Unit15Itsamysterytome！（课件）-新概念英语青少版2A

Unit15It’samysterytome！1.Whatletterisananimal?哪个字母是一个动物？[答案]B（Bee）2.Whatletterstandsfortheocean?哪个字母代表海洋？[答案]C（sea)3.Whatletterisaquestion?哪个字母是一个问题？[答案]Y（why）4.Whatletterisyoureye?哪个字母是你的眼睛？[答案]I（eye）Review一般过去时（实义动词）1.定义2.标志词3.结构4.动词过去式变化规则一般过去时1.定义：表示过去某个时间里发生的动作或状态。2.标志词yesterday系列：yesterdaymorning

last系列：lastmonth

in+过去年份系列：in2000

一段时间+ago系列：anhourago

just

now(刚才)this系列等3.结构①肯定：主语+动词过去式+其他

②否定：主语+didn't

+动词原形+其他规则：一找实义动词，二过去式还原，

三加didn’t

③一般疑问句结构：Did

+主语+动词原形+其他规则：一加Did，二过去式还原，三变肯定回答：

Yes,

sb

did.

否定回答：No,

sb

didn't.动词变过去式规则：（直去变双）（1）一般情况下，动词词尾加

ed

，（2）以不发音的

e

结尾动词，动词词尾加

d，（3）以辅音字母

+

y结尾的动词，把y变为i

再ed，：

（4）以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加

ed，

1.Iplayedbasketballyesterday.2.ShevisitedtheGreatWalllastmonth.3.Theyplayedsoccerthismorning.4.Myfatherstudiedhere20yearsago.5.Lindapaintedpictureslastnight.6.IwatchedTVyesterdaymorning.7.Karenjumpedinthecarjustnow.8.Theyclimbedthemountainslastyear.Newwordsinstead[ɪnˈsted]作为替代holiday[ˈhɒlədeɪ]假日instead作为替代game游戏，运动nap小睡adayout外出一天holiday假日grammar

一般过去时--特殊疑问句1.Ididmyhomeworkyesterday.Whatdidyoudoyesterday?2.Tomcleanedthedesklastnight.Whocleanedthedesklastnight?3.Ivisitedmyfriendslastmonth.Whendidyouvisityourfriends?4.Williamhadabaththismorningbecausehedidn’twanttotakeashower.WhydidWilliamhaveabaththismorning?5.Sheplayedbaskertballinthepark.Wheredidsheplaybasketball?（1）对时间提问：

When+一般疑问句?（2）对主语提问：Who直接做主语?（3）对做某事事提问：What主语后带do？（4）对原因提问：Why

+一般疑问句?（5）对地点提问：Where后无go?1.Iplayedbasketballyesterday.2.ShevisitedtheGreatWalllastmonth.3.Theyplayedsoccerthismorning.4.Myfatherstudiedhere20yearsago.5.Lindapaintedpictureslastnight.6.IwatchedTV

athome

yesterdaymorning.7.Karen

jumpedinthecarjustnow.8.Theyclimbedthemountainslastyear.words&Passagemystery[ˈmɪstri]

谜，难以理解的事物deputy[ˈdepjuti]代理人serious[ˈsɪəriəs]

重要的business[ˈbɪznɪs]

事情attitude[ˈætɪtjuːd]

态度civilised['sɪvəlaɪzd]

舒适的agree[əˈɡriː]with同意efficient[ɪˈfɪʃnt]

效率高的mystery[ˈmɪstri]tripdeputy

[ˈdepjuti]haveababyoffeachhappen谜，难以理解的事物旅行副手生小孩停止每一发生serious[ˈsɪəriəs]

attitude[ˈætɪtjuːd]civilised['sɪvəlaɪzd]agreewithefficient[ɪˈfɪʃnt]Howlong...?understand重要的

态度舒适的同意效率高的多长时间理解，明白Jack:Theyhaveninemonthsoffworkeachtime!Daisy:Well,ithappens.That’slife.Jack:

True.Andthenthere’sthefood.IhadlunchwithMarcel.Ididn’twantathree-hourlunch,butlunchisaserious

businessinParis.每次Daisy:Yes,itis.IliketheFrenchattitudetofood.It’sverycivilised.Jack:Iagreewithyou,Dasiy.They’renicepeople.They’realsoveryefficient.Buthowdotheydoit?Ho