Unit3PronunciationSentencestress基本規(guī)則：實詞重讀，虛詞不重讀實詞虛詞名詞、動詞、形容詞、副詞、數(shù)詞冠詞、介詞、連詞1.名詞例：An‘elephantisan‘a(chǎn)nimal.Thereisa‘bookonthe‘desk.在句子中實詞常重讀：2.動詞（實意動詞、行為動詞、非謂語動詞）例：I‘thinkyou‘knowhim.He‘takesa‘walkafter‘supperevery‘day.We‘satatthe‘desk‘writinga‘letter.3.形容詞例：The‘skyis‘blue.It’sa‘dulland‘disappointing

‘film.4.副詞例：Theycan‘speak‘English‘fluently.

‘Wheredidyou‘buyit?5.數(shù)詞例：His‘firstdaughteris‘fifteen.He‘bought‘ten

‘cupsandI‘boughtonly‘four.1.冠詞例：An‘elephantisan‘a(chǎn)nimal.Thereisa‘bookonthe‘desk.在句子中虛詞不重讀：2.連詞例：He‘cameand

‘spoketous.Let’s‘runorwe’llbe‘late.3.介詞例：‘Whatareyou‘lookingat?Note:1.介詞位于句首時常重讀.例：‘Onhis‘way‘homehe‘metan‘old‘friend.2.Do/does/did用于肯定句表示強調(diào)時，要重讀.例：

He‘does

‘needyour‘help.3.助動詞和情態(tài)動詞與not構(gòu)成縮略式要重讀.例：I‘don’t

‘wantto‘gotheretoday.Readthesentencesandnoticewhichwordsarestressed：1.Wecan’tstayanylonger.2.Heworkedhardfortheexam.3.HewassurprisedwhenItoldhimthenews.‘練一練

‘‘‘‘‘‘‘‘Unit3WriteablogaboutonlinesafetyWhatisablog?Ablogisapersonalonlinediary.Howtowriteablogaboutonlinesafety?IntroductionTellthereaderaboutyourselfandwhatyouknowaboutthetopic.BodyTellthereaderwhattheyshoulddoorkeepinmind.EndingEndbyaskingthereaderstowritecomments.Introduction:Tellthereaderaboutyourselfandwhatyouknowaboutthetopic.TodayIwillblogaboutaquestionthatmanypeopleareconcernedabout---howtokeepsafetyonline?IamanInternetadministratorinacompany,soIhaveacquiredalotaboutonlinesafety.Body:Tellthereaderwhattheyshoulddoorkeepinmind.1.First,don’tpostpersonalinformationonline.2.What’smore,whenyouareshoppingonline,you’dbetterusestrongpasswords.3.Lastbutnottheleast,nevermeetsomeoneyoumetonlinealone.Ending:Endbyaskingthereaderstowritecomments.Haveyouhadanybadexperiencesonline,ordoyouhavesomegoodadviceforstayingsafe?Postyourcommentsbelow.Theremustbesomeotherusefultipsaboutonlinesafety.Ifyou’dliketoshareyouropinionwithus,Iwouldbeveryglad.Youarewelcometomakecommentshere.

假定你是一名網(wǎng)絡(luò)工程師，最近有很多學(xué)生向你咨詢?nèi)绾文馨踩檬褂镁W(wǎng)絡(luò)進(jìn)行學(xué)習(xí)和娛樂，請以此為內(nèi)容寫一篇博客文章，告訴學(xué)生們一些網(wǎng)絡(luò)安全的基本要求。WiththedevelopmentoftheInternet,itappealstomoreandmorestudents.Notonlycantheystudyonline,butalsotheycansurftheInternettoamusethemselves.TodayIwillblogaboutaquestionthatmanystudentsareconcernedabout---howcanwekeepsafetyonline?

First,whilechattingwithothersinanonlinechatroom,keepinmindthatdon’tgiveouttoomuchpersonalinformation.Ifyouareinvitedtomeetsomeoneyoumetonline,neverhesitatetosayno.Second,ifyouneedtogoshoppingonline,rememberthatyou’dbetteruseawebsiteyouarefamiliarwith.Publiccomputersareusuallynotsafeforyoutoenteryourpasswords.Lastbutnottheleast,bepolite.Whenyouareonline,itisbestforyoutobeaspoliteasinthereallife.Themorepolite