21世纪大学英语应用型综合教程2 1-5单元课后答案（完整版）
unit 1
1.in the six-and-one half years sincet the federal ** beagan certifying food as“organic,”americans h**e taken to the idea with considerable enthusiasm.自**六年半前认证“有机”食品以来，美国人以极大的热情接受了这一概念。2.to eat well,says michael pollanthe,the author of"in defense of food,"means **oiding"edible food_like substances"and sticking to real ingredients,increasingly from theplant kingdom.“吃得好”，《食物无罪》的作者迈克尔波轮说，“意味着避免摄入‘可食用的类似的物质’，并坚持从蔬菜中获取真正营养成分的原则。3.neither the enabling leg**lation nor the regulations address food safety or nutrition.不论有机食品的立法或是法规都未涉及食品安全或是营养问题.
4.professor howard that major corporations now are responsible for at least 25 perceent of all organic manufacturing and marketing.霍华德教授估计，大公司现在承担了至少25%的有机食品生产和销售。5.popularizing such choices may not be as marketable as creating a logo that says"organic".推广这样的做法可能不会像设计一个“有机”的标志那么有市场.
1.it ** difficult topopularize education(普及教育)in the rural areas than in the ** areas.
2.every country must stick toits own path（坚持自己的道路）.
3.i made clear to him that he should be responsible for the accident(为这次意外负责).
4.he neither knows nor cares(既不知道也不关心)what happened.
5.many parents expressed concern about(表达了担忧)their children’s internet addiction.
unit 2
1.the two former elephant trainers had seen enough abuse and neglect at circuses and zoos to inspire them to create a sanctuary where elephants could live out their lives.这两位前驯象员在马戏团和动物园见过太多大象所遭受的虐待和忽视，于是决心为大象建立一座可以颐养天年的憩息所.
2.soon hohenwald was rockingas the two greeted each other with ttrumpeting and celebratory bumping.不一会儿，霍恩沃尔德因他们相遇时互致问候的吼声和庆祝性的碰撞而震动起来
3.shirley and jenny instantly fell into their old routine,wandering the sanctuary side by side.雪莉和詹妮很快恢复了她们的老习惯：肩并肩地在保护区内闲逛.
4.at one point,the four spent therr hours trumpeting-the vibrations felt by evey living being in the sanctuary.有一次，四头大象持续三小时的鸣吼使保护区内的每个生命都为之震颤。5.elephants wear their hearts on their trunks,as it were,so it was easy to tell that shirley was not dealing well with jenny ** death-her eyes were half shut and her trunk dragged on the ground.可以说大象不会隐藏他们的心情，因此和容易看出雪莉无法承受詹妮之死所带来的打击—他的眼睛半闭着，鼻子拖在地上。1.it depressed us that(令我们情绪低落)no progress was made duringthe negotiation.
2.don’t let it fall into thehands of enemy(落入敌人手中)。3.not a country can afford to neglect education(忽视教育)
4.he drew out all h** money(取出所有的钱)from the bank.
5.some condemn him,while others pra**e him(而有些人却赞扬他).
unit 3
1.sport has the power to change the world,the power to inspire,the power to unite people in away that little else can.体育运动员具有改变世界的力量，其激励人心，团结众人地力量，在某种程度上难有匹敌。2.during h** 27 years in captivity,mainly on robben **land,sport helped sustain the spirits of mandela and h** fellow inmates.在他27年的铁窗生活中（主要关押在罗本岛），体育运动支撑着他和难友们的精神。3.cities make huge efforts when bidding to stage major sporting events,not just for their commercial worth but for the long-term social benefits that are the lehaby of such events.很多城市在争取举办大型体育赛事时全力以赴，这并非只图其他商业价值，也是为了此类赛事留下的长远的社会效益。4.it shows us how to participate in something that **bigger than ourselves,and teaches us how to demonstrate respect for teammates and opponents.它向我们表明如何参与到比我们自身更具意义的事情中去，教导我们如何向队友和对手表示尊敬。5.the homeless world cup has inspired nearly 50 grass-rootball projects around the world,wo**ng with homeless and excluded people.流浪汉世界杯与一些无家可归，备受冷落的人携手，全世界已促成了近50个基层足球活动项目.
