36套题问~~

qintxxUID: 2755308

E25的第9题不明白。。。

Researchers are finding that in many ways an individual
bacterium is more analogous to a component cell of a
multicellular organism than it is to a free-living,
autonomous organism. Anabaena, a freshwater bacteria is a
case in point. Among photosynthetic bacteria, Anabaena is
unusual: it is capable of both photosynthesis and nitrogen
fixation. Within a single cell, these two biochemical
processes are incompatible: oxygen produced during
photosynthesis, inactivates the nitrogenase required for
nitrogen fixation. In Anabaena communities, however,
these processes can coexist. When fixed nitrogen
compounds are abundant, Anabaena is strictly
photosynthetic and its cells are all alike. When nitrogen
levels are low, however, specialized cells called heterocysts
are produced which lack chlorophyll (necessary for
photosynthesis) but which can fix nitrogen by converting
nitrogen gas into a usable form. Submicroscopic channels
develop which connect the heterocyst cells with the
photosynthetic ones and which are used for transferring
cellular products between the two kinds of Anabaena cells.   
(156 words)   


9.The author uses the example of Anabaena to illustrate
the
(A) uniqueness of bacteria among unicellular organ-
isms
(B) inadequacy of an existing view of bacteria
(C) ability of unicellular organisms to engage in   
photosynthesis
(D) variability of a freshwater bacteria
(E) difficulty of investigating even the simplest   
unicellular organisms

为啥选b？？这个根本没提inadequacy view啊，在第一句。  我选a 。。。

征夷大将军UID: 3048328

Researchers are finding that in many ways an individual bacterium is more analogous to a component cell of a multicellular organism than it is to a free-living, autonomous organism.
这句是定位句，就是说科学家发现细菌其实更像a component cell of a multicellular organism而不是a free-living, autonomous organism，应该是指出了一个新发现的意思，所以是批判老观点的

而这个bacteria的确是有uniqueness，但是是和photosynthetic bacteria相比的，与单细胞生物无关。你可能受到了这个Within a single cell的影响选错了，事实上那个并不能突出 Anabaena的uniqueness，因为Anabaena不仅是多细胞组成的，而且还是多细胞里面同时有光合和固氮两种合成的。
一家之言，可能有错，欢迎指正。

qintxxUID: 2755308

“Researchers are finding that in many ways an individual bacterium is more analogous to a component cell of a multicellular organism than it is to a free-living, autonomous organism.
G这句是定位句，就是说科学家发现细菌其实更像a component cell of a multicellular organism而不是a free-living, autonomous organism，应该是指出了一个新发现的意思，所以是批判老观点的;  ”

嗯嗯 好像确实是。。不过这句话还真是微妙啊。。。考场上一紧张可能就错了

qintxxUID: 2755308

另，我现在都是小阅读15分钟做完能错4个，可一有大阅读总时间就会延长到20分钟，错误率也增加到6个。


这样能得多少分呢？？马上考试了。。有什么办法吧大阅读的时间减下来啊？

watertcafeUID: 2999484

各位………………………………………………

这套题陈虎平老师答案矫正过了………………是A啊………………………………

qintxxUID: 2755308

有木有陈老师校正的资料呢。。？马上考试求。。。

chrisy2011UID: 3114753

“新G, 阅读, 36套
答案校正：新GRE阅读36套 Exe 18.8: D; Exe 19.4: B; Exe 23.5: B;  Exe 25.9: A; Exe 26.1: E; Exe 29.3: A; Exe 30.10: D  （共7个答案） 8 }9 D, a. e. ]; D% M* c- b
新GRE逻辑10套 练习9. EDBBD ”
囧 刚才留错页儿了...

tomandshaunUID: 2529038

2# 征夷大将军

细菌都是单细胞的… 这个项圈藻是因为它分裂出来的细胞不脱离，才堆成项圈的。项圈藻其实还是单细胞细菌哒~