UNIT 1
1. We have a problem with the computer system, but I think it’s fairly minor.
2. My father died when I was too young to live on my own. The people of my hometown took over responsibility for my upbringing at that point. 3. The toys have to meet strict/ tough safety requirements before they can be sold to children.
4. Radio and television have supplemented rather than replaced the newspaper as carriers of news and opinion.
5. When it comes to this magazine, it is a digest of articles from many newspapers and magazines around the world .
UNIT 2
1.Though greatly affected by the consequences of the global financial crisis, we are still confident that we can face up to the challenge and overcome the crisis.
2.Under threat of constant sand storms, we were compelled to leave our cherished village and move to the new settlement.
3.According to a recent online survey, a lot of consumers say they may be motivated to consider buying products shown in TV commercials.
4.Having spotted a truck driver dumping contaminated waste alongside the river, the old man reported to the police at once.
5.Some scientists hold to the firm conviction that people will come to like genetically modified crops someday since they can increase yields and help combat hunger and disease in the developing world.
UNIT 3
1) The Internet is changing the way people live, (no matter) whether they are in urban or rural areas.
2)Medium-sized and small companies are more vulnerable to the threat of the global economic crisis than large ones.
3) With regard to our term paper, the professor asked us to analyze the unemployment chart first, and then provide critical reflections on the nations economic development.
4)It never occurred to him that their team would win the basketball match by a large margin.
5) Looking back on my twenty years' teaching in high school, I attribute my success to patience, talent, and the constant pursuit of knowledge.
UNIT 4
1) The volunteers sent/assigned by the Red Cross disinfected, with great caution, the drinking water in the village so as to avoid an outbreak of plague.
2)Einstein spent many years trying to unify the theories of electromagnetism and gravity but failed.
3)Professor Wang received/won the Presidential Award for his excellence in stimulating students' creative imagination.
4) As there were some major design flaws, the board of directors didn't approve of the economic stimulus package.
5) Having realized that nobody could help him, Jordan finally came to the conclusion that he had to face reality and take up/meet the challenge by himself.
Unit 5 Giving Thanks 1). Grandma took it for granted that food prices would soar, so she bought a lot of rice. 2). I can quote you several instances of her dedication to science. 3). The 1980s saw the start of the swift development of some special economic zones in China. 4). Tension between the two countries stemmed in part from the latest spy affair. 5). Peter has worked in a law firm for many years. You can consider having him as your lawyer to act on your behalf when you need legal help.
第一单元
我想，不是所有热爱乡村的人都会乐意过我们这种生活的。这种生活需要一些特殊素质。其一是耐得住寂寞。由于我们如此忙碌，手头又紧，我们很少请客。在作物生长季节根本就没工夫参加社交活动。吉米和埃米莉虽然参加学校的各种活动，但他俩大多数时间呆在家里。
另一项要求是体力——相当大的体力。小范围里实现自给自足的途径是抵制诱惑，不去购置拖拉机和其它昂贵的节省劳力的机械。相反，你要自己动手。我们仅有的机器(不包括割草机)是一台3马力的小型旋转式耕耘机以及一架16英寸的链锯。
没人知道我们还能有精力在这里再呆多久一也许呆很长一阵子，也许不是。到走的时候，我们会怆然离去，但也会为自己所做的一切深感自豪。我们把农场出售也会赚相当大一笔钱。我们自己在农场投入了约35，000美金的资金，要是现在售出的话价格差不多可以翻一倍。不过现在不是出售的好时机。但是一旦经济形势好转，对我们这种农场的需求又会增多。
但我们主要不是为了赚钱而移居至此的。我们来此居住是因为想提高生活质量。当我看着埃米莉傍晚去收鸡蛋，跟吉米一起在河上钓鱼，或和全家人一起在果园里享用老式的野餐，我知道，我们找到了自己一直在寻求的生活方式。
第二单元
但此地只是我所承担的繁重使命的一处停留地。乔赛亚·亨森只是一长串无所畏惧的男女名单中的一个名字，这些人共同创建了这条“地下铁路”，一个由逃亡线路和可靠的人家组成的用以美国南方黑奴的秘密网络。在1820年至1860年期间，多达十万名黑奴经由此路走向自由。
2000年10月，克林顿总统批准拨款1600万美元建造全国“地下铁路”自由中心，以此纪念美国历史上第一次伟大的民权斗争。中心计划于2004年在辛辛那提市建成。真是该建立这样一个中心的时候了。因为地下铁路的英雄们依然默默无闻，他们的业绩依然少人颂扬。我要讲述他们的故事。
第三单元
取而代之的是防盗锁、防护链、电子报警系统，以及连接警署或私人保安公司的报警装置。郊区的许多人家在露台上安装了玻璃滑门，内侧有装得很讲究的钢条，这样就没人能把门撬开。
在最温馨的居家，也常常看得到窗上贴着小小的告示，称本宅由某家安全保卫机构或某个保安公司负责监管。
锁成了美国的新的象征。的确如此，一家大保险公司最近的一则公益广告没有用图表表明我们所处的危险有多大，而是用了一幅童车的图片，车身上悬着如今随处可见的挂锁。
广告指出，没错，确是保险公司理赔失窃物品，但谁来赔偿互不信任、担心害怕这种新氛围对我们的生活方式所造成的影响呢?谁来对美国从自由之国到锁之国这一蜕变作出精神赔偿呢?
因为那就是现状。我们已经变得如此习惯于保护自己不受美国生活新氛围的影响，如此习惯于设置障碍，以致无暇考虑这一切意味着什么。
第四单元
爱因斯坦的父母有时伟业各方。没有保姆要求：阿尔贝坐在沙发上，完全吸收，悄悄地做数学题，而周围的人他跳舞。铅笔和纸伟业的Game Boy！
他令人印象深刻的权力集中。爱因斯坦的妹妹玛雅，回顾“... ...甚至当有大量的噪音，他可以躺在沙发上，拿起笔和纸，不稳定的平衡Inkwell的靠背和自己一个问题，以至于独占背景噪音的刺激，而不是他的不安。“
爱因斯坦是清晰聪明，但不outlandishly超过他的同行们。 “我没有什么特殊的人才，”他声称，“我只是有极强的好奇心。”的话：“流行的评估... ...我的权力与现实之间的对比简直是怪诞。”爱因斯坦记入他的发现的想象力和讨厌的质疑更比正统的情报。
第五单元
身为大学教授的爸爸向来特别留意不使用任何过于感情化的文字，因此，当他信中写道，在教了许许多多的年轻人之后，他现在认为自己最优秀的学生当中也包括自己的儿子时，我知道他是多么地感动。
纳尔逊牧师写道，他那平凡的老派校长的岁月随着学校里发生的如此迅猛的变化而告结束，他也怀着自我怀疑的心态退了休。“说我做得不对的远远多于说我做得对的，”他写道，接着又说我的信给他带来了令人振奋的信心：自己的校长生涯还是有其价值的。
一看到外祖母那熟悉的笔迹，我顿时回想起往日站在她的白色摇椅旁看她给亲戚写信的情景。外祖母一个字母一个字母地慢慢拼出一个词，接着再写下一个词，因此写满一页要花上几个小时。外祖母最近花费不少工夫对我表达了充满慈爱的谢意，读着老人家的信我禁不住流泪——从前是她给我换尿布的呀!
