The oldest stone buildings in the world are the pyramids. __66__. There are over eighty of them scattered along the banks of the Nile, some of which are different in shape from the true pyramids. The most famous of these are the “step” pyramid and “ Bent ”pyramid.

Some of the pyramids still look much the same as they must have done when they were built thousands of years ago. Most of the damage suffered by the others has been at the hands of men who were looking for treasure or, more often, for stone to use in modern buildings.__67__. These are good reasons why they can still be seen today, but perhaps the most important is that they were planned to last forever. __68__. However, there are no writings or pictures to show us how the Egyptians planned or built the pyramids themselves. __69__. Nevertheless, by examining the actual pyramids and various tools which have been found, archaeologists have formed a fairly clear picture of them.

One thing is certain: there must have been months of careful planning before they could begin to build. __70__. You may think this would have been easy with miles and miles of empty desert around, but a pyramid could not be built just anywhere. Certain rules had to be followed, and certain problems had to be overcome.

E. Many people were killed while building the pyramids.

F. They have stood for nearly 5,000 years, and it seems likely that they will

continue to stand for thousands of years yet.

G. It takes workers twenty years to build the Pyramids.

Rabbits are easy to raise. The long-eared animals are clean and quiet. They do not need a lot of room. And you do not have to spend a lot of money to feed them.   【小题1】 
One male and two females will produce in a year as many as fifty more rabbits. That is enough to provide a good supply of meat for a family. 【小题2】 
Rabbit houses are easy to make with wood and wire fencing material. They do not 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.   【小题3】  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.
 【小题4】   Feeding containers hung on the outside of the house let the rabbits eat whenever they want. They simply pull the grass and leaves through the holes in the wire fence.
Each room should have fresh water. The water containers should be heavy so the rabbits cannot turn them over.    【小题5】  
One month after mating, 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 easy to raise. The long-eared animals are clean and quiet. They do not need a lot of room. And you do not have to spend a lot of money to feed them.   1. 

One male and two females will produce in a year as many as fifty more rabbits. That is enough to provide a good supply of meat for a family. 2. 

Rabbit houses are easy to make with wood and wire fencing material. They do not 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.   3.  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.

 4.   Feeding containers hung on the outside of the house let the rabbits eat whenever they want. They simply pull the grass and leaves through the holes in the wire fence.

Each room should have fresh water. The water containers should be heavy so the rabbits cannot turn them over.    5.  

One month after mating, 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.

A．Rabbits eat mostly grass and leaves.

B．Rabbits are also valuable for their fur.

C．Or you can tie the containers to the wire.

D．Rabbit meat is high in protein and low in fat.

E. Many people enjoy keeping rabbits as friendly pets.

F. Wastes from the animals will drop through the holes.

G. With rabbits, you get a big return from a small investment.

The oldest stone buildings in the world are the pyramids. __66__. There are over eighty of them scattered along the banks of the Nile, some of which are different in shape from the true pyramids. The most famous of these are the “step” pyramid and “ Bent ”pyramid.
Some of the pyramids still look much the same as they must have done when they were built thousands of years ago. Most of the damage suffered by the others has been at the hands of men who were looking for treasure or, more often, for stone to use in modern buildings.__67__. These are good reasons why they can still be seen today, but perhaps the most important is that they were planned to last forever. __68__. However, there are no writings or pictures to show us how the Egyptians planned or built the pyramids themselves. __69__. Nevertheless, by examining the actual pyramids and various tools which have been found, archaeologists have formed a fairly clear picture of them.
One thing is certain: there must have been months of careful planning before they could begin to build. __70__. You may think this would have been easy with miles and miles of empty desert around, but a pyramid could not be built just anywhere. Certain rules had to be followed, and certain problems had to be overcome.