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科目:高中英語 來源: 題型:
C
The eventual extinction of the large prehistoric animals has always attracted researchers. However,it is impossible to recreate most of them,either because the fossilized(變成化石的) C>NA is too old (dinosaur) or just not available. But the one exception may be the woolly mammoth,which lived about 8,000 years ago.
Thanks to their relatively recent disappearance and the ice-cold weather they lived in,plenty of well-preserved specimens(標(biāo)本) have been discovered. In the last few years,scientists have been able to piece together the mammar's genetic code(遺傳密碼) using some frozen hair and also recreate its blood,with the help of DNA that was found preserved in the bone. Now,a group of Japanese scientists want to take it one step further and bring the mammoth back to life.
The team of scientists plan to start with a journey to Siberia this summer,to seek out the DNA from a flash-frozen specimen of the mammal. In case they are unable to find one,they will use the tissue of a preserved mammoth that currently sits in a Russian laboratory.
The scientists will join the mammoth s DNA with an empty egg of the mammoth's closest present-day relative — the elephant. Then,by using an electric current,they will trick the egg into growing and dividing. After a few days,the researchers will put it inside a female elephant, which will act as a surrogate mother(代孕母親) .
Then begins the waiting game — for it takes about 600 days,for an elephant or in this case a woolly mammoth baby,to fully develop — that is,if everything goes well and the surrogate mother doesn’t reject the egg.
If luckily we do get a baby mammoth,scientists are not sure if they would produce more,but they are hoping they will be able to study it and answer the age-old question of how they became extinct — were they hunted down by humans or did they die because of climate change?
Will the woolly mammoth come back to life? We have to wait and see.
28. The remains of the woolly mammoth are kept well partly due to .
A. their long hair B. their big size
C. the coldness D. human activity
29. Why do the Japanese scientists plan to go to Siberia?
A. To find suitable DNA.
B. To preserve the specimen.
C. To recreate the mammoth's blood.
D. To seek help from the Russian scientists.
30. The fourth paragraph mainly deals with .
A. the future of the cloned mammoth
B. the process of cloning the mammoth
C. the difficulty the scientists are faced with
D. the relation between the mammoth and the elephant
31. If the scientists’ efforts pay off,we are most likely to.
A. clone a lot of mammoths
B. bring dinosaurs back to life
C. know the effects of climate change
D. find out why the mammoth died out
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科目:高中英語 來源: 題型:
閱讀下列短文,從每題所給的四個(gè)選項(xiàng)(A、B、C和D) 中,選出最佳選項(xiàng)。
A
Called “the man who shaped America” and “the father of modem industrial design”, Raymond Loewy must be one of the most influential designers of all time. He revolutionized the industry,working as an adviser for more than 200 companies and creating designs for everything from packaging to refrigerators,from cars to the insides of spaceships.
Loewy's designs all had one thing in common. They were shaped by the MAYA principle — Most Advanced Yet Acceptable. His idea was that people will not accept solutions to design problems if the solutions are too different from current designs.
Loewy started his career in industrial design in 1929 by re-designing a copying machine for the British manufacturer, Sigmund Gestetner. The 28-year-old designer completed the task in three days and the design of the machine lasted for the next 40 years.
The Gestetner copying machine was the beginning of many designs which used streamlining (流線型) . He described this as “beauty through function and simplificationHe spent the next 50 years streamlining everything from postage stamps and company logos (商標(biāo)) to the insides of stores. The famous Greyhound bus and Studebaker car show his use of streamlining in action.
He is perhaps most famous for his re-design of the Lucky Strike packaging. In 1940,the President of the Lucky Strike Manufacturing Company,George Washington Hill,bet Loewy $50,000 that he could not improve the appearance of the green and red Lucky Strike packets. Loewy accepted the challenge. He changed the background of the packet from green to white. Then he put the red lucky strike target on both sides of the packet. This made it more eye-catching and greatly increased sales. It is now recognized as a design classic.
Loewy's logo design aimed at “visual retention(視覺保持)”.He wanted to make sure that anyone who saw the logo,even for a short while,would never forget it. He designed many highly visible logos for famous companies such as Shell Oil,Exxon,Greyhound and Nabisco.
By the mid 20th century,his industrial design firm was so famous that he could say “the average person,leading a normal life ... is bound to be in daily contact with some of the things,services or structures” designed by his firm.
1. Loewy's biggest influence was in.
A. completely changing the design industry
B. successfully shaping Americans' taste
C. changing people's idea about design
D. building a professional design team
2. Loewy's designs were based on the idea of.
A. speeding up the design process
B. providing completely different designs
C. providing most immediately recognizable designs
D. offering original but not revolutionary answers to problems
3. Loewy first used streamlining.
A. in his re-design of the Lucky Strike packaging
B. when he designed a company logo for the Gestetner
C. when he re-designed a copying machine for Gestetner
D. in his design for the Greyhound bus and Studebaker car
4. Loewy's logo designs aimed at .
A. making the companies well known
B. bringing freshness for a short while
C. attracting people to the companies’ history
D. making company symbols very memorable
5. What can we infer from the last paragraph?
A. Loewy provided service to ordinary people.
B. Loewy's designs were famous and influential.
C. Loewy's design firms existed all over the world.
D. Loewy was welcomed and respected by the public.
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科目:高中英語 來源: 題型:
[即學(xué)即練]用含set的短語的正確形式填空。
1. Passengers may be and picked up only at the official stops.
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科目:高中英語 來源: 題型:
2. He (不容易沮喪) .I suppose there's bound to be something unfortunate happening.
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