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- 716240
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- 2012-2-1
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- 1970-1-1
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谢谢PPX~~
1-2'17
The left-coiling shell snails that once were rare and preferences to the shell collector gradually become the preponderance and the majority of the species, especially the sea snail. However, researchers haven't figured the phenomenon yet.
2-1'57
The plants can not only absorb much more nutrient from fungal, but also garner the information of pests and build their own defense to attack of pests. However the researchers fails to verify and confirm this argument totally, another possible alternate explanation has been ruled out.
3-2'16
In the passage, the author points out the cause, a single-cell organism, of the potato-catastrophe in the Ireland and the influence of this event.
4-2'51
Then the researchers found that the original cells preserved till now from that event were much similar to the strain in Mexico, revealing that the original killer to Irish potatoes might come from American land initially.
5-3'10
The gist is that latest research has justified the connection between the cold temperature and the susceptibility for people to catch cold.
At first, the author mentions the common sense which obviously and conspicuously reveals this relationship in everyday life but not in theory.
Then the author points out some failed experiments meant to expose and reveal this connection in history and proceeds to the recent triumph in vindicating this relationship by scientific study. Moreover, the author describes the experiment process in detail.
Finally, some other voices are mentioned that the cold temperature might not be the only factor to the cold.
6-6'58
At the beginning, author presents a recent finding, with the help of cutting-edge technique. that suggests DV's great work, which was commonly thought to be destroyed and decimated by a repainting on the wall of a hall might still exist. Then, some reasons are given. For example, same material found in DV's other painting are also found in the wall, and another type of building material which is generally considered only to be used in early times was also found. More significantly an essentially, air gaps were discovered by a new detection probe only in some parts of the wall, revealing the possible survival of the DV's original painting protected by the indirectly-contacting material on which the repainting-process was put.
Then, according the author, the discovery of DV's original painting was started nearly 30 years ago and only gains the encouraging and uplifting fruit recently due to the use of new technique.
Finally, the author tells us some background information and the old story in the DV's original painting and its replacement in later years.
要是越障里面最后两段背景知识放在最开始就好了,读到最后才恍然大悟前面的东西...
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