全国100所名校最新高考冲刺卷英语2023届Y1

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10、2023-2024全国100所名校最新高考冲刺卷英语一答案

But why does it happen?Firstly,we need to understand how hair gets its color.Your hair is made up of cells called melanocytes(黑素细胞)which producepigments()as they grow into the hair fiber.There are two different types ofmelanins(黑色素)：eumelanins(真黑色素)and pheomelanins(嗜黑色素).The formerproduces black and brown pigments,while the latter produces red and yellowpigments.The exact amount of these pigments decides whether a person has black,brown,blonde or red hair.As we age,the ability of the melanocytes to produce more pigments weakens.That's because our hair grows in different periods.The growing period lasts between three and five years,after which our follicles()turn off for about three months to rest and get ready to grow more hairs.This goes roundand round and,after a time,our bodies aren't as good at producing new hairs.Scientists are continuing to try and find ways to prevent greying hair.A team ofscientists in France are working to try and stop the melanocytes from being damagedat the end of each hair cycle.They are trying to use a special enzyme()to protectthe cells from damage.If successful,it could lead the way for new products that keepour hair full of color for years to come.24.What does the phrase "an old wives'tale"in paragraph 1 probably mean?A.A wrong belief.B.A useful talk.C.A scientific rule.D.A helpful experience.25.What do we know about red hair?A.It doesn't turn grey as people get older.B.It contains more pheomelanins than eumelanins.C.The amount of pigments in it doesn't change over time.D.People with red hair have weaker ability to produce pigments.26.What do the French scientists aim to do?A.To repair damaged hair follicles.B.To protect hair cells against damage.C.To shorten the hair cycle to protect the hair.D.To study the relationship between health and hair color.27.What can be a suitable title for the text?A.Grey Hair:a Symbol of Huge PressureB.Grey Hair:a Symbol of Declining HealthC.Cells:the Cause of New Hair GrowthD.Cells:the Cause of Color Change of HairCYou don't talk;you watch talk shows.You don't play games;you watch gameshows.Travel,relationships,risk...Every meaningful experience must be packagedand delivered to you to watch at a distance.In this way you can remain ever-shelteredconsumers who can't bring themselves to rise from their couches,break a sweat andparticipate in life."Games and apps are meant to get you addicted,"said Gabe Zichermann,adesigner of gamification.As an example,think of a photo-sharing app like Instagramor WeChat.After you post a new image to the social media platform,the app maysend you a message if someone likes or comments on it.Tapping that message willtake you back to the platform,where you're encouraged to provide an additionalcomment or view the related information of the person who liked or commented onyour post."This begins a new cycle of involvement with the product,"Zichermannsaid.Other techniques to keep users online can arise from the data that apps collectfrom you as you use them,whether it's the number of steps you take in a day or yourpreference of puppy videos to kitten ones,according to Amy Jo Kim,a game designerof eBay and Netflix.You might also see behavior modification techniques in health andfitness tracking apps.For example,the Fitbit app,designed to accompany thewearable fitness device,lets users earn badges()for hitting goals,which theythen can share via social media.According to the Pew Research Center,26%of American adults say they goonline"almost constantly".Where people choose to spend their time online variessignificantly,but gaming and social media are the front runners.Technology overusehas appeared as a modern disease and recently,the World Health Organizationclassified gaming disorder as a mental health condition.Beyond that,experts saytechnology overuse has the potential to prevent growth and development of socialskills,mask mental illness and isolate us in an increasingly connected world.