Unit1 重点知识讲解 2025-2026学年人教版英语八年级下册

该初中英语知识清单系统梳理了人教英语八下Unit1的核心知识体系。从10个核心词汇（含用法、搭配、例句及拓展）出发，延伸至12个重点短语（含用法及例句），进而讲解4类重点句式结构（如特殊疑问词+不定式、There be句型等），最终聚焦语法核心动词不定式（含形式、用法、特殊情况及易错提醒），形成从基础到综合的学习支架。 知识链路按“词汇-短语-句式-语法”逻辑递进，每个知识点均配备核心用法解析、典型例句及易错提醒。通过对比辨析（如deal with与do with的搭配差异）、用法归类（如动词不定式的6大用法）提升思维品质，结构化梳理与实例结合助力语言能力培养，符合新课标核心素养中语言能力与思维品质的发展要求。

人教英语八下Unit1 重点知识讲解 一、核心词汇讲解 1. express /ɪkˈspres/ v. 表达；表示；adj. 特快的 核心用法：及物动词，后接feeling、thought、thanks等抽象名词，固定搭配express sth to sb（向某人表达某物） 例句： She expressed her strong love for this beautiful city with a short poem. He is too shy to express his creative ideas clearly in front of the whole class. 联想拓展：名词expression（表达；表情），高频短语without expression（面无表情） 2. give up 放弃；戒除 核心用法：动词短语，后接名词/代词/动名词，代词作宾语必须放中间，固定搭配give up doing sth（放弃做某事） 例句： My brother decided to give up smoking because it does great harm to his health. Don’t give it up! You are just one small step away from final success. 同义拓展：abandon（正式），quit（口语，表戒除习惯） 3. return /rɪˈtɜːn/ v. 归还；返回；n. 回来；归还 核心用法：①及物动词，归还=give back，固定搭配return sth to sb=return sb sth；②不及物动词，返回=come back，严禁加back（易错点）；③名词，固定短语in return（作为回报） 例句： She will return to her hometown school after she finishes her trip next week. I gave him a handmade gift and he sent me a beautiful postcard in return. 4. deal /diːl/ v. 处理；对付；n. 交易；协议 核心用法：①动词，固定搭配deal with（处理；应对），等同于do with，deal with配how，do with配what（易错点）；②名词，高频短语make a deal（达成协议）、a big deal（重要的事）、It's a deal（一言为定） 例句： Could you tell me how to deal with this difficult problem in a proper way? Don’t worry too much. It’s not a big deal, we can solve it together easily. 5. reduce /rɪˈdjuːs/ v. 减少；降低；缩减 核心用法：及物动词，后接数量、压力、成本、体重等，固定搭配reduce sth by（减少了）、reduce sth to（减少到） 例句： This new plan will help us reduce the cost of the school trip by about 30 percent. The doctor advised her to reduce her weight to keep her body healthy. 6. allow /əˈlaʊ/ v. 允许；准许；使有可能 核心用法：三大高频搭配，allow sb to do sth（允许某人做某事）；be allowed to do sth（被允许做某事，被动）；allow doing sth（允许做某事），严禁说allow sb doing sth（易错点） 例句： My parents allow me to hang out with good friends on Saturday evenings. This big meeting hall allows holding more than 500 people at the same time. 7. strict /strɪkt/ adj. 严格的；严厉的 核心用法：可作定语/表语，两大核心搭配be strict with sb（对某人要求严格）；be strict about sth（对某事要求严格） 例句： My mother is strict about my study and asks me to finish homework on time every day. He is a strict but kind teacher, so all his students listen to him carefully in class. 8. solve /sɒlv/ v. 解决；解答 核心用法：及物动词，后接problem、puzzle等，侧重解决难题、处理棘手问题，solve a problem=work out a problem 例句： Talking patiently is a good way to solve the misunderstanding between good friends. He is smart enough to solve all the difficult problems in the English test easily. 9. regret /rɪˈɡret/ v. & n. 遗憾；懊悔；后悔 核心用法：①动词两大核心搭配，regret to do sth（遗憾要做某事，未做）；regret doing sth（后悔做过某事，已做）；②名词，a great regret（一件憾事） 例句： I regret to tell you that you can’t take part in this important English competition. He felt great regret for being late for his best friend’s birthday party last night. 10. communicate /kəˈmjuːnɪkeɪt/ v. 沟通；交流 核心用法：及物/不及物动词，固定搭配communicate with sb（与某人沟通）；communicate sth to sb（把某事传达给某人） 例句： We should communicate with our parents more often to let them know our thoughts. It’s important to communicate your true feelings to your family members. 二、重点短语 1. be scared of 害怕；恐惧 核心用法：后接名词、代词或动词-ing形式，表示“对……感到害怕” 例句： She is scared of thunder and always hides under the bed when it rains. He was scared of failing the exam and studied day and night. 2. get over 克服（困难）；解决（问题） 核心用法：及物动词短语，后接困难、问题等名词 例句： With the teacher’s help, she got over her fear of speaking in public. We need to get over this financial crisis as soon as possible. 3. up to 正在做；由某人决定；多达/直到 核心用法： 表“正在做”：常用口语 What are you up to?（你在忙什么？） 表“由某人决定”：leave it up to sb（让某人决定） 表“多达/直到”：可接数量或时间 例句： —What are you up to this afternoon? —I’m going to the bookstore. We can leave it up to the team leader to choose the plan. The temperature will be up to 35 degrees tomorrow. 