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　　A museum worker found in Argentina a fossil(化石) of a kind of meat-eating dinosaur named

　　Guemesia.It is the first time that this kind of dinosaur has been discovered. It, possibly a young one, lived about 70 million years ago before an asteroid(小行星)hit the Earth,which killed about three-quarters of the Earth's species including the dinosaurs.

　　The fossil of the dinosaur was discovered in Argentina's northwestern Salta province. Researchers named the dinosaur Guemesia, which was taken from Argentine independence hero Martin Miguel de Guemes and the museum worker Javier Ochoa.

　　The dinosaur likely belongs to a group of meat-eating dinosaurs called abelisaurus. It walked on two legs and had only small and weak arms. The short arms may have forced Guemesia to depend on its powerful head to fight with itsenemies.“It's quite different from other meat- eating dinosaurs. So this allows us to understand that we're dealing with a totally new kind of dinosaur,” said Federico Agnolin, the lead author of a study on the dinosaur and a researcher at Argentine national science council CONICET.

　　“We know it had a very sharp sense of smell and was short-sighted," said another researcher Alexander Lazarus. “It would have walked upright on its large feet, with its strong head leading the way.Some scientists think that could mean the animal hunted other animals with its head.”

　　According to other research and studies on dinosaurs,the abelisaurus lived in what is now Africa, South America and India. And before the finding of Guemesia, many fossils were dug up in Argentina—nearly all of them in southern Patagonia, far from Salta province. Therefore, researchers said that this discovery adds to Argentina's reputation(声誉) as a treasure trove(宝库) of fossils of dinosaurs.

　　1.From Paragraph 1, we can know Guemesia_____.

　　A. was unknown to people before

　　B.was younger than other dinosaurs

　　C.was a very common kind of dinosaur

　　D. was the first meat-eating dinosaur to be discovered

　　2.Who discovered the fossil of Guemesia first?

　　A. Alexander Lazarus.

　　B. Federico Agnolin.

　　C. Javier Ochoa.

　　D. Martin Miguel de Guemes.

　　3.What made Guemesia different from other meat-eating dinosaurs?

　　A. The strong head.

　　B. The short legs.

　　C. The long arms.

　　D. The large feet.

　　4.What do the underlined words “thisdiscovery 3 in the last paragraph

　　refer to?

　　A. The discovery of Guemesia.

　　B. The discovery of meat-eating dinosaurs.

　　C. The discovery of dinosaurs in southern Patagonia.

　　D. The discovery of dinosaurs with good sight.

　　5.The writer writes this passage in a____tone(语气).

　　A.humorous B.surprising C. serious D. proud
 

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