1 . Taste memory is a kind of interesting memory. It is not only the memory of the smell itself, but also the associative memory of the things related to the smell and the emotional memory related to the judgment of the likes and dislikes of the smell. In short, when we smell a familiar smell, our first reaction is to search for the possible source of the smell in our memory - a certain kind of food? Some kind of perfume? Someone? Some place? Even if we smell a strange smell, we will subconsciously look for the smell similar to the smell in our memory.
The particularity of taste is also closely related to our survival instinct - because taste is often associated with food. It is an important survival skill to judge the food's edibility by smell. I have been experimenting with taste aversion(厌恶) memory for a period of time - a taste that has never been encountered and cannot be identified as safe. If there are adverse physiological reactions after eating, I will instinctively avoid this taste the next time I encounter it. This kind of phenomenon will be restrained to a certain extent when it comes to the familiar taste of safety, which is called "potential inhibition", that is, the degree of aversion will be reduced. However, if a person is familiar with the safe taste and has a very serious reaction, this taste will be associated with painful memory, then even if he knows that the taste is safe, he will also involuntarily avoid the food or affect his appetite. This fully shows that taste is not a single memory, but mixed with a large number of other memories.
"People's memory of smell will never be forgotten" - I don't know the origin of this proposition, and it's also too absolute to say that it will never be forgotten - in fact, many diseases lead to people's inability to smell smell, let alone their memory of smell. However, due to the particularity of taste, different taste can not only cause active memory, but also cause a variety of subconscious memory, and also bring a variety of physiological reactions in the body. Therefore, compared with other kinds of memory, it is not easy to forget, which is more reasonable.
1. What can we learn from the first paragraph?| A．Taste memory is a simple memory for the smell itself |
| B．Taste memory is the association and emotional memory related to the smell |
| C．The particularity of taste is closely related to our survival instinct |
| D．We will subconsciously look for similar taste in memory, and it is the same when we feel strange smell |
| A．Taste may be remembered alone |
| B．The potential inhibition occurs in familiar and safe environment |
| C．The safe taste in memory may also have adverse reactions after eating |
| D．The aversion of familiar taste after adverse reaction will be reduced |
| A．in spite of oneself | B．Freewill | C．Autonomous | D．From the heart |
| A．People's perception of smell |
| B．The relationship between smell and people |
| C．Will the memory of smell never be forgotten? |
| D．Research on taste memory |
2 . Great work is work that makes a difference in people’s lives, writes David Sturt, Executive Vice President of the O.C. Tanner Institute, in his book Great Work: How to Make a Difference People Love. Sturt insists, however, that great work is not just for surgeons or special-needs educators or the founders of organizations trying to eliminate poverty in sub-Saharan Africa. The central theme of Great Work, according to Sturt, is that anyone can make a difference in any job. It’s not the nature of the job, but what you do with the job that counts. As proof, Sturt tells the story of a remarkable hospital cleaner named Moses.
In a building filled with doctors and nurses doing great life-saving work, Moses the cleaner makes a difference. Whenever he enters a room, especially a room with a sick child, he engages both patients and parents with his optimism and calm, introducing himself to the child and, Sturt writes, speaking “little comments about light and sunshine and making things clean.” He comments on any progress he sees day by day (“you’re sitting up today, that’s good.”) Moses is no doctor and doesn’t pretend to be, but he has witnessed hundreds of sick children recovering from painful surgery, and parents take comfort from his encouraging words. For Matt and Mindi, whose son McKay was born with only half of a heart, Moses became a close friend. As Sturt explains, “Moses took his innate (与生俱来的) talents (his sensitivity) and his practical wisdom (from years of hospital experience) and combined them into a powerful form of patient and family support that changed the critical-care experience for Mindi, Matt and little McKay.”
How do people like Moses do great work when so many people just work? That was the central question raised by Sturt and his team at the O.C. Tanner Institute, a consulting company specialized in employee recognition and rewards system.
O.C. Tanner launched an exhaustive Great Work study that included surveys to 200 senior executives, a further set of surveys to 1,000 managers and employees working on projects, an in-depth qualitative study of 1.7 million accounts of award-winning work (in the form of nominations (提名) for awards from corporations around the world), and one-on-one interviews with 200 difference makers. The results of the study revealed that those who do great work refuse to be defeated by the constraints of their jobs and are especially able to reframe their jobs: they don’t view their jobs as a list of tasks and responsibilities but see their jobs as opportunities to make a difference. No matter, as Moses so ably exemplifies (例证), what that job may be.
