Marmoset monkeys exist on a branch of the evolutionary tree that is distinct from the one that led to humans. But they constantly
A new study further
One possibility is that an individual practices
The other explanation for charitable behavior
Scientists call this the “pay to stay” model. Importantly, for both of these models to work, acts of kindness must have a(n)
Anthropologists (人类学家) from the University of Zurich carefully documented how often, in groups and in conditions that found caregiver and baby separated from the crowd, an adult would share his or her cricket. When alone with a baby
A.comfort | B.astonish | C.alarm | D.convince |
A.evolving | B.communicating | C.organizing | D.parenting |
A.extended | B.extensive | C.exclusive | D.enlarged |
A.shines | B.damages | C.affects | D.protests |
A.at play | B.in private | C.on schedule | D.by accident |
A.selfish | B.reluctant | C.selfless | D.negative |
A.generosity | B.wisdom | C.independence | D.governance |
A.count on | B.go after | C.appeal to | D.benefit from |
A.confirms | B.ensures | C.complains | D.assumes |
A.Effort | B.Temptation | C.Failure | D.Promise |
A.atmosphere | B.audience | C.feedback | D.judge |
A.statistics | B.expectation | C.result | D.opposite |
A.stretching | B.fighting | C.begging | D.striving |
A.prize | B.fortune | C.award | D.reputation |
A.motivation | B.consideration | C.invitation | D.creation |
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【推荐1】Dogs Bow to Wolves as Cooperators
If you need help herding some sheep or retrieving a stick, you can count on your canine companion, because dogs always seem to be keen on
For thousands of years, humans have been breeding dogs that can do all sorts of neat tricks. And because pups aim to please, we’ve come to think that domestication has somehow
“So wolves live in
That’s Sarah Marshall-Pescini of the Wolf Science Center at the University of Vienna. She and her colleagues decided to test dogs’ and wolves’
A dozen wolves and 14 dogs took the challenge. And the results? The wolves ran circles around their doggie descendants. In some 400 attempts, the wolf teams
Now, it’s not that dogs are less earnest learners. Or that they turned tail and avoided the apparatus (装置). Marshall-Pescini says the pooches (杂种狗) were
“What seemed to be happening was that they didn’t want to get into conflict with each other. So they wouldn’t both go and try things on it but rather took it
So rather than step on each other’s toes, the dogs took turns bowing out, giving their teammate a chance at the plate. That show of social grace left the poor pups with their tummies growling. And no
A.lending a paw | B.grabbing a bite | C.making a mess | D.taking a stand |
A.lost | B.skilled | C.decisive | D.confident |
A.disturbed | B.boosted | C.preferred | D.affected |
A.remedies | B.winners | C.companions | D.loners |
A.closely knit | B.hard won | C.locally sourced | D.well regulated |
A.burden | B.basis | C.mark | D.dependence |
A.In contrast | B.In particular | C.In reality | D.Strangely yet |
A.exceptional | B.hesitant | C.inseparable | D.loose |
A.relevant | B.related | C.relative | D.combined |
A.equipped | B.presented | C.crowned | D.lined |
A.serve | B.access | C.trap | D.fetch |
A.handled | B.threw | C.spotted | D.scored |
A.bored | B.stressful | C.curious | D.upset |
A.in turns | B.in balance | C.at east | D.in order |
A.treat | B.delight | C.pleasure | D.sight |
【推荐2】One of Asia’s best-known tourist attractions is taking a major stand for animals.
Following the
Local outlet the Khmer Times reports that on November 15, two of the 14 elephants
In 2016, an elephant named Sambo died at Angkor, drawing worldwide
According to Angkor Enterprise, which manages park admissions, the UNESCO-listed site is
A.steps | B.pressure | C.example | D.trend |
A.continue | B.improve | C.ban | D.reform |
A.stopped | B.undertaken | C.established | D.begun |
A.currently | B.permanently | C.steadily | D.compulsorily |
A.famous | B.shabby | C.typical | D.remote |
A.lent | B.contributed | C.sent | D.submitted |
A.clinic | B.forest | C.circus | D.zoo |
A.participants | B.pets | C.performers | D.animals |
A.gentle | B.dangerous | C.strong | D.interesting |
A.routine | B.facility | C.activities | D.accommodation |
A.attention | B.donation | C.respect | D.sympathy |
A.come from | B.accused of | C.led to | D.blamed on |
A.consumption | B.exhaustion | C.annoyance | D.absorption |
A.leaked | B.claimed | C.published | D.investigated |
A.popularity | B.existence | C.presentation | D.population |
A.solving | B.facing | C.emphasizing | D.revealing |
A.longest | B.widest | C.latest | D.biggest |
A.refused | B.bought | C.entered | D.paid |
A.compensate | B.switch | C.corrupt | D.impact |
A.volunteers | B.employees | C.travelers | D.enthusiasts |
【推荐3】A video last week showed a mini house in a high chair eating a bowl of carrots. It might seem ridiculous, but it might also be the logical extension of a growing trend; treating animals as human and treating pet as children,
There seems to be
Using
Every pet has its own parent—another cat or dog that feed and teaches it to survive in the animal kingdom. Our love for pets results from their
Pet and children serve different roles. Ignoring or denying these differences
A.attractive | B.equivalent | C.opposite | D.valuable |
A.Changes | B.Results | C.Explanations | D.Examples |
A.hang up | B.take up | C.pick up | D.dress up |
A.conflict | B.distinction | C.confusion | D.balance |
A.create | B.adopt | C.interpret | D.enrich |
A.lightly | B.frequently | C.practically | D.habitually |
A.unfriendly | B.abnormal | C.inaccurate | D.inactive |
A.attention | B.freedom | C.difference | D.separation |
A.without saying | B.out of control | C.beyond expectation | D.a long way |
A.best | B.joy | C.trick | D.opposite |
A.Moreover | B.However | C.Otherwise | D.Therefore |
A.Preparing | B.Exchanging | C.Possessing | D.Searching |
A.popular | B.miserable | C.dependent | D.demanding |
A.shelters | B.influences | C.upsets | D.benefits |
A.shift | B.attitude | C.misunderstanding | D.awareness |
【推荐1】If economist are so smart, why ain’t they rich?
