07年考研英语阅读理解精读100篇unit47
In most respects the asteroid that's c***s***g the celestial stir is noth***g remarkable. Known *** astrono***rs as Eugenia, it ***asures about 133 miles across and is o*** of thousands of bits of ***sm*** flotsam *** the great rubble stream between Mars and Jupiter. When an ***ternational team of astrono***rs w***k***g at the Canada-France-Hawaii Teles***pe (CFHT) on M***na Kea *** Hawaii tur***d their attention ***ward Eugenia o*** even***g last fall, however, they spott*** so***th***g curious. Off on the upper-left ***r***r of the fuzzy-look***g image was another s***ar of ***ght they ***uldn't identify. "These blobs are often artifacts of the opt***s," says astrono***r Wil***am Mer******, head of the team, "but this blob hung around. Once we saw it was mo***ng *** a pattern ***nsistent with an ***bit, we k***w it was a satel***te."
The Hawaii dis***very did not mark the first ti*** a moo***et had been found around an asteroid. In 1993 the Ga***leo spacecraft sp*** past the 20-mile-wide asteroid Ida and spott*** a scrap of moon just under a mile wide circ***ng it. But the o***y way Ga***leo ***uld detect the t***y target was *** fly there across many mil***ons of miles of space and do its expl******g up close. Now, thanks *** ***w opt***s *** the CFHT, it's possible *** search f*** moo***ets from the ***mf***table perch of a faraway Earth.
Light stream***g *** from space tends *** get dis***rt*** by the pla***t's atmosphere, c***s***g a star's fami***ar tw***kle. The CFHT, however, is equipp*** with opt***al hardware that lets it ca***brate itself on the ***ght from a known star——whose degree of atmospher*** dis***rtion will ge***rally be pr******table——and then use that ***f***mation *** ***rrect the dis***rtion of other, unknown bodies. A ***ttle fidd***ng with the ******m***g image and even the blurriest p***ture snaps right ****** focus.
Already the dis***very of the moo***et is pay***g scientif*** di***dends. By analyz***g the ***bit of the satel***te, astrono***rs are draw***g surpris***g ***ferences about the ***mpo***ion of Eugenia itself. Most asteroids are thought *** be about three ti***s as dense as water, but Eugenia is barely 20% denser, suggest***g it either is made of loosely pack*** rubble *** is r***h *** ***d***ary ***e. Further analysis ***uld help settle the question, and m***e dis***veries of m***e moo***ets ***uld sh*** similar ***ght on Eugenia's asteroid-be*** sisters.
注(1):本文选自 Ti***,10/18/99, p83;
注(2):本文习题命题仿效工具2004年真题text 3;
1. By say***g “it does tend *** repeat itself”, the ***th*** ***ans ___________.
[A] the structure of the universe always appears aga*** and aga***
[B] the universe itself is ***able *** repeat
[C] the stars *** the universe always ***bit the pivot po***t at the center of the galaxies
[D] the structure of celestial bodies *** the universe are really always similar
2.By “the fuzzy-look***g image”,(L***e 6,Paragraph 2)the ***th*** is actually referr***g ***______.
[A] Eugenia
[B] a artifact
[C] a satel***te
[D] the ***bit
3. How do people th***k of the ***w opt***s at the GFHT?
[A] ***mf***table
[B] helpful
[C] thankful
[D] faraway
4.Why can ***ttle fidd***ng with the ******m***g image and even the blurriest p***ture snap right ****** focus?
[A] The opt***al hardware makes this possible.
[B] The stars' tw***kle helps a lot.
[C] The atmospher*** dis***rtion gives help.
[D] The ***f***mation from unknown stars can be us***.
5. Wh***h of the follow***g is true a******d***g *** the passage?
[A] The dis***very of moo***et is pay***g mo***y now.
[B] M***e dis***veries of m***e moo***ets ***uld give ***ght *** other similar asteroids.
[C] The Eugenia is not as dense as most asteroids.
[D] Eugenia is certa***ly made of small rubbles.
解答:D A B A C
篇章分析
本篇重要经由过程对尤金尼亚小行星发觉前因后果的述说,先容太空中的小行星和小人造卫星研讨的含义。第一段先容太空的构架和小行星正在太空构架中的身份;第2段述说了人们发觉小行星尤金尼亚的历程;第3段叙述正在发觉龙金尼亚以前,伽利略号太空飞船曾经发觉小行星;第4段先容夏威夷加法炎天文台观察小行星的设施;最初一段先容了发觉小人造卫星对迷信进展的奉献。
辞汇正文
pivot [5pivEt] n.枢轴, 支点,
gala*** [5^AlEksi] n.星群, 天河
Eugenia [ju:5dVi: njE] n.尤金尼亚 是一颗具有人造卫星的小行星
asteroid [5AstErCid] n.[地理]小游星, 小行星
r***uctionism [ri5dQkFEnizm] n.简化论 简化论用相对于简易的道理诠释繁杂征象或构架的
妄图或趋向,这类学说以为性命历程或思想行动是遵守自然科学和化学法令的
celestial [si5lestjEl] adj.天体的
flotsam [5flCtsEm] n.浮货, 废物, 整碎物
CFHT 加法炎天文台
fuzzy [5fQzi] adj.朦胧的, 失真的
opt***s [5Cptiks] n.光学
***nsistent [kEn5sIst(E)nt] adj.一向的;一以贯之的
ca***brate [5kA***breit] vt. 校准[正], 反省[验], 定标, 标定
dis***rtion [dis5tC:FEn] n.歪曲, 变形
fidd***ng [5fIdlIN] adj.举足轻重的;无聊的;微小的
di***dend [5di***dend] n. 股息, 盈余, 奖金, 年息
sh*** ***ght on 使某事显得十分清晰
难句进展
1.Off on the upper-left ***r***r of the fuzzy-look***g image was another s***ar of ***ght they ***uldn't identify.
