托福听力做题讲解 托福听力练习中如何保持注意力高度集中( 二 )


托福听力练习对照文
Word comes from California of a new weapon in the war on household pests.
一种同居家害虫的战斗的新武器的消息从California传来
Two scientists working for a firm in Anaheim, California, have developed a method to eliminate insects without using dangerous chemicals.
两个为California的Anaheim的一家公司工作的科学家,已经研发出一个方法去清除害虫又不使用危险化学品 。
The new poison? Hot air.
新型毒药?热空气 。
The basic idea is that insects cannot adjust to temperatures much above normal.
其基本思想是害虫不能适应超过常态很多的温度 。
In laboratory experiments, cockroaches and termites can't survive much more than a quarter of an hour at 125 degrees Fahrenheit, or about 50 degrees centigrade.
在实验室实验中,蟑螂和白蚁在华氏125度或大约摄氏50度时不能生存超过一刻钟 。
The new method involves covering a house with a huge tent and filling it with air heated to around 65 degrees centigrade.
这个新方法包括用一个巨大的帐篷盖住房子并且用加热到大约摄氏65度左右的空气注入它 。
Hot air is forced in with fans, and the tent keeps the heat inside the house.
热空气被风扇强压进去,然后帐篷将热量保持在房子中 。
Since termites try to escape by hiding in wooden beams, the heat treatment must be continued for a full six hours.
因为白蚁会试图躲在木梁中逃脱,这个热处理必须被维持一段六个小时(的时间)
But when it's all over, and the insects are dead, there are no toxic residues to endanger humans or pets, and no funny smells.
但是当一切都结束时,并且害虫都死掉了,没有残毒会危害人类或宠物,而且没有不舒服的气味 。
Scientists claim that there is no danger of fire, either, since very few household materials will burn at 65 degrees centigrade.
科学家声称根本没有火灾的危险,因为很少有家居材料会在摄氏65度燃烧 。
In fact, wood is prepared for construction use by drying it in ovens at 80 degree centigrade, which is substantially hotter than the air used in this procedure.
事实上,木头被准备用于建筑用途的,会在烘炉中以摄氏80度烘干,这实际上比用于这个程序的空气要热 。
托福听力练习对照文
Today's lecture will center on prehistoric people of the Nevada desert.
今天的课将集中Nevada沙漠的史前人类 。
Now, most of these prehistoric desert people moved across the countryside throughout the year.
现在(语气词),大多数那些史前的沙漠人类一年四季穿行在乡下
You might think that they were wandering aimlessly—far from it!
你能会认为他们在漫无目的的游荡——远非如此 。
They actually followed a series of carefully planned moves.

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