试题详情
完形填空 适中0.65 引用1 组卷118

Dog lovers are well aware of the ability of a dog to communicate with its eyes. Now, scientific research suggests this ability developed over time as dogs learned to live with humans.

Just as with humans, the eyes can be one of the most ________ things about dogs, the animal known in many cultures as “man’s best friend.”

But a new study found evidence that dogs developed in physical ways to present “puppy dog eyes” as a way to help ________humans. Researchers in Britain and the United States did the study. The study compared the ________muscles of dogs and wolves, which share ancestral history. Dog ________ from wolves after being domesticated about 33,000 years ago. During that time, dog changed physically and behaviorally to ________ life with humans.

The researchers ________ the heads of six dogs and two wolves for comparison. They found the facial structure of both animals was mostly very similar. But one major________ was found above the eyes.

The dogs were found to have two well-formed muscles around the eye that were not________in the wolves. These small muscles permit dogs to ________ raise their inner eyebrow, the study found.

Comparative psychologist Juliane Kaminski led the research. The team suggests this eyebrow-raising movement causes a nurturing feeling in humans because it makes the dogs’ eyes appear larger.

This ________also makes the dog look more like a human baby. The eye movement is similar to that which humans make when they are sad, the statement said. “The evidence is________ that dogs developed a muscle to raise the inner eyebrow after they were domesticated from wolves, Kaminski said.

In a separate part of the study, the researchers observed how 27 dogs and nine wolves ________ with a human. “We also studied dogs' and wolves' behavior. And when ________to a human for two minutes, dogs raised their inner eyebrows more and at higher intensities than wolves,” Kaminski said.

The researchers suggest that the eye movements developed over time as a way for dogs to get humans to do things for them. This could ________ humans giving them food, care or attention.

The only dog species in the study that did not have the muscles was the Siberian husky, which is an ancient kind. The husky could be the best living example of what the ________ between dogs and wolves looked like.

【小题1】
A.obviousB.innovativeC.imposingD.appealing
【小题2】
A.improve onB.connect withC.speak ofD.cooperate with
【小题3】
A.flexibleB.strongC.facialD.similar
【小题4】
A.dated backB.broke offC.built upD.moved away
【小题5】
A.buildB.imagineC.fitD.change
【小题6】
A.collectedB.estimatedC. electedD.examined
【小题7】
A.featureB.similarityC.differenceD.puzzle
【小题8】
A.absentB.invisibleC.presentD.dominant
【小题9】
A.intenselyB.badlyC.scientificallyD. slowly
【小题10】
A.feelingB.reactionC.expressionD.eyebrow
【小题11】
A.powerfulB.fascinatingC.disappointingD.satisfying
【小题12】
A.playedB.interactedC.toleratedD.competed
【小题13】
A.tailoredB.relatedC.attachedD.exposed
【小题14】
A.involveB.considerC.suggestD.appreciate
【小题15】
A.originB.linkC.differenceD.evolution
23-24高三上·上海·期中
知识点:动物人与动植物说明文 答案解析 【答案】很抱歉,登录后才可免费查看答案和解析!
类题推荐

Today we continue our series on ecology and conservation with a look at a particularly endangered member of the black bear family. One in ten black bears is ________ born with a white coat, which is the result of a/an ________ gene that surfaces in a few. Local people have named it ‘the spirit bear’. And according to the legends of these communities, its snowy fur brings with it a special power. Because of this, it has always been highly ________ by them—so much that they do not speak of seeing it to anyone else. It is their way of protecting it when strangers visit the area.

The white bear’s ________ is quite interesting. The bear’s strong relationship with the old-growth rainforest is a complex one. The white bear relies on the huge centuries-old trees in the forest in many ways. ________, the old-growth trees have extremely long roots that help prevent erosion (腐蚀) of the soil along the banks of the many fish streams. Keeping these banks undamaged is important because these streams are home to salmon, which are the bear’s main food ________. The bear’s feeding habits nurture the forest ________. As the bears eat the salmon, they abandon the skin and bones in great amounts on the forest floor, which provide vital nutrients. These produce vegetation that ________ thousands of other types of life forms, from birds to insects and more.

Today, the spirit bear lives off the coast of the province of British Columbia on a few islands. There is great concern for their survival since it is estimated that less than two hundred of these white bears remain. The best way to protect them is to make every effort to preserve the ________ balance of their forest environment—in other words, their ecosystem.

The greatest ________ to the bear’s existence is the loss of its habitat. Over many years, logging companies have stripped the land by ________ a large number of trees. In addition, they have built roads which have fractured the areas where the bear usually ________, and many hibernation sites have also been lost. The logging of the trees along the streams has damaged the places where the bears fish. To make matters worse, the number of salmon in those streams is declining because there is no legal ________ on fishing at the moment.

All these ________ have a negative impact on the spirit bear’s very existence, which is made all the more fragile by the fact that reproduction among these bears has always been ________ low. While it is important to maintain the spirit bear’s habitat, there also needs to be more emphasis on its expansion. The move is justified as it will also create space for other bears that are losing their homes.

