1 . Anything made of plastic or metal can be 3D printed nowadays — bicycles, toys, tools... even replacement body parts! But the latest trend in 3D printing may be food. Scientists and chefs are putting their heads together to create printed food.
Several 3D printers designed for food are now on the market. Anything that can be made into a soft wet mixture can be squeezed (挤压) from a tube in a 3D printer. Instead of ink, these printers can use fruits, vegetables, proteins, sweets, and more. This makes for lots of combinations that can be healthy, yummy, and even artistic.
Most 3D printers don’t actually cook the food, at least not yet. Engineers at Columbia University’s Creative Machines Lab invented an oven (烤箱) that cooks 3D-printed pizza with laser beams (激光束). A special computer program controls the lasers, heating each part of the pizza to perfection. Unlike regular ovens, lasers can carefully cook each thin piece of 3D-printed food.
In the future, food can be made with a 3D printer to meet our needs. For example, a hospital could design meals to meet patients’ dietary needs. Vitamins, minerals, and even medicines can be mixed right in. A 3D printer can make food appealing. Foods that someone may not like might be more attractive after 3D printing. Maybe that food you dislike wouldn’t seem so bad if it looked like a castle!
The idea of 3D printed food may seem very modern. In fact, NASA (美国国家航空航天局) has been researching the topic for more than ten years. On a long travel, it’s important to have food that is easy to make, tastes good, and has the nutrients astronauts need to stay healthy. Printing food on demand may soon be into the space!
1. What will be the latest trend in 3D printing?| A．3D printed bicycles. |
| B．3D-printed toys. |
| C．3D-printed food. |
| D．3D-printed body parts. |
| A．It is invented by students at Columbia University. |
| B．It is made from strong laser beams. |
| C．It can make 3D-printed food carefully. |
| D．It can cook each part of 3D printed food perfectly. |
| A．Attractive. |
| B．Fresh. |
| C．Healthy. |
| D．Terrible. |
| A．Anything Can Be 3D Printed |
| B．3D Printing: the Future of Food |
| C．NASA’s New Research |
| D．How to Cook 3D Printed Pizza |
2 . Each year, about 7 million tons of trash (垃圾) is found in the ocean. This trash consists of cigarette ends, medical waste, plastic, mile-long nets, etc... Those items of trash choke (窒息) many species of ocean life so quickly that they eventually become extinct. Ocean pollution harms the earth and animals, and we should stop the problem.
Some other causes of ocean pollution are waste, poisonous chemicals, and the biggest cause is littering (乱丢垃圾). How do these items end up in the ocean? Waste flows through rivers and drains (下水道) directly to the ocean, so ocean pollution continues to step up. The estimated amount of ocean pollution that floated in the sea in 2012 was 288 million tons. This huge number continues to increase by 4% each year. That means 11, 520, 000 tons of trash increase each year. Imagine the future of our ocean. Will there be any room to swim? Also 80% of the ocean is composed of plastic: plastic bottles, plastic bags, and some plastic toys.
How can ocean pollution be solved? Use fabric bags instead of plastic bags. This would reduce the plastic pollution in the ocean. Also for the waste water problem, we could use waste water treatment system. Lastly using renewable energy sources such as wind power or solar power would limit offshore drilling.
If we don’t stop the causes of ocean pollution, water temperatures will continue to rise and ocean life will become endangered. Please be mindful that what we do affects the people around us, the animals around us, and the habitats around us. So will you pay attention to this problem or wait for the next generation to?
1. What leads to the ocean pollution worst?| A．Cigarette ends. | B．Littering. |
| C．Medical waste. | D．Plastic. |
| A．3 | B．4 |
| C．5 | D．6 |
| A．To introduce what’s ocean pollution. |
| B．To make a survey about ocean pollution. |
| C．To make us know more about ocean pollution. |
| D．To call on everyone to fight against ocean pollution. |
| A．The Seriousness of Ocean Pollution |
| B．The Solutions to Ocean Pollution |
| C．The Causes of Ocean Pollution |
| D．The Sorts of Ocean Pollution |
3 . Six months ago, Jack came to China to study. He has heard that Yangzhou is famous for its gardens. And he plans to visit some gardens in July, so he has collected information about them online as follows:
The Slender West Lake, named National AAAAA Tourist Area in 2010, includes the Great Rainbow Bridge, the White Pagoda, Five-pavilion Bridge, the Twenty-four Bridge, the Small Golden Hill and so on. The best time to tour the Slender West Lake is in March. During the visit to the park, the boat travels on the water and visitors travel in the picture. Ticket: Mar.—May. ￥150; Other months ￥90 Time: 8:30—17:00 Bus: No. 4, 5, 6, 17, 61 buses Tel: 0514-87357803; 0514-87370091 |
Ge Garden, one of the four top famous Chinese gardens, got its name from bamboo. The bamboo in the garden forms the green scenery. The centre of the garden is well-known for man-like hills. Four seasons can be experienced here at a time. Ticket: Mar. —May. ￥10; Other months ￥30 Time: Mar. —May. 7:15—18:00; Other months 7:15—17:30 Bus: No. 8, 30, 61 buses Tel: 0514-87935285 |
He Garden, the most famous garden in the late Qing Dynasty, is known for its long double-way corridor (走廊), which is regarded as the earliest footbridge. Ticket: Mar. —May. ￥40; Other months ￥30 Time: 7:30—17:15 Bus: No. 19, 61 buses Tel: 0514-87900345; 0514-87222353 |
1. How much will a ticket cost Jack if he visits the Slender West lake?
| A．30 yuan. | B．40 yuan. |
| C．90 yuan. | D．150 yuan. |
| A．The long corridor. | B．The green bamboo. |
| C．The man-made hills. | D．The boat travelling. |
| A．He can take a No. 19 bus to GeGarden. |
| B．He can visit the Slender West Lake at 8:00. |
| C．He can call 0514-87935285 for further information of HeGarden. |
| D．He can call 0514-87900345 to know more about HeGarden. |
