05-Unit 5 Period 3 Using Language-【优学精讲】2025-2026学年高中英语选择性必修第一册教用课件(人教版)

该高中英语课件围绕“化学农业与有机农业”主题，通过精读课文（主旨、细节理解）、语法填空构建语篇认知，自查语基（词汇、短语、句型）夯实基础，创意课堂聚焦核心词汇与句型，课堂微练即时检验，形成“输入-内化-输出”的学习支架。 其亮点在于以语篇为载体，融合语言能力（如“not only...but also...”句型对比分析、写作应用）与思维品质（通过农业方式对比培养分析能力），采用“经典例句+高考真题+变式练习”模式，学生能提升语言综合运用能力，教师可直接用于分层教学，高效落实核心素养。

UNIT 5 WORKING THE LAND 1 Period 3 Using Language 2 1 精读课文 语篇理解 2 自查语基 知能落实 3 创意课堂 点面突破 4 课堂微练 即时检验 3 PART 01 精读课文 语篇理解 4 What does the passage mainly talk about?( ) A.What chemical farming and organic farming are. B.The advantages and disadvantages of chemical farming and organic farming． C.How we make good use of land. D.How to increase the yield of crops. √ 返回导航 5 1.What does the word “them” in “who digest them” in paragraph 2 refer to?( ) A.Insects. B.Bacteria. C.Chemicals. D.Crops. √ 返回导航 6 2.Why can't we stop the use of man-made chemicals in agriculture entirely?( ) A.Organic farming costs us a lot of money. B.Organic farming lacks key-technical support. C.Chemical farming brings us huge profit. D.Chemical farming helps meet our need for food. 3.What is the author's attitude towards organic farming?( ) A.Unconcerned. B.Neutral. C.Favourable. D.Negative. √ √ 返回导航 7 4.How is the passage developed?( ) A.By means of examples， illustration and contrast. B.By listing specific data. C.By citing experts' words. D.By presenting the findings of some researches. √ 返回导航 8 In recent days， scientists have discovered that 1.______（use） chemical fertilisers for a long time can sometimes cause damage 2.___ the land and people's health. There are several problems 3._______（cause） by chemical fertilisers. Pesticides kill both harmful and 4._______（help） bacteria and insects. They damage the land， stay in the water for a long time and get into people's bodies through their meals. Crops grown with chemical fertilisers lack nutrition and essential 5._________（mineral）. using to caused helpful minerals 返回导航 9 Organic farming is becoming more popular with some farmers and many customers. It's 6._______（simple）farming without using any chemicals. Organic farmers focus on keeping their soil rich and free of disease through natural means. It also 7.______（keep） the air， soil， water and crops free of chemicals. There are many organic farming methods 8.__________ can make the land healthy and productive. All of these methods try to produce good food and are good for the environment and people's health. simply keeps that/which 返回导航 10 However， organic farming is nowhere near able 9.________（meet） the need. So we still have 10.___ long way to find a suitable solution and we have no idea what the future has in store for us. to meet a 返回导航 PART 02 自查语基 知能落实 12 Ⅰ.阅读词汇·识记 选出与单词对应的汉语释义 A.细菌 B.杀虫剂；除害药物 C.地下通道；地道；隧道 D.贫穷；贫困 E.减轻；缓解 F.肥料 返回导航 13 1.tunnel n. 答案：C 返回导航 2.fertiliser n. 答案：F 3.alleviate vt. 答案：E 4.poverty n. 答案：D 返回导航 15 5.pesticide n. 答案：B 6.bacterium n. 答案：A 返回导航 Ⅱ.核心词汇·练通 根据语境及汉语提示写出正确的单词 1.damage to both ______ and rural environments 对城乡环境的破坏 2.a ______ attack 一次炸弹袭击 3.the _________ industry 化学工业 4._______flour 小麦制的面粉 5.a wine with a delicate fruit ________ 一种带有淡淡的水果味的葡萄酒 6.a range of ________ products 一系列有机产品 7.attract ___________ concern 吸引广泛关注 urban bomb chemical wheat flavour organic widespread 返回导航 17 8._______ food properly 正常消化食物 9.be _________ to happiness 对幸福来说是不可缺少的 10.a bottle of ________ water 一瓶矿泉水 11.