4. give up 放弃 核心用法：后接名词、代词或动名词，代词作宾语必须放在 give 和 up 中间 例句： He gave up playing football after he got injured. Don’t give it up—you’re almost there! 5. in return 作为回报 核心用法：介词短语，通常置于句末 例句： I helped her move to a new house, and in return, she invited me to dinner. He taught me how to play the guitar, and I gave him a book in return. 6. get into 开始做某事；进入 核心用法： 表“开始做某事”：常接习惯、爱好等，如 get into the habit of doing sth（养成……的习惯） 表“进入”：可接地点或状态 例句： She got into the habit of exercising every morning. He got into the university he had dreamed of for years. 7. give it a go 试一试某事 核心用法：口语表达，相当于 have a try 例句： I’ve never tried rock climbing before, but I’ll give it a go. Just give it a go—you might surprise yourself! 8. once in a while 偶尔地；间或 核心用法：副词短语，在句中作状语 例句： I usually cook at home, but once in a while, I eat out with friends. Once in a while, we have a picnic in the park. 9. go on an outing 出外游玩 核心用法：固定短语，outing 指“短途旅行、郊游” 例句： Our family will go on an outing to the beach this summer. They went on an outing to the forest and saw many wild animals. 10. dream of 梦想；希望 核心用法：后接名词、代词或动词-ing形式 例句： He dreams of becoming a scientist in the future. She dreams of visiting the Eiffel Tower one day. 11. so far 到目前为止 核心用法：副词短语，常与现在完成时连用 例句： So far, we have learned 100 new words in this unit. So far, the project has been going well. 三、重点句式结构 1. 特殊疑问词+动词不定式 作宾语（核心句型） 结构说明：what、how、when、where、which等+to do，可作know、ask、decide、learn、wonder等动词宾语，等同于宾语从句，简洁常用 例句： Could you tell me when to start our English corner activity tomorrow morning? They haven’t decided where to go for their interesting school trip this spring. 易错提醒：此结构不可加主语，严禁说how we to improve，直接接动词原形 2. There be 句型（表存在，高频句型） 结构说明：核心结构There be+主语+地点状语，表某地有某物/某人；be动词单复数遵循就近原则；后接doing表正在进行，接to do表要做的事 例句： There are some students reading English aloud in the classroom early in the morning. There will be an exciting English speech contest in our school next month. 句型拓展：There be sb doing sth（某地有某人正在做某事）；There be sth to do（某地有某事要做） 3. It’s + adj. + for sb. + to do sth 句型（高频必考句型） 结构说明：it作形式主语，真正主语是后面的不定式，表“对某人来说做某事是……的”；adj多描述事情性质，如important、necessary、easy 例句： It’s necessary for students to take notes carefully in English class. It’s easy for him to finish the English homework in half an hour. 4. 祈使句+and/or+陈述句（衔接句型） 结构说明：祈使句表条件，and表顺承结果（就会），or表转折结果（否则），陈述句常用一般将来时（will+动词原形） 例句： Listen to the English teacher carefully in class, or you will miss some key points. Keep on reading English passages every day, and your reading skills will improve a lot. 四、语法核心：动词不定式（单元语法重点） 1. 基本形式 to + 动词原形（统称带to不定式），否定形式：not to + 动词原形；无人称和数的变化，不能单独作谓语 2. 6大核心用法（必背，全加粗） 作主语：单个不定式作主语，谓语用三单；常用it作形式主语，结构It+adj./n.+to do sth（避免头重脚轻） 例句：To learn English well needs much practice. = It needs much practice to learn English well. 作宾语：跟在want、hope、decide、try、plan、forget、remember等动词后作宾语 例句：She hopes to visit the Great Wall with her family this summer holiday. 作宾语补足语：跟在ask、tell、want、allow、expect、teach等动词后，构成动词+sb+to do sth结构 例句：Our teacher told us to review Unit1 words and phrases before the test. 作状语：常表目的（to do/in order to do）、结果、原因，位置可在句首或句末 例句：He got up very early to catch the first bus to school.（目的状语） 作定语：放在所修饰的名词/代词之后，表“要做的事”，逻辑上多为动宾关系 例句：I have a lot of English exercises to finish this evening. 疑问词+不定式：作宾语/表语，等同于宾语从句，简洁实用 例句：We don’t know where to find the English dictionary we need. 3. 省略to的4种特殊情况（易错必记，全加粗） 使役动词let、make、have后接宾语补足语，省略to；被动语态中必须还原to 例句：Let him read the text aloud. → He was made to read the text aloud. 感官动词see、hear、watch、notice、feel、listen to后接宾语补足语，省略to；被动语态中必须还原to 例句：I saw her sing an English song yesterday. → She was seen to sing an English song yesterday. 动词help后接宾补，to可省可不省：help sb (to) do sth 例句：She often helps me (to) practice my oral English. 固定搭配：had better (not) do sth；would rather do sth；why not do sth 例句：You had better not be late for English class. 4. 高频易错提醒 return后不能加back，不能说return back，本身已含“返回、归还”之意 allow后接人+to do，接物+doing，不可说allow sb doing sth deal with与do with均表处理，deal with配how，do with配what 不定式作定语，需放在名词后，逻辑动宾，不及物动词需加介词，如a room to live in ( 1 ) 学科网（北京）股份有限公司 $