【正文】 ugh a number of these can hardly be looked upon as resounding successes. Beyond that, about a further 20 species are being seriously considered for zoo conservation programs. Given that the international conference at London Zoo was held 30 years ago, this is pretty slow progress, and a long way off Tudge39。 credit card debt? A) High dropout rates. B) Enter into business partnerships with schools. C) Commit suicide. D) Future employment problems.54. Who should be least criticized for negative consequences of students39。t count on it, say home school advocates. Home schoolers oppose the system because they have strong convictions that their approach to educationwhether fueled by religious enthusiasm or the individual child39。t go to school but are educated at home by their parents. C) Home schoolers educate their children at home instead of sending them to school. D) Home schoolers advocate bining public education with home schooling.58. Public schools are softening their position on home schooling because. A) they want to show their tolerance for different teaching systems B) there isn39。 using credit card B) college administrators are playing their proper roles in promoting credit cards C) card issuers or college administrators promoted credit card D) reasons for high dropout rates in universities56. We can infer from the passage that ______. A) students should not have parttime jobs B) credit cards should not be used C) if there is no credit card, college students may not mit suicide D) college students should learn to wisely manage their personal financesPassage Two The estimates of the numbers of homeschooled children vary widely. The U. S. Department of Education estimates there are 250,000 to 350,000 homeschooled children in the country. Home school advocates put the number much higher at about a million. Home school advocates take a harsh attitude toward home schoolers, perceiving their actions as the ultimate slap in the face for public education and a damaging move for the children. Home schoolers harbor few kind words for public schools, charging shortings that range from lack of religious perspective in the curriculum to a herdlike approach to teaching children. Yet, as public school officials realize they stand little to gain by remaining hostile to the home school population, and as home schoolers realize they can reap benefits from public schools, these hard lines seem to be softening a bit. Public schools and home schoolers have moved closer to tolerance and, in some cases even cooperation. Says John Marshall, an education official, we are being relatively tolerant of home schoolers. The idea is, let39。s failings is it ______ the number of zoos in the world.49. In accordance with WZCS, what kind of zoos can participate in the international coordinated conservation programs?50. The writer doubts the value of the WZCS document partly because of its failure to examine the of the core zoos.51. What word best describes the writer39。s rather mediocre record on conservation, one might be forgiven for being slightly skeptical about such an advertisement. Zoos were originally created as places of entertainment, and their suggested involvement with conservation didn39。s too cold to move to San Francisco. C) The woman agrees with the man39。t have g good talk. B) They decided to go by plane. C) They weren39。s these were to be replaced by a LCD, Liquid Crystal Display. Quartz clocks continue to dominate the market because of the accuracy and reliability of the performance, also being inexpensive to produce on mass scale. The time keeping performance of the quartz clock has now been surpassed by the Atomic clock.Atomic Clocks Scientists discovered some time ago that atoms and molecules have resonances and that each chemical element and pound absorbs and emits electromagnetic radiation within its own characteristic frequencies. This we are told is highly accurate even over Time and Space. The development of radar and the subsequent experimentation with high frequency radio munications during the 1930s and 1940s created a vast amount of knowledge regarding electromagnetic waves, also known as microwaves. which interact with the atoms. The development of atomic clocks focused firstly on microwave resonances in the chemical Ammonia and its molecules. In 1957. NIST. the National Institute of Standards and Technology, pleted a series of tests using a Cesium Atomic Beam device, followed by a second program of experiments by NIST in order to have something for parison when working at the atomic level. By 1960, as the oute of the programs, Cesium Time Standards were incorporated as the official time keeping system at NIST. The Natural frequency recognized currently is the measurement of time. used by all scientists, defines the period of one second as exactly 9,192,631,770 Oscillations or 9,192,631,770 Cycles of the Cesium Atom39。 無(wú)名 College English Practice Test 1Part I Writing (30 minutes)Directions: In this part, you are allowed 30 minutes to write a short essay entitled An Eyewitness Account of a Traffic Accident. You should write at least 150 words following the outline given below. 1．車禍發(fā)生的時(shí)間及地點(diǎn)； 2．你所見(jiàn)到的車禍情況； 3．你對(duì)車禍原因的分析。s evolutionary thinking regarding our view of the past, our onward journey into the future and our concept of time in relationship to universe.1. It is suggested that 5,0006,000 years ago people in the Middle East and North Africa started to allot specific lengths of time to tasks.2. Ancient Egyptian shadow clock or sundial discovered around 1500 BC, could measure passage of hours automatically a