题目内容
（请给出正确答案）
Scientists engaged in animal studies have collected
A.enough data on how animals speak human languages
B.none of the data on animals？ ability to communicate
C.1ess data on how animals communicate between species
D.some data on animals？ tendency to talk to humans
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更多“Scientists engaged in animal s…”相关的问题
She’s part of a team of scientists who are （） upon cancer research.
A.worked
B.arranged
C.engaged
D.involved
Receptionist：Grand Hotel，front desk．
Tourist：I‘d like to reserve a room with a single bed．
Receptionist：FB sorry，__________．
Tourist：Oh，then can you recommend another hotel nearby？
A.but we’re fully booked
B.but we’re engaged
C.but we’re wanted
D.but we fully occupied
Human' s Hands
Archaeological records--paintings, drawings, and drawings of humans engaged in activities involving the use of hands--indicate that humans have been predominantly right - handed for more than 5,000 years. In ancient Egyptian artwork, for example, the fight-hand is depicted us the dominant one in about 90 per- cent of the examples. Fracture or wear patterns on tools also indicate that a majority of ancient people were fight - handed.
Cro - Magnon cave paintings some 27,000 years old commonly show outlines of human hands made by placing one hand against the cave wall and applying paint with the other. Children today make similar. out- lines of their hands with crayons on paper. With few exceptions, left hands of Cro-Manganese are displayed on cave wails, indicating that the paintings were usually done by right-handers.
Anthropological evidence pushes the record of' handedness nearly human ancestors back to at least 1.4 million years ago. One important line of evidence comes from flaking patterns of stone cores used in toolmaking: implements flaked with a clockwise motion (indicating a right -handed toolmaker) can be distinguished from those flaked with a counter- clockwise rotation (indicating a left- handed toolmaker).
Even scratches found on fossil human teeth offer clues. Ancient humans are thought to have cut meat into strips by holding it between their teeth and slicing it with stone knives, as do the present - day Inuit. Occasionally the knives slip and leave scratches on the users' teeth. Scratches made with a left - to - right stroke direction (by right- handers) are more common than scratches in the opposite direction (made by lefthanders).
Still other evidence comes from cranial morphology: scientists think that physical differences between the right and left sides of the interior of the skull indicate subtle physical differences between the two sides of the brain. The variation between the hemispheres corresponds to which Side of the body is used to perform. specific activities. Such studies, as well as studies of tool use, indicate that right - or left - sided dominance is not exclusive to modern Homo sapiens. Populations of Neanderthals, such as Homo erects and Homo habilis, seem to have been predominantly right -handed, as we are.
What is the main idea of the passage？
A．Human ancestors became predominantly right- handed when they began to use tools.
B．It is difficult to interpret the significance of anthropological evidence concerning tool use.
C．Human and their ancestors have been predominantly right - handed for over a million years.
D．Human ancestors were more skilled at using both hands than modern humans.
Globe jobs were for life-guaranteed until retirement. For 15 years I had prospered there—moving from an ordinary reporter to foreign correspondent and finally to senior. I would have a life time of security if I stuck to it.Instead, I had made a decision to leave. I entered my boss’s office. Would he rage？I wondered. He had a famous temper. “Matt, we have to have a talk,” I began awkwardly.“I came to the Globe when I was twenty-four. Now I’m forty. There’s a lot I want to doinlife. I’m resigning.” “To another paper？” he asked. I reached into my coat pocket, but didn’t say anything. I handed him a letter that explained everything.It said that I was leaving to start a new media company. We were at a rare turning point in history. I wanted to be directly engaged in the change.“I’m glad for you,”he said, quite out of my expectation.“I just came from aboard of directors meeting and it was seventy-five percent discouraging news. Some of that we can deal with. But much of it we can’t,” he went on.“I wish you all the luck in the world,”he concluded.“And if it doesn’t work out, remember, your star is always high here."
Then I went out of his office, walking through the news room for more good-byes. Everybody was saying congratulations. Everybody--even though I’d be risking all on an unfamiliar venture: all the financial security I had carefully built up.
Later, I had a final talk with Bill Taylor, chairman and publisher of the Boston Globe. He had turned the Globe into abillion-dollar property. “I’m resigning, Bill,” I said. He listened while I gave him the story. He wasn’t looking angry or dismayed either. After a pause, he said,“Golly, I wish I were in your shoes.”
From the passage we know that the Globe is a famous 。
A.newspaper
B.magazine
C.temple
D.church
If the writer stayed with the Globe 。
A.he would be able to realize his lifetime dreams.
B.he would let his long favourite dreams fade away
C.he would never have to worry about his future life
D.he would never be allowed to develop his ambitions
The writer wanted to resign because .
