1 . A warm drink of milk before bed has long been the best choice for those who want a good night’s sleep. But now a study has found it really does help people nod off—if it is milked from a cow at night.
Researchers have discovered that “night milk” contains more melatonin(褪黑激素), which has been proven to help people feel sleepy and reduce anxiety.
The study, by researchers from Seoul, South Korea, involved mice being fed with dried milk powder that made from cows which are milked both during the day and at night.
Those who are given night milk, which contained 10 times the amount of melatonin, were less active and less anxious than those who are fed with the milk which is collected during daytime, according to the study published in The Journal of Medicinal Food.
Night milk quickened the start of sleep and caused the mice to sleep longer.
While the effect of cow milk which is harvested at different time has not been tested on humans up to now, taking melatonin drugs has been suggested to those who are struggling to fall asleep at night.
Previous studies have also indicated that milk can be excellent for helping sleep because of the calcium content, which helps people to relax.
Milk is also sugar-free and additive-free(不含添加剂) with nutritionists recommending skimmed milk as the best choice before bed because it is the least fattening. The more fat you take in before bedtime, the greater burden you will put on your body at night.
1. According to the text,the mice that were fed with daytime milk ________.| A．started sleep more easily | B．woke up later |
| C．were less active | D．were more anxious |
| A．It’s been tested on mice for ten times. | B．It’s used in sleeping drugs. |
| C．It exists in milk in great amount. | D．It can make people more energetic. |
| A．Because it contains calcium. | B．Because it is the least fattening. |
| C．Because it contains sugar. | D．Because it is full of fat. |
| A．Milk Drinking and Health | B．Fat, Sugar and Health |
| C．An Experiment on Mice | D．Night Milk and Sleep |
2 . A recent study questions whether placing attention on economic growth is the best way to improve child nutrition in low-and middle-income countries. Subu is a professor at the Harvard School of Public Health in Massachusetts. He says there is a common belief on the best way to improve child health in developing countries. He puts it this way: “Let’s just go after economic growth and then everything else will just follow.” But he says that is not always true.
Take India for example. A common measure of a country’s economic health is GDP (gross domestic product). India’s GDP has been growing by more than five percent a year. That is a higher growth rate than most Western countries. Yet more than two-fifths of India’s children are underweight. And Subu says, the percentage of underweight children has changed little since the early 1990s. He and other researchers asked a question, “Was economic growth failing to benefit children in countries other than India?” They looked at health surveys carried out since 1990 in 36 low-and middle-income countries, mostly South of Africa’s Sahara Desert. The researchers compared the effect of GDP growth and signs of child malnutrition-like physical weakness, slow growth and being underweight. But the researchers found only a small relationship.
The group reported their findings in the Journal Lancet Global Health. Subu says money should be spent on clear water, waste-treatment system and other programs. “Without these directing measures, what we are seeing is that economic growth by itself is not making much difference,” said Subu.
But that is not how Lawrence Haddad sees the case. He is head of the Institute of Development Studies in Britain. Lawrence Haddad says malnutrition has dropped sharply over the past 20 years in countries like Vietnam, Ghana or Brazil. He says economic growth was responsible for half of those declines. “The other half is because of improvements in water, health systems and nutrition programs,” said Haddad.
1. Why does the author take India for example?| A．To stress the importance of GDP. |
| B．To arouse reader’s interest in the topic. |
| C．To prove economic growth can’t improve child nutrition. |
| D．To show India has a higher growth rate than most Western countries. |
| A．Lacking nutrition. | B．Getting nutrition. |
| C．Providing nutrition. | D．Wasting nutrition. |
| A．Two-fifths of India’s children are underweight. |
| B．Economic growth only fails to benefit children in India. |
| C．Lawrence Haddad looked at health surveys carried out since 1990. |
| D．Subu believed economic growth itself could hardly make a difference. |
| A．Supportive. | B．Disapproving. |
| C．Unconcerned. | D．Doubtful. |
3 . You can either travel or read, but either your body or soul must be on the way. The popular saying has inspired many people to read or go sightseeing. Traveling just like reading, is a refreshing journey from the busy world. Books, brain food, can keep you company on your travel.
