Without plant, people could not live. We eat plants. We breathe the oxygen（氧气）that plants produce. And we need plants for another reason: we need them for their beauty.

Imagine a world with no plants. Imagine no flowers with their sweet smells, their beautiful colors and their lovely shapes. Imagine when the wind blows, not being able to hear the leaves in the trees or watch the branches sway（摇摆）from side to side.

Everywhere people need the beauty of plants. That is why we have parks full of trees and flowers. That is why people always try to design houses with room for some grass and a garden.

Do you talk to your plants? Do you give them love and attention?

Peter Tompkins and Christopher Bird, writers of a book called THE SECRET LIFE OF PLANTS, tell of an experiment in which two seeds were planted in different places. While the plants were growing, one plant was given love and hopeful ideas. The other plant was given only hopeless ideas. After six months, the loved plant was bigger. Under the earth it had more and longer roots; above the earth, it had a thicker stem (茎) and more leaves.

1.According to the passage, which of the following is right?

A．If there are no flowers, there will be no sweet smells.

B．Without plants, we can’t hear the wind.

C．We plant trees to watch the branches sway from side to side.

D．We need plants not only for food and oxygen but also for their beauty.

2.In the experiment, the plants were________.

A．of different kinds                       B．talked to in two different ways

C．both given love and attention              D．grown in the same place

3.At the end of six months,________.

A．one plant had longer roots than the other and had a thicker stem

B．one plant had longer roots while the other had a thicker stem

C．the plants were of the same size

D．one plant had a thicker stem while the other plant had more leaves

4.The experiment has proved（证明） that________-.

A．we should talk to plants and give them love

B．without plants people could not live

C．we should grow as many plants as possible

D．plants need plenty of water, sunshine and attention

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两处为多余选项。

To extinguish （熄灭） different kinds of fires, several types of fire extinguishers have

been invented．   1____. Most portable （手提式的） kinds operate for less than a minute,

so they are useful only on small fires．The law requires ships, trains, buses and planes to carry

extinguishers．

Since fuel, oxygen （氧气） and heat must be present in order for fire to exist, one or more of these things must be removed or reduced to extinguish a fire．   2_____． The cooling method is the most common way to put out a fire．Water is the best cooling material because it is low in cost and easy to get．

____3____. This is usually done by covering the fire with sand, steam or some other things．A blanket may be used do cover a small fire．

A third method is called separation．_____4______．

The method that is used to put out a fire depends upon the type of fire．Fires have been grouped in three classes．____5____. These materials usually help keep the fire on．Such fires can be stopped most readily by cooling with water．

    A．Fire extinguishers should be available everywhere in our life．

    B．They must be ready for immediate use when fire breaks out．

    C．Where a fire breaks out, there will surely be unavoidable damage．

    D．Fires in wood, paper, cloth and the like are called Class A fires．

    E．Another method of extinguishing fire is by cutting off the oxygen．

    F．If the heat is reduced by cooling the material below a certain temperature, the fire goes out．

    G．It includes removing the fuel, or material easy to burn, from a fire, so that it can find no fuel.

Without plant, people could not live. We eat plants. We breathe the oxygen（氧气）that plants produce. And we need plants for another reason: we need them for their beauty.
Imagine a world with no plants. Imagine no flowers with their sweet smells, their beautiful colors and their lovely shapes. Imagine when the wind blows, not being able to hear the leaves in the trees or watch the branches sway（摇摆）from side to side.
Everywhere people need the beauty of plants. That is why we have parks full of trees and flowers. That is why people always try to design houses with room for some grass and a garden.
Do you talk to your plants? Do you give them love and attention?
Peter Tompkins and Christopher Bird, writers of a book called THE SECRET LIFE OF PLANTS, tell of an experiment in which two seeds were planted in different places. While the plants were growing, one plant was given love and hopeful ideas. The other plant was given only hopeless ideas. After six months, the loved plant was bigger. Under the earth it had more and longer roots; above the earth, it had a thicker stem (茎) and more leaves.
【小题1】According to the passage, which of the following is right?

