Unit 1 Science and Scientists Period 2 Learning about Language（导学案）英语人教版2019选择性必修第二册

Unit1 Science and Scientists Period 2 Learning about Language（导学案）原卷版 【学习目标】 1. 词汇目标：掌握与科学研究相关的前缀（如 re-, dis-, micro-）和后缀（如 - ion, -ology），理解其构词规律并拓展词汇量。 2. 语法目标：学习表语从句的结构、引导词及用法，能正确分析和运用表语从句。 3. 应用目标：通过练习巩固表语从句和构词法知识，提升句子写作和语境应用能力。 【学习重难点】 教学重点 1. 表语从句的引导词（that, whether, what, why 等）及语序规则。 2. 前缀和后缀的含义及构词逻辑。 教学难点 1. 表语从句中虚拟语气的使用（如 suggestion, demand 等词后的从句）。 2. 易混引导词（如 that 与 because）的辨析。 【预习清单】 I. 前缀与后缀基础练习 根据中文释义写出单词，并标注前缀 / 后缀的含义。 re+view（v. 复习）→ 前缀 re - 含义：__________ dis+agree（v. 不同意）→ 前缀 dis - 含义：__________ micro+scope（n. 显微镜）→ 前缀 micro - 含义：__________ infect+ion（n. 感染）→ 后缀 - ion 含义：__________ bi+ology（n. 生物学）→ 后缀 - ology 含义：__________ II. 表语从句初识 分析下列句子中的表语从句，划出引导词并说明其在从句中的成分。 The truth is that the water was polluted. 引导词：____，成分：________ The question is whether he can finish the experiment. 引导词：____，成分：________ This is why John Snow removed the pump handle. 引导词：____，成分：________ 【学习过程】 学习理解 Part 1 ：Discovering Useful Structures ①系动词. 状态类：be/seem/appear/keep/remain/stay 变化类：become/get/turn/grow/fall/come/go 感官类：look/smell/taste/sound/feel ② 引导词 连接代词 what/who/whom/whose/which 在从句中作主/宾/表/定语 连接副词 when/where/why/how 在从句中作状语 that：无实义，不可省略 ； whether：表"是否"（不与if互换） as if/though：表"好像"； because：表原因 ③辨别系动词和引导词 1. One theory was that bad air caused the disease. 2. Another was that cholera was caused by an infection from germs in food or water. 3. It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day. 4. The truth was that the water from the Broad Street pump had been infected by waste. 5. The question is whether they will go by plane or by train. 6. It sounds as if / though someone is knocking at the door. 7. This is because the weather here is cold and wet. 8. That's why Tony got angry with me. 9. He has become what he wanted to be ten years ago. ④ 语序 表语从句需用陈述语序。 错误：The problem is when can we start the research. 正确：The problem is when we can start the research. ⑤虚拟语气 当主语为表示 “建议、命令、要求” 的名词时，如： 一坚持（insist) 二命令（order, command) 三建议（advise, suggest, propose) 四要求（ask, require, request, demand) 表语从句用 “should + 动词原形”，should 可省略。 My suggestion is that we (should) repeat the experiment. Part 2: 前缀与后缀的运用 前缀如re-, dis-, trans-等，后缀如-ion, -ology等，用于改变词根意义，扩展词汇量。通过前缀和后缀的组合，可以形成新的词汇，如: micro-biology（微生物学），disagree（不同意），transformation（转变）等。 ① 前缀释义 re-：again / back (review / return) dis-：not (disagree ) micro-：small (microscope) trans-: change / across, over, beyond (transport / transnational) ② 后缀释义 -ory：of or relating to (sensory) -ion：action or process (collection) -ial: having the characteristics of (beneficial) -ology: a branch of knowledge (sociology) 应用实践 Practice ①选词填空 as if, that, what, who, when, how, why, whose, which, whether A. Absolutely. You may not believe it, but that was ________ happened at the initial stage of our group's research on developing a vaccine for malaria. B. Yes, it is. And it seemed _______ all the theories were useful, but the fact was _____ we couldn't persuade one another that one theory was better than another. C. Exactly. The problem was not about ________ all our theories were equally good, but in deciding _______ theory to depend upon. D. We realised that what we cared about was not _______ aspect we needed to develop a theory in, but rather ______ we can reduce the cost of a vaccine without reducing its effect! E. You're right. At last, we became focused on the key issue, which was ______ we had to carry out the research in the first place. 