On the Road, 1957, by Jack Kerouac
The book is a globally popular spiritual guide book about youth. The main character in the book drives across the US continent with several young people and finally reaches Mexico. After the exhausting and exciting trip, the characters in the book begin to realize the meaning of life. The book can be a good partner with you to explore the United States.
Life is Elsewhere, 1975, by Milan Kundera
Jean-Jacques Rousseau once said, “Man is born free, and everywhere he is in chains.” The book tells a young artist’s romantic but miserable life, about how he reads, dreams, and has a relationship. Experience the artist’s passionate life in the book during a trip to Central Europe. The book invites you to deeply reflect on your current life.
The Stories of Sahara, 1967, by Sanmao
The book narrates the author’s simple but adventurous life in the Sahara Desert, which seems a desolate and dull place. The fancy natural scenery and life there, along with the author’s romantic and intensive emotion, will inspire you to explore the mysterious land. Reading the book is like participating in a dialogue with the author, who is sincere and humorous.
Lotus, 2006 by Annbaby
This novel set in Tibet, tells three people’s stories, each with their unique characteristics. It reveals modern people’s emotions and inner life, their confusion about love, and exploration of Buddhism.The book is a good partner to bring you to the sacred land Tibet.
1. Which book is about the exploration of life value through a journey?| A．On the Road. | B．Life is Elsewhere. |
| C．The Stories of Sahara. | D．Lotus. |
| A．Jack Kerouac’s. | B．Sanmao’s. |
| C．Annbaby’s. | D．Milan Kundera’s. |
| A．Lotus is a religious book exploring Tibetan Buddhist culture. |
| B．On the road advises a classic route for driving across the US. |
| C．The stories of Sahara records its authors’ own life in the desert. |
| D．Life is Elsewhere demonstrates Jean-Jacques Rousseau’s own life. |
4 . Google previously announced successful tests of machine learning systems designed to assist doctors. In one case, Google reported AI had examined eye diseases with equal accuracy to doctors. Other tests showed that machine learning can be used to study large amounts of patient data to predict future medical events.
Now the company has published two new studies showing a high level of success in identifying metastatic breast cancer. Metastatic means that cancer has spread from its main area to other parts of the body. Metastatic breast cancer is one of the deadliest, causing about 90 percent of all breast cancer deaths worldwide.
In metastatic breast cancer patients, the cancer often travels to nearby lymph nodes(淋巴结). Usually doctors examine lymph node tissue under a microscope to see whether cancer is present. Google notes that previous studies have shown that up to one-fourth of metastatic lymph node classifications end up being changed after a second examination. In addition, studies show that small metastatic material can be missed up to 67 percent of the time when examinations happen under extreme time restrictions.
Google says it created a mathematical algorithm(算法). The algorithm, called Lymph Node Assistant, is trained to find characteristics of tissue affected by metastatic cancer. When the system examined tissue images(图像), it was able to differentiate between metastatic cancer and non-cancer 99 percent of the time. In addition, the Lymph Node Assistant is highly effective at finding the positions of the cancers. Some of these positions would be too small for doctors themselves to identify. The research also showed that the algorithm method can reduce the usual time needed to examine the disease by about 50 percent.
But Google makes clear the AI-based system is not meant to replace the work of medical professionals. Instead, it is designed to reduce the number of false identifications and help doctors work faster and more effectively.
