Dutch masters exhibition in Beijing

    The 17th century Dutch Golden Age had several significant artists and a range of great pieces produced during the period—including Jan Vermeer's Young Woman at Virginal,Jan Lievens' Boy in a Cape,and Turban and Rembrandt's Self-Portrait with Shaded Eyes.

    Some of the most refined examples of the time,including the three pieces mentioned above,will make their debut（首次亮相）in China as part of a world tour of The Leiden Collection.

    If you go:

    9 a.m.-5 p.m.,June 17-Sept 3 (closed on Mondays).National Museum of China,I Wusi Avenue,Dongcheng district.010-6400-1476.

    Ticket: 50 yuan ($7)

    The Age of Mechanical Reproduction

    The Age of Mechanical Reproduction,the latest exhibition at the Riverside Art Museum,features 41 artworks of US pop icon Andy Warhol,covering art installations,paintings and photographs.Warhol's well-known installation Electric Chair is a highlight of the show,which is also its debut in Asia.

    If you go:

    10 a.m.-5 p.m.,through August 28 (closed on Mondays).The Riverside Art Museum,Hongyan Road,Chaoyang district.010-5309-2062.

    Ticket: 60 yuan

    Back with a bang

    Beijing-based hand Escape Plan will hold a concert in Beijing this weekend.The band is most famous for the song The Brightest Star in the Night Sky.

    If you go:

    7:30 p.m.,June 17.Beijing Worker's Gymnasium,Gongti Beilu,Chaoyang district.400-610-3721.

    Ticket: 280-980 yuan

    Purple clay teapots

    Yixing purple clay potteries are a vital part of Chinese pottery culture and have been included in China's list of national intangible cultural heritage（国家非物质文化遗产）.A selection of more than 80 purple clay teapots will go on display at the Poly Art Museum starting Friday.The exhibit will include a range of delicate teapot works of Ji Yishun,Wang Xiaolong and Gao Lijun,who are all inheritors（继承人）the time-honored（历史悠久的）pottery handicraft.

    If you go:

    9:30 a.m.-4:30 p.m.(closed on Sundays),through June 30.Poly Art Museum,New Poly Plaza,1 Chaoyangmen North Street 9.010-6500-8117.

    Ticket: 20 yuan

    Native to America, the cane toad (癞蛤蟆) was introduced to Northern Queensland 70 years ago to control sugarcane beetles (甘蔗害虫). The toads failed in that duty but spread across Queensland and into neighboring northern areas.

    Now it calmly invades(侵略) the stats of Western Australia and New South Wales ( NSW). NSW wildlife experts fear the amphibians － which have poisonous backs that kill hungry predators (食肉动物) 一will have a terrible effect on native animals.

    Those fears may be about to be realized. Australia's leading government research body, the Commonwealth Science and Industry Research Organization (CSIRO), forecasts that a rise in average temperatures will make NSW an ideal living place for the cane toads.

    Tony Robinson, head of CSIRO's Wildlife, Pests, and Diseases Program, said climate change is increasing the amount of suitable living place for the cane toads.

    “With climate change, the cane toads might go down as far as Sydney and some areas of Western Australia,” Robinson said.

Recent estimates put the pace of the toads' westward march at nearly 17 miles (27 kilometers) a year and slightly slower from north to south.

    “More southerly (南部的) cities, such as Melbourne and Adelaide, would likely remain too cold and dry to ever suit the toads,” Robinson noted, “but Perth could expect cane toads in five years' time.”

    Sydney could see their arrival in the next 20 years.

    Robinson said there is no method that will keep the toads under control.

    The cane toads already cover at least half of Queensland and most of the northern country. The toads are believed to number in the billions.

    A Venezuelan virus was tried in the 1990s but had to be given up after it was found to also kill native frog species. Scientists and governmental bodies believe a national approach is needed.

    The main threat the toads cause to species such as dingoes, and crocodiles is the poison contained in glands (腺) on each of their shoulders. The poison sprays out when the toads are threatened or handled roughly. The poison is made up of 14 different chemicals.

    Cane toads also compete, and usually win, the hunt for food and living space.

    "”If the government and other states combine resources, I believe we can achieve a very practical biological-control research program,” Bums said.

