Unit 1 Period 2 Learning About Language（课件）英语人教版选择性必修第二册

该高中英语课件聚焦构词法（前缀、后缀）、表语从句及核心词块，通过教材原文例句引导学生划出表语从句结构、圈画主题词汇，搭建新旧知识联系的学习支架，助力学生系统掌握语言知识。 其亮点在于以“探究-实践-迁移”为主线，通过小组合作归纳表语从句规则培养思维品质，结合词块填空、语法改写等练习提升语言能力，利用思维导图总结知识、分层作业设计发展学习能力。例如情境对话排序、微写作任务等环节，既让学生灵活运用语言知识，又帮助教师高效落实教学目标。

Unit 1 Science and Scientists 高中英语人教版选择性必修第二册 Learning About Language Learning objectives Master word formation rules of prefixes and suffixes, as well as core chunks, and apply them in specific contexts. Grasp the rules of predicative clauses and learn to use this grammar knowledge correctly in practical contexts. Complete a micro-writing task by flexibly using the vocabulary and grammar learned in this period. Content 1. Lead in 2. Word study 3. Grammar study 4.Exercises 5.Filling the blanks 6.Writing in class 7.Summary 8.Assessment 9.Homework 01. Lead in 请看教材原文中的三句话 1.One theory was that bad air caused the disease. 2.Another theory was that cholera was caused by an infection from germs in food or water. 3.The truth was that the water from the Broad Street had been infected by waste. 任务一：划出句中表语从句结构。 任务二：圈画infection、infect、blame等核心主题词汇。 02. Word study 核心前缀梳理： 常见前缀 释义 例词 re- (重复) repeat dis- 否定) disagree micro- 微小) microcosm trans- (转换) transport mis- (错误) mislead un- 否定) unimportant multi- 多样) multiple 1._______tell 复述        → _______________ 2._______like 不喜欢     → ________________ 3._______phone 麦克风    → _______________ 4._______form 转换       →________________ 5._______understand 误解   →_______________ 6._______happy 不开心     → ______________ 7._______media多媒体     → _______________ 加上适当的前缀，构成新的单词。 re retell dis dislike micro microphone trans transform mis misunderstand un unhappy multi multimedia 核心后缀梳理： 常见前缀 释义 例词 -ory 理论 theory -ion 名词化 action -ial 形容词 official -ology 学科 biology -or 人物 visitor -ist 专家 specialist -al 形容词 personal 1.theory_______ (理论的) → ______________ 2.invent _______ (发明者) →______________ 3.biology_______ (生物学家) → ______________ 4.act _______(行动) → ______________ 5.nature_______ (自然的) →______________ 6.benefit_______ (有益的) → ______________ 7.bi_______(生物学) → ______________ 加上适当的后缀，构成新的单词。 tical theoretical or inventor ist biologist ion action al natural ial beneficial ology biology 03. Grammar Study 结合例句，小组合作探究表语从句定义、基本结构、引导词功能及用法差异，自主完成语法体系归纳。 1.One theory was that bad air caused the disease. 2.Another theory was that cholera was caused by an infection from germs in food or water. 3.The truth was that the water from the Broad Street had been infected by waste. 表语从句的句式构成： 主语+ 系动词 + 引导词 + 陈述语序从句 类别 连接词 语法功能 例句 从属 连词 that/whether/ as if/because 从句不缺成分，无实义/是否/好像/表原因 1.My belief is that clean water matters. 2.The problem is whether we find the source. 连接 代词 what/who/ which 从句作主、宾、表语成分 Tom is no longer what he was. 连接 副词 when/where why/how 从句作状语，表时间、地点、原因、方式 This is where Snow collected data. 表语从句知识梳理： 04. Exercises Step 1 核心词块夯实·单句融合输出 1.Many scientists ______________the view that human activity leads to infection. 2.He was ___________ the accident because of wrong driving. 3.The man_____________robbery was questioned. 4.Heart disease is often _____________ bad lifestyle. 用下列语块完成单句填空。 subscribe to（赞同） blame…for（归咎于） suspect…of（怀疑） link…to（关联） subscribed to blamed for suspected of linked to (1)My opinion is ______human activity is closely linked to disease infection. (2)The question is_______you are to blame for this matter. (3)The truth was_______________________（他被怀疑拿走了钱） 表语从句练习。 that whether that he was suspected of taking money Step 2 词汇变形专项练习 1.I feel it is both of you who are___________(blame). 2. Wang Peng ___________(frustrate) with no customers. 3. His action was__________________(contradict) to his words. 4. What we know is that this boy is__________(gift) in playing violin.. 5. It seemed that Mr. Jenkins was________ (infect) with a rare disease. 用本单元单词的适当形式填空。 to blame was frustrated contradictory gifted infected Step 3 课文语境·表语从句规范改写 1. What was it that John Snow showed to the world? What John Snow showed to the world was__________________. 用完成表语从句改写。 how cholera could beovercome 2.What was Snow’s discovery in two particular streets in London? Snows discovery in two particular streets in London was that________ ____________________________________________________. 用完成表语从句改写。 