1 . Ask people to name the world's tallest peak and anybody with sound general knowledge will name Mount Qomolangma. But quiz them on its exact __and many will be not sure.

In 1975, Chinese surveyors __ that Mount Qomolangma （Mount Everest） was 8848. 13 meters high. As __ improved, satellites, photoelectricity, radars and gravity measurement technologies were __ to get more exact figures. Of course, someone still had to carry __ to what is the world's rooftop.

In 2005, a Chinese team scaled Qomolangma and found that it was not as high as that, as they __ the height to be 8844. 43 meters. Scaling Qomolangma is no __ task. The average air temperature there is -29 degrees Celsius, even four degrees_____ than in Antarctica. The snow there is 4 —5 meters thick and hurricane-like __ blow all the time. Team members were training to __the extreme conditions.

In a nutshell, measuring the Qomolangma's height is a tall order, __ huge amounts of money and human resources, But it is worth the_____. Qomolangma is the perfect __ for observing crustal （地壳的）movements. And changes to the peak's height could __ whether the two plates are heading toward or away from each other.

Besides, the condition of snow and other natural materials at the top is an indicator of upcoming climate change on the Tibet-Qinghai Plateau. That's __ measuring the Qomolangma's height is so significant. Put to good use, it can benefit mankind.

2 . “You’re very talented, dear. I hope everything turns out great. I’ll tell my friends about the animal shelter (避难处),” a kind old lady told Conrad, who smiled _______ as she left $20 in his hat.

Conrad was proud of what he was doing and people in the _______ loved hearing him sing and play his _______ . The 11-year-old didn’t know _______ how much money the local animal shelter needed.

His mother, Sandy, worked at the shelter and had always been a(n) _______ animal lover. Therefore, he grew to be fond of animals as well. _______ , he recently heard his mother telling a friend that the shelter was not doing well. It _______ purely on donations, and not much donations were _______ . This made the boy very _______ . So he grabbed his guitar and ________ the local town square to sing and play.

He placed a ________ to tell people he was doing it to raise money for the animal shelter, which helped greatly. People ________ and gave him mostly $1 and change, and others, such as the kind old lady, were more ________ . He was grateful to everyone and continued playing songs and ________ money.

Raise your kids to love animals, and they’ll be better people. Caring for innocent animals makes people more selfless, ________ and caring. That’s why Conrad used his skills to raise funds, knowing how vital the shelter was.

4 . A lot of people fear getting old, because aging is often linked to loneliness. But Terry, 75, in Green Bay, knows _________ what to do to keep sadness from seeping(渗透) into his _________.

Terry, an animal lover whose heart has a very _________ spot for cats, frequently drops by the animal shelter in Green Bay to hold the _________ cats close and have a short see with them!

The charming _________ of the old man having a short seep while surrounded with cats _________ the workers. It showed such beautiful _________ that the workers always found themselves taking _________ of Terry and all the cats and posting them on the Facebook page.

_________, one photo with the cat, Lois, appealed to the followers of the page and __________ over 47,000 “likes”! In fact, in less than a day, Lois was __________ by a new family!

Terry has become popular on the Internet. But more than.the __________, the old man is very happy to know that his love for cats is bringing a lot of help to the animal shelter by __________ a lot of people to donate to the shelter.

Terry is happy, the __________ behind which is not difficult to understand. His story just goes to show how a small __________ can make a big difference.

5 . As an only child, Nicole Renae often felt lonely in her youth. But that all _________ when her grandmother surprised her with a (n) _________ puppy “Chloe” for her 10th birthday.

The two were inseparable, because they were best friends. Chole always _________ her face. But when Renae was 14, her father got a new job: He’d be working from home without _________ . With no option, the family surrendered (被迫交出) noisy Chloe to a humane society although Renae didn’t want to _________ her dog.

In time, Renae had a child of her own. Remembering the _________ that having a dog had brought her as a kid, Renae wanted her daughter to _________ the same. Then one day, she saw a     _________ on Facebook about a senior dog named Chloe that needed a new home. _________ she decided to adopt this dog.

When Renae met Chloe, she was struck with a __________ feeling. The dog ran up to her and started licking her face. Chloe __________ Renae so much of her old dog that the __________ overwhelmed her. She knew it was her Chole. __________, ten years had passed since they last met, and her whole family thought she was crazy.

Luckily, there was a way to __________ the theory: Her Chloe had a microchip with the ID number. Sure enough, the dog also had a microchip and the numbers were a __________ . Renae was overjoyed to have her back.

6 . A student at Hellesdon High School in England has been called “Rubbish Girl” for her environmentally­friendly ways. _____, that has not stopped her from cleaning up the environment.