课堂练习 高考链接 1. （2023 新高考 Ⅰ 卷）The fact is ______ (that/which) we need more time to prepare. The problem is ______ we can't find enough resources. 2. （2022 全国甲卷）That's ______ (why/because) he changed his plan suddenly. That's ______ I didn't attend the meeting yesterday. 3. （2021 新高考 Ⅱ 卷）What we need is ______ (what/that) practical advice. The question is ______ we should do next. 4. （2020 全国 Ⅱ 卷）The challenge is ______ (how/when) we can improve our efficiency. The concern is ______ the new system will work. 5. （2019 全国 Ⅰ 卷）The doubt is ______ (whether/if) they can finish the task on time. The discussion focuses on ______ we should accept the offer. 6. （2023 浙江卷）The reason he was late is ______ (that/because) he missed the bus. The reason for his success is ______ he works hard. 1. 前缀 un-（表否定） （2023 全国甲卷）The results were unexpected, showing that... The new policy seems ______ (fair). What do you think? 2. 后缀 - ance（表抽象名词） （2022 新高考 Ⅰ 卷）We should give full ___________ (assist) to the local community. The doctor emphasized the ___________ (important) of regular exercise. 3. 前缀 dis-（表否定） （2021 全国乙卷）Some people may __________ (agree) with this view. His behavior at the party was completely _______________ (appropriate). 4. 后缀 - ist（表职业或信仰） （2020 新课标 Ⅰ 卷）As a ____________ (science), she devoted her life to research. My dream is to become a famous ______ (art) one day. 5. 前缀 re-（表 “再、重新”） （2019 全国 Ⅲ 卷）The team decided to __________ (build) the bridge after the flood. We need to ________ (think) our approach to solving the problem. 总结 自我评价 迁移创新 作业内容 本节课作业二选一，为分层作业，难度有所区别。基础一般的同学可以选择作业一，基础较好的同学可以选择作业二。 作业一: Finish the exercise on the handout. 任务1: 用适当的引导词填空（参考教材例句及高考真题题型）： ① The reason for his success is ______ he always stays focused.（that/because） ② The problem is ______ we can solve the mystery in time.（whether/how） ③ His dream is ______ he wants to become a leading scientist.（that/what） ④ That’s ______ she changed her research direction suddenly.（why/because） ⑤ The question is ______ the experiment results are reliable.（if/whether） 任务 2：系动词与表语从句匹配练习 从以下系动词中选择合适的词填入句子（每个词限用一次）： be, seem, become, look, sound ① Her explanation ______ reasonable, but we need to verify it. ② The result of the study ______ published in a top journal last month. ③ After years of research, he ______ a respected expert in his field. ④ The theory ______ more convincing with new evidence. ⑤ The challenge ______ how we can apply the findings to real life. 作业二: 以“My Understanding of Science”为题，用至少 3 个表语从句写一段议论文 (80词)。 ( 7 / 8 7 / 8 ) 学科网（北京）股份有限公司 $$ Unit1 Science and Scientists Period 2 Learning about Language（导学案）解析版 【学习目标】 1. 词汇目标：掌握与科学研究相关的前缀（如 re-, dis-, micro-）和后缀（如 - ion, -ology），理解其构词规律并拓展词汇量。 2. 语法目标：学习表语从句的结构、引导词及用法，能正确分析和运用表语从句。 3. 应用目标：通过练习巩固表语从句和构词法知识，提升句子写作和语境应用能力。 【学习重难点】 教学重点 1. 表语从句的引导词（that, whether, what, why 等）及语序规则。 2. 前缀和后缀的含义及构词逻辑。 教学难点 1. 表语从句中虚拟语气的使用（如 suggestion, demand 等词后的从句）。 2. 易混引导词（如 that 与 because）的辨析。 【预习清单】 I. 前缀与后缀基础练习 根据中文释义写出单词，并标注前缀 / 后缀的含义。 re+view（v. 复习）→ 前缀 re - 含义：__________ dis+agree（v. 不同意）→ 前缀 dis - 含义：__________ micro+scope（n. 显微镜）→ 前缀 micro - 含义：__________ infect+ion（n. 感染）→ 后缀 - ion 含义：__________ bi+ology（n. 生物学）→ 后缀 - ology 含义：__________ II. 表语从句初识 分析下列句子中的表语从句，划出引导词并说明其在从句中的成分。 The truth is that the water was polluted. 引导词：____，成分：________ The question is whether he can finish the experiment. 引导词：____，成分：________ This is why John Snow removed the pump handle. 引导词：____，成分：________ 【答案】 I. 