Unit 4 Period 5 Lesson 3 课件 高中英语新北师大版必修第二册（2023~2024学年）

北师大必修第二册Unit4(

英语

)ENGLISHLesson3InternetandFriendships(1)新课导入

Let’stalkDo

you

think

theInternet

helps

or

harms

friendships?Giveyourreasons.PositiveaspectsNegativeaspects◎bringpeopleclosertogether◎makespeopleself-centred1.通过阅读，整理议论文的文体结构，包括关联词的使用、主题句与论据之间的关系等；2.能学习复合词的构成规律及用法。2Readthefirstblogpost“TheInternetHarmsFriendships”.

Underlinethegeneralideaandthe

topicsentenceforeachargument.SkillBuilderIdentifyingTopic

SentencesandSupporting

DetailsAtopicsentencestatesthegeneralideaorthemainpointofatextorparagraph.Supportingdetailsgivemoreinformationaboutthattopic.Readthetexttogetthegeneralidea.Identifyonesentenceforeachargumentthatstatesthisgeneralidea.Thisisthetopicsentence.Readthetextagain.Lookforextrainformationthatsupportsthetropicsentence,e.g.examples,reasons.Thesearethesupportingdetails.While-reading课堂学习ThegeneralideaWhiletheInternetcanbringpeopleclosertogether,itcanalsoharmfriendships.The

topicsentenceforeachargumentArgument

1:

Firstly,

talkingonlineisnoreplacementforface-to-facecontact.Argument

2:

Secondly,

the

Internet

can

make

people

self-centred.Argument

3:

Thirdly,

online

relationships

may

not

be

what

they

appear

to

be.3Readthefirstblogpost

again.Completetheinformationontheleftsideofthediagram.

NegativeaspectsArgument1Topic

sentence:

Firstly,

talkingonlineisnoreplacementforface-to-facecontact.Supporting

details:

Imagesreallycannotreplaceareal-lifesmileorhug.Communicatingthroughascreenmakesitmoredifficultforchildrentoconcentrateorshowkindnesstoothers.

NegativeaspectsArgument2Topic

sentence:

Secondly,

the

Internet

can

make

people

self-centred.Supporting

details:

Insteadofhavingproperconversationswiththeirfriends,somepeopleareonlyconcernedwiththeironlinepopularity.In

addition,

alotofthecontentpostedonsocialmediaisshallowortrivial.NegativeaspectsArgument3Topic

sentence:Thirdly,

Online

relationships

may

not

be

what

they

appear

to

be.Supporting

details:

Friendshipsarebuiltonthebasisoftrust,andwithonlinecommunicationyoucanneverbe100percentsurethatthepeopleyouarechattingtoisbeinghonestaboutwhotheyare.4Readthesecondblogpost“TheInternetHelpsFriendships”.

CompletetheinformationontherightsideofthediagraminActivity3.

PositiveaspectsArgument1Topic

sentence:

Firstly,

theInternetmakes

communication

muchmoreconvenient.Supporting

details:

Youcanstayintouchwithfriendsnomatterwhereyouareorwhatyouaredoing.PositiveaspectsArgument2Topic

sentence:

Secondly,

theInternethasalsomadecommunicationmorefun.Supporting

details:

Youcansharephotos,videos,newsstoriesandwebsiteswithyourfriendsonline.PositiveaspectsArgument3Topic

sentence:

Thirdly,

onlinecommunicationcanactually

bringpeopleclosertoeachother.Supporting

details:

Wheneversomeoneneedshelp,friendsfromallovertheworldcanimmediatelyprovideusefulsuggestionsor

information.Thismakesfriendsfeellovedandcaredfor.Post-reading6GroupworkThinkandshare.1.Lookatthesentencefromparagraph2inthefirstblogpost,“Itistheseskillsthatenableustodeveloplifelongfriendships”.Whatdoes“these”referto?Doyouagreewiththestatement?Whyorwhynot?2.Inthesecondblogpost,whatdoesEileenKennedy-Mooremeanwhenshesaysthatonlinefriends“fillholesreal-lifefriends

can’t”?

Giveyourreasons.SuggestedAnswers1.Theword“these”referstosocialskills,likeconcentratingorshowingkindnesstoothers.2.Onlinecommunicationisasolutionwhentherearedifficultieswithface-to-facecommunication,i.e.peoplelivefarapart(andarefriendsorhavecommoninterests),apersonsuffersfromsocialanxietyandmayfinditeasiertotalktopeopleonline,etc.7Arethereanyotheradvantagesordisadvantagesofonlinefriendships?Ifso,listthenbelow.AdvantagesDisadvantagesPeoplecankeepcontactwithmanyfriendsatthesametime.Peoplegettoknowmorenewfriendsonline.Themessagecanbesavedtoreadlaterwhenpeoplehavetime,andonlinefriendsaremoretoleratewithdelayedreply.OtheraspectsAnonymousonlinefriendsmaybedangerous.Itiseasytobetrappedwithtoomanymessages,andittakestime.Itisnoteasytohavethought-provokingcommunicationwithonlinefriends.Otheraspects8Herearefivemethodswritersoftenusetosupporttheirarguments.Readthetwoblogpostsagain.Identifywhatmethodsthewritersused.Findexamplesfromthetext.acitingideasfromexpertsorauthoritiesbgivingexamplescusingdatadreferringtocommonknowledgeeusingcomparisonandcontrastPost1.a(lines5—7);b(lines12—15);d(lines8—10)Post2.a(lines16—17);d(lines12—14);e(lines6—9)9Completetheadjectives.Chooseatleastfiveadjectivestowritefivesentencesinthespacegiven.YoumayexpresseitherpositiveornegativeopinionsabouttheuseoftheInternet.1r__w__rding 6b__ief2s__all__w 7c__ea__ive3c__n__e__ient 8ch__erf___l4sel__-cen____ed 9tr__s__ing5l__mi__ing 10th____ght-provokingeahoovnftritrrteuutou

北师大必修第二册Unit4(

英语

)ENGLISHLesson3InternetandFriendships(2)harm

vt.&n.

