Unit 3 Section Ⅳ（课件PPT）-【精讲精练】2026-2027学年高中英语选择性必修第一册（北师大版）

该高中英语课件围绕“Conservation”主题，系统梳理重点单词（如packaging、reusable）、短语（set out、have an impact on）及句型（Why not+动词原形建议句型），通过基础词汇到拓展词形转换（如transportation→transport）的递进设计，搭建连贯学习支架，帮助学生衔接前后知识。 其亮点在于分层落实核心素养，通过核心词汇多义辨析（如set out的“着手”“出发”用法）和即学活用练习（完成句子、语法填空），提升语言能力与思维品质，结合环保主题渗透文化意识。讲练结合的教学方法让学生高效巩固知识，教师可直接用于课堂教学，提升教学效率。

Section Ⅳ　Lesson 2 UNIT 3　CONSERVATION 栏目导航 UNIT 3　CONSERVATION 1 栏目导航 基础知识•新知落实 01 核心知识•关键能力 02 随堂演练•巩固提升 03 课时作业•知能达标 04 栏目导航 UNIT 3　CONSERVATION 1 基础知识•新知落实 栏目导航 栏目导航 UNIT 3　CONSERVATION 1 packaging wrap chopsticks realistic 栏目导航 UNIT 3　CONSERVATION 1 transport innovation reuse collect awareness 栏目导航 UNIT 3　CONSERVATION 1 anxiously anxiety consume waste dirty 栏目导航 UNIT 3　CONSERVATION 1 set out pick...up on one's way home do away with instead of sound like 栏目导航 UNIT 3　CONSERVATION 1 have an impact on... throw away take steps be committed to 栏目导航 UNIT 3　CONSERVATION 1 why wrap when agreeing and disagreeing 栏目导航 UNIT 3　CONSERVATION 1 核心知识•关键能力 栏目导航 栏目导航 UNIT 3　CONSERVATION 1     栏目导航 UNIT 3　CONSERVATION 1 栏目导航 UNIT 3　CONSERVATION 1 were setting off fireworks was set up set out to work out/set about working out set them down set aside 栏目导航 UNIT 3　CONSERVATION 1     栏目导航 UNIT 3　CONSERVATION 1 栏目导航 UNIT 3　CONSERVATION 1 unaware awareness 栏目导航 UNIT 3　CONSERVATION 1 As far as I am aware/As far as I know was not aware of the danger 栏目导航 UNIT 3　CONSERVATION 1     栏目导航 UNIT 3　CONSERVATION 1 栏目导航 UNIT 3　CONSERVATION 1 anxiety Anxiously was too anxious to leave 栏目导航 UNIT 3　CONSERVATION 1     栏目导航 UNIT 3　CONSERVATION 1 consumers consumption consume less meat consumes a lot of fuel 栏目导航 UNIT 3　CONSERVATION 1     栏目导航 UNIT 3　CONSERVATION 1 栏目导航 UNIT 3　CONSERVATION 1 How/What to join Shall we meet why go there 栏目导航 UNIT 3　CONSERVATION 1 随堂演练•巩固提升 栏目导航 栏目导航 UNIT 3　CONSERVATION 1 aware realistic wrap 栏目导航 UNIT 3　CONSERVATION 1 collections chopsticks 栏目导航 UNIT 3　CONSERVATION 1 awareness of for anxiety 栏目导航 UNIT 3　CONSERVATION 1 up a protecting on 栏目导航 UNIT 3　CONSERVATION 1 课时作业•知能达标 栏目导航 课时作业•知能达标 栏目导航 UNIT 3　CONSERVATION 1 谢谢观看 栏目导航 UNIT 3　CONSERVATION 1 Ⅰ.重点单词 基础单词 1．_________ n.包装盒(瓶、袋)，包装材料 2．____ vt.包，裹 3．__________ n.筷子 4．_________ adj.现实的，实际的 拓展单词 5．transportation n.交通运输系统，运输方式→_________ v.运输 6．innovative adj.新颖的，创新的，革新的→__________ n.创新；革新 7．reusable adj.可再使用的，可重复使用的→_____ v.再使用，重复使用 8．collection n.收集；收藏品；专辑→_______ vt.收集；募捐 9．aware adj.意识到的，明白的→_________ n.意识，了解，觉察 10．anxious adj.焦虑的，不安的→_________ adv.焦虑地，担忧地→_______ n.忧虑，焦虑，担心 11．consumer n.消费者→_______ vt.消费，吃喝 12．_____ n.浪费→wasteful adj.浪费的，挥霍的 13．dirt n.灰尘，尘土→_____ adj.脏的，布满灰尘的 Ⅱ.重点短语 1．_______开始做某事，着手进行 2．_________拿起，捡起 3．_________________在某人回家的路上 4．____________废除，消灭，去掉 5．__________代替，而不是 6．__________听起来像是 7．____________________对……有影响 8．__________扔掉；摒弃 9．__________采取措施 10．_______________献身于，致力于 Ⅲ.重点句型 1．Why (not)＋动词原形句型，表示委婉的建议 I mean，________ a coconut in plastic? 我是说，为什么要用塑料包装椰子呢？ 2．省略句 Pay attention to the intonation used _____________________________． 注意同意和不同意时使用的语调。 [重点词汇] 1．set out开始做某事，着手进行 set about (doing) sth　着手，开始做 set aside　把……放一边；留出，空出 set off　出发，动身；使爆炸；引起 set down　写下，记下 set up　成立，建立 I gathered up my wallet and room key and set off. (2025·九省联考) 我拿起钱包和房间钥匙，便出发了。 He set out to paint the whole house but finished only the front. ＝He set about painting the whole house but finished only the front. 他着手粉刷整栋房子，但只刷完了前面的部分。 [即学活用] 完成句子 ①A great many boys __________________________(在放烟花) in the street during the Spring Festival. ②Once the club __________(成立)，the members immediately _________________________________________(立即着手制定) the rules and _____________(把它们记下来).It was planned that every member should _________(腾出) Saturday mornings to clean the park. 2．