My favourite scene in the book is when everyone thinks Tom is dead. He decides to go to his town funeral. He hides and watches for a time and then suddenly he appears. Everyone is surprised to see him but they’re also pleased to see him alive.

Tom is the hero of the story, but there are another important characters. Huck is an outsider and everyone is afraid of him . Becky is pretty with fair hair, Joe is Tom’s best friend and Injun Joe is the bad man of the story.

The theme of the story is about children growing up. It describes how strangers are seen in small towns of America. Finally, it talks about freedom, social rules and how people are punished(惩罚)for bad behavior.

Why do I think The Adventure of Tom Sawyer is a great book? Mark Twain wrote the story in 1876, but it’s still read and loved by people all over the world today. And although it’s only a story. Twain wrote it in the everyday English of the southern states of America in the 19^thcentury, so it sounds very real. Today it’s thought to be one of the greatest books in American literature. Go on--read it! I know you’ll enjoy it, too.

If you look at a house from far away, you might see some of its features, such as doors and windows. If you go nearer to the house, you might find that it is made of bricks. When you look closely, you can see that the house is made of many bricks.

The bricks are the building blocks (块) of the house.

Your body has building blocks too. They’re called cells. The bodies of plants and animals are very different from one another, but they all have one thing in common—all are made up of cells. There are many different kinds of cells in your body. Each kind of cell has its own job, such as muscle (肌肉) cells, bone cells, and blood cells.

Cells work together to keep your body alive. A group of similar cells that work together to do the same job form a tissue (组织). The human body is   made of different kinds of tissues. Muscle tissue and nerve (神经) tissue are two kinds of tissues.

An organ is a group of different kinds of tissues that work together to carry out a certain job. Each kind of organ in your body has a special job to do. Some examples of organs are your stomach, heart and skin.

Like cells and tissues, organs work in groups too. A group of organs that work together to do a certain job is called an organ system (系统). All the organ systems in your body work together to keep you alive. These systems can be put into the two groups—Support and Control Systems as well as Energy and Transport Systems.

How could we tell time if there were no watches or clocks anywhere in the world?

The sun was probably the world’s first “clock”, except in the far north, where the Eskimos(爱斯基摩人) live. There, it’s dark most of the winter, and light most of the summer. But in most of the world, people have used the sun for a clock. Even today, if you don’t have a clock, you still know that when the sun shines, its day, and when it’s dark, it’s night. The sun can also tell you if it’s morning, noon, or afternoon.

People who live near the sea can tell time from the tides. In the daytime, for about six hours, the water rises higher and higher on the beach. And then it goes down and down for about six hours. The same thing happens again at night. There are two high tides and two low tides every 24 hours.

Seamen on a ship learn how to tell time by looking at the moon and the stars. The whole sky is their clock.

In some places in the world the wind comes up at about the same time every day or changes direction or stops blowing. In these places the wind can be the clock.

A sand clock is an even better clock. If you had fine dry sand in a glass shaped like the one in the picture, you would have what is called an hourglass. The sand in the hourglass goes from the top part to the bottom part in exactly one hour. When the hourglass is turned over, the sand will take another hour to go back again.