【文章內(nèi)容簡(jiǎn)介】 esis(假設(shè))．To test his hypothesis，Choe and his team put different chemicals on Argentine ant pupae(蛹).When the scientists used the“I39。m dead”chemical，other ants quickly hauled tbe treated pupae the scientists used the“WaitI39。m not dead yet”chemicals，other ants left the treated pupae believes this behavior shows that the“not dead yet”chemicals override(優(yōu)先于)the“dead”chemical when picked up by adult ants． And that when an ant dies，the“not dead yet”chemicals fade away．Other nearby ants then detect the remaining“dead”chemical and remove the body from the nest．36．What is meant by“death chemical”mentioned in paragraph 3?A．A chemical that contains poison．B．A chemical that causes death．C．A chemical that announces death．D．A chemical that prevents death．37．Which of the following statements is NOT true of ants?A．Ants know very soon that another ant is dead．B．When an ant is dead，others move its body out of the nest．C．If an ant is unconscious，it is moved out of the nest．D．Living ants have the“I39。m dead”chemical on their bodies．38．According to Choe39。s hypothesis，．a(chǎn)n ant still smells like a living when it diesB．the“I am dead”chemical leaves the ant39。s body when it diesC．the“I am not dead yet”chemical is left when an ant diesD．the“I am not dead yet”chemical leaves the ant39。s body when it dies39．According to paragraph 7，what is the result of the test on Choe39。s hyothesis?A．It shows that his hypothesis is wrong．B．It proves that his hypothesis is convincing．C．It suggests that his hypothesis needs revising．D．Not enough evidence has been found to support his hypothesis．40．The passage“Night of the Living Ants”tells us ．how an ant is moved out of the nest at nighB．what an ant does at nightC．how an ant finds its way in darknessD．what happens when an ant dies第三篇The IcemanOn a September day in 1991，two Germans were climbing the mountain between Austria and Italy．High up on a mountain pass，they found the body of a man lying on the that height(10,499 feet or 3，200 meters)，the ice is usually permanent，but 1991 had been an especially warm year．The mountain ice had melted more than just usual and so the body had e to the surface．It was lying face downward．The skeleton(骨架)was in perfect condition，except for a wound in the head．There was still skin on the bones and the remains of some clothes．The hands were still holding the wooden handle of an ax and on the feet there were very simple leather and cloth boots．Nearby was a pair of gloves made of tree bark(樹(shù)皮)and a holder for arrows．Who was the man? How and when had he died? Everybody had a different answer to these questions．Some people thought that it was from this century，perhaps the body of a soldier who died in World War I．since several soldiers had already been found in the area． A Swiss woman who believed it might be her father, who had died in those mountains twenty years before and whose body had never been found．The scientists who rushed to look at the body thought it was probably much older，maybe even a thousand years old．With modern dating techniques，the scientists soon learned that the iceman was about 5，300 years old．Born in about 3300 B．C．，he lived during the Bronze Age in Europe．At first scientists thought he was probably a hunter who had died from an accident in the high recent evidence．however，tells a different story．A new kind of Xray shows an arrowhead still stuck in his shoulder．It left only a tiny hole in his skin，but it caused internal damage and bleeding．He almost certainlv died from this wound，and not from the wound on the back of his head．This means that he was probably in some kind of battle．It may have been part of a large war，or he may have been fighting bandits．He may even have been a bandit himself．By studying his clothes and tools，scientists have already learned a great deal from the Iceman about the times he lived in．we may never know the full story of how he died，but he has given us important clues to the history of those distant times．41．The body of the iceman was found in the mountains mainly because__________．A．two Germans were climbing mountainsB．he was just on a mountain passC．the melted ice made him visibleD．he was lying on the ice42．What can be inferred from paragraph 2?A．The iceman could have died from the wound in the head．B．The iceman was struck dead from behind．C．The iceman was killed while working．D．The iceman lived a poor life．43．All the following are assumptions once made about iceman EXCEPT____________．A．he was a soldier in Worid War IB．he came from ItalyC．he was a Swiss woman39。S longlost fatherD．He was born about a thousand years ago44．The scientists made the deduction that the iceman_________．A．was hit in the shoulder by an arrowheadB．has a tiny hole in his skin causing his deathC．was probably in some kind of a battleD．had got a wound on the back of his head45．The word“bandits”in paragraph 4 could be best replaced by_________．A．robbersB．shootersC．soldiersD．hunters第5部分：補(bǔ)全短文(第46～50題，每題2分，共10分)下面的短文有5處空白，短文后有6個(gè)句子，其中5個(gè)取自短文，請(qǐng)根據(jù)短文內(nèi)容將其分別放回原有位置，以恢復(fù)文章原貌。SemcoAt 21，Ricardo Semler became boss of his father39。S business in Brazil，Semco，which sold parts for ships．Semler Junior worked like a madman，from 7：30 am，until midnight every day．One afternoon，while touring a factory in New York，he collapsed．The doctor who treated him said，“There39。s nothing wrong with you．But if you continue like this．you39。ll find a new home in our hospital．”Semler got the message．He changed the way he worked．In fact，he changed the ways his employees worked too．He let his workers take more responsibility so that they would be the ones worrying when things went wrong．He allowed them to set their own salaries，and he cut all the jobs he thought were unnecessary，like receptionists and secretaries．__________(46)．“Everyone at Semco，even top managers，meets guests in reception，does the photocopying，sends faxes，types letters and dials the phone．”He pletely reo