Unit 1 Science and Scientists Learning About Language 课件 --2024-2025学年高中英语人教版（2019）选择性必修第二册

Unit 1 Science and Scientists Learning About Language 51PPT模板网，幻灯片演示模板及素材免费下载！ 51PPT模板网 唯一访问网址：www.51pptmoban.com 1 01 Build up your vocabulary 2 Find the words from the previous pages with the following prefixes or suffixes. Then add two words for each prefix or suffix, and explain their meanings. Prefix Words Meaning Suffix Words Meaning re- -ory dis- -ion micro- -ial trans- -ology remove replace discover disappear microscope microphone transform transplant again; back away; not; separate across; beyond small advisory compulsory infection relation partial financial biology sociology a place for; relating to or involving a verbal action noun, quality; state of being related to; like study/science of ... 51PPT模板网，幻灯片演示模板及素材免费下载！ 51PPT模板网 唯一访问网址：www.51pptmoban.com 3 Make phrases by combining the words in the left box with those on the right. Then complete the sentences using these phrases. subscribe suspect blame link to of for 1. Many scientists _____________ the view that it is human activity that has caused global warming. 2. He was to _____________ the accident because he drove on the wrong side of the road.  3. The man _____________ being behind the robbery was seen crossing the street. 4. Since heart disease is often_____________ our lifestyle choices, we need to make healthy living an important part of our lives. subscribe to blame for suspected of linked to 51PPT模板网，幻灯片演示模板及素材免费下载！ 51PPT模板网 唯一访问网址：www.51pptmoban.com 4 Replace the underlined parts with suitable words from the box. raw a household name substantial statistics handle 1. It is not unusual for an athlete to be well-known while he is active, and quickly forgotten when his athletic career is over. 2. I’m sure she’ll deal with the changes very well because she’s very adaptable. 3. He was ready to serve dinner to his friends when he realised that he had forgotten to turn on the oven and the meat was not cooked yet. 4. He used his great influence to change the thinking of the scientific community on this issue. 5. Scientists have collected more data than expected to prove the theory. a household name handle raw substantial statistics 51PPT模板网，幻灯片演示模板及素材免费下载！ 51PPT模板网 唯一访问网址：www.51pptmoban.com 5 Read this passage about medical science. Complete it using the words below. infection 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's cells that is to ______________ for the spread of cold-causing virus. Targeting the host rather than the ______________ was a bit non-traditional but made sense because it was tricky to target the virus. Cold-causing viruses are not only of ______________ kinds, they also ______________ rapidly, meaning they can quickly develop resistance to medicine. blame infection multiple transform 51PPT模板网，幻灯片演示模板及素材免费下载！ 51PPT模板网 唯一访问网址：www.51pptmoban.com 6 Read this passage about medical science. Complete it using the words below. infection multiple decrease severe transform proof blame substantial Researchers are working on making a form of medicine that can be taken directly into one’s lungs, to ______________ the chance of side effects. Though these scientists have made ______________ advances in their research, further ______________ is needed to make sure such drugs are not so______________ that they harm the body. decrease substantial proof severe 51PPT模板网，幻灯片演示模板及素材免费下载！ 51PPT模板网 唯一访问网址：www.51pptmoban.com 7 02 Discover useful structures 8 表语从句概述 在句中作表语的从句称为表语从句。表语从句和主语指同一内容,它对主语进行解释、说明,使主语的内容具体化。表语从句可由从属连词、连接代词或连接副词等来引导。 从属连词: that, whether 连接代词: what, which, who, whom, whose, whoever, whatever, whichever 连接副词: when, where, why, how 其他连接词: as if/though, because 9 常见的可以接表语从句的连系动词有:be, feel, seem, look. appear, sound, remain, prove。 表语从句概述 At that time it seemed as though I couldn't think of the appropriate word. 当时，我似乎怎么也想不出一个恰当的字眼来。 10 that在从句中不充当句子成分,无实际意义,一般不能省略。 that 与 whether 引导表语从句 The fact is that I was on the scene when the incident happened. 事实上，事件发生时我就在现场。 My idea is that we should start making preparations right now. 我的意见是我们马上就开始做准备工作。 My suggestion is that we should tell her. 我的建议是我们应该告诉她。 11 连接词whether起连接作用，意为"是否,究竟,到底",在句中也不作任何成分。if不能引导表语从句。 that 与 whether 引导表语从句 What the doctor really doubts is whether my mother will recover from the serious disease soon. 医生真正怀疑的是我母亲是否能很快从这场重病中康复。 The question is whether the film is worth seeing. 问题是这部电影是否值得看。 12 连接代词what, which, who, whom, whose等除在句中起连接作用外,在从句中还充当主语、宾语、表语或定语,本身具有词义。 连接代词引导表语从句 Tom is no longer what he used to be. 汤姆已不再是过去的他了 The question is which of us should be in charge of the company. 问题是我们中的谁应该主管公司。 The problem is who is suitable for the position. 问题是谁适合这个职位。 