Course No. 1406 12 Lectures (30 Minutes/Lecture)
In The Secrets of Mental Math, award-winning Professor Arthur T. Benjamin teaches you the basic knowledge of mental mathematics. This powerful ability to perform mental calculations will give you an edge in business, at school, at work, or anywhere else that you meet with math.
Course No. 7175 12 Lectures (30 Minutes/Lecture)
In Museum Masterpieces: The Louvre, expert art critic and historian Professor Richard Brertell takes you on an unforgettable journey through one of the world's greatest museums. This 12-lecture series explores some of the most beautiful and renowned, examples from the museum's remarkable collection of masterworks.
Course No. 158 12 Lectures (30 Minutes/Lecture)
In My Favorite Universe, world-famous physicist and director of the Hayden Pknetarium Neil dcGrassc Tyson takes you on a spirited and intellectually interesting journey through the universe and all its history, from before the big bang to the most likely ways in which the entire universe might end.
Course No. 6299 12 Lectures (30 Minutes/Lecture)
In The History of the Bible: The Making of the New Testament Canon, New York Times best-selling author and professor Bart D. Ehrman reveals the secret history behind the making of the New Testament, including how and when each book was written and why it was chosen to be included.
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Dreaming of summer picnics filled with family and fun? We've come up with 4 of the top picnic areas across the US.
Cumberland Islands, Georgia
Just a few hours south of Savannah, this national seashore is a picnic paradise. It's an unspoiled place in the Deep South with over 50 miles of hiking trails (小径). Covered in Spanish moss, the trails are lined with trees and since it's still a rural area, the stars line up for a spectacular show at night and create the perfect evening starlit picnic opportunity.
Grant Park, Chicago
If you are looking for delicious food in Chicago, go for a taste of a 20-day, lake-front, foodie festival that happens in October each year. Grab a spot near the fountain to enjoy your picnic, appreciate the city scenery and lake views and relax with family and friends. If you are there on July 4th, be sure to plan the day to include the fireworks display at the Navy Pier.
Cranberry Islands, Maine
Here, you'll enjoy natural picnics with island views. The islands are a delightful group of islands about 20 minutes offshore from Acadia National Park. You can visit the islands by private boat or ferry (渡船) service. Bring a picnic basket along for the ride as it's a romantic picnic area to take your special someone or go for a family outing to visit the islands.
Big Sur, California
The Point Lobos State Reserve is a small gem. Besides the coastal wildlife there are rare plant communities, and unique geological formations. It's good to have a picnic there. We recommend bringing a telescope, because much of the wildlife can be seen only at a distance.
When Randy Heiss went hiking behind his Patagonia, Ariz. farm, the last thing he expected to find was a Christmas list from a little girl across the US-Mexico border. "I found this balloon on my morning walk near Patagonia on Sunday. Attached to it was a piece of paper with the Christmas wishes from a little girl," Heiss wrote on his Facebook page.
When he brought the list home to his wife, who speaks fluent Spanish, they determined that the little girl had asked for Enchantimals toys, clothes, art supplies and various other gifts. That's when Heiss set out to make the little girl's Christmas dreams come true. Heiss said he had attempted to send Christmas letters to Santa Claus via balloon when he was a kid but never received a response.
Heiss sent a Facebook message on Wednesday to XENY, a radio station in Nogales, to see if it could help him track down the girl or her family. He later received a response from the station, which had determined the author of the letter was an 8-year-old girl named Dayami, and the station wanted to set up a meeting between the two on Thursday. "It just changed my entire day," Heiss told the Washington Post. "Instead of going back to my office in Bisbee, I went with my wife to Walmart. "
The couple bought almost everything on Dayami's list. They also brought a few gifts for Dayami's little sister, Ximena. They told the children they were " ayudantes de Santa," or Santa's helpers.
Heiss,60, said the experience was very healing for him and his wife. Nine years ago,the couple's only son died. " Being around children at Christmas time has been absent in our lives," Heiss said. We now have friends for life. For a day, that border fence with its concertina wire melted away.
A dove rested on a telephone wire. Ready for takeoff, it raises its wings, springs into the air and flaps away. This series of actions is so common that you probably do not pay it much attention. But University of Manchester bioinechanical engineer Ben Parslew does. He is trying to design robots that can jump like birds.
Most conventional robots roll around on wheels, limiting mobility. There is a need for more agile robots that "can jump over obstacles in messy environments," Parslew says. To design such a machine, he turned to nature: "Birds are really good jumpers," he notes.
The trouble is, when birds start to take off, they lean so far forward that they should tip over and fall onto their beaks(喙). Yet that does not happen. Parslew and his team used computer modeling to discover how birds avoid this fate. They discovered that birds twist their bodies slightly towards the back while accelerating into a jump. They also have flexible legs and toe joints, which prevent them from taking off briefly and immediately crashing into the ground. The result were published last October in Royal Society Open Science.
