对英语四六级有用的 英语翻译

16...从石油中制造蛋白质来为人类和牲畜提供食物，在某些国家已成为石油公司当前研究计划中的重要项目。
17....If you are interested in science,statistics,or engineering,which are based on mathematics,you will need to be an expert in this field.
4...后者忽视了向分散居住的社区提供充分的服务需要较高的花费，以及近郊居民上下班既费钱又费时间。
5...For the population as a whole,we must be more concerned with the delayed effects of absorbing small amounts of the pesticides that invisibly pollute our world.
11...男女婚姻角色的第二个变化是他们共同做决定，共同承担责任花些时间照管孩子，或者整天照管，或者根本不管。
12....Often however,the ambitions that parents have for their children are another cause of the division between them.Often they discover that they have very little in common with each other.
6...除市场体系外，另一种是由政府的某一机构对所有交易进行控制。该机构可颁发布告或条令来决定每一经济实体所生产，交换和消费的每种产品或服务的数量。
7....Aristotle,for example,whose natural science dominated western thought for two thousand years,believed that man could arrive at an understanding of reality by reasoning from self-evident principles.
9...在发展中国家，无限膨胀的人口对有限的食品，空间和自然资源造成了巨大的压力，因此，政府的当务之急就是控制生育，无论其后果如何。
10...That was before we entered the permissive period in education in which we decided it was all right not to push our children to achieve their best in school.
13...这些纪念品收集者趁警卫没看见时敲掉一些石屑。旁观的旅游者似乎对此行为采取容忍态度，因为几乎没有什么人报告或埋怨。
14....It finds it in those other plats which,having received theirs free from the sun,relinquish it at some point in their cycle either to other animals or to fungi.
1...Researchers have established that when people are mentally engaged, biochemical changes occur in the brain that allow it to act more effectively in cognitive(认知的)areas such as attention and memory.
17...如果你有志于科学，统计学或工程学等以数学为基础的学科，那你在数学方面也应是一个专家。
18....The ancient Greek civilization knew of seven metals:gold,silver, copper, iron, tin, lead and mercury.
10...那已是我们进入宽容教育时期以前的事情了。在宽容时期，我们采取不逼迫孩子们在学校获得好成绩的态度。
11....A second difference in male and female roles in that within marriage many decisions and responsibilities are shared. The husband and wife may choose to have children,or they may not.If they have children,the man may take care of them some of time,all of the time.or not at all.
15...判断力可谓在世界上分布最公平了，因为每个人都自认为拥有足够的判断力，就连那些对其他事情样样难得满足的人，通常也没有再增加一些判断力的愿望。
16....The creation of synthetic protein from petroleum to help feed mem and cattle is high on the list of current oil company research projects in some countries.
20....Air travel has become faster and faster,but sometimes there is a need for travelling slowly and even for stopping in mid-air.
空中飞行变得越来越快，但有时候也需要飞得很慢，甚至停在半空。
1...研究人员证实人们在动脑筋时，头脑里会产生生化变化，使头脑在注意力和记忆力这类认知领域中更加有效地活动
2...And someone with a history of doing more rather than less will go into old age more cognitively sound than someone who has not had an active mind.
7....以亚里士多德为例，他的自然科学思想统治了西方二千年。亚里士多德认为，人类可以通过不言而喻的法则进行推理来了解现实世界。
8....He still has the Purple Heart awarded him after he was wounded, although he has had a difficult time keeping it. His girlfriends, explains the bachelor,have wanted to wear it.
3...我们常常相信别人的成功是由于某种特殊的奥秘或是由于某种机遇，但成功极少是如此神秘的。
4...The latter ignores the higher cost of providing fuul services to a scattered community and the cost in both money and time of journeys to work for the suburban resident.
古希腊文明社会使用过七种金属：金、银、铜、铁、锡、铅和水银。
19....Traditionally chemistry has evolved into four provinces:organic, inorganic, physical and analytical chemistry.
按照传统说法，化学已逐步发展成了四大分支：有机化学、无机化学、物理化学和分析化学
12...然而父母对子女的期望过高往往也使两代人产生隔阂。他们常常感到彼此之间很少有共同之处。
13....These souvenir collectors chip off pieces of stone when the guards are not looking.This activity seems to be tole rated by other tourists standing nearby,as few complaints are ever recorded.
8...他仍保存着受伤之后被授予的紫心勋章，虽然有一阵差一点留不住它。这位单身汉解释说，他的几位女朋友都曾想佩戴这枚勋章。
9....In the developing country where a vastly expanded population is pressing hard upon the limits of food,space and natural resources,it will be the first concern of government to place a limit on the birth rate,whatever the consequences maybe.
21.....The problem has been how to make use of the tremendous power which the earth receives from the sun every day.
2...习惯于多动脑筋而不是少动脑筋的人，在进入老年以后，要比一个从来不积极动脑子的人的认知能力更为健全。
3...Too often we believe what accounts for others' success is some special secret or a lucky break(机遇). But rarely is success so mysterious.
14...真菌从其他植物中获得能量，那些植物从太阳无偿获得自己的能量，然后在其能量循环的某一点上将能量转让给其他动物或真菌。