英语专业八级考试过关训练题
Second thoughts are best. 以下是小编为大家搜索整理的英语专业八级考试过关训练题,希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!
Scattered through the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see. They drift about lazily with the currents, providing a basic food for many larger animals.
Plankton has been described as the equivalent of the grasses that grow on the dry land continents, and the comparison is an appropriate one. In potential food value however, plankton far outweighs that of the land grasses. One scientist has estimated that while grasses of the world produce about 49 billion tons of valuable carbohydrates each year. The sea’s plankton generates more than twice as much.
Despite its enormous food potential, little effort was made until recently to farm plankton as we farm grasses on land. Now marine scientists have at last begun to study this possibility, especially as the sea’s resources loom even more important as a means of feeding an expanding world population.
No one yet has seriously suggested that “planktonburgers” may soon become popular around the world. As a possible farmed supplementary food source, however, plankton is gaining considerable interest among marine scientists.
One type of plankton that seems to have great harvest possibilities is a tiny shrimplike creature called krill. Growing to two or three inches long, krill provide the major food for the giant blue whale, the largest animal ever to inhabit the Earth. Realizing that this whale may grow 100 feet and weigh 150 tons at maturity, it is not surprising that each one devours more than one ton of krill daily.
Krill swim about just below the surface in huge schools sometimes miles wide, mainly in the cold Antarctic. Because of their pink color, they often appear as a solid reddish mass when viewed from a ship or from the air. Krill are very high in food value. A pound of these crustaceans contains about 460 calories—about the same as shrimp or lobster, to which they are related.
If the krill can feed such huge creatures as whales, many scientists reason, they must certainly be contenders as new food source for humans.
1. Which of the following best portrays the organization of the passage?
A. The author presents the advantages and disadvantages of plankton as a food source.
B. The author quotes public opinion to support the argument for farming plankton.
C. The author classifies the different food sources according to amount of carbohydrate.
D. The author makes a general statement about plankton as a food source and then moves to a specific example.
2. According to the passage, why is plankton regarded to be more valuable than land grasses?
A. It is easier to cultivate.
B. It produces more carbohydrates.
C. It does not require soil.
D. It is more palatable.
3. Why does the author mention “planktonburgers”?
A. To describe the appearance of one type of plankton.
B. To illustrate how much plankton a whale consumes.
C. To suggest plankton as a possible food sources.
D. To compare the food values of beef and plankton.
4. What is mentioned as one conspicuous feature of krill?
A. They are the smallest marine animals.
B. They are pink in color.
C. They are similar in size to lobsters.
D. They have grass like bodies.
5. The author mentions all of the following as reasons why plankton could be considered a human food source except that it is ___.
A. high in food value.
B. in abundant supply in the oceans.
C. an appropriate food for other animals.
D. free of chemicals and pollutants.
答案:DBCBD
-
英语专八考试汉译英模拟练习
少年读书,如隙中窥月;中年读书,如庭中望月;老年读书,如台上玩月。皆以阅历之深浅,为所得之深浅耳。以下是小编为大家搜索整理的英语专八考试汉译英模拟练习,希望对正在关注的您有所帮助!更多精彩内容请及时关注我们应届毕业生考试网!part1<汉译英>中国的文学中文原...
-
英语专八听力考试备考策略
青年最主要的任务是学习。以下是小编为大家搜索整理的英语专八听力考试备考策略,希望对正在关注的您有所帮助!更多精彩内容请及时关注我们应届毕业生考试网!一、听抄练习听抄的主要目的在于提高听力的精度,提高听懂一句话的能力。具体步骤如下:1、听一遍全文,了解...
-
英语专八考试高频词汇总结
为学患无疑,疑则进也。以下是小编为大家搜索整理的英语专八考试高频词汇总结,希望对正在关注的您有所帮助!更多精彩内容请及时关注我们应届毕业生考试网!后接某人说的话,可用直接引语或间接引语onsth.对…有影响ernedwithsth.与…关系密切的ease不费...
-
2018年专八英语阅读理解训练题及答案
一分耕耘,一分收获;要收获的好,必须耕耘的好。以下是小编为大家搜索整理的2018年专八英语阅读理解训练题及答案,希望对正在关注的您有所帮助!更多精彩内容请及时关注我们应届毕业生考试网!Theincreaseinthemarginratefrom50%to70%wasnotanattempttostemanyrampant...