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2009年英语真题(2 / 2)

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A tracks.

B series.

C characteristics.

D es.

24、Dawna Markova would most probably agreethat

A ideas are born of a rexingmind.

B innovativeness could betaught.

C decisiveness derives from fantasticideas.

D curiosity activates creativeminds.

25、Ryas suggest that the practice of standardizedtesting

A prevents new habits from beingformed.

B no longer emphasizesonness.

C maintains the i Ameri thinkingmode.

D plies with the Ameri beliefsystem.

Text 2

It is a wise father that knows his own child, but today a man boost his paternal (fatherly) wisdom – or at least firm that he’s the kid’s dad. All he o do is shell out 30 for a paternity testing kit (PTK) at his local drugstore – andanother120 to get the results.

More than 60, 000 people have purchased the PTKs sihey first became avaible without prescriptions st year, acc to Doug Fogg, chief operating officer of Identigene, which makes the over-the-ter kits. More than two dozen panies sell Ds directly to the public, ranging in price from a few hundred dolrs to more than 2, 500.

Among the most popur: paternity and kinship testing, which adopted childreo find their biological retives and families use to track down kids put up for adoption. Ding is also the test rage among passionate genealogists – and supports busihat offer to search for a family’s geographicroots.

Most tests require colleg cells by swabbing saliva in the mouth and sending it to the pany for testing. All tests require a potential didate with whom to pare DNA.

But some observers are skeptical. “There’s a kind of false precision being hawked by people g they are doing ary testing,” says Troy Duster, a New York Uy sociologist. He hat eadividual has many aors – numbering in the hundreds just a few turies back. Yet most ary testing only siders a single lineage, either the Y osome ied through men in a father’s line or mitodrial DNA, which is passed down only from mothers. This DNA reveal geiformation about only one or two aors, even though, for example, just three geions back people also have six reat-grandparents or, feions back, 14 reat-great-grandparents.

Critics alsue that ercial geic testing is only as good as the reference colles to which a sample is pared. Databases used by some panies don’t rely on data collected systematically but rather lump together information from different research projects. This means that a DNA database may have a lot of data from sions and not others, so a person’s test results may differ depending on the pany that processes the results. In addition, the puter programs a pany uses to estimate retionships may be patented and not subject to peer review or outsideevaluation.

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