伤害，损害E.g.ToomuchTV-watchingcanharmchildren’sabilitytolearn.看电视过多会损害孩子们的学习能力。Keypoints[归纳拓展]【辨析】harm意为“危害,使人受伤害”,可用于生物,常用于抽象事物。damage通常指部分性的损坏,往往指价值、用途降低或外表损坏等,也表示可以修复的破坏。destroy指彻底的毁坏、毁掉或毁灭,往往无法或难以修复。ruin强调“毁坏”,使美好的事物失去优良的特性或特征,不能恢复。[即学即练]单句语法填空1.It’sbelievedthattobaccocontains________(harm)productstohealth.

句型转换2.Thesepillsdoyourlungsharm.→Thesepills___________________yourlungs.

→Thesepills___________________yourlungs.

harmfuldoharmtoareharmfultoreplace

vt.

取代;接替E.g.Firstly,talkingonlineisnoreplacementforface-to-facecontact—imagesreallycannotreplaceareal-lifesmileorhug.首先,网络交流不能替代面对面的交往——图像确实不能代替真实生活中的微笑或拥抱。[归纳拓展][即学即练]单句语法填空1.Paperbookswillneverbe____________

(replace)bye-books.

2.Somepeopleusemeal____________

(replace)tohaveabalanceddiet.

replacedreplacementsfocus

vi.给予某物关注n.焦点E.g.Inmyopinion,friendsshouldfocusmoreonface-to-facecommunication,andlessononlinecommunication.依我之见,朋友之间应该更专注面对面的交流,少些在线交流。[归纳拓展]focus...on 集中……于focuson 关注infocus

焦点对准的

outoffocus

焦点未对准的[即学即练]单句语法填空1.Ifoundithardtofocusmymind________thediscussion.

2.Withalltheeyes___________(focus)onher,shefeltnervous.

onfocusedItistheseskills

thatenableustodeveloplifelongfriendships.正是这些技能才使我们能保持终生的友谊。句式解读:句中“Itis...that”为强调句型。强调句(1)基本结构：Itis/was＋被强调部分＋that/who＋句子其他部分。Itisthepeoplewhoobeytherulesthat(who)matter.(2)一般疑问句的强调句型：Is/Wasit＋被强调部分＋that/who＋句子其他部分？WasitthreeyearsagothathewenttoAmericaforfurtherstudy?(3)特殊疑问句的强调句型：疑问词(被强调部分)＋is/was＋it＋that＋句子其他部分？Whenwasitthatyougotpromoted？你是什么时候升职的？(4)not...until...结构的强调句型：Itis/wasnotuntil...that...Itwasnotuntilneartheendoftheletterthatshementionedherownplan.[即学即练]单句语法填空1.Itwasonlywhenthecarpulledupinfrontofourhouse______wesawLilyinthepassengerseat.2.______wasat5o’clockthatthevisitorsfinallyarrivedatPudongInternationalAirport.3.—Wereallthethreepeopleinthecarinjuredintheaccident?—No,itwasonlytwopassengers__________gothurt.thatItthat/whoFocusonlanguage:CompoundWords复合词1.复合名词名词+名词：football足球名词+动词：snowfall下雪名词+动词-ing形式：horse-riding骑马名词+介词+名词：daughter-in-law儿媳形容词+名词：greenhouse温室副词+名词：income收入介词+名词：afternoon下午动词-ed形式+副词：grown-up成年人2.复合形容词名词+形容词：world-famous世界闻名的名词+动词-ing形式：peace-loving热爱和平的名词+动词-ed形式：heart-broken伤心的形容词+名词：long-distance长途的形容词+形容词：dark-blue深蓝色的形容词+动词-ed形式：new-born新出生的副词+动词-ing形式：hard-working勤劳的数词+名词：first-class头等的数词+名词+形容词：ten-year-old十岁大的3.复合动词名词+动词：water-cool用水冷却形容词+动词：quick-charge快速充电副词+动词：outact行动上胜过4.复合代词形容词+名词：something某物形容词+副词：anywhere任何地方[即学即练]完成句子1.Itwasonlya____________(15分钟的)trip.

2.Thesestudentsareallfrom_________________(说英语的)countries.

3.Weshouldreducetheemissionof____________(温室)gases.

4.____________(在……下画线)thesentencesyoudon’tknow.

fifteen-minuteEnglish-speakinggreenhouseUnderline10Completethecompoundwordswithawordfromthecircles.Thenusetheminthesummarybelow.1friend_____2any

_____

3per

_____4web

_____CompoundWordssiteshipcentthing5

on_____6

self-_____

7

real-_____8

smart_____phonelinecentredlifeshipthingcentsitelinece