A.he had serous trouble with his boss.
B.he wanted to be engaged in the new media industry.
C.he got underpaid at his job for the Globe.
D.he had found a better paid job in a publishing house.
When the writer decided to resign the Globe was faced with .
A.a trouble with its staff members
B.a shortage of qualified reporters
C.an unfavorable business situation
D.a promising business situation
By saying“I wish I were in your shoes”(in the last paragraph) Bill Taylor meant that .
A.The writer was to fail.
B.The writer was stupid
C.He would reject the writer’s request
D.He would do the same if possibl
Night of the Living Ants
When an ant dies，other ants move the dead insect out of the nest．This behavior. is interesting to scientists，who wonder how ants know for sure-and so soon-that another ant is dead．
Dong-Hwan Choe，a scientist at the University of California，found that Argentine ants have a chemical on the outside of their bodies that signals to other ants，“I’m dead-take me away．”
But there's a twist to Choe's discovery．Choe says that the living ants-not just the dead ones -have this death chemical．In other words，while an ant crawls around，perhaps in a picnic or home，it's telling other ants that it's dead．
What keeps ants from hauling away the living dead？Choe found that Argentine ants have two additional chemicals on their bodies，and these tell nearby ants something like，“Wait-I'm not dead yet．” So Choe's research turned up two sets of chemical signals in ants：one says，“I'm dead，”the other set says，“I'm not dead yet．”
Other scientists have tried to figure out how ants know when another ant is dead．If an ant is knocked unconscious，other ants leave it alone until it wakes up．That means ants know that unmoving ants can still be alive．
Choe suspects that when an Argentine ant dies．the chemical that says“Wait-I'm not dead yet” quickly goes away．Once that chemical is gone，only the one that says“I'm dead”is left．“It's because the dead ant no longer smells like a living ant that it gets carried to the graveyard(墓地)，not because its body releases new，unique chemicals after death，”said Choe．When other ants detect the“dead”chemical without the“not dead yet”chemical，they haul away the body．This was Choe's hypothesis(假设)．
To test his hypothesis，Choe and his team put different chemicals on Argentine ant pupae(蛹)． When the scientists used the“I'm dead”chemical，other ants quickly hauled the treated pupae away． When the scientists used the“Wait-I'm not dead yet”chemical，other ants left the treated pupae alone． Choe believes this behavior. shows that the“not dead yet”chemical overrides(优胜于)the“dead”chemical when picked up by adult ants．And that when an ant dies，the“not dead yet”chemical fades away． Other nearby ants then detect the remaining“dead”chemical and remove the body from the nest．
The phrase“this death chemical”in paragraph 3 refers to
A．the chemical that contains poison．
B．the chemical that announces death．
C．the chemical that prevents death．
D．the chemical that causes death．
Night of the Living Ants
When an ant dies，other ants move the dead insect out of the nest．This behavior. is interesting to scientists，who wonder how ants know for sure-and so soon-that another ant is dead．
Dong-Hwan Choe，a scientist at the University of California，found that Argentine ants have a chemical on the outside of their bodies that signals to other ants，“I’m dead-take me away．”
But there's a twist to Choe's discovery．Choe says that the living ants-not just the dead ones -have this death chemical．In other words，while an ant crawls around，perhaps in a picnic or home，it's telling other ants that it's dead．
What keeps ants from hauling away the living dead？Choe found that Argentine ants have two additional chemicals on their bodies，and these tell nearby ants something like，“Wait-I'm not dead yet．” So Choe's research turned up two sets of chemical signals in ants：one says，“I'm dead，”the other set says，“I'm not dead yet．”
Other scientists have tried to figure out how ants know when another ant is dead．If an ant is knocked unconscious，other ants leave it alone until it wakes up．That means ants know that unmoving ants can still be alive．
Choe suspects that when an Argentine ant dies．the chemical that says“Wait-I'm not dead yet” quickly goes away．Once that chemical is gone，only the one that says“I'm dead”is left．“It's because the dead ant no longer smells like a living ant that it gets carried to the graveyard(墓地)，not because its body releases new，unique chemicals after death，”said Choe．When other ants detect the“dead”chemical without the“not dead yet”chemical，they haul away the body．This was Choe's hypothesis(假设)．
