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用时2个多小时
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错误真多......
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晕呼 看来最近阅读训练也得加强!( k/ }; X- T4 ?, M, v* _
口语不能断 昨天没说什么今天口吃了就....." t5 \7 F, [) z$ _" y" q
今天练了几个 感觉一般
8 U- q) ~) {! M0 I5 I然后 总结了人物类的2 个
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6 S- o" m8 B$ E- A% V% q, e专业名词也还多# P6 h# J% D1 _# @
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鱼
$ t+ D: A4 L8 UTo us, the environment in which fish dwell often seems dark, clod, mysterious, but they are advantages to live in water, and they have played an important role in making fish what they are. One is that water is not subject to sudden tempature(tempearture) changes, therefore they makes an excellent habitat for a cold blooded animal. Another advantage is the water’s ability to easily support body weight. Plotonza(Protoplasm) has approximately the same density as water, so a fish in water is almost weightless. This weightless in turn means two things. One, the fish can get along with a light weight and simple bone structure. And two, limitations to a fish’s size is practiculary(practiculary) removed, yet there is one basic difficulty to live in water, the fact that is imcompressable(incompressible). For a fish to move through water, it must actually sharp(shove) it aside. Most can do this by weggling(wiggling) back and forth in snakelike motion. The fish pushes water aside by the forward motion of its head and with curve of its body and its flexible tail. Next, the water flows back along the fish’s narrowing sides closing in at the tail, and helping fish prepare(propel) itself forward, The fact that water imcopressible(incompressible) has literiterly(literally) shaped the development of fish. A flat and angle(angular) shape can be moved through water only with difficulty. And for this reason fish have a basic shape that is beautifully adapted deal with activity(peculiarity).
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We just seem two compeperoly(contemporary) large birds that cannot fly, the emu and ostrich. Over here is an interesting specimen from the past, this staff(stuffed) animal is not the giant penguin it appears to be, but an oak. This particular kind of oak(auk) is very rare, only 78 skins are non(known) to exist, and most are not persevered(preserved) as well as this one. The great auk as you can see was rather very large bird and can not fly either. However, the evidence suggest that the oak was an excellent swimmer and diver. Unfortunately those ability did not protect them from being easy pretator(prey) or hungry sellers(sailors) who yeas ago sailed the very cold and often icy waters of Green land, Iceland and Scotland. In fact, records indicate that auk was rather testly(testy) and the eggs and feathers useful as well. Still it is not clear what other factors led to the big bird’s to mise(demise) around 1884,
- a6 n" ^1 e8 n6 P" L5 i6 a' ]The last time anyone reported seeing one. Of course, we believe it is important to take extra preserve(precaution) to preserve the remaining the great auk skin. After all, these specimens should prove invaluable for future scientific research. does anyone have any question before we move on to next exhibit?