Uncover secrets of the world's oldest civilizations and see natural wonders that will take your breath away. Through our tours you'11 encounter wild animals, see unbelievable landmarks and experience the local traditions of native tribes(部落).
From $2599 13 days
Uniting North African culture and French flavor in harmony, Morocco attracts tourists with its old-world traditions and splendid landscapes. Our Morocco tour from the U. S. contains must-see destinations. And, if you like, a noble camel will take you on an unforgettable ride during a full-day Sahara Desert trip. You'll also have time to experience the country's delightful customs.
Deluxe Dubai＆Abu Dhabi
From $2299 9 days
If you appreciate big and striking, consider this Dubai and Abu Dhabi tour package from the U. S. Thanks to enormous wealth due to its oil reserves, the UAE's largest emirate (酋长国) has transformed into an impressive destination you have to see to believe. Dramatic Dubai is developing rapidly too. It's become a truly global, open society where visitors are absorbed in exciting possibilities. Experience all of the must-sees, as your guide provides context, dining ideas and personalized tips on maximizing your free time.
Cape Town & Safari Express
From $1 999 9 days
If South Africa is one of the many destinations on your wish list, our Cape Town and Safari package from New York City is a very smart choice. The tour includes three full days in this port city, where you can book extraordinary optional tours that show south Africa's incredible diversity. Discover the long-lasting legacy(遗产)of Nelson Mandela, explore the scenic Winelands or even go shark cage diving. . if you dare!
Did you know that what you think you like and don't like is often the result of false ________(believe)? As humans, we tend to be ________ (easy) influenced when it comes to liking or disliking something, and we're happy to have our existing opinions ________ (confirm). But once they became fixed, we often lose our ability to be ________ (object) and we don't like to have our ideas challenged. Generally speaking, human beings are not good at taking a balanced view of things. For instance, we unconsciously start to listen for and select information that ________(match) our understanding and turn a blind eye to information that doesn't, ________ (reject) it out of hand. We don't always like to accept new information that doesn't match up with what we already believe. As a result, we often don't even consider the reasons behind ________ opposing point of view. Instead, we look for evidence that confirms________we have already thought, and which conforms to our own point of view. We're more likely________(give) meaning to information that matches those we've already believed. In other words, we are biased (有偏见的)towards certain information. ________ can come as a shock when information we trusted is actually exposed to be untrue.
Hundreds of people die at sea every year due to ship and airplane accidents. Emergency teams have little time to rescue those in the water because the probability of finding a person alive fall dramatically after six hours. Beyond tides and challenging weather conditions, unsteady coastal currents often make search and rescue operations extremely difficult.
New insight into coastal flows gained by an international research team led by George Haller, Professor of Nonlinear Dynamics at ETH Zurich, promises to enhance the search and rescue techniques currently in use. Using tools from dynamical systems theory and ocean data, the team has developed an algorithm (算法) to predict where objects and people floating in water will go. "Our work has a clear potential to save lives," says Mattia Serra, the first author of a study recently published in Nature Communications.
In today's rescue operations at sea, complicated models of ocean dynamics and weather forecasting are used to predict the path of floating objects. For fast-changing coastal waters, however, such predictions are often inaccurate due to uncertain boundaries and missing data. As a result, a search may be launched in the wrong location, causing a loss of precious time.
Haller's research team obtained mathematical results predicting that objects floating on the ocean's surface should gather along a few special curves (曲线) which they call TRansient Attracting Profiles (TRAPs). These curves can't be seen with our eyes but can be tracked from instant ocean surface current data using recent mathematical methods developed by the ETH team. This enables quick and precise planning of search paths that are less sensitive to uncertainties in the time and place of the accident.
In cooperation with a team from MIT, the ETH team tested their new, TRAP-based search algorithm in two separate ocean experiments near Martha's Vineyard, which is on the northeastern coast of the United States. Working from the same real-time data available to the Coast Guard, the team successfully identified TRAPs in the region in real time. They found that buoys and manikins (浮标和人体模型) thrown in the water indeed quickly gathered along these emerging curves. "Of several competing approaches tested in this project, this was the only algorithm that consistently found the right location," says Haller.
"Our results are rapidly obtained, easy to interpret and cheap to perform," points out Serra. Haller stresses: "Our hope is that this method will become a standard part of the tool kit of coast guards everywhere. "
iPad vs textbooks
What if you could have your whole backpack at the touch of your fingertips? In the first month of the Apple iPads release, 25million were sold! People all over the world use iPads for all sorts of different things, but one of their finest qualities is the ability to be a textbook. ________ .
To begin with. iPads are less expensive. Textbooks become outdated and schools have to buy new books, but with an iPad schools can update them for free. ________. Schools don't have to spend $500 every year for iPads because they last a while and can be updated.
