Are you a forgetful person? You might be able to blame your genes, a new study in the journal Neuroscience Letters suggests.
Researchers from the University of Bonn have identified a variant（变体） on the DRD2 gene that seems to be associated with increased forgetfulness.
Everyone has one of two variants of the DRD2 gene, the difference is just one letter in the genetic code: Some people have the cytosine (C) variant, while others have the thymine (T) variant. The researchers wanted to see how having one variant over another was associated with forgetfulness.
To test this, they analyzed the DRD2 gene of 500 study participants, and also had the participants answer surveys about their forgetfulness (such as how often they misplaced their keys, or forgot names).
Most of the study participants—three quarters of them—had the thymine gene variant, while the other quarter had the cytosine gene variant. Researchers found an association between more forgetfulness problems and having the thymine gene variant of DRD2. Meanwhile, the cytosine gene variant seemed to have a protective effect against forgetfulness.
However, “there are things you can do to compensate for forgetfulness; writing yourself notes or making more of an effort to put your keys down in a specific location—and not just anywhere,” study researcher Dr. Sebastian Markett, of the University of Bonn, said in a statement.
Research has also suggested that some age groups are more forgetful than others. A recent national poll showed that millenials, who were born between the early 1980s and the early 2000s, are actually more likely than seniors to be absent-minded with things like what day of the week it is, where they put their keys and remembering to bring their lunch.
Meanwhile, another study recently published in the journal BMC Psychology showed that men are more likely than women to experience minor memory problems.What do we know about the DRD2?
| A．It has two similar variants. |
| B．Some people don’t have it. |
| C．It’s bad for people’s memory. |
| D．Everyone has one of its variants. |
We can infer from the study that ______.
| A．most people have the C gene variant |
| B．about 75% of the study participants are forgetful |
| C．people with the C gene variant are more forgetful |
| D．the T gene variant helps improve people’s memory |
Paragraph 6 is mainly about ______.
| A．the result of study |
| B．how to avoid the forgetfulness |
| C．why forgetfulness is normal |
| D．the influence of forgetfulness |
Which section of a newspaper is the test most probably taken from?
| A．Health. | B．Nature. |
| C．People. | D．Science |
As more people use smart phones to pay bills and store personal information, strict password security has become more important than ever. A new study shows that free - form gestures – sweeping fingers in shapes across the screen of a smart phone—can be used to unlock phones. These gestures are less likely to be observed and reproduced by others than traditional typed passwords.
“All that it takes to steal a password is a quick eye,” said one of the researchers of the study. “With all the personal information we have on our phones today, improving their security is becoming increasingly necessary.” In developing a secure solution to this problem, the researchers studied the practicality of using free - form gestures. With the ability to create any shape in any size and location on the screen, the gestures were popular as passwords. Since users create them without following a template, the researchers predicted these gestures would allow for greater complexity.
The researchers carried out a create - test - retest experiment where 63 people were asked to create a gesture, recall it, and recall it again 10 days later. The gestures were captured on a recognizer system designed by the team. Using this data, they tested the complexity and accuracy of each gesture using information theory. The result of their analysis is that people are favorable to use free - form gestures as passwords.
To put their analysis into practice, the researchers then had seven students in computer science and engineering, each with considerable experience with touchscreens（触摸屏）, attempt to steal a free - form gesture password by observing a phone user secretly. None of them were able to copy the gestures with enough accuracy. The gestures appear to be extremely powerful against attacks.
Though the testing is in its early stage and widespread adaptation of this technology is not yet clear, the research team plans to continue to analyze the security and management of free – form passwords in the future. They believe this is the first study to explore free - form gestures as passwords. They will soon publish their findings.What can we learn about free - form gestures?
| A．They are improving mobile security in a way. |
| B．Users will have to make use of simple gestures. |
| C．They will never be copied by others. |
| D．Users must move their fingers in fixed shapes. |
The experiment in paragraph 4 is to test _________ of free - form gestures.
| A．template | B．application |
| C．accuracy | D．security |
According to the text, the researchers think that ________.
| A．it is easy to steal any password with a quick eye |
| B．better ways of setting passwords should be developed |
| C．people had better not use smart phones to pay bills |
| D．personal information should not be stored in a phone |
The main purpose of the text is to ________.
| A．advise people to use free - form gestures |
| B．discuss whether smart phones are safe |
| C．talk about the practicality of passwords |
| D．introduce the study of a new password |
2014 saw that the Ebola virus reappeared in Guinea and soon spread into neighbouring Liberia and Sierra Leone, killing over 7,800 people by the new year of 2015. It leads to viral hemorrhagic fever, which is characterized by high fever and internal bleeding etc.
