Unit 1 Science and Scientists Learning about language（情境教学课件）英语人教版2019选择性必修第二册

Unit 1 人教版2019选择性必修第二册 Science and Scientists Learning about Language Key words ★subscribe Let’s guess 知识拓展 vi. 认购(股份)；定期订购；定期交纳(会费) Snow subscribed to the second theory. 斯诺赞同第二种理论。 1. In oeder to improve her son’s English, She subscribed to English weekly. 2. He subscribed his name to the contrast. subscribe to subscribe...to... 赞同；同意；订阅 把……捐赠给……；把……签署在……上 Key words ★suspect Let’s do it 知识拓展 vi.&vt. 怀疑；不信任 n. 犯罪嫌疑人；可疑对象 怀疑某人（做）某事 怀疑某人是 suspect sb of (doing) sth suspect sb to be I suspect him________(be) a pickpocket. I suspected that girl of_________(lie) to us. to be lying Key words ★blame vt. 把……归咎于；责怪；指责 n. 责备；指责 Let’s guess 1. They place the blame on the doctor. 他们把责任归咎于医生。 2. He tried to escape blame for what he had done. 他试图不为自己的行为负责任。 3. It seems that the water was to blame. 看起来水是罪魁祸首。 Key words 知识拓展 Key words 即学即练 单句语法填空/一句多译 ①If that happens, the coach will take the blame                it. ②You are not                (blame). I can’t put the blame                you. ③You shouldn’t                              the failure. ＝You shouldn’t                                    John. 你们不应该把这次失败归咎于约翰。 for to blame on blame John for blame the failure on Key words ★link vt. 把……联系起来；相关联 n. 联系；纽带 The new bridge will link the island to the mainland. 新的桥梁将把该岛与大陆连接在一起。 知识拓展 link...to/with... link up link up with... a link between A and B 将……和……联系或连接起来 连接；结合 与……联合；使与……衔接 A和B之间的联系 Key words 即学即练 单句语法填空 ①The new tunnel links Britain                France. ②The two spacecraft will link up                each other in orbit. ③The country                (link) to the town by a new bridge. to/with with is linked Key words ★decrease vt.&vi. (使大小或数量等)减少；减小；降低 n. 减少；降低；减少量 ★increase (1)on the decrease 在减少中 a decrease in...   在……方面减少 (2)decrease to...   减少到…… decrease by...   减少了…… decrease from...to...   从……减少到…… Key words 即学即练 单句语法填空 There is a decrease of nearly 7%                the number of visitors to the museum. The accidents have decreased                20% since the measure has been taken. Because of human activities, the number of some rare animals is                the decrease. in by on Key words ★thanks to because of　　　 因为；由于 as a result of 作为……的结果；由于 due to 因为；由于 owing to 由于；因为……的缘故 幸亏；由于 知识拓展 即学即练 ①As a result                the bad weather, the football match was put off. ②The accident was due                his careless driving. ③Owing                your timely help, we finished the work ahead of time. of to to Key words ★transform vt. 使改观；使改变形态 vi. 改变；转变 知识拓展 (1)transform A into B　 把A变成B transform sth. from A to B 使……从A变成B (2)transformation n. 改变；改革 Key words 即学即练 单句语法填空 We must work hard so as to transform China                an advanced industrial country. A complete change of climate transformed the area from farmland                a desert. We are living in a time of social                              (transform)． into to transformation Key words Translate the sentences into English. 1.如果你订阅这个报纸，它会给你送货上门的。 2.警察怀疑钱是他偷的。 3.你们不应该把今天的迟到归咎于闹钟没响。 4.那家新公司与几家老公司联合以保护自己。 5.多亏了大家的共同努力，这件事获得了比预期更大的成功。 6.蒸汽机将热能转变为动能力。 表语从句 什么是表语（predicative）？ 表语（一个词）用来描述主语是什么，包括主语的身份，特征和状态等。 定义： 用法： 系动词后接表语。 主语＋系动词＋表语 结构： Mike is a doctor. Mike is kind. 主语 表语 系动词 等同性描述 形容性描述 什么是表语从句？ 在复合句中，由一个句子充当表语成分，用来描述主语是什么，包括主语的身份，特征和状态等。 定义： 结构： 主语＋系动词＋引导词＋简单句 表语从句 The trouble is that I have lost my bike. that 引导 whether 引导 疑问词引导 as if /as though 引导 because 引导 表语从句 1.引导词的用法 (that) that在表语从句中 ,又 且 省略。 1.The fact is that he hasn’t yet recovered from illness. 2.The reason why he has to go is that his mother is ill in bed. 既不充当成分 没有意义 不可 事实是他的病还没有好。 他不得不去的原因是他的妈妈生病在床。 表语从句 1.引导词的用法 (that) My suggestion is that we should tell her. 我的建议是我们应该告诉他。 要求： request, requirement, insistence... 建议： idea, advice, suggestion, proposal, recommendation... 命令： order, instruction... 注意： 如果主语是要求/建议/命令等词，表语从句用“should＋动词原形”（should 可省略）。 表语从句 2.引导词的用法 (whether) whether在表语从句中表 ,但 句子的成分。 The question is whether it is worth doing. “是否” 不充当 if or whether? She asked me if /whether she could borrow these books. The question is if/whether we can rely on him. 在表语从句中, 表“是否” 时, 只能用“whether”不能“if”。 I don’t know _______________ he wants to go alone. The problem was __________he could come on time. √ √ if/ whether whether 表语从句 3.引导词的用法 (连接代词what) what 在表语从句中充当 表示 。 1. The question is what caused the accident. 2. That mountain is no longer what it used to be. 3. What he told you was what had been discussed at the meeting. 