[try best]中文作文提纲 by suzie

yjwn1987UID：2495078

TOPIC: ARGUMENT45 - The following appeared as an editorial in a wildlife journal.

"Arctic deer live on islands in Canada's arctic region. They search for food by moving over ice from island to island during the course of a year. Their habitat is limited to areas warm enough to sustain the plants on which they feed, and cold enough, at least some of the year, for the ice to cover the sea separating the islands, allowing the deer to travel over it. Unfortunately, according to reports from local hunters, the deer populations are declining. Since these reports coincide with recent global warming trends that have caused the sea ice to melt, we can conclude that the decline in arctic deer populations is the result of deer being unable to follow their age-old migration patterns across the frozen sea."
WORDS: 4          TIME: 00:03:36          DATE: 2009-6-13 下午 11:02:38


1.全球变暖，冰块是会融化但是可食用植物会增多，鹿就无需迁徙。
2.hunters 提供的survey是否可靠？（他们在固定低调捕鹿，而鹿不迁移了）
3.减少原因：污染，猎人。

yjwn1987UID：2495078

A46思考中

yjwn1987UID：2495078

TOPIC: ARGUMENT47 - Scientists studying historical weather patterns have discovered that in the mid-sixth century, Earth suddenly became significantly cooler. Although few historical records survive from that time, some accounts found both in Asia and Europe mention a dimming of the sun and extremely cold temperatures. Either a huge volcanic eruption or a large meteorite colliding with Earth could have created a large dust cloud throughout Earth's atmosphere that would have been capable of blocking enough sunlight to lower global temperatures significantly. A large meteorite collision, however, would probably create a sudden bright flash of light, and no extant historical records of the time mention such a flash. Some surviving Asian historical records of the time, however, mention a loud boom that would be consistent with a volcanic eruption. Therefore, the cooling was probably caused by a volcanic eruption.
WORDS: 6          TIME: 00:03:33          DATE: 2009-6-14 上午 09:22:42

1.变冷是否只因为火山爆发和小行星撞击？（地球的自然周期，
2.巨大的亮光很有可能未被人们记录下来 （在Arctic 地区，dessert地区）
3.巨大响声不一定就是火山爆发 （地震，甚至就是小行星撞地球）

yjwn1987UID：2495078

TOPIC: ARGUMENT48 - The following appeared in a newspaper article published in the country of Corpora.

"Twenty years ago, one half of all citizens in Corpora met the standards for adequate physical fitness as then defined by the national advisory board on physical fitness. Today, the board says that only one quarter of all citizens are adequately fit and suggests that spending too much time using computers may be the reason. But since overall fitness levels are highest in regions of Corpora where levels of computer ownership are also highest, it is clear that using computers has not made citizens less physically fit. Instead, as shown by this year's unusually low expenditures on fitness-related products and services, the recent decline in the economy is most likely the cause, and fitness levels will improve when the economy does."
WORDS: 9          TIME: 00:05:07          DATE: 2009-6-14 上午 09:28:53

1.尽管电脑多的地方健康水平高，但perhaps 1.电脑多但使用的并不频繁 2.这些地区同时推进其他的健康措施。
2.在健身产品上花费的钱少 因为1.选择free的sport style 2.healthy diet
3.即使健康真的下降：不爱运动，喜欢玩电脑或者看电视；饮食习惯不好，快餐食品；环境污染；工作压力太大，使人精神紧张而且没时间去运动

yjwn1987UID：2495078

TOPIC: ARGUMENT49 - The following appeared in a letter to the editor of a newsletter on health issues.

"For the past decade, most health experts have advised teenagers to avoid eating greasy foods in order to prevent acne and related skin conditions, but the number of teenagers who sought medical help for these skin problems has actually risen over the same period. In a recent study, teenagers who avoided greasy foods for a month reported approximately as many outbreaks of acne and related skin conditions as did those who ate an average of two servings of greasy food per day. Such data indicate that eating greasy foods is unlikely to be a cause of acne and related skin conditions. Therefore, health experts should no longer recommend that people avoid such foods."
WORDS: 4          TIME: 00:04:27          DATE: 2009-6-14 上午 09:34:16

1.虽然建议了，但青少年是否采纳了建议的措施？（没有给出数据调查，很难确定）
2.也许要坚持比一个月更长的时间不吃油腻食物才有效。调查的青少年的人数，性别，卫生习惯？
3.就算油腻食物不会引起acne，也会引起 肥胖，高血压，心脏病等等。

yjwn1987UID：2495078

TOPIC: ARGUMENT50 - From a draft textbook manuscript submitted to a publisher.

"As Earth was being formed out of the collision of space rocks, the heat from those collisions and from the increasing gravitational energy of the planet made the entire planet molten, even the surface. Any water present would have evaporated and gone off into space. As the planet approached its current size, however, its gravitation became strong enough to hold gases and water vapor around it as an atmosphere. Because comets are largely ice made up of frozen water and gases, a comet striking Earth then would have vaporized. The resulting water vapor would have been retained in the atmosphere, eventually falling as rain on the cooled and solidified surface of Earth. Therefore, the water in Earth's oceans must have originated from comets."
WORDS: 3          TIME: 00:07:00          DATE: 2009-6-14 上午 09:46:57

1.既然地球在形成现在大小之前是无法存留水分的，又没有证明地球形成现在大小后还有彗星撞击，所以不能肯定海洋是由彗星撞击形成的。
2.即使有彗星撞击，撞击产生的热量也有可能会使水分散失。
3.如果作者所述是成立的，那么只要满足体积足够大以及被彗星撞击的条件就都可以有水。事实上，比地球大并且也遭受过彗星撞击的行星有很多，但目前只发现地球有水。所以，我们必须考虑其他的因素，比如地球自身元素合成水等等。

LHCOUID：2680495

GOOD。
thanks