There are two kinds of physical activity which require special training. The first demands exact careful movements of the muscles（肌肉）. This kind of activity must be strictly controlled because even a slight movement in the wrong direction will lead a mistake. To type quickly, for example, a person needs training; the slightest movement of a finger in the wrong direction may cause a spelling mistake. A dancer who has to dance on the point of her shoes or turn around on one foot must be trained for a long period of time before she can sense her own center and balance herself. You may have seen a girl walking on a rope across an empty space, which, too, requires a lot of practice.

The second kind of physical activity needs greater strength or extra effort. Most of us get tired if we try to run half a mile without stopping, but a specially-trained person can do this without much effort. Three years ago, some scientists carried out experiments, which produced meaningful and unexpected results. They wanted to find out whether a certain amount of physical exercise would injure those suffering from heart problems. They selected some male patients and trained them in continuous bicycle riding. They were surprised to find that the harmful effect of a given amount of physical effort was actually less on the hearts of these trained patients than on those of the patients who were not similarly trained. This is important because it shows that regular physical exercise enables us to make better use of the oxygen（氧气）we breathe in and that this training, in fact, reduces the amount of work our hearts do. Many tasks which are hard for untrained people are not hard at all for trained people.

72．The first kind of physical activity must be strictly controlled because _________.

      A．a mistake in the wrong direction is dangerous to the fingers

       B．a wrong movement in a direction will cause no mistakes

       C．a movement in the wrong direction will cause a mistake

       D．a slight movement of a finger will lead to a mistake

73．What must a dancer do before she can balance herself?

      A．She must dance on the point of her shoes.

       B．She must receive long-time training.

       C．She must turn around on one foot.

       D．She must perform again and again.

74．The experiments done by some scientists showed that ________.

      A．some male patients were asked to ride bicycles regularly in the experiments

       B．the physical exercise had more harmful effect on the hearts of the untrained patients

       C．the physical exercise was harmless to the male patients with heart trouble

       D．the physical exercise could be helpful for the patients to take in more oxygen

75．What would be the best title for this text?

      A．Training Our Bodies      B．Physical Activities

       C．Movement Training       D．Extra Body Effort

Without plant, people could not live. We eat plants. We breathe the oxygen（氧气）that plants produce. And we need plants for another reason: we need them for their beauty.

Imagine a world with no plants. Imagine no flowers with their sweet smells, their beautiful colors and their lovely shapes. Imagine when the wind blows, not being able to hear the leaves in the trees or watch the branches sway（摇摆）from side to side.

Everywhere people need the beauty of plants. That is why we have parks full of trees and flowers. That is why people always try to design houses with room for some grass and a garden.

Do you talk to your plants? Do you give them love and attention?

Peter Tompkins and Christopher Bird, writers of a book called THE SECRET LIFE OF PLANTS, tell of an experiment in which two seeds were planted in different places. While the plants were growing, one plant was given love and hopeful ideas. The other plant was given only hopeless ideas. After six months, the loved plant was bigger. Under the earth it had more and longer roots; above the earth, it had a thicker stem (茎) and more leaves.

1.According to the passage, which of the following is right?

A．If there are no flowers, there will be no sweet smells.

B．Without plants, we can’t hear the wind.

C．We need plants not only for food and oxygen but also for their beauty.

D．We plant trees to watch the branches sway from side to side.

2.In the experiment, the plants were________.

A．of different kinds                       B．Talked to in two different ways

C．both given love and attention              D．grown in the same place

3.At the end of six months,________.

A．one plant had longer roots than the other and had a thicker stem

B．one plant had longer roots while the other had a thicker stem

C．the plants were of the same size

D．one plant had a thicker stem while the other plant had more leaves

4.The experiment has proved（证明） that________-.      

A．without plants people could not live

B．we should talk to plants and give them love

C．we should grow as many plants as possible

D．plants need plenty of water, sunshine and attention