题目内容
The soil that had been converted to ____ flowers was on its way ______ .
| A．grow; off | B．growing; out | C．grow; out | D．growing; by |
B
解析
Rabbits are easy to raise. They are clean and quiet. They don’t need a lot of room. And it costs a small amount of money to feed them, but you can get a big return.
One male and two females will produce as many as fifty more rabbits in a year. That is enough to provide enough meat for a family. Rabbit meat is high in protein and low in fat.
You don’t have to be a farmer to raise rabbits. You can raise them in the city.
Rabbit houses are easy to make with wood and wire. They don’t have to be very big. But each rabbit must have its own little room in the house. This is very important. Each room should be about 75 centimeters wide, 60 centimeters high and one meter deep.
Fencing is used for the sides and floor of the rabbit house. The holes in the wire fencing should be about one centimeter square. Waste from the animals will drop through the holes. This keeps the rabbit house clean and dry.
Rabbits need a lot of fresh air and sunlight. Cover the sides of the rabbit house only to protect it from rain.
Rabbits eat mostly grass and leaves. Hang feeding containers on the outside of the house to let the rabbits eat whenever they want. They simply pull the grass and leaves through the holes in the fence.
Each room should have fresh water. The water containers should be heavy so the rabbit cannot turn them over. Or you can tie the containers to the fence.
One month after mating(交配), female rabbits give birth to about eight babies. In two months, a baby rabbit should weigh about two kilograms. This is big enough to make a meal for a small family.
Rabbits are also valuable for their fur. It takes time, skill and money to prepare the fur and skin for use. If you have only a few rabbits, it probably would be best to let a tanner(制革工) prepare the fur for you. Skill is also needed to remove the fur from the rabbit.
But rabbits do not have to be dead to be valuable. Many people enjoy keeping rabbits as friendly pets. And rabbit waste makes an excellent fertilizer(肥料). It can be mixed directly into the soil to improve the growth of vegetables, trees, and flowering plants.
【小题1】The text is written mainly_______.
| A．to explain why rabbits are clean and quiet | B．to let people know more about rabbits |
| C．to tell readers how to raise rabbits | D．to introduce a small friendly animal pet |
| A．Holes are needed for waste to drop through. |
| B．Each rabbit must be given a separate room. |
| C．Each room must have clean water every day. |
| D．Feeding containers are hung on the fence. |
| A．Because the holes let in sunlight. |
| B．Because rabbits like these holes. |
| C．Because rabbits get food from them. |
| D．Because waste of rabbits drops through the holes. |
| A．You don’t have to kill rabbits to make more money. |
| B．Rabbits cannot be sold to make money when they are alive. |
| C．Rabbits are more valuable when they are alive. |
| D．Rabbits have to be killed to be more valuable. |
There are some places in the world where great cities once stood. There were trees, gardens and grass. But now these cities have gone and the places are like deserts. Scientists began to study this land to find out what happened. Many of them believed the land died when the trees were cut down.
Trees help other plants grow and help hold the soil in place. They keep the soil from blowing away. The leaves of trees on the ground keep rainwater from running off. Trees near farms protect growing plants from strong winds.
Once there were hundreds of farms in the southwestern United States. Then the farms turned into fields of dry dust. Trees might have saved these farms. But few trees grow in the dry southwest now.
Now we try to save trees. In many places, when a tree is cut down , a new tree is planted in its place . We do not want the land to die.
【小题1】Places where great cities once stood are now like ______ .
| A．farms | B．gardens | C．deserts | D．fields |
| A．Trees can keep other plants green |
| B．Trees can help other plants grow . |
| C．Trees can help the land grow . |
| D．Trees can keep other plants in place . |
| A．Trees let the rainwater run off . |
| B．All the farms in the United States have turned into deserts . |
| C．There aren’t any trees in the dry southwest now . |
| D．Land will die if there are no trees . |
| A．that farms are better than cities |
| B．how farms turned into deserts |
| C．that trees are important to the land |
| D．how people save trees |
| A．trees can blow soil away |
| B．man should protect the land |
| C．trees grow only in deserts |
| D．trees die easily |
Scientists are trying to make the deserts into good land again．They want to bring water to the deserts，so people can live and grow food．They are learning a lot about the deserts．But more and more of the earth is becoming desert all the time．Scientists may not be able to change the desert in time．
Why is more and more land becoming desert？Scientists think that people make deserts．People are doing bad things to the earth．
Some places on the earth don’t get much rain． But they still don’t become deserts． This is because some green plants are growing there． Small green plants and grass are very important to dry places． Plants don’t let the sun make the earth even drier． Plants do not let the wind blow the dirt away． When a bit of rain falls， the plants hold the water． Without plants， the land can become desert more easily．
【小题1】Deserts ＿＿＿＿＿＿＿＿ ．
| A．never have any plants or animals in them |
| B．can all be turned into good land before long |
| C．are becoming smaller and smaller |
| D．get very little rain |
| A．they don’t let the sun make the earth even drier |
| B．they don’t let the wind blow the soil away |
| C．they hold water |
| D．All of the above． |
| A．plants can’t grow there |
| B．there is not enough rain |
| C．people haven’t done what scientists wish them to do |
| D．scientists know little about the deserts |
| A．Earthquakes make deserts. | B．Wind makes deserts. |
| C． Lack of water makes deserts. | D．People make deserts． |