问题:Which one of the following is NOT the reason for an overall lack of teaching Darwin's theory?A.Teaching of creationism diminishes teaching of evolution.B.Teachers are not required to teach Darwin's theory.C.teachers often leave out the teaching of evolution.D.Darwin's theory is denied as the central theory of biology.
Friday, April 5, 2024
问题:But in the end he approved of our proposal.A.undoubtedlyB.certainlyC.ultimatelyD.necessarily
Sunday, May 12, 2024
问题:And the cars are tested for defects before leaving the factory.A.functionsB.faultsC.motionsD.parts
问题:Defending the Theory of Evolution Still Seems NeededJudith S. Weis, a biology professor who serves as president of the American Institute of Biological Sciences (AIBS) is leading a nationwide effort to "defend" the theory of evolution. Weis leads the effort in the face of what the institute views as opposition and indifference from school boards and government entities.The Institute believes that the teaching of evolution in America is being diminished by the teaching of creationism as well as by an overall lack of teaching Darwin's theory in high school. "There's nothing that requires schools to teach evolution. Sometimes teachers in high schools just leave it out. However from the point of view of biologists, evolution is the central theory of biology upon which everything is based," said Weis. "Unfortunately, teaching evolution has become a political issue in many parts of the country and AIBS, as a representative of biologists, wanted to be a major force speaking out in favor of its teaching. "Weis said the institute is working together with the American Geological Institute and the National Association of Biology Teachers and its 80-plus member organizations to address" the political and legislative threats to teaching evolution. In states challenging its teaching, the institute responds by sending letters to school boards and state legislatures, by providing testimony at public meetings and by notifying members and affiliated organizations. AIBS, with more than 80 member societies and 250,000 members, has established an email system enabling scientists and teachers in each state, and member societies, to keep each other informed about threats to the teaching of evolution.Darwin's theory of evolution holds that living things change and adapt to their environment and that present-day species ( including human beings) are descended from earlier species through modification by natural selection. The theory has been accepted by scientists for nearly 100 years, Weis said, and has been refined, extended and strengthened over the years by findings in paleontology and developmental biology. Discoveries in genetics, molecular biology and genomics—all of which provide significant benefits for human health—would not be possible without the underlying knowledge of evolution. And, Weis adds, "modem molecular biology and genomics have increased our understanding of how evolution works." Nonetheless, evolution remains a politically, if not scientifically, controversial issue.Weis said that this year alone, seven states have had either local or statewide efforts to water down the teaching of evolution, or "balance" it with the teaching of creationism—a religious belief that different species were created separately by a higher power, such as God. "Rarely does anyone now use the word ' creationism, ' because that's too obvious," Weis said. "The current terminology is ' intelligent design. ' "According to the first paragraph, which of the following statements about the theory or evolution is true?A.Government entities support AIBS's effort to defend the theory of evolution.B.School boards oppose AIBS's effort to defend the theory of evolution.C.AIBS and school boards advocate the teaching of the theory of evolution.D.The theory of evolution and that of creationism co-exist peacefully in schools.
问题:People are confused in their attempts to control malaria in Europe in the early 1900s, because scientists ______.A.identified only one mosquito species instead of six speciesB.thought only three mosquito species transmitted diseaseC.thought there was only one mosquito speciesD.did not know what species was being studied
Tuesday, November 28, 2023
问题:As early as the 6th century, Irish fishermen started raising dolphins in the Shannon estuary.A.RightB.WrongC.Not mentioned
问题:For young children, getting dressed is a complicated business.A.strangeB.complexC.personalD.funny
问题:Paragraph 6 ______
问题:What will be the benefit if the research on smart windows turns out to be successful, according to the last paragraph?A.The buildings will look different.B.Windows can be as large as you want.C.We may not need air conditioners any more.D.They are less expensive than traditional windows.
