【推荐1】For motorcycle enthusiasts, nothing beats the excitement of riding your motorcycle on the open highway with the wind on your back. With gas prices rising, riding motorcycles is economical and a much greener way to travel. Along with the benefits comes the risk of personal injury if an accident occurs. After all, you’re not protected by steel like you are while driving your car. Besides a helmet (头), the latest safety innovations, new airbag jeans, are personal airbags that you can wear to better protect your life.

Airbags have been protecting people in car accidents for decades. Now, a Swedish company, Mo’cycle, teamed up with an airbag technology company which previously produced upper body protection for motorcycle riders, to design and produce the airbags jeans. This kind of airbag can offer protection for the motorcycle rider’s lower body, especially the tailbone, in case of an accident. According to the company, “It reformed the airbag technology to protect the first bone of the spinal column (脊柱), because spinal column injury is the leading cause of disability among motorcycle riders.”

The airbag jeans look like conventional trousers. Its component is removable and the jeans can be washed, dried, and worn again. The jeans are made of a fabric called Armalith which is stronger and weighs less than steel. Armalith helps to prevent riders from injuries caused by force of friction after a fall. The airbags fixed into the fabric help protect the rider if he or she falls off the motorcycle. If the rider is separated from the vehicle, the airbags are touched off in seconds. That’s because the mechanism is actually a chain that connects the jeans to the motorcycle.

Mo’cycle’s airbag jeans are available on the company’s crowdfunding campaign along with an airbag shirt and a complete protection package. Obviously, they can provide protection for more motorcycle riders. Making the roads safer for them is certainly a worthy effort.

1. What is the purpose of Paragraph 1?

A．To show the popularity of motorcycles	B．To stress the necessity of airbags jeans.
C．To state the importance of wearing helmets.	D．To display the excitement of highway riding.

2. What is a feature of airbag jeans?

A．They lead a new fashion trend.	B．They are comfortable to wear.
C．They are quick in response.	D．They need fixing regularly.

3. How does the author feel about the future of the airbag jeans?

A．Indifferent.

B．Uncertain.

C．Promising.

D．Curious.

【推荐3】Who says inventions are only made by grown-ups and professionals? Over the years, children have also succeeded in making their useful contributions to the world. Here are a few inventions that came to life from the minds of young children.

Hero Helmet

Seven-year-old Samuel Meyer’s invention is aimed at stopping people from riding their bikes or skateboards without using a helmet. The Hero Helmet features an inbuilt remote that controls a lock on the wheels which unlocks when the Helmet is being worn by the rider. Samuel says: no helmet, no bike.

Robotic Earthworm

The first thought that comes to mind is, why a robotic earthworm? Well, ten-year-old David Cohen had some useful applications in mind. He believed it could be used to find victims after a flood, earthquake or fire. The robot could get into small and dangerous places where search dogs and humans could not go.

B. E. A. C. O. N.

Fifteen-year-old Hannah Herbst’s invention, which stands for Bringing Electricity Access to Countries through Ocean Energy, was inspired by her pen pal who lives in Ethiopia and did not have access to lights. So she came up with B. E. A. C. O. N, which absorbs energy directly from ocean waves. Her invention won the “Discovery Education 3M Young Scientist Challenge” in 2015 and other numerous awards.

Portable Wheelchair Controller

At only eight years old, Amelia Fox created the invention to help lift people in and out of their wheelchair. This invention was not just born out of the desire to create something. Amelia developed this controller for her brother, who had just got hip surgery and needed the wheelchair to move around.

1. Who is the youngest inventor?

A．Samuel Meyer.	B．David Cohen.
C．Amelia Fox.	D．Hannah Herbst.

2. Which of the following can be used as a rescue tool?

A．Hero Helmet	B．B. E. A. C. O. N.
C．Robotic Earthworm.	D．Portable Wheelchair Controller.

3. Why did Amelia Fox create the invention?

A．To give her brother assistance.	B．To benefit the earthquake victims.
C．To generate electricity effectively.	D．To protect bike riders from injuries.

【推荐1】

Over the years, the term Wall Street has come to represent the world of high finance, but it’s also just a street! And before that, it was actually a wall--hence the name. The wall used to protect New Yorkers from attacks by Native American Indians. But eventually, the English knocked the wall down. There are a number of important landmarks on Wall Street. Here are a few of them.
	TRINITY CHURCH Trinity Church is located at the intersection of Wall Street and Broadway. The original church was destroyed in the Great New York City fire of 1776. The current church was built in 1846. These days, Trinity Church has several choirs, and offers free classical and contemporary music concerts.
	FEDERAL HALL NATIONAL MEMORIAL Federal Hall was built in 1700 as New York’s City Hall. Later, it became the first capitol building of the United States of America. It was the place where George Washington was inaugurated as the first president of the United States in 1789, and it is also where the United States Bill of Rights was drafted. These days, the building is run by the National Park Service as a museum commemorating the historic events.
	THE NEW YORK STOCK EXCHANGE The New York Stock Exchange is a neo-classical building located at 11 Wall Street. It is the world’s largest stock exchange by market capitalization of its listed companies. You can visit the building and watch from the third floor as traders buy and sell shares from companies around the world.
	BANKERS TRUST COMPANY BUILDING At 14 Wall Street you can find the Bankers Trust Company Building. It’s a 227-metre skyscraper that occupies an entire block. The building was originally the headquarters of Bankers Trust. These days, it serves as the American headquarters of Deutsche Bank.

