Unit 4 Information Technology Lesson 1 課件-高中英語(yǔ)北師大版（2019）必修第二冊(cè)

UNIT4InformationTechnologyLesson1Avatars語(yǔ)法：過(guò)去將來(lái)時(shí)過(guò)去將來(lái)時(shí)(定義）：過(guò)去將來(lái)時(shí)表示從過(guò)去某時(shí)看將要發(fā)生的動(dòng)作或存在的狀態(tài)。eg.Ithoughthewouldn'tattendthesocialevening,buttomysurprise,hecame.我原以為他不會(huì)參加這個(gè)聯(lián)歡晚會(huì)，但是令我驚訝的是，他來(lái)了。eg.HeaskedmeifIshouldbeintheofficeintheafternoon.他問(wèn)我下午是否在辦公室。過(guò)去將來(lái)時(shí)的表示方法

(1)would/should+動(dòng)詞原形，would用于所有人稱，should只用

于第一人稱。

eg.Shetoldusthatshewouldnotgowithus,

itrained.她告訴我

們，如果下雨的話她就不和我們一起去了。

特別提醒:"would+動(dòng)詞原形"也可表示過(guò)去經(jīng)常性、習(xí)慣性的動(dòng)作。eg.

WhenIwassmall,mumwouldreadmestoriesatnight.

在我小的時(shí)候，媽媽常在晚上給我講故事。(2)was/weregoingtodo表示過(guò)去打算/計(jì)劃做某事或客觀跡象表明要發(fā)生的事。eg.IwasgoingtoseeMrBrownthenextday,buttheappointmentwascancelled.我本打算第二天去看布朗先生的，但預(yù)約被取消了。(3)was/wereabouttodo表示過(guò)去正要/即將做某事eg.WhenIgottheretheywereabouttoleave.我到那兒的時(shí)候他們正要離開(kāi)。特別提醒:"Sb.beabouttodo.…when."句型表示"某人正要做某事,突然……"。eg.Iwasabouttoleavewhensomeoneknockedatthedoor.我正要離開(kāi)，突然有人敲門。(4)was/weretodo表示過(guò)去計(jì)劃或安排將要做某事，如果計(jì)劃沒(méi)有實(shí)現(xiàn)，不定式要用完成式。eg.Hesaidhewastofinishtheworkinaweek,他說(shuō)他打算一星期內(nèi)完成這項(xiàng)工作。eg.Shesaidshewastotakeuptheposition,她說(shuō)她要承擔(dān)這個(gè)職務(wù)。注意：1.在含有條件狀語(yǔ)從句和時(shí)間狀語(yǔ)從句的復(fù)合句中，

從句的謂語(yǔ)常用一般過(guò)去時(shí)表示過(guò)去將來(lái)時(shí)。eg.Ididn'tknowwhenshewouldcome,butwhenshecameI

wouldletyouknow.eg.Theteachersaidthatitwouldbeverydifficulttomake

progressifIdidn'tworkhard.

2.was/were+doing表示過(guò)去將來(lái)時(shí)時(shí)，僅限于go,come,

leave,start,takeoff等趨向性（短語(yǔ)）動(dòng)詞。eg.

DavidwasleavingforShanghaiinafewdays.戴維幾天以后

要去上海。

課本11頁(yè)

8：Readthesentences.WritePbelowtheunderlinedpartsthatrefertothepastand

PFbelowtheunderlinedpartsthatrefertothefutureinthepast.

1：Yet,veryfewpeopleknewthatfutureavatarswouldhavesuchawidevarietyofforms

anduses.

PPF2：Whenpeoplestartedcreatingtheirownavatars,theydiscoveredthattheyweregoingto

havethepowertocreatenewidentitiesthatdidnotlookoractliketheirrealselvesatall.

PPPF3：

ManyInternetusersrealisedthattheiravatarswouldbeseenbymanypeople,not

justtheirfriends.PFP課本24頁(yè)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