Unit 4 Information Technology Lesson 1 Avatars 知识梳理和练习 课件-2026-2027学年高中英语北师大版必修第二册

该高中英语课件围绕“虚拟替身（Avatars）”主题，系统梳理trick、variety、concern等核心词汇及look forward to短语，结合过去分词作定语、so…that…等语法点，通过例句解析、搭配归纳搭建从词汇理解到语法应用的学习支架，衔接课文语境实现知识递进。 其亮点在于以语言能力培养为核心，通过词汇同根词拓展（如variety-various-vary）、语法仿写（如过去分词作定语句子）及关键能力进阶的阅读理解（如数码遗忘症现象分析），提升学生思维品质与学习能力。采用分层练习设计，学生能夯实基础并提升语用能力，教师可直接应用于课堂分层教学。

UNIT 4　INFORMATION TECHNOLOGY LESSON 1　AVATARS 2026-2027学年高中英语北师大版必修第二册 广东专版 语言知识梳理 基础要求达标 目 录 关键能力进阶 语言知识梳理 1 trick vt. to make sb believe sth which is not true, especially in order to cheat them 欺骗,诱骗,哄骗 He tried to trick me into telling him the truth. Two men tricked her out of several hundred pounds. n. sth that you do to make sb believe sth which is not true, or to annoy sb as a joke 诡计,花招 The kids are always playing tricks on their friends. 单句写作 1.He ____________________________(骗我借给了他) ￡100. 2.She 　　　　　　　 　(被骗走了) her life savings.  3.It is not nice of you to 　　　　　　　　　　　　　(捉弄) your younger sister.  play a trick / tricks on was tricked out of tricked me into lending him ◆常用搭配 (1)trick sb into (doing) sth 诱使某人(做)某事　trick sb out of sth 从某人处骗走某物 (2)play a trick / tricks on sb 捉弄某人 2 variety n. the quality of not being the same or not doing the same thing all the time 多样化,变化 A variety of techniques were used. ◆同根词 various adj. 各种各样的;多种(类型)的 There are various ways to answer this question. vary v. 变化,改变; (大小、形状等)相异,不同,有别 His mood seems to vary with the weather. The scores vary from school to school. ◆常用搭配 (1)a variety of / varieties of 各种各样的 (2)vary with… 随……而变化　vary from… to… 从……到……不等 在空白处填入1个适当的单词或括号内单词的正确形式 1.There are 　　　　　　　(vary) activities to do on Earth Day.  2.Join us to taste a 　　　　　　　　　(vary) of fresh local food and drinks.  3.As they’re handmade, each one 　　　　　　(vary) slightly.  4.The menu in this restaurant varies 　　　　　　　the season.  5.Starting salary varies from ￡ 26,000 　　　　　￡ 30,500, depending on experience.  to with varies variety various 3 concern n. a feeling of worry, especially one that is shared by many people 担忧,忧虑 People show much concern about / for / over violence in the media. n. sth that worries you 担心的事 His main concern is to be able to provide for his family. vt. to be about sth 与……有关 The report concerns the drug traffic in this area. vt. to worry sb 使担心 The state of my father’s health concerns us greatly. vt. to affect sb/sth; to involve sb/sth 影响,涉及,牵涉 Please pay attention because this information concerns all of you. ◆同根词 concerned adj. 担心的;忧虑的;关注的;有关的 She is concerned for / about her weight. He was concerned in this criminal activity. Medical science is concerned with how the body works. concerning prep. 关于;涉及 He asked several questions concerning the future of the company. ◆常用搭配 (1)show / express one’s concern about / for / over 对……表示关心 / 担心 (2)be concerned about / for 关心;挂念　be concerned in… 牵扯进 / 参与…… be concerned with 与……有关;涉及　as / so far as… be concerned 就……而言 在空白处填入1个适当的单词或括号内单词的正确形式 1.Scientists in Louisiana were so 　　　　　　(concern) that they decided to pay hunters $5 a tail.  2.All cases 　　　　　　　　　　(concern) children are dealt with in a special children’s court.  3.The Double Ninth Festival is a day when we show concern 　　　　 　　　　the elderly.  4.Parents limit electronic reading mainly due to 　　　　　　(concern) about increased screen time.  concerning concerned concerns about / for / over 单句写作 5.依我看,这场意外事故和他没有关系,你不必担心他。 　　　　　　　　　　　　　