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。悉尼文波雅思PTE培训学校专门为澳洲，尤其是悉尼、墨尔本的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：
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。
Ever try to get a baby to smile?
It can seem close to impossible—and then suddenlythere it is:that elusive, seemingly joyous grin.
Well it turns out those smiles aren’t spontaneous—they’re strategic.
Researchers have found that when babies smile, it’sfor a reason.
They want whoever they’re interacting with—typically a parent—to smile back.
And they time it just so, a smile here and a smile there.
The researchers call it sophisticated timing.
The study is in the journal PLoS ONE.
The researchers enlisted real mothers and infants and quantified their interactions, which fellinto four categories.
One: babies wanted to maximize the amount of time smiling at their mothers.
Two: they wanted to maximize the time the mothers smiled at them.
Three: they wanted to experience simultaneous smiling,
and four: no smiling at all.
By studying when smiles happened and what the subsequent effect was, the investigators wereable to figure out that for mothers the goal 70 percent of the time was to be smilingsimultaneously while for babies 80 percent of the time they just wanted their mother smilingat them.
So, mothers want the interaction, while babies just want to be smiled at.
So your baby may not be able to feed itself, talk or even turn over yet.
But when it comes to smiles, babies seem to know exactly what they’re up to.
Elusive： [ɪ’l(j)uːsɪv] adj. 难懂的；易忘的
Spontaneous： [spɒn’teɪnɪəs] adj. 自发的；自然的
Sophisticated： [sə’fɪstɪkeɪt] n. 久经世故的人；精通者
Maximize： [‘mæksimaiz] t. 取…最大值；对…极为重视
Simultaneous： [,sɪm(ə)l’teɪnɪəs] adj. 同时的；联立的
