Unit 4 Information Technology Lesson 1 课件-高中英语北师大版（2019）必修第二册

UNIT4InformationTechnologyLesson1Avatars语法：过去将来时过去将来时(定义）：过去将来时表示从过去某时看将要发生的动作或存在的状态。eg.Ithoughthewouldn'tattendthesocialevening,buttomysurprise,hecame.我原以为他不会参加这个联欢晚会，但是令我惊讶的是，他来了。eg.HeaskedmeifIshouldbeintheofficeintheafternoon.他问我下午是否在办公室。过去将来时的表示方法

(1)would/should+动词原形，would用于所有人称，should只用

于第一人称。

eg.Shetoldusthatshewouldnotgowithus,

itrained.她告诉我

们，如果下雨的话她就不和我们一起去了。

特别提醒:"would+动词原形"也可表示过去经常性、习惯性的动作。eg.

WhenIwassmall,mumwouldreadmestoriesatnight.

在我小的时候，妈妈常在晚上给我讲故事。(2)was/weregoingtodo表示过去打算/计划做某事或客观迹象表明要发生的事。eg.IwasgoingtoseeMrBrownthenextday,buttheappointmentwascancelled.我本打算第二天去看布朗先生的，但预约被取消了。(3)was/wereabouttodo表示过去正要/即将做某事eg.WhenIgottheretheywereabouttoleave.我到那儿的时候他们正要离开。特别提醒:"Sb.beabouttodo.…when."句型表示"某人正要做某事,突然……"。eg.Iwasabouttoleavewhensomeoneknockedatthedoor.我正要离开，突然有人敲门。(4)was/weretodo表示过去计划或安排将要做某事，如果计划没有实现，不定式要用完成式。eg.Hesaidhewastofinishtheworkinaweek,他说他打算一星期内完成这项工作。eg.Shesaidshewastotakeuptheposition,她说她要承担这个职务。注意：1.在含有条件状语从句和时间状语从句的复合句中，

从句的谓语常用一般过去时表示过去将来时。eg.Ididn'tknowwhenshewouldcome,butwhenshecameI

wouldletyouknow.eg.Theteachersaidthatitwouldbeverydifficulttomake

progressifIdidn'tworkhard.

2.was/were+doing表示过去将来时时，仅限于go,come,

leave,start,takeoff等趋向性（短语）动词。eg.

DavidwasleavingforShanghaiinafewdays.戴维几天以后

要去上海。

课本11页

8：Readthesentences.WritePbelowtheunderlinedpartsthatrefertothepastand

PFbelowtheunderlinedpartsthatrefertothefutureinthepast.

1：Yet,veryfewpeopleknewthatfutureavatarswouldhavesuchawidevarietyofforms

anduses.

PPF2：Whenpeoplestartedcreatingtheirownavatars,theydiscoveredthattheyweregoingto

havethepowertocreatenewidentitiesthatdidnotlookoractliketheirrealselvesatall.

PPPF3：

ManyInternetusersrealisedthattheiravatarswouldbeseenbymanypeople,not

justtheirfriends.PFP课本24页1.Theclasswereassignedgroupprojectsonthetopic"HowInformation

TechnologyAffectsOurLives".LiZhen'sgroupispresentingtheirresearch

onthedevelopmentofinformationtechnology.Usethecorrectformof

theverbsorphrasestocompletetheirpresentation.Informationtechnologyhasdevelopedinwaysthatpeoplewouldneverhaveimagined.

Inthe1980s,telephonesstartedtobecomepopularindailylife.Nobodyatthattime

imaginedthat20yearslaterpeople1__________________(have)phonesintheirpocketsand

2_____________________(use)themformanyfunctionsotherthanjustmakingcalls.wouldhavewoulduseIn1983,there

wereonly200computersconnectedtotheInternet.Atthattime,evenscientistsdidn't

realisethatonedaypeople3________________________(beableto)connectwithfamilyandfriends

anywherethroughvideochats.wouldbeableto

Andmostcertainly,peoplebackinthe1980s4_________________________.

(notunderst