Question

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

　　People who studied plants is have found out that plants carry a small electrical charge（电荷）．It is possible to measure this charge with a small piece of equipment called“galvanometer”．The galvanometer is placed on a leaf of the plant，and it records any changes in the electrical field of the leaf． Humans have a similar field which can change when we are shocked or frightened．

　　A man called Baxter used a galvanometer for his studies of plants and was very surprised at his results．He found that if he had two or more plants in a room and he began to destroy one of them-perhaps by pulling off its leaves or by pulling it out of its pot-then the galvanometer on the leaves of the other plants showed a change in the electrical field．It seemed as if the plants were signaling a feeling of shock．This happened not only when Backster started to destroy plants，but also when he destroyed other living things such as insects（昆虫）．

　　Backster said that the plants also knew if someone had destroyed a living thing some distance away，because they signaled when a man who had just cut down a tree entered the room．

　　Another scientist，named Sauvin，achieved similar results to Backster's．He kept galvanometers fixed to his plants all the time and checked regularly to see what the plants were doing．If he was out of the office，he telephoned to find about the signals the plants were sending．In this way，he found that the plants were sending out signals at the exact times when they felt strong，pleasure or pain．In fact，Sauvin could cause a change in the electrical field of his plants over a distance of a few miles simply by thinking about them．

1．What was Backster's discovery？

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A．Plants carry galvanometer．

B．It is possible to measure a small electrical charge with a small piece equipment

called“galvanometer．”

C．The small electrical charge on the leaves of the other plant can change if he destroyed the leaves on one of the two plants．

D．Humans have a similar field which can change when we are shocked or frightened as plants．

2．Backster was surprised at the results of his studies because ________．

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A．he destroyed an insect

B．he destroyed a plant by pulling off its leaves

C．he found that plants seemed to express feelings of shock

D．he found that plants could move and speak after all

3．The scientist called Sauvin ________．

[　　]

A．did not agree with Backster's ideas

B．did not get any results about the electrical charge

C．got different results from Backster's

D．found out some of the same things that Backster did

4．Which of the following is true according to the passage？

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A．The electrical charge plants carry may shock or frighten us．

B．A tree will signal when it has been cut down．

C．Sauvin could only make his plants receive nearby signals．

D．Plants have feelings because they can receive signals without moving．

Answer 1

答案：C;C;D;D
解析：

通过短文第二段He found that if he had two or more plants in a room and he began to destroy one of them-perhaps by pulling of its leaves or by pulling it out of its pot-then the galvanometer on the leaves of the other plants showed a change in the electrical field．得此答案。在此A、C均有一定干扰性。A、C均是人们先于Backster的发现和判断，Backster是在此基础上对galvanometer有了新的发现。 　　这是Backster做完试验得出的结论。这种结果是他们实验前所不知道的。 　　通过短文最后一段我们可以看出，Sauvin把Backster的发现又推进了一步。即在原Backster的发现的基础上，他发现当植物感受到强烈兴奋或疼痛的时候，它们在同一时间发出信号，甚至仅仅by thinking about them Sauvin就可以在几英里远的地方改变植物的electrical field。 　　从短文第一段得此答案。B有较大干扰性，根据短文，在树被砍倒以后，如果砍树的人走进一个有植物的房间，这棵植物就会发出信号，因此B不合题意。