To test his hypothesis，Choe and his team put different chemicals on Argentine ant pupae(蛹)． When the scientists used the“I'm dead”chemical，other ants quickly hauled the treated pupae away． When the scientists used the“Wait-I'm not dead yet”chemical，other ants left the treated pupae alone． Choe believes this behavior. shows that the“not dead yet”chemical overrides(优胜于)the“dead”chemical when picked up by adult ants．And that when an ant dies，the“not dead yet”chemical fades away． Other nearby ants then detect the remaining“dead”chemical and remove the body from the nest．
The phrase“this death chemical”in paragraph 3 refers to
A．the chemical that contains poison．
B．the chemical that announces death．
C．the chemical that prevents death．
D．the chemical that causes death．
Recently, some scientists decided to find out what the funniest joke in the world was. This wasclearly a (an) 21 task,as no two people ever really agree about what is funny and what is not--22 when they are from different 23 Telling jokes is something people often 24 around the worlD@25 , jokes are sometimes not funny to or are often not 26 by people who are not part of that culture(文化). Anyhow, 27 a year-long serious study, the scientists 28 the funniest joke in the world :Two hunters (猎人) are out in the woods. One of them 29 to the ground He doesn&39; t seemto be 30 , his eyes closeD@The other hunter takes out his phone and calls emergency (紧急)services."My friend is dead!"he 31 to the man on the other side."What can I do？"The man,in a(an) 32 voice,says," Dont&39; t worry. I can 33 . First, make sure he&39;s 34 "There is a silence,then a shot is 35 Bang! The hunter&39;s voice comes back on the line. He says,"OK,now what？"
请选择最佳选项()。
A.wonderfu
B.important
C.interesting
D.Difficult
请选择最佳选项()。A.especially
B.finally
C.gradually
D.Generally
请选择最佳选项()。A.companies
B.countries
C.families
D.Schools
请选择最佳选项()。A.ask
B.do
C.give
D.Play
请选择最佳选项()。A.Thus
B.Therefore
C.However
D.Anyhow
请选择最佳选项()。
A.guessed
B.held
C.proved
D.Understood
请选择最佳选项()。
A.A.for
B.B.during
C.C.before
D.D.After
请选择最佳选项()。A.wrote
B.touched
C.decided
D.Spread
请选择最佳选项()。A.jumps
B.falls
C.points
D.Gets
请选择最佳选项()。A.thinking
B.speaking
C.rising
D.Breathing
请选择最佳选项()。A.cries
B.nods
C.turns
D.Waves
请选择最佳选项()。A.anxious
B.angry
C.calm
D.Curious
请选择最佳选项()。A.help
B.feel
C.go
D.Show
请选择最佳选项()。A.buried
B.dead
C.hit
D.Sick
请选择最佳选项()。A.heard
B.made
C.taken
D.Told
"Ah, yes," replied the manager, "but America has treasures that Japan can never hope to possess."
"You mean our mineral wealth and bountiful farms？
"Ah, no. I was referring to Caltech and MIT."
America's scientific institutions--its technological universities and government laboratories--are the en vy of the world , producing ideas, devices and medicines that have made the U.S. prosperous, improved the lives of people around the globe and profoundly affected their perception of the world and the universe. This tremendous creativity is reflected in tile technical reports that are published in scientific journals throughout the world. Fully 35 % of them come from scientists doing their research at American institutions.
Yet American dominance can no longer be taken for granted. Many recent U. S. achievements and a wards stem in large measure from generous research grants of the past, and any weakening of government and industry commitment to support of basic research could in the next few decades cost the nation its scientific leadership. Some slipping is already divalent. In high-energy physics, where Americans once reigned supreme, Western Europe now spends roughly twice as much money as the U. S. Result. the major high-energy physics discoveries of tile past few years have been made not by Americans but by Europeans.
Even so, money alone cannot guarantee scientific supremacy. Freedom of inquiry, an intellectually stimulating environment and continuous recruitment of the best minds must accompany it. That combination has been achieved in many U.S. institutions--educational, governmental and industrial--but perhaps no where more successfully than at the National Institutes of Health, Bell Laboratories and Caltech.
America's technological universities and government laboratories are generally ______.
A．loved by scientists in other parts of the world
B．disliked by scientists in other parts of the world
C．admired by scientists in other parts of the world
D．jealous of scientists in other parts of the world
I【69】about it with my friends Frank and Lesley.【70】of them【71】suggest anything, but they promised that they would ask their friends. A few days later【72】I was still in bed,【73】telephoned. "Is that Miss Jenkins？" a man' s voice asked. "I【74】your hobby is photography and I've got a job that might interest you in my clothes factory. My name is Mr. Thomson. " He seemed pleasant on the phone【75】I went to see him. I was so excited that I almost forgot【76】goodbye. "Good luck!" my mother said to me.
I arrived【77】early and when Mr. Thomson came he asked me if I【78】waiting a long time. "No, not long. " I replied. After talking to me for about twenty minutes he【79】me a job —not as a photographer,【80】a model!
(61)
A．early
B．presently
C．soon
D．quickly
