PTE考生目前最大的问题之一就是练习题缺乏。除了有限的基本官方书（PLUS，Testbuilder, OG）之外，就没有题了。很多英语基础不是很扎实的同学很难找到练习材料。墨尔本文波雅思PTE培训学校专门为墨尔本，悉尼PTE考生准备了适合PTE听力阅读练习的科学60秒。各位PTE同学可以练习PTE听力中的summarise spoken text和PTE口语中的retell lecture，PTE听力口语-科学60秒-Frosty Moss练习记笔记技巧和复述。废话少说，下面开始：
60秒科学：Dengue Fever Makes U.S. Inroads
听力内容：
60秒科学节目（SSS）是科学美国人网站的一套广播栏目，英文名称：Scientific American – 60 Second Science,节目内容以科学报道为主，节目仅一分钟的时间，主要对当今的科学技术新发展作以简明、通俗的介绍，对于科学的发展如何影响人们的生活环境、健康状况及科学技术，提供了大量简明易懂的阐释。
Dengue fever is common in the tropics. And in recent years the mosquito-borne virus has made inroads into the U.S., along the Texas–Mexico border and in south Florida.
The terrible pain of dengue has earned it the alternate name Breakbone Fever. And last month we learned that a Texas woman who died in 2012 after visiting New Mexico was a dengue victim. She was originally misdiagnosed with West Nile virus. That finding is in the CDC journal Morbidity and Mortality Weekly Report. [Tyler M. Sharp et al., Fatal Hemophagocytic Lymphohistiocytosis Associated with Locally Acquired Dengue Virus Infection—New Mexico and Texas, 2012]
This case is the third locally acquired dengue-related death in the U.S in the last decade (not including Puerto Rico, where dengue is common.) All three deaths occurred in the Texas area.
The CDC says it’s tough to gauge the true incidence of dengue in the U.S. because most recent cases appear to have been diagnosed at private labs and were not reported to public health authorities.
Three deaths may sound negligible in a country where some 600,000 people die of heart disease annually. But with more cases cropping up in Texas and Florida, dengue is definitely on the CDC’s watch list.
—Dina Fine Maron