前缀与后缀基础练习 re+view → 前缀 re - 含义：再、重新 dis+agree → 前缀 dis - 含义：否定（不、相反） micro+scope → 前缀 micro - 含义：微小 infect+ion → 后缀 - ion 含义：动作或过程 bi+ology → 后缀 - ology 含义：学科（… 学） II. 表语从句初识 The truth is that the water was polluted. 引导词：that，成分：不做成分（仅连接作用） The question is whether he can finish the experiment. 引导词：whether，成分：不做成分（表 “是否”） This is why John Snow removed the pump handle. 引导词：why，成分：原因状语 【学习过程】 学习理解 Part 1 ：Discovering Useful Structures ①系动词. 状态类：be/seem/appear/keep/remain/stay 变化类：become/get/turn/grow/fall/come/go 感官类：look/smell/taste/sound/feel ② 引导词 连接代词 what/who/whom/whose/which 在从句中作主/宾/表/定语 连接副词 when/where/why/how 在从句中作状语 that：无实义，不可省略 ； whether：表"是否"（不与if互换） as if/though：表"好像"； because：表原因 ③辨别系动词和引导词 1. One theory was that bad air caused the disease. 2. Another was that cholera was caused by an infection from germs in food or water. 3. It seemed that the woman liked the water from the pump so much that she had it delivered to her house every day. 4. The truth was that the water from the Broad Street pump had been infected by waste. 5. The question is whether they will go by plane or by train. 6. It sounds as if / though someone is knocking at the door. 7. This is because the weather here is cold and wet. 8. That's why Tony got angry with me. 9. He has become what he wanted to be ten years ago. 【答案】见课件 ④语序 表语从句需用陈述语序。 错误：The problem is when can we start the research. 正确：The problem is when we can start the research. ⑤虚拟语气 当主语为表示 “建议、命令、要求” 的名词时，如： 一坚持（insist) 二命令（order, command) 三建议（advise, suggest, propose) 四要求（ask, require, request, demand) 表语从句用 “should + 动词原形”，should 可省略。 My suggestion is that we (should) repeat the experiment. Part 2: 前缀与后缀的运用 前缀如re-, dis-, trans-等，后缀如-ion, -ology等，用于改变词根意义，扩展词汇量。通过前缀和后缀的组合，可以形成新的词汇，如: micro-biology（微生物学），disagree（不同意），transformation（转变）等。 ① 前缀释义 re-：again / back (review / return) dis-：not (disagree ) micro-：small (microscope) trans-: change / across, over, beyond (transport / transnational) ② 后缀释义 -ory：of or relating to (sensory) -ion：action or process (collection) -ial: having the characteristics of (beneficial) -ology: a branch of knowledge (sociology) 应用实践 Practice ①选词填空 as if, that, what, who, when, how, why, whose, which, whether A. Absolutely. You may not believe it, but that was ________ happened at the initial stage of our group's research on developing a vaccine for malaria. B. Yes, it is. And it seemed _______ all the theories were useful, but the fact was _____ we couldn't persuade one another that one theory was better than another. C. Exactly. The problem was not about ________ all our theories were equally good, but in deciding _______ theory to depend upon. D. We realised that what we cared about was not _______ aspect we needed to develop a theory in, but rather ______ we can reduce the cost of a vaccine without reducing its effect! E. You're right. At last, we became focused on the key issue, which was ______ we had to carry out the research in the first place. 【答案】 A.what B.as if; that C. whether; whose D. which; how E. why 课堂练习 高考链接 1. （2023 新高考 Ⅰ 卷）The fact is ______ (that/which) we need more time to prepare. The problem is ______ we can't find enough resources. 2. （2022 全国甲卷）That's ______ (why/because) he changed his plan suddenly. That's ______ I didn't attend the meeting yesterday. 3. （2021 新高考 Ⅱ 卷）What we need is ______ (what/that) practical advice. The question is ______ we should do next. 4. （2020 全国 Ⅱ 卷）The challenge is ______ (how/when) we can improve our efficiency. The concern is ______ the new system will work. 5. （2019 全国 Ⅰ 卷）The doubt is ______ (whether/if) they can finish the task on time. The discussion focuses on ______ we should accept the offer. 