Ebola is named after the Ebola River, where it was first discovered in 1976. There are five different types of the Ebola virus, each named after where they first happened: Sudan, Ivory Coast, Reston, Bundibugyo, and Zaire. The deadliest of the five, Zaire, was responsible for the 2012 out- break, and is believed to be attacking Guinea.
Ebola is naturally found in fruit bats, which pass on the virus to other animals by biting or sucking on their blood. Humans who are suffering from the Ebola infection might have touched the bodily fluids of the infected animals. Once infected, a human becomes a carrier of the deadly virus.
Unfortunately, there are no disease - specific treatments for Ebola. Health - care workers only supply the infected people with physiological saline（生理盐水）to keep them in good condition. Ebola can kill 90% of those infected, especially in underdeveloped societies like those in Africa. Since there have been many cases of nurses catching the disease from patients, they are forced to wear strict protective clothes, and in some cases, not even allowed to get close to the infected. The fact that there is no cure for the Ebola virus is what makes the outbreak a challenging one to control.
What’s worse, since we live in an interconnected world, where the situation in one country can affect us all, the influences of Ebola are huge: damaging trade relations, affecting foreign visitors, and weakening entire countries. It is feared that the disease may spread throughout west African countries. For every country, a strong health system can decrease the risk of health attack and lessen the impact of Ebola.What is the function of the first paragraph in the whole passage?
| A．To arouse the reader’s concern. |
| B．To summarize the whole passage. |
| C．To give a detailed description of Ebola. |
| D．To introduce the theme of the whole passage. |
What can we infer about the Ebola virus?
| A．It has caused a panic in many countries. |
| B．It is the most dangerous virus in the world. |
| C．A strong health system is important to fight against Ebola. |
| D．Anyone who was infected Ebola will die. |
Paragraph 3 mainly tells us _________.
| A．What the Ebola virus is |
| B．How the Ebola virus spreads |
| C．How the Ebola virus is treated |
| D．How the Ebola virus affects the life |
Which of the following is true?
| A．There are no effective drugs to treat Ebola by far. |
| B．Ebola is now very common in Guinea. |
| C．Those with a fever must be infected by Ebola. |
| D．Females are easier to be infected by Ebola. |
Summer Hours
June 15 - September 15
Saturday - Thursday: 8:00 am - 8:00 pm
Friday: 9:00 am - 9:00 pm
Regular Hours
January 1 - June 14 and September 16 - December 31
Saturday - Thursday: 8:00 am - 5:00 pm
Friday: 9:00 am - 9:00 pm
Individual Ticket Prices
| Venues |
Adult（12＋） |
Senior（60＋） |
Child（3 - 11） |
Group（at least 3 persons） |
| Exhibit |
Halls |
Exhibit |
Halls |
Exhibit |
Exhibits:
◆ A Bird’s World
This exhibit includes a sample of every bird found in New England. It provides a lot of information about bird behavior, and New England birdwatchers will also find a useful bird “dictionary”. With this, you can learn how to understand the bird language you hear being chirped just outside your window at home.
◆Butterfly Garden
This garden offers a wonderful chance to get close to all kinds of living butterflies from New England and across the world. You can also look inside the “Emergence Box” to see hanging chrysalids（蝶蛹）change into adult butterflies. If you’re lucky, you might see a new butterfly crawl out of its casing.
◆Discovery Center
Designed for children under 8 and their parents, the Discovery Center offers lots of fun, hands - on activities that are designed to help them discover through playing. A perfect area for early learners, this educational environment emphasizes the use of real objects for exploring natural history, physical science, and technology topics.
◆Take a Closer kook
Explore the world around you using sight, hearing, touch and smell. Test yourself to see what you can discover when you pay attention to your senses, and learn how technology extends them.If you visit the exhibits on a Wednesday in August, you can stay there until ________.
| A．3 pm | B．8 pm | C．9 pm | D．5 pm |
A child at 5 and its parents will have to pay ________.
| A．$60.00 | B．$80.00 |
| C．$20.00 | D．$68.00 |
People, who are interested in the human body, can visit ________.
| A．Take a Closer Look | B．Butterfly Garden |
| C．Discovery Center | D．A Bird’s World |
The passage is an advertisement of _________.
| A．a sight - seeing park | B．a science park |
| C．a training center | D．an art center |
With her pretty face and soulful voice, Zhang Bichen was instantly thought a possible champion when she first set foot on the stage of the TV show The Voice of China.
