高中英语必修2·Uint3·Computers--reading

How did the writer organize the text?
According to the time
Reading – II Careful reading Timeline
1642:_T_h__e_c_o_m_p__u_te_r__b_e_g_a_n_a_s_a__c_a_lc_u_l_a_t_in_g__m_a_c_h_i_n_e__
1) What’s the main idea of the text? A. The computer wants to find “who he is”. B. The functional change of the computer. C. The computer becomes popular around the world. D. The history of the computer.
birth I have truly been built to serve the
human race.
What can computers be used to do in our daily life?
ቤተ መጻሕፍቲ ባይዱ
In how many ways do we say the computer changed? What are they? • Size: smaller
Consolidation: Retelling
1642 1822
1936
began … calculating …France
The Analytical Machine … Charles Babbage
Alan Turing … wrote … built …
1940s 1960s
As large as connected … share … talk …
Fill in the blanks
I began as ac_a_lc_u_l_at_i_ng_m_a_c_h_i_n_e in 1642 in France. In 1822 I was built as an _A_n_a_ly_ti_ca_l_M__a_c_h_in_e. Then in 1936 Alan Turing
Task2: True or False?
1. I began as a calculating machine in FJraanpcaen in 1642.
2. My real father was ChaArlleasnBTuabribnagge , who wrote a book and build me in 1936.
A huge computer
I am a computer which can solve all kinds of problems and is used widely now .
A PC / desktop
I am a kind of computer which can be taken conveniently(方便).
These changes Since the 1970s
only … as my many new
memory
applications
improved.
…for me.
Support- calculating
tubes
communications
ing details
machine
transistors finance
they gave me a family connected by_a_n_et_w_o_r_k_. Now people call it the Internet. I was used in _o_f_fi_c_es_ and _h_om__e_s_ in the 1970s. Since my
I think high school students should surf the internet because…(first, secondly, thirdly) I think high school students should not surf the internet because…(first, secondly, thirdly…)
1 Who built the first analytical machine? Charles Babbage built the first analytical machine. 2 Who was the next important person to design
computers?
Alan Turing was the next important person to design computers.
abacus
I am a new calculating machine which can solve a large number of mathematical problems.
A calculator
I am built to solve some mathematical problems. But it is too big.
1822:_T_h__e_a_n__a_ly_t_i_c_a_l_m__a_c_h_i_n_e__w_a_s__m__a_d_e__b_y______ ______C_h__a_rl_e_s__B_a_b__b_a_g_e_.________________________
1936:__A_l_a_n_T__u_r_in_g__w_r_o_t_e_a__b_o_o_k_a_b_o_u__t _h_o_w__c_o_m_p_u__te_rs _______co_u__ld__b_e_m__a_d_e_t_o__w_o_r_k__as__a__u_n_i_v_er_s_a_l_m__a_c_h_in_e_. 1940s:_T_h_e__co_m__p_u_t_e_r_h_a_d__g_r_o_w_n__a_s_l_a_r_g_e_a_s_a__r_o_o_m_.___
2) What can you infer from the text? A. The computer has artificial intelligence. B. The computer changes a lot over the years. C. The computer was not connected by a network until in the early 1960s. D. Now the computer can only be used to deal with information.
analytical machine chips universal machine network
trade
robots mobile phones
PC laptop
World Wide medical operations
Web
space robots
Comprehending:
1. Choose the best answers
Who am I ?
Can you guess who am I?
I am very old now. I was born in China. Many people used me for calculating in the past, but now I am a bit lonely because they don’t like me now.
1970s now
Become very important in … deal with … communicate …
Writing :Should high school students surf the internet?
• Intelligence: cleverer
• Speed: quicker
• Function: calculating----dealing with …, communicating with…
• People’ opinion: clever & useful
Should high school students surf the internet(上网)?
Now: Computers connect people all over the world together.
Reading – III Detailed reading(P19)
Paragraph1 Paragraph2 Paragraph3
Topic sentence
Over time I have been changed quite a lot.
A laptop / notebook computer
I am a handheld device that combines computing, telephone/fax, and networking features.
Reading
Reading – I Fast reading
Task1
wrote a book and built au_n_i_v_er_s_a_l m__ac_h_i_n_e. As time_w_e_n_t _b_y, I was made _sm__a_ll_e_r but my memory got l_a_rg_e_r__ and l_a_r_g_er_. In the 1960s
3.After I got my new transistors in the 1960s, I became sbmigaglleerr but cleverer and quicker.
4.I was brought into people’s homes in the 1970s.
5.Since my birth I have been built to takseetrhvee/phlealcpe of human race.
_1_9_6_0_s: _T_h_e__f_ir_s_t_f_a_m_i_ly__o_f_c_o_m__p_u_te_r_s__w_a_s_c_o_n_n_e_c_t_ed _______to__e_a_c_h_o_t_h_e_r_. ________________________
1970s:_C_o_m__p_u_t_e_r_s_w_e_r_e__u_se_d__in__o_f_fi_c_e_s_a_n_d__h_o_m__es_.____