1. According to Sturt, which of the following is TRUE?| A．It’s not the nature of the job, but what you do that makes a difference. |
| B．Anyone in the world is responsible to delete poverty and change the world. |
| C．Anyone can make a difference in people’s lives no matter what kind of job he does. |
| D．Surgeons, special-needs educators and founders of organizations can succeed more easily. |
| A．By keeping optimistic and calm when facing patients and their parents at hospital. |
| B．By showing his special gift and working experience when working at hospital. |
| C．By showing his sympathy and kindness to patients when entering their rooms. |
| D．By pretending to be a doctor or nurse when entering a room with a sick child. |
| A．demands | B．advantages | C．disadvantages | D．limitations |
| A．Great work is work that makes a difference in people’s lives no matter what you do. |
| B．If a boss has trouble recognizing his employees, he can ask O. C. Tanner for advice. |
| C．Moses makes a difference through his sensitivity and his practical wisdom. |
| D．Those who do great work are never defeated by others or their jobs themselves. |
3 . Hardware in general, and smartphones in particular, have become a huge environmental and health problem in the Global South’s landfill sites(垃圾填埋场).
Electronic waste (e-waste) currently takes up 5 percent of all global waste, and it is set to increase rapidly as more of us own more than one smartphone, laptop and power bank. They end up in places like Agbogbloshie on the outskirts of Ghana’s capital, Accra. It is the biggest e-waste dump in the world, where 10,000 informal workers walk through tons of abandoned goods as part of an informal recycling process. They risk their health searching for the precious metals that are found in abandoned smartphones.
But Agbogbloshie legally should not exist. The Basel Convention, a 1989 treaty, aims to prevent developed nations from unauthorized dumping of e-waste in less developed countries. The e-waste industry, however, circumvents regulation by exporting e-waste labelled as “secondhand goods” to poor countries like Ghana, knowing full well that it is heading for a landfill site.
A recent report found Agbogbloshie contained some of the most dangerous chemicals. This is not surprising: smart phones contain chemicals like mercury(水银), lead and even arsenic(砷). Reportedly, one egg from a free-range chicken in Agbogbloshie contained a certain chemical which can cause cancer and damage the immune system at a level that’s about 220 times greater than a limit set by the European Food Safety Authority (EFSA). Most worryingly, these poisonous chemicals are free to pollute the broader soil and water system. This should concern us all, since some of Ghana’s top exports are cocoa and nuts.
Some governments have started to take responsibility for their consumers’ waste. For example, Germany has started a project that includes a sustainable recycling system at Agbogbloshie, along with a health clinic for workers. However, governments cannot solve the problem alone, as there is an almost limitless consumer demand for hardware, especially when governments’ green policies are focused on issues like climate change.
Only the manufacturers can fix this. A more economically sustainable and politically possible solution is through encouraging hardware manufacturers to make the repair, reuse and recycling of hardware profitable, or at least cost-neutral.
1. What can we infer from Paragraph 2?| A．Electronic waste requires more landfill sites. |
| B．Electronic waste is too complex to get fully recycled. |
| C．Electronic products need to be improved immediately. |
| D．Electronic pollution is a burning question in Agbogbloshie. |
| A．Relaxes. | B．Abolishes. | C．Avoids. | D．Tightens. |
| A．The violation of EFSA’s standards. | B．The threat of polluted food worldwide. |
| C．The lack of diversity in Ghana’s exports. | D．The damage to chicken’s immune system. |
| A．Letting governments take on the main responsibility. |
| B．Reducing customers’ demands for electronic products. |
| C．Governments adjusting their green policies about e-waste. |
| D．Manufacturers’ developing a sustainable hardware economy. |
4 . When one looks back upon the fifteen hundred years that are the life span of the English language, he should be able to notice a number of significant truths. The history of our language has always been a history of constant change—at times a slow, almost imperceptible change, at other times a violent collision between two languages. Our language has been a living growing organism, it has never been static. Another significant truth that emerges from such a study is that language at all times has been the possession not of one class or group but of many. At one extreme it has been the property of the common, ignorant folk, who have used it in the daily business of their living, much as they have used their animals or the kitchen pots and pans. At the other extreme it has been the treasure of those who have respected it as an instrument and a sign of civilization, and who have struggled by writing it down to give it some permanence, order, dignity, and if possible, a little beauty.
