为了大家能够更好的应对英语四级考试，小编特意为大家准备了一些听力新闻资料，希望对大家备考英语四级有帮助。

听力原文：

　　Scientists in America say a vaccine for the zika virus could be ready for human trials by August or September. The research is taking place at the National Institute of Allergy and Infectious Disease in Maryland. Tulip Mazumdar is there. "The scientists in this lab helped to develop an advanced vaccine for Ebola. Now they are trying to do the same for zika with the special focus on pregnant women because of the strongly suspected link between thevirus and babies being born with underdeveloped brains. Doctor Anthony Fauci,the institute's director says he's hoping human trials will start in America soon. 'We will have vaccine that's ready to go into humans to test towards the end of this summer or early fall'. These phrase one trials are only the start of a long process. The earliest scientists here expect to have vaccine is 2018."

    参考译文：

　　美国科学家表示，寨卡病毒疫苗将于8月或9月进行人体测试。这项研究在马里兰州美国国家过敏和传染病研究所进行。图利普·马祖达尔将带来详细报道。

　　该实验室的科学家协助开发了先进的埃博拉病毒疫苗。现在他们正在努力研发寨卡病毒疫苗，他们主要的关注点是孕妇，因为他们怀疑寨卡病毒与新生儿脑部发育不全存在着一定的联系。该研究所所长安东尼·福西博士表示，他希望人体测试能尽快在美国开展。“我们将在夏末或秋初准备好用于进行人体测试的疫苗。”第一阶段人体测试仅仅是漫长过程的开始。科学家预计该疫苗要获得成功最早也得在2018年。

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