牛津英语模块七第一单元reading.ppt

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Part Two:(L26-52)
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Early history of sound devices(26-32)
1877 : Thomas Edison made the first recording of a human voice.
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Early record players used __t_u_b_e_s
1938 The first color TV program was broadcast
1951 Regular color TV broadcasts began in the USA
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Early history(1-17)
John Logie Baird Most early TV broadcasts were made using his system. However, his system was very _p_r_im__it_i_v_e and had many _d_r_a_w_b_a_c_k_s___.
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P—h—ilo—F—ar—nsw—o—rth— He made important _b_r_e_a_k_t_h_r_o_u_g_h_s_ in the
development of TV. Modern TVs use many of
the __p_r_i_n_c_ip_l_e_s_ first discovered by him.
to record on.
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He used discs as alternatives to tubes.
Who's he? Emile Beriner
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Sound and video devices (33-41)
steel tape
In1982, the first_t_a_p_e_r_e_c_o_r_d_e_r_s__used to copy sound were in Germany. Most early recorders employed _s_te_e_l_t_a_p_e__ to record on.
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Part One:（L1-25)
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black-and-white TV
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Make a timeline of the development of TV
1925
The first public TV broadcast were made in the USA
1928
Long-distance TV broadcast was made between the UK and the USA. Regular public broadcasting began.
a few years after it was invented. ( F（12-14） ) 2. People without satellite dishes do not benefit at all from satellite TV broadcasts. ( F（24） )
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Portable cassette player were develope by the _l_a_te_1_9_6_0_s
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Video recorders
By the late 1970s, video recorders for home use were introduced.
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The Modern age(19-25)
1962 Satellites were used to broadcast TV Satellites make TV _a_c_c_e_ss_i_b_le_ to people who live far away from cities.
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Satellite TV dishes They can often be seen distributedthroughout the
M7 Unit1 Living with technology
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refrigerator
2
washing machine
3
Air conditioner
4
microwave oven
vacuum cleaner
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desktop
laptop
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The evolution of video and sound devices
Looking at subtitles
（Leabharlann Baidu标题）
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_E__a_rl_y_history of TV
TV
The_m__o_d_e_r_n age: Cable TV, satellite TV, digital TV,…
(in order of__ti_m__e_ )
Audio Early history of_s_o_u_n_d__r_e_c_o_rd_ers devices _S_o_u_n_d__a_n_d_v_i_d_e_o__ goes digital
countryside and remote areas.
However, most people benefit __fr_o_m__ satellite TV,
as local TV companies broadcast the _s_ig_n_a_l_s_ to
the population living nearby.
Sound and video go digital
Digital th_e__f_ir_s_t_C_D__s_(1982) _V_C_D____(1993) era
数字时代 _D_V__D___(1995)
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CD player
walkman
iPad
MP4
MP3
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Reading (Part C1): 1. Color TV became popular within just
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Reading strategy: understanding headings
If you want to obtain some specific information, for instance, information about satellite TV, from this passage as fast as possible, what will you do?