外研版（2019）必修第三册Unit 3 The world of science Developing ideas 导学案(含答案）

课 题 Unit 3 The world of science Developing ideas
课 型 新授课 课 时 第四课时
学 习 目 标 1. To master basic knowledge of this lesson and use them freely. 2. To develop students’ analyzing abilities by reading the article and learn to express themselves. 3. To help students have a better understanding of scientific spirit and develop a mindset of criticism,
重 点 难 点 1. Master some key words declaration, experiment, attach, conduct, phrases apart from, die from, come up with, contribute to and some expressions. 2. To further improve students’ reading comprehension abilities.
学 法 指 导 1.课前30分钟自主学习，完成预习学案。 找出自己的疑惑和需要讨论的问题，用红笔做好标记。 2.课上25分钟高效讨论展示答案 3.课上10-15分钟答疑解惑。 4.课后20分钟巩固学习
自主学习
1.单词汉译英： (1) v.起草；草拟 (2) n.声明；宣告 (3) adj.科学上的 (4) n.(科学)实验 (5) n.闪电 (6) adv.完全地；彻底地 (7) n.记述；描述 (8) v.系；绑；贴 (9) n.金属 (10) v.传导 (11) n.虚构的事 (12) n.重力；引力 (13) n.证据；证明 (14) n.程序；步骤；手续 2. 短语英译汉： (1)instead of (2)tie...to... (3)an approach to... (4)take place (5)die from (6)come up with (7)draw a conclusion (8)even if 3. 单词拼写 (1) G (重力) causes these objects to fall to earth. (2) There was widespread complaint about the election p (程序). (3) L (闪电) usually accompanies thunder. (4) He can not distinguish between truth and f (虚构). (5) The d (宣告) of independence is a breach of the constitution.
课堂探究
Developing ideas Step 1 Lead-in 1 Read the short introduction to Benjamin Franklin and share any other information you know about him. Benjamin Franklin(1706-1790) was one of the Founding Fathers of the United States and helped draft the Declaration of Independence. Apart from being a successful statesman, he was also well known as a leading American author, printer, and publisher, successful diplomat, creative scientist and inventor. 2 Watch the video and learn more about him. Step 2 Reading 1. Fast reading 1 Read the passage and find out what Franklin’s experiment aimed to prove. 2. Careful reading Number the statements to show how people’s attitudes towards Franklin’s experiment have changed. Think & Share 1 Do you think it matters that Franklin’s experiment might not be true Why 2 What is your opinion about the statement “...we should not always believe everything we read or hear--even if it is a great story” 3 What qualities do you think a great scientist should have 4 In what ways do scientist contribute to society Step 3 Some language points: 1. declaration n. 声明；宣告 v. 宣布；声明；宣称 ① 宣布；声称 eg. It is declared that there will be no class this afternoon. 。 ② 向......宣战 eg. Britain declared war Germany in 1914. 英国在1914年向德国宣战。 ③ 声称...是...；将...宣布为... eg. Eva declared herself (be) happy and satisfied. 伊娃声称自己非常幸福和满足。 2.experiment n.(科学)实验；v. 尝试；做实验 adj. 实验性的 ① 做实验 ② 进行实验 ③ 用......做实验 eg. The students are experimenting new materials provided by their school. 这些学生正在用学校新提供的材料做实验。 3.attach v.系；绑；贴；附属于(to)prep. adj. 依恋的；爱慕的；附加的--- n. 附件；依恋 ① 附属于；依恋于...;系在...上 ② 把......附在/固定在......上 eg. The hospital (attach) to the medical college. 这家医院附属于那所医学院。 ③ 认为......很有重要性/意义/价值/分量 ④ 给......贴标签 eg. My parents always attach great (important) to my getting a good education. 我的父母一直认为让我得到良好的教育很重要。 4. account n. 记述，描述；账户；解释 v. 认为；说明；总计有 ① 解释；说明(原因)；(比例)占 ② 考虑到/顾及 eg. Boys accounted 65% of the whole students. 男生占学生总数的65%。 ③ (详细)解释/考虑...... ④ 因为 eg. He was absent from school account of illness. 他因病没有去学校。 ⑤ 决不 ⑥ 赊账 eg. On no account (jump) into a conclusion when you feel uncertain about a problem. 当你对一个问题感到不确定时，切莫仓促下结论。 5. apart from 除......之外(还) ①apart from= （不包括） ②apart from= = （包括） eg. I like all vegetables tomatoes. 我喜欢所有蔬菜，除了西红柿。 eg. What languages do you know English 除了英语外你还懂什么语言？ 6. there is no proof that.... 无证据证明...... eg. There is no (prove) that he was on the crime spot. 没有证据证明他当时在犯罪现场。 v. 证实；证明 eg. Our reports proved to be true. 。 eg. He proved herself a sympathetic listener. 。 7. However, neither the story nor the details of the experiment are entirely true. 然而，不管是故事本身还是实验细节并非完全属实。 neither...nor... 既不...也不... 连接两个并列的句子成分，表示完全否定。 ①连接两个名词或代词作主语时，遵循“就近原则” eg. . 你和我都没有受过良好的教育。 ②neither 或nor 置于句首，其后的句子用部分倒装 eg. . 我不知道也不想知道这件事。
Homework 1. Sum up what we learned in class and take notes. 2.Preview the next period.
