A seemingly inexhaustible jumper is the Oriental rat flea:it can jump 600 times an hour for three whole days without stopping. The fastest muscle movement ever recorded belongs to the mighty midge.This tiny, agile insect can beat its wings 133,000 times a minute,about 100 times faster than a human car biink an eye-which 'akes ail of one twenty fifth of a second. By land,air or sea,birds are masters of motions.The ostrich outruns any animal on two legs,carrying its 300-pound body at 30 miles an hour.The flight of the Indian bird sometimes exceeds 100 mph.And the gentoo penguin,by at least one account,can swim 22mph.At this speed,the penguin keeps pace with one of the fastest-swimming marine mammals,the dolphin. 16.It can be learned from the passage that A.the camel cannot cover 30 miles a day with a heavy load B.the kangaroo cannot jump high with its heavy body C.the elephant's trunk is both flexible and mighty D.the brawny bee has incredible strength when it is fastened to a tree 17.Which of the following figures is NOT correct? A.The weight of a normal kangaroo is about 200 pounds. B.The flea is the world's greatest high jumper. C.No one can jump 30 feet so far. D.The oriental rat flea can jump for three days nonstop. 18.The fastest muscle movement champion belongs to a kind of A.marine mammal B.huge-tailed animal C.mighty beast D.small insect 19.It can be inferred from the passage that A.an animal's size decides its physical power B.human beings can hardly jump as high as fleas C.ostrich is a kind of bird D.the penguin swims faster than the dolphin 20.It seems that the author of this passage intends to A.compare animals with human athletes B.introduce some gifted animal athletes C.show the underestimated strength of some animals D.demonstrate the law of "survival of the fittest" 1189• • A seemingly inexhaustible jumper is the Oriental rat flea: it can jump 600 times an hour for three whole days without stopping. The fastest muscle movement ever recorded belongs to the mighty midge. This tiny , agile insect can beat its wings 133 ,000 times a minute , about 100 times faster than a human car b~ink an eye - which +akes ail of one twenty fifth of a second. By land , air or sea , birds are masters of motions. The ostrich outruns any animal on two legs, carrying its 300-pound body at 30 miles an hour. The flight of the Indian bird sometimes exceeds 100 mph. And the gentoo penguin , by at least one account , can swim 22mph. At this speed , the penguin keeps pace with one of the fastest-swimming marine mammals, the dolphin. 16. It can be learned from the passage that A. the camel cannot cover 30 miles a day with a heavy load B. the kangaroo cannot jump high with its heavy body C. the dephalJ.t's trunk is both flexible and mighty D. the brawny bee has incredible strength when it is fastened to a tree 17. Which of the following figures is NOT correct? A. The weight of a normal kangaroo is about 200 pounds. B. The flea is the world' s greatest high jumper. C. No one can jump 30 feet so far. D. The oriental rat flea can jump for three days nonstop. 18. The fastest muscle movement champion belongs to a kind of A. marine mammal B. huge-tailed animal C. mighty beast D. small insect 19. It can be inferred from the passage that A. an animal's size decides its physical power B. human beings can hardly jump as high as fleas C. ostrich is a kind of bird D. the penguin swims faster than the dolphin 20. It seems that the author of this passage intends to A. compare animals with human athletes B. introduce some gifted animal athletes C. show the underestimated strength of some animals D. demonstrate the law of "survival of the fittest" 1189 •