, the accident 　　　　　　　　　　him. You needn’t 　　　　　　　　　　　 him.  be concerned about / for is not concerned with As far as I’m concerned 4 cheat vt. to trick sb or make them believe sth that is not true 欺骗;欺诈 The man cheated the elderly couple out of their property. vi. to act in a dishonest way in order to gain an advantage, especially in a game, a competition, an exam, etc. (尤指在游戏、比赛、考试等中)作弊,舞弊 He cheated in the test. n. a person who cheats, especially in a game (尤指游戏中的)作弊者,骗子 His addiction has turned him into a cheat and a liar. n. sth that seems unfair or dishonest, for example a way of doing sth with less effort than it usually needs 欺骗手段;欺诈行为 It’s really a cheat, but you can use ready⁃made pastry if you want. 在空白处填入括号内单词的正确形式 1.The elderly lady 　　　　　　　　　　　(cheat) of her money.  2.He cheated 　　　　　　　　　　　(dead) when he was rescued from the fire.  ◆常用搭配 cheat sb (out) of sth (尤指用不诚实或不正当的手段)阻止某人得到某物　 cheat death 死里逃生;幸免于难 death was cheated 5 view vt. to think about sb / sth in a particular way 把……视为 He doesn’t view himself as a rebel(叛乱者). vt. to look at sth, especially when you look carefully 看;观看 Thousands of tourists come to view this garden every year. n. a personal opinion about sth; an attitude towards sth (个人的)看法,意见,见解;态度 In my view, the house needs a change of decoration. n. used when you are talking about whether you can see sth or whether sth can be seen in a particular situation 观看;看;视野;视域;视线 Suddenly the mountain comes into view. The house has wonderful views over the valley. n. what you can see from a particular place or position, especially beautiful countryside (从某处看到的)景色,风景;(尤指)乡间美景 This building spoils(毁掉) the view of the whole city. ◆常用搭配 (1)view… as… 把……看作…… (2)come into view 映入眼帘　have a good view of 清楚地看到;饱览　in view of 鉴于;考虑到 in one’s view 在某人看来　take / hold the view that… 持……的观点 [一词多义] 写出下列句中黑体词的含义 1.The view from the top of the tower was spectacular. _________ 2.If we sit near the front of the bus, we’ll have a better view. _________ 3.There is an opportunity to view this film in advance._________ 4.The meeting will give people the opportunity to express their views about the issue._________ 看法 观看 视野 风景 单句写作 5.就当前的情况来看,我们将不得不改变我们最初的计划。 ____________the present situation, we’ll have to change our original plan.  6.在我看来,你应该听从你老师的建议。 _____________, you should follow your teacher’s advice. 7.随着车接近城镇中心,几座高大的建筑映入眼帘。 As the car approached the town centre, several tall buildings ______________. 写作升级(同义句转换) 8.He seemed to regard the whole thing as a joke. He seemed to 　　　　　　　　the whole thing 　　　　　a joke.  as view came into view In my view In view of 6 look forward to期盼,盼望 to为介词,其后可接名词、代词或v.⁃ing作宾语,不接动词不定式。 I’m really looking forward to our vacation. The mother looks forward to meeting her child. ◆拓展提升 look back (on) 回忆;回顾　look down on / upon 轻视;瞧不起　look into 调查;审查 look out for 注意察看;留心　look up to 尊敬;钦佩 在空白处填入1个适当的单词或括号内单词的正确形式 1.The kid is looking forward to 　　　　　　　(go) to the zoo this weekend.  2.As I saw the old photo, I always looked back 　　　　　　　those happy days.  3.Remember to look out 　　　　　　　　　the red light on the road.  4.The police will look 　　　　　　　　the case further.  into for on going 7 These digital identities, known as avatars, are a key part of how people use the Internet to communicate and express themselves.这些被称为虚拟替身的数字身份是人们如何使用互联网进行交流和表达自己的关键部分。 句中“known as avatars”是过去分词短语作后置定语,修饰名词短语digital identities,表示被动的含义,相当于定语从句 which are known as avatars。 ◆拓展提升 过去分词作定语,与所修饰的名词或代词之间是逻辑上的动宾关系;现在分词作定语,与所修饰的名词或代词之间是逻辑上的主谓关系。 Most of the artists invited to the party were from South America.被邀请参加聚会的大部分艺术家来自南美洲。 单句写作 1.第一本把英语作为外语来教的教材是16世纪出版的。 The first textbook _______________________________________________ came out in the 16th century.