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发布时间：2022-01-06
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52A.increaseB.progressC.improvementD.growth
52
A.increase
B.progress
C.improvement
D.growth
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A. 28
B. 36
C. 45
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更多“52A.increaseB.progressC.improvementD.growth”相关的问题
第2题
Sprained（扭伤）Ankle
One of the most common injuriesteenagers and adults experience is a sprained ankle. A sprain oc-curs when theligaments(韧带)of a joint are twisted and possibly torn. Ligaments are bands of fibersthat hold the bones of a joint in position. A sprain can occur from a suddentwisting at the joint,or a stretching or tearing of the fibers of theligaments. The injured area usually swells(肿胀) and becomes black and blue. Stepping off thesidewalk at the wrong angle or having one foot land in a hole while walking orrunning can leave you rolling on the ground in pain with an ankle on firel Ifyou cannot walk without experiencing intense pain, you must seek medical help.If the pain is manageable,and you can walk, here are three words to help you remember how to treat yourself : Elevate(抬高) Cool Bandage(打绷带)
As soon as there is inj ury to thatligament,there will be a certain amountof bleeding under the skin Once the blood pools around the damaged bloodvessels, swelling occurs. The pressure from the swelling results in additionalstress and tenderness to the region In order to reduce the degree ofswelling,lie down as soon as possible and keep the ankle elevated so that it isactually higher than your heart. Next,to reduce blood distri-bution and keep bleeding(流血) to a minimum,apply a cold pack.After 20 minutes, take the pack off,wait half an hour and then reapply. This can be done several times a day for atotal of three days.
Never leave a cold pack onfor more than 20 minutes at a time. Reducing the temperature in that area foran extended period of time signals the body to increase blood flow to raise thebody tempera-ture! Therefore,one accidentally triggers(引起) more blooddistribution to the affected area by leav-ing a cold pack on for too long! Finally,bandage the ankle. Be careful not towind it too tightly;doing so can restrict blood flow and cause harm to theentire foot.
A sprain is caused by
A.ligament fibers of a joint being twisted
B.blood vessels being hurt in the foot
C.constantly changing body temperature
D.elevating one's ankle
第5题
The police will need to keep awary eye on this area of town
A.naked
B.cautious
C.blind
D.private
第6题
In Your Face
Why is this man so angry？ Wedon't know the reason, but we can see the emotion in his face.Whatever cultureyou have, you can understand the feeling that he is expressing.
Forty years ago, psychologistPaul Ekman of the University of California, San Francisco, became inter-ested in how people's faceshow their feelings. He took photographs of Americans expressing variousemo-tions. Then he showed them to the Fore people, who live in the jungle inNew Guinea.Most of the Fore had never seen foreign faces, but they easily understoodAmerican's expressions of anger, happiness, sadness,disgust, fear, andsurprise.
Then Ekman did the sameexperiment in reverse. He showed pictures of Fore faces to Americans,and theresults were similar. Americans had no problems reading the emotions on theFore people's faces. Ekman's research gave powerful support to the theory thatfacial expressions for basic emotions are the same everywhere. He did moreresearch inJapan,Brazil, andArgentina, and got the samere-sults.
According to Ekman, these sixemotions are universal because they are built into our brains. They developedto help us deal with things quickly that might hurt us. Some emotional triggersare universal as well. When something suddenly comes into sight, people feelfear, because it might be dangerous.But most emotional triggers are learned.For example, two people might smell newly cut grass. One reason spent wonderfulsummers in the country as a child, so the smell makes him happy. The otherperson remembers working very hard on a farm and being hungry, so he feels sad.
Once we make an emotionalassociation in our brain, it is difficult, and sometimes impossible, to changeit. "Emotion is the least changeable part of the brain. " says Ekman.But we can learn to manage our emotions better. For instance, we can be moreaware of things that make us angry, and we can think before we react.
There are many differencesbetween cultures, in their languages and customs. But a smile is exact-ly thesame everywhere.
Paul Ekman studies people's faces in different cultures.
A.Right
B.Wrong
C.Not mentioned
第7题
Why Don't Babies Talk Like Adults？
Over the past half-century,scientists have settled on two reasonable theories related to babytalk.Onestates that a young child's brain needs time to master language, in the sameway that it does to master other abilities such as physical movement. Thesecond theory states that a child's vocabulary level is the key factor.According to this theory, some key steps have to occur in a logical sequencebe-fore sentence formation occurs. Children's mathematical knowledge developsin the same way.
In 2007, researchers at Harvard University, who were studying the twotheories, found a clever way to test them. More than 20,000 internationallyadopted children enter theU. S.each year. Many of them no longer heartheir birth language after they arrive, and they must learn' English more orless the same way infants do-that is, by listening and by trial and error.International adoptees don't take classes or use a dictionary when they arelearning their new tongue and most of them don't have a well-developed firstlanguage. All of these factors make them an ideal population in which to testthese com-peting hypotheses about how language is learned.
Neuroscientists JesseSnedeker, Joy Geren and Carissa Shafto studied the language development of 27children adopted fromChinabetween the ages of two and five years. These children began learn- ing Englishat an older age than US natives and had more mature brains with which to tacklethe task. Even so, just as with American-born infants, their first Englishsentences consisted of single words
and were largely bereft(缺乏的)of functionwords, word endings and verbs. Theadoptees then went through the same stages as typical American-born children,though at a faster clip. The adoptees and native children started combing wordsin sentences when their vocabulary reached the same sizes, fur-ther suggestingthat what matter is not how old you are or how mature your brain is, but thenumber of words you know.
This finding-that havingmore mature brains did not help the adoptees avoid the toddler-talkstage-suggests that babies speak in babytalk not because they have baby brains,but because they have only just started learning and need time to gain enoughvocabulary to be able to expand their conversa-tions. Before long, the one-wordstage will give way to the two-word stage and so on. Learning how to chat likean adult is a gradual process.
But this potential answeralso raises an even older and more difficult question Adult immigrants wholearn a second language rarely achieve the same proficiency in a foreignlanguage as the average child raised as a native speaker. Researchers have longsuspected there is a "critical period" for language developm'ent,after which it cannot proceed with full success to fluency. Yet we still do notunderstand this critical period or know why it ends.
What is the writer's main purpose in Paragraph 2？
A.To reject the view that adopted children need two languages
B.To argue that culture affects the way children learn a language
C.To give reasons why adopted children were used in the study
D.To justify a particular approach to language learning
第8题
DNA fingerprinting is a technique of
A.grouping DNA strands into structures
B.segmenting DNA with probes
C.constructing body tissues by enzymes
D.identifying a person by comparing DNAs
第10题
Itseemed incredible that he had been there a week already.
A.right
B.obvious
C.unbelievable
D.unclear
