引用:

原帖由 Horse 于 2008-5-2 16:53 发表
4 @! H. @7 y5 N/ N上一篇你结合的很好……生物学必听的要素一定要时刻自己……另外如果将来听更长的文章时（比如巴郎什么的）也要时刻记住

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谢谢小马老师的课后辅导~~: T6 M4 _5 l, `1 U0 N7 q0 V  I2 z
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5月3日0 ]2 Y; I- v/ {4 X3 B. H) `
感想：第一遍边记笔记边泛听时，前面的复习内容即冷血和恒温动物的特性都听得挺明白的，自以为全文都懂了。但最后那段，也就是本文的重点，由骨结构得出霸王龙应该算恒温动物的部分根本没把握住，所以第一道主旨题我会答错。最后一道题为什么要提到霸王龙，我也可能得靠蒙……一句一句听的时候感觉还蛮顺畅，所以这篇看着不花，好多小词的拼写还是会出错。
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10:15---11:16
" E: P* N9 @+ |(51) 生物：第5篇（Tyrannosaurus rex霸王龙）---难度级别：$$半
6 X7 S1 O5 N- ^2 j( l- s8 JBefore I tell you about the interesting discoveriy related to Tyrannosaurus rex霸王龙, I need to review something we studied last semester---the difference between what (are) <commonly> (called) cold-blooded and warm-blooded animals. In warm-blooded animals, birds and mammals, for example, the body temperature <normally> (stays) within a narrow ranges, no matter what the outside temperature is. As a result, a warm-blooded animal (is) usually active in both cold and hot weather. Because its body temperature can adjust to the temperature of (its) environment.
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' R9 B$ c; I" LOn the other hand, cold-blooded animals, such as most reptiles, <amphibians> and insects, are unable to create enough heat (internally内部地) to raise their body temperature above the temperature of the environment. So, for example, the temperature of the cold-blooded animals falls when the environment is cool." V- M9 [6 Z  C4 a7 B
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I hope this distinction is clear. Now, moving on tyrannosaurus rex…you may know that dinosaurs, being reptiles, are generally believed to have been a cold-blooded. Well, a recent <research> study found that the chemical <composition> of the bones of Tyrannosaurus rex was <consistent一致的，符合的> with the bones of an animal that has a very narrow range of internal temperature, indicating that (it) was probably warm-blooded.1 f' w; @3 l! P/ U5 V
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[ 本帖最后由 穗棉布族 于 2008-5-12 17:04 编辑 ]

感想：2 t) U$ H# n# ]- H, G& @0 r
第一遍泛听时依旧不能彻底听明白说了什么……严重打击自尊心。听从句和插入语的水平亟待提高，一有从句和插入语，整句的主旨就会把握不准。3 q* Z( u2 C( J7 t

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(52) 生物：第5篇（eletric fish）---难度级别：$$$半 ' L* g, y* X. U3 x& o( [
This room is devoted to eletric fish. The (eel鳗in the tank) behind me can produce (a) strong (jolt震动 of) eletricity to (stun把…打晕，使昏迷 its) prey. But most of the fish (in) here produce only weak electrical (impulses脉冲；冲动) that are useful for (navigating领航，导航), locating food, and even for communicating.' k8 P/ c7 e' L8 t
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The (knife) fish is a good example. This fish navigates using tiny <receptors感受器> in (the skin) that are sensitive to electrical impulses. The knife fish produces an electrical signal, and the receptors in the(its) skin let it know when the signal (it distorted歪曲，扭曲，使变形) by a tree (root), or some other (obstacl障碍物), so it can go (around it).
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( b, i' v( Q1 F1 Y1 YFish also use their ability to produce (and detect) electrical impulses to communicat. They can tell each other what species they belong to, how big they are, and whether they are male or female. We have a tank here that`s specially(equipped<v>配备，装备) to convert (the inaudible听不见的) signals (the fish) produce into sounds you can hear when you put on these (headphones耳机 注意拼写时别忘了s). I urge强烈要求，鼓励，驱策 (you) all to listen (in) when I`m done speaking.# b7 O1 ]3 {5 F& j& _& k! |" n* e
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Now have a look at the eletric (rays). Rays are especially interesting to medical researchers, because of the (organs器官) they use to produce eletricity. These organs contain a chemical that carries signals from one (nerve神经，神经细胞) ending to the next, not only in rays, but also in people. By studying these organs, scientists hope to learn more about <diseases> interrupt (the transmission of) impulses from one nerve to another.4 r* }9 o6 R  w! A3 ?  |% e$ h
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  \% \* D2 D5 S5 U5 B/ ?% O5 Q$ X8 a[ 本帖最后由 穗棉布族 于 2008-5-12 17:07 编辑 ]