__________ energy 替代能源 12.run a ________ store 经营一家食品杂货店 13.the _____ of the problem 问题的根源 14.from every _______ 从各个方面 digest essential mineral alternative grocery root aspect 返回导航 18 Ⅲ.拓展词汇·用活 根据提示写出相应的单词 1._________ ［ɪkˈstenʃn］ n.扩建部分；扩大；电话分机→extend v.扩大 2.__________ ［njuˈtrIʃənl］ adj.营养（物）的→nutritious adj.有营养的；营养丰富的→nutrition n.营养；滋养 extension nutritional 返回导航 19 3.______ ［depθ ］ n.向下（或向里）的距离；深（度）→deep adj.深的 adv.深深地;在深处→deeply adv.深深地→deepen v.（使）变深；加深 depth 4.________ ［InˈtaIəli］ adv.全部地；完整地；完全地→entire adj.全部的；完全的 entirely 返回导航 20 Ⅳ.重点短语·再现 根据语境及汉语提示填入合适的短语 1.（外研选必一U1）Seeing their daughter so much happier has ________（相应地） made Lara's parents more relaxed. in turn 2.Learning you are interested in Chinese culture，I have to ________（向……求助） you for some advice on the topics of the class meeting. turn to 3.（2022·全国甲卷）What we should ______________（关注于） is what we can do for ocean protection instead of shouting slogans. focus on/upon 返回导航 21 4.It's important to ______ your diet ____________（让……不含） excessive sugars for better health. 5.There has been a rapid decline in unemployment since the new policy _______________（施行）. keep free of/from was carried out 返回导航 22 Ⅴ.重点句型·呈现 根据课文语境及汉语提示补全句子 1.when引导时间状语从句 ______________________________（当它们第一次被引进时）， many farmers welcomed them as a great way to fight crop disease and increase production.（Para.1） When they were first introduced 返回导航 23 2.“not only...but also...”意为“不但……而且……” For example， pesticides can damage the land by ____________________________________________________________（不但可以杀死有害的细菌和昆虫，而且可以杀死有益的细菌和昆虫）.（Para.2） killing not only harmful bacteria and insects, but also helpful ones 返回导航 3.动词不定式作目的状语 Organic farmers also use many other methods ___________________（来使土壤肥沃）.（Para.4） to produce rich soil 4.现在分词（短语）作结果状语 Why different crops are grown is that they put important minerals back into the ground， _______________________________________ _____［使其为下一批作物（的生长）做好准备］.（Para.4） ［分析］ 此句中还含有Why引导的______从句和that引导的______从句。 making it ready for the next batch of crops 主语 表语 返回导航 25 5.that引导同位语从句 What keeps them from doing so is the fact _____________________ _____________________________________________（化学耕作满足了世界各地对食品的巨大需求）.（Para.5） ［分析］ 此句中还含有What引导的______从句，What在从句中作______。 that chemical farming serves the high demand for food around the world 主语 主语 返回导航 26 PART 03 创意课堂 点面突破 27 1 in turn 相应地；转而；依次；轮流；反过来 【经典例句】 ①（教材P<m></m>）This affects the crops grown on the land and， in turn， the animals and humans who digest them. 这会影响到在土地上生长的作物，进而影响到消化它们的动物和人类。 返回导航 28 ②In the process of learning， we accumulate knowledge and skills， which in turn equip us better for the challenges of the future. 在学习的过程中，我们不断积累知识和技能，这些反过来又让我们更好地应对未来的挑战。 （1）by turns 轮流；交替地 take turns to do/（at/in） doing sth. 轮流做某事 It is one's turn to do sth. 轮到某人做某事。 （2）turn down 调低；拒绝 turn out 结果是 返回导航 29 【语段填空/一句多译】 （1）__________________________________ （轮到他做报告了） in class. Unfortunately， the projector was broken. Some classmates suggested using handouts instead， but he ____________________ （拒绝了这个主意）， thinking he could manage without it. In the end， his speech still _____________________________ （结果是相当吸引人的） and he received a lot of praise. It was his turn to give a presentation turned down the idea turned out to be quite attractive 返回导航 30 （2）我和姐姐每天早上轮流开车送孩子们上学。 →My sister and I ____________________________________________ ______ every morning. →My sister and I ______________________________ every morning. take turns to drive/（at/in） driving the kids to school drive the kids to school by turns 返回导航 31 2 essential adj.完全必要的；极其重要的；基本的；必不可少的 【经典例句】 ①（教材P<m></m>）They may look beautiful on the outside，but inside there is usually more water than essential minerals，and they often have less flavour as well. 它们可能外表看起来很漂亮，但里面的水分通常比必需的矿物质多，而且味道也不太好。 返回导航 32 ②（2024·浙江卷1月）Lastly， it promotes a healthy and active lifestyle， which is essential for overall well-being. 最后，它提倡健康积极的生活方式，这对整体福祉至关重要。 （1）be essential to/for 对……是不可缺少的 （2）It is essential for sb. to do sth. 对某人来说做某事是必要的。 It is essential that...（should） do sth. 做某事是必不可少的。 返回导航 33 【单句语法填空/一句多译】 （1）Effective communication is essential ______ the success of any team or organization. to/for （2）在做出推断之前，他必须获得一些可靠的信息，这是至关重要的。 →_________________________________________________ before making inferences. →_________________________________________________________ before making inferences. It is essential for him to get some reliable information It is essential that he （should） get some reliable information 返回导航 34 3 alternative n.可供选择的事物 adj.可供替代的；非传统的 【经典例句】（教材P<m></m>）As an alternative， some farmers have switched to organic farming，and many customers have turned to organic food when they shop at the local grocery. 作为一种选择，一些农民转向有机耕作，许多顾客在当地杂货店购物时也转向有机食品。 （1）an alternative to （doing） sth. （做）某事/某物的替代品 have no alternative but to do sth. 别无选择只好做某事 （2）alternatively adv. 可供选择地 返回导航 35 【单句语法填空/完成句子】 （1）The Internet also provides us with a cheap alternative ___ communicating with others. to （2）失败是成功之母。有时候，为了取得成功，我们别无选择，只能勇敢地面对失败，并从中吸取教训。 Failure is the mother of success. Sometimes， in order to succeed， we __________________________________________ and learn from it. ［应用文写作之演讲稿］ have no alternative but to face failure bravely 返回导航 36 &1& “别无选择只好做某事”的其他表达形式： （1）have no choice but to do sth.; （2）can't choose but do sth.; （3）can do nothing but do sth. 返回导航 37 4 “not only...but also...”意为“不但……而且……” 【经典例句】 ①（教材P<m></m>）For example， pesticides can damage the land by killing not only harmful bacteria and insects， but also helpful ones. 例如，农药不但可以杀死有害的细菌和昆虫，而且可以杀死有益的细菌和昆虫，从而破坏土地。 返回导航 38 ②（译林选必一U3）Its value is down not only to its great scale， artistic quality and attention to detail，but also to its representation of daily life. 它的价值不仅在于其巨大的规模、艺术家的素质和对细节的关注，还在于它对日常生活的表现。 返回导航 39 （1）“not only...but also...”中also可以省略，也可省略but只保留also； （2）“not only...but also...”连接的两个并列成分作主语时，谓语动词的数遵循“就近原则”； （3）“not only...but also...”连接两个句子且把not only置于句首时，not only部分要用倒装语序。 返回导航 【单句语法填空/句式升级】 （1）Not only the foreign students but also the teacher _________________（attract） by the authentic Chinese tea culture so far. has been attracted （2）Through the exhibition， you can not only admire wonderful pictures，but also have a better understanding of the art of traditional Chinese painting. →Through the exhibition， ____________________________________ _______，but you can also have a better understanding of the art of traditional Chinese painting. （倒装）［应用文写作之活动介绍］ not only can you admire wonderful pictures 返回导航 41 5 现在分词（短语）作结果状语 【经典例句】（教材P<m></m>）Why different crops are grown is that they put important minerals back into the ground， making it ready for the next batch of crops. 种植不同的作物是因为它们把重要的矿物质释放回土壤，使其为下一批作物（的生长）做好准备。 （1）现在分词（短语）作结果状语，表示自然而然的、意料之中的结果； （2）动词不定式（短语）作结果状语，表示偶然的、意料之外的结果，且前面常有only修饰。 返回导航 42 【单句语法填空/句式升级】 （1）You'd better master some basic Chinese in advance， ________（make） it easy for you to adapt to the new life in Beijing. （2）We reached the hotel at the time as arranged， only __________（tell） there were no rooms available. making to be told （3）A fire broke out without warning， and it caused severe economic loss in that place. →A fire broke out without warning， __________________________ _______________. causing severe economic loss in that place ［现在分词（短语）作结果状语］ 返回导航 43 PART 04 课堂微练 即时检验 44 Ⅰ.品句填词 1.As cities balloon with growth， access to nature for people living in u_____ areas is becoming harder to find. 2.If you are in need of a deadline _________（延长）， simply explain the situation to the professor. 3.With the development of technology， online discussion forums are a convenient a_________ for assignments requiring teamwork. 4.Judging from his confident statements， I was ________（完全地） convinced of his ability to tackle this problem perfectly. rban extension lternative entirely 返回导航 45 5.Tom witnessed the ___________（普遍的） consumption of sugary drinks by kids at his own school. widespread 6.I am writing to ask for your valuable advice on the ________（方面） of traditional Chinese culture which are extremely appealing to foreign friends. aspects 7.After a big meal， it's beneficial to go for a short walk to help your body d______ the food more efficiently. 8.We are exposed to an overwhelming number of __________（化学物质） every day in our air， water and food. igest chemicals 返回导航 46 Ⅱ.词块运用 1.As the seasons change， the colors of the leaves ______________（依次改变）， from green to yellow. 2.As has been mentioned above， all these devices _______________________________ （对远程控制是必不可少的）. change in turn are essential to/for remote control 3.（2022·全国甲卷）Faced with the worrying current situation of oceans， human beings _______________________________________ _________ （别无选择只能彼此合作） to tackle the ocean crisis. have no alternative but to cooperate with each other 返回导航 47 4.The government has implemented policies to _________________________________（使公园没有垃圾）. 5.You should ____________________（专注于你的学习） so that you can build a solid foundation for your future career. keep public parks free of/from litter focus on your studies 返回导航 48 Ⅲ.根据汉语提示并使用本部分句式结构完成下面的小短文 Dear fellow students， On behalf of School Students' Union， I call on all of my fellow students to do whatever we can 1._________________________________（以实现全面发展；动词不定式作目的状语）. to achieve well-rounded development 返回导航 49 First of all， we should have a positive attitude to life. Life 2.___________________________________________________（不但包括快乐的时光，还包括艰难的时刻；not only...but also...）.We should stay positive 3._______________________（当我们面临困难时;when引导时间状语从句）.What's more， it is essential for us to study hard because if we equip ourselves with knowledge， we can achieve academic excellence， 4.__________________________________________［最终为我们的国 consists of not only happy moments but also hard times when we face difficulties eventually making contributions to our country 返回导航 50 家做出贡献；现在分词（短语）作结果状语］. Most importantly， we are supposed to apply what we have learnt to our life so that we can prepare ourselves to shoulder more responsibility. Follow these tips and I am sure we will be able to experience an enjoyable and rewarding teenage life. 返回导航 $