Unit 3 第4课时 Reading for Writing（Word）-【全效作业本】2022-2023学年高中必修第二册英语同步课件及教参（人教版2019）

第4课时　Reading for Writing　 Ⅰ.阅读理解 A Have you wondered what your pets are feeling？When your dog wags(来回摇摆)its tail，does that mean it is happy？A new app called Happy Pets can tell you what's going on. The app uses artificial intelligence(AI)to analyse the facial expressions of cats and dogs.Then it can tell you what breed(品种)your pet is and how it is feeling.It can show the five most common feelings—happy，angry，neutral，sad and scared. Researchers in Australia developed the app.The key technology used in the app is facial recognition，a common use of AI.We can unlock our mobile phones or enter train stations with facial recognition readers.But this is the first time that the tech has been used with animals. The app's AI was first taught to recognise a picture of an animal.Then，it was taught to recognise the facial features of cats and dogs.Next came the most important step—teaching it to detect(察觉)emotions based on certain facial features.For instance，if a dog tightens up its eyes and mouth while changing the position of its ears，this means the dog is scared.To master this skill，the AI programme “saw” and “read” thousands of example images. How accurate are the results？The researchers think they are trustworthy since the app has been tested many times.Interestingly，they have found that cats are harder to read than dogs.In the future，the app might also be able to analyse a pet's body to make its readings more accurate. 语篇解读：本文是一篇说明文。文章主要介绍了Happy Pets这款软件的原理、功能等基本信息。 (　B　)1.What is the app Happy Pets used to do? A．To make pets happy. B．To tell us how the pets are feeling. C．To recognise an animal's picture. D．To unlock our mobile phones. 【解析】 细节理解题。根据第二段中的“Then it can tell you what breed(品种)your pet is and how it is feeling.”可知，这个应用可以说出宠物的种类及它的感受。故选B。 (　D　)2.What does Paragraph 4 mainly talk about? A．What emotions the app can recognise. B．What certain facial features mean. C．How people use the app. D．How the app's AI was trained. 【解析】 段落大意题。根据第四段 “The app's AI was first