【正文】 B.Give reasons to support a guess.C.Stress the importance of the event.D.Describe the process of the search.【答案】 （1）C（2）A（3）B（4）B 【解析】【分析】本文是一篇說明文，科學家們發(fā)現(xiàn)了他們認為是去年墜落地球的流星碎片。這些物體是在美國太平洋沿岸發(fā)現(xiàn)的。一場巨大的流星雨導致了在海中搜索的開始?？茖W家更喜歡在海洋中尋找流星是因為他們可能會發(fā)現(xiàn)更大的巖石顆粒。 （1）考查細節(jié)理解。根據(jù)第二段中的“The group says its aim at present is to examine areas of the ocean that have never been explored before.”可知，the Ocean Exploration Trust的船員目前的目標是研究海洋中未被探索的地方。故選C。 （2）考查推理判斷。根據(jù)第一段中的“Scientists have found what they believe are pieces of a meteor(流星)that fell to the earth last year.”可知，一場巨大的流星雨導致了在海中搜索的開始。故選A。 （3）考查推理判斷。根據(jù)第四段中的“The fact that the particles landed in the ocean, instead of on land, means larger pieces may have survived and can be studied.”可知，科學家更喜歡在海洋中尋找流星是因為他們可能會發(fā)現(xiàn)更大的巖石顆粒。故選B。 （4）考查推理判斷。根據(jù)最后一段中的“The objects recovered from the bottom of the sea likely came from the recent explosion for two main reasons.”可知，作者在最后一段是想給出支持猜測的理由。故選B。 【點評】本題考點涉及細節(jié)理解和推理判斷兩個題型的考查，是一篇科普類閱讀，考生需要準確捕捉細節(jié)信息，并根據(jù)上下文進行邏輯推理，從而選出正確答案。7．犇犇閱讀理解 Hacking isn39。t just for puters and smartphones, According to a study published last week in the journal Science, scientists have found a way to hack a plant39。s genes in order to make it use sunlight more quickly. Someday, the results could increase the amount of food produced around the world. Photosynthesis（光合作用）is the word used to describe how plants use sunlight, water, and carbon dioxide to make their own food. Scientists who conducted the new study say this is a very slow process. Plants use less than 1 percent of the energy available to therm. But by hacking a plant39。s genes, the scientists were able to increase the amount of leaf growth on plants between 14 and 20 percent. Specifically, scientists hacked the plant39。s protective system. Normally, this system is activated when a plant gets too much sunlight, said scientist Krishna Niyogi, coauthor of the study. When the plant senses the light, it gets rid of extra energy and creates more leaves. When the plant is in shade, the protective system is turned off, but the process is slow. Stephen Long is the lead author of the study. He pared a plant39。s protective system to lightadjusting glasses. When a person wears the glasses outside during the day, the lenses（鏡片）darken and lighten depending on how sunny it is. Plants do the same thing, he said. But in plants the adjustment can take anywhere from 10 minutes to an hour. This makes it hard for plants to get the right amount of sunlight needed to create food. The new study sped up the process. By changing the plant39。s genes, the protective system turned on and off more quickly than normal. As a result, leaf growth on the plants scientists used in the study increased. Leaf growth in two plants increased by 20 percent, while leaf growth on a third plant increased by 14 percent. Scientists conducted the study on tobacco plants. But they think the genetic changes will produce the same results in corn and rice. （1）What will happen to the plants when scientists change plants39。 genes？ A.They will bee weaker and weaker.B.They will grow fast to produce more food.C.They will have more beautiful flowers.D.They will depend less on sunlight.（2）Why does the author mention lightadjusting glasses？ A.To warn people of the hot and bright sun.B.To explain the principle of plants39。 protective system.C.To help leaves of the plants absorb sunlight.D.To serve the science experiment smoothly.（3）In the future, the genetic changes will be used to. A.improve tobacco plants39。 qualityB.increase tobacco plants39。 leaves and rootsC.improve the flowers39。 living timeD.increase the production of corn and rice（4）Which of the following can be the theme of this text？ A.Hacking plants for more productionB.Leaf growing more quicklyC.Double production of tobacco plantsD.Photosynthesis and production【答案】 （1）B（2）B（3）D（4）A 【解析】【分析】本文是一篇說明文，科學家通過改變植物的基因，加快光合作用的速度，使植物葉子生長迅速，從而提高植物產(chǎn)量。 （1）考查細節(jié)理解。根據(jù)第一段中的“ scientists have found a way to hack a plant39。s genes in order to make it use sunlight more quickly. Someday, the results could increase the amount of food produced around the world. ”可知，科學家發(fā)現(xiàn)改變植物基因會使植物的光合作用速度加快，將來會增加全球植物的產(chǎn)量。故選B。 （2）考查推理判斷。根據(jù)第四段中的“ He pared a plant39。s protective system to lightadjusting glasses. When a person wears the glasses outside during the day, the lenses（鏡片）darken and lighten depending on how sunny it is. Plants do the same thing, he said. But in plants the adjustment can take anywhere from 10 minutes to an hour. ”可知，作者提到鏡片是為了說明植物的保護系統(tǒng)的工作原理與鏡片相同。故選B。 （3）考查細節(jié)理解。根據(jù)最后一段中的“ But they think the genetic changes will produce the same results in corn and rice. ”但是他們認為基因的改變將在玉米和水稻中產(chǎn)生相同的結(jié)果。可知選D。 （4）考查主旨大意，根據(jù)文章內(nèi)容可知，科學家改變植物的基因，加快光合作用的速度，使植物葉子生長迅速，從而提高植物產(chǎn)量。故選A。 【點評】本題考點涉及細節(jié)理解，推理判斷和主旨大意三個題型的考查，是一篇科研類閱讀，要求考生在捕捉細節(jié)信息的基礎上，進一步根據(jù)上下文的邏輯關系，進行分析，推理，概括和歸納，從而選出正確答案。8．閱讀理解 ESports, short for electronic sports, is one of the growing industries in the world, with prizes totaling around $25 million up for grabs in some tournaments. ESports are professional multiplayer video game petitions. Any video game with a strong petitive element is considered eSports. The petition models itself after traditional professional sports in several ways: it uses corresponding tournament formats, involves player contracts, and is governed by regulations. The athletes who pete in eSports petitions are gamers． The history of eSports dates back to 1972 when some Stanford University students peted in the Intergalactic Space War Olympics for the opportunity to win a oneyear subscription to the Rolling Stone Magazine. ESports pretty much continued on the rather quiet path until the 80s when petitions like the Space Invaders Championship shot them to the spotlight. 2002 marked the beginning of a new era for the sport