问题:"Hidden" Species May Be Surprisingly CommonCryptic species animals that appear identical but are genetically quite distant—may be much more widespread than previously thought. The findings could have major implications in areas ranging from biodiversity estimates and wildlife management, to our understanding of infectious diseases and evolution.Reports of cryptic species have increased dramatically over the past two decades with the advent of relatively inexpensive DNA sequencing technology. Markus Pfenninger and Klaus Schwenk, of the Goethe-Universitat, in Frankfurt, Germany, analyzed all known data on cryptic animal species and discovered that they are found in equal proportions throughout all major branches of the animal kingdom and occur in equal numbers in all biogeographieal regions.Scientists had previously speculated that cryptic species were predominantly found in insects and reptiles, and were more likely to occur in tropical rather than temperate regions. "Species that are seemingly widespread and abundant could in reality be many different cryptic species that have low populations and are highly endangered. " Says Pfenninger. Until the genetic information of all species in at least one taxon is thoroughly studied, no one will know just how many cryptic species exist. "It could be as high as 30%. " Pfenninger says."I'm extremely surprised by their results. " Says Alex Smith of the University of Guelph in Ontario, Canada. "It's a call to arms to keep doing the broad kind of genetic studies that we are doing. "Sampling as many individuals as possible, scientists hope to complete work on all fish and birds in another 5 to 10 years. Once either of these taxonomic groups is completed, Pfenninger says researchers will be able to decide how many cryptic species exist throughout the animal kingdom.Examples of cryptic species include the African elephant. A 2001 study found the elephants were actually two genetically distinct, non-interbreeding species, the African bush elephant and the African elephant. The species are currently listed as vulnerable and threatened, respectively, by the World Conservation Union (WCU).The reclassifications are more than an academic exercise. They define populations that have evolved independently of each other and whose genetic differences can have significant consequences. In the early 1900s misidentification of mosquito species based on morphology confused attempts to control malaria in Europe. Ultimately, what was thought to be a single species was actually made up of six sibling species, only three of which transmitted the disease. "The basic unit in biology is always the species, and you have to know what you are dealing with. " Pfenninger says. Much previous research is now no longer used, he says, because it is not clear what species was being studied.Which of the following about the significance of the research on cryptic species is NOT true?A.The results of the research can help the development of many other research areas.B.The results of the research can help the development of biodiversity estimates.C.The results of the research can help our understanding of infectious disease evolution.D.The results of the research can help our understanding of "survival of the fittest. "
问题:He is determined to consolidate his power.A.strengthenB.controlC.abandonD.exercise
问题:Why do people replace the term creationism with the term intelligent design nowadays?A.Because "intelligent design" represents the modified theory of evolution.B.Because they believe God created different species.C.Because the term creationism is unscientific.D.Because the term creationism is too direct.
问题:According to Weis in the 5th paragraph, the theory of evolution ______.A.is fundamental to the development of modem genetics, molecular biology and geonomicsB.is a political issueC.is based on genetics, molecular biology and geonomicsD.has increased our understanding of human health
问题:The Building of the PyramidsThe oldest stone buildings in the world are the pyramids.【46】 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 the "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 modem buildings.【47】. These are good reasons why they can still be seen today, but perhaps the most important is that they were planned to last for ever. 【48】. However, there are no writings or pictures to show us how the Egyptians planned or built the pyramids themselves.【49】. Nevertheless, by examining the actual pyramids and various tools which have been found, archaeologists have formed a fairly cleat picture of them.One thing is certain: there must have been months of careful planning before they could begin to build.【50】 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.A. The dry climate of Egypt has helped to preserve the pyramids, and their very shape have made them less likely to fall into ruin.B. It is practically certain that plans were made for the building of the pyramid because the plans of other large works have fortunately been preserved.C. The first thing they had to do was to choose a suitable place.D. Consequently, we are only able to guess at the methods used.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.(46)
Sunday, March 31, 2024
问题:Crashed Cars to Text Message for HelpThere is no good place to have a car crash -- but some places are worse than others. In a foreign country, for instance,【51】 to explain via cellphone that you are upside down in a ditch (沟渠) when you cannot speak the local language can fatally (~) delay the arrival of the emergency services.But an answer may be at hand. Researchers funded by the European Commission are beginning tests of a system called E-merge that【52】senses when a ear has crashed and sends a text message, telling emergency services in the local language that the accident has taken place.The system was【53】 by ERTICO, a transport research organization based in Brussels. Belgium. Cars are fitted with a eellphone-sized device attached【54】 the underside of the dashboard (仪表板) which is activated by the same sensor that triggers the airbag in a crash. The device【55】 a cellphone circuit, a GPS positioning unit and a microphone and loudspeaker.It registers the severity of the crash by【56】 the deceleration data from the airbag's sensor. Using GPS information, it works out which country the Car is in, and from this it determines【57】 which language to compose an alert message detailing precise location of the accident.The device then automatically makes a call to the local emergency services【58】. If the car's occupants are conscious, they can communicate with the operator【59】 the speaker and microphone.E-merge also transmits the vehicles make, model, color and license number, and its heading' when it crashed, which in rum indicates on which side of a multi-lane highway it ended up.This【60】 the emergency services find the vehicle as soon as they arrive on the scene. "We can waste a large【61】time searching for an incident, "says Jim Hammond, a(an)【62】in vehicle technology at the Association of Chief Police Officers in the UK. Tests will begin soon with police car fleets in the UK. Trials have already started in Germany, Sweden, Spain, the Netherlands and Italy.In-car systems that summon (召集) the emergency services after a crash have【63】been fitted in some premium cars". ERTICO says that【64】EU states "are willing to fund the necessary infrastructure (基础结构), E--merge could be working by 2008.A study by French car maker Renault" concluded that the system could save up to 6000 of the 40,000 lives lost each year on Europe's roads, and prevent a similar number of serious injuries.The Renault study estimates that fitting E-merge to every car in Europe would eventually save around 150 billion per【65】in terms of reduced costs to health services and insurance companies, and fewer lost working days.(51)A.tryB.triedC.tryingD.having tried
问题:______ when electron rearrangement takes place.
问题:AIBS's is composed of ______.A.more than 80 societies and 250,000 membersB.250,000 biologistsC.80 member organizationsD.more than 250,000 members and 80 member societies
问题:Hearing problems may be alleviated by changes in diet and exercise habits.A.removedB.curedC.worsenedD.relieved