“Don’t judge a book by its cover,” the old saying goes. Unfortunately, as a teenager, that is often exactly what you do to     1    (you). Standards of beauty in the media can have a big influence     2     what you think of your physical appearance. These standards are simply     3    (possible) for most of the population to live up to. If you have friends     4     are good-looking or have a great fashion sense, it can feel like you are living in their shadow. The external influences are always present,     5     there are certainly ways to deal with them. First of all, be careful not to follow popular beauty standards     6    (blind). Another tip is to recognize that you are unique and talk about your feelings with someone you trust.     7    (hear) how much they value you can help you feel comfortable in your own skin. Finally,     8     is a good idea to try to direct your attention away from negative thoughts.     9    (achieve) this, you should do something you enjoy. You may often judge yourself by what is on the outside, not on the inside. However, like a book, your contents are much     10    (important) than your cover.

Jennifer Jones, a 15-year-old teenage girl, fainted in her PE class. Then she     1    (rush) to hospital. She was found to have dangerously low blood sugar     2    (level) for skipping meals. Fortunately, she was treated     3    (immediate) and soon recovered.

She thought skipping meals would be     4     simple way to reach her target weight. She hadn’t eaten breakfast for the last few months. She had trouble     5    (concentrate) in class. In addition, she didn’t follow her friend’s warning that skipping meals was unhealthy.

The unhealthy weight-loss habits have become common among teenagers. In a society     6     being thin is often seen as being beautiful, teenagers sometimes turn     7     extreme methods to slim down quickly. A health expert     8    (suggest) that they should have a healthy balanced diet. She also holds the view that they should keep regular hours and get plenty of exercise     9    (stay) energetic and fit. That’s because living well is the safest and     10    (effective) way to get into shape.

Nowadays, there is often a lack of understanding between parents and children. Children always complain that their parents are out of date, while parents can’t agree with all     1     their children say and do. Thus, a big generation gap is formed.

    2     gap remains wide for many reasons. Children want to be free    3     (choose) their own friends, select their own classes in school, plan their own future, and     4     (usual) run their own life in a more independent way than many parents allow. Also, young children wish to be understood by their parents, but most parents don’t quite understand their children. They regard it     5     their duty to teach their children traditional beliefs. They want them to be obedient (听话的) and do well in school. Therefore, misunderstandings often result from parents’ interfering (干预) in children’s daily    6     (activity).

We should not be     7     (amaze) at the generation gap, for it is quite natural in the    8     (develop) of society. The world is changing, in which everything    9     (keep) changing, generations of human beings included. And changes lead to progress. In    10     (I) opinion, most problems between parents and children can be solved by joint efforts of both sides as long as they enhance common understanding.

You’re walking in the street and a thought     1     (occur) to you: “I should check my phone.” Then your eyes remain glued to the screen, even when you walk across the street.

Most of us do this kind of distracted (注意力分散的) walking in our daily life,     2     has become a growing problem around the globe.  

In fact, walking is not as easy as we think. We must focus     3     many things at the same time     4     (walk) safely in a straight line. When we’re busy     5     (use) the phone, we will walk slower, make poor decisions, and won’t notice what is going on around us. As a result, we may walk into walls, fall down stairs or     6     (hit) by cars.  

Why do we take     7     risk? Scientists say it might be a form of addictive (使人上瘾的)     8     (behave). People are, by nature, information-seeking creatures. When we check our phones     9     (regular), we are actually looking for more information to make our brains feel satisfied.  

Then how can we control our use of phones? Experts recommend exercises in self-control. They say reducing access to the phone can be     10     (help). After all, safety comes first.

One of the biggest challenges     1     (face) students today is how to concentrate on studies. Almost all of them are struggling for their concentration power. In an age     2     mobile phones and the Internet are eating up most of our time and energy, one can understand how difficult it is to focus attention and energy on studies.

One of the most important     3     (factor) for developing concentration on a task, whether it is study or anything else,     4     (be) to develop an interest in that task. We are able to focus     5     (easy). If you ever want to concentrate on anything and studies are no     6     (except), you need     7     (ensure) that the environment around you is distraction (注意力分散) free. So the question is not how to concentrate on studies     8     how to avoid distractions that have swallowed up mankind today. The only way to guarantee a distraction-free environment is by     9     (get) rid of all the unnecessary things around you, including the electronic gadgets (小器具)     10     mobile phones.

Tibetan antelopes live on the plains of Tibet, Xinjiang, and Qinghai.     1     (watch) them move slowly across the green grass, I’m struck by their     2    (beautiful). At the same time, I’m also reminded     3    the danger they are in. They    4    (hunt), illegally, for their valuable fur. Zhaxi, a villager from Changtang, works at the Changtang National Nature Reserve. “We’re not trying to save the animals,” he says. “    5     (actual), we’re trying to save ourselves.”

The 1980s and 1990s were bad times for the Tibetan antelope. Hunters were shooting antelopes     6    (make) profits. Their habitats were becoming     7     (small) as new roads and railways were built. In order     8     (save) them, the Chinese government placed them under national protection. The measures were     9    (effect). The antelope population     10     (recover) and in June, 2015, the Tibetan antelope was removed from the endangered species list.