1、Generally speaking, a tactic covers,what you need to do at the moment while a strategy provides the broad guidelines that determine the overall direction.
一般来说，一个策略覆盖，你需要做什么，此刻而战略提供确定的总体方向的广泛的指导方针。
2、My family’s health and security are of the utmost importance to me. 我的家人的健康和安全是对我最重要的。
3、If one of those supports gives way， the entire structure may collapse. 如果其中一个支柱倒塌的话，整个结构可能崩溃。
4、Unlike a tightrope, a slack rope will sway up and down or from side to side. 不像钢丝，松弛的绳子将上下晃动或从一边到另一边。
5、The president wanted to see him on a matter of great significance. 总统想要见他关于一个非常有意义的事情。
6、Two foreign tourists died and two solders where badly hurt yesterday when a coach and an Army truck collided almost head-on along a straight stretch of road. 两个外国游客死亡，两个士兵在昨天也受伤了，当一个教练和一辆军用卡车迎头相撞，几乎沿着一条笔直的公路。
7、We tried all sorts of solutions to that problem,and they all come to a deadend . 我们尝试了各种解决方案，他们都是死路一条。
8、The blow on his head erased the details of the accident from his memory. 他头上的打击，让他想不起事故的细节。
9、We usually judge others within the framework of our own experience. 通常我们评判别人根据自己的经验。
10、By the time the lifeboat arrived,the ship was almost vertical in the water .The wounded solder is siting in a vertical position,upright in bed. 通过救生艇到达时，船在水中几乎垂直。受伤的士兵是在一个垂直的位置，坐在床上。
11、The music ceased abruptly when she turned off the radio. 音乐突然停止时，她关掉收音机。
12、By pointing out just one flaw, she destroyed his entire argument. 通过仅仅指出一个小的缺陷，她推翻了他的整个论点。 13、Irony implies the opposite of what is apparently being stated. 反讽暗示着那些显然的话说出来是相反的。 14、He affirmed his plan to make payments on time.
肯定他将按时按照付款计划。
Unit 4
breed . v.繁殖；饲养；产生 accordingly adv. 因此，于是； racial adj. 种族的；人种的 homogeneous adj. 均匀的；[数] 齐次的；
inclusive adj. 包括的，包含的 welfare n. 福利；幸福； adj. 福利的；
deceive v. 欺骗；行骗 irritation n. 刺激；刺激物；
variables n. 变量
uncover vt. 发现；揭开；揭露 irony n. 讽刺；adj. 铁的； verbal adj. 口头的；言语的； readily adv. 容易地；乐意地 indifference n. 漠不关心；冷淡； certainty n. 必然；确实
superior adj. 上级的；优秀的;
1、 Even though animals within a breed may look similar to us humans ,they probably look unique to each other.
即使在一种动物可能类似于人类，他们可能看起来彼此独特。
2、 Student have different individual abilities and potentials,and therefore should taught accordingly . 学生有不同的个人能力和潜力，因此应该因材施教。
3、 Many Americans would deny the existence, of a single American culture partly because there is such racial diversity in the country.
许多美国人会否认存在一种单一的美国文化，部分原因是该国的种族多样性。 4、 Preadolescent groups are homogeneous that is ,members are usually of the same sex and come from the same neighborhood.
青春前期的团队是很均匀的，成员通常是相同的性别和来自同一社区的。 5、 The travel agency will make every arrangement for your trip and the express,all
inclusive are estimated at $300.
旅行社将尽一切安排你的行程，快递，包括一切的估计为300美元
6、 All developed nations maintain a variety of social welfare programs to help unemployed or underemployed people to function more fully in society.
所有的发达国家保持各种社会福利计划来帮助失业或半失业的人以此来健全社会功能。（发挥社会的作用).
7、Lying is defined as deceive someone about certain matters or facts. 说谎是定义为欺骗某人一些确定的事情或是事实。
8、The irritation my boss showed was simply due to my failure to make a favorable comment on his management.
刺激我的老板仅仅是因为我的失败来找一个好的言论，在他的管理上。 9、The variables that educational psychologists have found to be important in classroom teaching include the time teacher allocate to instruction .
教育心理学家发现在课堂教学中是重要的变量包括教师的时间分配指示。 10、The Austrian physician and founder of psychoanalysis,Sigmund Freud,used his psychotherapy to uncover painful and forgotten memories in his patients.
奥地利医师和精神分析的创始人，西格蒙德佛洛伊德，用他的疗法来揭示痛苦和被人遗忘的记忆在他的病人。
11、An instance of irony is the succession,put forward with apparent seriousness by the English satirist Jonathan Swift in his A Modest Proposal.
一个讽刺的例子，很明显由英国讽刺作家乔纳森斯威夫特提出的，在他的《一个小小的建议》这本书中。
12、Human learning and memory have been studied mostly with verbal materials (such as word lists and stories)or with tasks requiring motor skills(such as learning to type or to play an instrument).
人类的学习与记忆已大多与言语材料的研究（如单词列表和故事）或运动技能要求的任务（如学习型或演奏一种乐器）。
13、Babies will readily learn to walk on their own when they are offered a
reward.
婴儿会很容易地学会走路就自己当他们得到了奖励。
14、When depressed, these patients experience painful sadness,negative thinking,and indifference to things that used to bring them happiness.
郁闷的时候，这些患者经历痛苦悲伤的，消极的想法，和冷漠，曾经带给他们快乐的事情。
15、 The probability of an outcome is represented by a number between 0 and 1,with probability 0 indicating certainty that an event will not occur and probability 1indicating certainty that it will occur.
结果的概率是0和1之间的数字，代表以概率0表示确定性事件不会发生概率1指示确定，它会发生。
16、IQ scores may vary according to testing conditions,and thus it is advisable to understand result of the tests as falling within a certain range,such as average or superior . IQ分数可以依照不同的试验条件，因此明智的做法是理解测试的结果固定在一定范围内，如平均或偏好。
Unit 5
emulate vt. 仿真；模仿n.仿效
request n. 请求；需要 vt. 要求，请求 succeeding adj. 随后的，以后的 miniature adj. 微型的， 小规模的 n.缩图； inevitable adj. 必然的，不可避免的 sizable adj. 相当大的；大小相当的 practically adv. 实际地;几乎;事实上 outrage n. 愤怒，愤慨；vt. 凌辱，
craving n. 渴望；热望v. 渴望；
恳求
maximum n. [数] 极大；最大量 adj. 最高(多)的 afflict vt. 折磨；使痛苦； ignorance n. 无知，愚昧 intense adj. 强烈的； 紧张的；非常的；
interval n.间隔；间距correspondence n. 通信；一致;相当
1、The frist artificial intelligence conference in 1956 inspired researchers to undertake projects that emulated human behavior in areas of reasoning ,language comprehension,and communications.
第一个人工智能会议在1956年，这激发了研究人员承担的项目，仿真领域的推理，