在线英语听力室

美国科学60秒 SSS 2012-12-21

时间：2013-06-25 08:48:23

搜索关注在线英语听力室公众号：tingroom，领取免费英语资料大礼包。

（单词翻译）

 Everyfall, you need a new flu shot. Let's consider these vaccines2 training ourimmune system, the recognize specific strains of flu. Identifying by two protein on the virus coat, hem3 agglutinin(血细胞凝集素) and neuraminidases(神经氨酸酶).

 
That's for the HN come from, H1N1. Problem is, thoseproteins are moving target, they mutatequickly. Once they do, your immune system can't recognize them. And you gotsomething like 2009 swineflu. As the strain flu shot never *primed us to fight.
 
To make more universal vaccine1, we worked year after year. Researchers focused onsmaller, more stable protein, called M2. In human's strains, these proteinshardly change since the 1930s. Research engineer in the M2 vaccine and gave to mice, then they exposed the mice to lethaldoses to human, swine and bird flues.
 
All the vaccine micesurvived, they are unlucky counterparts, didn't. The research appears inJournal Molecule4 Therapy.
 
A good seasonal5 flu vaccine were still beat the M2 vaccine. But the M2 gives us insurance against a surprisedstrain. Well, it might worth a shot.   

分享到：


点击收听单词发音收听单词发音  

1 vaccine Ki1wv     
n.牛痘苗，疫苗；adj.牛痘的，疫苗的
参考例句：
  • The polio vaccine has saved millions of lives.脊髓灰质炎疫苗挽救了数以百万计的生命。
  • She takes a vaccine against influenza every fall.她每年秋季接种流感疫苗。
2 vaccines c9bb57973a82c1e95c7cd0f4988a1ded     
疫苗，痘苗( vaccine的名词复数 )
参考例句：
  • His team are at the forefront of scientific research into vaccines. 他的小组处于疫苗科研的最前沿。
  • The vaccines were kept cool in refrigerators. 疫苗放在冰箱中冷藏。
3 hem 7dIxa     
n.贴边，镶边；vt.缝贴边；(in)包围，限制
参考例句：
  • The hem on her skirt needs sewing.她裙子上的褶边需要缝一缝。
  • The hem of your dress needs to be let down an inch.你衣服的折边有必要放长1英寸。
4 molecule Y6Tzn     
n.分子，克分子
参考例句：
  • A molecule of water is made up of two atoms of hygrogen and one atom of oxygen.一个水分子是由P妈̬f婘̬ 妈̬成的。
  • This gives us the structural formula of the molecule.这种方式给出了分子的结构式。
5 seasonal LZ1xE     
adj.季节的，季节性的
参考例句：
  • The town relies on the seasonal tourist industry for jobs.这个城镇依靠季节性旅游业提供就业机会。
  • The hors d'oeuvre is seasonal vegetables.餐前小吃是应时蔬菜。

本文本内容来源于互联网抓取和网友提交，仅供参考，部分栏目没有内容，如果您有更合适的内容，欢迎 点击提交 分享给大家。