Unit 3
Section One Tactics for listening
Part 1 Spot Dictation
Wildlife
Every ten minutes, one kind of animal, plant or insect (1) dies out for ever. If nothing is done
about it, one million species that are alive today will have become (2) extinct twenty years from
now.
The seas are in danger. They are being filled with (3) poison: industrial and nuclear waste,
chemical fertilizers and (4) pesticides, sewage. If nothing is done about it, one day soon nothing
will be able to (5) live in the seas.
The tropical rain (6) forests, which are the home of half the earth's living things are (7) being
destroyed. If nothing is done about it, they will have (8) nearly disappeared in twenty years. The
effect on the world's (9) climate - and on our agriculture and food (10) supplies - will be
disastrous.
(11) Fortunately, somebody is trying to do something about it. In 1961, the (12) World Wildlife
UNIT12
你为何如此聪明？
卡伦·赖特
科学家们正在试图寻找可能管理着智力的“聪明”基因。但是智力基因能被用来测定遗传的智商吗？与生俱来的基因在多大程度上与智商有关系？下面的文章将告诉我们在这个问题上的最新研究。
这是经济和社会成功最为重要的预测者之一。它帮助决定你在哪儿工作，在哪儿生活，和谁结婚，是否会离婚，是否会未婚生子，是否会有牢狱之灾。它可以被非常精确地测算，一生中很少变化。它受你的基因的重大影响。
真是如此吗？
当讨论说的是人类智能时，你不必太费力就能够找到论据。自从英国心理学家查尔斯·斯皮尔曼提出一种单个的综合智力管理着认知行为的许多方面的主张 ，一个世纪以来，科学家们和社会已对智力进行了长期而不断的争论：它是什么，作用是什么，谁拥有它，如何改进它，如何测算它，以及如何最好地解释和利用测算 方式。
最近，由1994年出版的书《钟形曲线》所引发的争议,再次引起了人们对先天禀性和后天培育这个问题的争论：智力是可训练的还是遗传不变的？人类的思想是天生的还是创造出来的？经过几十年的研究，绝大多数智力科学家的结论是，两者兼而有之，分量大致均等。
因此，某处某人会开始寻找“聪明”基因，也许是不可避免的，。那个“某人”就是罗伯特·普洛明，一个从事智力研究已有25年之久的 有经验的专家，他目前在伦敦的精神病学学院工作。去年，普洛明公开了一个基因与高智商相联系的第一个证据。今年，他又 宣布发现了三个聪明基因的位置。在此后的几个月里，他期望发现至少两打最为重要的智力遗传决定因素。他的工作已经引起了和认知器管打交道的DNA医生的想象――以及不安。"我知道，没有别的人会发疯，以至来做这件事情，”他说。
普洛明的探索，是行为遗传学领域中最为大胆的探索之一。行为遗传学是一门致力于发现影响人类行为的遗传因素的学科。其中一项研究是通过比较双胞胎儿一起喂养和分开喂养的情况，来发现影响人类行为的遗传因素。另外一个办法是比较收养孩子的特征与他们的生父母 、养父母及亲兄妹和非亲兄妹的特征相比较。如果进行得顺利，这些研究能决定一种特征的遗传性：在多大程度上个人之间的差异是由于基因的关系，而不是教养，营养，和教育这样的环境因素的作用。一旦一个特征的遗传模式建立起来，研究者们就可以确定有关的基因。
英语泛读教程3 (Unit 1-7课文) ants05
1 Unit 1
1 Text
Invented Words
New words appear in English every day. Do you know how these words are born? Read the following passage to find
various ways English words are invented.
Scholars guess that English has about 600 000 words, but there are probably more. New words continue to
come into the language at such a rate that no dictionary could possibly keep up with them. The old words which
were born centuries ago in the Anglo-Saxon, Germanic and French languages make up four fifths of the English
language. The other one fifth is made up partly of borrowed words and partly of three other kinds of words: words
from the names of peoples and places; imitative words; and invented words.
Ampere, volt and watt are all units of electricity, and they are named for the men who discovered them; Andre
《泛读教程》第三册课后题答案
Unit 1 Section A
Vocabulary Building:
I. 1. practical, practice, practices, practical, practiced 2. worthless, worthy, worthwhile, worth, worth 3. vary, variety, variation, various, Various
4. absorbing, absorbed, absorb, absorption, absorbent II. 1. effective, efficient, effective 2. technology, technique 3. middle, medium, medium Cloze
Going/about/trying, expectations/predictions, questions, answers, predictions/expectations, tell,
know/foretell, end, develop/present, worth Section B
TFTT, CBCC, TFF, CAA, CCA
Unit 2 Section A
Vocabulary Building:
I. mess, preference, aimlessly, remarkable, decisive, shipment, fiery, physically, action, housing
II. 1. aptitude, attitude 2. account, counted, counted 3. talent, intelligence Cloze Other, just/only, has, some/many, than, refuse, see/know/understand, that, without, If,