After I wrote a newsletter last month on how economists’ views differ from those of ordinary people, I got emails to the effect of, “If economists are so smart, why ain’t they rich?” I’m not an economist, so the question doesn’t
1. Economists aren’t trying to be rich. A lot of economists go to work for institutions of government and higher education. You don’t go to work for such employers because you
2. Economists are too good at economics. Learning a little economics is useful for a lot of
3. Economists aren’t actually smart. I don’t
4. Economists are
5. Economists do think they can beat the market, but they’re wrong. A great
Warren Buffett, despite earning a master of science degree in economics from Columbia University in 1951, told a CNBC interviewer in 2016, “I don’t pay any attention to what economists say, frankly.” He is
A.benefit | B.annoy | C.amaze | D.sacrifice |
A.therefore | B.moreover | C.though | D.instead |
A.aspire | B.object | C.contribute | D.appeal |
A.challenge | B.knowledge | C.imagination | D.money |
A.profitable | B.academic | C.professional | D.competitive |
A.merit | B.opportunity | C.mistake | D.shortage |
A.oppose | B.convince | C.buy | D.confront |
A.short-sighted | B.well-rounded | C.under-educated | D.narrow-minded |
A.prospects | B.allowance | C.expertise | D.weaknesses |
A.inspired | B.restrained | C.overwhelmed | D.fueled |
A.bother | B.overlook | C.initiate | D.withdraw |
A.bans | B.distinguishes | C.isolates | D.discourages |
A.obstacle | B.example | C.highlight | D.consequence |
A.overtook rivals | B.went bankrupt | C.reaped rewards | D.was launched |
A.sophisticated | B.false | C.biased | D.right |
【推荐2】While people who are both trustworthy and capable are the most sought after when it comes to team assembly, friendliness and trustworthiness are often more important factors than ability.
“We assume that people are
Maupin and her colleagues focused on a group of MBA students to conduct their study. Students were
“We wanted to find out what people did to
The researchers
●Challenging voice: Communicating in a way that challenges the present circumstances and is
●Supportive voice: Communicating in a way that
The researchers found that people who
“As might be expected, anyone who was very strong in terms of signaling both their human and social capital were extremely sought after. They’re doing all the right things to
However, the researchers found that students who only exhibited social capital through
“Our findings suggest that when people feel like they can trust you, even if you’re not
A.qualified | B.selected | C.examined | D.accounted |
A.dissatisfied | B.favourite | C.permanent | D.comfortable |
A.sacrifice | B.exchange | C.prohibit | D.contribute |
A.deliberately | B.originally | C.randomly | D.purposefully |
A.bargain | B.assess | C.negotiate | D.neglect |
A.signal | B.contribute | C.devote | D.manage |
A.indefinitely | B.frequently | C.considerably | D.specifically |
A.occasion | B.mission | C.degree | D.opinion |
A.engaged in | B.focused on | C.gotten across | D.taken off |
A.adjusts | B.decreases | C.monitors | D.strengthens |
A.exhibited | B.developed | C.evaluated | D.concealed |
A.separating | B.dominating | C.assembling | D.maintaining |
A.establish | B.resolve | C.analyze | D.estimate |
A.challenging | B.moderate | C.healthful | D.supportive |
A.doubtfully | B.necessarily | C.questionably | D.fortunately |
【推荐3】Nearly five decades ago, in 1977, Richard Peto, an epidemiologist at the University of Oxford, observed a contradiction. Cancer begins as mutation(突变)in a single cell. Organisms with more cells,
Inspired by Peto’s paradox, as this contradiction has come to be known, researchers are exploring rates of cancer and resistance to cancer in thousands of animal species, with an emphasis on
Dr Tollis found that as ancestral whales grew, numerous
Cancer biologists are
A.however | B.therefore | C.otherwise | D.furthermore |
A.resistant | B.contrary | C.subject | D.proportional |
A.low | B.contrary | C.constant | D.rapid |
A.detecting | B.diagnosing | C.preventing | D.studying |
A.alarming speeds | B.unique appearances | C.extraordinary gifts | D.heavy weights |
A.adaptations | B.introductions | C.contributions | D.modifications |
A.fundamental | B.advantageous | C.irreversible | D.long-term |
A.suspends | B.repeats | C.completes | D.initiates |
A.alters | B.limits | C.extends | D.maintains |
A.accompany | B.block | C.avoid | D.promote |
A.by means of | B.with regard to | C.in favor of | D.on account of |
A.associated | B.equipped | C.familiar | D.satisfied |
A.related | B.unknown | C.applied | D.peculiar |
A.tumor-eliminating | B.growth-stimulation | C.cancer-causing | D.cell-dividing |
A.forming | B.dividing | C.killing | D.surviving |
【推荐1】Nature Therapy
We need the tonic of wildness... At the same time that we are earnest to explore and learn all things, we require that all things be mysterious and unexplorable, that land and sea be indefinitely wild, unsurveyed and unfathomed by us because unfathomable. We can never have enough of nature.
