精彩托福句子 2

 　　11.Acids are chemical compounds that,in water solution,have a sharp taste， a corrosive¹ action on metals,and the ability to turn certain blue vegetable dyes red.

　　12.Billie Holiday's reputation as a great jazz-blues singer rests on her ability to give emotional depth to her songs.

　　13.Essentially，a theory is an abstract，symbolic representation of what is conceived to be reality.

　　14.Long before children are able to speak or understand a language，they communicate through facial expressions and by making noises.

　　15.Thanks to modern irrigation，crops now grow abundantly in areas where once nothing but cacti² and sagebrush could live.

　　16.The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them.

　　17.Anthropology³ is a science in that anthropologists use a rigorous set of methods and techniques to document observations that can be checked by others.

　　18.Fungi⁴ are important in the process of decay，which returns ingredients to the soil，enhances soil fertility， and decomposes⁵ animal debris⁶.

　　19.When it is struck，a tuning⁷ fork produces an almost pure tone，retaining its pitch over a long period of time.

　　20.Although pecans are most plentiful⁸ in the southeastern part of the United States，they are found as far north as Ohio and Illinois.

1 corrosive   

adj.腐蚀性的；有害的；恶毒的

参考例句：

• Many highly corrosive substances are used in the nuclear industry.核工业使用许多腐蚀性很强的物质。
• Many highly corrosive substances are used in the nuclear industry.核工业使用许多腐蚀性很强的物质。

2 cacti   

n.（复）仙人掌

参考例句：

• There we could see nothing but cacti.那里除了仙人掌我们什么也看不到。
• Cacti can survive the lack of rainfall in the desert.仙人掌在降水稀少的沙漠中也能生存下去。

3 anthropology   

n.人类学

参考例句：

• I believe he has started reading up anthropology.我相信他已开始深入研究人类学。
• Social anthropology is centrally concerned with the diversity of culture.社会人类学主要关于文化多样性。

4 fungi   

n.真菌，霉菌

参考例句：

• Students practice to apply the study of genetics to multicellular plants and fungi.学生们练习把基因学应用到多细胞植物和真菌中。
• The lawn was covered with fungi.草地上到处都是蘑菇。

5 decomposes   

腐烂( decompose的第三人称单数 )； （使）分解； 分解（某物质、光线等）

参考例句：

• The debris slowly decomposes into compost. 这些垃圾慢慢地分解成了堆肥。
• Plastic is a substance that hardly decomposes in the nature. 塑料是一种在自然中极难降解的物质。

6 debris   

n.瓦砾堆，废墟，碎片

参考例句：

• After the bombing there was a lot of debris everywhere.轰炸之后到处瓦砾成堆。
• Bacteria sticks to food debris in the teeth,causing decay.细菌附着在牙缝中的食物残渣上，导致蛀牙。

7 tuning   

n.调谐，调整，调音v.调音( tune的现在分词 )；调整；（给收音机、电视等）调谐；使协调

参考例句：

• They are tuning up a plane on the flight line. 他们正在机场的飞机跑道上调试一架飞机。 来自《简明英汉词典》
• The orchestra are tuning up. 管弦乐队在定弦。 来自《现代汉英综合大词典》

8 plentiful   

adj.富裕的，丰富的

参考例句：

• Their family has a plentiful harvest this year.他们家今年又丰收了。
• Rainfall is plentiful in the area.这个地区雨量充足。