(write) 2.站在门口的男孩是我表弟。 The boy 　　　　　　　　　　　　is my cousin.(stand)  3.这是个英文网,每天更新。 This is an English web, __________________.(update) updated every day standing at the door written for teaching English as a foreign language 8 Some users worry that they are spending so much time in virtual worlds that they are becoming afraid of meeting people in the real world.一些使用者担心他们在虚拟世界沉溺太久,以至于开始害怕在现实中与人交往。 so… that…如此……以至于……,其中that引导结果状语从句;so是副词,用以修饰其后的形容词或副词,说明其程度的大小。 He was so weak that he couldn’t stand up. ◆拓展提升 such… that…中的such为形容词,后面接名词(名词前可以有形容词修饰)。当that前的名词有表示数量多少的many、 much、 few、 little等修饰时,只能用so,不能用such。 在空白处填入1个适当的单词 1.Everyone was so friendly and like⁃minded 　　　　　　　　it was very easy to feel at home.  2.It’s 　　　　　　　　a boring lecture that all the audiences felt sleepy.  3.There’s 　　　　　　　　much time that we can have a long holiday.  4.It was 　　　　　　　　fine weather that many people went hiking or camping.  写作升级(同义句转换) 5.He is so shy a boy that he always has few words. He is ________________ that he always has few words. such a shy boy such so such that 根据句意和所给的首字母或中文提示,用本课单词的适当形式填空。 1.There are a v　　　　　　　　 of tourist attractions and historical sites in Beijing.  2.He stared at his own i　　　　　　　　 in the mirror.  3.If we v　　　　　　　　 the problem differently, a solution may become more obvious.  4.Benjamin Franklin’s famous lightning e　　　　　　　　 has introduced generations of children to science.   1 基础要求达标 xperiment iew mage ariety 5.At no time will you be allowed in, unless your i　　　　　　　　 has been checked.  6.The design of the room was in a 　　　　　　　　(别致的) style popular in those days.  7.We present a 　　　　　　　　(供选择的同类物品) of films in this year’s festival.  8.He had injured his left hand and was 　　　　　　　　(打字) with the other hand.  9.The form of a city reflects man’s intelligence and 　　　　　　(创造力).  10.There is truly a 　　　　　　　　(担忧) about food additives(添加剂).  concern creativity typing selection fancy dentity 1.I always make sure no one is nearby when I 　　　　　　　　my password to log on to my computer.  2.The young film⁃makers were excited to 　　　　　　　　new themes and techniques.  3.There are different kinds of fruit trees as well as 　　　　　　　　animals on Hope Farm.  4.London 　　　　　　　　the City of Fog at that time.  5.I am 　　 　　　　　　seeing you perform.  a variety of　 look forward to　 be known as　 type in　 experiment with 用方框中所给短语的适当形式填空。 2 looking forward to was known as a variety of experiment with type in 根据例句和黑体词,参照中文提示仿写句子。 1.【例句】 These digital identities, known as avatars, are a key part of how people use the Internet to communicate and express themselves. 【仿写】 那间装饰有鲜花和气球的教室是为今天下午的聚会准备的。 _______________________________________________________________ _______________________________________________________________ 2.【例句】 By the late 1990s, they had been used in web chats. 【仿写】 到上学期末为止,我们已经学习了3 000个单词。 _______________________________________________________________ By the end of the last term, we had learnt 3,000 words. gathering this afternoon. The classroom,decorated with flowers and balloons, is prepared for the 3 3.【例句】 Most people create avatars that have similar features to their personalities and that look more or less like them and act like them. 【仿写】 大多数学生喜欢容易理解且培养他们创造力的课。 _______________________________________________________________ _______________________________________________________________ 4.【例句】 Some users worry that they are spending so much time in virtual worlds that they are becoming afraid of meeting people in the real world. 