学年北师大版英语必修第二册Unit 4 INFORMATION TECHNOLOGY Section Ⅱ Lesson 1.docx

学年北师大版英语必修第二册Unit 4 INFORMATION TECHNOLOGY Section Ⅱ Lesson 1.docx

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学年北师大版英语必修第二册Unit4INFORMATIONTECHNOLOGYSectionⅡLesson1

SectionⅡ　Lesson1

1．Discussion—Doyouuseaphotoofyourselforadifferentimageasanavatarwhenyouareonline？

Why?

I__use__a__cute__animal__avatar__instead__of__a__photo__to__avoid__online__safety__risks.

2．Prediction—LookatthepicturesandthetitleonPage8～9，andpredictwhatthetextisprobablyabout.

The__text__is__mainly__about__the__definition__of__avatars__and__their__history.

1．Firstreading—Readthetextandmatchthemainideawitheachparagraph.

Part1（Para.1）　　　　A．Theviewsontheuseofavatars

Part2（Para.2）B．Avatarsareeverywherenowadays.

Part3（Paras.3～4）C．Thehistoryofavatars

Part4（Para.5）D．Thedefinitionofavatars

Part5（Para.6）E．Thepurposesofavatars

答案　Part1D　Part2C　Part3E　Part4B　Part5A

2．Secondreading—Readthetextcarefullyandchoosethebestanswer.

（1）Whenwereavatarsbeingusedinwebchatslikeinstantmessenger?

A．Inthe1980s.　　　　　　　　　　　　B．Bythelate1990s.

C．Nowadays.D．Inthe1970s.

（2）Whatdoesapictureofacutecatmean?

A．“Ilikerelaxingandhavingfun.”B．“I’mareallyfunnyperson.”

C．“I’mtall，youngandnice－looking.”D．“Ilikebeingcreative.”

（3）Whocouldseeyouravatars?

A．Onlyyourfriends.B．Manypeople.

C．Noone.D．Onlyyourfamily.

（4）Whatpeoplecanuseavatarsdo?

A．Actjustlikearealperson.

B．Travelaroundbigger，moreexcitingvirtualworlds.

C．Helpothersonline.

D．Cheatothersonline.

（5）Whatisthepurposeofthetext?

A．Tointroducesomeinformationaboutavatars.

B．Toexpressyourselfusingpictures.

C．Tointroducethehistoryofavatars.

D．Tointroducedefinitionofavatars.

答案　

（1）B　

（2）A　（3）B　（4）D　（5）A

3．Thirdreading—Readthetextcarefullyagainandthenfillintheformbelow.

Details

Definition

adigital①imagethatrepresentsanInternetuser

②History

1980s

Thefirstsimple2Davatars③appearedinrole－playingcomputergames.

Late1990s

Avatarswerebeingusedinweb④chatslikeinstantmessenger.

Purposes

Toexpress

oneself

Peoplediscoveredtheyweregoingtohavethepowertocreatenewidentitiesthatdidn’tlookoractliketheirreal⑤selvesatall.Avatarsletyouexpressyourselfandtheygiveyoulotsofroomfor⑥creativity．

Torepresent

oneself

Theavataryouchoosesaysalotaboutyour⑦personality.

Views

Positive

Someviewavatarsinamore⑧positiveway.

⑨Negative

Theuseofavatarshasalsocausedafew⑩concerns.

Discussing

1．Whatdoesthewritermeanbysaying“Theavataryouchoosesaysalotaboutyourpersonality.”？

Doyouagreewiththewriter？

Giveexamplestosupportyouropinion.

The__answer__is__open.

2．Canyougiveexamplesofhowtheuseofavatarsmaycauserisksonline？

Whatcanyoudotopreventsuchrisks?

The__answer__is__open.

常用网络虚拟形象及目的

1．acuteanimalavatar

2．anavatarinfancyclothes

3．acartooncharacteravatar

4．toexpressoneselffreely

5．toexperimentwithinterestingthings

6．totrickothers

7．tocreatereal/digitalidentities

8．toavoid/causeonlinesafetyrisks

9．toliveinavirtualworld

10．toprotectoneself

如何猜测单词词义

Wecanguessthemeaningoftheunfamiliarwordsaccordingto：

1．Generalcontext（广义语境）；

2．Definitions（directorindirect）（直接定义或间接定义）；

3．Examples（例子）；

4．Synonyms（同义词）；

5．Antonyms（反义词）；

6．Wordstemsandaffixes（词干和词缀）．

语言现象感知

Ⅰ.单词理解

体会句中加黑单词的词性和含义

1．Ofcourse,theavataryouchoosesaysalotaboutyourpersonality.__n．个性

2．Well－knowncartooncharactersorlaughingmonkeyssay“I’mareallyfunnyperson.”__v．说明

3．Theuseofavatarshasalsocausedafewconcerns.n.担心

4．Someusersworrythattheyarespendingsomuchtimeinvirtualworldsthattheyarebecomingafraidofmeetingpeopleintherealworld.adj.虚拟的

