2022年河北考研英语一试题真题及答案
19页1、祝您考上理想学校 加油!2022年河北考研英语一试题真题及答案Section I Use of EnglishThe idea that plants have some degree of consciousness first took root in the early 2000s; the term “plant neurobiology” was _1_ around the notion that some aspects of plant behavior could be _2_ to intelligence in animals. _3_ plants lack brains, the firing of electrical signals in their stems and leaves nonetheless triggered responses that _4_ consciousness, researchers previously reported.But such an idea is untrue, according to a new opi
2、nion article. Plant biology is complex and fascinating, but it _5_ so greatly from that of animals that so-called _6_ of plants intelligence is inconclusive, the authors wrote.Beginning in 2006, some scientists have _7_ that plants possess neuron-like cells that interact with hormones and neurotransmitters, _8_ “a plant nervous system, _9_ to that in animals,” said lead study author Lincoln Taiz, “They _10_ claimed that plants have brain-like command centers at their root tips.”This _11_ makes s
3、ense if you simplify the workings of a complex brain, _12_ it to an array of electrical pulses; cells in plants also communicate through electrical signals. _13_, the signaling in a plant is only _14_ similar to the firing in a complex animal brain, which is more than “a mass of cells that communicate by electricity,” Taiz said.“For consciousness to evolve, a brain with a threshold _15_ of complexity and capacity is required,” he _16_.” Since plants dont have nervous systems, the _17_ that they
4、have consciousness are effectively zero.”And whats so great about consciousness, anyway? Plants cant run away from _18_, so investing energy in a body system which _19_ a threat and can feel pain would be a very _20_ evolutionary strategy, according to the article.1. A coined B discovered C collected D issued2. A attributed B directed C compared D confined3. A Unless B When C Once D Though4. A coped with B consisted of C hinted at D extended to5. A suffers B benefits C develops D differs6. A acc
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