觉得在英文中,插入语的成分用得十分graceful,真正能感受到英文作为一种语言的elegence;插入结构对于全句的accuarate,concis和effective的贡献是不可估量的。
1. The intricate structure of the compound insect eye, with its hundreds of miniature eyes calledommatidia, helps explain why scientists have assumed that it evolvedindependently of the vertebrate eye.
2. Rising inventories, if notaccompanied by corresponding increases in sales, can lead toproduction cutbacks that would hamper economic growth.
3. Plants are more efficient than fungi at acquiring carbon, inthe form of carbon dioxide(apostrophe?), and convertingit to energy-rich sugars.
4. Neuroscientists, having amassed a wealth ofknowledge over the past twenty years about the brain and its development frombirth to adulthood, are now drawingsolid conclusions about how the human brain grows and how babies acquirelanguage.
5. Galileo was convinced that natural phenomena,as manifestations of the laws of physics, would appear the same tosomeone on the deck of a ship moving smoothly and uniformly through the wateras to a person standing on land.
6. Along with the drop in producer prices announced yesterday, thestrong retail sales figures released today seem to indicate that theeconomy, although growing slowly (apostrophe),is not nearing a recession.
7. Quasars, (at billions of light-years from Earth)(the most distant observable objects in the universe), are believed to be the cores of galaxies in an early stage of development.
8. His studies of ice-polished rocks in his Alpine homeland, far outside the range of present-day glaciers,(adj短语修饰studies)led Louis Agassiz in 1837 to propose the concept of an age in whichgreat ice sheets existed in what are now temperate areas.
9. Defense attorneys have occasionally argued that their clients’misconduct stemmed from a reaction to something ingested, but if criminal or delinquent behavior is attributed to anallergy to some food(状语?), the perpetrators are ineffect told that they are not responsible for their actions.
10. Even though Clovis points, spear points withlongitudinal grooves chipped onto their faces, have been found all overNorth America, they are named for the New Mexico site where they were firstdiscovered in 1932.
11. Being heavily committed to a course of action, especially one that has worked well in the past, islikely to make an executive miss signs of incipient trouble or misinterpretthem when they do appear.
12. El Niño, the periodic abnormal warming ofthe sea surface off Peru, is a phenomenon in which changes inthe ocean and atmosphere combine to allow the warm water that has accumulated inthe western Pacific to flow back to the east.
13. Starfish, with anywhere from five to eightarms(定语), have a strong regenerative ability, and if one arm is lostit is quickly replaced, with the animal sometimesovercompensating and growing an extraone or two(状语).
14. The World Wildlife Fund has declared that global warming, aphenomenon that most scientists agree is caused byhuman beings’ burning of fossil fuels, will create havoc amongmigratory birds by altering the environment in ways harmful to their habitats.
15. Sales of wines declined in the late 1980s, but they began togrow again after the 1991 report that linkedmoderate consumption of alcohol, and particularly ofred wine,(apostrophe、) with a reduced risk of heart disease.
16. The use of lie detectors is based on the assumption that lyingproduces emotional reactions in an individual that, in turn,(状语前置?) create unconscious physiologicalresponses.
17. Joan of Arc, a young Frenchwoman who claimed to be divinelyinspired, turned the tide of English victoriesin her country by liberating the city of Orléans and persuaded Charles VII of France to claim his throne.
18. Although heirloom tomatoes, grown from seedssaved during the previous year, appear less appetizing than most oftheir round and red supermarket cousins—they are often green and striped, or have plenty of bumps andbruises—heirlooms are more flavorful and thus in increasing demand.
19. Part of the proposed increase in state education spending is due tohigher enrollment: the number of students in public schools has grownsteadily sincethe mid-1980's and, atnearly 47 million, has reached a record high.
20. Whereas a ramjet generally cannot achieve high speedswithout the initial assistance of a rocket, a scramjet, or supersonic combustion ramjet, can attain highspeeds by reducing airflow compression at the entrance of the engine andletting air pass through at supersonic speeds.
21. While they remove carbon dioxide from the air, conserve soil and water,and house thousands of species, forests also supply potentially valuable pharmaceuticalsand, as sources of building material and firewood, provideemployment for millions worldwide.
22. Meteor showers and individual streaks of light that flash across thesky every night are generated when tiny flecks of celestial detritus, often no larger than grains of sand or pebbles,burn up while speeding through the atmosphere.
