Unit 4 Period 4 Section B（1a-2c）-【金牌导学案】2025-2026学年八年级下册英语同步课件（人教版·新教材）

该初中英语课件围绕Unit 4 "The Wonders of Nature" Period 4 Section B（1a-2c）展开，核心涵盖自然奇观相关词汇、重点句型及珠峰攀登课文内容。课前预习通过分类呈现单词（名、形、副等）和重点句型翻译搭建基础，课文导学以读前略读、读中判断、读后填空任务引导学生从词汇到语篇逐步深入，形成连贯学习支架。 其亮点在于紧扣语言能力与思维品质培养，通过词汇分类记忆、句型即学即练强化语言理解与表达，如only if与if only的语法辨析、risk短语用法探究等环节，提升学生分析比较能力。结构化预习设计与分层课堂小测（填空、选择、翻译）助力学习能力发展，既帮助学生夯实语言基础、提升思维层次，也为教师提供系统教学流程与实用练习资源。

Unit 4 The Wonders of Nature 金牌导学案 1 Period 4 Section B（1a-2c） 1 2 3 4 课前预习 课文导学 重难点梳理 课堂小测 2 单词 名词（n.） 1.攀登者；登山者 ________ 2.距离；遥远 ________ 3.状态；境况 _________ 4.度；度数；程度 _______ 5.悬崖；峭壁 _____ 6.死亡；毁灭；破灭 ______ 7.同队队员；队友 _________ 8.肩膀；肩部 _________ 9.梯子；阶梯；途径 _______ 10.好奇心；求知欲 _________ 11.追求的目标；野心；雄心 _________ 12.探险者；勘探者 ________ 13.类型；种类 _____ 14.旅行者；游客 ________ climber distance condition degree cliff death teammate shoulder ladder curiosity ambition explorer type traveller Period 4 Section B（1a-2c） 课前预习 3 单词 动词（v.） 15.生存；存活；艰难度过 ________ 16.测量；量度为 ________ 17.使……冒风险（或面临危险） _____ 18.吸引；招引；引起（反应） _______ survive measure risk attract 续表 Period 4 Section B（1a-2c） 课前预习 4 单词 形容词（adj.） 19.位于；坐落在 _______ 20.北部的；向北的 _________ 21.可能变化的；易变的；常变的 ___________ 22.有决心的；坚决的 ___________ 23.有危险（或风险）的 ______ 24.南部的；向南的 _________ 25.淡水的；淡水中生长的 __________ 26.好奇的；求知欲强的 ________ 27.自然的；天然的；天生的 _______ located northern changeable determined risky southern freshwater curious natural 续表 Period 4 Section B（1a-2c） 课前预习 5 单词 副词（adv.） 28.成功地；顺利地 ___________ 29.仅仅；只；简单地 _______ 介词（prep.） 30.在（或向）……上面；超过 ______ 短语 31.一点一点地；逐渐地 __________ successfully simply above bit by bit 续表 Period 4 Section B（1a-2c） 课前预习 6 重点句型 32.但只有最优秀的登山者才能到达顶峰，而且前提是他们首先要在恶劣的环境中活下来。 But only the best climbers reach the top,and that is _____ ___ they survive the terrible conditions first. 33.人们说它高得连鸟儿都不能飞上去。 People said it was ____ high _____ even birds could not reach it. only if so that 续表 Period 4 Section B（1a-2c） 课前预习 7 重点句型 34.登山者们一点一点地向上攀登，最终成功越过了 “第二台阶”。 Bit by bit,the climbers _______ ___________ ____,and they ______ ___ past the Second Step. 35.为什么人们仍然冒着生命危险去攀登世界最高峰呢？ Why do people still _____ _____ _____ to climb the highest mountain in the world？ pulled themselves up made it risk their lives 续表 Period 4 Section B（1a-2c） 课前预习 8 一、读前任务：略读课本P36~P37,1b部分的文本，初步解读。 1. This article mainly tells about the ___________________ and successful climbs of Chinese teams to Mount Qomolangma,as well as the reasons why people keep _________________ to climb this world's highest mountain. challenging attempts risking their lives 2. The height of Qomolangma is _______________ in 2020. 8,848.86 metres Period 4 Section B（1a-2c） 课文导学 9 二、读中任务：判断正（T）误（F）。 1. Only the best climbers can reach the top of Mount Qomolangma,and they don't need to survive terrible conditions.( ) F 2. Before 1960,no one had ever reached the top of Mount Qomolangma from the northern side.( ) T 3. The Chinese national flag flew above Mount Qomolangma for the first time at 4:20 a.m.on 25 May.( ) T Period 4 Section B（1a-2c） 课文导学 10 4. In 1975,the Chinese team brought a ladder to the Second Step to do research.( ) T 5. People risk their lives to climb Mount Qomolangma only because of human curiosity and ambition.( ) F Period 4 Section B（1a-2c） 课文导学 11 三、读后任务：根据课本 1b的内容，请从方框内选择适当的词并用其正确形式填空，使文章完整、连贯。注意每空一词，每词仅用一次，有两词为多余项。 Period 4 Section B（1a-2c） 课文导学 12 change for can however gradual high because curious determine condition another others Mount Qomolangma is one of the world's most amazing wonders. Standing on its peak, you'll feel close to the sky.1._________, only top climbers can reach the summit, and they must first survive the awful 2.__________.The mountain has low temperatures, thin air, steep cliffs, and 3.___________ weather.