1. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Unit_3_workbook

2. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Part A1 (page 118) 1 starve Starvation 2 tolerate tolerance 3 opposed opposition 4 colonize colonies 5 innocent innocence 6 desired desirable 7 strength strengthen

3. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Part A2 (page 118) 1 a simplified b simplify c simply 2 a considering b considerate c considered d considerable 3 a influential b influence 4 a concluded b conclusion

4. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Part B1 (page 119) 1 virtue 2 inappropriate 3 collar 4 idiom 5 burglar 6 sadness 7 political 8 warmth

5. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Part D1(page 121) 1 seeds 2 equality 3 tasty 4 unconsciously 5 convey 6 dimensions 7 sadness 8 unrest

6. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Part D2 (page 121) 1 Every citizen should be loyal to the country and its people ． 2 Every student in our class has a say in the matter of who will be elected monitor ． 3 These football players have done far less than what the coach expected ． 4 The problem is that what he says does not correspond to what he does

7. 2009 年下学期 湖南长郡卫星远程学校 制作 12 5 Our school building is quite old and dates back t0 the 1920s ． 6 The lecturer discussed his favourite topic ， which led to many arguments among the students afterwards ． 7 The ability to talk distinguishes human beings from many animals ． 8 During this period you will receive strict training relating to your duties ．

8. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Reading Part A (page 122) 1 The amount of melanin in skin determines skin colour ． The more melanin you have ， the darker your skin is ． The less melanin you have ， the lighter your skin is ． 2 Vitamin D can be produced in lighter skin that has been exposed to sunlight ． People can also get Vitamin D by eating foods such as fish and milk ．

9. 2009 年下学期 湖南长郡卫星远程学校 制作 12 3 Humans originally lived in Africa ， where the sun is strong ， so they had a lot of melanin ， making their skin dark ． When they moved away from Africa ， their skin started producing less meIanin to adjust to the weaker sunlight ， so their skin got lighter ． 4 His or her skin will produce more melanin ， making the skin darker With darker skin ， he or she will need to eat foods to get enough vitamin D ．

10. 2009 年下学期 湖南长郡卫星远程学校 制作 12 5 Their diet is rich in vitamin D ， so they don’t need to make less melanin for vitamin D absorption. Therefore ， their skin stays rather dark ．

11. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Part B(page 123) 1 They paint themselves to identify themselves with their group ， for ceremonies such as weddings ， and during times of war ． 2 The Masai men use red to represent that they are ready to marry and make decisions for their people ， while the Samburu use red because they think it looks nice ．

12. 2009 年下学期 湖南长郡卫星远程学校 制作 12 3 The marks mean that he is brave because he has killed a lion ． He is now an adult and no longer a boy ． 4 It expresses their hope for rain and enough food ． It is also a chance for men to show their strength and find a wife ． 5 They use it near the eyes and on the lips to draw attention to the whiteness of their eyes and teeth ．

13. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Listening Parts A and B (page 124) 1 Italy 2 Yellow 3 Black 4 Germany 5 Cream 6 Blue 7 Southern Italy 8 Red 9 blue 10 red 11 Germany 12 grey 13 jackets 14 green 15 yellow

14. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Parts C (page 124) 1 Italy 2 Germany 3 yellow 4 black 5 Germany 6 cream 7 orange 8 skirts 9 white 10 blue 11 black 12 red 13 black 14 skirts

15. 2009 年下学期 湖南长郡卫星远程学校 制作 12 Writing Part B (page 125) Sample answer omitted