2021-2022学年高中英语必修一课时巩固提升： Module 5 Period 1.pdf

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1、1 温馨提示：此套题为 Word 版，请按住 Ctrl,滑动鼠标滚轴，调节合适的观看比例，答案解析附后。关闭 Word 文档返回原板块。课时巩固提升课时巩固提升 Plants cant communicate by moving or making sounds,as most animals do.Instead,plants produce volatile compounds(挥发性化合物),chemicals that easily change from a liquid to a gas.A flowers sweet smell,for example,comes from vo

2、latile compounds that the plant produces to attract insects such as bugs and bees.Now scientists have created a quick way to understand what plants are saying:a chemical sensor(传 感 器)called an electronic nose.The“e-nose”can tell compounds that crop plants make when theyre attacked.Scientists say the

3、 e-nose could help quickly detect whether plants are being eaten by insects.But today the only way to detect such insects is to visually inspect(检查)individual plants.This is a challenging task for managers of greenhouses,enclosed gardens that can house thousands of plants.The research team worked wi

4、th an e-nose that recognizes volatile compounds.Inside the device,13 sensors chemically react with volatile compounds.Based on these interactions,the e-nose gives off electronic signals that the scientists analyze using computer software.2 To test the nose,the team presented it with healthy leaves f

5、rom cucumber,pepper and tomato plants,all common greenhouse crops.Then the scientists collected samples of air around damaged leaves from each type of crop.These plants had been damaged by insects,or by scientists who made holes in the leaves with a hole punch(打孔器).The e-nose,it turns out,could iden

6、tify healthy cucumber,pepper and tomato plants based on the volatile compounds they produce.It could also identify tomato leaves that had been damaged.But even more impressive,the device could tell which type of damageby insects or with a hole punchhad been done to the tomato leaves.With some fine-t

7、uning,a device like the e-nose could one day be used in greenhouses to quickly spot harmful bugs,the researchers say.【语篇概述】植物能相互交流吗?你知道它们的交流方式是怎样的吗?.Skim the passage and find the main idea quickly.The passage mainly tells us an e-nose_ _.答案：which can tell us their reactions when crop plants are atta

8、cked.Read the passage again and choose the best answers.1.We learn from the text that plants communicate with each other by_.A.making some sounds 3 B.waving their leaves C.producing some chemicals D.sending out electronic signals【解析】选 C。细节理解题。从文章第一段中的“Instead,plants produce volatile compounds,chemic

9、als that.”可知,植物通过它本身所产生的挥发性化合物、化学物质来进行交流,所以答案选 C。2.What did the scientists do to find out if the e-nose worked?A.They presented it with all common crops.B.They fixed 13 sensors inside the device.C.They collected different damaged leaves.D.They made tests on damaged and healthy leaves.【解析】选 D。细节理解题。从

10、文章倒数第三段可知,为了证实 e-nose的效果,科学家们用受到伤害的叶子与健康的叶子来测试。3.We can infer from the last paragraph that the e-nose_.A.is unable to tell the smell of flowers B.is not yet used in greenhouses C.is designed by scientists at Purdue D.is helpful in killing harmful insects【解析】选 B。推理判断题。从文章最后一段中的“could one day be used in greenhouses to.”可知,e-nose 还没有运用到 greenhouses 中,由此推断 B 是正确答案。关闭 WordWord 文档返回原板块 4