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雅思阅读模拟试题(2014版第十五期)
智 课 网 雅 思 备 考 资 料
雅思阅读模拟试题(2014版第十五期)
小编为各位雅思考生整理了雅思阅读模拟试题(2014版第十五期)
,阅读试题供考生参考练习。更多雅思考试模拟试题/真题,请关注智
课外语网雅思频道。
小编为各位雅思考生整理了雅思阅读模拟试题(2014版第十五期)
,第一页为阅读内容,第二页为试题,答案见第三页。阅读试题供考生
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new weapon to fight cancer
1. British scientists are preparing to launch trials of a radical
new way to fight cancer, which kills tumours by infecting them
with viruses like the common cold.
2. If successful, virus therapy could eventually form a third
pillar alongside radiotherapy and chemotherapy in the standard
arsenal against cancer, while avoiding some of the debilitating
side-effects.
3. Leonard Seymour, a professor of gene therapy at Oxford
University, who has been working on the virus therapy with
colleagues in London and the US, will lead the trials later this
year. Cancer Research UK said yesterday that it was excited by
the potential of Prof Seymours pioneering techniques.
4. One of the countrys leading geneticists, Prof Seymour
has been working with viruses that kill cancer cells directly,
while avoiding harm to healthy tissue. In principle, youve got
something which could be many times more effective than
regular chemotherapy, he said.
5. Cancer-killing viruses exploit the fact that cancer cells
suppress the bodys local immune system. If a cancer doesnt do
that, the immune system wipes it out. If you can get a virus into
a tumour, viruses find them a very good place to be because
theres no immune system to stop them replicating. You can
regard it as the cancers Achilles heel.
6. Only a small amount of the virus needs to get to the
cancer. They replicate, you get a million copies in each cell and
the cell bursts and they infect the tumour cells adjacent and
repeat the process, said Prof Seymour.
7. Preliminary research on mice shows that the viruses work
well on tumours resistant to standard cancer drugs. Its an
interesting possibility that they may have an advantage
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