Unit 1 Text A-1 Johnny the Explorer Text A-2 Growing Pains Text B-1 Working while You Grow Text B-2 E.T.- A Fairy Tale of the Space Age Unit 2 Text A-1 Making Friends Text A-2 Black and White Text B-1 Friends Text B-2 Friendship Unit 3 Text A-1 Louis Pasteur：A Modern-Day Scientist Text A-2 Can Computers Replace People？ Text B-1 The Scientific Method（1） Text B-2 The Scientific Method（2） Unit 4 Text A-1 A Country of Immigrants Text A-2 Dolly Parton Text B-1 The Automobile in American Life Text B-2 I.M.Pei Unit 5 Text A-1 Cycling for Air-with Love Text A-2 The Woman of His Dreams Text B-1 Early Autumn Text B-2 Marriage and Romance Unit 6 Text A-1 Alex，the Talking Parrot Text A-2 Do Animals Think？ Text B-1 How Desert Animals Survive the Summer Heat and Dryness Text B-2 The Roadrunner Unit 7 Text A-1 A Lucky Escape Text A-2 The Death Car Text B-1 Jump Text B-2 Afraid to Fly Unit 8 Text A-1 Adult Education in the U.S. Text A-2 Nobody Can Do It Like McDonald's Text B-1 Correspondence Schools in the U.S. Text B-2 Biological Clocks Appendix Key to Comprehension Exercises
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