Amissrosa的作文帖--中英作文底子都不好...11/24將第一次考托福 求狠批><!!!感謝各位前輩!!

正儿八经潜水

Thereading passage and the professor both discuss the topic of the remains ofblood vessels, red blood cells, and collagen matrix in T-rex fossils. However,the professor discords with the ideas discussed in the article. He thinks thatthose remains were disregarded（被忽视不对，可以换个说法）and then offers several reasons to oppose.


Thefirst thing mentioned in the passage is that the fossilized leg bone revealedbranching channel which left soft organic tissues and considered as the remainsof blood vessels. However, the lecturer points out the opposed idea. He（The professor）saysthat, after a creature died(creature’s death), bacteria occupy organs, including the hollow ofbones, and they left traces of moisture residue which is not relative to bloodtissue.

Seconds,the professor argues the presentation of sphere discussed in the article. Heindicates that the spheres in T-rex fossils were also discovered in otheranimals' remains; however, these animals don't have red blood cells. Besides,it might be some mineral that makes the sphere of(in the fossil of)T-rex reddish.

Thethird point in the passage is the presence of collagen. Nevertheless, thelecturer mentions that the oldest collagens were found no longer 100,000 years;that is, there is improbable that there was the collagen of T-rex because T-rexwas older than 700,000 years. Those remains of collagen may be left by othercreature, such as human skin.

Inconclusion, the professor points out three dimensions to oppose the ideas inthe passage. The professor disagrees that there are remains of blood vessels,red blood cells, and collagen matrix in T-rex fossils.