6-9考试，作文急求改。

苦逼八戒

大家好，一直也没有在论坛贡献过什么，眼看就到考试了，才开始复习作文，前两日从 lxc1989614 学习到一个综合写作的结构不错，所以直接套用了但是内容估计还要斟酌，特地来发帖求助，谢谢大家，帮忙给改一下，两篇综合。不胜感激
TPO24

The lecturer completely rejects the idea presented in the reading passagethat scientists probably found out some actual tissues in a 70-milliom-year-old fossil, which was called the T.rex. In the professor's opinion, the theory about actual tissue exists in afossil is skeptical.

The lecturer contradicts the first point in the passage that the samllbranching channels found in the fossilized bone probably not  be left by the blood vessels because, duringthe fossilization, bectria will occupy the cracks inside the bones and left somesoft tissues.

The speakers goes on to disagree with the claim of author that sphereswere found in parts of the bone by microscopic examination, what's more excitedthing is the dark red center was observed inside the sphere. On the contrary,the lecturerargues that scientists, actually, can not sure about the red bloodcells were observed. The red spheres probably are some red minerals.

Finally,the spoker challenge the final point of the origion  of collagen. The professor points that the T.rex was dead 70million years ago, it is too long to believe the collagenexisted when the T.rexdead. The collagen people found with T.rex probably havea closer origin to now, and maybe it was left by the scientists who clean theT. rex's bone fossil.

苦逼八戒

The lecturer completely rejects the idea about three theories that explainthe decline of yellow cedar in northwesatrn North America. In the professor'sopinion, these three theories are inadequent, and scientists still don't knowthe exact reason.

The lecturer contradicts the first point in the passage that the declineof yellow cedar probably comes from the insects' breeding, specially from thecedar bark beetle. He contends that the yellow cedar actually have a defensemechanism, and with it, the cedar's leaves have posion that can prevent thebeetle's eat.

The lecturer goes on to disagree with the claim of author that bearscontribute to the decline. On the contrary, the professor points out that theyellow cedar covered a pretty large area, and this species still suffering adecline within somewhere don't have any bears.

Finally, the professor challenges the final point of climate changehypothesis. Just as the professor said the day-to-day temperature change does affect the survivle of yellowcedra, and the trees rooted in a higher elevation died more, but the turth isinverse. In a lower and warmer condition, the cedar suffers more.

Crystaljoy

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