【仿写】 这个故事是如此有趣以至于我想再读一遍。 _______________________________________________________________ The story is so interesting that I want to read it again. promote their creativity. Most students like lessons that are easy to understand and that can 5.【例句】 Many Internet users realised that their avatars would be seen by many people, not just their friends… 【仿写】 他说他会在公交车站等我们。 _______________________________________________________________ He said that he would wait for us at the bus stop. 阅读课文,在空白处填入1个适当的单词或括号内单词的正确形式。 Avatars are digital images 1.____________ represent Internet users. Very few people knew avatars 2.____________(have) a wide variety of forms and uses in the future when the first simple 2D avatars appeared in 3._________ 1980s. By the late 1990s, people had used avatars in web chats. And nowadays, people can choose an avatar 4._________ a selection of ready⁃made images. 4 that / which would have from the Avatars let you express 5._________(you) and give you lots of room for 6._________(creative). But the use of avatars has also caused a few 7._________(concern). Some users worry that if they spend too much time in virtual worlds, they will be afraid of 8._________(meet) people in the real world. Avatars can also be used to cheat others online. 9._________, some people see avatars in a more positive light. They hope that their avatar will act like a real person and travel around 10._________(big), more exciting virtual worlds in the future. bigger However meeting concerns creativity yourself 根据以下关键信息进行口头转述。 5 关键能力进阶 1 阅读短文,从每题所给的A、B、C、D四个选项中选出最佳选项。 How many phone numbers can you remember by heart? It’s probably fewer than you would like. Actually, you’re not alone. Out of more than 1,000 Americans who were surveyed, more than half said that they couldn’t recall the phone numbers of their friends and neighbours. And 44% said that they couldn’t remember their relatives’ phone numbers. In their eyes, there is no point in filling their heads with phone numbers if they’re all stored in smartphones that are with them almost all the time. In fact, most people are suffering from a sort of digital amnesia(遗忘症). More than 90% of those surveyed agreed that they used the Internet as an online extension of their brains. Rote memorisation(死记硬背) was once an important part of education, but we just need a click or slide now. That’s making us worse at remembering things. Researchers found that when people expected to have access to information online, they were less likely to remember actual facts, but more likely to remember how to find them. As a result, we are already becoming one with our computer tools, growing into interconnected systems that remember less by knowing information than by knowing where the information can be found. However, some believe it isn’t necessarily a bad thing — maybe it gives them more chances to think through things. We certainly have access to more knowledge now than ever, even if it isn’t all stored in our brains.Even so, I still believe that there are more risks to this new world of memory beyond losing our ability to recall some information such as who the 15th president was. That kind of information may always be a click away, but the important things are personal ones, like the way your parents smile at your wedding. It’s harder to recall or find online. If you’re relying on yourself to keep track of those memories, they will be much more meaningful. 语篇导读:文章介绍了很多人因依赖科技来存储、记忆信息,导致对基本信息的记忆力下降这一现象。 1.Paragraph 1 is mainly used to 　　　　.