Many students want to find friends on the Internet as a way of practising their language skills and learning     1     different cultures. With the Internet, finding friends has been much     2     （easy）and such relationships are called key pals. However, you should take care when     3     （find）friends on the Internet:

First, look for reviews of your chosen sites     4     （know） more about other student s' experiences. Don't join service until your research     5     （do）. Then, you'd better use a nickname, rather than your real name to protect     6     （you）, and never give personal     7     （inform） to anyone, your home address, phone number and birthday       8     （include）. What's more, you should stop contact with others if you feel uncomfortable with the topics of conversation. Meanwhile, it's best to ask appropriate questions to learn someone's personal experience,     9     may help you understand     10     whole culture. Most importantly, tell your teachers, parents or even the police if a problem arises.

As is known to all, a positive parent-child relationship is     1     (benefit) to the physical and mental     2     (grow) of children, but keeping a healthy parent-child bond     3     (need) the efforts of both parties.

Parents should take the responsibility     4     (improve) their relationship with the children. What matters is spending quality time with their children,     5     tight their schedule is. For instance they can eat     6     (meal) together, go to sporting events together or watch their children's favorite TV shows together,     7     can contribute greatly to making their children feel safe and     8     (love). Children, on the other hand, should let their parents know they appreciate what their parents     9     (do) for them. If possible, they can give their parents a gift on a special day or help with housework     10     a regular basis.

No healthy parent-child relationship is without conflict. But as long as parents and children make a joint effort, they can settle the conflict and enjoy their time together.

If you always hate certain vegetables, you may be more than a picky eater. Instead, you might be a "super-taster", a person     1     bitter genes(苦味基因). Those people who have the "bitter genes" are 2.6 times more likely to eat     2     (few)vegetables than others, according to a new study     3     (present)at the annual meeting of the American Heart Association.

"We don't get the taste of food equally," said Professor Duffy an expert in the study of food taste. "it could explain some of the differences in our food     4    (prefer)."

About half of us can taste bitter and sweet, so we are not especially sensitive to bitter food. Another 25% are called "non-tasters", to     5     bitter food might actually be a bit sweeter. The rest of us are     6     (extreme)sensitive to the bitterness that some     7     (plant)develop to keep animals from eating them.

Food scientists are trying to develop ways     8     (reduce)the bitterness in vegetables, in     9     hope that we can keep super-tasters from rejecting vegetables. In fact, some vegetables we grow today     10    (be)much sweeter than before. We might also try to use various cooking methods, either by adding some fat, sweetness, strong flavors like garlic or roasting them, to improve the taste of the vegetables.

Senior citizens are the first to come to our mind when it comes to hearing loss,     1     in a recent report, hearing professionals worry teenagers will soon outnumber aging adults.

The rise in     2     (popular) of personal audio devices from iPods to smart phones has had dangerous effect on the ears of those who use them most, teenagers! A research     3     (conduct) by the World Health Organization finds that nearly 50% of teens     4     (fall) into the habit of exposing themselves to unsafe levels of sound so far.

A sound is considered unsafe when it goes beyond 85 decibels（分贝）. At that level, it takes Just 8 hours of listening over your lifetime to cause damage. The louder the sound is, the     5    (little) time it takes. Because hearing loss is     6    (typical) considered a health problem for the elderly, it’s difficult to convince already stubborn teenagers of the damage to their ears.

Young adults     7     have been exposed to loud noise over a period of time may have some hearing loss symptoms. Their ability to learn is compromised, and they may have difficulty developing social skills.

    8     an effort to help teens better protect their hearing, we suggest     9    (set) volume limits on personal audio devices. It is also good to limit the amount of time exposed to noise and to take listening breaks to give the ears     10     rest.

Chinese New Year is a celebration     1    (mark) the end of the winter season and the beginning of spring. This is why decorating with plants, fruits and blooming flowers carries special significance. They represent the earth coming back     2     life and wishes for new beginnings. Here are some of the most popular and their special meanings.

Oranges: Orange trees are more than decoration; they are a symbol of good fortune and wealth. They make great gifts and you see them many times     3    (decorate) with red envelopes and messages of good fortune. The fruits are also some of the “lucky” foods,     4     are a must during the celebrations.

