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Scientists have uncovered the exact difference between man and mouse. Teams of scientists from around the world will publish today the draft(草图) genome(基因组) of the mouse, which enables them for the first time to compare another mammal’s entire DNA directly with that of a human.
The similarities are far greater than the difference-man and mouse share a comman ancestor that lived more than 70 million years ago-which has allowed scientists to find treatments for a good many human diseases.
British members of the project say the draft mouse genome, published in the journal Nature, has provided the “phrasebook” for scientists to translate the language of the human genome.
“The entire biomedical research community said for the first time fully using this resource to deal with human diseases. They will now have powerful tools that will serve them for many years to come,” said Dr. Jane Rogers, head of sequencing at the Welcome Trust Sanger Institute in Cambridge, which did 20 percent of the work.
Comparisons show almost every gene in the mouse has a corresponding(对应的) gene in humans-a 99 percent similarity that should help to find how each human gene works. Already the work has been able to show that man and mouse each have about 30,000 genes yet only 300 or so are unique to either species, increasing the value of the lab mouse as a “model” for human genetics.
This is an extraordinary milestone. For the first time we have an opportunity to see ourselves in an evolutionary(进化的) mirror. The mouse genome stands for a very important chapter in the lab notebook of evolution. By taking away genes to create sick mice, scientists have been able to reproduce a number disorders. Knowing the entire genomes of humans and mice will enable them to employ the technique more widely leading to a rapid development in the understanding of illnesses.
1.The importance of the discovery lies in the fact that __________.
A.man has finally found his true ancestor
B.it will be easier for people to find the causes of human diseases and cure them
C.it has enabled the scientists to compare human DNA with that of another mammal
D.it makes it possible for man to understand the complicated language of his genome
2.The word “unique” in the fifth paragraph probably means ___________.
A.having no like or equal B.the same
C.corresponding D.excellent
3.It can be inferred that _____________.
A.almost every gene of a mouse works in the same way as that of a human being
B.it has become easier for humans to find their real ancestor
C.more mice will be used in scientific experiments
D.scientists will use fewer mice in their experiments to protect them
4.Which of the following is the best title of the passage?
A.Mouse “Book of Life” May Provide Cures for Human Diseases
B.Mice and Men Are the Same
C.Man and Mouse Share a Common Ancestor
D.The Difference Between Man and Mouse
查看习题详情和答案>>Traditional fairytales(童话) are being given up by parents because they are too scary for their young children, a study found.
Research uncovered that one in five parents has got rid of old literature such as Snow White and the Seven Dwarves and Rapunzel in favor of more modern books.One third of parents said their children have been left in tears after hearing the gruesome details of Little Red Riding Hood.And nearly half of mothers and fathers refuse to read Rumplesliltshin to their kids as the themes of the story are kidnapping and killing.Similarly, Goldilocks and the Three Bears was also a tale likely to be left on the book shelf as parents felt it forgives stealing.
The survey of 2,000 adults was completed to mark the launch of the hit US drama GRIMM ( 格林童话剧) , which starts tonight at 9pm on Watch, and sees six drama series based on traditional fairytales.
The survey found a quarter of parents questioned wouldn’t consider reading fairytales to their kids.And 52 percent of the parents said Cinderella didn’t send a good message to their children as it describes a young woman doing housework all day.
Steve Hornsey, General Manager of Watch, said: "Bedtime stories are supposed to calm children down and send them off to sleep soundly.But as we see in GMMM, fairytales can be dark and dramatic so it’s understandable that parents worry about reading them to young children.As adults we can see the innocence in fairytales, but a five - year - old child could take them too literally.Despite the dark nature of classic fairytales as we see in GRIMM, good will defeat evil and there is always a moral to the story."
The study also found two thirds of mums and dads try to avoid stories which might give their children nightmares.The most popular book read at bedtime is now 'The Very Hungry Caterpillar' by Eric Carle.
However half of parents said traditional tales are "more likely to have a strong moral message than a lot of modern kids' books, such as The Gruffato, The Hungary Caterpillar and the Mr. Men books.
【小题1】Classical works for children are being avoided by parents they think .