Parslew thinks engineers can use this information to design robots that can not only jump well but also launch into flight more. efficiently. University of Southern California biomechanist Michael Habib, who was not involved in the study, says springs and levers(杠杆)enable more rapid acceleration-than wheels do. And many animals are masters of springs and levers.
"If you can understand how that works," Habib adds, "you can build a robot that's good at running around and good at flying, and it will also be good at taking off suddenly in all kinds of conditions and landing on a dime."Parslew is now designing such a robot, as an alternative to wheeled rovers for exploring other planets.
Helpful ways to deal with a know-it-all friend
Sometimes having a friend who thinks she knows everything and always offers her unsolicited(主动提供的) advice can really make one upset. But with some ways to deal with know-it-all, you can easily cope with that friend. Also a know-it-all friend often acts as if she were the best..
Try to understand. There may be a reason why your know-it-all friend does so. Maybe she has low self-esteem(自尊),or she s not happy in her life. .This tip is very important, especially if the know-it-all is your best friend
Give her a little attention, Giving a little attention is one of the best ways to deal with a know-it-all friend. Show some enthusiasm about what the know-it-all says to give her enough attention, . Or this can lead to her giving more unsolicited advice .Often the know-it-all friend can say some not-so-nice things, and these things are usually about you. Instead of thinking that something is not okay with you, never take her comments and advice personally. If you do so. you may really begin to become unnecessarily anxious.
Have a talk with her. If you're sick and tired of all those unsolicited advice, come right out with it. Speak politely and don't insult(辱骂)her. Try to find a good time to talk to her. . Tell your know-it-all friend how it makes you feel and maybe she will respond well
A. Feel free to ignore her all the time.
B. Don't take her comments personally.
C. However, make sure you don't overdo it
D. Try not to go to those places where you think shell be
D. Try not to go to those places where you think shell be
E. If you have such a friend, here are a few tips on coping with her
F. Try to understand her and understand why she acts the way that she does.
G. You need to know what you're going to say and be sure to use only kind words
My cousin is nine years old, a little bit fat and doesn't do really well at school. She is heavily 1, and thus has developed some resistance and 2towards adults, who usually don't put high hopes in her.
Yesterday we went to an art 3together. There were paintings from kids with disabilities. My little girl has a 4eye, for the paintings she liked most were also the best of the show. She voluntarily helped to 5the chairs and table for a sharing session, painted by herself alongside new friends while I attended the sharing, and also 6helped me to get my bag from another room, 7that doesn't happen often at home as she's usually 8to her iPad.
In the afternoon, we went to buy books together. I bought a book written by a mom 9her journey with her autistic( 自闭的) son. On the bus back home, I briefly 10the book to my cousin, and to my surprise she was 11interested. She kept asking me to tell more stories about the boy in the book who 12with small things in life. Even when the subject strayed (偏离) elsewhere, she 13hearing more about this boy. This is the first time I've seen her so interested in 14. Usually when she talks to me she describes events at school and at home without a 15focus. I'm very 16that the life of a 17has found its way into this little girl's heart.
I'm very thankful for the 18of books, for the beauty that my cousin revealed to me, and for the time we had together. I 19that I can keep seeing clearly the wonderful things in her, so that whenever the not-so-kind world puts her 20, I can remind her how truly wonderful she has always been.
Three hundred years ago, the maohou or "hairy monkeys" quickly became much loved by the people in Beijing. How did somebody come up with them?
The story(go) that the shopkeeper of a Chinese medicine shop was often seen shouting at his employees. One evening an apprentice was tidying up the ingredients（原料）(use) to make Chinese medicines in the shop. To pass the time, he found (he) making a little figure out of the feathery flowers and the head and legs of a cicada's (蝉)skin. The apprentice showed it to his colleagues, (joke) that it looked like their bad-tempered boss.
The little creature became such hit that they started making more figures. Thus, Beijing's unbelievable craft of "hairy monkey" making (bear).
Nowadays," hairy monkeys" are the most popular children's gifts on the market in Beijing. Mass-produced toys (most) reduced demand for handmade figures. But that's not to say that the maohou have completely died out. Walk among the (seller) and giant teddy bear stands of today's temple fairs in Beijing, you might still find a few places selling "hairy monkeys". They are without doubt one of the city's most amazing crafts.
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下画一横线，并在该词下面写出修改后的词。
注意：1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者(从第11处起)不计分。
Today was my father's birthday, which was so a big day for me, so I wanted to give him surprise. My father always gave me that I wanted. He was busy but tried her best to do something for me. Actual, he was a great father for me. I told my mother that I wanted to make a dish for my father and she is very happy to teaching me. So when I went home after school, I rushed to the kitchen, prepared for the food. With my mother's help, I was very confident. When my father went home, he was very happy and praised for me a lot. He said this was the biggest presents he had received.
1）表示祝贺;
2）告知可能遇到的挑战并给出建议。
注意： 1）词数100左右；2）可以适当增加细节以使行文连贯。
Dear Tom,
……
Yours,
Li Hua
