Now I'm living in a big city with a respectable job downtown.Every step I walk from the train station to the officcseems victorious to me.However,I've been pretending and I'm fed up with it.Occasionally,fuller vowels roll off mytongue when encouraged by an extra glass of whiskey.But if my old self escapes from my lips in my new life,thosesyllables (flatten back out minutes later.The quick,unconscious going back to the safety of the unaccentedmakes me feel as if I'm a fraud-a girl who forgot where she comes from.Then,gradually Ive become a kind ofhomesick that leads me to play old Friday Night Lights episodes or put on the Highwomen.record and dance around,singing with all the accents I've got left.My grandmother used to tell me,"Girl,don't you forget where you come from."Memories are corrupted by time,but this one has remained impressed on my mind.So,I decide to move back.I'm still searching for what it means to besouthern,but now'I m doing it with all the“y'alls”,and“ain'ts'”'ve kept back for so long.24.Why did the author decide to get rid of her southern accent?A.Because it reflected her shameful past.B.Because it made her laughed at by others.C.Because she hated the southern rural life.D.Because she was misled by prejudice.25.What's the main idea of paragraph 3?A.Emily,Lorelai,Rory and Paris were all the author's friends.B.The author made every effort to rebuild her accent.C.A small-town girl worked hard to get successful in big cities.D.The author felt discouraged in the process of polishing her oral English.26.What contributed most to the author's rcturn to her southern accent?A.Her grandmother's words.B.Her homesickness.C.Her boredom of pretending.D.Her over-drinking of whisky.27.What message does the passage want to convey?A.Everyone has a skeleton in his closet.B.There's always a silver lining in the cloud.C.You should never compromise who you are.D.God helps those who help themselves.CBefore the genome (project started,some people were quite critical,arguing that it was a waste of timeto sequence (the genome end to end;we should just focus on sequencing the genes,as if all of humans'biological richness was going to lie in the genes.Thank goodness we didn't listen to those critics.Because if we haddone the shortcut and only concentrated on the genes,we would have only ignored the biological complexity of humans.We've learned that while only 1.5 the letters of the human genome directly encode for what are classically knownas protein-coding genes (DNA that gets made into RNA,which gets made into protein).Actually there'sa much larger part of the human genome that is biologically important.It's widened our concept of a gene,because wenow know that sometimes DNA may make RNA,and RNA may go to do all sorts of biological things.However,20years ago we couldn't have considered that RNAs that didn't make proteins would actually be important for something.The genes those RNAs were copied from were counted as broken genes.They were junk.Yet the project pushes us tothink about all the other biological functions in DNA outside the genes.And even when we find a protein-coding gene,we're not just making one protein.We're making,on average,7or 8 different versions of this protein from the same gene.After RNA gets copied from DNA,you can mix and match thelittle parts of a gene to make completely new proteins.I once worked on a set of proteins at University,studying howthey had sugar molecules (added to them after they were made,and how,depending upon what tissue theywere made in,they got different structures of sugar molecules attached.And each of those proteins could have differentmodifications depending on what tissue,what conditions,what development stage,etc.This is the incredibleenlargement of complexity.It's not in our gene number.We have a long way to go to fully understand all this.英语·第4页（共8页）
本文标签：
排行榜
热门标签