A.they contain unmoral themes |
B.they are terrifying |
C.they encourage stealing, kidnapping and killing |
D.they are tired of answering questions |
A.Very horrible | B.Very amusing |
C.Very disappointing | D.Very amazing |
A.Snow White and the Seven Dwarves and Cinderella |
B.The Very Hungry Caterpillar and Little Red Riding Hood. |
C.The Very Hungry Caterpillar andMr. Men |
D.Goldilocks and the Three Bears and Cinderella |
A.think it is different from the reality |
B.dislike it because it is scary |
C.believe exactly what the tale says |
D.feel there is a moral to the story |
Traditional fairytales(童话) are being given up by parents because they are too scary for their young children, a study found.
Research uncovered that one in five parents has got rid of old literature such as Snow White and the Seven Dwarves and Rapunzel in favor of more modern books.
One third of parents said their children have been left in tears after hearing the gruesome details of Little Red Riding Hood.
And nearly half of mothers and fathers refuse to read Rumplesliltshin to their kids as the themes of the story are kidnapping and killing.
Similarly, Goldilocks and the Three Bears was also a tale likely to be left on the book shelf as parents felt it forgives stealing.
The survey of 2,000 adults was completed to mark the launch of the hit US drama GRIMM ( 格林童话剧) , which starts tonight at 9pm on Watch, and sees six drama series based on traditional fairytales.
The survey found a quarter of parents questioned wouldn’t consider reading fairytales to their kids.
And 52 percent of the parents said Cinderella didn’t send a good message to their children as it describes a young woman doing housework all day.
Steve Hornsey, General Manager of Watch, said: "Bedtime stories are supposed to calm children down and send them off to sleep soundly.But as we see in GMMM, fairytales can be dark and dramatic so it’s understandable that parents worry about reading them to young children.As adults we can see the innocence in fairytales, but a five - year - old child could take them too literally.Despite the dark nature of classic fairytales as we see in GRIMM, good will defeat evil and there is always a moral to the story."
The study also found two thirds of mums and dads try to avoid stories which might give their children nightmares.The most popular book read at bedtime is now 'The Very Hungry Caterpillar' by Eric Carle.
However half of parents said traditional tales are "more likely to have a strong moral message than a lot of modern kids' books, such as The Gruffato, The Hungary Caterpillar and the Mr. Men books.
【小题1】Classical works for children are being avoided by parents they think .
A.they contain unmoral themes |
B.they are terrifying |
C.they encourage stealing, kidnapping and killing |
D.they are tired of answering questions |
A.Very horrible | B.Very amusing |
C.Very disappointing | D.Very amazing |
A.Snow White and the Seven Dwarves and Cinderella |
B.The Very Hungry Caterpillar and Little Red Riding Hood. |
C.The Very Hungry Caterpillar andMr. Men |
D.Goldilocks and the Three Bears and Cinderella |
A.think it is different from the reality |
B.dislike it because it is scary |
C.believe exactly what the tale says |
D.feel there is a moral to the story |
Traditional fairytales(童话) are being given up by parents because they are too scary for their young children, a study found.
Research uncovered that one in five parents has got rid of old literature such as Snow White and the Seven Dwarves and Rapunzel in favor of more modern books.
One third of parents said their children have been left in tears after hearing the gruesome details of Little Red Riding Hood.
And nearly half of mothers and fathers refuse to read Rumplesliltshin to their kids as the themes of the story are kidnapping and killing.
Similarly, Goldilocks and the Three Bears was also a tale likely to be left on the book shelf as parents felt it forgives stealing.
The survey of 2,000 adults was completed to mark the launch of the hit US drama GRIMM ( 格林童话剧) , which starts tonight at 9pm on Watch, and sees six drama series based on traditional fairytales.
The survey found a quarter of parents questioned wouldn’t consider reading fairytales to their kids.
And 52 percent of the parents said Cinderella didn’t send a good message to their children as it describes a young woman doing housework all day.
