【推荐3】In March 2013, on a rainy night, my partner Reece remembered that he had forgotten a box in his car and went out to get it. On his way back inside he noticed a small shadow moving on the driveway. As Reece moved towards the shadow, he realised it was a young hedgehog(刺猬), all wet in the grass，eating mud. He quickly removed his jacket and picked it up. The hedgehog was very weak and unable to move about quickly. He didn’t seem to be frightened, nor did he resist being lifted.

Once inside, Reece called out to me, saying that he had something that would make my heart melt-he was right! We named the hedgehog Alf, and this little creature was amazingly intelligent. Not only did he learn to cat his dinner and drink water from his bowls, and use a paper-covered mat for his “business”, but he also learnt to wait for us inside his little indoor house and also jump into his pet carrier whenever we took him out with us. Alf knows us very well and recognises both our voices Unfortunately.in April 2014. I was caught in a car accident and had to spend two months in Auckland City Hospital. And I really missed Alf. Reece told me that Alf had been searching around the house for me, checking in places where I’d normally be, such as my desk, my favourite seat in front of the TV and even my side of the bed.

One evening, Reece set up a video call for me from my hospital bed and I was extremely happy when I saw the little guy appear on my phone. When I told Alf that I would be home soon, he started moving his head and holding out his arms as if trying to reach me through the screen.

The fact that Alf recognised that it was me, gave me the strength to get through my recovery. I cannot describe the feeling when I arrived home and saw his little face again.

JIUQUAN, Gansu Province, Sept. 6 (Xinhua) — China’s manned spacecraft Shenzhou-7 will be launched at an appropriate time between Sept. 25 and 30 from the Jiuquan Satellite Launch Center in northwestern Gansu Province, a spokesman said here on Saturday. The mission will accomplish the first spacewalk by Chinese astronauts.

“All the major systems involved in the launching are now in the final preparation. The main tests for the spacecraft, the Long-March II-F rocket, suits for the space walk and a satellite accompanying the fly have also been finished, ” said the spokesman.

In addition, the ground control system is fully prepared, including the launch site, the landing site, and the communication for observation and control.

When Shenzhou-7 enters its orbit, one of the three taikonauts will conduct a space walk, said Zhao Changxi, a senior scientist with the project, earlier.

According to Zhao, cameras would be fixed outside and inside of the ship for live broadcasting of the space walk.

While the last mission of Shenzhou-6, with a crew of two, was aimed at several days of manned flight, this time the task might be more stringent as one of its main goals is the space walk.

Earlier reports said a crew of six astronauts had been chosen for the mission, with three manning the spacecraft and three substitutes.

China successfully put two manned spacecrafts into orbit in 2003 and 2005 respectively, becoming the third country to send an astronaut into space after the United States and the former Soviet Union (now Russia).

【推荐2】A company Watergen has created a machine that can produce clean and drinkable water out of air. The device, called GENNY, is small enough to be used in a home or office but can produce up to 30 liters of water a day.

GENNY takes air in and passes through a filter (过滤器) to remove dust and dirt. The filter is powerful enough to work with high air pollution. The air is directed through GENIUS, a heating and cooling process which causes water in the air to condense(凝结). This water is then passed through several more filters and minerals are added to improve the flavor of the water. Finally, the water is stored in a tank to keep it fresh. Therefore, the water produced by GENNY is often of a higher quality than water running through filtration systems attached to the city’s water lines.

The technology of GENIUS is much better than other technologies that produce water from air. It produces four to five times more water per kilowatt-hour. Watergen has other products that use this same technology on a larger scale, the largest of which can produce up to 5,000 liters of water per day.

As an added bonus, during the water production process, GENNY can send out clean air which is healthier for people to breathe.

At the Consumer Electronics Show in Las Vegas, GENNY was named the Energy Efficient Product of the Year. The award series recognize the world’s top high-tech home products.

Last year, Watergen’s large-scale products were donated to authorities in Brazil, Vietnam and India for people to use. They also assisted rescue and recovery efforts during the 2018 California wildfires and provided clean and safe water for the residents of Texas and Florida due to the result of the destruction caused by hurricanes Harvey and Irma.

【推荐3】Robots are smart. With their computer brains, they help people work in dangerous places or do difficult jobs. Some robots do regular jobs. Bobby, the mail carrier, brings mails to a large office building in Washington D.C. He is one of 250 mail carriers in the United States.

Mr. Leachim, who weighs two hundred pounds and is six feet tall, has some advantages as a teacher. One is that he does not forget details. He knows each child’s name, the parents’ names and what each child knows and needs to know. In addition, he knows each child’s pets and hobbies. Mr. Leachim does not make mistakes. Each child goes and tells him his or her name, then dials an identification number. His computer brain puts each child’s voice and number together. He identifies the children with no mistakes. Then he starts the lesson.