5月5日
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4 Y' i' i0 ]! p5 ]# X(53)生物：第7篇（mouse）---难度级别：$$$$ (什么都想记，没把握住主旨)
  q- ^  j' s3 L9 Y: v" B: lHuman populations near the equator have (evolved演变，演化dark skin) over many generations because of exposure暴露，曝光 the (fierce强烈的) rays of the sun. A similar <phenomenon> has also occurred in other parts of the animal kingdom. The African (grass) mouse is a good example. Most mice (are nocturnal夜间活动的，夜间的，夜间发生的), but the African grass mouse is (active during) daylight hours. This means that it spent its days searching for food in the semidry bush (and scrub灌木丛) habitats (of eastern and) southern Afican. Its (fur is striped有条纹的), like a (chipmunk`s金花鼠, which helps it blend in) with its environment. Because it spends a lot of time in (intense强烈的) tropical sun, the grass mouse has also evovled two (separate不同的safeguards保护措施；保护) against the Sun`s (ultraviolet紫外线的) radiation. First, like populations of human (in this region of the) world, the skin of the grass mouse contains lots of (melanin黑色素), or dark pigment黑色素. Second, and quite unusual, this mouse has a layer of melanin-pigmented tissue between (its skull) and skin. This unique “cap” provide an extra measure of protection for the grass mouse and (three) other (types of) African mouse like rodents that are active during the day. The only other species (scientists have identified) with the same sort of skull (adaption) is thewhite (tent-making bat一种生活在树洞里的美洲蝙蝠) of the Central American (tropics). Although these bats sleep during the day, they do so (curled头发卷曲的) up with their heads (exposed使暴露，曝光) to the sun.2 ]' }6 }- F; e$ U: l1 l

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[ 本帖最后由 穗棉布族 于 2008-5-12 17:10 编辑 ]

谢谢楼主看我的听写稿，其实你的帖子我常来，每天我都是四处逛完了才硬着头皮听写
$ R: R6 M8 H: |$ l5 \( [写听写帖之前的俩月我就听了二十篇在本上听，空行写，结果不够改的
) h. X# h: x5 N( p# C4 A" ~# \7 h看见你们的听写帖才决心也来和你们一起听
9 W* y9 ], [3 d我昨天考试了（只当昂贵的模考了）
+ ~6 W( y) c! s如果不是开始听写，昨天的糟糕足以让我放弃
9 k. ~& e0 Z. V1 \谢谢楼主

你不知道我的基础有多差，我就是现在开始不眠不休，也够强能考好，加之，我又闭门造车，也不大算报班，进步就基本看不到。唉！加油吧

楼主加油！！！2 C! _8 S0 M$ E/ X
我5月10号考完和你一起继续听力！不管考的好坏，下次都一定会更好！* T! Q9 b$ V& w- J, P; ?
哈哈，一起加油！！！ :victory- W; c. |/ Q) A8 ?% s" I5 g- m" q
坚持一定会成功，时间问题。。。

大家一起加油~！, H4 N& H) i- _9 m/ Z3 ~+ O
我今年二月受了沉重打击后才决定要考出去，报了外地6月7日的考试，但那时没人给规划复习安排，结果导致我3月8号上强化班前都以学GRE为主(这么弱的底子学GRE可谓蚂蚁啃骨头啊~)。3月8号既是托福强化班开课，又是GRE强化班开课，上午和下午上完托福，晚上又得去楼上学GRE。2个礼拜后我意识到这样子学法两个都学不好……所以开课2个星期后延期了GRE班，正式开始学托福，同时又报了11月初的一次T考，也就是说10月底考完G，没过几天我又得去考T……
9 Y: T1 F1 q5 U晃晃悠悠一个半月过去了，离考试越近心里越没底。如果6月能考过，11月的就不用考了，也可以一心一意复习G了，唉~~老天爷保佑我吧！% ~8 M! \) x4 h. M7 |9 d6 ]4 m: I

