Since the beginning of man's life on earth, human beings have produced waste materials. When the world's population was small, this didn't cause any problems. However, in the last two centuries the population has increased rapidly, and large numbers of people have moved into towns and cities to live. Also, science and technology has produce new materials which nature alone cannot safely break down. The waste materials of modern society have begun to pollute our earth more and more each year, and the result is that pollution has now become a serious problem in almost every country of the world.

True or false.

(1) There are more and more waste materials as the population has increased rapidly in the last two centuries.

(2) The waste materials of modern society have begun to pollute our earth more and more each year.

(3) The most serious problem in almost every country of the world is population explosion.

(4) The world's population has increased rapidly only in about the last two hundred years.

(5) People fail to know how serious the pollution is.

　　In your schoolbags, most of you have a pencil, some kinds of pens, a ruler and some books. None of these things grow in the fields. They are all made in factories and invented by someone. There have not always been pencils and pens, rulers and books. Thousands of years ago, no one knew these things.

　　Who invented them? We don't always know. There have been thousands of inventions, large and small, in the human history. Some of these inventions have changed the world, such as paper, printing and radio, and we know the inventors. But we have forgotten most of the other inventors. Who invented the clock, for example, or the lock to the door? We don't know. There have been thousands of inventors and we should thank them for their clever ideas. Will you be one of them when you grow up?

True or false

(1) Pens and pencils are small inventions invented in factories.

(2) People usually know the inventors of large inventions.

(3) We don't remember most inventors.

(4) We don't know who invented paper because it is not a large invention.

(5) Every invention, large and small, come from its inventor's good ideas.

　　David has had such a terrible time this year that he should be in the Guinness book. The trouble started one morning last January when David found that his car had gone from outside his house. He hasn't seen it ever since.

　　In February David won 200,000 on the football polls. But his joy didn't last long he had forgotten to post the letter. In March he bought a new car, but he hadn't had it more than a week when someone crashed into the back of it. Two days ago David sat on a seat that someone had finished painting only minutes before. He had a lot of paint on the new trousers that he had bought only the week before.

　　August has been the worst month so far this year. David spent three days of his holiday at the airport because of strikes. When he arrived home, he discovered that someone had broken into his house. His video-recorder and television had disappeared.

　　David doesn't know what he has done to deserve all this bad luck. He just hopes his luck will change soon.

True or false.

(1) David has found his car which was stolen one night last January.

(2) David won 200,000 for the football polls, but the money was posted to others.

(3) David couldn't find his video-recorder or television because they were stolen by somebody.

(4) David bought a pair of new trousers about two weeks ago.

(5) Unlucky things happened to him for six times since last January.

　　The United States covers a large part of the north American continent. Its neighbors are Canada to the north, and Mexico to the South.

　　When this land first became a nation, after winning its independence from England, it had thirteen states. Each of the states was represented on the American flag by a star. All these states were in the eastern part of the continent. As the nation grew toward the west, new states were added and new stars appeared on the flag. For a long time, there were 48 states. In 1959, two more stars were added to the flag.

　　Indians were the first inhabitants of the land which is now the United States. Most Americans, however, are descendants of people who came from all over the world. Those who came first and in greatest mummies were mostly from England. It is for that reason that the language of the United States is English.

True or False

(1) Canada and Mexico are neighbors of the United States

(2) There were 48 states at the beginning

(3) All those states are in the western part

(4) The English were the first inhabitants of America

(5) Most Americans are descendants of people who came from India

　　Swimming is very popular in summer. People like swimming in summer because water makes people feel cool. If you like swimming but swim in a wrong place, it may not be safe. These years, quite some people died while they were enjoying themselves in the water, and most of them were students. But some people are still not careful in swimming. They often think they swim so well that nothing can happen to them in water. Summer is here again. If you go swimming in summer, don't forget that some better swimmers have died in water.

True or False.

(1) Swimming is one of the best sports in summer.

(2) It may be dangerous to swim in a wrong place.

(3) Many people died when they were enjoying themselves in the river because they couldn't swim.

(5) It is not safe for better swimmers to swim.

True or false.

(1) The teacher taught fractions last week.

(4) The last student gave a wrong answer as he didn't know about fractions.

(5) The last student was hungry, so he gave such an answer.

　　A library may be quire small or may be large. Libraries, both big and small ones, are for us to use. You may borrow books from the library. You may go to read books there.

　　There are a lot of story books and other kinds of books in the library. You can borrow them if you have a library card. If you want to borrow a book, but you can't find it, you may ask the assistant for help. When you borrow a book, the library assistant will take your card and write the date in the card. Then you may take the book home and keep it for some time. But you must give it back to the library before the date. True or false.

(1) There are many kinds of books in a library.

(2) Libraries are usually very big.

(3) If you want to borrow a book, you must ask the library assistant for help.

(4) If you want to borrow a book, you need a library card.

(5) You can keep a book as long as you like.

True or False.

(1) There is a parry at Washington School every Saturday.

(2) The students in Washington School can invite their friends and neighbors to the community carnival.

(3) The Swizzle Sisters will come to Washington School to have a barbecue.

(4) The carnival will last for six hours on April 21.

(5) At Conomunity Carnival, you can have ice-cream and cotton candies.

　　Mrs. Brown was very angry with her husband, and he was very angry with his wife. For many days they didn't speak to each other at all.

　　One evening, Mrs. Brown was very tired after she went shopping, so she went to bed soon after dinner. Of course, she didn't say anything to Mr. Brown before that. Mr. Brown did some reading in the sitting room. When he went to bed, he found a piece of paper on the small table near the bed. On the paper were the words:

　　Father,

　　Wake me up at six in the morning.

Mother

　　When Mrs. Brown woke up the next morning, it was nearly seven. She saw another. piece of paper on the small table near her bed. She took it and read these words:

　　Mother,

　　Wake up. It's six.

Father

True or false.

(1) Mr. and Mrs. Brown didn't speak to each other because they were angry.

(2) That evening Mr. Brown went to bed earlier than his wife.

(3) She wanted her husband to wake her up at six the next morning, so she left a note on the small table.

(4) The next morning Mr. Brown also put a note on the table to tell her the time.

(5) Mrs. Brown was early that morning.

Read and tell true (T) or false (F).

　　What do you like? Different people like different things. Some people like loud music. Other people don't. They like soft music. Many people like sports, but they do not all like the same sports.

　　Different people like different foods. Some people do not like meat. They eat mostly fruit and vegetables. Some people do not like potatoes or bread. They prefer rice or corn.

　　Not everyone likes the same colours. Most people have a favourite colour. Some people like bright colours. Others prefer light colours.

　　The world is an interesting place because we all like different things.

(1)A lot of people like sports.

(2)Cricket is popular in all the countries.

(3)Millions of people watch the World Cup on TV.

(4)Everyone likes eating meat, fruit and vegetables.

(5)No one likes bright colours.