Answers to Unit 2 Book 4 Key to Ex of U1, 3, 4, 6 of Book 4 Unit 1 Man and Nature Enhance Your Language Awareness Words in Action (pp19-23) Working with Words and Expressions 1. 1) disaster 2) compelled 3) historical 4) disciplined 5) destruction 6) output 7) retreat 8) abandoned 9) trace 10) eternal 11) investment 12) transfer 13) justify 14) nonetheless 15) contributions 16) accelerate 17) threaten 2. 1) show signs of 2) called upon 3) off limits 4) in fear of 5) slow down 6) cut down 7) from head to foot 8) come by 9) lost out 10) As yet 11) reside in Increasing Your Word Power 1. 1) web + log 博客 2) breakfast + lunch 早午餐 3) medical + care 医疗保险/保障 4) motor + hotel 汽车旅馆 5) net + citizen 网民 6) science + fiction 科幻小说 7) work + alcoholic 工作狂 2. 1) the scientific study of the human race, especially of its origins, development, customs and beliefs 2) archaeology 3) ecology 4) the study of rocks, soils, etc. which make up the Earth, and of their changes during the history of the world 5) ideology 6) the study of the history and theory of music 7) psychology 8) the scientific study of the nature and development of society and social behavior 9) zoology 3. 1) individual 2) contradictory 3) destructive 4) rational 5) primitive 6) synthetic 7) distant 8) pessimistic 9) irreplaceable 10) enormous Grammar Review (pp23-24) 1. 1) She wished us health and success in the new year. 2) He asked how we were getting along with our work. 3) Jack said to me that I would be happy to know that his condition had improved. 4) Rose asked Jack whether he was sure his mother would like the idea. 5) He asked John how long he had been waiting for them. 6) She sa...
