本人阅读og看了两遍并看了解释，现在作精读，基本按照小安阅读法的方法分析，和上次作og隔了近一个月吧，现在重新开始做时，发现错误率急速上升！有的几乎全错！我都快哭了！列举一道信息题，这样的题，信息点定位那么多，难道读的时候就把信息记住么？大家帮帮忙吧，我现在都不想做阅读了！
It was once assumed that all living things could be
divided into two fundamental and exhaustive categories.
Multicultural plants and animals, as well as many unicellu-
lar organisms, are eukaryotic—their large, complex cells
(5) have a well-formed nucleus and many organelles. On the
other hand, the true bacteria are prokaryotic cell, which
are simple and lack a nucleus. The distinction between
eukaryotes and bacteria, initially defined in terms of
sub cellular structures visible with a microscope, was ulti-
(10) mately carried to the molecular level. Here prokaryotic and
eukaryotic cells have many features in common. For
instance, they translate genetic information into proteins
according to the same type of genetic coding. But even
where the molecular processes are the same, the details in
(15) the two forms are different and characteristic of the respec-
tive forms. For example, the amino acid sequences of vari-
ous enzymes tend to be typically prokaryotic or eukaryotic.
The differences between the groups and the similarities
within each group made it seem certain to most biologists
(20) that the tree of life had only two stems. Moreover, argu-
ments pointing out the extent of both structural and func-
tional differences between eukaryotes and true bacteria
convinced many biologists that the precursors of the
eukaryotes must have diverged from the common
(25) ancestor before the bacteria arose.
Although much of this picture has been sustained by
more recent research, it seems fundamentally wrong in one
respect. Among the bacteria, there are organisms that are
significantly different both from the cells of eukaryotes and
(30) from the true bacteria, and it now appears that there are
three stems in the tree of life. New techniques for deter-
mining the molecular sequence of the RNA of organisms
have produced evolutionary information about the degree
to which organisms are related, the time since they diverged
(35) from a common ancestor, and the reconstruction of ances-
tral versions of genes. These techniques have strongly
suggested that although the true bacteria indeed form a
large coherent group, certain other bacteria, the archaebac-
eria, which are also prokaryotes and which resemble true
(40) bacteria, represent a distinct evolutionary branch that
far antedates the common ancestor of all true bacteria.
文种蓝色的是题目考察的内容。
181. All of the following statements are supported by the passage
EXCEPT:（E）支持题
遇到这种题该咋办啊？定位那么难！
(A) True bacteria form a distinct evolutionary group.L37-38
(B) Archaebacteria are prokaryotes that resemble true
bacteria.L38-40
(C) True bacteria and eukaryotes employ similar types of genetic
coding.L10-13
(D) True bacteria and eukaryotes are distinguishable at the
sub cellular level.L7-10
(E) Amino acid sequences of enzymes are uniform for eukaryotic
and prokaryotic organisms. L25-27
这篇passage29生词超多，都不知道怎么把这些生词定位，考试若遇到这种文章都不想读了！
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发表于 2006-6-10 14:22:00
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