the cholera outbreak was so severe that more than 500 people died in ten days 3.What was Snow determined to find out during the 1854 outbreak of cholera in London? What Snow was determined to find out was why _____________. 用完成表语从句改写。 the outbreak of cholera had caused over 500 deaths within ten days 4. What were the exact places (Snow marked on the map? ) The exact places Snow marked on the map were where_________. 用完成表语从句改写。 all those who died had lived / all the dead people had lived 5. What was the finding that Snow announced? Snow's finding was that __________________________. 用完成表语从句改写。 the water pump was to blame for the spread of cholera / the pump water carried cholera germs / water from the Broad Street pump had been infected by waste Step 4 情境对话·语法综合运用 任务一：用引导词完成单句填空。 A: Absolutely! That was _______happened in our vaccine research. B: It seemed as if all theories worked, but the fact was _______we could not reach an agreement. C: The problem was not __________ theories were good, but which one we should choose. D: What we cared about was not _____field to study, but how to cut vaccine cost. E: The key issue was ________ we started the research at first. as if   that   what   who  when  how why  whose  which  whether what that whether which why 任务二：将上面句子进行排序 正确排序：______→_______→_______→______→______ A C B D E 任务三 根据正确的排列顺序，组内两人分角色朗读，巩固表语从句的用法。 A: Absolutely! That was what happened in our vaccine research. C: The problem was not whether theories were good, but which one we should choose. B: It seemed as if all theories worked, but the fact was that we could not reach an agreement. D: What we cared about was not which field to study, but how to cut vaccine cost. E: The key issue was why we started the research at first. 05. Filling in the blanks 用方框中的词汇完成语篇填空。 multiple decrease severe transform proof blame substantial British scientists believe they may have found a way to fight the common cold. It blocks a key protein in the body cells that is to __1______________ for the spread of cold-causing virus. Targeting he host rather than __2_______was a bit non-traditional but made sense because it was tricky to target the virus. Cold-causing virus are not only of 3_________kinds, they also _4_________rapidly, meaning they can quickly develop resistance to medicine. Researchers are working on making a form of medicine that can be taken directly into one’s lungs, to5____________ the chance of side effects. Though these scientists have made __6__________advances in their research, further___7___________ is needed to make sure such drugs are not so __8_________that they harm the body. blame infection multiple transform decrease substantial proof severe 06. Writing in class 根据教材文本，完成80词左右《John Snow’s Scientific Research》短评。 要求： 1.使用3个以上单元核心词块、2种不同类型表语从句，贴合科研主题、逻辑连贯。 2.表语从句的句式：（1）What Snow proved was that… （2）The truth is that… （3）That’s why… 3.展示评价：小组展示、师生互评，聚焦词块运用、从句规范、逻辑表达 三维度点评纠错。 参考范文 John Snow’s Scientific Research John Snow carried out research into cholera when many people subscribed to the wrong theory. What he wanted to find out was that water infection was linked to the disease. The truth was that the polluted pump water was to blame for the outbreak. That’s why he marked the places where victims lived and collected statistics. His substantial findings helped people realize the importance of safe drinking water. 07. Summary 前缀：re-再、dis-否定、micro-微小 trans-转换、mis-错误、un-否定、 后缀：-ist从业者、-ology学科、 -ion名词、-al/-ial形容词 核心词缀 subscribe to 同意 suspect…of 怀疑 blame…for 归咎 link…to 关联 1. 纯连词：that / whether / because 2. 连接代词：what / who / which 3. 连接副词：when / where / why 核心词块 表语从句 将本节课词汇和表语从句用法用思维导图构建出来。 08. Assessment Learning Objectives Score(1-5) 1.After learning, I am able to know and understand rules of word formation and key words in this unit. 2.After learning, I am able to master the rules of predicative clause in the actual situation. 3.After learning, I am able to combine the usage of words with grammartical rules. 5-完全能；4-基本能；3-不确定；2不太能；1-完全不能 09. Homework 基础层任务： 简要介绍John Snow的霍乱研究过程与价值。 要求：涵盖两种霍乱理论、斯诺核心发现；至少2个表语从句，用到blame、infection、substantial核心词汇。 提升层任务： 校英文报投稿《The Spirit of John Snow》。 要求：简述科研探究过程、评价科学精神；运用that/what/why三类表语从句、4个以上单元词块。 Thanks for your attention! $