建议很中肯 谢谢!!!
9.21 综合 第二点确实木有写好啊 9.20综合写作:TPO24
The reading material holds the view that Tyrannosaurus rex still contains remains of the actual tissues because of the insides of its leg bone. The lecturer, however, remains skeptical about this idea and puts forward three reasons that conflicts(conflict) with that of reading material.
To begin with, the reading thinks that small branching channels found might indicate the existence of actual blood vessels of T.rex. But according to the lecturer, bacteria colonized in the bone and produced the organic substances inside the bone. The remains of blood vessels could actually be soft moist residue(left by bacteria).
Furthermore, the presence of spheres is found in other primitive animals as well as T.rex which implies that what was found in the bone was actually reddish mineral. (这一段还算完整,不过有点少诶,detail缺少了一个,primitive animals do not contain red blood cells.)
Moreover, the passage says that collagen was found in the bone, but the lecturer negates this idea. He points out that collagen was not able to be existent for more than 100,000 years. However, the bone was dated back to 700,000 years ago. Therefore, he thinks that the collagen was from other (recent) sources such as researchers' skin instead of the bone itself.
To conclude, the passage thinks blood vessels, red blood cells and collagen matrix prove that the bone was from T.rex(这里表述有点问题吧~应该是residues represent blood vessels, red blood cells and collagen matrix.). But the professor provides several conflicting reasons to show(that) the conclusion from reading is not persuasive.
Conclusion:听力细节还得注重,尤其是第二个主段,注意语言方面的准确性~
-- by 会员 婷婷connie (2012/9/21 20:51:42)
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