Fascinated with images from the Mars Rover? It turns out you don't have to go to space. The following spots may look like they are on another planet, but they are right here on earth.

    * Socotra Island, Indian Ocean

    The largest of the four-island Socotra Archipelago, the island has about 250 species of plants that are not found anywhere else in the world. This includes the canopy-topped dragon's blood tree, which has blood-red resin(树脂）that runs down if the trunk is cut deep. It can grow to 10 feet with a bulbous(球根的）trunk that swells with water absorbed in case of dry weather.

    See it for yourself: There are regular flights from the Yemen capital of Sanaa on(Felix Airways) ($ 180 each way)

    * Vermilion Cliffs National Monument, Arizona

    This wilderness in Northern Arizona/southern Utah is home to some of the most striking landscapes in the American Southwest. The nearly 300,000-acre site is known for its abundance of colorful shale（页岩）and Navajo sandstone that has been eroded(侵蚀）by the elements to create cliffs that rise as high as 3,000 feet. In the northwest of the park is the Coyote Buttes, where you'll find The Wave, a wall of red sandstone that twists and turns in a way that just doesn't look natural —but is.

    See it for yourself: Permits are required to hike in Vermilion Cliffs. Paria Canyon and Buckskin Gulch permits are available at on-site pay stations or in advance ($5 per person).

    *Perito Moreno Glacier, Argentina

    The huge size of the Perito Moreno Glacier is unbelievable— it is more than 50 miles in length and 500 feet deep. The terminus(终点）of the glacier is Lago Argetino, where a 50-foot blue-hued ice wall rises from the lake. The Perito Moreno is also one of the only glaciers left on earth that is still growing.

    See it for yourself: Many tour companies offer day trips to Perito Moreno from El Calafte. Viator's full-day tour includes transportation from a local hotel and a guided tour for $ 106 per person.

    Thousands of taxi drivers in Shenyang, Liaoning province, reportedly blocked streets with their vehicles on Sunday in protest against unlicensed vehicles using taxi-hiring apps and apps-based car rental companies providing passenger services, including high-end cars. Although the drivers also complained about the withdrawal of the fuel subsidy (补贴)by the government, their main complaint was the loss of business because of the rising number of Internet-based car services companies.

    On Wednesday, news reports came that Beijing transport authorities will take measures to stop the illegal “taxi business” of private cars through the newly rising Internet apps, following the footsteps of Shenyang and Nanjing.

    It is not yet clear how the Shenyang city government will handle the issue and whether it will declare the services offered by market leaders such as Didi Dache, a taxi-hiring app provider backed by Tencent Holdings, and Kuaidi Dache illegal. But Shanghai transport regulators (交通管理结构)have set a rule, by banning Didi Zhuanche, or car services offered by Didi Dache in December.

    Such regulations will cause a setback to the car-hiring companies and investors that are waiting to cash in on the potentially booming business. Just last month, Didi Dache got $700 million in funding from global investors, including Singapore state investment company Temasek Holdings, Russian investment company DST Global and Tencent. Besides, the market is uncertain that Kuaidi Dache is about to finalize its latest round of funding after getting $800 million from global investors.

    Regulatory uncertainties, however, could cast a shadow on the future of the Internet-based car-hiring services, which have become popular in most of China's big cities. To be fair, these companies' business model is anything but bad. For example, Didi Zhuanche works side by side with established car rental companies to provide high-end car service mainly for businesspeople through the Internet and mobile phone apps.

    Every link in this business model chain has legal companies and services. Hence, it is hard to define it as illegal and ban it.

    As a young girl growing up in the 1930s, I always wanted to fly a plane, but back then it was almost unheard of for a woman to do that. I got a taste of that dream in 2001, when my husband arranged for me to ride in a hot air balloon for my birthday. But the experience turned out to be very dull. Around that time, I told my husband that I wanted to skydive. So when our retirement community announced that they were having an essay competition and the topic was an experience of a lifetime that you wanted to have, I decided to write about my dream.

    In the essay, I wrote about my desire to skydive, stating George Brush Sr. did age 80. Why not me? I was just 84 and in pretty good health. A year went by and I heard nothing. But then at a community party in late April 2009, they announced that l was one of the winners. I just couldn't believe it. Inspired by this, I decided to realize my dream, even though some of my family members and my doctor were against it.

    One June 11, 2009, nearly 40 of my family and friends gathered in the area close to where I would land while I headed up in the airplane. My instructor, Jay, guided me through the experience. The plane was the noisiest one I had ever been in, but I wasn't frightened－I was really just looking forward to the experience. When we reached 13,000 feet, Jay instructed me to throw myself out of the plane. When we first hit the air, the wind was so strong that I could hardly breathe. For a second I thought, “What have I gotten myself into?” But then everything got calmer. We were in a free fall for about a minute before Jay opened the parachute （降落伞）, then we just floated downward for about five minutes. Being up in the clouds and looking at the view below was unlike anything I have ever felt－much better than the hot air balloon. I was just enjoying it.