1. How did Wall Street acquire its name?

A．Local New Yorkers named it after a certain man.

B．Some Native American Indians gave it the name.

C．The street got its name due to the original architecture there.

D．The English adopted the name in memory of the original wall.

2. Among the important landmarks, which used to stage certain political events?

A．Trinity Church.

B．Federal Hall National Memorial.

C．The New York Stock Exchange.

D．Bankers Trust Company Building.

【推荐2】There’s a new frontier in 3D printing that’s beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn’t stopping there.

Food production

With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that — it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to “re-create forms and pieces” of food that are “exactly the same,” freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed,rather than farm to table.

Sustainability(可持续性）

The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food printing could probably contribute to the solution. Some experts believe printers could use hydrocolloids (水解胶体) from plentiful renewables like algae(藻类) and grass to replace the familiar ingredients(烹饪原料). 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock "food" that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.

Nutrition

Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, “Food printing could allow consumers to print food with customized nutritional content, like vitamins. So instead of eating a piece of yesterday’s bread from the supermarket, you’d eat something baked just for you on demand.”

Challenges

Despite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste(糊状物) before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

1. What benefit does 3D printing bring to food production?

A．It helps cooks to create new dishes.

B．It saves time and effort in cooking.

C．It improves the cooking conditions.

D．It contributes to restaurant decorations.

2. What can we learn about 3D food printing from Paragraphs 3?

A．It solves food shortages easily.

B．It quickens the transportation of food.

C．It needs no space for the storage of food.

D．It uses renewable materials as sources of food.

3. According to Paragraph 4, 3D-printed food ________.

A．is more available to consumers

B．can meet individual nutritional needs

C．is more tasty than food in supermarkets

D．can keep all the nutrition in raw materials

4. What is the main factor that prevents 3D food printing from spreading widely?

A．The printing process is complicated.

B．3D food printers are too expensive.

C．Food materials have to be dry.

D．Some experts doubt 3D food printing.

【推荐3】Teens who have good, supportive relationships with their teachers enjoy better health as adults, according to a research.

“This research suggests that improving students’ relationships with teachers could have important, positive and long-lasting effects beyond just academic success,” said Jinho Kim, the author of the study. “It could also bring about important health benefits in the long run.”

Previous research has suggested that teens’ social relationships might be linked to health outcomes in adulthood—perhaps because poor relationships can lead to chronic stress which can raise a person’s risk of health problems over the lifespan, according to Kim. However, it is not clear whether the link between teen relationships and lifetime health is certainly cause and effect—it could be that other factors, such as different family backgrounds, might contribute to both relationship problems in adolescence and poor health in adulthood. Also, most research has focused on teens relationships with their peers, rather than on their relationships with teachers.

To explore those questions further, Kim analyzed data on nearly 20,000 participants from the Add Health study, a national study that followed participants for 13 years, from seventh grade into early adulthood. The participants included more than 3, 400 pairs of brothers and sisters. As teens, participants answered questions, like “How often have you had trouble getting along with other students?” “How much do you agree that friends care about you?” “How often have you had trouble getting along with your teachers?” and “How much do you agree that teachers care about you?” As adults, participants were asked about their physical and mental health. Researchers also took measures of physical health, such as blood pressure and BMI (体质指数).

Kim found that, as expected, participants who had reported better relationships with both their peers and teachers in middle school and high school also reported better physical and mental health in their mid-20s. However, when he controlled for family background by looking at pairs of brothers and sisters, only the link between good teacher relationships and adult health remained significant.

The results suggest that teacher relationships are even more important than previously realized and that schools should invest in training teachers on how to build warm and supportive relationships with their students, according to Kim.

1. According to paragraph 3, we can know that ________.

A．teen relationships with teachers were not studied before.

B．family background is the main factor in improving mental health.

C．teen relationship is not the only factor that affects the lifetime health.

D．relationship problems in adolescence can cause poor health in adulthood.

2. What is paragraph 4 mainly about?

A．How the research was done	B．What questions were explored
C．How physical health was measured	D．What kind of participants were studied

3. According to Kim’s findings, we can infer that ________.

A．Good adult health depends on teens’ good teachers.

B．More attention should be paid to the students relationships with teachers.

C．The importance of student-teacher relationships was fully realized before.

D．Participants reported better relationships with their teachers and better health as adults.

4. Where does this text probably come from?

A．A. family survey	B．A medical report
C．A term paper	D．A health magazine