Many years ago，there were lots of trees on earth，because summer lasted a whole year．What was the forest like? It is not difficult to see，because parts of that ancient（古老的）forest still stand．It is the rainforest．Here，even in a sunny day water drops through the leaves．

Today's largest rainforest is in South America．It covers about a million square miles．All the trees are very tall；the young trees are nearly sixty feet high．But it is not easy for some to grow higher because very little sunlight leaches them．

Many trees are about 60 to 120 feet high．Some are even taller．The tallest trees can be 200 feet high．

In this forest of tall trees，plant life is rich，animal life is rich，too．At different heights live different animals and many different noises can let you know where they are．

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1．There were lots of trees on earth many years ago because of the _________．

A．cold weather          B．largest forest          C．warm weather               D．rainforest

2．A rainforest has enough _________．

A．trees                    B．rainfall（雨量）      C．forest                    D．leaves

3．There is rainforest _________．

A．only in South America                              B．only in the old days

C．in some parts of the world                          D．below the sea

4．Young trees share little sunlight because _________．

A．tall trees are above them                           B．there isn't enough sunlight

C．they needn't much sunlight                          D．it is summer the whole year

5．You can always find different animals by _________．

A．their colors                                             B．the noises they make

C．climbing the trees                                       D．watching them carefully

　　Mozart（莫扎特）was born on January 27, 1756 and died on December 5, 1791. When he was three, he often had lessons with his elder sister. His father took him through many different countries, and he played music for lots of people there. But some people didn't believe that a little boy could write such beautiful music. They asked him to stay in a room all by himself for a week and somebody watched the room all the time. In the week, he finished a new piece of music. After that, people believed that he could write beautiful music.

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During the day we work and play; at night we sleep. Our bodies rest while we sleep. In the morning we are ready to work and play again. While we are asleep our bodies grow most. Children usually need more sleep. We can get our lessons better and we feel better too, when we have plenty of rest. Boys and girls need ten hours of sleep every night when they are eight or nine years old. Our bodies need lots of air when we sleep. If we do not get enough fresh（新鮮的）air we’ll feel tired when we wake up. While in bed we must not cover our heads. If we do, our lungs（肺）will not get enough fresh air. If we open our windows at night we can have plenty of fresh air. Cool air is better then warm air. Boys and girls must get enough sleep if they want to grow and be strong.

1. Our bodies grow most while we are___________.

A．eating            B．playing            C．sleeping          D．waking

2. Which is the best air for us?

A．fresh air          B．Cool air           C．Warm air          D．Dry air

3. Too little sleep makes us_________.

A．nappy            B．hungry            C．tired             D．grow

4.How much sleep should boys and girls of nine years old have every night?

A．Eight hours                            B．Nine hours

C．Ten hours                             D．Seven hours

5.What do the lungs need most?

A．Fresh air          B．Food             C．Rest              D．Exercise

　　___1___all the things we eat and drink, water is the ___2___ important. Not ___3___ person understands this, but it is quite ___4___. The human body can go without food for a long time, __5___ without water we'll be ill or die within two or three days.

　　Many people do not know ___6___ water the human body needs to work and they don't drink ___7___ water. Most people drink only when they ___8___ thirsty. But in fact（實際上）they often need ___9___ water, especially when they have done sports.

　　A man's body is made up of（由……組成）65 to 75 percent（百分比）of water. If we do not have enough water, we feel tired and ___10___ ill.