Ⅱ.词块积累

写出下列词块的含义

1．awidevarietyofforms多种形式

2．havefun玩得开心

3．lookmoreorlesslikethem看起来或多或少像他们

4．makeafewimprovements做一些改进

5．expressyourself表达你自己

6．havethepowertocreatenewidentities有能力创造新的身份

7．atthesametime同时

8．inamorepositivelight从更积极的角度来看

Ⅲ.句式欣赏

1．when引导时间状语从句；第一个that引导宾语从句；第二个that引导定语从句

Whenpeoplestartedcreatingtheirownavatars,theydiscoveredthattheyweregoingtohavethepowertocreatenewidentitiesthatdidnotlookoractliketheirrealselvesatall.

2．v.－ing形式作宾语

Ilikerelaxingandhavingfun.

3．that引导定语从句

Mostpeoplecreateavatarsthathavesimilarfeaturestotheirpersonalitiesandthatlookmoreorlesslikethemandactlikethem.

Ⅰ.单词语境记忆——根据英汉提示写出单词的适当形式

1．Nowadays（现今）peopletravelincarsratherthancarriages.

2．He__tricked（诱骗）thebeautifulgirlintolendinghim10，000yuan.

3．Nowadayspeoplearemore__concerned（担心）abouttheenvironmentwheretheylive.

4．Youlookgoodwithyournew__hairstyle（发型）．

5．Lastweektheywentovertheirseedstomakeacarefulselection（选择）．

6．Itis__obvious__（obviously）thatsheistheverypersonforthejob.

7．Thewritingofpoems,storiesorplaysisoftencalledcreative（creativity）writing.

8．Thereare__various__（variety）waysofsolvingtheproblem.

9．Herecognizedher__instantly（instant）,eventhoughhehadneverseenher.

10．Itisvirtually（virtual）impossibletopredictthefutureaccurately.

Ⅱ.短语语境填空——根据汉语提示写出适当的短语

1．Imadethiscakespecially,withbrownsugarinstead__of（代替）white.

2．I__look__forward__to（期待）seeingyouagainsoon.Goodbye.

3．A__variety__of（各式各样的）foodissoldatthesupermarket.

4．Manypeopleare__concerned__about（关心）thepollutionoftheenvironment.

5．Hecamethe__instant（一……就……）Icalledhisname.

Ⅲ.句式语境仿写

1．Theyalsoexperimentwiththingslikedifferenthairstyles—whichsaysalot,perhaps,aboutwhattheywanttolooklike.

他们也会尝试像不同的发型这样的事情，这很可能会体现他们理想中的样子。

[仿写]　我们的家乡变化很大，它现在与数年前的样子完全不同。

Ourhometownhaschangedalot,andnowitisquitedifferentfromwhat__it__used__to__beafewyearsago.

2．Someusersworrythattheyarespendingsomuchtimeinvirtualworldsthattheyarebecomingafraidofmeetingpeopleintherealworld.一些网民开始担心自己在虚拟世界沉溺太久，以至于开始害怕在现实中与人交往。

[仿写]　当球迷们看到贝克汉姆的时候，他们如此激动以至于大喊大叫。

WhenthefootballfanssawBeckham，theygotso__excited__thattheycriedout.

记单词

Ⅰ.一言串记多义词

Ourparentsareconcernedaboutourhealthandfuture.AsfarasI’mconcerned,weshouldtalkwithourparentsandtellthemourconcerns.

Ⅱ.词缀助记派生词

1．名词后缀：

－tion，－ty

select（v.）→selection（n.）

vary（v.）→variety（n.）

2．副词后缀：

－ly

instant（adj.）→instantly（adv.）

virtual（adj.）→virtually（adv.）

obvious（adj.）→obviously（adv.）

Ⅲ.合成词一族

now＋a＋days→nowadays

hair＋style→hairstyle

句型公式

1．what引导的宾语从句

2．“so...that...”固定句型，意为“如此……以至于……”

1．trickvt.欺骗，诱骗，哄骗n．骗局，把戏，玩笑，诀窍

totrickothers（教材P8）来欺骗别人

[合作探究]　体会trick的用法和意义

TheboyshidJohn’sbiketoplayatrickonhim.

