ambition n.野心；雄心； 企图

Getting into Yale may signify intelligence, talent and ambition. (2008.6)

进入耶鲁大学意味着聪明，才能和雄心壮志。

amid prep.在...中（01-6，03-6）

analyst n.分析家, 分解者（02-12）

ancient n.古老的（02-1，03-12，05-6，06-12，08-6,07-12，08-12）

anonymous adj.匿名的（05-12）

antenna n.天线（02-1）

antisocial adj.危害社会的（99-1，03-6）

anxious adj.忧虑的；焦虑的， 不安的（06-12）

appeal v.呼吁；恳求

The traditional markets retain their appeal for the many Chinese who still prefer fresh food like live fish, ducks, chickens over packaged or frozen goods. （05-1）

appetite n.食欲；胃口（05-12，08-12）

appliance n.设备； 器械；装置（07-12，08-6）

appreciate v.感激；感谢（90-6，92-1，08-12，）

A highly responsible and tough professor is usually appreciated by top students who want to be challenged, but disliked by those whose records are less impressive. （93-1）

approach vt.走近；靠近 n. 方式，方法（07-12，08-6，08-12）

Throughout the nation’s more than 15,000 school districts, widely differing approaches to teaching science and math have emerged.（05-1）

appropriate adj.正确的；适当的（08-12）

For many patients, institutional care is the most appropriate and beneficial form of care. （98-6）

approximate adj.近似的, 大约的

argue n.争论, 辩论

The immigrants’ loudest critics argue that the new wave of immigrants cannot, and indeed do not want to, fit in as previous generations did.

声势最大的批评认为，新的移民浪潮并不能像前面数代人一样真正融入，实际上他们也并不像这么做。

arithmetic n.算术, 算法（93-6）

arrest v.逮捕, 拘留, 吸引

They’ll have you arrested if you don’t pay your taxes. (91-6)

arrogant adj.傲慢的, 自大的(08-6，08-12)

artificial adj.人造的；人工的（08-6）

The Space Age commenced in October 1957 when the first artificial satellite was launched by the Soviet Union.（99-1）

aspect n.模样，面貌；方面，观点

At the University of Sussex, you are introduced to the nature and grammar of English in all aspects. （08-12）

assignment n.指派的职位（05-12）

association n.协会（08-12，02-12）

assumption n.假定；假设（05-6，08-12）

Nowadays many rural people flock to the city to look for jobs on the assumption that the streets there are paved with gold.（05-6）

astronaut n.航天员（90-6，01-6，02-6）

Astronauts have been known to develop motion sickness, too.（90-6）

athletic adj.运动的； 运动员的（05-1，，）

One of the major producers of athletic footwear, with 2002 sales of over $10 billion, is a company called Nike. (08-12)

atmosphere n.大气

Phasing old bulbs out by 2030 would save the output of 650 power plants and avoid the release of 700 million tons of carbon into the atmosphere each year. （07-12）

attain v.达到, 获得（07-6）

All too often, it is the lack of action that ultimately holds people back from attaining their ideals.(07-6)

attempt v./n. 尝试, 企图

Bowerman was also known for experimenting with the design of running shoes in an attempt to make them lighter and more shock-absorbent. (08-12)

attent adj.注意的, 留意的

authority n.权威；威信（07-6）

auxiliary adj.辅助的

bacteria n.细菌（05-1）

ban v.禁止

The machines contain high levels of lead and other hazardous substances, and are already banned from California landfills (垃圾填埋场).( 05-1)

barrier n.障碍（07-12）

Young blacks, whose unemployment rate stands today at 50 96, will find another barrier in front of them.（90-6）

She wrote poetry that broke through national barriers.（06-6 听）

be aware of 1.知道（08-12）

Workers should be aware of the potential dangers at the workplace.

behavior n.举止, 行为

Human behavior is mostly a product of learning, whereas the behavior of an animal depends mainly on instinct. (2008.6)

人类的行为主要是学习观察的结果，而动物的行为则主要依赖于本能。