2 . Brendon Birt accidentally took a wrong turn down a street in Red Oak, Iowa. But it turned out it was exactly where he was _________! As he drove down the road, he saw heavy smoke from a family’s home. He knew the home was on fire. Without thinking, he stopped his car, called 911 and ran towards the _________ Brendon ran up and saw most of the downstairs was already full of _________. “I just believed there had to be someone _________ inside the house because it was so late at night,” Brendon said. “I knew I had to act _________. Every second that was going by was just getting worse.” He _________ to the side of the home and started pounding on the windows with _________, calling for the people to get out.

The homeowner, Tender Lehman, was _________ that night but her three younger children ages 8, 14, and 17 were inside being looked after by her _________ son, Bryce Harrison, 22. No smoke alarms __________, so if it weren’t for Brendon’s warning, they might not have ever __________ Brendon was relieved (放心) when he saw the four children run out of the __________ to safety. Days later, Tender came home and went to see the man who __________ all four of her children. “I’m so __________,” Tender said. “My kids wouldn’t have __________ it, without your kind action.”

3 . High school biology teacher Kelly Chavis knew smartphones were a problem in her class. For one class period, students used a whiteboard to count every Snapchat, Instagram, text, call or other notifications that appeared on their phones.   Chavis   told   students   not   to _________ these notifications.

Teachers around the country have done similar experiments, usually _________ dozens of markings on the whiteboard. Chavis, who teaches honours-level classes, was _________ by the results of her experiment.

Chavis is among a growing number of teachers, parents and health experts who believe that smartphones are now partly to blame for increasing the levels of student _________. The use of electronic devices is so _________ that the National Education Association newsletter said it was a “mental health tsunami (海啸)”.

Tests, after-school activities and problems at home can increase _________ for students. But research now _________ that smartphones and social media are some of the main reasons for the rising levels of uneasiness.

Last year, an editorial in the journal Paediatrics proposed that doctors ask young patients about their social media use as part of routine exams. Three researchers wrote that too much social media use might _________ the development of mental health disturbance in at-risk teenagers, such as feelings of _________, depression and anxiety.

Researchers are still not sure whether phones cause student depression or depression causes phone use. __________ 70 percent of teens see anxiety and depression as major problems among their peers, according to a Pew Research report. Nearly 60 percent of parents said they were __________ about the influence of social media on their children’s physical and mental health.

Schools are starting to take steps to deal with the problem. Many public schools pay outside companies to watch students’ social media activity for signs of __________. Others invite in yoga teachers and comfort dogs to help __________ students. Some schools have organized unplugged events — days in which people do not use their electronic devices. Less than 20 percent of students and school employees took part, __________ the control that technology has over their daily lives.

Some parents are not letting their children get smartphones until they grow up. Deirdre Birmingham of New Jersey __________ a campaign called “Wait Until Eighteenth” because she didn’t think her video game-loving 10-year-old son was ready for a smartphone. The campaign involves groups of parents who have children in the same class. These parents agree not to let their children get phones until they are teenagers.

4 . Facebook is a social media website that has attracted millions of members. But it seems that some people have something _________ to say about it. To them I have only this to say: _________, please!

A recent article blamed (责备) Facebook’s ability to ruin _________, saying that it limits communication to _________ and encourages people to spend far too much time with friends they have _________ met.

Having used Facebook since its first year, I find these arguments _________. The simple truth is that these _________ are only a symptom (症状) of using Facebook too much. Like many things, it is only _________ to your life and relationships when you overuse it.

Facebook can be_________. You can use Facebook to find friends who may have long ago __________ their e-mail addresses and phone numbers. You can __________ what your old college friends are up to. You can __________ your friends on their latest birthday. You can also __________ articles and pictures you find interesting with your friends.

Sure, I had days when I __________a little more time on Facebook than I should, but I’m not going to blame Facebook for my own __________. If Facebook weren’t there, I would have found something else to waste time.

5 . People using ad-blocking software who visited the New York Times website in March were shown a message. This read: “The best things in life aren’t _______.” It went on to explain that, “Advertising helps us fund our journalism,” and gave the visitor two options to read the newspaper’s online content: _______ their ad-blocking software or pay for a subscription.

