人教课标版高中英语选修8Unit3reading(共22张PPT)

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2.What is an invention? An invention is something that is created by a human being. Inventing is a scientific activity.
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Pre-reading
【Reading 】
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patents
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The problem of the snakes
Fast Reading 1.Skim the whole passage and get the main idea: The text narrates _t_h_e_p_r_o_b_l_e_m__o_f_t_h_e_s_n_a_k_e_s_ and presents _th_e__p_r_o_c_e_d_u_r_es__o_f_c_a_tc_h_i_n_g__th_e_m__ and applying for _a_p_a_t_e_n_t_.
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The structure of DNA
This was a discovery of
Francis Crick and James
Hale Waihona Puke Baidu
Watson and published in 1953.
These two scientists were the
first to show that our genes
consist of two spirals of DNA
(called the double-helix). This
work led directly to the human
genome project in 2003, which
discovered the Structure of
DNA.
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Leading-in
1.What is a discovery?
2.What is an invention?
万有引力 discovery
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invention
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Think:
1.What is a discovery? A discovery merely makes known something that already existed in nature.
Unit 3 Inventors and inventions
Reading (Ⅰ)
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Learning aims
1.To help the students learn how to talk about inventions and discoveries. 2. To enable the students to talk about inventors and inventions. 3.To practise reading articles in limited time.
Finding a problem
Doing research
Testing the solution
Thinking of a creative solution
Deciding on the invention
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The suitable order: Finding a problem Doing research Thinking of a creative solution Testing the solution Deciding on the invention
Look at the pictures below and discuss in pairs which
pictures show inventions and which show discoveries.
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An amphibious car(2003)
This is the first car that can travel safely on water and on land. When moving on water, the wheels of the car turn sideways and move into the body. The underneath of the car is strong enough to sail as a boat. It is a prototype(原型) and is not yet being produced for sale. This is an interesting modern invention.
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Do you know the stages every inventor must go through before they can have their invention approved? Inventing is a scientific activity and so follows similar stages to those used in scientific research. Look at the list and work out a suitable order. Applying for a patent
Applying for a patent
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Patent office (专利局) plays the role of deciding what is an invention and what is not. And only inventions can get patents and so be recognized and protected.
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Stephenson’s “Rocket” (1781-1848)
George Stephenson was one of the first men to design engines for the railways which were new at that time. One of the first tracks to be laid was between Stockton and Darlington. Stephenson was one of the first railway engineers and in 1825 he drove the first train along the line.
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