人教版高中英语必修2unit3课文知识点详解.ppt

1、Unit 3 ComputersUnit 3 Computers基础落实基础落实.高频单词思忆高频单词思忆1.The development of the steam engine was a 1.The development of the steam engine was a great great (科技的科技的)advance.)advance.2.I haven2.I havent t (计算计算)the result of)the result of the maths problem.the maths problem.3.Life 3.Life (完全地完全地)changed)

2、changed when I went to college.when I went to college.4.People will build a large 4.People will build a large (人造人造 的的)lake in the new park.)lake in the new park.technologicaltechnologicalcalculatedcalculatedtotally/completelytotally/completelyartificialartificial5.Before going to school,all the chi

3、ldren are 5.Before going to school,all the children are given an given an (智力智力)test.)test.6.Difficulties will 6.Difficulties will a a as we do the work.as we do the work.7.7.P P ,I prefer to go to Beijing for,I prefer to go to Beijing for my holiday.my holiday.8.Do you know that football 8.Do you k

4、now that football c c who is who is standing there?standing there?9.9.“One World,One DreamOne World,One Dream”fully reflects the fully reflects the essence(essence(实质实质)and the)and the u u values values of the Olympic spirit.of the Olympic spirit.10.The invention of the television caused a 10.The in

5、vention of the television caused a r r in our daily life.in our daily life.intelligenceintelligenceriseriseersonallyersonallyoachoachniversalniversalevolutionevolution.重点短语再现重点短语再现1.1.从从时起时起2.2.结果结果3.3.如此如此以致于以致于4.4.在某种程度上在某种程度上5.5.在在的帮助下的帮助下6.6.处理；安排；对付处理；安排；对付7.7.看守；监视看守；监视8.8.共有；共用共有；共用9.9.弥补弥补10

6、.10.毕竟毕竟from.onfrom.onas a resultas a resultso.thatso.thatin a wayin a waywith the help ofwith the help ofdeal withdeal withwatch overwatch overin commonin commonmake upmake upafter allafter all.典型句式运用典型句式运用1.I developed very slowly and it took nearly 1.I developed very slowly and it took nearly two

7、 hundred years before I was built as an two hundred years before I was built as an analytical machine by Charles Babbage.analytical machine by Charles Babbage.我发我发 育缓慢，差不多到了两百年之后，查尔斯育缓慢，差不多到了两百年之后，查尔斯巴比巴比 奇才把我制成了一台分析机。奇才把我制成了一台分析机。（1 1）“It took/was+It took/was+一段时间一段时间+before+before 从句从句”是一个固定句型是一个固

8、定句型,意为意为“”。（2 2）beforebefore用于这类句型时的结构还有：用于这类句型时的结构还有：It didnIt didnt take/was long(t take/was long(或一段时间或一段时间)before.before.过了不久（一段时间）就过了不久（一段时间）就考点提炼考点提炼过了过了后才后才 It will take/be long(It will take/be long(或一段时间或一段时间)before.before.要过很久（一段时间）才要过很久（一段时间）才 It won It wont take/be long(t take/be long(或一段

9、时间或一段时间)before.before.不久（一段时间后）就会不久（一段时间后）就会2.As time went by,I was made smaller.2.As time went by,I was made smaller.随着时间随着时间 的推移，我被制造得越来越小。的推移，我被制造得越来越小。句中的句中的asas是连词，引导是连词，引导 从句，从句，意为意为“”或或“”。表示表示“随着随着”时，也可以用时，也可以用with,with,但但withwith后只后只 接名词短语。接名词短语。考点提炼考点提炼时间状语时间状语一边一边一边一边随着随着3.And my memory be

10、came so large that even I 3.And my memory became so large that even I couldn couldnt believe it!t believe it!我的记忆能力变得如此我的记忆能力变得如此 巨大，甚至连我自己都不能相信！巨大，甚至连我自己都不能相信！so+so+adjadj././advadv.+that.+that.意为意为 “”，引导结果状语从句。，引导结果状语从句。so thatso that引导引导 从句，相当于从句，相当于in order in order that,that,该从句中常用情态动词该从句中常用情态动

11、词may,might,can,may,might,can,could,will,would could,will,would和和shouldshould。考点提炼考点提炼如此如此以致以致目的状语目的状语4.After all,with the help of my electronic 4.After all,with the help of my electronic brain which never forgets anything,using my brain which never forgets anything,using my intelligence is what I in

12、telligence is what Im all about!m all about!不管怎么不管怎么 样，在我过目不忘的电子脑的帮助下，运用智能就样，在我过目不忘的电子脑的帮助下，运用智能就 是我的一切。是我的一切。with the help of my electronic with the help of my electronic brain which never forgets anything brain which never forgets anything是状语，是状语，说明主谓部分的伴随状况。在这个说明主谓部分的伴随状况。在这个withwith短语中，短语中，包含一个定

13、语从句包含一个定语从句 ,修饰修饰my electronic brainmy electronic brain。with the help ofwith the help of意为意为“”。考点提炼考点提炼which never forgetswhich never forgetsanythinganything在在的帮助下的帮助下5.What5.Whats more,you can use the Internet to s more,you can use the Internet to learn English.learn English.而且，你还能利用因特网学英语。而且，你还能利用

14、因特网学英语。What is moreWhat is more意为意为“”，常作，常作 语，相当于语，相当于besidesbesides或或 furthermorefurthermore。考点提炼考点提炼更重要的是；而更重要的是；而且且插入插入导练互动导练互动重点单词重点单词1.calculate1.calculate I began as a I began as a machine in France machine in France in 1642.(in 1642.(回归课本回归课本P P1818)观察思考观察思考 Mary always calculates the cost of

15、 goods Mary always calculates the cost of goods before she buys them.before she buys them.玛丽总是在买东西之前先估算好价钱。玛丽总是在买东西之前先估算好价钱。calculatingcalculatingMr.Li calculated that it would take him Mr.Li calculated that it would take him three hours to get to Shenzhen.three hours to get to Shenzhen.李先生估计他要花三个小时

16、才能到达深圳。李先生估计他要花三个小时才能到达深圳。What I said yesterday was not calculated to What I said yesterday was not calculated to hurt you.hurt you.昨天我说的话不是有意伤害你的。昨天我说的话不是有意伤害你的。归纳总结归纳总结calculate calculate 。calculate on/uponcalculate on/upon指望；打算指望；打算It is calculated that.It is calculated that.据估算据估算be calculated to dobe calculated to do打算做；故意做打算做；故意做be calculated forbe calculated for适合于适合于v v.计算；打算；推测计算；打算；推测即学即用即学即用（1 1）这些广告旨在吸引年轻的单身消费者。）这些广告旨在吸引年轻的单身消费者。The advertisementsThe advertisements attract young sing