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(54)生物：第8篇（classification of trees）---难度级别：$$$半
6 M. R9 u3 J9 M, m; D$ g  Q7 COK. In the last class we talked about the classification分类，分类法，等级 of the trees, and we ended (up) with a basic description of (angiosperms). You remember that those (are) plants with (true) flowers and the seeds (that) developed inside fruits. The common (broadleaf阔叶) trees we have on campus (fall into this category范畴；种类，类型), but our (pines) don`t.0 I" M# F) i3 y

6 Y2 D) ]9 h. n  H7 e6 eNow, I hope you all followed my advice and wore comfortable shoes because, as I said, today we are going to do a little (field) study.4 P( j& W/ R$ l# O

+ l- N% S" Q1 J- S' |; _" CTo get started, let me describe a couple of the broadleaf trees we have in (front of us). I`m sure you`ve all noticed this big tree next to (Brant Hall). It`s a black (walnut胡桃属植物，胡桃，核桃) that must be 80 feet tall. As (a) matter (of) fact, there`s a (plaque匾) identifying (it as) the tallest black walnut in the state. And from here we can see the beautiful (archway拱门 of) trees that as(at the) commons. They`ve American (elms榆树), the ones (along) the Commons were planted when the college was (founded建立) a 120 years ago. Thay have the <distinctive特殊的，独特的，不寻常的> dark green leaves that looked (lopsided一边大一边小的；一高一低的；不对称的) because the two sides of the leaf are (unequal). I want you to notice the elm (right outside) Jeckson Hall…Some of its leaves seem (have withered干枯，枯萎，萎缩) and turned yellow, maybe due to (Dutch elm) disease. Only a few branches seem affected so far, but if this tree is sick, it`ll have to be cut down.
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(55)生物：第9篇（wasp黄蜂）---难度级别：$$5 u: g+ A0 t! u" ?
Today I want to talk (to you) about the wasp and their nests. You`ll recall that biologists divided <species> (of wasp) into two groups: <solitary单独的> and social.
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Solitary wasps, (as the) named implies, do not live together with other wasps. In most species the male and the female get together only to mate, and then the female does all the work (of) building the nest and providing food for the offspring by herself. Solitary wasps (usually make) nests (in) the ground and they separate the (chambers房间；动物的腔，室) for (individual) offspring with (bits小片，小块 of) grass, stone, or mud, whatever (is handy有用的，方便的，手巧的).
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What about social wasps? They form a community and work together to build and maintain the nest. A nest begins (in the spring) when a fertile female, called the queen, builds the first (few) compartments of the nest and lays eggs. The first offspring are small females that can not lay eggs. These females, called workers, then build a lot of new compartments, and the queen lays more eggs. They often care for the new offspring and defend the nest with their (stingers刺). By the way, only female wasps have stingers. , r$ o8 I% c8 D

/ i8 W; [0 x, ?" @0 GMost social wasps make nests of paper. The females produce the paper by chewing up plant fibers纤维 or old wood. They spread the paper (in thin layers to) make (cells) in which the queen lays eggs. Most of you, I`m sure, have seen these nests (suspended吊，悬挂) from trees. They may also be built (underground) in (abandoned rodent burrows洞穴).
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' b+ g5 H6 Q9 ?[ 本帖最后由 穗棉布族 于 2008-5-12 17:21 编辑 ]

感想：6 E  U! G: H" S* q
太多小词耳朵没听出来了。
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(56)生物：第10篇（spider 蜘蛛）---难度级别：$$$$3 ^- {2 Y' f# A4 z; Z
Before moving on a new topic, I want to finish (up) our (unit on arachnids蛛形纲动物) by looking (at what may seem) a very unusual aspect of spider behavior---a species (where) the young spiders actually <consume> the body of their mother.5 P; P2 L  q* X4 j0 M* p/ C/ J. S