【小题1】
A.originallyB.actuallyC.speciallyD.cautiously
【小题2】
A.externalB.scarceC.circularD.special
【小题3】
A.justifiedB.threatenedC.regardedD.instructed
【小题4】
A.habitatB.behaviorC.habitD.data
【小题5】
A.MoreoverB.For exampleC.In other wordsD.In addition
【小题6】
A.originB.issueC.resourceD.source
【小题7】
A.by the wayB.in returnC.to some extentD.on the contrary
【小题8】
A.stimulatesB.owesC.originatesD.sustains
【小题9】
A.typicalB.specificC.delicateD.original
【小题10】
A.threatB.symbolC.signD.effect
【小题11】
A.calling inB.cutting downC.pushing aroundD.wearing out
【小题12】
A.feedsB.sleepsC.revealsD.indicates
【小题13】
A.possibilityB.ambitionC.limitD.law
【小题14】
A.doubtsB.influencesC.guaranteesD.continues
【小题15】
A.optimisticallyB.reliablyC.fundamentallyD.disappointingly

China Post issued (发行) a set of special zodiac (生肖) stamps in honor of 2019 Chinese Lunar New Year, or the Year of the Pig. Famous Chinese _________ Han Meilin designed (设计) the set of stamps _________ is most known for his Fuwa dolls made for the 2008 Summer Olympics in Beijing.

If you, like me, were born in the Year of the Pig then you are _________, thoughtful and loyal (忠诚的). The Year of the Pig is filled with good wealth.

Now, let’s _________ a closer look at this interesting animal. Pigs were first kept by man about 9, 000 years ago, and are still a very common _________ animal in many parts of the world. We don’t just use pigs for their meat--- almost every part of the animal is used. The hair is used for artists’ brushes. The fat is used _________ floor wax (蜡), rubber (橡胶) and plastics.

Pigs have also been important in the world of entertainment. In 25 the film Babe starred (使主演) a loveable talking pig as its main character. The film _________ an Oscar Award. In England you can even go to watch pig racing. A farmer, Rob Shepherd, has been raising money _________ charity by holding pig races an his farm. _________ seems that people don’t just want to eat pigs!

Pigs also play an important role in the English language. For example, if someone say that he __________ to the sun one day, you can says “Pigs might fly!” to him. Hungry? Well then, you can say “pig out” and eat lots of food.

【小题1】
A.musicianB.actorC.artistD.engineer
【小题2】
A.whichB.whoC.whoseD.what
【小题3】
A.stupidB.lazyC.shyD.brave
【小题4】
A.takeB.keepC.getD.remain
【小题5】
A.parkB.zooC.farmD.garden
【小题6】
A.makesB.makeC.makingD.to make
【小题7】
A.wentB.wonC.playedD.beat
【小题8】
A.inB.byC.asD.for
【小题9】
A.ThisB.ThatC.ItD.One
【小题10】
A.will travelB.has traveledC.travelsD.traveled

Like many families, we had a dog — Little Joe. We all loved him dearly. He always trotted (小跑) around the streets. We tried to teach him about the ________ of the road, and finally locked him in the yard. However, one day, Little Joe dug a hole under the fence and ________.

Sometime later, the ________ news came that a truck had seriously injured Little Joe. We children ran to the ________ of the accident. Apparently unable to move, he lay with his eyes open, awaiting death by a policeman’s bullet, the ________ method in those days of dispatching (处决) injured animals. Tears filling our eyes, we ________around him, frustrated by our inability to respond to the ________ for help in his eyes. The policeman ________ us away from the dog and drew his gun. Wide-eyed, we began to back away with feet that seemed to be made of ________.

Suddenly the crowd began to ________ . My father elbowed (用肘推) his way through and spoke with ________ to the young policeman. “Put that thing away!” Then, ________, he removed his worn jacket and carefully ________ it around Little Joe. Little Joe’s broken body could not have been moved with more ________.

I’ll never forget that homeward journey. My father led a group of admiring children. We held our heads high with pride as we ________ behind the man who had saved our dog.

After struggling for several days, Little Joe finally survived. He went on to live a long life.

【小题1】
A.ruleB.dangerC.constructionD.length
【小题2】
A.turned awayB.jumped outC.fled awayD.ran over
【小题3】
A.alarmingB.embarrassingC.amazingD.rewarding
【小题4】
A.wayB.sceneC.sightD.direction
【小题5】
A.scientificB.supportiveC.differentD.accepted
【小题6】
A.turnedB.lookedC.gatheredD.got
【小题7】
A.appealB.claimC.applicationD.passion
【小题8】
A.scaredB.sawC.gaveD.signaled
【小题9】
A.featherB.leadC.woodD.leather
【小题10】
A.respondB.screamC.prayD.part
【小题11】
A.authorityB.enthusiasmC.confidenceD.sincerity
【小题12】
A.going awayB.stepping asideC.bending downD.stretching out
【小题13】
A.focusedB.packedC.hungD.wrapped
【小题14】
A.expressionB.curiosityC.gentlenessD.elegance
【小题15】
A.ranB.marchedC.leftD.stayed

组卷网是一个信息分享及获取的平台,不能确保所有知识产权权属清晰,如您发现相关试题侵犯您的合法权益,请联系组卷网