高考英语阅读理解全程基础训练(21)

2014高考英语阅读理解全程基础训练（21）及答案阅读理解-------BImagine putting a seed in a freezer, waiting 30,000 years, and then taking the seed out and planting it. Do you think a flower would grow?Amazingly, scientists have just managed to do something very similar. They found the fruit of an ancient plant that had been frozen underground in Siberia —a region covering central and eastern Russia — for about 31,800 years. Using pieces of the fruit, the scientists grew plants in a lab. The new blooms have delicate white petals. They are also the oldest flowering plants that researchers have ever revived from a deep freeze.“This is like regenerating a dinosaur from tissues of an ancient egg,” said University of California, Los Angeles biologist Jane Shen-Miller.The plant has a long history. Back when mammoths and woolly rhinoceroses walked the land, an Arctic ground squirrel buried seeds and fruits in an underground chamber near the Kolyma River in northeastern Siberia. The ground became permafrost, a layer of soil that stays frozen for a long time.Recently, Russian scientists dug out the old squirrel hole and found the plant remains 38 meters below the surface. Back at the lab, the team fed nutrients to tissue from three of the fruits to grow shoots. Then the scientists transferred the shoots to pots filled with soil. The plants produced seeds that could be used to grow even more of them.It’s important for scientists to know that plant tissues can still be revived after being frozen for a long time. That’s because many researchers are trying to preserve the seeds of modern plants by freezing them and then storing them in giant lockers at various spots around the globe. One such endeavor, an underground facility in Norway, is called the Svalbard Global Seed Vault. It stores hundreds of thousands of frozen seeds. If a plant ever goes extinct, scientists could bring it back by taking its seeds from the Svalbard or other storage lockers.“No one knows how long they are able to live for, but freezing is basically theformat for many plant conservation attempts nowadays.” Shen-Miller said. It’s a good thing that at least some plants are tough enough to survive the experience.31. How did the fruit originally get underground?A. It was placed there by an animal.B. It was trapped there during the ice-age.C. It was planted there by ancient farmers.D. It was buried there after the earthquake.【答案】A【解析】细节理解题。

根据Back when mammoths and woolly rhinoceroses walked the land, an Arctic ground squirrel buried seeds and fruits in an underground chamber near the Kolyma River in northeastern Siberia.可知最初的时候是有动物放在地下的，故选A。

32. Which of the following was NOT used to recreate the ancient plant?A. Modern nutrients.B. Parts of its fruit.C. Its frozen seeds.D. Plant pots with soil.【答案】C【解析】细节理解题。

根据Russian scientists dug out the old squirrel hole and found the plant remains 38 meters below the surface. Back at the lab, the team fed nutrients to tissue from three of the fruits to grow shoots. Then the scientists transferred the shoots to pots filled with soil.从果实的一部分取组织，然后给这些组织一定的营养，然后把嫩芽放在有土壤的盆里就能再重新栽培出古代的植物，这里没有提到冻了的种子，故选C。

33. Why are scientists interested in this discovery?A. It helps them learn how plant life has changed in the past 30,000 years.B. It can help guide future efforts to protect endangered plant-life.C. It can provide directions for where to look for other ancient plants.D. It proves that all plant life can survive for thousands of years when frozen. 【答案】B【解析】细节理解题。

根据That’s beca use many researchers are trying to preserve the seeds of modern plants by freezing them and then storing them in giant lockers at various spots around the globe. If a plant ever goes extinct, scientists could bringit back by taking its seeds from the Svalbard or other storage lockers.有了这个重要的发现有助于帮助我们未来去保护频临灭绝的植物，故选B。

34. The underlined word “they” in the final paragraph refers to _______.A. plantsB. seedsC. scientistsD. storage lockers 【答案】B【解析】词义猜测题。

根据If a plant ever goes extinct, scientists could bring it back by taking its seeds from the Svalbard or other storage lockers.及able to live for 应该指的是种子能够活多长，故选B。

35. The purpose of the passage is to _______.A. discuss a plant conservation effortB. introduce some ancient plantsC. outline some causes of global warmingD. describe a scientific research project【答案】D【解析】作者意图题。

纵观全文的内容可知短文介绍了一个科研项目，故选D。

阅读理解--------CThe Answer Is Right There above You.If you put a buzzard in a fence six to eight feet square and entirely open at the top，the bird，in spite of its ability to fly, will be an absolute prisoner. The reason is that a buzzard always begins a flight from the ground with a run of ten to twelve feet. Without space to run，as is its habit, it will not even attempt to fly, but remain a prisoner for life in a small jail with no top.The Ordinary bat flying around at night is a remarkable quick-moving creature inand, no doubt, painfully ，until it reaches some slight elevation from which it can throw itself into the air. Then，at once，it takes off like a flash,A bumblebee if dropped into an open tumbler (平底玻璃杯）will be there until it dies, unless it is taken out. It never sees the means of escape at the top，but keepstrying to find some way out through the sides near the bottom.In many ways, there are lots of people like the buzzard, the bat and the bumblebee. They are struggling about with all their problems and frustrations，not realizing that the answer is right there above them.64. Based on Paragraph 1, in what case can a buzzard fly?A. It’ s not old enough.B. It’s caught in a fence.C. It’s a prisoner in a small jail.D. It’s got enough space to run.65 The underlined word “shuffle”（in para. 2) is closest in meaning to “_______A. walk slowly B, mix up C. fly low D. run fast66. How can the bumblebee get out of an open tumbler by itself according to the text?A. It can be taken out,B. It can escape at the top.C. It can get out through the side,D. It can jump up from the bottom.67. The author expresses his views by_______.A making a speech B. using examplesC. making a comparisonD. giving advice【文章大意】抬头就是希望。