题目内容
Our ape-men forefathers had no obvious natural weapons in the struggle for【1】in the open. They had neither the powerful teeth nor the strong claws of the big cats. They could not【2】with the bear, whose strength, speed and claws【3】an impressive " small fire" weaponry. They could not even defend themselves【4】running swiftly like the horses, zebras or small animals. If the ape-men had attempted to compete on those terms in the open, they would have been【5】to failure and extinction. But they were【6】with enormous concealed advantages of a kind not possessed by any of their competitors. In the search【7】the pickings of the forest, the ape-men had【8】efficient stereoscopic vision and a sense of color that the animals of the grasslands did not【9】. The ability to see clearly at close range permitted the ape-men to study practical problems in a way that lay far【10】the reach of the original inhabitants of the grassland. Good long-distance sight was【11】another matter. Lack of long-distance vision had not been a problem for forest-dwelling apes and monkeys because the【12】the viewpoint, the greater the range of sight-so【13】they had had to do was climb a tree. Out in the open, however, this simple solution was not【14】. Climbing a hill would have helped, but in many places the ground was flat. The ape-men【15】the only possible solution. They reared up as high as possible on their hind limbs and began to walk【16】. This vital change of physical position brought about considerable disadvantages. It was extremely unstable and it meant that the already slow ape-men became【17】still.【18】, they persevered and their bone structure gradually became【19】to the new, unstable position that【20】them the name Homo erectus, upright man.
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Our ape-men forefathers had no obvious natural weapons in the struggle for【1】in the open. They had neither the powerful teeth nor the strong claws of the big cats. They could not【2】with the bear, whose strength, speed and claws【3】an impressive " small fire" weaponry. They could not even defend themselves【4】running swiftly like the horses, zebras or small animals. If the ape-men had attempted to compete on those terms in the open, they would have been【5】to failure and extinction. But they were【6】with enormous concealed advantages of a kind not possessed by any of their competitors. In the search【7】the pickings of the forest, the ape-men had【8】efficient stereoscopic vision and a sense of color that the animals of the grasslands did not【9】. The ability to see clearly at close range permitted the ape-men to study practical problems in a way that lay far【10】the reach of the original inhabitants of the grassland. Good long-distance sight was【11】another matter. Lack of long-distance vision had not been a problem for forest-dwelling apes and monkeys because the【12】the viewpoint, the greater the range of sight-so【13】they had had to do was climb a tree. Out in the open, however, this simple solution was not【14】. Climbing a hill would have helped, but in many places the ground was flat. The ape-men【15】the only possible solution. They reared up as high as possible on their hind limbs and began to walk【16】. This vital change of physical position brought about considerable disadvantages. It was extremely unstable and it meant that the already slow ape-men became【17】still.【18】, they persevered and their bone structure gradually became【19】to the new, unstable position that【20】them the name Homo erectus, upright man.
妊娠26周，自觉腹围较正常孕周大，临床申请超声检查。 当对该胎儿进行颅脑扫查时，可能发现的脑部异常为
Our ape-men forefathers had no obvious natural weapons in the struggle for【1】in the open. They had neither the powerful teeth nor the strong claws of the big cats. They could not【2】with the bear, whose strength, speed and claws【3】an impressive " small fire" weaponry. They could not even defend themselves【4】running swiftly like the horses, zebras or small animals. If the ape-men had attempted to compete on those terms in the open, they would have been【5】to failure and extinction. But they were【6】with enormous concealed advantages of a kind not possessed by any of their competitors. In the search【7】the pickings of the forest, the ape-men had【8】efficient stereoscopic vision and a sense of color that the animals of the grasslands did not【9】. The ability to see clearly at close range permitted the ape-men to study practical problems in a way that lay far【10】the reach of the original inhabitants of the grassland. Good long-distance sight was【11】another matter. Lack of long-distance vision had not been a problem for forest-dwelling apes and monkeys because the【12】the viewpoint, the greater the range of sight-so【13】they had had to do was climb a tree. Out in the open, however, this simple solution was not【14】. Climbing a hill would have helped, but in many places the ground was flat. The ape-men【15】the only possible solution. They reared up as high as possible on their hind limbs and began to walk【16】. This vital change of physical position brought about considerable disadvantages. It was extremely unstable and it meant that the already slow ape-men became【17】still.【18】, they persevered and their bone structure gradually became【19】to the new, unstable position that【20】them the name Homo erectus, upright man.
In the following text, some sentences have been removed. For Questions (41-45), choose the most suitable one from the list A-G to fit into each of the numbered blank. There are two extra choices, which do not fit in any of the gaps. In the following text, some sentences have been removed. For Questions (41-45), choose the most suitable one from the list A-G to fit into each of the numbered blank. There are two extra choices, which do not fit in any of the gaps. English has become the world"s number one language in the 20th century. In every country where English is not the native language, especially in the Third World, people must strive to learn it to the best of their abilities, if they want to participate fully in the development of their countries. 41．______ A close examination reveals a great number of languages have fallen casualty to English. For example, it has wiped out Hawaiian, Welsh, Scotch Gaelic, Irish, native American languages, and many others. Luckily, some of these languages are now being revived, such as Hawaiian and Welsh, and these languages will live again, hopefully, if dedicated people continue their work of reviving them. 42．______If this situation continues, the native or official languages of these countries will certainly die within two or three generations. This phenomenon has been called linguistic genocide. A language dies if it is not fully used in most activities, particularly as a medium of instruction in schools. 43．______According to many studies, only around 20 to 25 percent of students in these countries can manage to learn the language of instruction (English) as well as basic subjects at the same time. Many leaders of these Third World countries are obsessed with English and for them English is everything. They seem to believe that if the students speak English, they are already knowledgeable. These leaders speak and write English much better than their national languages. If these leaders deliver speeches anywhere in the world they use English and they feel more at home with it and proud of their ability as well. The citizens of their countries do not understand their leaders" speeches because they are made in a foreign language. All the greatest countries of the world are great because they constantly use their own languages in all national development activities, including education. From a psychological point of view, those who are taught in their own language from the start will develop better self-confidence and self-reliance. From a linguistic point of view, the best brains can only be produced if students are educated in their own language from the start. 44. There is nothing wrong, however, in learning a foreign language at advanced levels of education. 45. [A] But many people are concerned that English"s dominance will destroy native languages. [B] But the best thing to do is to have a good education in one"s native language first, then go abroad to have a university education in a foreign language. [C] Suppose you work in a big firm and find English very important for your job because you often deal with foreign businessmen. Now you are looking for a place where you can improve your English, especially your spoken English. [D] Nonetheless, a world full of different languages will disappear if the present trend in many countries to use English to replace the national or official languages in education, trade and even politics continues. [E] Those who are taught in a foreign language from the start will tend to be imitators and lack self-confidence. They will tend to rely on foreign consultants. [F] Here are some advertisements about English language training from newspapers. You may find the information you need. [G] The Third World countries that are now using English as a medium of instruction are depriving 75 percent of their future leaders of a proper education.
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