Unit 6 Section B Vocabulary in Use课件 2025-2026学年人教版 英语八年级下册

该初中英语课件聚焦形容词否定前缀（un-, in-/im-）及-ed/-ing形容词用法，课堂导入通过反义词对比（如polite-impolite）建立感知，结合“bad manners”实例（如It's impolite to throw rubbish）引出用法，后续练习（2a区分前缀、2b句子填空等）搭建从理解到应用的学习支架。 其亮点在于融合语言能力与文化意识，通过“Crossing Cultures”主题，如2d短文填空围绕亚洲筷子使用礼仪，让学生在语言练习中理解文化习俗。任务设计注重思维品质，如2a对比un-和in-/im-规则培养分析能力，助力学生提升词汇转换与跨文化表达能力，为教师提供结构化资源，便于高效教学。

Unit 6 Crossing Cultures Vocabulary in Use 1 By the end of this lesson,we will be able to: 1. master the use of negative prefixes (un-, in- / im-) for adjectives; 2.complete vocabulary transformation, sentence filling, and passage completion tasks. 2 Lead-in polite &impolite tidy &untidy healthy& unhealthy polite & impolite proper & improper safe & unsafe polite & impolite What do you think of the bad manners？ 通过词汇扩展，学生可以积累更多与主题相关的短语，扩大词汇量。 3 What do you think of the bad manners？ impolite /ˌɪmpəˈlaɪt/ It's impolite to be late. It's impolite to wear slippers. 4 What do you think of the bad manners？ incorrect /ˌɪnkəˈrekt/ Cheating is incorrect. 5 What do you think of the bad manners？ untidy /ʌnˈtaɪdi/ It's untidy and impolite to throw rubbish everywhere. 6 2a Write down the negative forms of the adjectives in the box using un- or in- / im-. safe formal proper possible friendly direct tidy healthy perfect important common correct un- :___________________________________ in- / im- : ______________________________ Tip: To find out the meanings of un-, in-, and im-, as well as their specific uses and differences in different situations, look them up in dictionaries and ask others. 7 2a Write down the negative forms of the adjectives in the box using un- or in- / im-. safe formal proper possible friendly direct tidy healthy perfect important common correct un- :___________________________________________________ _________________________ in- / im- : ______________________________________________ Notes: un-：最“通用”，可以加在很多形容词、副词、动词前（比如：unhappy 、unfair 、unlike ）； in- 及变体（im-、il-、ir-）： 多用来加在形容词前（少用于动词/副词）； 有“拼写规则”：比如 im- 常加在 p/b/m 开头的词前（impossible 不可能） 简单记：un- 用得最广，in- 及变体更“挑”单词开头的字母 unsafe, unfriendly, untidy, unhealthy, unimportant, uncommon informal, improper, impossible, indirect, imperfect, incorrect 通过词汇拓展，让学生积累更多与主题相关的短语，扩大词汇量。 8 How do we describe manners? It's impolite to be late. It's impolite to laugh at others. It's untidy and impolite to throw rubbish everywhere. It's impolite to draw on the test paper everywhere. Cheating is incorrect. Drinking Coca-Cola is unhealthy. Running a red light is unsafe. What can we learn？ 1. It's + [adj.] + to do sth. 2. [Doing sth.] + is + [adjective]. 1. It's + [adj.] + to do sth. 2. [Doing sth.] + is + [adj.] 9 2b Complete the sentences with the correct forms of the adjectives in brackets. 1. Saying “hi” is an ______ way to greet others. (formal) 2. It is ______ to point at people in many countries. (polite) 3.The host is certainly ______ when you enjoy yourself at their party.(happy) 4.People usually dress in formal clothes when visiting some public places such as concert halls.It is _____ to wear shorts, short skirts, or jeans there.(proper) 5. In some cultures, it is OK to be late sometimes. People are ______ even if their meetings don't start on time. (patient) adj.+n. be+adj. be+adj. be+adj. be+adj. 10 2b Complete the sentences with the correct forms of the adjectives in brackets. 1. Saying “hi” is an ________ way to greet others. (formal) 2. It is ______ to point at people in many countries. (polite) 3.The host is certainly ______ when you enjoy yourself at their party.(happy) 4.People usually dress in formal clothes when visiting some public places such as concert halls.It is ________ to wear shorts, short skirts, or jeans there.(proper) 5. In some cultures, it is OK to be late sometimes. People are ________ even if their meetings don't start on time. (patient) adj.+n. be+adj. be+adj. be+adj. be+adj. informal impolite happy improper patient 11 What can we learn? - I feel excited because the movie is exciting. - I feel bored because the lecture is boring. - I feel surprised because the result is surprising. - I feel tired because the work is tiring. - I feel relaxed because the atmosphere is relaxing. -ed分词形容词表人的感受，-ing分词形容词表事物的特征。 12 2c Circle the correct words to complete the conversations. 