美国英语听力80篇3 Lesson54

[00:04.91]54) Anti-sense Technology
[00:10.55]Research scientists have reported success in using an experimental method
[00:17.97]called anti-sense technology to treat people with cancer.
[00:23.41]For years, researchers have tested anti-sense technology to treat cancer in humans.
[00:30.82]But thisis the first time some cancer patients have improved after getting the treatment.
[00:37.38]The findings were reported at the yearly meeting of the American Association for Cancer Research.
[00:45.79]The conference was held last month in San Francisco, California.
[00:52.19]Cancers result from mistakes in genetic² information.
[00:57.99]Some genes³ produce large amounts of proteins that help cancers grow.
[01:04.55]The experimental treatment targets one of these genes, known as the B-C-L-Two gene¹.
[01:13.20]In some cancer patients, the B-C-L-Two gene produces a protein that protects cancer tumors from traditional anti-cancer drugs.
[01:24.87]The antisense treatment prevents the gene from acting⁴.
[01:29.70]As a result,the drugs are able to attack cancer tumors.
[01:34.88]In the new study, researchers at the University of Vienna in Austria used an anti-sense drug.
[01:43.78]The drug was developed by Genta Incorporated,a company based in the American city of Lexington,Massachusetts.
[01:52.25]The researchers gave the anti-sense drug and the anticancer drug dacarbazine to fourteen people with advanced melanoma.
[02:03.87]Melanoma is a deadly kind of skin cancer.
[02:07.79]Earlier, dacarbazine and other anti-cancer treatments had failed to help most of the patients.
[02:15.39]However, the combination antisense treatment helped six of the fourteen patients.
[02:22.79]There was some improvement in five patients.
[02:26.94]In one patient,the cancer disappeared completely.
[02:31.48]The researchers said they believe the side effects of the treatment are acceptable.
[02:38.72]Some patients experienced changes in skin color,higher than normal body temperature and temporary liver problems

1 gene   

n.遗传因子，基因

参考例句：

• A single gene may have many effects.单一基因可能具有很多种效应。
• The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。

2 genetic   

adj.遗传的，遗传学的

参考例句：

• It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
• Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。

3 genes   

n.基因( gene的名词复数 )

参考例句：

• You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因，所以能够活得很长。 来自《简明英汉词典》
• Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪

4 acting   

n.演戏，行为，假装；adj.代理的，临时的，演出用的

参考例句：

• Ignore her,she's just acting.别理她，她只是假装的。
• During the seventies,her acting career was in eclipse.在七十年代，她的表演生涯黯然失色。