男孩子们把约翰的自行车藏起来捉弄他。

Youcan’tteachanolddognewtricks.老狗学不会新把戏。

Hetrickedmeintolendinghim$100.他骗我借给了他100美元。

Hetrickedthegirloutofallhermoney.

他骗了那个女孩所有的钱。

[自主发现]

①playatrick/tricksonsb　欺骗/捉弄/戏弄某人

②tricksbintodoingsth骗某人做某事

③tricksbout__ofsth从某人处骗走某物

[巩固内化]　单句语法填空

①Bytradition,insomecountries，peoplecanplaytricksoneachotherbeforenoononApril1,butthey’llbefoolishiftheydoitintheafternoon.

②Today，afallguyisapersonwhoistrickedintotakingtheblameforthecrimeorwrongdoingofsomeoneelse.

③Theoldwomanwastrickedoutofhergoldenearrings.

[思考]　表示“玩弄；拿……开玩笑”的短语还有哪些？

make__fun__of__sb，play__a__joke/jokes__on__sb

2．instantadj.即时的，立刻的，马上的n．瞬间；片刻　instantlyadv.立即地conj.一……就……

Bythelate1990s,theyhadbeenusedinwebchatslikeinstantmessenger.（教材P9）到了20世纪90年代后期，它们已经被应用在网络聊天，如实时通信中。

[合作探究]　体会instant的用法和意义

Thetelegramaskedforaninstantreply.这封电报要求立即回复。

Ishallbebackinaninstant.我马上就回来。

Icouldn’tanswerforaninstant.我一时答不上来。

Theinstant（that）Isawhim,Iknewhewasthemanthepolicewerelookingfor.我一看见他就认出他正是警方在寻找的那个人。

[自主发现]

①aninstantreply　立即回复

②inaninstant片刻，瞬间

③foraninstant一瞬间

④theinstant（that）一……就……

[词块积累]

instantnoodles/coffee方便面/速溶咖啡

amatterofinstantimportance一件紧急的事情

atthatinstant在那瞬间

[巩固内化]　单句语法填空

①Sherecognizedmeinstantly（instant）shecaughtaglimpseofme.

②Youseethelightningtheinstantithappens，butyouhearthethunderlater.

③Inaninstant,hetookoffhiscoatandjumpedintothewater.

[思考]　表示“一……就……”的结构还有哪些？

the__minute，the__moment，the__second，as__soon__as，immediately，directly，hardly...when...，no__sooner...than...等。

3.concernn．担忧，忧虑vt.与……有关；使担心　concernedadj.担心的，烦恼的，忧虑的　concerningprep.关于；有关

Theuseofavatarshasalsocausedafewconcerns.（教材P9）

虚拟形象的使用也引起了很多的担忧。

[合作探究]　体会concern的用法和意义

Sheshowedgreatconcernforherson’sillness.她非常担心儿子的病情。

SheisconcernedabouthowlittlefoodIeat.

她见我吃得那么少，很是担忧。

ThebookisprimarilyconcernedwiththeeconomicsituationinEuropeduringtheWorldWarⅡ.本书主要讲的是第二次世界大战期间的欧洲经济形势。

Everyonewhowasdirectlyconcernedintheincidenthasnowresigned.

与该事件有直接牵连的人现在均已辞职。

AsfarasIamconcerned,Iprefertoworkinateam，whichoffersmeachancetolearnhowtogetalongwithothers.就我而言，我更愿意在团队中工作，这为我提供了如何与他人相处的学习机会。

[自主发现]

①showconcernfor　对……表示关心

②beconcernedabout/for关心/挂念……

③beconcernedwith/in与……有关/有牵连

④as/sofaras...beconcerned就……而言

[语境串记]

Themayorwasveryconcernedabouttheworkers’safety.Heshowedmuchconcernforthosewhoworkedundergroundandaskedthemsomequestionsconcerningsafety.市长很关心工人的安全。

他对那些在地下工作的人非常关心，并且向他们询问了一些关于安全的问题。

[名师提醒]

concerned充当前置定语时，意为“关心的，挂念的”；如果表示“有关的”，作定语要后置。

如：

aconcernedfather一位担心的父亲；allthepeopleconcerned所有相关的人员。

[巩固内化]

（1）用concern的适当形式填空

①MoreandmoreChinesepeopleareconcernedaboutwildlifeconservationandenvironmentalprotection.

②AsfarasIamconcerned，parentsshowtoomuchconcernaboutthefutureoftheirchildren.Inotherwords，theyaretooconcernedabouttheirchildren’sfuture.

③Manyteenagersareinterestedinthenovelsconcerningthe