CONTENTSUnit One 1
A．Discrimination:Numbers 1
A．Discrimination:Numbers 2
A．Discrimination:Tag QuestionsB．Comprehension:An Interview with Mrs.Henry FordC．Comprehension PracticeUnit Three 1 3
A．Discrimination:Review ofUnits 1- 4
A．Discrimination:IntonationB．Comprehension:A Visit to an Old-fashioned MuseumC．Comprehension PracticeUnit Two 7
A．Discrimination:Review of Units 6- 9
A．Discrimination:Review of Units 11- 14
A．Discrimination:Weak FormsB．Comprehension:Artficial IntelligenceC．Comprehension PracticeUnit Four 18
A．Discrinfination:Polite and Impolite RequestsB．Comprehension:TheStar Wars DebateC．Comprehension PracticeUnit Five 24
B．Comprehension:Long-term MemoryC．Comprehension PracticeUnit Six 30
A．Discrimination:Certainty and UncertaintyB．Comprehension:Tour Through the CampusC．Comprehcnsion PracticeUnit Seven 35
A．Discrimination:Polite and Impolite DisagreenentB．Comprehension:Lost in the UndergroundC．Comprehension PracticeUnit Eight 41
A．Discrimination:ComplainingB．Comprehension:A Visit to a RestaurantC．Comprehension PracticeUnit Nine 47
A．Discrimination:Interpreting IntonationB．Comprehension:MIT ResourcesC．Comprehension PracticeUnit Ten 52
B．Comprehension:Predicting EarthquakesC．Comprehension PracticeUnit Eleven 57
B．Comprehension:Dealing with the Energy CrisesC．Comprehension PracticeUnit Twelve 63
B．Comprehension:Bird FlightC．Comprehension PracticeUnit ？ 70
A．Dsoimination:Opinions and FactsB．Cmprehension:Some Advantages and Disadvantages ofNuclear PowerC．Comprehension PracticeUnit Fourteen 77
A．Discrimination:Opinions and EvaluationB．Comprehension:Trial Voyage ofthe TritonC．Comprehension PractioeUnit Fifteen 84