自主预习和语言点答案
自主学习
1.单词汉译英： (1)draft v.起草；草拟 (2)declaration n.声明；宣告 (3)scientific adj.科学上的 (4)experiment n.(科学)实验 (5)lightning n.闪电 (6)entirely adv.完全地；彻底地 (7)account n.记述；描述 (8)attach v.系；绑；贴 (9)mental n.金属 (10)conduct v.传导 (11) fiction n.虚构的事 (12)gravity n.重力；引力 (13)proof n.证据；证明 (14)procedure n.程序；步骤；手续 2. 短语英译汉： (1)instead of 代替；而不是 (2)tie...to... 把...系在... (3)an approach to... 一种....的方法 (4)take place 发生 (5)die from 死于 (6)come up with 想出；提出 (7)draw a conclusion得出结论 (8)even if 即使；尽管 3. 单词拼写 (1) Gravity (重力) causes these objects to fall to earth. (2) There was widespread complaint about the election procedure (程序). (3) Lightning (闪电) usually accompanies thunder. (4) He can not distinguish between truth and fiction (虚构). (5) The declaration (宣告) of independence is a breach of the constitution. Language points: 1. declaration n. 声明；宣告 declare v. 宣布；声明；宣称 ①declare that...=it is declared that... 宣布；声称 eg. It is declared that there will be no class this afternoon. 宣布今天下午没有课。 ②declare war on... 向......宣战 eg. Britain declared war on Germany in 1914. 英国在1914年向德国宣战。 ③declare...to be... 声称...是...；将...宣布为... eg. Eva declared herself to be happy and satisfied. 伊娃声称自己非常幸福和满足。 2.experiment n.(科学)实验；v. 尝试；做实验 experimental adj. 实验性的 ①do/ carry out an experiment 做实验 ②perform/ conduct an experiment 进行实验 ③experiment with /on 用......做实验 eg. The students are experimenting with new materials provided by their school. 这些学生正在用学校新提供的材料做实验。 3.attach v.系；绑；贴；附属于(to)prep. attached adj. 依恋的；爱慕的；附加的---attachment n. 附件；依恋 ①be/become attached to... 附属于；依恋于...;系在...上 ②attach...to... 把......附在/固定在......上 eg. The hospital is attached to the medical college. 这家医院附属于那所医学院。 ③attach great importance/significance/value/weight to 认为......很有重要性/意义/价值/分量 ④attach a label to... 给......贴标签 eg. My parents always attach great importance to my getting a good education. 我的父母一直认为让我得到良好的教育很重要。 4. account n. 记述，描述；账户；解释 v. 认为；说明；总计有 ①account for 解释；说明(原因)；(比例)占 ②take ... into account=take account of... 考虑到/顾及 eg. Boys accounted for 65% of the whole students. 男生占学生总数的65%。 ③give a/an (full/detailed) account of... (详细)解释/考虑...... ④on account of 因为 eg. He was absent from school on account of illness. 他因病没有去学校。 ⑤on no account 决不 ⑥on account 赊账 eg. On no account should you jump into a conclusion when you feel uncertain about a problem. 当你对一个问题感到不确定时，切莫仓促下结论。 5. apart from ①apart from=except (for) （不包括） ②apart from=besides=in addition to （包括）eg. I like all vegetables apart from/except for tomatoes. 我喜欢所有蔬菜，除了西红柿。 eg. What languages do you know apart from/besides English 除了英语外你还懂什么语言？ 6. there is no proof that.... 无证据证明...... eg. There is no proof that he was on the crime spot. 没有证据证明他当时在犯罪现场。 prove v. 证实；证明 eg. Our reports proved to be true. 我们的报道都证明是真实的。 eg. He proved herself a sympathetic listener. 他证明自己是一个有同情心的倾听者。 7. However, neither the story nor the details of the experiment are entirely true. 然而，不管是故事本身还是实验细节并非完全属实。 neither...nor... 既不...也不... 连接两个并列的句子成分，表示完全否定。 ①连接两个名词或代词作主语时，遵循“就近原则” eg. Neither you nor I was well-educated. 你和我都没有受过良好的教育。 ②neither 或nor 置于句首，其后的句子用部分倒装 eg. Neither did I know, nor did I want to. 我不知道也不想知道这件事。