分析句式结构可知,此处应该用副词作状语修饰occurring,再分析句意,用副词naturally表示“自然地”发生。故选K项。 (7)题详解: 考查动词。句意:通过这种方式,大火消除了来自较小树木的竞争,使较大的树木得以茁壮成长。分析句式结构可知,此处用动词作谓语,再根据空格后的competition可知,此处用动词eliminate表示“消除...
结合句意和空格前副词可知,应填入现在分词occurring与副词naturally构成词组作定语,修饰名词clones,意为“自然出现的克隆”,符合句意。故选I项。 (7)题详解: 考查形容词。句意:他们是克隆的原因是两个孩子来自一个卵子,因此他们的基因是相同的。结合空格前数量词one和选项可知,应填入形容词single作定语,修饰名词...
fossil fue:l any naturally occurring carbon or hydrocarbon fuel, such as 5、 coal, petroleum, peat, and natural gas, formed by the decomposition of prehistoric organisms6. latitude:a measure of relative position north or south on the Earths surface, measured in degrees from the equator, which...
But genetically changing wild animals does not sit well with environmentalists. “There’s no need to engineer a mosquito,” says Dana Perls, senior program manager for the emerging technology program at the non-profit F...
When the German chemist Lothar Meyer and (independently) the Russian Dmitry Mendeleyev first introduced the periodic table in 1869-70, one-third of the naturally occurring chemical elements had not yet been discovered.Yet both chemists were sufficiently farsighted to leave gaps where their analyses ...
1.Withoutthesenaturallyoccurringgases,thesun'srayswouldbouncebackintospaceleaving_the_Earth_cold_and_impossible_to_live_on. 没有这些自然产生的气体,太阳光将会被反射回太空中,那么地球将处于寒冷中而不适合生存。 [归纳拓展1] without在本句中表示一个假设的条件,后面的主句中用“would+do”表示对将来的虚拟...
November and December(36) early snow and bone-chilling temperatures in much of the country, part of a year when, for the first time in two(37), record-cold days will likely turn out to have outnumbered record-warm ones. But the U.S. was the exception; November was the warmest ever ...
52、e Buy Nothing Project.)In the past, money's makeup varied from place to place, depending on what was considered valuable there So while some of the world's first coins were made from a naturally occurring hybrid of gold and silver called electrum (金银矿),objects other than coins hav...
Without these naturally occurring gases, the sun’s rays back into space leaving the Earth cold and impossible to live on. 译文 【句法分析】本句为 without 引出的含蓄虚拟条件句,与 相反; leaving...为此刻分词短语作 (A 定语 B 状语) ———含蓄虚拟条件句 虚拟的条件没必要然老是用 if 引导...
In 2015, scientists at the University of Dundee in Scotland found that a naturally occurring protein called BSIA (Bacterial Surface Layer A) was remarkably effective in keeping the treat frozen for longer periods of time. With both teams competing to be the first to get to market, the future...