--Thoreau
One major difference between our current lifestyle and those of our evolutionary past is an increasing
We are now far
Dr. Gregory Bratman’s group at Stanford has published a couple of paper following a small group of healthy volunteers told to have a 5 kilometers walk in the San Francisco Bay area. Half walked along a busy street while the other half went for a/an
So there we have it in a world and environment where our brains are working overtime and we think and roll over ideas and worry,
A.resistance | B.isolation | C.interruption | D.distance |
A.Currently | B.Generally | C.Historically | D.Fortunately |
A.local | B.imposing | C.fascinating | D.standard |
A.assistance | B.evidence | C.belief | D.approach |
A.cycling | B.swimming | C.adventure | D.hike |
A.removed | B.rid | C.driven | D.dropped |
A.slight | B.severe | C.similar | D.negative |
A.dominantly | B.lively | C.merely | D.significantly |
A.exposure | B.link | C.availability | D.necessity |
A.tolerate | B.unwind | C.swing | D.resolve |
A.casual | B.earnest | C.upright | D.scenic |
A.reduced | B.increased | C.intensified | D.balanced |
A.responses | B.contribution | C.approach | D.exposure |
A.communities | B.transportations | C.greenspaces | D.facilities |
A.In a word | B.For instance | C.In the meantime | D.In particular |
【推荐2】Many animals move from one place to another at certain times of the year. This
Every
The solution to the mystery of the monarch’s amazing ability comes at a time when it is in serious trouble. Its
A.annual | B.monthly | C.daily | D.unusual |
A.buy | B.find | C.send | D.drop |
A.spring | B.summer | C.autumn | D.winter |
A.easy | B.disappointing | C.exciting | D.difficult |
A.travel | B.run | C.drive | D.crawl |
A.north | B.south | C.east | D.west |
A.Soon | B.Therefore | C.However | D.Besides |
A.habitat | B.problem | C.way | D.answer |
A.adapt | B.adjust | C.tell | D.memorize |
A.size | B.position | C.heat | D.color |
A.scientist | B.professor | C.flight | D.butterfly |
A.Eventually | B.Immediately | C.Frequently | D.Obviously |
A.consumption | B.income | C.population | D.output |
A.Hopefully | B.Sadly | C.Usually | D.Gradually |
A.eyes | B.wings | C.determination | D.behaviour |
【推荐3】The universal use of technology has resulted in a constant current of information interrupting the “flow” of our life. This
But how is this mass distraction
The
Apart from the effects of technology on our
Many of today’s children are growing up with a built-in dependence on devices, making it difficult for them to feel
Over time these children forget how to relate with each other because they have become habituated to using technology to
A.innovative | B.pleasant | C.typical | D.disturbing |
A.isolated | B.flooded | C.informed | D.promoted |
A.affecting | B.enhancing | C.highlighting | D.establishing |
A.print | B.screen | C.news | D.online |
A.attention | B.association | C.demand | D.distraction |
A.belonging | B.independence | C.loneliness | D.simplicity |
A.unavailable | B.approachable | C.changeable | D.prospective |
A.inability | B.potential | C.anxiety | D.ambition |
A.communication | B.attention | C.health | D.intelligence |
A.agree with | B.adapt to | C.contributes to | D.impacts on |
A.rare | B.common | C.strange | D.popular |
A.fascinated | B.comfortable | C.restless | D.annoyed |
A.convenient | B.adaptable | C.challenging | D.inspiring |
A.maintain | B.endure | C.avoid | D.pursue |
A.On the contrary | B.In fact | C.In addition | D.On the other hand |