale at Scutari Text Comprehension Vocabulary Exercises Grammar and Structure Group Activities Further Reading New Words and Expressions Text Nightingale and the Wounded Soldier Review and Practice Word-Building Tips（1） Unit Two Reading New Words and Expressions Text The Red Cross Text Comprehension Vocabulary Exercises Grammar and Structure Group Activities Further Reading New Words and Expressions Text The Canadian Red Cross Review and Practice Word-Building Tips（2） Unit Three Reading New Words and Expressions Text What Is It?（Part Ⅰ） Text Comprehension Vocabulary Exercises Grammar and Structure Group Activities Further Reading New Words and Expressions Text What Is It?（Part Ⅱ） Review and Practice Word-Building Tips（3） Unit Four Reading New Words and Expressions Text A Typical Operation Text Comprehension Vocabulary Exercises Grammar and Structure Group Activities Further Reading New Words and Expressions Text Operation and Anesthesia Review and Practice Word-Building Tips（4） Unit Five Reading New Words and Expressions Text Shift Work Text Comprehension Vocabulary Exercises Grammar and Structure Group Activities Further Reading New Words and Expressions Text Flight of Fantasy Review and Practice Word-Building Tips（5） Unit Six Reading New Words and Expressions Text Immigrant Kids Text Comprehension Vocabulary Exercises Grammar and Structure Group Activities Further Reading New Words and Expressions Text America'S Most Famous Immigrant Review and Practice Word-Building Tips（6） Unit Seven Reading New Words and Expressions Text Aging and Life Span Text Comprehension Vocabulary Exercises Grammar and Structure Group Activities Further Reading New Words and Expressions Text The Dream of a Longer Life Review and Practice Word-Building Tips（7） Unit Eight Reading New Words and Expressions Text A Young Entrepreneur Text Comprehension Vocabulary Exercises Grammar and Structure Group Activities Further Reading New Words and Expressions Text Who Wants to Become a Fireman? Review and Practice Word-Building Tips（8） Unit Nine Reading New Words and Expressions Text A Proud Head Text Comprehension Vocabulary Exercises Grammar and Structure Group Activities Further Reading New Words and Expressions Text Protective Coloration Review and Practice Word-Building Tips（9） Unit Ten Reading New Words and Expressions Text Grasping Life Text Comprehension Vocabulary Exercises Grammar and Structure Group Activities Further Reading …… Unit Eleven Unit Twelve Unit Thirteen Unit Fourteen Unit Fifteen
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