题目内容
As you dash outdoors in the middle of winter, you might make it halfway down the block before realizing that your ears are freezing because you forgot your hat.
Now, scientists have shown that even though you’ve had an apparent memory lapse(丧失), your brain never forgot what you should have done. Ww w.ks 5u.c om
Memory works mainly by association. For example, as you try to remember where you left your keys, you might recall you last had them in the living room, which reminds you that there was an ad for soap on television, which reminds you that you need soap, and so on. And then, as you’re heading out of the door to buy soap, you remember that your keys are on the kitchen counter. Your brain knew where the keys were all along. It just took a round-about way to get there.
Now, scientists at the Salk Institute for Biological Studies are studying associative memory in monkeys to figure out just how this complicated process works.
First, the researchers trained a group of monkeys to remember arbitrary(任意的) pairs of symbols. The researchers showed the monkeys one symbol(cold weather) and then gave them the choice of two other symbols, one of which (a hat) would be associated with the first. A correct choice would earn them a sip of their favorite juice.
Most of the monkeys performed the test perfectly, but one kept making mistakes.
“We wondered what happened in the brain when the monkey made the wrong choice, although it apparently learned the right pairing of symbols,” said study leader Thomas Albright.
Albright and his team observed signals from the nerve cells in the monkey’s inferior temporal cortex (ITC), an area of its brain used for visual pattern recognition and for storing this type of memory.
As the monkey was deciding which symbol to choose, about a quarter of the activity in the ITC was due to the choice behavior. www.ks5u.com
Meanwhile, more than half the activity was in a different group of nerve cells, which scientists believe represent the monkey’s memory of the correct symbol pairing, and surprisingly, these cells continued to fire even when the monkey chose the wrong symbol.
“In this sense, the cells ‘knew’ more than the monkeys let on in their behavior,” Albright said. “Thus, behavior may vary, but knowledge endures.”
57．The example of the keys and soap is given to explain the relationship between __________.
A．memory lapse and human brain B．memory and association
C．memory and television ads D．memory and our daily life
58．Which of the following best expresses the general idea of the text?
A．Your brain may forget something, but not always.
B．Activity is a round-about way to memory.
C．Your brain remembers what you forget.
D．Monkeys have better memory than us.
59．The researchers believe the monkey that made the wrong choice ________.
A．also knew the correct answer
B．had the worst memory
C．failed to see the objects well
D．had some trouble with its nerve system
60．The underlined word “endures” may be best replaced by __________.
A．disappears B．increases C．improves D．remains
BCAD
黄冈海淀全程培优测试卷系列答案
everyone’s wealth appeared to be expanding. Their parents probably saw their home values rise along with their investments. “So you have people who have grown up in an environment where people had great expectations of what living well means,” says Kobliner.
my is spoiling their life plans.
The Oxford Mal, England
Most prisons are the kind of place you’d be desperate to escape from, not somewhere you’d possibly conceive of escaping to.
But this former Oxford prison has been converted into a boutique hotel by the fashionable Malmaison chain and offers the kind of luxurious living that former convicts could only have dreamed of.
Rates: Double room £140 (US$233). Breakfast £12.95 per person
Jules’ Undersea Lodge, United States
Originally a research laboratory, the world’s only underwater hotel sits at the bottom of the Emerald Lagoon in Florida, and can only be reached by scuba diving down six meters.
The lodge can accommodate two couples and is kitted out with showers, a microwave and a fridge.
The real attractions are the fish; the lodge is like a goldfish bowl in reverse, where you sit and watch angelfish, parrotfish, barracuda and snappers peering in at you through the window.
Rates: From US$400
Das Park Hotel, Austria
Stay overnight in a concrete sewer pipe on the banks of the River Danube.
The drainpipes are two meters in diameter and two and a half meters long, with a porthole to look out of, a front door to close and a cozy nest to snuggle into, which includes a low-slung futon, bedside lamp, woolly blanket and light sleeping bag.
Rates: You pay as much, or as little, as you want.
Sant` Angelo Luxury Resort, Italy
“Four-star boutique cave-hotel” is the proud boast of the Sant’Angelo in the city of Matera, which is famous for its sassi-houses dug into the rock. Matera is the only place in the world where people can boast to be still living in the same houses as their ancestors did 9,000 years ago. The rooms have been fashioned from old sassi stables and workshops. There are two restaurants, a bar and an art gallery.
Rates: A three-night package costs from US$560 per person including some meals, a walking tour and car hire, but not flights.
La Balade Des Gnomes, Belgium
A truly out-of-this-world experience, this hotel makes you feel like you’re on the moon.
You can sleep in a moon buggy, bathe in a lunar capsule, and the walls and ceilings are covered in twinkling stars and planets.
Other themed rooms include a newly opened Trojan Horse, a Troll Forest, a South Seas sailing ship and a Wine Room.
Rates: From ?115 (US$170) per double
【小题1】Das Park Hotel is different from the other hotels in that __________.
| A．it is underwater | B．you decide the pay |
| C．it used to be a prison | D．it is not in Europe |
| A．Jules’ Undersea Lodge, United States | B．La Balade Des Gnomes, Belgium |
| C．Das Park Hotel, Austria | D．The Oxford Mal, England |
| A．£165.9 | B．£152.95 | C．£258.9 | D．£305.9 |