23. Although ice particles in the upper atmosphere benefit Earth in that theyreflect and absorb solar radiation, acting as aglobal thermostat and thus keeping Earth from either burning up or freezingover(状语修饰reflect和keep,how), they also accelerate the destruction ofthe ozone layer by reacting with chlorofluorocarbons (CFC's).
24. Eventhough many of her colleagues were convinced that geneswere relatively simple and static, BrabaraMcClintock adhered to her own more complicated ideas about how genes mightoperate, and in 1983,at the age of 81(同位语修饰in 1983), was awarded aNobel Prize for her discovery that the genes in corn are capable of moving fromone chromosomal site to another.
25. Frederick Winslow Taylor, a machinist andengineer who worked in the early twentieth century(同位语修饰Taylor), believed that theproductivity of a job could be improved by separating the components of atask into individual motions, finding the bestway to perform each motion, and then redesigning the job so thateach motion could be done as efficiently as possible.
26. Since 1975 so many people have been moving to Utah that theMormons, who once represented 75 percent of thepopulation, now account for only half.
27. The Federalist papers, a strong defense ofthe United States Constitution aswell as an important body of work in political science,represent the handiwork of three different authors.
28. A firm that specializes in the analysis of handwriting claims to beable, from a one-page writing sample(状语修饰assess), to assess more than 300 personality traits, including enthusiasm, imagination,and ambition.
29. .The first pulsar, or rapidly spinningcollapsed star, (同位语修饰pulsar) to be sighted was observed in the summer of 1967 by graduate studentJocelyn Bell, but the discovery was not announced until February 1968.
30. Some patients who do not respond to therapies for depression maysimply have received inadequate treatment, having,for example,(状语修饰have, explain what) been prescribed a drug at a dosage too low to beeffective or having been taken off a drug too soon.
31. The new image of Stone Age people as systematic hunters of largeanimals, rather than mere scavengers of meat(“newimage of stone age”同位语 ), has emerged from the examination of tools found in Germany,including three wooden spears that archaeologistsbelieve to beabout 400,000 years old.
32. Hydrocarbons, with which fruit flies perfumethemselves in species-specific blends(Hydrocarbons的定语), are known to be important in courtship, apparentlyassisting flies that taste the hydrocarbons on prospective mates indistinguishing their own species from others.
33. Besides adding complementary flavors to many foods, hot sauces stimulatethe release of endorphins in the brain, just asexercise does (状语or同位语?), and these have apain-relieving effect like morphine's.
34. A new genetically engineered papaya was produced not byprofit-motivated seed companies, as was the case with mostgenetically modified crops previously approved for commercial use,(状语or 同位?) but by university and United States Department of Agriculture researcherswho allowed growers to use it free of charge.
35. None of the attempts to specify the cause of crime explains why mostof the people exposed to the alleged causes do not commit crimes and ,conversely(状语修饰do,how), why so many of those not so exposed do.
36. .Since 1986, when the Department of Laborbegan to allow fees of investment officers to be based on the performance ofthe funds they (同位语修饰since 1986) , several corporationshave begun paying their investment advisers a small basic fee, witha contract promising higher fees if the managersperform well.
37. The ivory-billed woodpecker, once thelargest woodpecker in North America at a striking 20 inches tall(状语:修饰move--when), has moved in and out of the extinct category, with scientistsconsistently unable to find solid proof that the bird still exists.
38. With no natural predators and with expanses of green suburbanneighborhoods where there is no hunting, the deer population in New Jersey, wildlife officials estimate (状语修饰deer population grown, how: wildlife officialestimate), has grown to exceed 175,000.
39. The Anasazi settlements at Chaco Canyon were built on a spectacularscale, with morethan 75 carefully engineered structures, of upto 600 rooms each(同位语修饰with more…), connected by a complex regionalsystem of roads.
40. The Sports Medicine Programs of theOlympic Training Center, a complex where final tryouts are held for athletes representing theUnited States in the Olympics(同位语,修饰thesports medicine programs…), are geared towardenhancing the performance of athletes and preparing them for internationalcompetition.
41. Archaeologists in Egypt have excavated a 5,000-year-old wooden hull that isthe earliest surviving example of a "built" boat--in other words, aboat constructed out of planks fitted together--and that thus represents amajor advance, in terms of boat-building technology(状语,修饰represent), over the dugoutlogs and reed vessels of more ancient vintage.
