高中英语人教版 (2019)选择性必修 第三册Unit 4 Adversity and Course课前预习课件ppt

这是一份高中英语人教版 (2019)选择性必修 第三册Unit 4 Adversity and Course课前预习课件ppt，共19页。PPT课件主要包含了目录页，Summarize，Present，Past，Future，Have a try，gave，had given，has risen，have used等内容，欢迎下载使用。
The structure f the present perfect cntinuus tense
Three usages f the present perfect cntinuus tense
The cmparisn between the present perfect cntinuus tense and the past perfect cntinuus tense
Instant exercises
The present perfect cntinuus tense现在完成进行时
1. This is the adventure that I have been dreaming f.2. We are nw camped n the rice and we have been managing t survive, but spring is cming, and the ice will sn begin t melt.3. We have been struggling fr days, but things n Elephant Island are ging frm bad t wrse.
Lead-in: Observe and discver
The Present Perfect Cntinuus Tense基本结构：“have / has been + 现在分词” 基本含义：表示动作从过去某一时间开始一直持续到现在，可能刚刚停止，也可能仍在继续。
1. The artist has been painting the picture fr 3 hurs, but he has nt finished it yet.2. Yu have been designing slar racing cars fr a lng time.3. He ________________ (study) aliens (外星人) since 2010.
The usage f the tense (1)
（1）现在完成进行时态表示动作还未结束，还要继续持续下去。
has been studying
试比较：1. The artist has painted the picture.2. I have designed five r six different cars s far.
现在完成时态强调动作已经完成。
1. All these days he has been writing articles t ur magazine.2. He has been prmising t help yu. Hasn’t he dne it?3. I _______________ (take) part in races fr abut fur years.4. Jack _______________ (phne) Jane every night fr the last week.
（2）表示动作并不是一直不停地进行，而是在断断续续地重复。
have been taking
has been phning
The usage f the tense (2)
1. Tm has always been wrking hard.2. Time has been flying s quickly!3. What have yu been ding t my dictinary?
（3）带有感情色彩，使语言表达更加生动。
What kind f emtin des the writer express in these sentences?
The usage f the tense (3)
1. Tm had been texting his pen pal fr fur years. 2. Tm has been texting his pen pal fr fur years . 1. She had been suffering frm a bad cld when she tk the exam. 2. She has been suffering frm a bad cld since she tk the exam.
present perfect cntinuus tense vs past perfect cntinuus tense
Try t cmpare the fllwing tw sets f sentences.
过去完成进行时表示过去一段时间内一直在做的事情，现在已经终止了；现在完成进行时表示过去某个时段一直做着一件事，并到现在还在继续。
1. I _______________ (lk) fr it fr days befre I fund it.2. Yu ________________ (say) that fr three years.3. Tm _____ (give) a talk t a large grup f peple, the same talk I _________ (give) t half a dzen ther grups.4. By this time next week, I _______________ (wrk) fr this cmpany fr 6 years.5. — What is the price f petrl these days? — Oh, it ________ (rise) sharply since last mnth.
had been lking
have been saying
will have wrked
Practice makes perfect.
1. Peple ________________ (pur) int stadiums since the days f ancient Greece. (2021 全国乙卷)2. Fr the biggest stadiums in the wrld, we _________(use) data supplied by the Wrld Atlas list s far, which ______ (rank) them by their stated permanent capacity, as well as updated infrmatin frm fficial stadium websites. (2021 全国乙卷)3. Yu knw, I _________________ (lk) fr a jb fr three mnths, and this is my first frmal interview.
have been puring
have been lking
4. Marty ________________(wrk) hard n his bk and thinks he ________________ (finish) it by Friday.5. — Hi, Tm, yu lk tired. — I am tired. I ________________ (paint) the living rm all day.6. I asked where they ______________ (stay) all thse days.
have been painting
has been wrking
will have finished
had been staying
Fd supplies in the fld-stricken area ____________ (run) ut. We must act immediately befre there’s nne left. Up t nw, the prgram __________ (save) thusands f children wh wuld therwise have died. It ___________ (reprt) that many a new huse _____________ (rebuild) at present in the disaster area. Plice ____________ (search) fr a wman nw wh is reprted t ________________ (miss) since the fld ____ (hit) the area last Friday.
are running
is being rebuilt
are searching
have been missing
Last mnth, the Japanese gvernment _________ (express) their thanks fr the aid they ____________ (receive) frm China. The cnstructin f the tw new railway lines __________________ (cmplete) by nw. The prime minister hpes that the peple will be better ff when he quits than when he _______ (start). We hpe peple living in disaster areas ___________ (return) t their nrmal life as sn as pssible.
had received
has been cmpleted
will return