婷婷connie的作文帖~勇者创造机会，愚者等待机会

d0gzi

9.20 综合The reading and listening passage discuss the topic over the discovery of T. rex, a dinosaur fossil. （T.G. REX是霸王龙。所以T.G.REX的fossil才是a dinosaur fossil。同位语不对应）The writer holds that the inside materials seem to be remains of the actual tissues of the animals. The lecturer, however, casts doubt on it for following points.

To begin with, the lecturer contradicts the perspective that many small branching channels inside represent the remains of actual blood vessels. He explains that some bacteria would colonize the hollows in the animal's bones after it died. Thus, this soft and moist residue, made of organic materials, may be traces left by bacteria. 细节听得很清楚，好棒。
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Moreover, the lecturer also opposes the view given by the writer that the presence of spheres could be the remains of red blood cells. To illustrate it, he demonstrates a basic fact: this kind of spheres are also found in some primitives （居然这个词也会写= =）in the neighborhood, which contained no red blood cells. According to him, perhaps these reddish material is the mineral piece such as iron.

Furthermore, the lecturer questions the existence of collagen found in the T. rex's leg bone .As never had researcher found collagen in fossils older than 100,000 years, this 70-million-year-old fossil cannot hitherto maintain the collagen. （原因讲一下就很好了，因为COLLAGEN 不可能维系很长时间）Besides, the lecturer contends that this collagen may come from a recent source-the skin of researchers who are handling （过去时）the bone.


哈哈，发现每次都会改到婷婷的一篇，而且每次都写的挺好的~
分论点全对，细节也多，而且你到底是怎么做到那么多诡异的单词都会拼写的……= =！ 除了我红色标出来的地方其他都挺好的

加油！！