42. Researchers have determined that, because of poaching and increasedcultivation in their native habitats(状语,修饰there are fewer;why?), there are fewer than 100 Arabianleopards left in the wild, and that these leopards are thus many times more rare than China's giant pandas.
43. More than 300 rivers drain intoSiberia's Lake Baikal, which holds 20 percent of the world'sfresh water(定语修饰lake Baikal), more than all the North American GreatLakes combined.(more than 300 rivers的同位语从句)
44. Last year, land values in most parts of the pinelandsrose almost as fast as, andin some parts even faster than(同位语修饰as fast as), those outside the pine lands.
45. A new hair-growth drug is being sold for three times the price, per milligram(状语修饰sold for), that the drug's maker charges for anotherproduct with the same active ingredient.
46. The survival of coral colonies, which arecomposed of innumerable tiny polyps living in a symbiotic relationship withbrilliantly colored algae, is being threatened, expertssay, not only by pollutantssuch as agricultural runoff, oil slicks, and trash, but also by droppedanchors, probing divers, and global warming.
47. Archeologists in Ireland believe that a recently discovered chalice,which dates from the eighth century, wasprobably buried to keep it from being stolen by invaders.
48. Part of the proposed increase in state education spending is due tohigher enrollment: the number of students in public schools has grownsteadily since the mid-1980's and, at nearly 47 million, has reached a record high.
49. Schistosomiasis, a disease caused by a parasitic worm, isprevalent in hot, humid climates, and it has become more widespread asirrigation projects have enlarged the habitat of the freshwater snails thatare the parasite’s hosts for part of its lifecycle.
50. Often incorrectly referred to as a tidal wave, a tsunami, a seismic sea wave that can reach speeds of up to 150miles per hour and heights of up to 200 feet, is caused byunderwater earthquakes or volcanic eruptions.
51. The single-family house constructed by the Yana, a Native American people who lived in what is now northern California(同位语修饰yana), was conical inshape, its framework of poles overlaid withslabs of bark, either cedar or pine(同位语修饰bark), and banked withdirt to a height of three to four feet. (its framework overlaid and banked作为独立主格)
52. On August 13, 1868, the warship U. S. S. Wateree, anchored in the harbor of Arica(定语修饰warship), off the coast of whatis now northern Chile(定语修饰harbor), rode on the crest of a tsunami (seismic sea wave) and came torest in the Atacama Desert, some three miles up the coast and almost twomiles inland from its initial anchorage.
53. .In A. D. 391, as a result of the destruction of thelibrary at Alexandria, the largest of the ancient world(定语修饰destruction), later generations lost all but theIliad and Odyssey among Greek epics, most of the poetry of Pindar and Sappho,and dozens of plays by Aeschylus and Euripides.
54. Because Miranda, the smallest moon ofUranus, has a large number of different surface features, includingcraters, mountains, valleys, and fractures, some astronomers suggest that atone time the surface broke apart as a result of repeated impacts, after which thefragments rejoined through mutual gravitational attraction.
55. (GWD21-Q12) Birds known as honeyguides exhibit a unique pattern ofbehavior: the bird leads another animal, such as ahoney-badger or a human(同位语修饰animal), to a bees’ nest by chattering asit flies ahead; after the larger animal takes honey, the bird eats the waxand bee larvae.
56. Fossils of the arm of a sloth, found inPuerto Rico in 1991, have been dated at 34 million years old, making thesloth the earliest known mammal on the Greater Antilles islands.
57. The normative model of strategic decision-making suggests that executives examine a firm’s external environment and internal conditionsand, usingthe set of objective criteria derived from these analyses(做状语修饰decide,how), decide on a strategy.
58. In the shark’s jaws, many spare teeth lie in seemingly limitless reserve(), eachoneready to slide into the appropriate position whenever an active tooth is lostor worn down.
59. Constructed at least as early as the Sui dynasty (A.D. 581-618), theAltar of Heaven, the oldest known altar used inChinese state religious practice, is more than 1,000 years older than asimilar one in Beijing and is the only altar found so far that predates the Qing dynasty (A.D.1644-1912).
60. Caribou are wary animals with excellent hearing, so to stalk themover the treeless landscape and get close enough to kill one with nothing but a handheldlance, as Dorset people did, requiredexceptional hunting skill.
61. The steel industry has changed radically over the last two decades, aslarge, integrated companies, such as Bethlehem Steel, thatonce conducted operations from mining at one end of the process to shipping at the otherhave greatly downsized, or in some cases shut down altogether.