6. （2023 浙江卷）The reason he was late is ______ (that/because) he missed the bus. The reason for his success is ______ he works hard. 【答案】 1.that; that 2.why;why 3. what; what 4. how; how 5. whether; whether 6. that; that 1. 前缀 un-（表否定） （2023 全国甲卷）The results were unexpected, showing that... The new policy seems ______ (fair). What do you think? 2. 后缀 - ance（表抽象名词） （2022 新高考 Ⅰ 卷）We should give full ___________ (assist) to the local community. The doctor emphasized the ___________ (important) of regular exercise. 3. 前缀 dis-（表否定） （2021 全国乙卷）Some people may __________ (agree) with this view. His behavior at the party was completely _______________ (appropriate). 4. 后缀 - ist（表职业或信仰） （2020 新课标 Ⅰ 卷）As a ____________ (science), she devoted her life to research. My dream is to become a famous ______ (art) one day. 5. 前缀 re-（表 “再、重新”） （2019 全国 Ⅲ 卷）The team decided to __________ (build) the bridge after the flood. We need to ________ (think) our approach to solving the problem. 【答案】 1. unfair 2. assistance ; importance 3. disagree; inappropriate 4. scientist; artist 5. rebuild; rethink 总结 自我评价 迁移创新 作业内容 本节课作业二选一，为分层作业，难度有所区别。基础一般的同学可以选择作业一，基础较好的同学可以选择作业二。 作业一: Finish the exercise on the handout. 任务1: 用适当的引导词填空（参考教材例句及高考真题题型）： ① The reason for his success is ______ he always stays focused.（that/because） ② The problem is ______ we can solve the mystery in time.（whether/how） ③ His dream is ______ he wants to become a leading scientist.（that/what） ④ That’s ______ she changed her research direction suddenly.（why/because） ⑤ The question is ______ the experiment results are reliable.（if/whether） 【答案】 ① The reason for his success is that he always stays focused.（解析：表语从句中，“the reason is that...” 为固定结构，不可用 because） ② The problem is how we can solve the mystery in time.（解析：表方式，用 how） ③ His dream is that he wants to become a leading scientist.（解析：从句结构完整，用 that 连接） ④ That’s why she changed her research direction suddenly.（解析：表原因结果，用 why） ⑤ The question is whether the experiment results are reliable.（解析：表 “是否” 且位于系动词后，用 whether，不用 if） 任务 2：系动词与表语从句匹配练习 从以下系动词中选择合适的词填入句子（每个词限用一次）： be, seem, become, look, sound ① Her explanation ______ reasonable, but we need to verify it. ② The result of the study ______ published in a top journal last month. ③ After years of research, he ______ a respected expert in his field. ④ The theory ______ more convincing with new evidence. ⑤ The challenge ______ how we can apply the findings to real life. 【答案】 ① Her explanation sounds reasonable, but we need to verify it.（感官类系动词） ② The result of the study was published in a top journal last month.（状态类系动词 be） ③ After years of research, he became a respected expert in his field.（变化类系动词） ④ The theory looks more convincing with new evidence.（感官类系动词） ⑤ The challenge is how we can apply the findings to real life.（状态类系动词 be） 作业二: 以“My Understanding of Science”为题，用至少 3 个表语从句写一段议论文 (80词)。 【参考范文】 Science is more than experiments and theories. The value of science is that it solves practical problems, from curing diseases to protecting the environment. The challenge for scientists is how they balance innovation and ethics, ensuring discoveries benefit humanity. My belief is that everyone can contribute to scientific progress, for curiosity and critical thinking are the keys to unlocking its mysteries. ( 7 / 8 7 / 8 ) 学科网（北京）股份有限公司 $$