1.men ventured their lives(冒着生命危险)in war.
2.i work for a commercial radio station(商业广播电视台)
3.the company sponsored(赞助)several tv programs.
4.few people realized thed**covery was significant（意义重大）.
5.convention(惯例)requiresthat such meetings open with prayer.
unit 4
1.my caller probably anticipated getting through to the office staff instead of a volunteer who was fin**hing a shift at home.打电话的人可能以为是打给办公室工作的员工，而不是一个刚值完班在家的志愿者.
2 her fragile voice faded away as she struggled to catch her next breath.她费力地呼吸着，声音弱得几乎听不见。3.i was sure thar there was on instance where i condone ** as a solution.我确信在任何情况下我都不可能原谅以死来解决问题的做法。4.grandma florence had taken a turn for the worse,and they wanted me to come back immediately.奶奶弗洛伦斯的病情恶化了，他们让我立刻赶回去。5.my caller’s hope came not from the prospect of her own life improving,but form her perception that god had a aurpose for her life.he needed help on earth just a little longer.打电话者的希望不是来自自己的生活将会改善，而是来自她认为上帝对此早有安排：他需要她的帮助，需要她在尘世多留一些时间。1 my wife burst into tears（哭了起来）when she heard the bad news.
2.the scene before him dimmed out and h** words trailed off(他的话音也逐渐低了下来.
3.i think our fortune ** taking aturn for the better(将要好转)
4.we will deal with these eventsin h**torical sequence（将按历史上的先后顺序研究这些时间）.
5.it ** said that james watt’s observation of steam **suing from a kettle g**e birth to zhe idea of the steam engine(使他产生了发明蒸汽机的想法)
unit 5
1.my fellow americans:ask not what america will do for you,but what together we can do for the freedom of man.我的美国同胞们：不要问**能为你们做些什么，而要问你们能为**做些什么。2.let the word go forth from th** time and piace,bear any burden,meeta any hardship,support any friend,oppose any enemy,in order assure the survival and the success of liberty.让我们的朋友和敌人都能够听见我此时此刻的讲话：火炬已经传给新一代的美国人.
3.let every nation know that we shall pay any price,bear any burden,meet any hardship,support any friend,oppose any foe,in order to assure the survival and the success of liberty.
让每个**都知道，为确保自由的存在和胜利，我们将不惜付出任何代价，承受任何沉重负担，应付任何艰难险阻，支持任何朋友，反对任何敌人.
4.let both sides begin anew the quest for peace,before the dark powers of destruction unleashed by science engulf all humanity in planned or accidental self-destruction.在科学释放出可怕的破坏力量，把全人类卷入到预谋的或意外的自我毁灭的深渊之前，让我们双方重新开始寻求和平。5.for only when our arms are sufficient beyond doubt can we be certain beyond doubt that they will never be employed.因为只有当我们毋庸置疑的拥有足够的军备，我们才能毫无疑问地确信永远不会使用这些军备.
1.let would go forth meet the future（去迎接未来）,without fear,and with a manly heart.
2.not only nice and cheerful things will go,painful and troublesome things will also pass away(痛苦麻烦的事一样会消失)
3.both the teachers and students believe beyond doubt(毫无疑问地)that he ** honest and diligent.
4.we are passing through spring,summer,autumn and winter year in and out(年复一年)
5.let us summon up our courage(鼓起勇气)to struggle against the enemies of man which are tyranny,poverty,d**ease and war itself
十五选十
unit 1
some people prefer organic food rather thannon-organic food
b d n f o k h a j m
unit 2
the elephant sanctuary in hohenwald,tennesseewas built by carol and scott
c l o k h e m f b i
unit 3
sport has the power to change the worldthat no other activities can
n h c g j o a k h j w
unit 4
one day,i received a phone call from anold lady
b c e h d k m o a i
unit 5
chinese-american families are adapting toamerican culture by incorporating certain american values into
e o j a f k m c h l
unit 6
before planting your child in front of a telev**ionset
d n a e g c i k o h