Unit 1
II. Basic Listening Practice
Keys: 1.C 2.D 3. B 4.D 5.A
III. Listening In
Task 1:On the first day
Keys:
(1)the first day
(2)changing
(3)really good
(4)hard workers
(5)went over her head
(6)explained
(7)notes
(8)Wednesday
(9)participation
(10)education
Task 2:How to select elective courses?
Keys:
(1)extra training
(2)chemistry
(3)accounting
(4)many fields of study
(5)better potential
(6)business degree
(7)challenging
(8)how to learn
(9)better understanding
(10)narrow-minded
Task3: How to get straight A's?
Keys:1.B 2.C 3. D 4.A 5.D

Unit 2
II. Basic Listening Practice
Keys: 1.B 2.D 3. A 4.A 5.C
III. Listening In
Task 1:We should have proper respect for nature!
Keys:
(1)nature
(2)environmental problem
(3)pollution
(4)promote
(5)aware of
(6)from occurring
(7)law
(8)throw away
(9)fined
(10)trash
Task 2:River pollution
Keys:1.D 2.A 3.B 4.C 5.D
Task3: Curbing carbon emissions
Keys:1.D 2.D 3.A 4.B 5.C

Unit 3
II. Basic Listening Practice
Keys: 1.B 2.A 3. D 4.B 5.A
III. Listening In
Task 1:Competition in America
Keys:1.C 2.A 3. C 4.B 5.D
Task 2:How to select elective courses?
Keys:
(1)roots
(2)what
(3)moral
(4)diligence
(5)sin
(6)teachings
(7)centuries
(8)If it's worth doing at all, it's worth doing well
(9)In English a new word has been created to describe people who work compulsively
(10)Others hold that workaholics are valuable members of society because they are extremely productive
Task3: Cross-cultural tips on doing business
Keys:1.D 2.A 3. D 4.A 5.C

Unit 4
II Basic listening practice
1-5 CABCD
III Listening in
Task 1
(1) typical
(2) known
(3) Generally
(4) find
(5) apartment
(6) sole
(7) principal
(8) Dual-earner families are the predominant type for families with children in the United States
(9) adequate day care of children is necessary for dual-earner families
(10) companies are getting involved in the arrangement of day care
Task 2
1-5BAABA
Task 3
1-5AAADC

什麽鬼

啊哦，挖坟了……

继续啊

是这本书吗