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The dolphin leapt up into the air because Sagan was too near the water.
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更多“The dolphin leapt up into the air because Sagan was too near the water.”相关的问题
第1题
The dolphin leapt up into the air because Sagan was too near the water.
A．Right
B．Wrong
C．Not mentioned
第2题
The dolphin leapt up into the air because Sagan was too near the water.
A．Right
B．Wrong
C．Not mentioned
第3题
The dolphin leapt up into the air because Sagan was too near the water.
A．Right
B．Wrong
C．Not mentioned
第4题
Remember when your mom used to cut up your food？ Circe, a show dolphin, won't eat fish unless someone cuts the fins (鱼鳍) off. Diana Reiss, a scientist who worked with Circe, knew that. But one day she forgot.
Reiss was training Circe to "stay at station" in front of her. Every time the dolphin swam off, Reiss gave her a time-out by backing away from the side of the pool and standing at a distance. When Circe stayed, Reiss fed her a piece of fish. But then she gave her a piece with fins by mistake.
Circe looked at Reiss, spat(吐) out the fish, and swam across the pool. She took an upright position in the water and simple "stood" there. Circe was communicating (交流) loud and clear. "I felt as if I had gotten the time-out! " says Reiss.
Another dolphin, Pete, enjoyed his meals of fish served up by his trainer. But a wild bird started to show up at every feeding to steal some of the dolphin's supper. Pete was definitely not happy about that.
One day when Pete's trainer gave him frozen fish, Pete let them sink to the bottom of his pool. Between shows he dived down and pushed eight fish up to the surface, and managed to keep all of them afloat. For five minutes, the bird watched anxiously. Finally, the bird took the bait. When it did, Pete caught the bird's feet and pulled it underwater! Then took care of that little thief.
Reiss would feed Circe a fish ______.
A．before Circe gave a performance
B．when Circe followed the instruction
C．the moment Circe swam close to Reiss
D．each time Reiss left the side of the pool
第5题
D
Dolphins are interesting animals. Working with them is fun, because you never know what they will come up with to surprise you.
Remember when your mom used to cut up your food？ Circe, a show dolphin, won' t eat fish unless someone cuts the fins(鱼鳍) off. Diana Reiss, a scientist who worked with Circe, knew that. But one day she forgot.
Reiss was training Circe to " stay at station" in front of her. Every time the dolphin swam off, Reiss gave her a time-out by backing away from the side of the pool and standing at a distance. When Circe stayed, Reiss fed her a piece of fish. But then she gave her a piece with fins by mis-take.
Circe looked at Reiss, spat(吐) out the fish, and swam across the pool. She took an upright position in the water and simply " stood" there. Circe was communicating(交流) loud and clear. "I felt as if I had gotten the time-out ! " says Reiss.
Another dolphin, Pete, enjoyed his meals of fish served up by his trainer. But a wild bird star- ted to show up at every feeding to steal some of the dolphin' s supper. Pete was definitely not hap-py about that.
One day when Pete' s trainer gave him frozen fish, Pete let them sink to the bottom of his pool. Between shows he dived down and pushed eight fish up to the surface, and managed to keep all of them afloat. For five minutes, the bird watched anxiously. Finally, the bird took the bait. When it did, Pete caught the bird' s feet and pulled it underwaterl Then took care of that little thief.
69. Reiss would feed Circe a fish _________.
[ A] before Circe gave a performance
[ B ] when Circe followed the instruction
[C] the moment Circe swam close to Reiss
[D] each time Reiss left the side of the pool
第6题
High Dive
kilometers up into the atmosphere.(1). No one has ever leapt from such a height or gone supersonic without an airplane or a spacecraft. Yet Stems, an airline pilot, is not the only person who wants to be the first to accomplish those feats. Two other. have people an Australian man and a Frenchman, are also planning to make similar leaps.
(1). First, she'll climb into a cabin hanging from a balloon the size of a football field. Then the balloon will take her high into the's trato sphere -- the layer of Earth's atmosphere 12 to 50 kilometers above the planet. "The ascent will take two and a half to three hours." said Stems.”Tll be wearing a pressurized, temperature-controlled space suit.”
At 40 kilometers, Stems will be able to see the gentle curve of Earth and the blackness of space over head. Then she'll unclip herself from the cabin and dive headfirst, like a bullet, into the atmosphere.(3) For high dive, astronaut escape suits are a key to success. Current pilot and astronaut escape suits are guaranteed only a maximum altitude of 21 kilometers. Del Rosso, a NASA engineer of spacesuits and life — support systems, said the suit designed for Stem's jump could serve as a model for the lethal environment of higher climbs.(4)
The first hazard is oxygen-deficient air. Any person without an additional oxygen supply at 40 kilometers would die within three to five seconds. The second hazard is low atmospheric pressure. Atmospheric pressure is much lower at high altitudes than it is at sea level. The low atmospheric pressure of the upper stratosphere causes the gases in body fluids to fizz out of solution like soda bubbles.(5)Other hazards include temperatures as low as 55 degrees Celsius, flying debris, and solar radiation.
For Stems to survive, her spacesuit will have to protect her from all of these hazards. "A spacesuit is like a one-person spaceship," Del Rosso explained. "You have to take everything you need in a package that's light enough, mobile enough, and tough enough to do the job. You can't exist without it."
feat n. 技艺的表演
stratosphere n. 同温层
pressurize v. 加压，增压
lethal adj. 致死的
fizz v. 嘶嘶响
debris n. 碎片
A. It will handle several major hazards.
B. Escape suits are tough enough to stand the atmospheric pressure of the upper stratosphere.
C. From there, she'll take a death-defying leap back to Earth at supersonic speed.
D. "In 30 seconds, I'll be going Mach speed," said Stems.
E. How will Stems make her giant jump？
F. In short, blood boils.
第8题
Irish Dolphins May Have a Unique Dialect
Irish scientists monitoring dolphins living in a river estuary in the southwest of the country believe they may have developed a unique dialect to communicate with each other.
The Channel Dolphin and Wildlife Foundation (SDWF) has been studying a group of up to 120 bottle-nose dolphins in the River Shannon using vocalisations collected on a computer in a cow shed near the River Shannon.
As part of a research project, student Ronan Hickey digitised and analysed a total of 1,882 whistles from the Irish dolphins and those from the Welsh dolphins on a computer and separated them into six fundamental whistle types and 32 different categories. Of the categories, he found most were used by both sets of dolphins—but eight were only heard from the Irish dolphins.
"We are building up a catalogue of the different whistle types they use and trying to associate them with behaviour like foraging, resting, socialising and the communications of groups with calves," project leader Simon Berrow said. "Essentially we are building up what is like a dictionary of words they use or sounds they make. "
Berrow, a marine biologist, said the dolphins' clicks are used to find their way around and locate prey. The whistles are communications. "They do a whole range of other sounds like barks, groans and a kind of gunshot. " He said. "The gunshot is an intense pulse of sound. Sperm whales use it to stun their prey. "
"When I first heard it I was surprised as I thought sperm whales were the only species who used it. We can speculate the dolphins are using it for the same reason as the sperm whales. " Berrow said.
References in local legend indicate there have been dolphins in the Shannon estuary for generations and they may even have been resident there as far back as the 6th century.
They are regularly seen by passengers on the Shannon ferry and an estimated 25,000 tourists every year take special sightseeing tours on local boats to visit them.
The difference in eating habits between the bottle-nose dolphins and the sperm whales interested the SDWF scientists.
A．Right
B．Wrong
C．Not mentioned
第9题
A.comb
B.dumb
C.numerous
D.overcome