Steve Hornsey, General Manager of Watch, said: "Bedtime stories are supposed to calm children down and send them off to sleep soundly.But as we see in GMMM, fairytales can be dark and dramatic so it’s understandable that parents worry about reading them to young children.As adults we can see the innocence in fairytales, but a five - year - old child could take them too literally.Despite the dark nature of classic fairytales as we see in GRIMM, good will defeat evil and there is always a moral to the story."
The study also found two thirds of mums and dads try to avoid stories which might give their children nightmares.The most popular book read at bedtime is now 'The Very Hungry Caterpillar' by Eric Carle.
However half of parents said traditional tales are "more likely to have a strong moral message than a lot of modern kids' books, such as The Gruffato, The Hungary Caterpillar and the Mr. Men books.
1.Classical works for children are being avoided by parents they think .
A.they contain unmoral themes |
B.they are terrifying |
C.they encourage stealing, kidnapping and killing |
D.they are tired of answering questions |
2.What does the underlined word "gruesome" mean?
A.Very horrible |
B.Very amusing |
C.Very disappointing |
D.Very amazing |
3.Which stories are the popular bedtime stories that parents like to tell their children now?
A.Snow White and the Seven Dwarves and Cinderella |
B.The Very Hungry Caterpillar and Little Red Riding Hood. |
C.The Very Hungry Caterpillar andMr. Men |
D.Goldilocks and the Three Bears and Cinderella |
4.According to Steve Hornsey , adults can see innocence in a fairy tale but a 5-year-old child might ______.
A.think it is different from the reality |
B.dislike it because it is scary |
C.believe exactly what the tale says |
D.feel there is a moral to the story |
查看习题详情和答案>>
Traditional fairytales(童话) are being given up by parents because they are too scary for their young children, a study found.
Research uncovered that one in five parents has got rid of old literature such as Snow White and the Seven Dwarves and Rapunzel in favor of more modern books.One third of parents said their children have been left in tears after hearing the gruesome details of Little Red Riding Hood.And nearly half of mothers and fathers refuse to read Rumplesliltshin to their kids as the themes of the story are kidnapping and killing.Similarly, Goldilocks and the Three Bears was also a tale likely to be left on the book shelf as parents felt it forgives stealing.
The survey of 2,000 adults was completed to mark the launch of the hit US drama GRIMM ( 格林童话剧) , which starts tonight at 9pm on Watch, and sees six drama series based on traditional fairytales.
The survey found a quarter of parents questioned wouldn’t consider reading fairytales to their kids.And 52 percent of the parents said Cinderella didn’t send a good message to their children as it describes a young woman doing housework all day.
Steve Hornsey, General Manager of Watch, said: "Bedtime stories are supposed to calm children down and send them off to sleep soundly.But as we see in GMMM, fairytales can be dark and dramatic so it’s understandable that parents worry about reading them to young children.As adults we can see the innocence in fairytales, but a five - year - old child could take them too literally.Despite the dark nature of classic fairytales as we see in GRIMM, good will defeat evil and there is always a moral to the story."
The study also found two thirds of mums and dads try to avoid stories which might give their children nightmares.The most popular book read at bedtime is now 'The Very Hungry Caterpillar' by Eric Carle.
However half of parents said traditional tales are "more likely to have a strong moral message than a lot of modern kids' books, such as The Gruffato, The Hungary Caterpillar and the Mr. Men books.
1.Classical works for children are being avoided by parents they think .
A.they contain unmoral themes |
B.they are terrifying |
C.they encourage stealing, kidnapping and killing |
D.they are tired of answering questions |
2.What does the underlined word "gruesome" mean?
A.Very horrible |
B.Very amusing |
C.Very disappointing |
D.Very amazing |
3.Which stories are the popular bedtime stories that parents like to tell their children now?
A.Snow White and the Seven Dwarves and Cinderella |
B.The Very Hungry Caterpillar and Little Red Riding Hood. |
C.The Very Hungry Caterpillar andMr. Men |
D.Goldilocks and the Three Bears and Cinderella |
4.According to Steve Hornsey , adults can see innocence in a fairy tale but a 5-year-old child might ______.
A.think it is different from the reality |
B.dislike it because it is scary |
C.believe exactly what the tale says |
D.feel there is a moral to the story |
查看习题详情和答案>>