aware adj.意识到的，明白的 be/become aware of...　意识到 as far as I am aware(＝as far as I know)　据我所知 make sb aware of　使某人知道/意识到 raise awareness of　提高……的意识 the awareness of...　……的意识 unaware adj.　无意的；未察觉到的 She was well aware that the two boys were at risk and she needed to take some measures urgently. 她很清楚这两个男孩有危险，她迫切需要采取一些措施。 It is necessary to make people aware of the importance of protecting wild animals. 提醒人们注意保护野生动物的重要性是很有必要的。 [即学活用] 单句语法填空/完成句子 ①She hadn't read the letter and so was _______(aware) of its contents. ②We launch this campaign to raise ____________ (aware) of environmental protection among teenagers. ③___________________________________(就我所知), no one really understands why that works. ④She ___________________________(没有意识到危险)，and she walked into the depth of the forest. 3．anxious adj.焦虑的，不安的 be/get anxious about sth　为某事感到焦虑 be/get anxious to do sth　急于做某事 be/get anxious that...　对……感到焦虑 anxiously adv.　焦虑地，忧虑地 anxiety n.　焦虑 with anxiety　焦虑地 anxiety for　对……的渴望 Mary is anxious about her mother and now she is anxious to see her. 玛丽为母亲担忧，并且她现在急于想见到她。 He is anxious that there should be no delay. 他迫切希望不会有任何延误。 [即学活用] 单句语法填空/完成句子 ①He closed his eyes and lay still，trying to get rid of _______(anxious). ②_________(anxious)，she took the dress out of the package and tried it on，only to find it didn't fit. ③The interviewee seemed to be too nervous and ________________ ________(急于离开). 4．consumer n.消费者，顾客 consume vt.　消耗，消费 consume resources/time/stores　消耗资源/时间/存储物 consumption n.　消费，消费量 The newly built super market attracts thousands of consumers every day. 新建的超市每天吸引数千名顾客。 [即学活用] 单句语法填空/完成句子 ①Health-conscious _________(consume) want more information about the food they buy. ②He has to cut down on the ___________ (consume) of meat. ③我们选择绿色食物，吃的肉更少了。 We _________________，choosing green food. ④这辆汽车很费燃料。 The car ______________________． [重点句型] (教材P111)I mean，why wrap a coconut in plastic？ 我是说，为什么要用塑料包装椰子呢？ 表示建议的句型 (1)Would you like/love (to do) sth? (2)Shall I/we do sth? (3)Let's... (4)主语＋had better (not) do sth (5)What/How about (doing) sth? [句式分析] why (not)＋do，表示委婉地提出建议。 My question is, “Why go this route？” 我的疑问是，“为什么要走这条路呢？” You need a break.Why not take a fortnight off from work? 你需要休息， 为什么不休假两周呢？ [即学活用] 单句语法填空/完成句子 ①__________ about meeting outside the school gate? ②Would you like _______ (join) me? ③_____________(我们见面) at the school the early morning tomorrow? ④I want to know ____________(为什么去那里). Ⅰ.单词拼写 1．High school students will be better _____ (意识到) of what the real world is like by participating in the community service. 2．It's important to plan out goals that are within _________(实际的) capabilities. 3．I'll take these two skirts.Please ____(包裹) them up for me. 4．Today, her paintings are in the top museum ___________(收藏品) in the world. 5．Many foreigners are used to using __________ (筷子) when they are in China. Ⅱ.单句语法填空 1．Rachel Carson's popular book Silent Spring raised _________(aware) of the dangers of pollution and the harmful effects of chemicals on humans. 2．When visiting another country, you should be aware __ those differences and respect them. 3．Get in touch with them as soon as possible，for they are anxious ___ the news of your arrival. 4．Everyone has a feeling of _______ (anxious), which is a normal reaction to stress. 5．Many of these bags end __ in the ocean where larger ones can trap sea creatures, such as turtles and dolphins. 6．The government requires consumers not to use plastic bags，which is _ good start to protect the environment. 7．There are more and more people all over the country，who are committed to __________ (protect) wildlife. 8．What we do in our daily life has a great impact __ the environment. $