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Scientists believe they could bring the ...

    Scientists believe they could bring the likes of dodos(渡渡鸟)back from the dead through cloning experiments in the near future which could see the flightless birds revived from their extinction.

The big bird, which was about a metre tall and weighed up to 18 kilograms, was native to Mauritius but became extinct in the 1600s, shortly after humans discovered the island. However, 400 years later, scientists now believe that they could bring the dodo back to life through cloning of some of its closest living relatives.

Scientists recently published a paper which identified the overall genomic structure of dinosaurs. The team achieved this by tracing the ancestors (祖先)of birds the dinosaurs closest living relatives to create the genomic structure. Researchers involved in the study say it is an emphatic ‘no’ when it comes to the possibility of ever being able to clone dinosaurs, but they do say that more recently extinct birds like the carrier pigeon and the dodo could be brought back due to the fact that they have such close living relatives.

University of Kent scientists Darren Griffin and Rebecca O’Connor wrote in an article for The Conversation: “We discovered that birds and most flightless dinosaurs had a lot of chromosomes (packages of DNA). Having so many allows animals to generate variation, the driver of natural selection.”

“However, though it is a long shot, it may be possible in future to use Jurassic Park technology to help avoid some of the harm that humans have caused. Mankind has seen the extinction of well-known avian dinosaurs such as the dodo and the passenger pigeon.”

“Recovery(恢复)of DNA that is a only few hundred years old from these birds is a far more realistic way. It may also be that eggs from closely related living species might just be good enough. In the right conditions we may be able to use them to resurrect some of these species from extinction.”

1.What can we learn about dodos?

A.They flew to Mauritius in the 1600s. B.They could be used to clone pigeons.

C.They would die out in the near future. D.They might be brought back to life soon.

2.How do scientists revive dodos?

A.They clone dodos’ closest living relatives. B.They trace those endangered birds closely.

C.They look for dinosaurs’ living conditions. D.They identify genomic structure of pigeons.

3.What does the underlined word “resurrect” in the last paragraph mean?

A.Learn. B.Protect.

C.Revive. D.Prevent.

4.What is the best title for the text?

A.Scientists Expect to Clone the Dodos. B.Scientists Find Close Living Relatives.

C.Dinosaurs Have Already Been Extinct. D.Some Species Have Been Discovered.

 

1.D 2.A 3.C 4.A 【解析】 这是一篇新闻报道。文章主要介绍了科学家希望通过克隆实验,在不久的将来,让这种不会飞的渡渡鸟从灭绝中复活。 1. 细节理解题。根据文章第一段内容“Scientists believe they could bring the likes of dodos back from the dead through cloning experiments in the near future which could see the flightless birds revived from their extinction.( 科学家们相信,他们可以通过克隆实验,在不久的将来,让这种不会飞的鸟从灭绝中复活。)”可知,渡渡鸟有可能通过克隆实验而复活。故选D项。 2. 细节理解题。根据文章第二段内容“However, 400 years later, scientists now believe that they could bring the dodo back to life through cloning of some of its closest living relatives.”可知,科学家可以通过克隆一些与渡渡鸟最近的亲戚,使其复活。故选A项。 3. 词义猜测题。分析可知,划线单词所在句“In the right conditions we may be able to use them to resurrect some of these species from extinction.”中的宾语代词them应是指代前句“It may also be that eggs from closely related living species might just be good enough.( 也有可能是来自紧密相关的现存物种的卵就足够好了。)”提及的eggs,即:蛋; 卵。划线单词句应是承接前一句,在解释可以在适当的条件下将蛋/卵孵化来复活一些灭绝的物种。由此可推知划线单词“resurrect”应是“复活”含义,与选项C“Revive.(复兴;复活)”表达含义一致。故选C项。 4. 主旨大意题。文章体裁为新闻报道,根据该体裁特点首段点明主旨要义,即:Scientists believe they could bring the likes of dodos back from the dead through cloning experiments in the near future which could see the flightless birds revived from their extinction.( 科学家们相信,他们可以通过克隆实验,在不久的将来,让这种不会飞的鸟从灭绝中复活。),因此可知,文章的主要内容为科学家有望使渡渡鸟复活,并在后文详细解释了可以通过克隆一些与渡渡鸟最近的亲戚,使其复活。选项A“Scientists Expect to Clone the Dodos.( 科学家希望克隆渡渡鸟。)”贴合主旨要义。故选A项。
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    Dickens was the most popular novelist of his time, and remains one of the best-known and most-read of English authors. He created some of the world’s best-known fictional characters and is regarded as the greatest novelist of the Victorian era.

Among fellow writers, Dickens has been admired. Leo Tolstoy, G. K. Chesterton, and George Orwell praised his realism and comic voice as well as his drawing people’s attention to children and the poor. The French writer Jules Verne called Dickens his favorite writer, writing his novels “stand alone, dwarfing all others by their amazing power and suitable expression.” The Dutch painter Vincent van Gogh was inspired by Dickens’s novels in several of his paintings like Vincent’s Chair and in an 1889 letter to his sister stated that reading Dickens, especially A Christmas Carol, was one of the things that was keeping him from killing himself

A Christmas Carol is most probably his best-known story, with frequent new adaptations. It is also the most-filmed of Dickens’ stories, with many versions dating from the early years of cinema. According to the historian Ronald Hutton, the current state of the observance of Christmas is largely the result of a mid-Victorian revival of the holiday spearheaded by A Christmas Carol. William Makepeace Thackeray called the book “a national benefit, and to every man and woman who reads it a personal kindness”.

At a time when Britain was the major economic and political power of the world, Dickens highlighted the life of the forgotten poor and disadvantaged within society. Through his journalism he campaigned on specific issues — such as sanitation and the workhouse — but his fiction probably demonstrated its greatest prowess (非凡的才能) in changing public opinion on class inequalities. The exceptional popularity of Dickens’ novels not only displayed his outstanding ability to create attractive storylines and unforgettable characters, but also ensured that the Victorian public confronted issues of social justice that had commonly been ignored.

1.What is the second paragraph mainly about?

A.Vincent van Gogh appreciates Dickens’ novels very much.

B.George Orwell sees Dickens’ novels as a minor of society.

C.Jules Verne thinks highly of Dickens and Dickens’ novels.

D.Dickens’ fellow writers comment on his novels positively.

2.What is Thackeray’s attitude towards A Christmas Carol?

A.Critical. B.Appreciative.

C.Doubtful. D.Unconcerned.

3.What made Dickens’ novels popular?

A.Their highlights of the public life in the Victorian era.

B.Their vivid characters and focus on social inequalities.

C.Their presentation of Dickens’ love for his journalism.

D.Their description of British economic and political power.

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He has got up at 5:30 a.m. to head to the outdoor court and play basketball since he was 9 years old. Zion's hard work began to pay off when he entered high school, where he became a YouTube hit for his high-flying dunks (灌篮)and powerful moves. But Sampson wanted her son to not only work hard at being great but study how the legends of the game went about their skills.

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D.He coached his mother in basketball leagues.

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B.He would stand beside his mother firmly.

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D.He followed her wherever his mother went.

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B.To explain why Zion likes playing basketball.

C.To prove Zion has a gift for playing basketball.

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词汇运用

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