雅思阅读长难句4

雅思阅读长难句41. whether the government should increase the financing of pure science at the expense of technology or vice versa (反之) often depends on the issue of which is seen as the driving force.2. how well the predictions will be validated by later performance depends upon the amount, reliability, and appropriateness of the information used and on the skill and wisdom with which it is interpreted.3. there is no agreement whether methodology refers to the concepts peculiar to historical work in general or to the research techniques appropriate to the various branches of historical inquiry.4. furthermore, it is obvious that the strength of a country’s economy is directly bound up with the efficiency of its agriculture and industry , and that this in turn rests upon the efforts of scientists and technologists of all kinds.5. what could be a key to jet lag and winter blues is the hormone melatonin, which is known to regulate body Rhythms.6.there are now 31 million kids in the 12-to-19 age group, and demographers predict that there will be 35 million teens by 2010, a population bigger than even the baby boom at its peak.7. it seemed almost unbelievable but what appeared to be happening was that the fault was actually being lubricated by the injection of the fluid.8. it is scarcely surprising, then, that education systems have for several decades past been severely criticized, partly on the ground that education prepares people to live in an already outdated society.9. there are strong grounds for thinking that the health of both individuals and societies derives from what we’re able to put into life, rather than what we try to get out of it.10. it therefore becomes more and more important that, if students are not to waste their opportunities, there will have to be much more detailed information about courses and more advice.11. Experts are debating whether we should burden young children with mental computation, or encourage the use of calculators to relieve children of hard work and free their minds to understand math concepts.12．the announcement by boeing that it has decided to scrap plans to build a futuristic, high-speed plane called the sonic cruiser brings an end to one of the most imaginative –and some say quixotic –projects in recent aerospace engineering13．a religious sect that contends that space travelers created the human race by cloning themselves declared friday that the first cloned human had been born, but it offered few details and no evidence to support the claim.14．yet no such effect had been detected in any of the ingenious and delicate experiments that physicists had devised.15. if the probe takes, say, 100 years to make a copy of itself, then the average speed at which all probes would spread throughout the galaxy （星系）would be about 1/25th the speed of light.16. but such troubles is confined mainly to the railways on which the current is picked up from a third rail rather than from overhead conductors.17. as brighter areas of the image eject more electrons than the darker or shaded portions, an electronic image is produced in which varying degrees of positive charge duplicate light intensities seen in the scene being pictured.18. to kill weed which may sprawl rampantly among crops in the first several years, effective weedicide is needed to play the same role as ploughing fields does to eliminate weed.19. at a large terminal railway station, the work of the station master is largely administrative because of the extent of the operations and the staff of which he is in command.20. attending services at the cathedral of pisa, he found himself watching a swinging chandelier, which air currents shifted now in wide arcs, now in small ones.21．although he got generally good grades and was outstanding in mathematics, einstein hated the academic high school he was sent to in munich, where success depended on memorization and obedience to arbitrary authority.22. one is the visible edge of the sun, which is a gaseous “surface”from which visible light photons （光子）freely emerge.23．rockets perform best in space, where there is no atmosphere to impede their motion.24．congress, which had met to continue its protests to the crown, found itself raising an army and selecting george washington as its commander in chief.25．this food supply will not increase nearly enough to match this, which means that we are heading into a crisis in the matter of producting and marketing food.26．other issues that concern the body politic, such as crime, poverty, and welfare, are not easily linked to public support of scientific research, save at the educational level.27．in the greek heritage of the west, myth has always been in tension with reason, which signified the rational and analytic mode of arriving at a true account of reality.28．medicine, like all branches of science, needs scholars who are able to develop appropriate "rule of evidence" and then apply those rules to the continuously flowing stream of new data to determine what is relevant.29．behaviorists suggest that the child who is raised in an envioronment where there are many stimuli which develop his or her capacity for appropriate responses will experience greater intellectual development.30. my idea of a good p.e. class is one where youth are involved in at least 20 minutes of basic movement that gets their heart rates up31. that summer, those who remained were found fleeing down rivers to return home to england by new settlers with fresh supplies, who encouraged them to reconsider.。