Water is very important to living things．Without water there can be no life on the earth．All animals and plants need water．Man also needs water．We need water to drink．to cool our food and to clean ourselves．Water is needed in offices，factories and schools．

    Water is needed everywhere．There is water in seas；rivers and lakes ,Water is found almost everywhere．Even in the driest part of the world．there is some water in the air．You cannot see or feel it when it is a part of the air．The water in the seas，rivers and lakes is a liquid。The water in the air is a gas，and we call it water vapor．

    Clouds are made of water．They may be made of very small drops of water．They may also be made of snow crystals(結(jié)晶體)．Snow crystals are very，very small crystals of ice．Ice is frozen water．It is a solid．There can be snow and ice everywhere in winter．

(   )4．Where Can we find water?

A．We can find water when it turns into vapor．

B．Water can be found almost everywhere

C．We can see water in deserts here and there．

 D．Water is only in seas and rivers．

(   )5．We must protect water resources because        ．

A．crops need water        B．a(chǎn)ll living things need water

C．a(chǎn)ll animals need water    D．a(chǎn)ll plants need water

Plant scientists consider them as fruit. Most other people think of them as vegetables. Whatever you call tomatoes, there are many different kinds of this popular and healthy food.
There are two groups of the plants. Small tomato plants grow to about one meter. They can be planted rather close together. Some short kinds do not require special care and are often gotten crop by machines. Large tomato plants can grow over two meters tall. They also produce larger fruits.
People who grow only a few plants can place wire cages around each one. The cage can be made of wire fence material. The cage helps the plant grow taller and produce a better crop.
Tomatoes often need extra calcium (Ca), or the fruits may be ruined. Add lime to the soil can solve this problem. Dry lands may also ruin the fruits. Tomatoes need water regularly. The soil should never dry out completely. Dried grass or leaves placed around the plant can help hold water in the soil and stop the growth of unwanted plants.
Tomatoes are native to South America. The tomato is a member of the potato family. The leaves of the plant are poisonous, like the leaves of its relatives. Before the 18th century, people grew tomatoes only as pretty plants. They called the bright red fruit a “l(fā)ove apple”, but would not eat it.
【小題1】Which of the following is right about the small tomato plants?
A. They can grow to about 2 meters.    
B. They can’t be planted close together.
C. Some of them don’t require special care.
【小題2】People place wire cages around the plant in order to ___________.
A. protect the plant from being taken by others.
B. help the plant grow taller and produce a better crop
C. keep the plant from being eaten by animals
【小題3】The underlined word “ruin” probably means “___________”.
A. grow     B. destroy      C. stop    
【小題4】 People often give tomatoes extra calcium by ___________.
A. adding lime to the soil          B. watering the plant regularly
C. putting dried grass around the plant
【小題5】What can we learn from the passage?
A. Tomatoes are native to North America.
B. The leaves of the plant can also be eaten.
C. Americans began to eat tomatoes from the 18th century.