托福听力荟萃 67

Word comes from California of a new weapon in the war on_____,______. Two scientists working for a firm in Anaheim, California, have developed a method to eliminate insects without using dangerous chemicals. The new poison? Hot air. The basic idea is that insects cannot adjust to temperatures much above normal. In laboratory experiments,______and______can't survive much more than a quarter of an hour at 125 degrees Fahrenheit¹, or about 50 degrees______. The new method involves covering a house with a huge tent and filling it with air heated to around 65 degrees centigrade. Hot air is forced in with fans, and the tent keeps the heat inside the house. Since termites³ try to escape by hiding in wooden______, the heat treatment must be continued for a full six hours. But when it's all over, and the insects are dead, there are no___________to endanger humans or pets, and no funny smells. Scientists claim that there is no danger of fire, either, since very few household materials will burn at 65 degrees centigrade. In fact, wood is prepared for construction use by drying it in______at 80 degree centigrade, which is______hotter than the air used in this procedure.

 

 

【填空答案】

household: adj. connected with looking after a house and the people in it 家庭的，家用的，家务的

pest: n. ［C］a small animal or insect that destroys crops or food supplies（毁坏庄稼或食物的）有害小动物（昆虫）；害虫

cockroach⁴: n. ［C］a large black insect often found in old or dirty houses 蟑螂

termite²: n. ［C］an insect that eats and destroys wood from trees and buildings 白蚁

centigrade: n. 摄氏度

beam: n. ［C］a long heavy piece of wood or metal used in building houses, bridges etc 梁，横梁

toxic⁵: adj. containing poison, or caused by poisonous substances 有毒的；由有毒物质引起的

residue⁶: n. ［C］technicala substance that is left after a chemical process【术语】（化学）残余物，渣滓

oven: n. ［C］a thing inside which food is cooked, shaped like a box with a door on the front 烘箱；烤箱，烤炉

substantially: adv. when considering the most important parts 主要地；大体上，基本上

【听力原文】

Word comes from California of a new weapon in the war on household Word comes from California of a new weapon in the war on household pests. Two scientists working for a firm in Anaheim, California, have developed a method to eliminate insects without using dangerous chemicals. The new poison? Hot air. The basic idea is that insects cannot adjust to temperatures much above normal. In laboratory experiments, cockroaches⁷ and termites can't survive much more than a quarter of an hour at 125 degrees Fahrenheit, or about 50 degrees centigrade. The new method involves covering a house with a huge tent and filling it with air heated to around 65 degrees centigrade. Hot air is forced in with fans, and the tent keeps the heat inside the house. Since termites try to escape by hiding in wooden beams, the heat treatment must be continued for a full six hours. But when it's all over, and the insects are dead, there are no toxic residues⁸ to endanger humans or pets, and no funny smells. Scientists claim that there is no danger of fire, either, since very few household materials will burn at 65 degrees centigrade. 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.

【参考译文】

这是来自加利福尼亚的一个消灭家里害虫的新武器。两个在加利福尼亚阿纳翰一家公司工作的科学家，已经开发了一种不用危险化学制剂就能消灭害虫方法。一种新型毒药？是热空气。最基本的想法是昆虫不能适应比正常气温高太多的温度。在实验室的试验中，蟑螂和白蚁在125华氏度，或者说50摄氏度下生存不超过25分钟。新的方法包含将房子盖在一个大帐篷下，然后用加热到65摄氏度的空气充满。热气被风扇吹进，帐篷持续加热里面的房子。当白蚁试着通过藏在木头横梁逃跑的时候，加热待遇必须持续整六个小时。但是当一切结束的时候，害虫被消灭，这里也没有有毒的化学残留物危害人类或宠物，而且没有令人不适的味道。科学家声称火也是没有危险的，除了在65摄氏度下一些家具的材料会燃烧。事实上，木头是用基本上高于这个灭虫程序空气温度的80摄氏度的烤箱烘干来用于建设的。

1 Fahrenheit   

n./adj.华氏温度；华氏温度计(的)

参考例句：

• He was asked for the boiling point of water in Fahrenheit.他被问到水的沸点是华氏多少度。
• The thermometer reads 80 degrees Fahrenheit.寒暑表指出华氏80度。

2 termite   

n.白蚁

参考例句：

• The termite control was also probed into further in this text.本文还进一步探讨了白蚁的防治方法。
• Termite often destroys wood.白蚁经常破坏树木。

3 termites   

n.白蚁( termite的名词复数 )

参考例句：

• Termites are principally tropical in distribution. 白蚁主要分布在热带地区。 来自辞典例句
• This spray will exterminate the termites. 这种喷剂能消灭白蚁。 来自辞典例句

4 cockroach   

n.蟑螂

参考例句：

• A cockroach can live several weeks with its head off.蟑螂在头被切掉后仍能活好几个星期。
• She screamed when she found a cockroach in her bed.她在床上找到一只蟑螂时大声尖叫。

5 toxic   

adj.有毒的，因中毒引起的

参考例句：

• The factory had accidentally released a quantity of toxic waste into the sea.这家工厂意外泄漏大量有毒废物到海中。
• There is a risk that toxic chemicals might be blasted into the atmosphere.爆炸后有毒化学物质可能会进入大气层。

6 residue   

n.残余，剩余，残渣

参考例句：

• Mary scraped the residue of food from the plates before putting them under water.玛丽在把盘子放入水之前先刮去上面的食物残渣。
• Pesticide persistence beyond the critical period for control leads to residue problems.农药一旦超过控制的临界期，就会导致残留问题。

7 cockroaches   

n.蟑螂( cockroach的名词复数 )

参考例句：

• At night, the cockroaches filled the house with their rustlings. 夜里，屋里尽是蟑螂窸窸瑟瑟的声音。 来自辞典例句
• It loves cockroaches, and can keep a house clear of these hated insects. 它们好食蟑螂，可以使住宅免除这些讨厌昆虫的骚扰。 来自百科语句

8 residues   

n.剩余，余渣( residue的名词复数 )；剩余财产；剩数

参考例句：

• pesticide residues in fruit and vegetables 残留在水果和蔬菜中的杀虫剂
• All organic and metallic residues on the wafers must be removed. 片子上所有的有机和金属残留物均必须清除。 来自辞典例句