13 连接副词 where, when, why, how 除在句中起连接作用外,在从句中还分别充当地点、时间、原因、方式状语,本身具有词义 连接副词引导表语从句 That's where I cant agree with you.那就是我不能同意你的地方。 That was when he went to the grocery store. 那就是他去杂货店的时候。 This is why Sara apologised to me after the conference. 这就是萨拉会后向我道歉的原因。 14 其他连接词引导表语从句 because引导表语从句通常只用于“This/That/It is because... ”结构中。 He fell asleep during the lecture. This was because he got bored with it. 他在讲座期间睡着了。这是因为他已经厌倦了。 The boss scolded him. That was because he came late. 老板责骂他，那是因为他来晚了。 15 其他连接词引导表语从句 as if/though引导的表语从句常置于连系动词 look, seem, sound, become 等后面。 It sounded as if/though somebody was knocking at the door. 听起来好像有人在敲门。 It seems as though he doesn't know the answer. 看起来他好像不知道答案。 16 表语从句中的虚拟语气 在表“建议,劝说,命令”的名词advice, idea, suggestion, request, proposal等后面的表语从句中,谓语动词用“should +动词原形”, should可省略。 The boss's request is that we (should) achieve the goal we set. 老板的要求是我们要达到我们设定的目标。 My suggestion is that we (should) start early tomorrow. 我的建议是我们明天早点儿出发。 17 表语从句中的虚拟语气 as if/though 引导的表语从句如果是事实,就用陈述语气;如果与事实不符,就用虚拟语气(与现在事实不符,从句动词用过去式, be动词用 were;与过去事实不符,从句动词用过去完成式)。 Dark clouds are gathering. It looks as if it's going to rain. 乌云正在聚集。看起来好像要下雨了。 When a pencil is partly put in water, it looks as if it were broken. 当一支铅笔放在水中一部分时，它看上去像是折断了。 The girl looked as if she had been turned to stone. 那女孩看上去好像已经变成了石头。 与事实相符 与现在事实不符 与过去事实不符 18 03 Practice 19 Answer the following questions using the information from the reading passage as well as the predicative clauses. 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_______________________ ______________________________________________. 1. What was Snow’s discovery in two particular streets in London? Snow’s discovery in two particular streets in London was that __________________________________________________________________. 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 ____________________________________________ ___________________________________________________________________ ____________. the cholera outbreak was so severe that more than 500 people died in ten days the outbreak of cholera had caused over 500 deaths within tendays all those who died had lived/all the dead people had lived 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 20 David is talking to Maria about their scientific research project. First complete David’s lines (A–E), using the words in the box. 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. what as if whether that which/what which/what how why 21 Then put David’s lines in the correct order and practise the conversation. Maria: This mix of theory and data is one of the key characteristics of what we call science. David:_______________________________________________________Maria: With your theoretical framework? David:_______________________________________________________ Maria: Deciding on a theory is definitely of critical importance. David:_______________________________________________________ Maria: This was when you should have calmed down and got down to doing some solid work. David:_______________________________________________________ Maria: So what happened in the end? David:_______________________________________________________ A C B E D 22 用适合的单词形式填空 1. What surprised us most is _________ she spoke English so well. 2. The problem is _________ has got away with the document. 3. That is _________ mice ruin many stores of grain every year. 4. Air is to man _________ water is to fish. that who how what 5. I had neither a raincoat nor an umbrella. That's _________ I got wet through. 6. She failed the exam again. The reason was_________ she was too careless. why that 7. The question is _________ the composer will turn up in time. whether 23 用适合的单词形式填空 8. His advice to his grandma is that she_______________ (make) good use of her spare time. 9. Why doesn't she buy me a drink? It isn't as if she _________ (have) no money! 10. The judge's proposal is that we____________ (find) more evidence. (should) make had (should) find 11. What puzzled me was _________ book I should choose. 12. As John Lennon once said, life is _________ happens to you while you are busy making other plans. which what 24 04 Language Points 25 thinking n. 想法，看法；态度；思想；思维；见解 clear/critical thinking 清晰的思维/批判性的思维 lateral thinking 横向思维 put on your thinking cap 动脑筋，通过思考解决问题 My father is very rigid in his thinking. 我父亲的思想非常顽固。 Her thinking on social issues has changed considerably over the years. 这些年来，她对社会问题的见解有了很大改变。 26 cell n. 细胞；小房间；单间牢房 brain/nerve cell 脑细胞/神经细胞 cell division 细胞分裂 prison cell 囚室 All living things are composed of cells. 所有的生物都由细胞组成。 They keep her locked up in one of these little cells. 她关在其中一个小房间里。 27 SEE YOU NEXT TIME 28 $$