Unit 2 Books could be produced more quickly and cheaply

      3. our class is ______________twenty boys and twenty three girls.      4. the metal can be ____________ a knife. 
      5. this kind of car is _____________ many workers in the factory.4. write words on--  make a book   --    in those days  --    at a time       --    by hand        ---    as a result   ----ex. 1. he could even eat three hamburgers ____________, ____________ he became   very fat.      2. this picture is produced ___________, so it’s very expensive.      3. _______________ there were few people knew about computers.      4. they tried to _____________  paper  in order to ___________ 5. put… against     將…放進/刻進    hold… against   將…貼到    6. at the beginning of  在…初/ 開始時    after that          然后,之后    in a way            以…方式7. compare…. with….   與….相比 ,  與….相媲美you can’t compare him with tom, they’re different. as compared with… 與…比較he’s really done better as compared with last term9. rather than  勝過,而不愿e.g. he would choose sunday rather than saturday.       i would like to go with you rather than stay at home.   prefer to do… rather than do… 情愿…而不..         be replaced by    被….所替代     be read online     在網(wǎng)上閱讀 3. make notes to complete the timeline.4. answer the questions1. why were books expensive and rare before the invention of printing?2. why did ideas spread more quickly when books became cheaper?3. what can we use instead of books to get information?answer the questionsuse the words in the box: create, develop, hold keep, produce, receive, spread1. when was paper first created?    when do you think books were first created?2. were books produced by hand or by machine at first?3. what was the paper held against? when was printing developed?5. what can be kept on cd-roms?6. what can be received online?