Another advantage is that Mr. Leachim is flexible. If the children need more time to do their lessons they can move switches. In this way they can repeat Mr. Leachim’s lesson over and over again. When the children do a good job, he tells them something interesting about their hobbies. At the end of the lesson the children switch Mr. Leachim off.

【推荐1】Dragging a sleigh loaded with enough presents for the world's children can be no easy skill. But, since ancient times, the duty has been performed by a team of beloved reindeer.

Soon, however, we may have to start looking around for a stronger type of animal, as new research shows the species is becoming increasingly puny. A 16-year survey on the arctic Norwegian islands, Svalbard, found the reindeer there have declined in weight by an alarming 12 percent.

The reduction in average body weight is being blamed on global warming. In the research presented lately at a meeting of the British Ecological Society in Liverpool, scientists have explained how upward temperatures are robbing female reindeer of nutrients during important periods of pregnancy.

Snow in Svalbard typically covers the ground for eight months of a year, which, combined with low temperatures, limits grass growth to June and July. But as summer temperatures increase by around 1.5 ℃, grass has become more productive, allowing female reindeer to gain more weight by autumn and therefore to have more babies. However, winters have brought with them greater rainfall which freezes when it settles on the snow. Reindeer can often access the poor food sources beneath the snow by clearing it away with their antlers（鹿角）, but they cannot break through the hard ice. As a result, female reindeer are becoming starved, causing them to lose their babies or give birth to the much lighter young.

Despite the findings, reindeer appear to be suffering less from the effect of climate change than some other arctic species. Last week the scientists warned that a third of the world's polar bears could disappear in the next 40 years.

【推荐2】As the world’s population continues to increase, so does the amount of global waste people produce. According to data collected by the World Bank Group, nations are on pace to generate 4 billion tons of waste annually by the year 2100. Many experts are calling the problem of global waste a worldwide health crisis because the waste is ruining the world’s oceans, air and soil and endangering the health of all living things.

For years, government agencies have been telling citizens that living a zero-waste lifestyle is the way to go. Now some grocery stores are helping people do that.

Most grocery stores produce waste when they throw away food and packaging material. In some cases, the food consists of fruit and vegetables that don’t look good any more. In other cases, it’s packaged food that is nearing the “sell-by” date printed on the package. After the sell-by date passes, the food is not considered safe to eat. Thus, many stores throw out unsold packaged food before that date arrives.

To solve this problem, business people are opening smaller zero-waste grocery stores. Instead of selling food in packages, these stores offer it in open containers. Customers bring their own bags or clean containers to the store. There, they fill their bags or containers with everything from nuts and grains to oil and vinegar. They pay for only the amount of each product that they need. Zero-waste stores often sell fruit and vegetables as well. When these goods start to look old, they’re sold at a discount or donated to a charity. Inspired by these smaller zero-waste grocery stores, some large supermarkets are taking similar steps to reduce the amount of waste that they produce.

【推荐3】A Walking Tour in Rocky Mountain National Park, Colorado

Rocky Mountain National Park covens about 41 square miles with dozens of mountain peaks. More than 250 species of birds will delight your senses and more than 900 types of wildflowers will keep you marveling（感到惊奇）a their beauty.

Your Colorado walking tour officially begins. To ensure that you arrive on time we strongly suggest that arrive one day before the departure date.

Day 1 The trip begins a 1:00 p. m. Travel by bus to Rocky Mountain National Park. Check in our accommodations，enjoy a fresh lunch and head into the park for our first hike.

Day 2 During today’s hike we will cover 3.8 mile. We’ll stop to enjoy both “The Pool” and Fern Falls on our way to Fern Lake. You’ll enjoy every minute of today’s hike and then spend a relaxing evening n the town of Estes Park.

Day 3 Glacier Gorge .the main section of the Park, has some of the most beautiful attractions in the Park. Today we’ll push our boots u the trail to Black Lake，about 4.7 miles. With views of Longs Peak, we’ll hike Past a major waterfall and several smaller lakes before arriving at Black Lake.

Day 4 Today we’ll head t1o Wild Basin, southeast of the main park area, for a hike to Ouzel Lake. Wild Basin traverses（穿过）through Aspen forest past rushing streams, to a high mountain lake where we will enjoy a picnic lunch.

Day 5 The Flat Top Mountain area will delight your senses with thick forests and meadows of abundant wildflower Our feet will carry u for about 8.8 miles.

Day 6 Catch the Estes Park Shuttle to Denver International Airport or continue on your own to other adventures!