1. A: Did you understand the rules? I found them confused / confusing. B: I was confused / confusing at first too, but Mr Thompson explained them to me. 2. A: Isn’t it excited / exciting that James will marry Jennifer next month? B: Yes! I’m so excited / exciting, and I can’t wait to congratulate them. 3. A: Sally was a little embarrassed / embarrassing just now. She wished her friend happy birthday on the wrong date. B: Oh no! That can be embarrassed / embarrassing. 13 2d Complete the passage with the correct forms of the words in the box. normal last manner proper challenge In many Asian countries, it is ______ for people to eat with chopsticks. There are many rules and traditions about how to use chopsticks ______. Firstly, don’t stick your chopsticks into food. That is very bad ______. Secondly, don’t pull dishes close to you with your chopsticks. Thirdly, don’t point at others with your chopsticks or wave them about when you talk. ______, hold your chopsticks correctly. Using chopsticks looks easy, but it can actually be a little ______. The key thing is to keep trying. With plenty of practice, anyone can learn to use chopsticks well! It is +adj.+for sb to do sth. be+adj. adj.+n. 提高学生在语境中准确选词填空的能力，以及在实际写作和表达中灵活地对词汇进行变型的能力。 14 2d Complete the passage with the correct forms of the words in the box. normal last manner proper challenge In many Asian countries, it is ______ for people to eat with chopsticks. There are many rules and traditions about how to use chopsticks ________. Firstly, don’t stick your chopsticks into food. That is very bad ________. Secondly, don’t pull dishes close to you with your chopsticks. Thirdly, don’t point at others with your chopsticks or wave them about when you talk. _____, hold your chopsticks correctly. Using chopsticks looks easy, but it can actually be a little ____________. The key thing is to keep trying. With plenty of practice, anyone can learn to use chopsticks well! normal challenging Lastly properly manners 15 Writing Maria’s Manners Notebook Scene Recording  In the ______ (classroom/canteen), I see people ______.  Manners check It’s ______ (polite/impolite) to ______.  Doing _____ is ______. Feelings $Findings 基础版（必做）： I feel ______ (happy/surprised) because_____.  进阶版（选做）：  In China, ______; In the UK, maybe ______.  16 Check your presentation Present your poster to the class. language correct form(形式正确) accurate meaning(意义精确) proper use(使用恰当) poster design creativity(创意) performance confidence(自信) OK Good Excellent 表演过后让学生进行投票 Politeness costs nothing and gains everything. 礼貌不花费什么却能收获一切。 18 19 1. Saying “hi” is an informal way to greet others. 这是一个主系表结构的句子，“Saying ‘hi’” 是动名词短语作主语，表示一件事情；“is” 是系动词；“an informal way” 是表语；“to greet others” 是动词不定式短语作后置定语，修饰 “way”。 常见例句： Reading books is a good way to get knowledge.（读书是获取知识的一种好方式。） 20 2. It is impolite to point at people in many countries. 这是 “it is + 形容词 + to do sth” 的句型，其中 “it” 是形式主语，真正的主语是后面的动词不定式短语 “to point at people in many countries”；“impolite” 是形容词，作表语。 常见例句： It is important to study hard.（努力学习是重要的。） 21 22 一、词的适当形式填空 1. The street is _________ (safe) at night, so we should be careful. 2. It's __________ (proper) to shout in the library. 3. We had an _________ (formal) talk about our plan yesterday. 4. It's _____________ (possible) for me to finish the work in an hour. 5. The dog looks _____________ (friendly), so I don't dare to touch it. improper informal impossible unsafe unfriendly 23 二、句型转换 It is polite to shout at others.（改为否定句） 2. He is able to solve the problem.（改为否定句，用 un- 相关形式） 3. It is important to learn English well.（改为一般疑问句） It isn't polite to shout at others. He is unable to solve the problem.  Is it important to learn English well? 24 三、翻译 1.用筷子指着别人是不礼貌的。 2.在音乐会上穿牛仔裤是不合适的。 3.他对陌生人不友好。   It is impolite to point at others with chopsticks.   It is improper to wear jeans at the concert. He is unfriendly to strangers. 25 26 Write a short essay to introduce a cultural custom you are familiar with. Basic homework Practical homework Create a "Cultural Heritage Poster". The content of the poster should include an introduction to the cultural heritage, its characteristics, and its impact on people's lives, etc. Extended homework Write down the words, phrases and sentences in this lesson. 27 $