1 . A 23-year-old woman has achieved an unbelievable feat that many of us dream of -visiting every country on Earth.

Lexie Alford was born into a family of travel agents, which gave her the opportunity to ________ places such as Cambodia,Dubai and Egypt during her childhood, according to Forbes magazine. She began saving up at age 12 to ________ her goal of visiting all countries. By her 18th birthday, she had travelled to 72 nations. In October,2016 she realized she could see the ________ nations on her list in time to set an official record. Many people ________her travel on social media platform Instagram, so she decided to chase the world record partly to ________ others. “Honestly，in the beginning, I ________ wanted to push the ________ of what I thought I could do with my life and see as much of the world as possible in the ________,” she told Forbes. “It wasn’t until things started getting really________ that I realized I was inspiring people around me, especially the ________．”

I also loved visiting Northern Pakistan, for the natural beauty of the mountains and kindness of the locals were astonishing,” Lexie Alford said. “The most pleasant surprise about travelling to all these misunderstood areas of the world was that the countries that I had the________ expectation for ________ being the most incredible.”

“My ________ for young people is to believe that you can do anything you set your mind to do. If you want to travel, you have to ________ sacrifices to travel around the world. And it’s only a matter of ________ until you can make it a reality.”

2 . Brooklyn Children’s Museum

Founded in 1899 as the country’s first museum specifically made for children, today’s BCM is comprehensive, with a permanent collection of 30, 000 objects, including musical instruments, masks and dolls. Kids love the interactive World Brooklyn, a small cityscape lined by stores where children can pretend to be working as grown-ups.

Children’s Museum of Manhattan

Looking for interactive art that welcomes curious minds? Then head to Inside Art, the current show up at CMOM, which lets the little ones climb in and over and all around the exhibits. It’s ideas like this that make the 40, 000-square-foot so special. Learning about culture, history and science is a pride for kids aged six and under. CMOM also hosts classes-like Gross Biology for kids who are interested in insects-all designed with the latest child-development research in mind.

DiMenna Children’s History Museum

The hands-on displays at this kid-focused arm of the New York Historical Society transport children back through 350 years of US history with a special focus on NYC. Children are encouraged to climb around and interact with exhibits that highlight the lives of kids who grew up to become famous doctors, athletes and political figures. Little New Yorkers can get in on sing-alongs and crafts. Other family programs include cooking classes, games and story hours.

Staten Island Children’s Museum

Staten Island Children’s Museum nurtures creativity. It offers hands-on experiences like the Block Harbor (plenty of blocks to play with!), larger-than-life games like Connect Four and Dominoes, and even the opportunity to climb through a human-sized anthill or play firefighter at Ladder 11, so you’ll find immersive (沉浸式的)fun around every corner. Don’t forget to stop by Green LivingRoom powered by the wind energy where the kids can learn about ways to reduce our carbon footprint.

Ecotourism has     1    (it) origin with the environmental movement of the 1970s. It was not widely accepted as a travel concept     2     the late 1980s. During that time, increasing environmental awareness made it desirable.

Due to     3     growing popularity of environmentally-related and adventure travel, various types     4     trips are now being classified as ecotourism. Actually, a true eco-friendly trip must meet the following principles.

10 . A butterfly-shaped island in the central Aegean hopes to become Greece’s first carbon-free tourist destination.Under a deal with the government, Volkswagen, a carmaker, has donated several new electric vehicles for use by Astypalea’s public services; it will sell others at cost price to its 1,200 year-round residents. In return, the government has offered more financial assistance for islanders to buy electric cars and will build a solar and wind-fuelled power plant to replace polluting generators.

Unlike other nearby islands, Astypalea is not connected to Greece’s electricity providers. With only 3,000 rooms for visitors in small hotels or flats, tourism is still low-key. Many residents make a living the old-fashioned way: raising goats, keeping bees and fishing. The island was selected for Volkswagen’s experiment after Nikos Komineas,the go-ahead mayor, contacted the transport ministry for help in finding an electric bus to try out on its rough roads.

Most islanders sound keen on the project. Mr Komineas expects the number of private cars on Astypalea to fall by a third over the next five years. Its residents, he says, will get around on electric minibuses, which will be free,linked to a mobile-phone app and available round the clock.

Some observers smell greenwashing in the project. A bid for a solar park that would generate half the island’s electricity within three years will not get under way before the tourist season ends. A single wind-fuelled engine will be set up only in 2026, assuming the licensing process goes smoothly. That is not normally the case in the Aegean, where islanders worry that tourists will go elsewhere if the view is spoiled by an engine 200 meters high. And even then, the solar and wind-fulled power unit is planned to cover only about 80% of summer demand. But it is a start.