    Skydiving was really one of the greatest experiences of my life. I hope other people will look at me and realize that you don't stop living just because you are 84 years old. If there's something you want to experience, look into it. If it's something that is possible, make it happen.

    Ways to make a great first impression

    You've heard it a million times already, but it really does take but a few seconds to make that all-important first impression (印象). Here are some easy ways for you to impress your classmates or teachers.

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Before you shake hands with somebody, make sure that your hands are clean. The handshake should not be too strong or weak. Most people use their right hands, unless they have a reason to use the left.{#blank#}2{#/blank#}

    Be on time

    When meeting someone for the first time, arriving on time is as important as breathing. You may have an excuse, but that will leave the person who hardly knows you with a bad impression.{#blank#}3{#/blank#}It's better to be hanging around the place than be stuck in traffic.

    Introduce yourself and ask for names

    Make sure you properly introduce yourself. Ask for their name in a polite way.  {#blank#}4{#/blank#}This will increase the chances of their remembering your name in the future. Always remember to stand up when greeting someone and be sure to introduce them to anyone you're with.

    Make good conversation

To get the most out of your discussion, try to find something common between the two of you. {#blank#}5{#/blank#}A person will feel more comfortable with someone they can relate to (产生共鸣).

A. Use body language

B. Have a proper handshake

C. Repeat the name and use it later in conversation.

D. As a general rule, plan to arrive about 30 minutes early.

E. It could be a similar taste in clothes or a common hobby.

F. You'll be in serious trouble if you leave them with a bad impression.

G. However, don't have your left hand in your pocket because this appears impolite.

    In 2019, a big revolutionary technology shift will finally occur, which is called 5g. It is a once-in a-decade upgrade(升级)to our wireless systems that will start reaching mobile phone users in a matter of months. This new times will leap ahead of current wireless known as 4g by offering mobile internet speeds that will let people download an entire 120-minute movie within a second

    But this is not only about faster smart phones, but also will affect many other kinds of devices, including industrial robots, security cameras, drones(无人机), automatic cars, video games, sports, shopping and traffic data. With 5g technology, a clearer and truer 3D images will be formed and it can be off-loaded to other machines wirelessly, freeing users to move and making it easier to develop goggles(目镜)the size of eyeglasses. People can point a smart phone camera to a football game and see both live video on the display and player statistics or other data. Moreover 5g powerful effects extend to remote medical surgery and other fields that increasingly rely on high-speed connections.

    Officials in the United States and China regard 5g networks as a heated competitive edge. It can help spread the use of artificial intelligence and other cutting-edge technologies. Meanwhile, to get the benefits of 5g, users will have to buy new phones, while carriers will need to install new communication services, which will create a huge future market. In order to occupy it first, the famous world wireless service providers such as AT&T, Verizon, Samsung, Huawei have already declared that they will enter 5g business and showed their 5g new smart phones.

    However, in the United States, Verizon and AT&T will offer their 5g service with first use of high frequencies known as millimeter waves that can pump data at high speeds, but their signals don't travel as far. Instead Sprint and T-Mobile plan to start with lower frequencies, whose result may be somewhat slower initial speed, but wider range, although they all claim that they have mastered 5g technology. Thus they only first target the areas with large population. So 5g's full benefit to all are not expected until the main US key carriers upgrade their key switching equipment, which may happen in late 2019 or early 2020.

I love hiking. In the mountains, the birds sing for me; the various trees and flowers overwhelm (征服) my eyes and the deep blue of the sky inspires me and makes me feel calm. Furthermore, I can breathe the fresh air, keeping away from the dust and pollution of the city. It seems that all my senses are awakened when I am in the mountains. More importantly, hiking teaches me a lot.

I have been a traveler since childhood and was drawn towards mountains and their beauty. Later my reading several travel books made me think if I could also go on such journeys. Finally, I decided to give it a try. After I was well-prepared to face all difficulties of the hike, I joined a group of hikers. On the way, we encouraged each other, took beautiful pictures, and sat down now and then to feel the breath of the land. All my worries disappeared and we talked and laughed just like kids. This journey excited me for a long time.

I never actually realized the need for water until I started hiking. I remember once I was on a hike where our water was not enough. It was a night hike and the next day we had to return back to our base camp following the same route. So we have to save it for emergencies (紧急事件).That day I exactly learned water is of great value and that we have a duty to save it.

Besides enjoying the beautiful natural views, you have to go out of your comfort zone and push yourself hard to challenge your normal limits when hiking. On a hike, you may sometimes get injured but you can't stop until you reach the destination. Every next try will surely make you stronger and happier if you embrace (拥抱) your injuries, pains and discomforts.

Sometimes we may have a conversation with those locals living in wooden houses. You know, mountain life is hard and difficult. But they never complain about their life. They are happy with what they have. Many times they are facing extreme weather and they just fight with them. They are so brave. What can we complain about?