1. What is the main idea of Paragraph 1?| A．Google became a pioneer in training doctors. |
| B．Machine learning is able to stop future medical events. |
| C．Google developed artificial intelligence to help doctors. |
| D．Artificial intelligence cured eye diseases with equal accuracy to doctors. |
| A．One-fourth of the metastatic breast cancer patients die in the end. |
| B．Metastatic breast cancer is very difficult to identify. |
| C．It results in 90 percent of deaths of all cancers. |
| D．It can be identified after a second examination. |
| A．It can offer effective treatment. |
| B．It can tell the exact positions of cancers |
| C．It costs 99 percent less time than before. |
| D．It improves the accuracy of identifying cancers by 50%. |
| A．False identification of cancers will be avoided. |
| B．More effective prevention of cancers will be found. |
| C．The number of medical professionals will be reduced. |
| D．Doctors can have a faster understanding of patients’ condition. |
5 . Should we allow modern buildings to be built next to older buildings in a historic area of a city? In order to answer this question, we must first examine whether people really want to preserve the historic feel of an area. Not all historical buildings are attractive. However, there may be other reasons—for example, economic (经济的) reasons—why they should be preserved. So, let us assume that historical buildings are both attractive and important to the majority of people. What should we do then if a new building is needed?
In my view, new architectural styles can exist perfectly well alongside an older style. Indeed, there are many examples in my own home town of Tours where modern designs have been placed very successfully next to old buildings. As long as the building in question is pleasing and does not dominate (影响) its surroundings too much, it often improves the attractiveness of the area.
It is true that there are examples of new buildings which have spoilt (破坏) the area they are in, but the same can be said of some old buildings too. Yet people still speak against new buildings in historic areas. I think this is simply because people are naturally conservative(保守的)and do not like change.
Although we have to respect people’s feelings as fellow users of the buildings, I believe that it is the duty of the architect and planner to move things forward . If we always reproduced what was there before, we would all still be living in caves. Thus, I would argue against copying previous architectural styles and choose something fresh and different , even though that might be the more risky choice.
1. What does the author say about historical buildings in the first paragraph?| A．Some of them are not attractive. |
| B．Most of them ate too expensive to preserve. |
| C．They are more pleasing than modern buildings. |
| D．They have nothing to do with the historic feel of an area. |
| A．We should reproduce the same old buildings. |
| B．Buildings should not dominate their surroundings. |
| C．Some old buildings have spoilt the area they are in. |
| D．No one understands why people speak against new buildings. |
| A．destroy old buildings |
| B．put things in a different place |
| C．respect people’s feelings for historical buildings |
| D．choose new architectural styles |
| A．To explain why people dislike change. |
| B．To argue that modern buildings can be built in historic areas. |
| C．To warn that we could end up living in caves. |
| D．To admit how new buildings have ruined their surroundings. |
Oxford Street
London is shoppers’ paradise, and most visitors head for Oxford Street. Halfway along is Sel-fridges, one of the world’s first department stores where the architecture and window dressing impress even before you go in. There are at least four other major stores on this street, plus Europe’s largest music shop. In December the atmosphere is especially festive because of the Christmas lights which are always lighted by a politician, a great sportsman, or a super star.
Kensington High Street
A fashionable area for shopping is Kensington High Street. One of its department stores even has a roof garden—good for relaxing between purchases. There’s also an organic food superstore.
Borough Market
You can’t visit London and not go to a supermarket. One of the oldest and best for food is probably Borough Market on the south bank of the Thames. Get off the underground at London Bridge and wander among fresh fish stalls, bakeries, and fruit and vegetable sellers. You can also buy specialist food to take away, like cheeses, pork pies, mustard and chutney.
More places for bargains
Portobello Road on a Saturday is your best choice for jewelry or collector’s items. It’s a short walk from the subway station at Notting Hill Gate and you never know what you will find. For clothes, Camden Market is the place. It gets a little crowded at the weekends, though. Convent Garden offers great experience for the simple pleasure of looking at jewelry and gifts.
1. Oxford Street becomes special in December for ________.
| A．the wonderful window dressing |
| B．the Europe’s largest music shop |
| C．the lights lit by a famous person |
| D．many bargains to choose from |
| A．Borough Market | B．Camden Market |
| C．Kensington High Street | D．Portobello Road |
| A．A science book. | B．A traveler’s journal. |
| C．A trip guide. | D．A news report. |
