【正文】 d before they can confirm that the material came from the explosion. The Nautilus is equipped with two remotely operated vehicles(ROVs), called Hercules and Argus. These robotic submarines help researchers find and collect materials from the seafloor. The fact that the particles landed in the ocean, instead of on land, means larger pieces may have survived and can be studied. For this reason, scientists decided to launch the first intentional search for meteorites from the ocean. Until the latest research, scientists had only accidentally discovered a small number of meteorites from drilling operations. The objects recovered from the bottom of the sea likely came from the recent explosion for two main reasons. First, meteorite particles are basically made of glassy materials that do not tend to last long in seawater. Secondly, they came from what looked like a small hole on the seafloor. Some evidence shows that they came from something that fell.（1）What is the current goal of the crew of the Ocean Exploration Trust? A.To recover the rock particles.B.To observe movements of the universe.C.To study unexplored places of the ocean.D.To examine creatures of the explored ocean.（2）What mainly caused the start of the search in the sea? A.A huge meteor shower.B.Business value of meteors.C.Plenty of natural resources.D.The brainstorm of researchers.（3）Why do the scientists prefer to search for meteors in the ocean? A.They can find meteors more easily.B.They may find bigger rock particles.C.They like to explore strange sea areas.D.They have better submarine equipment.（4）What does the author intend to do in the last paragraph? A.Offer clues for the search.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。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。 （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。8．閱讀短文，從每題所給的四個選項（A、B、C和D）中，選出最佳選項。 Plants are boring. They just sit there photosynthesizing (光合作用) while animals have all the fun. Right? Not so much. A new study has found that there is a long history of interactions between ants and plants. The ant and plant coevolution (協(xié)同進化) started with ants feeding on plants and plants evolving antfriendly features. Plants make a number of different structures that are specific for ant use. Some plants have evolved features that persuade ants into defending them from attack from other insects and even mаmmаl?. Тhе?е ?nсludе hollow thorns that аnt? will live ?n??dе, or ехtra nесtаr (瓊漿) оn lеаvе? or stems for the ants to eat. Some ants will just cheat and take the nectar and run, but some will stick around and attack anything that tries to hurt the plant. Other plants get ants to help them move their seeds around, by providing them with rich food packets attached to the seeds. The ant will pick up the seed and carry it away, eat the food packet, and leave the seed—often in a nutrientrich area where it39。ll grow better, and since it39。s farther away from its parent, they won39。t have to pete for resources. But scientists weren39。t sure how the evolutionary relationship between ants and plants got started. If evolution is an arms race between species developing ways to make use of their neighbors, then scientists wanted to know whether plants or ants fired the first shot. It was a chickenandegg question, whether things started with ants developing behaviors to take advantage of plants, or plants evolving structures to take advantage of ants. The history of ants and plants evolving together goes back to the time of the dinosaurs, and it39。s not easy to tell from fossils who fired the first shot. However, it is a question of little significance. Scientists say their study maters because it provides a look at how these widespread and plex interactions evolved.（1）Some plants attach food packets to their seeds in order to ________. A.reward the antsB.make a fool of antsC.provide nutrition for the seedsD.get the seeds moved around（2）What does Paragraph 2 mainly tell us? A.How plants and ants interact.B.What ants do to protect plants.C.How plants and ants survive attacks.D.Why plants and ants need coevolution.（3）Which is true about the evolutionary relationship between ants and plants? A.Ants depended more upon plants.B.It caused a race for better evolution.C.How it got started was uncertain.D.It was of little value for future studies.（4）What39。s the author39。s purpose of writing the passage? A.To introduce a science research method.B.To inform readers of a latest research finding.C.To arouse readers39。 interest in science research.D.To criticize people39。s traditio