og14讨论

oliviachen

请问86题，

哪里体现了Geminid meteor shower occurs yearly?

是这句话吗？Has the predicted twin-peaked activity been observed for the actual yearly GEminid meteor shower?

cocoabean

对, 我找得就是这句,

谢谢醋醋mm, 茅塞顿开的说

EASYSUMMER

多谢11DUOXIE ！！！

david_348

这篇文章看不懂，能作对，我可真是服了楼主了！

很多题目都是infer还有derive from，不懂也对！！偶大半看懂，错了大半，吼吼....

唉

强！！

[此贴子已经被作者于2004-11-16 22:37:23编辑过]

Shuaishuai

我全看懂了，错了3，12分钟，气的晕啊。基本都是粗心惹的祸！

happythree

OG对这片文章的结构分析是:

The author describes the new theoretical model in the first paragraph; in the

final paragraph the author states that the data obtained from actual observations, which are

discussed in the second and third paragraphs, is consistent with the new theoretical model.

但是文章最后

The Geminid data between 1970 and 1979 show just such a bifurcation, a secondary burst of meteor activity being clearly visible at an average of 19 hourse (1,200,000 miles) after the first burst. The time intervals between the bursts suggest the actual Geminid stream is about 3,000 years old.  产生bifurcation了,怎么还能说是consistent呀. 请指教

lavaall

以下是引用happythree在2004-12-28 13:11:00的发言：

OG对这片文章的结构分析是:

The author describes the new theoretical model in the first paragraph; in the

final paragraph the author states that the data obtained from actual observations, which are

discussed in the second and third paragraphs, is consistent with the new theoretical model.

但是文章最后

The Geminid data between 1970 and 1979 show just such a bifurcation, a secondary burst of meteor activity being clearly visible at an average of 19 hourse (1,200,000 miles) after the first burst. The time intervals between the bursts suggest the actual Geminid stream is about 3,000 years old.  产生bifurcation了,怎么还能说是consistent呀. 请指教

这个分歧不是关于新理论的，而是关于在实验中预测Geminid有5000年，但实际在1970至1979年的观察中显示它只有3000年。

ring_cheng

接着前面fair_sword的说法：

OG在解释中将Astronomers have hypothesized............的扩散理论认为是传统理论，同时又用上句however 明确指出传统理论预测会收紧，把本来挺明确的结构关系搞乱，请牛牛们解释一下第一段的结构，谢谢。

首先Astronomers have hypothesized that a meteor stream should broaden with time，这个是传统理论(注意看have hypothesized--证明这是一个已经做过的假设了，是旧理论），接着被一个recent computer-modeling experiment 证明了这个假设。

Conventional theory ，however, predicted that distribution of particles would be dense toward the center of a metero stream.  Surpriingly..........

这个however其实是和后面的surpringly 引导的句子成转折对比关系，可以翻译成：“这个传统理论认为中间会变厚， 然而令人惊奇的是，这个实验表明steam 会变成一个"壁厚而中空”pipe”。Surprisingly 后面的实验结果(“壁厚而中空”)才是文章重点讨论的新理论，它与传统的“变厚理论”都是基于Astronomers have hypothesized that a meteor stream should broaden with time之上的。

不知道这样说清不清楚？

sensornet

请问各位第82题，
82. The author states that the research described in the first paragraph was undertaken in order to
在第一段里我没找到research呀。请问哪个是？

wangyu73cn

以下是引用ringcheng在2005-3-15 22:58:00的发言：
接着前面fair_sword的说法：

OG在解释中将Astronomers have hypothesized............的扩散理论认为是传统理论，同时又用上句however 明确指出传统理论预测会收紧，把本来挺明确的结构关系搞乱，请牛牛们解释一下第一段的结构，谢谢。

首先Astronomers have hypothesized that a meteor stream should broaden with time，这个是传统理论(注意看have hypothesized--证明这是一个已经做过的假设了，是旧理论），接着被一个recent computer-modeling experiment 证明了这个假设。

Conventional theory ，however, predicted that distribution of particles would be dense toward the center of a metero stream.  Surpriingly..........

这个however其实是和后面的surpringly 引导的句子成转折对比关系，可以翻译成：“这个传统理论认为中间会变厚， 然而令人惊奇的是，这个实验表明steam 会变成一个"壁厚而中空”pipe”。Surprisingly 后面的实验结果(“壁厚而中空”)才是文章重点讨论的新理论，它与传统的“变厚理论”都是基于Astronomers have hypothesized that a meteor stream should broaden with time之上的。

不知道这样说清不清楚？

我觉得，说清楚了。^_^