-
The ocean bottom that extends from the shoreline out to an area where there is a marked change in slope to a greater depth is the（）.
A . abyssal plain
B . continental shelf
C . borderland
D . offshore terrace
-
When there is a flame failure in an automatically fired auxiliary boiler, the （）.
A . air supply is shut off
B . fuel supply is shut off
C . water supply is shut off
D . safety valve lift
-
When there is a fire in a large electric motor, normally the very FIRST step is to （）
A . secure the electric supply
B . ventilate area to remove smoke
C . start the fire pump and lead out hose
D . apply foam
-
There is a fire in the crew’s quarters of your vessel. You should（）.
A . ventilate the quarters as much as possible
B . prepare to abandon ship
C . close all ventilation to the quarters if possible
D . attempt to put the fire out yourself before sounding the alarm
-
There is a line in the film the Sound of Music, When the lord closes the door, somewhere he opens a window .
-
4.There is (A) a people (B) in the room But nobody knows ( C) who it is (D).
-
There is a living room, kitchen diner and a _______ in the accommodation in the Hamilton Road.
-
There is a mixture of the tiger and ape in the character of the imperialists. （ ）
-
There is a striking ___between the standards of living in the north of the country and the south.
-
If there is a red sun in the morning, bad weather is on the way.
-
In MLA in-text citation for print sources, there is a comma between the author’s name and the page number.
-
There is a slight difference in meaning between the two words.
-
There is a ________ of impatience in the tone of his voice.
-
A study reveals that the brain areas that respond when fear is learned through personal experience are al-so triggered when we see someone else in distress.
In the study, participants watched a short video of a person conditioned to fear a so-called neutral stimulus-something people normally wouldn't fear--paired with something they find naturally aversive (令人讨厌的), in this case an electrical shock. The person in the video watched colored squares on a computer screen: When a blue square appeared, the person received a mild shock; when a yellow square appeared, there was no shock. The participant in the video responded with distress when the blue square appeared—he would blink hard, tense his cheek muscles and move his hand. "So it's clear that he's uncomfortable, he's in distress," said study team member Andreas Olsson of Columbia University. "And he's already in distress before he receives the shock, you see him anticipate receiving the shock." By contrast the participant in the video appeared relaxed when the yellow square popped up,
Participants were told they would take part in a similar experiment, and when presented with the blue square, they responded with fear, anticipating a shock, though they were never actually shocked. "Just by watching, they learn themselves," Olsson explained.
This second learning was reflected in the brain. In previous classical conditioning experiments where a fear is learned firsthand, a part of the brain called the amygdala (扁桃核) has been shown to be critical to the development and expression of fears. The scientists monitored the brain activity of each participant during the experiment. Imaging showed that the amygdala responded both when the subjects watched the video of someone else receiving shocks and when they were presented with the blue squares themselves.
"We found that the amygdala is involved both when you're watching somebody receiving shocks, and when you're expecting to receive shocks later on yourself," Olsson said. So it seems that similar processes in the brain are triggered both when fears are experienced first-hand and when they are observed in others.
In the real world, the finding could explain why some people are afraid of things despite little contact with them. "You learn by observing other people's emotional expressions, and what we are showing is that that can be as effective as having those direct experiences yourself," Olsson said. "That's probably one of the reasons why a lot people are having phobias (恐怖症) of certain kinds of stimuli, such as snakes and spiders."
What's people's response to a neutral stimulus？
A．Normally they are not scared by it.
B．Usually they are seriously scared by it.
C．They feel ridiculous when seeing it.
D．They often feel uncomfortable at it.
-
There is a chemical cross-linking in the network of thermoplastic rubbers.
-
We have to accept the fact（)there is a shortage of qualified teachers in the countrysi
A．A.that
B．B.because
C．C.which
D．D.since
-
I______if there is a real God in the world.
A．know
B．wonder
C．wander
D．wandering
-
This is a room in Joan's house. There is a bed, a table and some chairs in it. There's a glass and some books on the table. Joan is in the room. Her father and mother are at the school. They all work hard.
What's on the table？
A．A glass.
B．Some books.
C．A glass and some books.
-
His mother always keeps a candle in the house______there is a power cut.
A．in case
B．in the case
C．in the event
D．in event of
-
听力原文：There are two factors which determine an individual's intelligence. The first is the sort of brain he is born with. Human brains differ considerably, me being more capable than others. But no matter how good a brain he has to begin with an individual will have a low order of intelligence unless he has opportunities to learn. So the second factor is what happens to the individual — the sort of environment in which he is.
The importance of environment in determining an individual's intelligence can be demonstrated by the case history of the identical twins, Peter and Mark. Being identical, the twins had identical brains at birth, end their growth processes were the same. When the twins were three months old, their parents died, and they were placed in separate homes. Peter was reared by parents of low intelligence in an isolated community with poor educational opportunities.
Mark, on the other hand, was raised in the home of rich parents who had been to college. He was read to as a child, sent to a good school, and given every opportunity to be stimulated intellectually. This environmental difference continued until the twins were in their late teens, when they were given tests to measure their intelligence. Peter's score was 85, well below the level he might have attained if reared under average conditions. Mark' s score was 125, twenty-five points above the average and fully forty points higher than his identical brother. Given equal opportunities, the twins would have tested at roughly the same level.
(38)
A．Children reared under average conditions possess average intelligence.
B．Lack of opportunity prevents the growth of intelligence.
C．An individual's intelligence is determined chiefly by his environment.
D．Changes of environment produce changes in the brain structure.
-
There is a direct flight at 3:00 or a flight at 7:30 in the morning that____in Los Angeles.
A．stops by
B．stops in
C．stops over
D．stops up
-
There is a limited number of books on this subject in the library.
A．large
B．total
C．small
D．Big
-
In other words, there is a conventional story line in the newsroom culture that provi
In other words, there is a conventional story line in the newsroom culture that provides a backbone and a ready-made narrative structure for otherwise confusing new.
-
The amazing success of humans as a【1】is the result of the evolutionary development of our brains which has led, among other things, to tool-using, tool-making, the【2】to solve problems by logical reasoning, thoughtful cooperation, and language. One of the most striking ways in which chimpanzees biologically【3】humans【4】in structure of their brains. The chimpanzee, with the capacity for【5】reasoning,【6】a type of intelligence more like that of humans than【7】any other mammal living today. The brain of the modern chimpanzee is probably not too dissimilar【8】the brain that so many millions of years ago【9】the behavior. of the first ape man.
For a long time, the fact that prehistoric people made【10】was considered to be one of the major【11】distinguishing them from other creatures.【12】pointed out earlier, I have watched chimpanzees【13】grass stems in order to use them to probe for termites. It is true that the chimpanzee does not【14】tools to "a regular and set pattern" —but then,【15】people, before their development of stone tools, undoubtedly poked around【16】sticks, and straws, at which stage it seems【17】that they made tools to a set pattern either.
It is because of the close【18】in most people's minds of tools with humans【19】special attention has always been focused upon any animal able to use an object as a tool: but it is important to realize that this ability, on its own, does not necessarily indicate any special intelligence in the creature【20】
(1)
A．species
B．specie
C．speciman
D．specimen
