4.Because they regard smoking as a symbol of sexual ability and even success
5.Smoking and cigarette advertising Unit 9：A：1.1,500,000
2.Individual choices can create new economic risks 3.Flood caused more death in large populated countries
4.It is a measure to show that poverty and the risk of dying in a disaster are linked
5.To strengthen government structure
B：1.They fail to supply enough recycled products
2.They produce paper containing high level of recycled fibers 3.The fiber extracted from natural forest
4.Because recycled papers are more expensive 5.To advise consumers to buy recycled paper
Unit 10：A：1.Understand him and learn from him
2.Because he feels that they are worth showing to the public 3.He believes them to be worth looking at
4.It contains subjects chosen partly for their meaning
5.One must look beyond shapes and colors to find what the artist is saying
B：1.Her family
2.In order to enter the world of international pop music 3.In 1994
4.Singing with her own soul 5.Translating them into English
Unit 11：A：1.They were surprised at the rapid development of science
2.Cloning is benefical and moral problems can be avoided 3.It is not bad but we must make sure if it is necessary
4.They are more concerned with the moral features of science 5.Cloning and its controversies
B：1.It has just been in commercial use
2.They are based on an entirely new working principle 3.Streets
4.It refers to a certain area in which workers can hear talk from out-side the zone
5.Noise-control technology
Unit 12：A：1.Instincts and environment 2.Aggression is something learned 3.To fight back hard
4.Because it is part of their way of life 5.Fighting and killing
B：1.Because woman is invisible in the saying 2.Because they try to conceal their privacy 3.Women are second-class citizens 4.Women have succeeded in their jobs
5.Men refuse to admit women’s achievments
