单选题The first two stages in the development of civilized man were probably the invention of weapons and the discovery of fire, although nobody knows exactly when he acquired the use of the

单选题Different words are used to describe the concept in different languages. This reflects the design feature of displacement concerning human languages.

单选题Ralph Waldo Emerson"s____is regarded as the "Declaration of Intellectual Independence".

单选题A What is limiting the realization of the opportunity B are the absence of relevant ideals C in the minds of the people D who are using and developing and innovating these technologies. "

单选题When a child uses "mummy" to refer to any woman, most probably his "mummy" means

单选题Bacon and eggs______ common Sunday breakfast in England.

单选题Theorists are divided concerning the origin of the Moon. Some hypothesize that the Moon was formed in the same way as were the planets in the inner solar system(Mercury, Venus, Mars, and Earth)—from planet—forming materials in the presolar nebula. But, unlike the cores of the inner planets, the Moon"s core contains little or no iron, while the typical planet-forming materials were quite rich in iron. Other theorists propose that the Moon was ripped out of the Earth"s rocky mantle by the Earth"s collision with another large celestial body after much of the Earth"s iron fell to its core. One problem with the collision hypothesis is the question of how a satellite formed in this way could have settled into the nearly circular orbit that the Moon has today. Fortunately, the collision hypothesis is testable. If it is true, the mantle rocks of the Moon and the Earth should be the same geochemically.

单选题The utility of the corpus is increased when it has been______.

单选题The most important sociological use of language is the______function, by which people establish and maintain their status in a society.(西安外国语学院2006研)

单选题Some personal characteristics play a vital role in the development of one's intelligence. But people fail to realize the importance of cultivating these factors in young people. The so-called "non-intelligence factors" include【C1】______feelings, will, motivation, interests and habits. After a 30-year follow-up study of 8000 males, American psychologists found out that the main cause of【C2】______in intelligence is not intelligence【C3】______. but non-intelligence factors including the desire to learn, willpower and self-confidence. 【C4】______people all know that one should have definite objectives, a strong will and good learning habits, quite a number of teachers and parents don't pay much attention to【C5】______these factors. Some parents are greatly worried【C6】______their children fail to do well in their studies. They blame either【C7】______factors, malnutrition, or laziness, but they never take into consideration these non-intelligence factors. At the same time, some teachers don't【C8】______into these, as reason why students do poorly. They simply give them more courses and exercises, or even rebuke or【C9】______them. In the end, these students lose self-confidence. Some of them just feel defeated and【C10】______themselves up as hopeless. Others may go【C11】______because they are sick of learning. Another investigation of more than 1000 middle students in Shanghai showed that 46.5 percent of them were afraid of learning, because of examination, 36.4 percent【C12】______persistence, initiative and conscientiousness and 10.3 percent were sick of learning. It is clear【C13】______the lack of cultivation of non-intelligence factors has been a main【C14】______to intelligence development in teenagers. It even causes an imbalance between physiological and【C15】______development among a few students. If we don't start now to【C16】______the cultivation of non-intelligence factors, it will not only obstruct the development of the【C17】______of teenagers, but also affect the quality of a whole generation. Some experts have put forward【C18】______about how to cultivate student's non-intelligence factors. First, parents and teachers should【C19】______understand teenage psychology. On this basis, they can help them to pursue the objectives of learning, 【C20】______their interests and toughening their willpower.

单选题The committee couldn"t reach agreement and decided to table the bill.

单选题When they moved to London, they had to______with some of the treasured furniture.

单选题During the Reason and Revolution Period, Americans were influenced by the European movement called the______.

单选题A child acquires his/her mother tongue invariably through these phases: ______, one-word, two-word and multiword.

单选题An argument made by supporters of smoking was that ______.

单选题Michelangelo was the greatest sculptor of the sixteenth century. We admire the products of his genius but we less frequently pause to consider the magnitude of the tasks he undertook, the problems he encountered, and even failures—he may have suffered.

单选题According to Paradise Lost, Adam and Eve are forbidden to eat the fruit of the Tree of Knowledge of______.

单选题The pupil of the human eye______when the level of light is low.

单选题A Researchers at the university B are investigating a series of indicators that C could help D themselves to predict earthquakes.

单选题Senator______launched an Anti-Communist hysteria in the early 1950s.