Unit 3 Conservation 单元典型句式结构讲解及对应练习 课件-2025-2026学年北师大版高中英语选择性必修第一册

该高中英语课件聚焦“CONSERVATION”单元，系统讲解stop...from doing结构、形容词作状语、with独立主格结构、without含蓄虚拟语气四大核心句式，通过教材原句导入，归纳用法规律，结合随堂练习（含高考真题）及“写美”微写作、句式升级，构建从理解到应用的学习支架。 其亮点在于融合教材实例与高考真题，借助with独立主格结构示意图直观呈现语法，融入环境保护、艺术展等写作话题，助力学生提升语言能力与思维品质。学生能夯实语法并应用于写作，教师可依托系统内容高效开展语法教学。

UNIT 3　CONSERVATION 单元典型句式结构讲解及对应练习 1教材原句] For example,it stops coconut hairs from getting into other food during transport. stop...from doing结构 归纳 随堂练习 单句语法填空 ①Effective customer service policies,obviously,can stop customers from 　　　　　　　(switch) to competitors.  ②The coach adjusted the defense to prevent the star player from 　　　　　　　(dominate) the game.  switching　 dominating 随堂练习 Measures must be taken to stop these animals from being killed. →③Measures must be taken 　　　　　　　　　　　these animals 　　　　　　　　　　　　　　　.  →④Measures must be taken 　　　　　　　　　these animals 　　　　　　　　　　　.(写作话题之环境保护)  to prevent (from) being killed to keep from being killed 2.[教材原句] How often do we arrive at work or school,stressed out,tired and angry? 形容词作状语 归纳 (1)此处stressed out,tired and angry为形容词作状语。形容词作状语时可表示伴随状况、时间或原因等。 (2)作状语的形容词常用来说明句子主语的状态,即常可和主语构成系表关系。 (3)如果用来修饰句中的谓语动词,或修饰整个句子,则应用副词作状语 随堂练习 ①(2023新课标Ⅱ卷)Learn where to look for animals and how to 　　　　　(safe) enjoy your wildlife watching experience.  ②The assignment was incredibly challenging,and Sarah,___________(frustrate) and exhausted,declared she needed a break.  ③The flu was particularly severe,and John,　　 (weak),stayed in bed all day.  safely frustrated weak　 随堂练习 [写美]微写作·背诵 ④考试非常难,学生们感到失望和气馁,希望有机会重考。 The exam was extremely difficult,and the students,_____________________　　　　　　　,hoped for a retake opportunity.  disappointed and discouraged 3.[教材原句] Storms have been getting worse everywhere too,with more hurricanes hitting the US and Central America. with独立主格结构 归纳 点津 with独立主格结构在句中常用作原因、条件、时间、方式或伴随状语,也可置于名词后面作后置定语。 随堂练习 ①(2023新课标Ⅰ卷)With over 2,500 bikes 　　　　　(store) in our five rental shops at strategic locations,we make sure there is always a bike available for you.  ②(2022全国甲卷)In a recent experiment,cockatoos were presented with a box 　　　　　a nut inside it.  ③(2021全国甲卷)...I found myself completely above it and looking at a wonderfully clear view of Skiddaw with the sun 　　　　　(set) in the west.  stored with setting　 随堂练习 [写美]句式升级·背诵 ④All the paintings drawn by us students had been hung,and the gallery was ready for the opening night of the exhibition.(写作话题之艺术展) →　　　　　　　　　　　　　　　　　　　　,the gallery was ready for the opening night of the exhibition.(用with独立主格结构改写)  With all the paintings drawn by us students hung 4.[教材原句]Without forests，we would have no air to breathe，and without clean water we would be unable to survive． without引导含蓄虚拟语气条件 归纳 without引导含蓄虚拟语气条件句既可表示与现在事实相反的假设(主句中用would/could/might/should do)；也可表示与过去事实相反的假设(主句中用would/could/might/should have done)。 有类似用法的还有：with，otherwise/or(否则)，but for(要不是)等。 随堂练习 ①Without diverse creatures and plants，our globe ________ (be) less interesting． ②Mr Brown gave me a helping hand．Otherwise，I would_________ (get)into great trouble． ③But ___ your advice，I would have no way to deal with the problem． would be have got for 随堂练习 如果不是膝盖受伤，他将参加今天的篮球赛。 But for a knee injury，______________________________________．   he would take part in the basketball match today 谢谢 $