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1、 第一单元答案 Enhance Your Language Awareness Words in Action Working with Words and Expressions 1.In the boxes below are some of the words you have learned in this unit.Complete the following sentences with the words given.Change the form where necessary.Answers:1)spark 2)compelled 3)bare 4)scrape 5)dest
2、ruction 6)output 7)retreat 8)tipped 9)miracle 10)eternal 11)pile 12)transfer 13)mass 14)thereby 15)have emerged 16)trigger 17)threaten 18)consumed 19)hollow 2.In the boxes below are some of the expressions you have learned in this unit.Complete the sentences with them.Change the form where necessary
3、.Answers:1)show signs of 2)cope with 3)lives in fear of 4)tough it out 5)cut down 6)from head to foot 7)searched out 8)nothing short of 9)As yet 10)settle in 11)take heart Increasing Your Word Power 1.You will read six pairs of words which are similar in meaning but are different in usage.Reflect on
4、 the differences in usage between the words in each group and fill in each blank with a proper one.Change the form if necessary.Answers:1)temptation 2)attraction 3)chance 4)opportunity 5)states 6)country 7)warned 8)threatened/threatens 9)refuse 10)reject 11)total 12)gross 2.A blend is a word produce
5、d by combining parts of other words,such as“comsat”from“communications”and“satellite”.Try to find out what words the following blends are formed from.You may consult a dictionary if necessary.Answers:Blend Formation Meaning smog smoke+fog 烟雾 blog web+log 博客 brunch breakfast+lunch 早午餐（早餐和午餐合为一餐）autoc
6、ide automobile+suicide 撞车自杀 chunnel channel+tunnel 海峡隧道 motel motor+hotel 汽车旅馆 netizen net+citizen 网民 sci-fi science+fiction 科幻小说 workaholic work+alcoholic 工作狂 wi-fi wireless+fidelity 无线网络 3.Fill in the blanks in Column B with an adjective in Text A.The target adjective must be opposite in meaning t
7、o the one in Column A and must form a correct collocation with the noun in Column C.Answers:1)individual 2)contradictory 3)destructive 4)rational 5)primitive 6)synthetic 7)distant 8)pessimistic 9)irreplaceable 10)enormous Grammar in Context 1.Study the following sentences from Text B and point out t
8、he grammatical function of each of the present participles used as an adverbial.Answers:1)an adverbial of accompanying circumstances 2)an adverbial of accompanying circumstances 3)an adverbial of result 4)an adverbial of result 5)an adverbial of manner;accompanying circumstances 6)an adverbial of re
9、sult 7)an adverbial of time 2.Complete the following sentences by translating the Chinese in the brackets into English,using a present participle as an adverbial.Answers:1)killing thousands upon thousands of people 2)raising the average yield by 15 percent 3)trying to deduce its operating principle
10、4)Seeing that everyone was bending over his/her book 5)Not having heard from his parents for a long time 6)leaving the project unfinished 7)Turning to the right 8)Not wanting to make the patient nervous Cloze Complete the following passage with words chosen from this unit.The initial letter of each
11、is given.Answers:(1)realm (2)elemental (3)obtain (4)stubbornly (5)transferred(6)transformed (7)subdued (8)expansion (9)irreplaceable (10)extinct(11)dynamic (12)verge (13)moderate (14)ecological (15)rational Translation 1.Translate the following sentences into English,using the words and expressions
12、given in brackets.Answers for Reference:1)The village is so close to the border that the villagers lived in constant fear of attacks from the enemy.2)In only twenty years the country was transformed into an advanced industrial power.3)Seeing the project successfully completed,those who had invested
13、so much time and energy in it felt very proud.4)Given the current financial situation,it is inevitable that the US dollar will be further devalued.5)There are so many vehicles nowadays that the roads in this area are barely adequate to cope with the present traffic.6)The weather showed no signs of g
14、etting better so the government called upon us to get prepared for floods.7)Alice had been confined to bed for over 10 years after the traffic accident,and so her recovery seemed nothing short of a miracle.8)The students were all very much concerned about the World Cup,spending at least two hours ev
15、ery day watching the live matches on TV.9)Thomas said that his family had settled in Florida more than half a century ago.10)Ask for help.Don t tough it out yourself.I learned this lesson early in my life.2.Translate the following passage into English.Answers for reference:Human beings live in the r
16、ealm of nature.They are not only dwellers in nature,but also transformers of it.With the development of society and its economy,people tend to become less dependent on nature directly,but indirectly their dependence grows.Human beings are connected with nature by“blood”ties.No one can live outside n
17、ature.However,the previous dynamic balance between man and nature has shown signs of breaking down.Problems such as the population explosion,ecological imbalance and the shortage of natural resources have become major factors keeping human society from being further developed.Professor Spirkin holds
18、 that the only choice for human beings is the wise organization of production and care for Mother Nature.Theme-Related Writing Write an essay of no less than 150 words on the topic“My Understanding of Environmental Protection”.Your writing should cover the following points:1)the relationship between
19、 man and the environment 2)the urgency of environmental protection 3)ways to protect the environment Sample essay My Understanding of Environmental Protection Man and the environment are closely related.Man relies on the environment for water,food and shelter.A harmonious relationship between man an
20、d the environment is essential for human survival on the earth.However,man and the environment have never been on such bad terms as they are now.As society develops,mans transformation of nature has severely polluted his living environment.Deforestation leads to changes in rainfall patterns,causing
21、devastating floods,droughts and sandstorms.The discharge of chemical pollutants endangers our health and the lives of other beings.And mass production has resulted in the shortage of irreplaceable natural resources such as coal and oil.If we take no immediate and effective steps to protect our envir
22、onment,human beings may be the next species to become extinct.We should do our best to protect our environment by planting more trees,taking care of wildlife,reducing industrial wastes,using renewable energy,and imposing heavy fines on environmentally-unfriendly activities,so as to preserve the environment for future generations.(167 words)