1 . Blind people have long desired for brightness, but scientists don’t have the technology. To bring that one step closer to reality, Zhiyong Fan, a materials scientist of the Hong Kong University of Science and Technology, developed a new artificial eye recently. The device, which is about as sensitive to light and has sharper vision and a faster reaction time than a real eyeball, may outperform human eyes.

The human eye owes its wide field of view and clear eyesight to the retina (视网膜) — an area at the back of the eyeball covered in light-detecting cells. The design for a new artificial eye is based on the structure of the human eye and uses a friendly light-sensitive material. At the back of the eyeball, an artificial retina is lined with Nan scale light sensors (纳米级光感器). Those sensors measure light that passes through the lens (晶状体) at the front of the eye. Wires attached to the back of the retina send signals from those sensors to the processor, similar to the way nerve networks connect the eyeball to the brain.

“In the future, we can use this to replace damaged human eyes,” says the lead designer. In theory, this artificial eye could see more clearly than the human eye, because the artificial retina contains about 460 million light sensors per square centimeter while a real retina has about 10 million light-detecting cells per square centimeter. Besides, the artificial eyeball records changes in lighting faster than human eyes can — within about 30 to 40 milliseconds, rather than 40 to 150 milliseconds. Although its 100-degree field of view isn’t as broad as the150 degrees a human eye can take in, the device can see as well as the human eye in poor light.

Hongrui Jiang, an electrical engineer at the University of Wisconsin, though, thinks engineers need a much more practical and efficient way to produce vast series of tiny wires on the back of the artificial eyeball to give it superhuman sight, which is super hard to achieve.

2 . 语法填空

Some inventions happen in strange ways. The potato chip is one of them.

Moon’s Lake House was     1     restaurant in New York in the 1850s. George Crum was the cook there. Many rich people often came to the restaurant     2     (enjoy) his cooking.

The one thing that really upset Crum was     3     a customer complained about the food and sent it back to the kitchen to be done over. He would often return it overcooked. He was happy to see the customer walk out of the restaurant     4     (angry).

On August 24, 1853, a customer returned his fried potatoes to the kitchen,     5     they weren’t crunchy (脆的) enough. Crum reacted in his     6     (usually) way. He cut the potatoes very thin and cooked them in hot oil. They were so crunchy and Crum was sure that the man would refuse     7     (eat) them. Instead, the man loved them. He even asked for more.

Now, do you know     8     invented the potato chip? It’s George Crum! He     9     (late) set up his own restaurant. He named it Crum’s House. He put baskets of his potato chips on all the tables. They made his restaurant a very popular place.

Today, potato chips are one of Americans’     10     (favor) foods!

6 . We have a variety of student organizations focused on everything from politics and photography to dance and debate. Whatever your interests, you can explore them at Harvard. These are just four of the total 451 organizations.

Chinese Cultural Card Games Club

The Chinese Cultural Card (games) Club-known as CCCC-serves as a fun way for students to gain an appreciation of Chinese culture as well as improve their analytical thinking, memory, and concentration through Chinese card games. We play Tractor and Guan Dan at weekly meetings. All are welcome to come, including friends not related to Harvard!

E: jxie@college.harvard.edu

Active Minds Student Chapter at CAMHS

Active Minds Student Chapter at CAMHS are student leaders in promoting a supportive student community at Harvard. We work to encourage open conversation about matters of mental health and educate students to deal with resources on campus.

E: harvardactiveminds@gmail.com

Fall Clean-Up

Fall Clean-up is designed to provide new students with extra support and resources to make it easy to get used to college life by connecting first-year students with peer leaders, schoolmates, and helpful.

Harvard resources.

E: fcu@fas.harvard.edu

Accessible Education Office (AEO)

The Accessible Education Office (AEO) partners with FAS students with disabilities to recognize difficulties and carry out plans for access. Through cooperation with the campus community, we raise an environment of fairness and a sense of belonging.

E: aeo@fas.harvard.edu

7 . A man named Randy liked to look for big trees and old trees. He made maps to show where these trees were. He did not want to cut them down. He wanted people to take care of them.

Randy was told that there was a very tall tree on Vancouver Island. The tree was said to be 314 feet tall. That would make it the tallest tree in Canada. Randy started to find the tree.

But someone else found it first. It was found by a logger (伐木工). Loggers wanted to cut down Canada’s tallest tree and all the trees around it.

Randy made a path in the forest so people could see the tallest tree. The tree was so big and beautiful that it would bring them enjoyment. More and more people wanted to save that forest. Thanks to these people, that forest is now a park. Canada’s tallest tree is still there.

8 . Peter is a high school student and he lives in Suzhou. His family often take a trip to cities, such as Nanjing and Hangzhou. But Peter always hoped to visit Shanghai. This year, his dream finally came true.

On June 22nd, Peter’s family took the train to get to Shanghai. Their first destination was Zhujiajiao Ancient Town. After arriving there, they tasted many delicious foods first. Then they watched Kunqu Opera performances and hanfu shows.

On the second day, Peter’s family went to Shanghai Haichang Ocean Park. They not only watched many animals, but also joined in some traditional activities about the Dragon Boat Festival. For example, they made zongzi and joined in a boat race. Peter also played an ancient game — touhu. This was the first time he had tried the game. It was so interesting. They also went to At Life Hub@ Anting Square.

On the last day, Peter’s family enjoyed the old Shanghai songs and guofeng music at the concerts. They also went to Jiabei Country Park. They had fun at a music festival and took many photos at a Chinese art show.

“The three-day vacation was a great experience for me,” Peter said, “I learned a lot about Chinese traditional art and history.”

9 . Clubs for High School

Asian Culture Club with Ms. Huang: Tuesdays 4pm. —5pm.

From Peking Opera to K-pop, from dumplings to sushi, Asian Culture Club provides bridge between different cultures. It is a club for students to have the opportunity to gain knowledge about Asian cultures and to come together to build relationships with fellow students from different cultural backgrounds.

Creative Writing Club with Candlin: Fridays 11:55am -12:35pm

If you want to do some free writing and share with other writers, come to this club. Together we’ll spend time writing side by side 9 voluntarily sharing what we come up with, and offering one another warm feedback on our work.

Yoga Club with Ms. Vilchez-Blatt: Mondays 3:30 pm-4:20pm.

Stretch, strengthen and move your body with a challenging combination of Yoga and Fitness! You’ll also learn tools for managing stress and easing anxiety, for overall focus, for self-care and self-love. This club is also great to support students in their other sports and activities.