职称英语考试

【单选题】The United StatesIn 1782 【51】 the United States won its independence, the bald eagle was chosen 【52】 the national bird of the new country.American leaders wanted the eagle to be a 【53】 of their country because it’’s a bird of strength and courage. They chose the bald eagle because it was found all over NorthAmerica and only in NorthAmeric
A、But a little over 200 years 【54】 ,the bald eagle had almost disappeared from the country, In 1972, there were only 3,000 bald eagles in the entire United States. The reason for the birds 【55】 population was pollution, especially pollution of rivers by pesticides. Pesticides are chemicals 【56】 to kill insects and other animals that attack and destroy crops.【57】 , rain often washes pesticides into rivers. Pesticides pollute the rivers and poison the fish.Eagles eat 【58】 and the poison 【59】 their eggs. The eggs have very thin shells and do not hatch. Eagles 【60】 only two or three eggs a year.Because many of the eggs did not 【61】 and produce more eagles, 【62】 eagles quickly 【63】 smaller.Today, theAmerican Government and theAmerican people are trying to protect the bald eagle. The number of bald eagles 【64】 It now appears 【65】 theAmerican national bird will survive and remain a symbol of strength and courage.
A、are increasing
B．are decreasing
C．is increasing
D．is decreasing

网考网参考答案：C
网考网解析：
The number of bald eagles作主语，为单数，所以可排除选项A)和B)；由上句可知，人们在试图保护秃鹰，因而其数量应是在增加，而不是在减少。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>