高三英语模拟试题三参考答案
(21-40每题2.5分）
21．D 22．B 23．C
24．C 2 5．C 2 6．D 2 7．A
28. C 29. D 30. C 31. A
32. B 33. B 34. D 35. A
36．E 37．G 38．A 39．F 40．C
（41-55.每题1分）
41．A 42．D 43．B 44．A 45．C 46．D 47．C 48．B 49．A 50．D 51．C 52．B 53．C 54．D 55．A0
Genetic testing companies have a long history of creative attempts to reach the mainstream.
An early example was the sequencing of rock star Ozzy Osbourne's genes in 2010,with
accompanying guess about how they might have influenced his drug habits.
Lately,such projects have taken on a new,highly commercialized tendency.In 2017,we got the
Marmite(马麦酱)gene project,”run by London-based genetic testing start-up DNAfit.It claims
to show that love or hate for Marmite was in our genes.The project turned into a full-blown
marketing campaign,and even sold Marmite-branded DNA testing tools.
DNAfit is now working with Mercedes-Benz to find out whether specific genetic traits are
associated with business wisdom.AncestryDNA,the world's largest consumer genetic testing
company,last year teamed up with Spotify to promote"music tailored to your DNA.Just a few
weeks ago,23andMe,the second largest,announced a partnership with Airbnb to provide
genetically tailored travel experiences,also inspired by ancestral DNA.
I have skin in this game.I run a genetic-testing start-up that connects people who want their
genome sequenced with researchers who want data to improve their understanding of genetic
disease.I believe that broadening access to DNA testing can be a powerful force for good,
providing safer,more effective medicines and giving people more power over their healthcare.But
these campaigns risk discrediting the industry,by giving a misleading impression of what genetics
can and can't say and its role in determining behaviours and personal preferences.
Take the Marmite study.It covered 261 people-tiny,by the standards of the field.It was
published not in a journal,but online on bioRxiv,a server where scientists typically put results
before peer-review.Shortly after,researchers looked at the genetic data of more than 500 times as
many people in the UK Biobank and found no such correlation.A large peer-reviewed study in
2013 found no significant link between genes and business common sense.
We need to inform the public about what this is all about:that is,the gathering of large amounts
of genetic data.We need better regulation to ensure that consumers are clear that this may happen
with this sensitive personal information.A checkbox on a 20-page web document full of legal
terms should not be enough.
Scientists too,need to start asking hard questions about whether the information they are using
has been sourced ethically(论理、道德).DNA testing has a great future,but we can't build this
future with data acquired by any means.
32.The author mentions DNAfit,AncestryDNA and 23andMe in order to
A.highlight the problems facing genetic testing
B.illustrate the commercial applications of DNA
C.compare what progress the companies have made
D.reveal the link between DNA and a person's character
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