On Oct 7, 2014, the 25 - year - old girl won the fierce competition and received the title of the “Voice of the Year”. Zhang’s dream of being a singer star came true at last. What impressed people was not only Zhang’s singing skills, but her willingness to make an effort. “I gained the opportunity to sing on The Voice of China,” she said.
In fact, being a singer has always been her dream. She wanted to apply to a college for singing, but her parents insisted that she should have a stable job after graduation because she did very well at academic studies. So Zhang gave in to her parents and learned French at university. However, in the first year of her college, she was discovered by a South Korean company when she entered a singing competition. To pursue her dream, Zhang signed a contract with the company, started her career in South Korea, and became a member of a band.
“My company had rules that did not allow us to use cell phones. During the first few months after I arrived in South Korea, a totally unfamiliar country, I felt terribly homesick. But I could only phone my parents in the restroom when nobody noticed.” said Zhang. “When I did not have much income, I had to eat instant noodles every day for months.”
It was her positive attitude and outgoing character that helped her through. “When I feel down, I tell myself it is not winning or losing that matters. The most important things are standing on the stage and singing for people.” she said.On October 7, 2014, Zhang Bichen ________.
| A．won the championship of The Voice of China |
| B．signed a contract with a big company |
| C．first sot foot on the Chinese stage |
| D．was successful in her study |
The reason why Zhang learned French at university is that _______.
| A．she is good at French |
| B．French is popular in the world |
| C．it is easy for her to find a stable job |
| D．she can realize her dream |
What is the main idea of the last two paragraphs?.
| A．The company in South Korea has strict rules. |
| B．Zhang’s road to success isn’t easy. |
| C．Zhang always lives a simple life in South Korea. |
| D．Zhang has an outgoing character. |
In a world with limited land, water and other natural resources, the harm from the traditional business model is on the rise. Actually, the past decade has seen more and more forests disappearing and the globe becoming increasingly warm. People now realize that this unhealthy situation must be changed, and that we must be able to develop in sustainable ways. That means growth with low carbon or development of sustainable products. In other words, we should keep the healthy while using its supply of natural resources.
Today, sustainable development is a popular trend in many countries. According to a recent study, the global market for low-carbon energy will become three times bigger over the next decade. China, for example, has set its mind on leading that market, hoping to seize chances in the new round of the global energy resolution. It is now trying hard to make full use of wind and solar energy, and is spending a huge amount of money making electric cars and high-speed trains. In addition, we are also seeing great growth in the global markets for sustainable products such as palm oil(棕榈油), which is produced without cutting down valuable rainforest. In recent years the markets for sustainable products have grown more than 50%.
Governments can fully develop the potential of these new markets. First, they can set high targets for reducing carbon emissions(排放) and targets for saving and reusing energy. Besides, stronger arrangement of public resources like forests can also help to speed up the development. Finally, governments can avoid the huge public expenses that are taking us in the wrong direction, and redirecting some of those expenses can accelerate the change from the traditional model to a sustainable one.
The major challenge of this century is to find ways to meet the needs of a growing population within the limits of this single planet. That is no small task, but it offers abundant new chances for sustainable product industries.The traditional business model is harmful because of all the following EXCEPT that .
| A．it makes the world warmer |
| B．it consumes natural resources |
| C．it brings severe damage to future |
| D．it makes growth hard to continue |
What can we infer from Paragraph2?
| A．China lacks wind and solar energy. |
| B．China is the leader of the low-carbon market. |
| C．High-speed trains are a low-carbon development. |
| D．Palm oil is made at the cost of valuable forests. |
To fully develop the low-carbon markets governments can______.
| A．cut public expenses |
| B．forbid carbon emissions |
| C．develop public resources |
| D．encourage energy conservation |
We can learn from the last paragraph that businesses have many chances to _______.
| A．develop sustainable products |
| B．explore new natural resources |
| C．make full use of natural resources |
| D．deal with the major challenge |
What is the main purpose of the passage?
| A．To introduce a new business model |
| B．To compare two business models |
| C．To predict a change of the global markets |
| D．To advocate sustainable development |