外研版 (2019)选择性必修 第二册Unit 2 Improving yourself图片ppt课件

这是一份外研版 (2019)选择性必修 第二册Unit 2 Improving yourself图片ppt课件，共29页。
1. Students culd learn sme wrds and phrases.2. Students culd undestand the usage f “Past perfect passive”.3. Students culd write sme a passage by using “Past perfect passive”.
Learning Aims:
What is yur understanding f this passage？Share yu ideas with thers
Past perfect passive
Befre reading, please try t write sme sentences by using this grammar.
Brainstrming:When learning this grammar, what cme t yur mind?
1Past perfect
Try t write yur pinins in yur ntebk!
Answer the questins.
a At the start f the detx, ver 100 students had been persuaded t stp using scial media, in ANY frm, fr seven days.b At the start f the detx, peple had persuaded ver 100 students t stp using scial media, in ANY frm, fr seven days.
Were the students in sentence (a) persuaded befre the detx started, r afterwards?
befre the detx started.
What is the difference between sentences (a) and (b)?
The passive vice is used in sentence (a), while the active vice is used in sentence (b).
Why des the authr chse t use a passive frm instead f an active frm?
The authr desn’t knw wh had persuaded students t stp using scial media.
What cnclusins can yu draw frm the facts?
tw hurs a day n scial media: a ttal f 730 hurs each year.
• On average, Chinese Internet users each spend tw hurs a day n scial media: a ttal f 730 hurs each year. • The average age f scial media users in China in 2017 was 33.1 years ld, as against 32.4 in 2016 and 31.2 in 2015.• The tp fur negative aspects f scial media as ranked by Chinese users are: reduced time fr reading printed bks, prer eyesight, privacy and infrmatin security cncerns, and reduced sleep time.
过去完成时由“ had + 过去分词”构成，表示在过去某一时刻或某一动作之前发生的动作或状态，句中常用by，befre，until，when等词引导时间状语。We had built five new buildings by the end f last year.
过去完成时的被动语态有以下三种形式：(1)肯定结构：主语+ had been dne +其他成分(2)否定结构：主语+ had nt been dne +其他成分(3)疑问句结构：had +主语+ been dne +其他成分;疑问词+ had +主语+ been dne +其他成分
过去完成时的被动语态常用于以下情况：(1)表示过去某一时间以前已经完成的动作，常与by, befre等引导的时间状语连用。By the time he gt t the schl, the first perid had been finished.The classrm hadn't been cleaned befre the teacher came.Hw many buildings had been destryed when the hurricane ended?Had the new plan been discussed befre the meeting?
(2)在 tld, said, knew, heard, thught等动词之后的宾语从句中，若表示过去某一被动动作时，用过去完成时。The said the prductin csts had been reduced.The by was reminded that his hmewrk had nt been handed in.The media reprted mre than 1,000 peple had been killed in the earthquake.
(3)根据语意可以判断出动作先后的被动语态，用过去完成时。As the assignment had been dne, he went n t search the Internet.He did what he had been tld t另：当从句由 after，befre，when或 as sn as引导时，主句和从句都可以用一般过去时。When he arrived, he called her.They lcked the dr befre they left.
Befre I turned ver a new leaf, I had always been a very lazy student. I was careless abut handing in my hmewrk, and nne f my assignment deadlines 1____________ (meet). Indeed, I wuld deliberately “lse” my hmewrk in my incredibly messy rm, s that I culd put ff 2____________ (d) it!
had been met
Take ntes quickly！
重点词汇new leaf 新叶lazy 懒惰的 careless abut 粗心大意 ; 对…粗心的deadlines 最后期限 ; 截止日期 ; deliberately 故意 ; 蓄意 ;incredibly 难以置信地 ; messy 肮脏的 ; 凌乱的 put ff 推迟，拖延 ;
My parents sn wrked ut this trick, thugh, and ne day I came hme t find that my rm 3____________ (clean), and my hmewrk 4____________ (put) right in the centre f a sptlessly clean desk! A present 5____________ (leave) n the desk, t (I think Mum did that): a bk called The Art f Prcrastinatin.
had been cleaned
had been put
had been left
重点词汇wrked ut 被算出trick 戏法 ; 把戏 ; 诡计 ; 花招 ; 骗局 ; ne day 一天；一日clean 清洁的 ; 干净的 ;hmewrk 作业 ; 家庭作业 ; 准备工作right in 【体】好球centre 中心点 ; Prcrastinatin 拖延 ;
The authr, Jhn Perry, said that prcrastinatin was abut 6____________ (avid) the hardest and mst imprtant tasks. S, 7____________ (make) sure yu d yur hmewrk, put it secnd r third n yur t-d list, nt at the tp. Then put ne r tw really hard things yu dn’t want t d at the tp f the list. Yu will prcrastinate t avid the hard stuff – by ding yur hmewrk!
重点词汇prcrastinatin 拖延hardest 努力地 ; t-d list 列表 ; 任务清单 ;ne r tw 一两个 ; 几个want t d 想做某事 ; 想要做某事 ; 想要作某事at the tp f the list 在列表的顶部 ; 列表之顶部prcrastinate 拖延 ; 耽搁hard stuff 硬币，现金 ; 烈性酒
Think f mre inapprpriate behaviur and talk abut what is the right thing.
negative effects
turn n the light all nights
thrw litter anywhere
Try t think abut thers
Talk with thers.
Write yur ideas.