Unit3TheworldofScience-DevelopingIdeas课件-高中英语外研版

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Unreal If I were you, I would work harder. Real If you work harder, you will succeed.
Unreal If you hadn’t stayed up late, you would have arrive on time. Real If you go to sleep early, you will wake up early?
4) In what ways do scientists contribute to society? Firstly, scientific discoveries promote the development of our society. Secondly, the contributions of scientists in medicine extend our life span. Thirdly, scientists have invented a lot of surprising tools that fundamentally improve our living standards.
Real If you work hard, you will make a fortune. Unreal If I were to be rich, I wouldn’t forget you.
if 引导的非真实条件句 非真实条件句表示所提出的假设实现可能性极小或
与事实相反,所以谓语动词用虚拟语气。
Introduce the theme of the
passage
Explaine the theme in detail
Transition to another
viewpoint to further
explain the theme
Sum up
Activity 3 Number the statements to show how people's attitudes towards Franklin's experiment have changed.
experiment with sth. 用某物实验 experiment on sth. 对某物进行实验 perform/conduct/do/make an experiment 做实验
introduce sb to… 使之了解认识 instead of 代替,而不是(介词短语)
that 引导的表语从句, “that”无实意但起到 连接作用,不可省略。
新外研社高中英语必修三 Unit 3 The World of Science
DeБайду номын сангаасeloping Ideas
Reading
Lead-in
Who is he?
Benjamin Franklin
Activity 1 Read the introduction to Benjamin Franklin.
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"? eg Sometimes a really great story may not be true, and we need to have critical thinking.
If he (had studied) harder, he would have passed the exam.If he ___(w__e_re_)___here, he would give me some advice.If it ___(_is_)___fine tomorrow, I will go outing.
3) What qualities do you think a great scientist should have? eg I think a great scientist should be patient, serious, brave, careful, creative and imaginative…
虚拟语气基本结构 if从句 对现在情况的假设 were/did
对过去情况的假设 had + -ed
主句
would(意愿)/could(可以)/should(应该) /might)(推测) + 动词原形 w/c/m/s + have 十 过去分词
对将来情况的假设 should/were to w/c/m/s + 动词原形 +v
Watch Egg in a Bottle Experiment
While-writing: Writing an experiment report
Complete the boxes with the information in Activity 5. Do further research if necessary.(P47-6)
1. What do you think the results of this experiment will be?
The egg will squeeze into the bottle.
2. What can you learn from this experiment?
The experiment shows us the effects of air pressure. Air pressure indeed exists, and it is very powerful.
以or,either...or,neither...nor,not only...but also等连接的名词(代词) 作主语时,谓语动词的单复数应根据就近一致的原则。
if 引导的真实条件句/非真实条件句?
真实条件句表示提出的假设完全可以成为现实,因此谓语动词用陈述语气。 非真实条件句表示所提出的假设实现可能性极小或与事实相反,所以谓语动 词用虚拟语气。
While-writing: Writing an experiment report
prove whether air pressure really exists。
Key
While-writing: Writing an experiment report
a boiled egg, a glass bottle whose neck is a bit smaller than the egg, and some hot water
“尽管”引导让步状语从句
诚然;不可否认 Hearing something great/dramatic/terrifying, what should we do?
Writing
Pre-writing Read the instructions for the experiment and answer the questions. (P46-5)
Conclusion Lightning was a form of electricity.
Activity 3 Match the main ideas with each paragraphs.
A. Questioning accepted ideas. Para. 2 B. Benefits of the stories about exploring science. Para. 3 C. Benjamin Franklin’s famous experiment. Para. 4 D. Facts should be proved by experiments and research Para. 5 E. Introduction of the theme of the text. Para. 6 F. Not everything about the experiment is true.
1. What do you think the results of this experiment will be? 2. What can you learn from this experiment?
Pre-writing Read the instructions for the experiment and answer the questions. (P46-5)
Experiment The kite lightning experiment
Aim
To test if lightning was really produced by electricity.
Material A kite with a string and a metal key
Procedure
3 Franklin’s spirit of scientific exploration is still considered an inspiration.
1 People are amazed at and inspired by Franklin’s experiment.
2 Scientists question what really happened in Franklin’s experiment.
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.
过去分词短语作宾补 附在...上
被电击
be amazed by/at approach to sth/ doing sth
but, with, along with, together with, except,besides, as well as, etc. 谓语形式看前者, 就远原则。
“more than one/many a...+单数可数名词”作主语时,尽管意义上是 复数,但谓语动词仍用单数形式,符合语法一致原则。但是,“more +复数名词+than one”结构之后,谓语动词一般多用复数形式。
First, Franklin flew a kite with a string and a metal key. Then, when a flash of lightning hit the kite, electricity was conducted through the string to the key. Finally, touching the key, Franklin got an electric shock.
• I assume that Benjamin Franklin is a ... person.
• In my opinion, maybe he is...
Activity 2 Read the passage and find out what Franklin’s experiment aimed to prove.
1) Do you think it matters that Franklin’s experiment might not be true? Why? eg No. Because what really matters lies in his bravery to do the experiment.
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