Using the basket on her bicycle, 12­year­old Nadia has been _____ rubbish along her two­mile route to and from school since September of last year. _____ her good intentions, some of the kids at Nadia’s school have nicknamed (给……起绰号) her “Rubbish Girl” and have bullied her for her selfless efforts to help the _____. But instead of letting them bring her down, she’s using their negativity as motivation (动力).

“I’m not going to _____ doing the right thing because of them,” she said. “I’m doing something to _____ the world which they also live in. It’s everyone’s job. We are all _____ for keeping this world safe, instead of believing it’s always someone else’s job.”

Nadia’s mum, Paula, said she is _____ proud of Nadia for not only standing up to her bullies, but also standing up for what she believes in. “I told her she had two _____ — she could either stop collecting rubbish, stop attracting their ______ so that they would leave her alone, or she could face the challenge, be the ‘rubbish girl’ and keep her ______.”

As a result of the local media attention, Nadia has created a group named “Team Rubbish Girl”, where she shares updates on her green efforts. Positive ______ have poured in, all in ______ of Nadia, encouraging her to carry on with the green efforts.

“Sweetheart, you are a star that ______ really bright above the rest. Hold your head high and never let others ______ you. You are doing something selfless and amazing. Shame on the bullies,” wrote one of the local citizens on her web page.

7 . Mariah Reading is an environmentalist, who grew up with an early appreciation for nature. While studying art at Bowdoin College, she saw the vast amounts of _______ from her painting and sculpture classes. She began to seriously consider her footprint as a(n) _______ “How can I paint landscapes if I’m   _______ them?” she thought. Then she started using the refuse (垃圾) as her canvas (画布).

After graduation, Mariah travelled throughout the country, _______ rubbish to bring to her studio. One day, a _______ hubcap (轮毂盖) she found by the side of the road gave her a new _______. She noticed the half hubcap had cracked off to _______ the line of the mountain range that she was in. So she _______ the mountain landscape on it and held it up in front of the real _______ and took a photo. It became the first in her __________ series.

Over the years, she has painted more than 100 pieces of rubbish transformations __________ matching real-life landscapes. It’s like __________ new life into forgotten objects. Her practice __________ the principle of “leaving no trace” by __________ painting with sculpture and photography.

Mariah hopes people see themselves and their own habits __________ into her works and make small changes in their everyday lives.

8 . One evening, Catherine was at home as usual. As her____swung between what she was going to do with her life and their dinner plans for the evening, she was unexpectedly ___by an urgent call from her sister “Get over here! Turn on NBC and check these guys out. They are just like you…” One Facebook message and a phone interview later, Catherine____herself on a bus with 8 strangers in the middle of the sweltering desert heat of Utah, picking up trash and ___awareness about zero-waste and climate change.

With a deep____of the environment and a desire to make a __ , Catherine, Davey, and a group of self ___“environmental pick-up artists” went on a coast to coast road side trash pick-up. As they walked, sometimes only______0.9 miles in an entire day, they ____ and steadily made their way across the United States for three years, picking up a total of 201,678 pounds of trash.

Catherine and Davey____with us wonderful stories of hope and inspiration that fueled their___to continue their journey. After spending weeks silently______how she would have enough _____to fly home for their two-week spring break, Catherine found a blank, unidentified envelope____with $850 cash in the desert. Just enough to get her home and back. After their bus____outside of Denver, they unexpectedly got ____ and arrived in Yosemite National Park three weeks later, just in time for the “Yosemite Facelift” where____ from all over the state came together with a______of cleaning up trash all over the park.

Being at the right place at the right time became almost normal, and they realized that much of what they ____was more than just a coincidence. Together, their team learned to simply ____themselves to their task, and surrender to the journey.

10 . Mariah Reading is an environmentalist, who grew up with an early appreciation for nature. While studying art at Bowdoin College, she saw the vast amounts of _________ from her painting and sculpture classes. She began to seriously consider her footprint as a(n) _________. “How can I paint landscapes if I’m _________ them?” she thought. Then she started using the rubbish as her canvas (画布).

After graduation, Mariah travelled throughout the country, _________ rubbish to bring to her studio. One day, a _________ hubcap (轮毂盖) she found by the side of the road gave her a new _________ . She noticed the half hubcap had cracked off to _________ the line of the mountain range that she was in. So she _________ the mountain landscape on it and held it up in front of the real _________ and took a photo. It became the first in her __________ series.

Over the years, she has painted more than 100 pieces of rubbish and photographed her transformations __________ matching real-life landscapes. It’s like __________ new life into forgotten objects. Her practice __________ the principle of “leaving no trace” by __________ painting with sculpture and photography. Mariah hopes people see themselves and their own habits __________ into her works and make small changes in their everyday lives.