When I was young, I read many kinds of books, including fairy tales. In those     1    (book), heroes were handsome and heroines were beautiful. I, therefore, believed I had to be beautiful if I     2     (want)to become a great person.

As I grew up, I began to realize outer beauty was not so     3     (importance)to make someone excellent. I remember a friend of     4     (my). She believed that she could do everything she wanted    5    she was so beautiful, but she lost her friends one by one. What she learned was that inner beauty is more important than outer beauty.

Whenever 1 see TV advertisement, I feel they make us believe beauty     6     (be)very important. Although we say inner beauty is more valuable, we often look for plastic surgery(整形手术)     7     (make)us more beautiful. There seems to be a boom in plastic surgery. It is surprising to realize the number of people     8    try it is increasing day by day.

We know goodlooking guys usually get     9     (high)scores on job interviews than others. So, what is real beauty? I want to say that what does make one look like a     10     (real)beautiful person is inner beauty.

December 16, 2013 was my birthday. It was the day     1     my best friend left me. I remember it as if it were yesterday. It was also our Christmas concert.     2    (offer) a job in Colorado, my friend’s father had to leave our city. And his family had to go with     3    (he). Mr. Escalante, our old headmaster, brought her whole family up on the stage, and they made a big     4    (announce) about how they     5    (leave). After the concert ended, I was in a total mess. I felt as if I had made something torn out of my body that could never be     6    (full) replaced. My best friend’s name was Hannah Zona.

Ever since I was a little girl, my family was always with the Zonas. We would go to the fair, did anything you could think of.     7    (live) so close     8     each other, we could always go to each other’s houses after school.     9     she is about 7 years older than me, we act like we are sisters.     10    (word) can’t describe how much I miss her. When she comes back to California, it’s like we were never apart. Hannah Zona is the best friend you could ask for. No one could ever replace her and the love I have for her.

New research suggests that Benjamin Franklin’s famous experiment with lightning may be fiction instead     1     fact.

During a storm in 1752, Franklin raised a kite with a piece of string     2     (tie) to it. A metal key was attached to the string. A flash of lightning hit the kite, and electricity     3     (conduct) through the string to the key. Franklin then touched the key with his finger and got an electric shock.

For many years, schools     4     (teach) the story of Franklin’s lightning experiment.     5    , neither the story nor the details of the experiment     6     (be) entirely true. The detail about the string and the key is true. But scientists all agree that if Franklin had     7     (actual) touched the key, he would certainly have died from the electric shock.

Scientists often question accepted ideas because they want to establish the facts. Some have even questioned the story about the apple     8     fell on Newton’s head and led him     9     (come) up with his theory of gravity.

Admittedly, fiction is often     10     (interesting) than the truth. But in science, facts should be proved by experiments and research, and we should not always believe everything we read or hear—even if it is a great story.

Many animals and humans recognize their food because they see it. You can also use other senses when you choose your food. You may like it because it smells good. You may dislike some types of food because they do not look or taste very nice.

Some animals spend     1     (they) lives eating only one type of food even when     2     (give) the choice. The giant panda eats only one special type of bamboo. A kind of white butterfly will stay on the     3     (leaf) of a cabbage, even though there are plenty of other vegetables     4     the garden. However, most animals have     5     more varied（多样化）diet. The bear eats fruits and fish. The fox eats small animals, birds and fruits. The diets of these animals are different     6     (depend) on the season.

Humans often eat food not because it is good for us     7     because we like it. In countries such as France and Britain, people eat food with too much sugar,    8     is bad for their health. Eating too much red meat and animal products is     9     (harm) to health. Choosing the right food, therefore,    10     (become) an area of study in modern life in recent years.