As we consider our changing language, we should note here two developments that are of special and immediate importance to us. One is that since the time of the Anglo-Saxons there has been an almost complete reversal of the different relationship of words in a sentence. Anglo-Saxon (old English) was a language of many inflections. Modern English has few inflections. We must now depend largely on word order and function words to convey the meanings that the older language did by means of changes in the forms of words. Function words, you should understand, are words such as prepositions, conjunctions, and a few others that are used primarily to show relationships among other words. A few inflections, however, have survived. And when some word inflections come into conflict with word order, there may be trouble for the users of the language, as we shall see later when we turn our attention to such matters as WHO or WHOM and ME or I. The second fact we must consider is that as language itself changes, our attitudes toward language forms change also. The eighteenth century, for example, produced from various sources a tendency to fix the language into patterns not always set in and grew, until at the present time there is a strong tendency to restudy and re-evaluate language practices in terms of the ways in which people speak and write.
1. In contrast to the earlier linguists, modern linguists tend to ________.| A．attempt to continue the standardization of the language |
| B．evaluate language practices in terms of current speech rather than standards or proper patterns |
| C．be more concerned about language than its analysis or history |
| D．be more aware of the rules of the language usage |
| A．Changes in the forms of words. |
| B．Changes in sentence structures. |
| C．Changes in spelling rules. |
| D．Words that have similar meanings. |
| A．It is generally believed that the year 1500 can be set as the beginning of the modern English language. |
| B．Some other languages had great influence on the English language at some stages of its development. |
| C．The English language has been and still in a state of relatively constant change. |
| D．Many classes or groups have contributed to the development of the English language. |
| A．historian | B．philosopher |
| C．anthropologist | D．linguist |
| A．The history of the English language |
| B．Our changing attitude towards the English language |
| C．Our changing language |
| D．Some characteristics of modern English |
5 . Professor Stephen Hawking recently came out with a serious warning for people. While at the Starmus Festival, a festival in Trondheim, Norway, celebrating science and the arts, Hawking warned people that the human race is in serious danger.
Hawking criticized President Donald Trump for denying climate change. Then the physicist warned the audience, “I am not denying the importance of fighting climate change and global warming, unlike Donald Trump, who may just have taken the most serious, and wrong, decision on climate change this world has seen.”
Hawking proposed that the leading countries should send astronauts to the Moon before 2020 to restart a movement of more exploration in space. BBC reported that Hawking suggested that we “build a lunar base in 30 years’ time and send people to Mars by 2025.”
According to BBC, Professor Hawking said, “Spreading out into space will completely change the future of humanity.” He continued, “I hope it would unite competitive nations in a single goal, to face the common challenge for us all.” The physicist shared more ideas to motivate the younger generation to continue exploring space. Hawking stated, “a new and ambitious space program would excite (young people), and stimulate interest in other areas, such as astrophysics and cosmology.”
Hawking also revealed his vision for other forms of energy that could move us to a new planet. He warned the audience, “The Earth is under threat from so many areas that it is difficult for me to be positive.” He continued, “Our natural resources are being drained, at an alarming rate. We have given our planet the disastrous gifts of climate change, rising temperatures, reduction of the polar ice caps, deforestation, and decimation (大量毁灭) of animal species. We can be ignorant, unthinking lot (人).”
The professor warned the audience that doing nothing would lead nowhere. He said, “If we succeed, we will send a probe (航天探测器) to Alpha Centauri within the lifetime of some of you alive today. It is clear we are entering a new space age. We are standing at the threshold (起点) of a new era. Human colonization and moving to other planets is no longer science fiction, and it can be science fact.” Hawking advised the audience to move to other worlds because we are running out of space.
1. According to Hawking, what is the first step for humans to spread out into space?| A．To build a lunar base. |
| B．To send people to Mars. |
| C．To send astronauts to the Moon. |
| D．To change the future of humanity. |
| A．Spreading out into space. |
| B．Facing the common challenge of humans. |
| C．Stimulating young people’s interest in other areas. |
| D．Motivating the younger generation to explore space. |
| A．speeded up | B．stored |
| C．used up | D．explored |
| A．Worried. | B．Confused. |
| C．Positive. | D．Indifferent. |
| A．To warn the audience that humans are in danger. |
| B．To predict what will happen to the earth in future. |
| C．To stress that humans are entering a new space age. |
| D．To encourage the audience to move to other planets. |
| A．the Earth is under threat and the human race is in serious danger |
| B．a new and ambitious space program would excite young people |
| C．astronauts have found a better world in the space than the Earth |
| D．humans have found other forms of energy to move to a new planet |
6 . Dental health: Brush with confidence
Children should be taught to brush their teeth regularly. But the suspicion remains among some People, dentists included, that even so, certain children are doomed to develop dental cavities. The hypothesis behind this fear is that some combinations of genes may give rise to the sorts of oral bacteria which are responsible for cavities. If true, that would be sad for the youngsters concerned.