(　　)  A.serve as the background of memory B.introduce the topic C.explain new research D.study people’s memory B 推理判断题。第一段提到了目前一种常见的现象——很多人都不能清楚地记住手机号码,进而引出本文的话题:网络降低了人们的记忆力。故选B项。 2.What is the main cause of people’s suffering from digital amnesia? (　　)  A.Dealing with too many things. B.Seldom thinking about questions. C.Relying on the Internet too much. D.The changes of their memories. C 细节理解题。根据第二段中的“…but we just need a click or slide now. That’s making us worse at remembering things.”可知,过分依赖互联网导致人们患上数码遗忘症。故选C项。 3.What can we learn from the text? (　　)  A.Over 90% people are suffering from digital amnesia. B.People can gain knowledge more easily than before. C.Rote memorisation no longer exists in modern life. D.People find it hard to remember how to find information. B 细节理解题。 根据最后一段中的“We certainly have access to more knowledge now than ever”可知,人们比以前更容易获得知识。故选B项。 4.What is the author’s attitude towards people’s memories now? (　　)  A.Worried. B.Optimistic. C.Disappointed. D.Confident. A 推理判断题。根据最后一段中的“I still believe that there are more risks to this new world of memory beyond losing our ability to recall some information”可知,作者认为人们的记忆力减退有一定的风险,因此作者对这一现象表示担忧。故选A项。 2 阅读短文,从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。 When you are walking on the road, your phone ring invites you to check it. 　　1　　 After texting, your eyes remain glued to the screen, even though you are walking across the street.  　　2　　 This behaviour has aroused debates among lawmakers about whether texting while walking should be illegal. Some cities, such as Honolulu and Rexburg, Idaho, have banned distracted(思想不集中的) walking altogether.  E B But we shouldn’t let that make us less worried. Last year, pedestrian(行人) deaths in the United States were at their highest point since 1990, with distracted drivers and bigger vehicles being the chief culprits(肇事者). 　　3　 “When you’re busy doing secondary tasks like texting, you don’t judge gap distances in traffic as well. You walk slower. You make poor decisions. 　　4　　 That is the main reason of some traffic accidents,” said Mr. Kolosh of the National Safety Council.  C F 　　5　　 I talked to neuroscientists(神经科学家) and psychologists about our conduct. All agreed that texting while walking might be a form of addictive behaviour.  But this article isn’t about pointing fingers. Rather, now is a good time to reflect on why we are so glued to our phones, what we know about the risks and how we can take control of our personal technology rather than let it control us. A A.So why do we do it? B.You type a message. C.You’re not aware of your surroundings. D.We don’t ever want to blame the drivers. E.We all do this kind of distracted walking. F.So being fixed on a screen while walking can’t be safe. G.You put your phone in your bag instead of your pocket. 语篇导读:文章介绍了边走路边看手机的危害。 1.根据上下文可知,第一段创设了边走路边发短信这一情境,手机铃响,你会输入消息,然后继续看屏幕,B项(You type a message.)承上启下,符合语境。该项中的type a message对应下文的texting。故选B项。 2.根据空格后两句可知,这种行为引起了立法者对边走路边发短信是否违法的争论。有些城市已经完全禁止走路时分心。E项(We all do this kind of distracted walking.)引出下文,符合语境。该项中的distracted walking对应下文的distracted(思想不集中的) walking,为原词复现。故选E项。 3.根据上文可知,去年,美国行人死亡人数达到1990年以来的最高点,司机分心和大型车辆是罪魁祸首。由此可知,本句应总结上文,说明边走路边看手机是不安全的。F项(So being fixed on a screen while walking can’t be safe.)符合语境。故选F项。 4.根据上文可知,当你忙于做诸如发短信之类的次要任务时,你不会正确判断交通中的间距。你走得会慢一些,会作出错误的决定。本句应总结上文,说明边走路边发短信让人无法注意周围的环境。C项(You’re not aware of your surroundings.)符合语境。故选C项。 5.根据空后两句可知,作者与神经科学家和心理学家讨论了这种行为。所有人都认为边走路边发短信可能是一种成瘾行为。这解释了边走路边发短信的原因。A项(So why do we do it?)引出下文,符合语境。故选A项。 谢谢观看! $