    20 years ago, a couple of ecologists, Daniel Janzen and Winnie Hallwachs, convinced Del Oro, a large orange juice producer, to donate part of their forestland to a national park in exchange for the right to dump (倾倒) massive amounts of orange peels on a 3-hectare piece of land within the national park, at no cost. Dealing with tons of waste peels usually involved burning them or paying to have them dumped at a landfill, so the proposal was very attractive.

    A year after the contract was signed, Del Oro dumped around 12,000 tons of sticky orange waste in the land. However, another juice company and rival of Del Oro challenged the deal in court, arguing that their competitor was “polluting the national park”. They ended up winning, and the deal between Del Oro and the national park fell through. The 3-hectare piece of land virtually covered with fruit waste was completely forgotten.

    Then, in 2013, Timothy Treuer, a scientist at Princeton University visited that piece of land 15 years earlier. What he found shocked him. “It was completely overgrown with trees and vines,” Timothy Treuer recently said, “the difference between fertilized and unfertilized areas was visually surprised us a lot! We needed to come up with some really good standards to evaluate exactly what was happening there.”

    To confirm that the fruit waste was responsible for the revival of plant life, Treuer and his team spent months picking up samples, analyzing and comparing them. They found “dramatic differences between the areas covered in orange peels and those that were not. The area fertilized by orange waste had richer soil, greater tree-species richness and greater forest coverage. In a sense, it's not just a win-win between the company and the local park—it's a win for everyone.”

    The effect the orange peels had on the land is probably not that surprising to people familiar with composting (堆肥), but what is shocking is that a judge actually called this particular example polluting the national park and stopped it from going forward. Now that Timothy Treuer's study has received worldwide attention, this type of polluting is being seriously considered as a way of bringing tropical forests back to life.

    Summer is the most popular season to visit Texas since there is so much to see and to do. While visiting the Lone Star State this summer, don't miss visiting some of these attractions and taking part in some of Texas' best summer vacation activities.

    Visit SeaWorld

    There are sea life shows, adventure camps, thrilling rides and a water park. A great many activities are waiting for you at SeaWorld.

    Windsurf at South Padre

    With miles of shallow（浅的), calm water in the Lower Laguna Madre and strong winds coming off the Gulf of Mexico. South Padre Island is a windsurfer's dream.

    Swim at Barton Springs

    Barton Springs is in the famous Zilker Park. It was formed when Barton Creek was built. Since its opening. Barton Springs has become one of the most popular swimming pools in the state.

    Take part in an outdoor adventure

    In the scenic Texas Hill Country. Lake Buchanan Adventures offers different kinds of activities, including boating, hiking, camping and more.

    Camp and hike in Big Bend Park

    Big Bend offers a great number of outdoor activities in an old way. Backpacking. mountain biking fishing boating hiking nature watching and camping-you name it. If it can be done outdoors.it can be done in Big Bend.

    Enjoy saltwater fishing

    Saltwater fishing in Texas is as good as anywhere else in the USA. More and more fishermen have been discovering this in recent years and packing their bags and rods （鱼竿） to make good use of Texas' world-class saltwater fishery.

    God has a way of allowing us to be in the right place at the right time.

    I was walking down a dark street late one evening when I heard screams coming from behind a clump of bushes (灌木). Alarmed, I slowed down to listen and soon realized that what I was hearing was the unmistakable sounds of a struggle: mad fighting and tearing of clothes.

    Only yards from where I stood a girl was being attacked. Should I get involved? I was worried about my own safety, and regretted having suddenly decided to take a new route home that night. What if I became another victim? Shouldn't I just run to the nearest phone and call the police?

    The girl's cries were growing weaker. I knew I had to act at once. How could I walk away from this? I finally made up my mind. I could not turn my back on the fate of this unknown girl, even if it meant risking my own life.

    I am not a brave man, nor am I physically strong. I didn't know where I got the courage and strength, but once I had decided to help the girl, I became strangely different. I ran behind the bushes and pulled the attacker off the girl. Struggling, we fell to the ground, where we wrestled for a few minutes until the attacker jumped up and escaped.

    Out of breath, I stood up and approached the girl, who was behind a tree, sobbing. Not wanting to frighten her further, I at first spoke to her from a distance. "It's okay," I said softly. "The man has run away. You're safe now." There was a long pause and then I heard the words, spoken in wonder, in amazement. "Dad, is that you?" And then, from behind the tree, out stepped my youngest daughter, Katherine.