谢谢大家慷慨给俺的金币！
  u7 g. q; j* M7 m9 c4 R俺会更加努力地。" j$ F' ~) v0 i' y0 @  B
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7月3日 第二篇$ T8 L% W% t; p9 ~
分类下 biology 3
0 ]6 z, u" {9 [/ @, a  {Questions 47-50 Listen to part of lecture given in a marine biology class
0 w3 L' ]. j7 OTo us, the environment which fish dwell often seems cold, dark and mysterious. But (all the) there are advantageous to living in water, and they have played an important role in making fish what they are. One is that water isn’t subject to sudden temperature changes, therefore it makes an excellent habitat for a cold-blooded animal. Another advantage is the water’s ability to easily support body weight. (Prode pleasant) Protoplasm原生质 has approximately the same density as water, so a fish in water is almost weightless. This weightlessness in turn means two things. One, a fish can get long with a light weight (an) and simple born structure; and two, limitations to a fish’s size are practically removed. & k; y. D7 A& O1 q+ q

8 P1 x# o2 a! K/ _3 K  l1 ]! hYet there is one basic difficulty to living in water-the fact that (is) it’s incompressible. For a fish to move through water, it must actually (shave) shove推 it aside. Most can do this by (weaving) wiggling摆动 back (in forcing and) and forth in snakelike motion. The fish pushes the water aside by their forward motion of its head and (was curved) with the curve of its body and its flexible tail. Next, the water flows back along the fish’s (narrow win) narrowing sides, closing in at the tale, and helping the fish propel (its) itself forward. ! ?: b) J$ S, ?  @. y  r6 L
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The fact that water is incompressible has (little) literally精确的% ]  ?2 O& W: `+ \" ?3 x
(relationship) shaped the development of fish. A flat and angular shape can be moved though water only with difficulty. And for this reason, fish have a basic shape that is beautifully adapted to (the due for) deal with this peculiarity特性.

7月3日 第三篇# N" J7 q8 v7 m" o! [
分类下 biology 4- G0 j' j$ H* l: D% B$ _8 c

: Q* \/ {3 e  Q5 ]7 E5 |Questions 40-43 Listen to a museum guide describing one of the museum exhibits  A  D  b# {" U( D
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We’ve just seen two contemporary large birds that cannot fly: the emu and the ostrich鸵鸟, over here (that) is an interesting specimen from the past. This stuffed animal is not the giant penguin企鹅 as it appears to be, but an auk海雀. This is particular kind of auks very (where) rare, only 78 (giants) skins are (now) known to exist, and most are not preserved as well as this one. The great auk, as you can see, was a rather large bird and it couldn’t fly either. However, evidence suggests the auk was an excellent swimmer and diver. Unfortunately, those abilities did not protect it from being easy (perferer) pry for hungry (sellers) sailors (two) who years ago sailed the very cold and often icy waters of Greenland, Iceland and Scotland. In fact, records indicate the auk was rather tasty and (their) that its eggs…excuse me, that its eggs and fathers were useful as well. Still, it isn’t clear what other factors (let) led to the big bird’s (demand) demise (the round) around 1844, the last time anyone reported (thing) seeing one. Of course, we believe it is important to take extra precautions to preserve the remaining great auk skins. After all, these specimens should (be) prove invaluable for future scientific research. Does anyone have any questions before we move on to our next bird exhibit?
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7月3日 第四篇! b9 {% s- q# }/ t: g% P
分类下 biology 5
! p  n4 g3 q1 }  D. u* }又遇上一篇较容易的。。。除了那个名词。。。
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5 l, B: n0 k  {2 c" ZQuestions 44-46 Listen to part of a lecture in a zoology class
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% ]- u0 K' ~6 x' \! I( O+ w; SBefore I tell you about the interesting discovery related to Tyrannosaurus暴龙 rex雷克斯, I need to review you 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 range, no matter what the outside temperature is. As a result, a warm-blooded animal will usually active in both cold and hot weather because its body temperature can adjust to the temperature of (the) its environment. # c4 @8 J" f* S& I( m  E# A

& {" Z5 @8 @4 W# L" S& C7 W) \4 MOn the other hand, cold-blooded animals such as most reptiles, amphibians and insects are unable to create enough heat internally to raise their temperature above the temperature of the environment. So, for example, the temperature of a cold-blooded animal falls when the environment is cool. 3 j' w1 v3 H# s3 O3 E$ o

2 I- k) k3 I' K4 Z3 rI hope this distinction is clear, now, moving on to Tyrannosaurus rex. You may know (the) that dinosaurs being reptiles are generally believed to have been cold-blooded. (While) Well, a recent research study found that the chemical composition of the bones of Tyrannosaurus rex was (consisted) consistent with the bones of an animal that has a very narrow range of internal temperature, indicating that it was probably warm-blooded.7 g5 x3 h4 H+ m1 k" _

这个人啊，这个人，听写只为了金币啊，是为了自己用鲜血把刀磨亮，到考场上用它杀别人( e& A- U3 \' a: r8 q1 S
呵，突然发现我是个恶毒的女人，，，咦，，女生吧

