人教版BOOK2第三单元WhoamI.ppt

Huge computer PC (personal computer) Similarity? They’re computers in different stages. WHO AM I ? Unit 3 Computers——Reading Step 2 Just have a fast reading Step 3 More detailed reading! a calculating machine, in 1642 an analytical machine, (in 1822) a “universal machine”, in 1936 (not a real machine, but just a mathematical model) a huge computer, as large as a room, in the 1940s Para. 2 technical words Memory: storage or storage capacity as of a computer, disk, etc. These changes only became possible as my memory improved. tubes transistors small chips network World Wide Web Para.3 Find some supporting details for the topic sentence.1 minute. Since the 1970s many new applications have been found for me. communications finance trade robots mobile phones medical operations space rockets exploring the Moon and Mars Writing skills personification（拟人） narrative perspective: first-person narrative（叙述角度：第一人称角度） chronological order(时间顺序) main ideas and supporting details （主旨+支撑细节） communication chatting sending E-mails expressing ideas online making new friends … entertainment playing games watching movies listening to music … information reading news searching for useful information, such as price information, job information and so on asking questions and seeking for help … commerce/finance online shopping online transferring accounts paying all kinds of bills, such as water electricity fees, cell phone fees and so on speculating in stocks online … work and job using computers to do jobs applying for jobs online doing research … Homework * * First, let’s play a game! What are they ? laptop(notebook computer) PDA (personal digital assistant) robot What’s next? i- robot (intelligent robot) Unit 3 Computers ——reading Task1 Look at the pictures and the title of the reading passage. Predict what it is going to be about. Prediction Task2 Look at these inventions. Put them in order according to the time when t