Bamboo: Chinese love their “Lucky Bamboo” plants and you will see them often in their homes and offices. Certainly during the holiday period, this plant is a must. Bamboo plants and stems, used     5    (frequent) in fengshui,     6    (associate) with health, abundance and a happy home. They are easy     7    (care) for and make great presents.

Plum Blossoms(梅花): The beautiful long     8    (branch) covered with pink-colored buds (蓓蕾) make fantastic decorations. The plum trees are     9     first to flower even as snow is melting     10     a cold winter. They represent the promise of spring and a renewal of life.

Texting while walking is something that most of us are guilty of. We can’t help     1     (reply) to that message we just received. However, while     2     is fun to keep up with the latest news, we may actually be putting ourselves in danger.

I spotted a person in front of me walking very slowly and weaving (迂回行进), and I thought, ‘Is this person drunk?’ But it turned out that the person was just texting,” said Matthew Timmis.

    3     (inspire) by this, Timmis and his team set out to seek the effects of phone use on     4     (passer-by). A group of 21 volunteers     5     (ask) to walk around a certain street. The participants traveled the course a total of 12 times each, either writing     6     reading a message, making a call or with no phone at all. It took the volunteers 118 percent     7     (long) to complete the course when using a phone. They also focused     8     the path 51 percent more when they weren’t using a phone. Although there were no accidents, Timmis believes we should still be aware of     9     is going on around us. “You are not going to be able to respond to danger     10     (efficient), which increases the risk of injury,” he added.

It is     1     (challenge) to keep the balance between the progress of society and the protection of cultural sites with the     2     (develop) of economy. However, the Aswan Dam project has set an example of finding solutions     3     such problems.

In the 1950s, the Egyptian government wanted to build a new dam across the Nile.    4     the proposal met with protests from people,    5     were concerned about the destruction of cultural relics.    6     (prevent) their loss, the government turned to the United Nations for help.

Later,    7     (country) around the world worked together with the Egyptian government. Cultural sites     8     (remove) piece by piece and then put back together in another place. The project ended     9     (success), in 1980. It can be learned that with the joint efforts of the global community, we can build     10     better tomorrow.

It is hard for me to practice kindness to people as I live in a very distant area and often go many days without     1     (see) anyone, but I can practice kindness actually, with my husband and     2     (animal). I volunteer at the local animal shelter.

Several months ago, an upper breathing virus was spreading through the cats. One very young cat     3     had been operated on was especially sick. I told the shelter that I would take the cat to the animal hospital and would pay its bills and keep it for some time.

I worked with the cat for over a week, getting it     4     (take) good care of, giving it medicines, worrying about it, and loving it. It was so sick.     5     (frank), I thought it was going to die because the doctor did not give any promises. Later, I went to deal     6     my family business and we didn't go there for     7     long time. But I hoped that it could get better soon.

About a week ago, I found the cat on the side of a road with its two baby cats although it was still just a little cat     8     (it). To my great excitement, the wonder I was expecting has happened. It has overcome the     9     (ill). Well, my husband and I decided that it should     10     (give) a forever home. Now it lives quietly in my house with its two babies.

The United Kingdom, Great Britain, Britain, England- many people     1     (confuse) by what these different names mean. Getting to know at little bit about British history will help you solve the puzzle.

From the 16th century to the 19th century, Wales, Scotland and the Kingdom of Ireland were joined one by one     2     (create) the United Kingdom of Great Britain and Ireland. In the 20th century, the southern part of Ireland broke away     3     the UK,     4       (result) in the full name we have today: the United Kingdom of Great Britain and Northern, Ireland. The four countries     5     belong to the UK work together in some areas.     6    , they also have some differences. The United Kingdom has a long and interesting history to explore. Almost everywhere you go in the UK, you will be surrounded by     7     (evident) of four different groups of people who     8     (take) over at different times throughout history.

There is so much more to learn about     9     interesting history and culture of the United Kingdom. Studying the history of the country will make your visit much more     10     (enjoy).