NEVER TOO OLD TOO LEARN:> 共勉共勉

这几天回家了，在纸上听写了三篇，就不上传了，居然没扣俺的金币，庆幸中。。。3 I# G3 u! |: n- W  t
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这是俺昨天听写的一篇和今天听写的两篇。
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7月8日第一篇( \& H& O& T& y+ [4 [8 v
分类下 biology 10
" O& q0 f' W* `+ X6 \- d' F0 S1 lQuestions 39-41 Listen to part of the talk in a biology class.
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Before moving on to a new topic, I want to finish (about unique) up our unit on arachnids蜘蛛 by looking at what (you’ll) may see very unusual (ask by) aspect of spider behavior-a species (very) where young spiders actually consume the body of their mother." E( A& `- E2 |, r2 U
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Unlike most other spiders, this species lays one-and only one-clutch of一次产的 forty eggs in her lifetime. The young spiders hatch in (mis-brain) mid-spring or early summer, inside a nest of eucalyptus桉树 leaves. Their mother spends the warm summer months bringing home large insects-often ten times (the) her weight-for meals. The catch is always significantly more than her young spiders can eat. So the mother (fights) fattens herself (by) up on, n& f! y' i1 p9 }* A7 o( {
this extra prey and stores the nutrients in her extra unfertilized eggs. As the weather turns colder, there are fewer insect prey to hunt. That’s when the nutrients stored in those extra eggs begin to seep into the mother’s blood stream. So, when there are no more insects to feed to the young spiders, they attach themselves to the mother’s leg joints and (joint) draw the nourishment by sucking吸 the nutrient-rich blood.
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After several weeks, the mother is depleted of all nutrients, and she dies. But then, how do the young get the nourishment? They start to feed on one another. Now, if you recall our discussion of Darwin, you’ll see the evolutionary value of this: only the strongest spiders of the clutch will survive this cannibalism自相残杀. And the mother spider will have (the shore and) ensured that her genes have an increasing chance of survival though future generations.
' }/ P; x" N, `% S7月9日 第一篇
2 w' _' p& `5 b" s: F分类下 biology 11
  ~0 S, O5 ?/ K$ QQuestions 39-43 Listen to a guide talking to a zoology class on a bus to a zoo.2 V* t4 E. p& n: }

, F7 s; X% J+ E, L- R& j/ U1 n. fNow (our entry) we’re entering kangaroo country. In all, there are more than 50 different species of kangaroo, and the advantage of zoos like ours is that you see (the marine) them in their natural habitat. The ones we have all live in grasslands.
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On my right you can see one of the biggest types: the red kangaroo. It travels about 20 miles per hour. It looks like (cardword) hard work, but (having) hopping actually (like) 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 (line) length of each jump longer.
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Let’s stop here for a minute. Take a look over on your right at this group of kangaroo’s resting. Can you see that their (year’s) ears are moving? Hearing may (what) well be the kangaroo’s most important (signs) sense. (The) Their two large ears can move independently, so sometimes one ear is pointing forward and the other toward the rear后面. Kangaroo’s (I said) eyesight is also excellent. They have a wide-field vision, and like most grazing食草 animals, they are specially good1 d0 D7 X. l5 w1 f1 X
at
* f2 g+ x1 C# x3 W% f# k4 edetecting movement.
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Before we move on, I’d like to point out one more thing: if you look closely you can see a joey幼兽-that’s a baby kangaroo-peering (at their) out of its mother’s pouch. Before long that joey will (active) be out of the pouch for good. The mother will push it out by the time it’s eight months old.
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" C6 z7 C6 ?- Y% ?4 K7月19日 第二篇1 i3 F3 v7 q7 t1 a) K' A
分类下 biology 12
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# N* z- c" A( xQuestions 39-43 Listen to part of a talk given by a guide of a zoo.
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# S7 @4 {4 S8 lIf you like the colorful animals we just saw, you are going to love these next animals-frogs. You may not normally think of frogs (has) as being colorful, but these frogs definitely are. They are the dart-poison frogs of the Central and South of America. Look at their striking colors-often yellow with black strips or deep-blue with black spots点.
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Beyond being nice to look at, these markings have a purpose. They warn predators that these frogs are poisonous. When threatened, these fogs (create) secrete a substance though their skin that would easily kill whatever animal might try to eat them. Their bright colors communicate this, and so most animals tend not to hunt them. 2 ]/ t! h! R, O8 b* z8 {+ y
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Now speaking of hunting, for centuries, these frogs were sought after by hunters. As you may think, the hunters didn’t want to eat the frogs, but rather they captured them for their poison. They would add the poison to the tips of their hunting arrows-of course, nowadays, most hunters use guns.
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These days, dart-poison frogs are of less interest to hunters than to medical researchers. Researchers believe that they can make new (hard) heart medicine from the poison, because it (exerts) acts as a (simulate) stimulant on the body’s nerve system. Researchers think they could use it to stimulate a weak heart. , l4 l  \. E# W5 L' `1 d" W8 _

1 `2 G' p* a+ x$ Q  TThere is, however, a problem with doing research on these frogs. Those (live) that are caught in the wild will produce their poison until they die. However, those that are born in captivity圈养 like the ones you see here, will not produce any poison at all.

引用:

原帖由 popcornwl 于 2008-7-3 23:41 发表 / t- A/ F5 U0 o# w# ?7 |
这个人啊，这个人，听写只为了金币啊，是为了自己用鲜血把刀磨亮，到考场上用它杀别人
; K- }7 ^3 r% q+ k! H# \! ]呵，突然发现我是个恶毒的女人，，，咦，，女生吧

" z8 O0 @/ r! L. s哈哈，俺爱金币，俺爱金币，俺爱听写。。。女生的话可以多给金币吗？+ }8 R5 L; g8 p' V) b

我也爱金币  谁也给我一点？  新人的话可以多给金币吗？~~~~% E+ U  |& Y) F3 f% P0 H+ j
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支持lz

路过 支持 大家都要加油～！

不补拉，前面多给了十个，加油

进来鼓个掌，加油哦