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0802作业:
综合: The passage claims that the several findings in the T.rex's leg bone seem to be the remains of blood vessels, red blood cells and collagen matrix. However, the speaker in the lecture doesn't agree with the conclusion made by the passage.
First, the speaker points out that the finding of branching channels and soft substance are unnecessarily related to remains of blood vessels. It can be something else. It can be simply traces of moisture residues left by bacteria.
Second, the passage claims that the presence of spheres could be the remains of red blood cells. However, the speaker cites that those spheres are also found in fossils of other animals that does not have red blood cells. Thus the presence of spheres is not necessarily to demonstrate the existence of red blood cells. The speaker thus assumes that the spheres in the inner bone can be some other residue material.
Finally, the speaker casts doubt on the findings of collagen in the last paragraph of the passage. Collagen cannot last more than 1,000 years. It is very doubtful that how scientists can test the existence of collagen in a leg bone of more than 70 billion years ago. The speaker, therefore, presume the collagen may come from the skin of researcher, which contains collagen.
独立: 题目:Do you agree or disagree with the following statement?It is often nota goodthing to move to a new city or a new country because of the lose of old friends. 习作: We face changes and have to make choices in our daily life. If there is a chance for you to live in a new city or a new country, how will you evaluate this chance? Some people believe that it is often not good because of the worry of losing old friends. My view is that those people are overanxious and fail to realize the benefits from new place.
Indeed, it is a pity to lose old friends because you leave the city where your friends stay. In the old days, distance means losing connections.   eople are not able to hang out with their friends who are hundreds kilometers away.   eople even lose the chance to chat with their friends. The link of the friendship is cut by distance. Moreover, friendship is one of the most essential and valuable relationship in our lives. We cannot imagine our life without friends. Thus moving is really not a good idea to move at this aspect.
However, moving to a new city can bring much more benefits. A new city or new country may means better education, more job chances, better medical conditions and even new friends. I would like to use myself as a good example. To complete my university education, I moved to Shanghai from my hometown, which is more than one thousand kilometres far away from Shanghai. If I stayed in my home town, I would never get chance to go to university, because there is just simply no college or university in such a tiny town. I would not be able to get a chance to work with people all over the world such as Europe, America, Africa and Oceania. I cannot imagine what my life will look like if I never leave my hometown. The medical condition is also much better than that of my home town, because Shanghai has better quality medical devices, much more hospitals, more professional doctors and so on.
Additionally, in nowadays, thankful for the development of technology, moving to a new place does not necessarily means we will lose our old friends. We can use phone to call each other no matter where we are, as long as there is signal. We also have internet tools, such as MSN, Skype, Facebook, not only to talk with our friends, but also to share our daily life vividly. I am a very good example. I connected with all my old friends with QQ, a Chinese IM tool. We can chat and video to each other freely by internet. Moreover, by checking the status I posted, my friends who are 2000km away can even know what I had for breakfast. The distance does not weaken our friendship at all.
Losing friends is indeed very sad for everyone. However, we cannot simply omit the benefits - education, career, medicals, etc - brought by moving to new cities or countries. Moreover, today's technology makes us enjoy the benefits without losing old friends. Therefore, we cannot make the conclusion that it is not a good thing to move to a new city or a new country. |
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