题目内容
Of the thousands of different kinds of animals that exist in the world man has learned to make friends with an enormous number. Some are pets, and offer him companionship; some give protection, and some do hard work which man cannot do for himself. Dogs, which serve man in all three capacities, are found in various species in all countries of the world. The Husky can live in the cold polar regions, and the Saluki is at home in the hottest parts of Central Africa. The inhabitants of certain countries are dependent for their very lives on the camel. In the West Indies the little donkey, strong and sure-footed, carrying heavy loads even in mountainious places, is a familiar sight.
Trained and tamed for many generations, domestic animals(牲畜)are not accustomed to roaming(到处走动)in search of food and shelter. They look to their masters to provide for their needs, and as long as these are supplied, they are content to do what their masters require.
All domestic animals need proper food. It must be suitable for them, sufficient in quantity, fresh and clean. Some people feed a pet dog or cat on odds and ends of table scraps(剩饭), and then wonder why the animal seems tired and dull. The quantity of food depends on the size of the animal and the amount of exercise it takes. Overfeeding is as bad as underfeeding. Containers for food and water must be washed regularly if the animal is to maintain good health.
Even well cared for animals may sometimes fall ill. If this happens, the wise master seeks the best advice he can get. All sorts of medicines and treatments are available for sick animals, and in some countries organizations exist to provide them free or at a cheap price. Useful, friendly, hardworking animals deserve to have some time, money and attention spent on their health.
71. What main idea does the author want to convey in the first paragraph?
A. There exists thousands of species of animals in the world.
B. Man came to establish a close relationship with a number of animals.
C. In some regions a donkey seems to be a very useful beast.
D. An animal will be useless unless domesticated.
72. When an animal doesn’t get enough food, it will probably .
A. refuse to obey its master B. immediately fall ill
C. require its master to offer some food D. seek for food on its own
73. Which of the following is NOT true of dogs according to the passage?
A. They can act as friends, guards, and servants to man.
B. They have great adaptation for the environment.
C. There live a great variety of species of dogs on the globe.
D. The Husky and the Saluki are the strongest species ever known in the world.
74. To keep a domestic animal physically fit, its owner is advised .
A. not to hesitate to spend enormous amount of money on it
B. to pay attention to its proper feeding
C. not to allow it to take excessive amounts of exercise
D. to join some sort of pet-keeping organizations
75. Which of the following would be the best title for this passage?
A. Domesticated Animals—Man’s Best Friends
B. Proper Diet—the Road to Health
C. The Advantages of Raising Domestic Animals
D. Some Tips on Pet-keeping
BADBA
Plastic is one of the most important technological discoveries of the 20th century. However, it may soon be replaced. The new development- liquid wood- can replace plastics in all branches of modern-day industries.
Plastic as a material enjoys the biggest demand in the modern world, but it does have a number of drawbacks. First and foremost, plastic isn’t recyclable. Secondly, it contains toxins (毒物) helping develop cancerous diseases. Finally, it’s made of oil and oil reserves aren’t endless.
The liquid wood technology is likely to replace plastic and providing mankind with new materials for many years ahead. Norbert Eisenfreich, a senior researcher at the Faunhofer Institute for Chemical Technology in Germany (ICT), said that arboform, the new material, is made of lignin(木素质), which can be obtained from soft tissues of wood. Once mixed with several other matenals, it turns into solid and non-toxic alternative for plastics.
ICT team leader Emilia Regina Inone-Kauffmann said the wood-working industry separates wood into three basic components, including lignin. Lignin isn’t used for the production of paper. Specialists of ICT mixed lignin with several natural materials and thus invented the material which could be melted and molded (铸型).
When solid, arboform looks like plastic and possesses tho qualitie of polished wood. It can be used for the production of any items. Arboform is already used for the production of car parts which require extra strength. In addition, liquid wood can be recycled repeatedly. The material preserved all of its qualities even if it’s reprocessed ten times.
However, the new invention doesn’t enjoy an extensive use due to the high content of sulfur(硫) in it. German researchers are sure to reduce the amount of sulfur by 90% very soon to make arboform usable for home needs.
【小题1】According to the passage, plastic .
A.helps us to reduce the use of petrol |
B.helps to protect our environment in some way |
C.does harm to our society in some way |
D.has been replaced by the newly discovered material |
A.It is easier made from natural oil. |
B.It is more widely used in household |
C.It is recyclable and friendly to environment. |
D.It contains no poisonous materials. |
A.lignin or arboform | B.soft tissues of wood |
C.plastics or wood | D.mixture of several materials |
A.the material’s extensive use | B.the content of sulfur in arboform |
C.the production cost of arboform | D.the qualities of liquid wood |
A.introduce liquid wood which will replace plastic |
B.show readers how to produce arboform |
C.advertise the new material-arboform |
D.advertise new products made of arboform |
Plastic is one of the most important technological discoveries of the 20th century. However, it may soon be replaced. The new development- liquid wood- can replace plastics in all branches of modern-day industries.
Plastic as a material enjoys the biggest demand in the modern world, but it does have a number of drawbacks. First and foremost, plastic isn’t recyclable. Secondly, it contains toxins (毒物) helping develop cancerous diseases. Finally, it’s made of oil and oil reserves aren’t endless.
The liquid wood technology is likely to replace plastic and providing mankind with new materials for many years ahead. Norbert Eisenfreich, a senior researcher at the Faunhofer Institute for Chemical Technology in Germany (ICT), said that arboform, the new material, is made of lignin(木素质), which can be obtained from soft tissues of wood. Once mixed with several other matenals, it turns into solid and non-toxic alternative for plastics.
ICT team leader Emilia Regina Inone-Kauffmann said the wood-working industry separates wood into three basic components, including lignin. Lignin isn’t used for the production of paper. Specialists of ICT mixed lignin with several natural materials and thus invented the material which could be melted and molded (铸型).
When solid, arboform looks like plastic and possesses tho qualitie of polished wood. It can be used for the production of any items. Arboform is already used for the production of car parts which require extra strength. In addition, liquid wood can be recycled repeatedly. The material preserved all of its qualities even if it’s reprocessed ten times.
However, the new invention doesn’t enjoy an extensive use due to the high content of sulfur(硫) in it. German researchers are sure to reduce the amount of sulfur by 90% very soon to make arboform usable for home needs.
【小题1】According to the passage, plastic_______.
A.helps us to reduce the use of petrol |
B.helps to protect our environment in some way |
C.does harm to our society in some way |
D.has been replaced by the newly discovered material |
A.It is easier made from natural oil. |
B.It is more widely used in household |
C.It is recyclable and friendly to environment. |
D.It contains no poisonous materials. |
A.lignin or arboform | B.soft tissues of wood |
C.plastics or wood | D.mixture of several materials |
A.the material’s extensive use | B.the content of sulfur in arboform |
C.the production cost of arboform | D.the qualities of liquid wood |
A.introduce liquid wood which will replace plastic |
B.show readers how to produce arboform |
C.advertise the new material-arboform |
D.advertise new products made of arboform |