But a study just published in Cell Host and Microbe, by Andres Gomez and Karen Nelson of the J. Craig Venter Institute, in San Diego, suggests it isn’t true.
The mouth is home to many species of microbes. Most are good. Some, though, are well known to secrete acidic waste products when fed sugar. This acidity weakens teeth, causing them to decay.
To try to find out whether a child’s genes play any role in encouraging such acid-secreting bugs, Dr Gomez and Dr Nelson set up an experiment with twins.
Their“volunteers”were 280 pairs of fraternal twins and 205 pairs of identical twins, all aged between five and 11, who had not taken antibiotics during the previous six months. The children were asked to stop brushing their teeth the evening and the morning before the crucial moment of data collection. This was when the researchers swabbed the children’s gingival sulci(the clefts between teeth and gums, in which bacteria collect)to find out what was there. The children also had their teeth scored by dentists as belonging to one of three categories: having no signs of current or previous dental cavities: having signs of current or previous cavities affecting the enamel(a tooth’s hard, outer layer); or having signs of cavities that penetrated the enamel and allected the underlying dentine as well.
Dr Gomez and Dr Nelson found that, though identical twins shared many groups of bacteria which were not shared by fraternal twins, none of these was a type responsible for cavities. Moreover, similarities in bacterial flora were greatest among five-to seven-year-olds, weaker among seven- to nine-year-olds and weakest among nine-to 11-year-olds. This suggests that any role genes do play in regulating the mouth’s ecology fades with time.
Far from supporting the idea that some children are fated to suffer from cavities no matter how well they brush their teeth, these results make it clear that the power to control the growth of the relevant bacteria is very much within reach of children and their parents. Brushing, however, may not be the only approach. Avoiding sugary foods is obviously de rigueur. It seems likely, though, that which other foods a child eats may help shape his oral ecosystem, too. This is an area of ongoing research. But, as in the intestines(肠道), so in the mouth, scientific medicine is at last coming to grips with the fact that the mixture of microbes present is both important and capable of manipulation, to the benefit of the host.
1. What does“hypothesis”refer to in paragraph 1?| A．Children’s failure to brush their teeth properly leads to tooth decay. |
| B．Some children are programmed to develop tooth decay. |
| C．Youngsters are suspicious of the effectiveness of tooth-brushing. |
| D．Some genes are more likely to lead to dental cavites. |
| A．whether genes have anything to do with dental decay |
| B．which group of twins are more likely to have decayed teeth |
| C．what kinds of foods tend to give rise to tooth decay |
| D．why the ecosystem of the intestines is similar to that of the mouth |
| A．Scientists are not yet sure how ecosystem of the mouth is formed. |
| B．The role genes play in controlling ecosystem of the mouth weakens with the time. |
| C．The children are classified into three groups according to the degrees of dental cavities. |
| D．Identical twins are not as genetically close to each other as fraternal twins. |
| A．The existence of multiple microbes benefits children’s oral ecosystem. |
| B．What a child eats enhances the healthfulness of a child’s oral ecosystem. |
| C．Cutting down on sugar intake is the most likely way to prevent tooth decay. |
| D．Parents are in no position to help their children maintain healthy oral ecosystem. |
7 . As Shanghai prepared to introduce mandatory(强制的) garbage sorting on July 1, games and toys that examined fun ways to spread information about the garbage sorting were to encourage younger people to take action.
A 15-second video of a game went on Chinese social media. In the video, players wearing VR(虚拟) headsets saw four different types of trash can in front of them, and had to throw different types of garbage into the right buckets(桶) to get points. Although it was not the only VR game in the place, visitors lined up around the booth to explore it because of the garbage-sorting theme.
“As a Shanghai, I am in great need of this game. Maybe I won’t need to check how to categorize(分类) each piece of garbage on my phone while going through all my garbage every day if I play this game more often, ” said ZhouZhou, a young Shanghai. But some social media users in Shanghai have complained about the difficulty of sorting different types of garbage.
Wu Xia, founder and CEO of VitrellaCore, the company that created the game, said the idea was to provide an interesting way of learning about garbage sorting. “It’s simple and easy to understand. People can practice sorting garbage without actually going through their trash, and it is a more effective method than using paper materials when training volunteers,” Wu said.
