2023届高三二轮复习每周试题精选一

高三每周试题精选一（原卷版） 阅读理解 A It's hard to tell if plants grow faster with classic rock or hip hop. Heidi Appel was a teen when The Secret Life of Plants hit the stores in 1973. This bestselling book devoted a chapter to music's effect on plant growth. Appel read the book. "I was fascinated, but skeptical," she recalls. Appel is now a plant biologist. Seven years ago, she had conversation with colleague Rex Cocroft. He studies leafhoppers. These insects signal each other by sending vibrations through plant leaves. "When an insect starts to eat the leaf, I can't hear a thing," he said. "It’s just deafening." Then Appel recalls, "We looked at each other and said, "Do you think plants might use insect feeding as a source of information?" She and Cocroft designed an experiment to see if plants do in fact "listen" for predators. They placed a piece of reflective tape onto a plant leaf. Now they trained a laser beam onto the tape. If the tape moved even slightly, the signal from the laser light reflected by the tape would vary too. And how quickly it varied with time provided a measure of the leaf's movement. As caterpillars feasted on the plant's leaves, they recorded the vibrations. Then, they recreated them for another plant. Finally, they placed actual caterpillars onto plants that had listened to the feeding sounds. Other plants had received the silent treatment. Two days later，compared to control plants, those that had earlier heard the chewing sounds had made about 30 percent more defense chemicals. “In almost every science fair I've ever judged, some high school student is testing if plants grow better to rock 'n' roll or classical music,” Frank Telewski jokes. But the new study is the first "to clearly show a plant responding to a sound that's related to its survival--the chewing vibration of an insect pest," says Telewski. "If a plant can recognize danger and respond biochemically to up its defenses, that's a key advantage." 24. When Appel was a teen, she doubted whet