20分钟一遍写,有很多的毛病是一定的.我想这样真实些,更可以看出自己的不足. 我简单改了下单词, 有些没听出的地方… What the passage demonstrates is the Anasazi population disappeared due to global warming and summer drought. Although there are some evidences to support that view in this article, the professor still refutes it with more details and theory. The passage advocates that it was the summer drought because of global warming that expelled Anasazi out of Chaco Canyon. However, the speaker demonstrates that the weather changing did not bring any influence on the area of Canyon even though it happened in ancient time. The reason is that those trees in Canyon did not affected by globle warming. Hence, weather problem cannot be strong enough to prove this perspective. The speaker also alleges that irrigation system was not essential at that time. It should not be one of the reasons for Anasazi left. Around that time, Anasazi might store food and water to survive?? when suffered from shortages of water. This point of view is totally different from the passage. Finally, everything happened is not definite as it could not be serious for Anasazi to move out. They were replaced might be under a war from other tribe. It also might be some kinds of disease or they pursued for better farm land. All in all, the contents from the article cannot show its view effectively. And the speaker refutes it in his lecture in the end.
What the passage demonstrates(好词) is the Anasazi population disappeared due to global warming and summer drought. Although there are some evidences to support that view in this article, the professor still refutes it with more details and theory. (这句好,值得借鉴啊,呵呵)
The passage advocates that it was the summer drought because of(感觉用because of 不流畅,用caused by会更好点) global warming that expelled Anasazi out of Chaco Canyon. However, the speaker demonstrates that the weather changing did not bring any influence on the area of Canyon even though it happened in ancient time.(这句话太绝对了,说成影响小好一点) The reason is that those trees in Canyon did not affected(被动语态were not affected) by globle warming. Hence, weather problem cannot be strong enough to prove this perspective.
The speaker also alleges that irrigation system was not essential at that time(阅读中是这个意思么?). It should not be one of the reasons for Anasazi left. Around that time, Anasazi might store food and water to survive?? when suffered from shortages of water. This point of view is totally different from the passage.
Finally, everything happened is not definite as it could not be serious for Anasazi to move out. They were replaced might be under a war from other tribe(这两句话读起来不通). It also might be some kinds of disease or they pursued for better farm land. All in all, the contents from the article cannot show its view effectively. And the speaker refutes it in his lecture in the end.