主语、表语、宾语 什么，什么样子，或所…的（人或事） 主语 表语 宾语 表语从句 3.引导词的用法 (连接代词who) who 在表语从句中充当 表示 。 1.The problem is who could do the work. 2. My trouble is who(whom) I can turn to. 主语、宾语或表语 谁 主语 宾语 表语从句 3.引导词的用法 (连接代词which) which在引导表语从句时，常充当 表示 。 I read about it in some book or another, but what I don’t know is which (book) it is. 定语，表语 其/当中哪一个 定语 表语从句 3.引导词的用法 (连接代词what/who/which...) That is what I want to tell you. 那就是我想告诉你的。 The question is which of us should go. 问题是我们哪一个应该去。 The problem is who we can get to replace her. 问题是我们能找到谁去替换她呢。 His puzzle is whose money it belongs to. 他的困惑是这钱是谁的。 表语从句 3.引导词的用法 (连接副词When/Where/Why/How...) 当表语从句中主语、宾语、表语具备，但是还是要表示疑问含义，可以判断句子中缺少状语，常常用相应的特殊疑问词引导，有 why 表 ， when表 ， where表 ， how表 等。 This is how he did it. That is why the brothers wanted to make a bet. That’s why we’ve given you the letter. 为什么 在……时候 在哪里 怎么样 表语从句 3.引导词的用法 (连接副词When/Where/Why/How...) Go and get your coat. It’s where you left it. 去把外套拿来。就在你原来放的地方。 The problem is how we can find him. 问题是我们如何找到他。 That was when I was fifteen. 那是我十五岁时发生的事。 That is why I object to the plan. 这就是我反对这个计划的原因。 表语从句 4.引导词的用法 (as if, as though) 由as if, as though引导表语从句（常用于虚拟气）表示 。 句子中的系动词常用look, appear, seem等。 1.It looks as if it was going to rain. 2.The young man with long hair looks as if he were a girl. 好像 表语从句 5.引导词的用法 (the reason why… is that/ It is because…) 当主句的主语为reason，或者是由why引导的从句时，与它们相关的表语从句用 ，而不能由 引导；because引导表语从句时只能用于 句型中。 1.The reason why I was late was that I missed the train. 2.I was late. It/ That/ This was because I missed the train. that because It/ That/ This is / was because… Exercise 完成句子 1.这就是去年举行运动会的地方。 This is 　　　　　　　　　　　　　 last year.  2.唯一的问题是这个过程会有多快。 The only question is 　　　　　　　　　　　　 .  3.我想知道的是你何时能完成任务。 What I want to know is 　　　　　　　　　　 .  4.困难看来少不了。 　　　　　　　　　 there are going to be a lot of difficulties.  5.窗户都打开了，难怪这么冷。 All the windows are open; that’s 　　　　　　　　　　. 　　　　　　　　　　　 where the sports meeting was held how fast the process will be when you can finish the task It looks as if/ though why it is so cold Exercise Answer the following questions using the information from the reading passage as well as the predicative clauses. EXAMPLE What Was it that John Snow showed to the world? What John Snow showed to the world was how cholera could be overcome. 1. What was Snow’s discovery in two particular streets in London? Snows discovery in two particular streets in London was that ____________________________________________________ 2. What was Snow determined to find out during the 1854 outbreak of cholera in London? What Snow was determined to find out was why ______________________________________________________________ more than 500 people died in ten days. the cholera outbreak was so severe in the two particular streets. Exercise Answer the following questions using the information from the reading passage as well as the predicative clauses. 3. What were the exact places(Snow marked on the map? ) The exact places Snow marked on the map were where __________________________________________________________. 4. What was the finding that Snow announced? Snow’s finding was that ______________________________________. all those who died had lived the pump water carried cholera germs Exercise David is talking to Maria about their scientific research project. First complete David’s lines (A-E, using the words in the box. Then put David’s lines in the correct order and practice the conversation. as if that what who when How why whose which whether 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. 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. what as if that Exercise as if that what who when How why whose which whether Exactly The problem was not about ______________ all our theories were equally good, but in deciding. ____________ theory to depend upon. 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! You’re right. At last, we became focused on the key issue, which was ________ we had to Cary out the research in the first place. whether whose which how why 表语从句的基本句型 Evaluation sheet Questions Yes No 1.Can I understand the key words？ 2.Can I finish the task？ 3.Can I focus on the teacher? 4.Can I remeber the predicative? 5.Can I use the new knowledge to solve the questions. 6.Can I participate in the class actively? 7.Can I discuss with partners actively? Reflection Thank you (1)be to blame (for sth.) (对某事)负有责任，应受责备 blame sb. for sth. 因某事责备某人；把某事归咎于某人 blame sth. on sb./sth. 把某事归咎于某人/某事 (2)put/lay the blame for sth. on sb. 将某事归咎于某人 take the blame for sth. 对某事承担责任 $$