【推荐1】It is almost impossible to be left alone in a digital world, where people are meant to be connected. In this respect, digital technologies have _______ our life.

The possibility to be connected all the time has brought our personal space to a(n) _______ as we've known it. People have become so _______ in the world of networks that one can often be contacted even if they'd rather not be. Today we can talk, text and e-mail, not only from our _______, but from our mobile phones as well.

Most people have become _______ on digital technology simply because it has become a necessary part of life, and at this point not _______ it would make them an social outsider. _______, many jobs and careers require people to be connected. From this point of view, being reachable might feel like a _______ to those who may not want to be able to be contacted at all times.

But solitude(独处) still can be possible for those who _______ want it. Computers can be ________ and mobile phones can be turned off. Of course, the choice to be “off” and “on” has many ________ as well as disadvantages. When travelers end up ________ in mountains, and mobile phones can mean life or death, although they can also make people feel ________ and forced to answer unwanted calls.

Actually, attitudes towards digital technologies as a society ________ widely. Some find them a gift. Others consider them a curse. Whether you like it or not, it's hard to imagine what life would be like without the ________ in digital technologies.

【推荐3】Do you write your own blog? Do you often____others’ blogs on the Internet? All over the world, not only famous persons but also many students use blogs as diaries and places to share their experience and____advice or help. “I write my activities every day,___funny things or worries in my life.” Says Lali, a 16-year-old high school student at Cambridge High School in Washington.“I like putting pictures on my blog because it can make my blog more____and more people will like it. It’s a good way to____my life to the world.” She has had her blog for eight months. Students like writing blogs____they can write anything they want to, but don’t need to____any money. Once you start to write your blog, you will____that you open up a new world. But what you write down may trouble you____So, use the blog carefully____you can keep yourself away from some trouble. The blog makes everybody’s life colorful.

【推荐1】Protecting China's Giant Pandas

China's giant pandas show the achievement of the international effort to save animals that are now in danger. In television programmes we often see pandas_________funny games. Children have panda toys and beautiful cards with pictures of lovely_________in them. They often visit the giant pandas in the zoos on_________holidays and have a good time there. However , scientists are worried about the_________of giant pandas. They know only about 1,000 giant pandas remain_________today. They think the giant pandas will die out in 30 years if the present conditions are not ________.

It is reported that the giant pandas have a very________birth rate. About 115 pandas live in the zoos and research centres mainly in China, but during the past 10 years they_________only 34_________pandas that are still alive. The survival rate of giant pandas in the wild is probably the same or lower.

There are several reasons for the low_________. The main reason is_________male pandas can make love with females in a very_________season—only a few days a year. When they do have babies, females often produce two pandas , but the mother is usually not able to care for_________of them. The newborn pandas________only a few kilograms each. They are too weak to live without special care. In the zoo, scientists can help the mothers_________the young pandas, but those living in the wild do not get enough_________. It is very difficult for mother pandas to bring up their young pandas.

Conditions for the giant pandas have been worse in recent years. Pandas in China continue to_________in number. We know pandas live on bamboos. But sometimes all the bamboos in one area die. The pandas there have_________to eat and die of hunger.

Giant pandas now live in 13 separate_________areas in China. Several years ago the Chinese government and the International Wildlife Organization agreed_________a project of protecting giant pandas in the wild. We hope it could be useful.

【推荐3】In the United States, there have been no deaths from commercial airline accidents since 2013. In fact, for decades, there has been a general _________ trend in the number of accidents per departure.

Complex systems are more likely to suffer from failures, but commercial aviation (航空) seems to be a(n) ___________. Since the 1960s, U.S. commercial aviation has become significantly more complex, and yet, flying has become safer. What lies behind this remarkable trend is a handful of smart approaches to_________. Here are two of them.

1. Teach people to speak up—and to listen

A common error during airplane accidents used to be the _________ of first officers to question the captain’s poor decisions. When the captain was flying the airplane, he was hard to challenge, and his mistakes went _________.

All this began to change in the late 1970s with a training program known as Crew Resource Management (CRM). The program revolutionized the _________ not just of the cockpit (机舱) but also of the whole industry. It reframed safety as a _________ issue and put all crew members on more equal footing. It was no longer _________ to question the decisions of a superior; it was required. And CRM taught crew members the language of disagreement.

The lesson isn’t simply that people lower down in the _________ should speak up and higher-ups should listen. What CRM has shown is that people can be taught to speak up and to listen. The ability to express and embrace ____________ isn’t hardwired in our personality or cultural background; it’s a skill we can learn.

2. Learn from small failures and close calls

In 1976, the US Federal Aviation Administration created an industry-wide system to collect safety reports. The Aviation Safety Reporting System (ASRS) collects thousands of reports each month. Beyond receiving immunity (豁免权) for a mistake, it’s a point of ____________ for pilots to submit ASRS reports. They know the reports make air travel safer. The reports are stored in a searchable database that anyone can____________, and National Aeronautics and Space Administration (NASA) highlights safety trends in its monthly newsletter, Callback.

Here, too, there is a ____________ lesson. Small mistakes and near misses can be a rich source of data about what might ____________ in our system. Mistakes shouldn’t be ____________. By openly sharing stories of failures and near failures, we can treat errors as an opportunity to learn.