Despite many internet users’ opposition, a number of publishers are now banning ad-blocking software. Aidan Joyce, chief executive of Oriel, says, “Most ad-blocking users do not object to a reasonable advertising experience _______ quality free content.” Mark Thompson, the group’s chief executive, said, “Anyone who refuses to contribute to the creation of high-quality journalism has no right to _______ it.”

To satisfy people who hate advertising, the news organization plans to introduce a higher-priced, advertisement-free _______. Ben Barokas, chief executive of Sourcepoint, thinks that media groups should offer consumers a range of different ways to _______ content, including for-free with ads, micropayments and subscriptions.

However, Sean Blanchfield, chief executive of PageFair, argues that publishers need to exercise care in how they ban ad blockers. “Users have justifiable concerns,” he says. “Ads that are served today have serious privacy and security problems.” Mr. Blanchfield says that PageFair aims to help publishers. “_______ the advertising experience in a way that the typical ad-block user wouldn’t find offensive.”

Publishers that ban ad blockers also risk losing their audience to competitors that turn out more _______. In some ways, that matters little. But internet users are not just _______ consumers; Instead, they often help distribute a publisher’s content by sharing links with friends through email, forums, and social media.

More than half of U.K. adults using an ad blocker said that they would switch it off if doing so was the only way to access a website, according to a survey by YouGov. Meanwhile, Sweden’s biggest publishers will ________ block people next month who use ad-blocking software. The idea is that they will be able to turn the ad-blocking tide with a combined effort.

7 . Since the beginning of the twentieth century, the number of wild tigers has been on an alarming decline. ________, it appears that the situation has finally changed. The ________ of specialised conservation programmes has ________ the first growth of wild population number for over a century and, while still not strong enough, the big cat's future seems a little more positive.

For those whose wildlife dream is ________ this wonderful big cat in its ________ habitat, a well-organised tiger trip to one or more of the parks and ________ of the Indian subcontinent ________ the chance to do just that. Anyone fortunate ________ to go on a tiger trip should become familiar with not only the physical characteristics of the big cat, ________ also the major threats to its survival.

The tigers' habitat often covers some parts of the human ________. With the destruction of forest habitats leading to a(n) ________ in smaller prey species (猎物), the tigers are often forced to leave the protection of its own range and take the risk of going into human areas to ________ cows or sheep. Because local people ________ these farm animals, this causes ________, resulting in the killing or capturing of the animal to ________ on the black market.

While there are numerous high-profile conservation campaigns in action around the world, everyone should play a part. For those planning to explore the Indian subcontinent on a tiger trip to see this mysterious big cat in its natural habitat, helping to raise the profile of its endangered position is one way to help ensure its survival.

10 . Books are very important for us in our life. Books teach us about the world and open our minds to amazing new ideas. And where’s the best place to _________ piles (成堆的) and piles of enjoyable books? The library! But what if you live far, far away from the library? Sometimes, the library can _________ you!

Some families in the Gobi Desert travel from place to place _________ their animals. A library in a building would not _________ for them, because it couldn’t move. But a camel library can!

The first _________ libraries in England were pulled by horses. Now trucks do the _________ . Library trucks, also called bookmobiles, drive all around the city and into the country. Some villages in the mountains of Thailand, _________ , can not be _________ by truck. To bring books, you have to walk or ride an elephant. Besides elephants, there are some other   _________ that help move the ______________ . Luis Soriano, a librarian in Colombia, ______________ up and down the hills of Colombia every weekend with his donkeys (驴), bringing ______________ to children who live in faraway villages.

Books are delivered to other places in ______________ ways. In the icy Arctic areas of Canada, kids who live in small towns there get books in the ______________ from libraries in bigger cities. When they’ve ______________ reading the books, they bring them to the post office to ______________ them back.

Before cell phones, if you wanted to make a ______________ outside your house, you used a phone box. Now that most people ______________ their own phones, some telephone boxes in England have been ______________ libraries! Wouldn’t it be nice to have a tiny library on the corner of your street? The good news is it’s open 24 hours a day. The ______________ news is if you want to sit down, you’ll take up the whole library.