【最新教师用书】2013-2014学年高中英语必修五：Unit 1 Great scientists 同步课件第3课时

Module 1British and American English【美文阅读】我们都知道美国和英国都说英语，但你知道英国英语和美国英语到底有什么区别吗？下面让我们来看究竟吧……American and British EnglishAmerican and British English spelling differences are one aspect of American and British English differences.In the early 18th century，English spelling was not standardized.Differences became noticeable(明显的，显著的) after the publishing of influential dictionaries.Current British English spellings follow，for the most part，those of Samuel Johnson's Dictionary of the English Language (1755)．Many of the now characteristic American English spellings were introduced，although not，for the most part，created，by Noah Webster in his American Dictionary of the English Language of 1828.Webster was a strong proponent of spelling reform for reasons both philological and nationalistic.Many spelling changes proposed in the US by Webster himself，and in the early 20th century by the Simplified Spelling Board，never caught on.Among the advocates of spelling reform in England，the influences of those who preferred the Norman (or Anglo-French) spellings of certain words proved decisive.Subsequent spelling adjustments in the UK had little effect on present-day US spelling，and vice versa(反的)．While in many cases American English deviated(偏离；脱离) in the 19th century from mainstream British spelling，on the other hand it has also often retained older forms.The spelling systems of monwealth countries，for the most part，closely resemble the British system.In Canada，however，while most spelling is “British”，many “American” spellings are also used.Additional information on Canadian and Australian spelling is provided throughout the article.【诱思导学】1．What does this passage mainly tell us?【答案】This passage mainly tells us American and British English spelling differences. 2．What influenced current British English spelling?【答案】Samuel Johnson's Dictionary of the English Language (1755)．3．Did later spelling adjustments in the UK have influence on present-day words?【答案】No.Period ⅠPreviewing(教师用书独具)●课标技能要求初步掌握本课文中的词汇，浅层次理解课文，了解相关的背景知识。

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Thomas Newcomen
(1663~1729) (British) He improved the first steam pump built by Thomas Savery in 1698 and turned it into a steam engine for taking water out of mines in 1712. James Watt improved it still further in the 1770s turning it into the first modern steam engine used on the railways.
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victims
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radium
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universe
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suspect suspected The _________ is _________ to have stolen much money from a bank.
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The woman is making an __________ to enquiry someone.
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cured The patient has been _________ and been able to walk home.
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defeated He is afraid of being ___________.
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exposed to If you are __________ _____ the sun too long, you will get sunburnt.
Archimedes
(287~212 BC)
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Charles Darwin
(1808~1882)

What caused cholera?
Make a question: Which theory to believe in?
Cholera multiplied in the air without reason. A cloud of dangerous gas would float around until it found its victims.
What other famous
scientists do you know?
Who is he?
He has made a famous kite experiment. He learned a lot from it and invented lightning rod (避雷针). He is … Benjamin Franklin
Determination and creativity
Pre-reading
Look at this picture and discuss why do they wear a mask?
1.What impresses you most in 2003?
Infectious diseases
Stephen Hawking British
made great contributions.
Great scientists made great achievements.
are …
succeeded in scientific area
overcome many difficulties.
Skim the text and find the main idea of the text.
The passage is mainly about: _H__o_w__J_o_h_n_S_n__o_w__fo_u_n_d__t_h_e_c_a_u_s_e_o_f_ _t_h_e_c_h_o_l_e_r_a_a_n_d__d_e_f_ea_t_e_d__it_.

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状语从句中的省略
• 在状语从句中，当从句主语与主句主语一 致或者从句主语为it，且从句谓语含有be 动词时，可省略从句的主语和be。 e.g. 1. Unless (I am) invited I will not go. 2. (Because we were) Moved by the story, we decided to help her.
e.g. You can get burned by hot liquids and you can get burned by steam. You can get burned by hot liquids and steam.
Discovering useful structures
5 Rewrite the sentences in Exercise 3.
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Homework:
• 1. • 2. • 3.
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Discovering useful structures
5 Rewrite the sentences in Exercise 4.
P37
• • •
Add the unnecessary parts to them The temple which is surrounded by a wall belongs to the local government. The first book that I read this term was more interesting than the second book that I read this term. To her teacher’s surprise, she did better in her first aid exam than she was expected to do.