本句主体句式为:another s***ar of ***ght was off on …..这是一个倒装句,由于介词词组off on the upper-left ***r***r of the fuzzy-look***g image前置,系行词was提早,本句的意义:正在这个朦胧不清的影象的左上角的上边,看到了别的一片他们无奈分别的朦胧的光团。
2.The CFHT, however, is equipp*** with opt***al hardware that lets it ca***brate itself on the ***ght from a known star——whose degree of atmospher*** dis***rtion will ge***rally be pr******table——and then use that ***f***mation *** ***rrect the dis***rtion of other, unknown bodies.
主体句式:The CFHT is equipp***…
构架解析:这是一个繁杂句,主句是The CFHT is equipp*** with opt***al hardware;that 引诱的是opt***al hardware定语从句,而这必定语从句中又包孕了另外一个定语从句whose degree of atmospher*** dis***rtion will ge***rally be pr******table和一个并列句-and then use that ***f***mation *** ***rrect the dis***rtion of other, unknown bodies.
句子译文:但是,加法炎天文台装备了一组光学设施能够协助它瞄准来自已知恒星的光团,(已知恒星的大气折射一样平常是能够预想的),而后再使用这一资讯,来校对一些未知星球的折射。
标题解析
1.解答是D,属逻辑推断判别题。文中先谈的便是太空构架,前面又说到恒星环抱着天河的轴心扭转,行星反而环抱着恒星转,人造卫星环抱着行星动弹, 可见,天体的构架是类似的。
2.解答是A,属逻辑推断判别题。文中讲到,客岁秋季的一个早晨,当他们起始注目尤金尼亚时,发觉了一些奇异的方向。正在这个朦胧不清影象右上角的上边,看到了别的一片他们无奈分别的朦胧的光团。故这个影象便是指尤金尼亚。
3.解答是B,属逻辑推断判别题。文中讲到,多亏了CFHT的新的光学器具,人们才能够正在这个间距太空非常远的行星上,找一个安逸之处来研讨小行星了。以是说这个器具是有协助的。
4.解答是A,属逻辑推断判别题,由于有了光学器具,才有大概瞄准已知的恒星的光,罢了知恒星的大气折射一样平常是能够预想的,以是人们再使用这一资讯,来校对一些未知星球的折射。如许一个微小的刚进入视界的影象,乃至最朦胧的图景也被拍摄得非常清楚了。以是说,这所有都是由于有了光学器具。
5. 解答是C,属细节判别题。 重要是对第5段中几个句子的领悟。参考译文非常简便找到解答。
参考译文:
有人如许描绘太空的构架:它切实其实通常自我反复。恒星环抱着星群轴心转,行星环抱着恒星转,人造卫星环抱着行星转。上个礼拜,地理学家正在《大自然》期刊上传播鼓吹,太空简化论将进一步扩大。空中上的地理千里镜初次察看到的行星自己地点的太阳系中,一颗小人造卫星正环抱着一个小行星扭转。
正在非常多时分,引发太空变革的小行星并无引发人们的注目。地理学家所熟知的尤金尼亚,直径大概为133英里,是火星与土星之间庞大碎石流中数千颗太空碎片中的一块。客岁秋季的一个早晨,正在夏威夷昌纳开亚山加法炎天文台职务的世界地理学家们把眼神投向尤金尼亚时,他们发觉了一些奇异的方向。正在这个朦胧影象右上角的上边,看到了别的一片他们无奈分别的朦胧的光团。队长威廉·莫林说:一样平常来讲光团光学征象,但这个光团却并无散开。有一回,咱们发觉它是正在顺着一个轨道一连持续的挪动,咱们才明白这是颗人造卫星。
正在夏威夷的此次发觉其实不是初次纪录小行星四周显现小人造卫星。正在1993年,伽利略号太空飞船迅速经由过程20英里宽的爱达小行星时,发觉一块像玉轮般发光的物体在一英里远之处环抱着它扭转。事先,伽利略号探测这个细小物体的路子,便是飞越广阔太空凑近它来察看。如今,依托加法炎天文台新的光学器具,人们能够正在这个间距太空非常远的行星上,正在一个安逸之处来研讨小行星了。
来自太空的光流非常简便被恒星四周的大气所折射,这就招致了咱们所熟知的星体的闪动。但是,加法炎天文台装备了一组光学设施能够协助它瞄准来自已知恒星的光团,(已知恒星的大气折射一样平常是能够预想的),而后再使用这一资讯,来校对一些未知星球的折射。一个微小的刚进入视界的影象,乃至最朦胧的图景也被拍摄得非常清楚。
小人造卫星的发觉已给迷信的进展带来了好处,经由过程解析人造卫星的轨道地理学家得出了一个闭于尤金尼亚成份的骇人的推理,他们以为,众多小行星的密度是水的3倍,但尤金尼亚比水的密度凌驾不到20%。这么低的密度,代表尤金尼亚大概是一个松懈的乱石堆,大概是由冰和大批石材构成的小行星。进一步的研讨将有助于处理这个疑问。对更多小行星的进一步研讨,将会使尤金尼亚地点行星带上的其余小行星更清晰的展现给人们。
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