________. Students usually have multiple classes, which results in multiple textbooks. Heavy backpacks filled with books can cause back problem. A solution to that is an iPad, which only weighs 1. 33 pounds and can hold all of a student's textbooks.
Thirdly, schools should get rid of their textbooks and get iPads because they have more capabilities. Some might think all of the apps are distracting, but the apps actually make iPads more efficient. ________ . Textbooks cannot do those tasks, but iPads can easily do them with just a tap of the fingertip.
Lastly, iPads are a better choice for schools instead of textbooks because these devices allow students to access their learning anywhere at any time. ________ . With iPads, they find it easier to get their homework done.
In conclusion, schools should get rid of their clumsy textbooks and switch to iPads. iPads have allowed this generation to have their entire backpack in the palm of their hands.
A. iPads absorb the need to buy calculators, dictionaries, and other items that are found within the device.
B. Schools have every reason to do away with their school books and switch to iPads.
C. Moreover, in high school, textbooks have an average of 4. 8 pounds each.
D. iPads have already replaced textbooks in over 600 American counties.
E. Therefore, they can use the saved money for other programs.
F. Secondly, iPads cost less and are more popular.
G. iPads are perfect for busy students.
I believe in miracles(奇迹) because I've seen so many of them. One day, a patient was referred to me who was one hundred and two years old. "There's a1in my upper jaw," she said. "I told my own dentist it's nothing, but he 2I come to see you. "
Her eighty-year-old son accompanied her. He would 3 to add something, but she stopped him. She wanted to tell everything herself. I found a large cancer that spread over much of the 4of her mouth. A careful examination later 5 that it was a particularly bad sort of cancer. During her next appointment, I explained to her the 6of the problem. She clasped my hand in hers and said, "I know you're worried about me, but I'm just 7. "
I thought otherwise(不同). After considerable 8 on my part, and kindness on her part because she wanted to 9 me, she agreed to have me refer her to a cancer surgeon. She saw him, but as I expected, 10 treatment. About six months later she returned to my office, still energetic and 11.
"How are you?" I asked.
"I'm just fine, honey," she responded12 high spirits. " When can I get started on fixing my dentures(假牙)?"
Surprised to see her at all, I answered 13, "Let me take a look in your mouth and we'll see about it. "
I couldn't believe my eyes. The cancer that had 14 nearly the entire roof of her mouth was gone-only one small area of redness 15.
I had read of such things happening, but had 16 seen them with my own eyes. That was my first miracle. Since then I've seen many others, because they keep getting 17 to see. In fact, miracles are daily events for me now. And people are a miracle, 18 through them we have a chance to know ourselves and to 19 the miracles of one another.
Since my first miracle, I've come to understand that the place for a miracle is20we choose to find it.
World's loneliest marathon
Many of us know about Russia's Lake Baikal from our textbooks, or by listening to Chinese singer Li Jian's hit song, Lake Baikal. But over the past decade, the world's deepest freshwater lake has been in the spotlight for an extreme sport.
Each March since 2005, about 150 people from around the world sign up for the Baikal Ice Marathon. They come to explore the lake's breathtaking beauty and challenge themselves in unpredictable conditions.
The 26-mile (41. 84-kilometers) journey starts on the lake's eastern shore. In March, the ice is a meter thick and iron-hard. Runners cross this frozen surface, finishing on the western side of the lake.
Known as the "blue eye of Siberia", Lake Baikal has exceptionally clear waters. This means its ice is almost perfectly transparent. "Seen from above, a runner on the ice looks as if he or she is jogging through space," The New York Times noted.
The landscape might be beautiful, but it's also harsh. Strong winds blast across the lake and frostbite can occur within half an hour. Runners say the cold climate is what draws them. They want to test their limits.
"When you are in such an environment, you don't have cars around you, you don't have the noise around. I think these extreme races allow you to be alone with nature," Alicja Barahona, a 64-year-old runner from the US, told ABC News.
The location offers some strange and unique characteristics for this marathon. The finish line is visible from the start, but the endless white offers no progress markers. The race also ends with little fanfare (喧闹). Tourists crowding the ice are mostly addicted to snapping selfies (自拍) and just ignore the runners.
For some runners, the absence of spectators (观众) makes the race more challenging, because it's lonely. They must fight with themselves. "You are alone on Baikal. It is your race. You are alone with yourself. All you need to do is to defeat yourself," Veronique Messina, a French runner, told the Telegraph.
With the Spring Festival come, there will be a long winter holiday. Therefore, I am not going to travel anywhere, because of I don't want to join the crowds. Instead, I just want to stay at home and enjoyed the family time. I am so delightedly that my grandparents will come to stay with us for few days. So my parents decide to having a family hotpot and invite some relatives together. It is so a great reunion that everyone will have much fun. What's more, we will drive to our hometown, what is near the city center. There will be fewer people and we can appreciate the beauty of natures.