1. What is the purpose of the VR game?| A．Just for fun. |
| B．Teach students to sort garbage. |
| C．Do exercise. |
| D．Keep fit. |
| A．It is too hard to sort garbage. |
| B．There are too many people lining up. |
| C．The VR game should be more interesting. |
| D．There are more ways to use paper materials. |
| A．successful | B．interesting | C．traditional | D．disappointing |
| A．Young people like VR games more. |
| B．Shanghai performs mandatory garbage sorting. |
| C．Games were used to help young people sort garbage. |
| D．Learning by playing VR games is practical for the young. |
8 . If you wear glasses, chances are you are smarter. Research published in the famous British journal Nature Communications has found that people who displayed higher levels of intelligence were almost 30 percent more likely to wear glasses.
The scientists studied the genes of thousands of people between the ages of 16 and 102.The study showed intelligence can be connected to physical characteristics. One characteristic was eyesight. In out of 10 people who were more intelligent, there was a higher chance they needed glasses. Scientists also said being smarter has other benefits. It is connected to better health.
It is important to remember these are connections which are not proven causes. Scientists call this correlation. Just because something is connected to something else does not mean one of those things caused the other. And it’s worth noting that what constitutes intelligence is subjective and can be difficult, if not impossible, to measure.
Forget genes though. Plenty of proof shows wearing glasses makes people think you are more intelligent, even if you do not need glasses. A number of studies have found people who wear glasses are seen as smarter, hard-working and honest. Many lawyers use this idea to help win their cases. Lawyer Harvey Solves explained this. Glasses soften their appearance. He said Sometimes there has been a huge amount of proof showing that people he was defending broke the law. He had them wear glasses and they weren’t found guilty.
Glasses are also used to show someone is intelligent in movies and on TV. Ideas about people who wear glasses have begun to shift. People who do not need glasses sometimes wear them for fashion only. They want to look worldly or cool. But not everyone is impressed by this idea, though. GQ magazine said people who wear glasses for fashion are trying too hard to look smart and hip (时髦的). However, that hasn’t stopped many celebrities from happily wearing glasses even if they do not need them. Justin Bieber is just one high-profile fan of fashion glasses.
1. What does the new study show?| A．People wearing glasses are smarter. |
| B．People wearing glasses are healthier. |
| C．Wearing glasses can make people cleverer. |
| D．Wearing glasses is associated with higher IQ. |
| A．Shift. | B．Link. | C．Proof. | D．Consequence. |
| A．Because it can create a moral image. |
| B．Because it can mislead the witnesses. |
| C．Because it can highlight clients’ qualities. |
| D．Because it can prove the clients’ innocence. |
| A．Positive. | B．Negative. | C．Mixed | D．Indifferent. |
9 . In 2015, a man named Nigel Richards memorized 386, 000 words in the entire French Scrabble Dictionary in just nine weeks. However, he does not speak French. Richards’ impressive feat is a useful example to show how artificial intelligence works — real AI. Both of Richard and AI take in massive amounts of data to achieve goals with unlimited memory and superman accuracy in a certain field.
The potential applications for AI are extremely exciting. Because AI can outperform humans at routine tasks — provided the task is in one field with a lot of data — it is technically capable of replacing hundreds of millions of white and blue collar jobs in the next 15 years or so.
But not every job will be replaced by AI. In fact, four types of jobs are not at risk at all. First, there are creative jobs. AI needs to be given a goal to optimize. It cannot invent, like scientists, novelists and artists can. Second, the complex, strategic jobs — executives, diplomats, economists — go well beyond the AI limitation of single-field and Big Data. Then there are the as-yet-unknown jobs that will be created by AI.
Are you worried that these three types of jobs won’t employ as many people as AI will replace? Not to worry, as the fourth type is much larger: jobs where emotions are needed, such as teachers, nannies and doctors. These jobs require compassion, trust and sympathy — which AI does not have. And even if AI tried to fake it, nobody would want a robot telling them they have cancer, or a robot to babysit their children.
So there will still be jobs in the age of AI. The key then must be retraining the workforce so people can do them. This must be the responsibility not just of the government, which can provide funds, but also of corporations and those who benefit most.
1. What is the main purpose of paragraph 1?| A．To introduce the topic. |
| B．To mention Nigel’s feat. |
| C．To stress the importance of good memory. |
| D．To suggest humans go beyond AI in memory. |
| A．Be superior to | B．Be equal to |
| C．Be similar to | D．Be related to |
| A．The writer. | B．The shop assistant. |
| C．The babysitter. | D．The psychologist. |
| A．Limit the application of AI to a certain degree. |
| B．Get more support from the government. |
| C．Apply for the donation from companies. |
| D．Upgrade themselves all the time. |