#2 However conditions changeable Period 4 Section B（1a-2c） 课文导学 13 Before 1960, no one had climbed to the top from the northern side, which was once called “Death Road”.But a Chinese team was 4.___________ to make the attempt. On 24 May 1960, climbers Liu Lianman, Wang Fuzhou, Qu Yinhua, and Gong Bu got to the Second Step.#3 determined change for can however gradual high because curious determine condition another others Period 4 Section B（1a-2c） 课文导学 14 It was 8,600 metres above sea level, so high that even birds 5.________ get there. Liu let his teammates step on his shoulders.6.__________, the climbers pulled themselves up and passed the Second Step. At 4:20 a.m. on 25 May, the Chinese national flag was flown on the world's highest mountain 7.____ the first time.#3 couldn't Gradually for change for can however gradual high because curious determine condition another others Period 4 Section B（1a-2c） 课文导学 15 In 1975, 8.________ Chinese team climbed to the top to do research. They brought a ladder to the Second Step. Until 2007, most climbers from the northern side used this “Chinese Ladder” to climb faster. In 2020, a third team went back to measure its 9._______ —8,848.86 metres.#4 another height change for can however gradual high because curious determine condition another others Period 4 Section B（1a-2c） 课文导学 16 Climbing Qomolangma remains dangerous. Some climbers succeed, while many fail. Why do people still risk their lives to climb it? It's because human 10._________ and ambition are unstoppable. As explorer George Mallory said, it's just “because it's there”!#5 curiosity change for can however gradual high because curious determine condition another others Period 4 Section B（1a-2c） 课文导学 17 重点知识积累（汉译英） 1. 陡峭的悬崖 ___________ 2. 进行尝试 ________________ steep cliffs make the attempt Period 4 Section B（1a-2c） 课文导学 18 1.But only the best climbers reach the top,and that is only if they survive the terrible conditions first.但只有最优秀的登山者才能到达顶峰，而且前提是他们首先要在恶劣的环境中活下来。（P36,1b） 知识探究 only if引导 ______状语从句，表示“ __________________________”或“ ____________”。它引出的条件是一个强制性、排他性的先决条件。意思是要想让主句的情况发生，必须且只能满足only if后面的这个条件。语气比if强烈得多。其基本结构为：主句+only if+条件从句。 条件 只有在……的条件下才…… 唯有当…… Period 4 Section B（1a-2c） 重难点梳理 19 即学即练 （1）You tell me the truth. I will forgive you.（合为一句） ____________________________________________ （2）唯有共同努力，我们才能解决这个问题。（汉译英） ________________________________________________ I will forgive you only if you tell me the truth. We can solve this problem only if we work together. Period 4 Section B（1a-2c） 重难点梳理 20 拓展提升 only if 引导的从句如果放在句首，主句需要进行 ______。这是一种表示强调的正式句式。倒装规则：将主句中的助动词、情态动词或be动词提到主语 ______。 only if和if only的区分： 倒装 之前 含义 句型 语气 only if 只有在……的条件下才……（强调条件） 引导条件状语从句 客观、强制 if only 要是……就好了（表示强烈的愿望或遗憾，相当于 I wish …） 引导虚拟语气从句 主观、感叹、惋惜 Period 4 Section B（1a-2c） 重难点梳理 21 活学活用 （1）I will call you only if there's an emergency.（改为同义句） _________________________________________ Only if there's an emergency, will I call you. （2）________ you promise not to tell anyone else,will I tell you the secret.( ) A A.Only if B.If only C.Unless D.If （3）________ you had called me,I would have come to help you immediately.( ) B A.Only if B.If only C.If D.Unless Period 4 Section B（1a-2c） 重难点梳理 22 2.Climbers must also deal with thin air,high cliffs,and changeable weather.登山者们还必须应对稀薄的空气、陡峭的悬崖和变化无常的天气。（P36,1b） 知识探究 deal with意为“ ____________”， 指处理一个问题或应对一种情况/人。 处理，应对 Period 4 Section B（1a-2c） 重难点梳理 23 即学即练 这个问题太复杂了，我一个人应付不了。（汉译英） ___________________________________________________________ This problem is too complicated for me to deal with on my own. Period 4 Section B（1a-2c） 重难点梳理 24 3.Bit by bit,the climbers pulled themselves up,and they made it past the Second Step.登山者们一点一点地向上攀登，最终成功越过了 “第二台阶”。（P36,1b） 知识探究 bit by bit表示“ ____________________”， 在句中作状语，强调过程的缓慢和艰难。同义表达有：little by little,gradually,step by step。 