1 n* P4 G9 S( o: iUnlike most other spider, this species lays one---and only one---clutch一次产的卵或孵的蛋 of 40 eggs in her lifetime. (The young) spiders hatch in (mid-)spring or early summer, (inside a nest of eucalyptus桉树属植物 leaves). Their mother spends the warm summer (months) bringing home large insects---often 10 (times) (her) weight---for meals. The catch is always <significantly> more than her young spiders can eat. So the mother (fattens<v>育肥，把…养肥) herself (up) on (this) extra prey and stores the <nutrients营养品> (in) her extra (unfertilized) eggs. (As) the weather turns colder, and there are fewer insect to hunt. That`s when the nutrients stored in those extra eggs begin to (seep渗出 into) the mother`s (bloodstream血液). So, when there are no more insects to feed to the young spiders, they attach themselves to the mother`s leg (joints接合处) and draw <nourishment> by (sucking吸，吮) the nutrient-rich blood.
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# W! ?2 i) r( t; \, I1 UAfter several weeks, the mother (depleted耗光或使用完供给、精力、金钱 of) all nourishment and she dies. But then how do the young (get) nourishment? They start to feed on one another. Now, if you recall our discussion of Darwin, you`ll the evolutionary value of this: Only the strongest spiders of the clutch will survive this “<cannibalism同类相食>,” and the mother spider will have (ensure that her) <genes> have an increased chance of survival through future generations.
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(57)生物：第11篇（Kangaroo袋鼠）---难度级别：$$$
( e& D6 v0 `4 \5 G9 T- F! W$ SNow we`re entering Kangaroo Country. In all, there are more than 15 different species (of) kangaroo, and the advantage like zoos (like) ours is that you can see (them in their) natural habitat. The ones we have all live in the grassland.
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0 k. F$ r) F, e! X* {4 q; Z( mOn my right, you can see the one of the biggest type: the red kangaroo. it travels about 20 miles per hour. It looks like hard work, but (hopping单腿跳) actually lets the kangaroo conserve more <energy> than another animal (could) when running on four legs. In fact, (up to a certain) point, the faster a kangaroo goes the more energy it conserves. Rather than taking more (hops to) increase speed, the kangaroo makes the (length) of each jump longer.; E' l5 i* u2 B! [9 D3 P: J

+ p4 |# W/ z. T$ sLet`s stop here for minutes. Take a look (over on your right at this group of) kangaroo resting. Can you see that their ears are moving? Hearing may well be the kangaroo`s most important sense. Their two large ears can move independently, so sometimes one ear (is pointing forward) and the other towards <rear后面>. Kangaroo`s eyesight is also excellent. They have wide (field视野，范围 of) vision and, like most (grazing牧场) animals, they are especially good at <detecting> movement.7 Q& T( v& U9 D! E

8 ?) N, `& m8 sBefore we move on, I`d like to point out one more thing: if you look closely, you can see a (joey幼袋鼠)---that`s a baby kangaroo--- (peering out of) its mother`s pouch育儿袋，小袋. Before a long that joey will be out of the pouch (for) good. The mother will push it out by the time (it`s) eight months old.+ y! v/ Q$ p7 q5 m& m7 i, i* x& l  }
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1 H* R) K5 j! l3 n. d+ i[ 本帖最后由 穗棉布族 于 2008-5-12 17:21 编辑 ]

多读几遍spider这篇文章……

引用:

原帖由 Horse 于 2008-5-7 23:37 发表
5 E, A$ l5 ^2 H" v# c多读几遍spider这篇文章……

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( i8 ]5 S  |% b哎呀~小马老师又现身了~
7 m& }% w# T$ i- ]4 j本来我说挺晚了洗洗睡吧，您一出现，我当即决定把《场景下》最后一篇没听完的生物文章(Frogs)也听咯~. p1 _% V4 R9 w! t+ k+ }8 s% Q
明天醒过来后一定多读几遍spider！！洗把脸先~~1 c1 r3 I) m* Z; M. X! P6 X

% Q+ [2 ?: A$ i7 I5 d: e# O老师您也早点休息，注意身体~~祝小马老师身体安康，万寿无疆~$ e- p0 o$ E: y5 g+ F4 x+ E

) N3 _" ?: ]% Q! Z. j[ 本帖最后由 穗棉布族 于 2008-5-8 00:51 编辑 ]