1、1. What did computers look like in the 1970s?2. Where could they be seen? Lesson 51 Predicting the futurenotoriously difficult / harmful_ is notoriously dangerous.Drink-driving_ is notorious for_LadenTerror attack / terrorisminfamoususer-friendlyeco-friendlya reader-friendly novela consumer-friendly

2、 policymulti-purposemulti-functionan alternative way to do sthchoice. have no alternativeThe doctor diagnosed the illness as influenza.relieve sb of sthearthquake/ hunger reliefclerical staffclerical errorclerkWho could have imagined?No one could have imaginedpeoples homes (private places)public pla

3、cesPredicting natural disasters is _. Who _, on May 12th, 2008, for example, a magnitude 8.0 earthquake struck Sichuan and claimed a great many lives?mainframe computers-large, occupying, employingmainframe computers occupying, employing-large and run onbe taken over=be replacedor PC, as it has come

4、 to be known1.What is the main idea (theme) of the second paragraph?2. What is the authors purpose of writing the 2nd paragraph?be launched=be introducedpoint the way to=indicate/ direct the way toIt marked the prelude to the era of information.humble/ obscure beginnings1. What did Bagrit forsee? Wa

5、s he right? 2. What did Bagrit fail to predict?Considering+ that/ how =When you think aboutdismiss=abandonforeseea time whenpalm computer (PDA)The year 2050 would be a time when, when., when, whenour clothes would adjust themselves to the temperature we would feed on health pills to absorb nutrition

6、 and energyhouses would withstand all kinds of disasterswe would travel by high speed transportation means fueled by eco-friendly energy.China is a place where, where, where.five thousand years of history and culture have developeda high level of modernization emergesprosperity of the whole nation w

7、ill be attainedSth predicted by BagritSth Bagrit failed to foreseeworldwide system, communicatecomputer, telephone networksobtain information on every known subjectby clicking the mouse and typing in the key wordswere alive todayexpectpredictforeseeforetellHighlights of the lesson1. the contrast between the present and the past (Who could have imagined)2. The functions of computers and the definition of the Internet3. Sentences