make it意为“ ______________”，蕴含着经过努力和挑战后最终取得胜利的意味。make it 后面常接介词to或past，表示“ __________________________”。 一点一点地，逐渐地 成功做成某事 成功到达某地或越过某障碍 Period 4 Section B（1a-2c） 重难点梳理 25 即学即练 （1）She saved money __________ until she could afford a new bike. （2）After several attempts,he finally ________ to the final round of the competition. （3）We're hoping to ___________ the summit before sunset. （4）The hiker was exhausted but managed to ____________ the difficult section of the trail. bit by bit made it make it to make it past Period 4 Section B（1a-2c） 重难点梳理 26 4.Why do people still risk their lives to climb the highest mountain in the world?为什么人们仍然冒着生命危险去攀登世界最高峰呢？（P37,1b） 知识探究 risk one's life意为“ ______________”，risk后面可直接跟 ______、 ______或 _________。risk it表示“ ______________________________”， 通常指在没有详细计划或不知道结果的情况下冒险。 risk作名词时，常见固定搭配有：take a risk/risks冒险，at risk处于危险中，at the risk of doing sth.冒着做某事的风险 冒着生命危险 名词 代词 动词-ing 豁出去了，碰碰运气，冒险一试 Period 4 Section B（1a-2c） 重难点梳理 27 即学即练 （1）She didn't want to ___________（lose） her job. （2）It's raining. I think we should _______（it） and have the picnic anyway. （3）我冒昧地问一下，你多大了？（汉译英） ____________________________________________ risk losing risk it At the risk of sounding rude, how old are you? Period 4 Section B（1a-2c） 重难点梳理 28 5.Or,as the English explorer George Mallory put it,it is simply “because it's there”!或者，正如英国探险家乔治·马洛里所言，理由很简单：“因为山就在那里！”（P37,1b） 知识探究 “as … put it,…”是一个非常地道的引述句型，用于引用名人名言、他人言论等,意思是“ __________________”。as在这里是连词，引导 ______状语从句，从句中常用“主语+put it”的结构，动词 put 在这里不是“放置”，而是“ ____________”的意思。 正如……所说/所言 方式 表达，表述 Period 4 Section B（1a-2c） 重难点梳理 29 即学即练 （1）As my coach always _______,“Failure is not the opposite of success; it's part of it.” puts it （2）Steve Jobs once said,“Stay hungry,stay foolish.”（用 “as … put it” 结构改写） ____________________________________________ As Steve Jobs put it,“Stay hungry, stay foolish.” Period 4 Section B（1a-2c） 重难点梳理 30 一、用方框中所给单词的适当形式填空。 survive curiosity attract change success 1. She was ________ about the strange noise outside,so she went to investigate. 2. The team ___________ completed the mission despite the difficult weather. 3. The weather in the mountains is highly ___________,so climbers must be prepared for sudden storms. curious successfully changeable Period 4 Section B（1a-2c） 课堂小测 31 4. Many animals cannot ________ in extremely cold environments without special adaptations. 5. The Great Barrier Reef _______ millions of tourists each year because of its beautiful coral and marine life. survive attracts survive curiosity attract change success Period 4 Section B（1a-2c） 课堂小测 32 二、单项选择。 1. We should protect the ________ environment.( ) B A.nature B.natural C.naturally D.natures 2. The climbers ________ their lives to save the trapped hiker.( ) A A.risked B.measured C.attracted D.survived 3. ________ you practice speaking English every day,will you improve quickly.( ) B A.If only B.Only if C.Unless D.Whether Period 4 Section B（1a-2c） 课堂小测 33 4. He finally ________ becoming a doctor after years of hard study.( ) A A.made it B.risked it C.put it D.dealt with it 5. As my grandmother ________,“A friend in need is a friend indeed.”( ) B A.said it B.put it C.told it D.spoke it Period 4 Section B（1a-2c） 课堂小测 34 三、根据汉语意思完成句子。 1. 他成功应对了所有的困难。 He ______ _____ all the difficulties successfully. 2. 她终于成功到达了山顶。 She ______ ___ ___ the top of the mountain finally. 3. 这座山如此高，以至于我们很难攀登。 The mountain is ____ _____ _____ we can hardly climb it. dealt with made it to so high that Period 4 Section B（1a-2c） 课堂小测 35 4. 我们应该保护自然界的奇观。 We should protect ____ _________ ___ ____ _______ ______. 5. 他们一点一点地完成了这项艰巨的任务。 They finished the hard task ____ ____ ____. the wonders of the natural world bit by bit Period 4 Section B（1a-2c） 课堂小测 36 感谢聆听 37 $