Unit4DiscoverUsefulStructuresDiscoveryandSummaryIhavebeenlearningEnglishsinceIwas8yearsoldandIstillloveit.我從八歲起就開始學(xué)英語了，現(xiàn)在仍然很愛它。你一直在進步，我真為你感到驕傲。DiscoveryandSummaryYouhavebeenmakingprogressandIamproudofyou!小朋友一直努力在集中注意力，但還是情不自禁睡著了。DiscoveryandSummaryThelittleboyhasbeenstrugglingtobeattentive,butcan’thelpfallingasleep.Ithasbeenrainingthesedays.這些天一直在下雨。DiscoveryandSummary2.I

havebeenlearning

EnglishsinceIwas8yearsoldandIstillloveit.3.You

havebeenmaking

progressandIamproudofyou!4.Thelittleboy

hasbeenstruggling

tobeattentive,butcan’thelpfallingasleep.1.It

hasbeenraining

thesedays.DiscoveryandSummary現(xiàn)在完成進行時表示動作從過去某一時間開始，一直持續(xù)到現(xiàn)在，或者剛剛終止，或者可能仍然要繼續(xù)下去。I.Definition

oftheperfectcontinuoustense

構(gòu)成:have/has+been+doing2)肯定、否定及疑問形式：肯定句:Ihavebeenworking.Shehasbeenworking.否定句:Ihavenotbeenworking.Shehasnotbeenworking.疑問句:HaveIbeenworking?

Hasshebeenworking?

II.StructureoftheperfectcontinuoustenseIhavebeenlearningEnglishsinceIwas8yearsoldandIstillloveit.learn

8yearsagofuturenow

1.

過去動作持續(xù)到現(xiàn)在，還將持續(xù)下去.III.Usage【1】

oftheperfectcontinuoustenselearnlearn1.---IamsorryIhavekeptyouwaitingsolong.---Itisallright.Ihavebeenreading

thenewspapers.2.Wehavebeenwaitingforyouforhalfanhour.

2.

表示說話之前剛剛結(jié)束的動作，并且動作不再繼續(xù).III.Usage【2】

oftheperfectcontinuoustensepastfutureonehouragonowwaitingstartedstoparrive3.

表示動作從過去到現(xiàn)在的時間內(nèi)重復(fù)發(fā)生但有可能間斷。1.It

hasbeenraining

thesedays.2.We

havebeenpracticing

KungFurecently.III.Usage【3】

oftheperfectcontinuoustenseHeze2.Whyareyoulateagain?Ihavebeenwaiting

foryoufortwohours.

4.

表示某種強烈的感情色彩,如：贊賞、批評、憤怒等。1.

You

havebeenmaking

progressandIamproudofyou!III.Usage【4】

oftheperfectcontinuoustense1.Thegirlhasagreatinterestinsportand___badmintonclassestwiceaweekoverthelastthreeyears.

A.tookB.istaking

C.takesD.hasbeentaking2.Inordertofindthemissingchild,villagers__alltheycanoverthepastfive

hours.A.did

B.do

C.haddone

D.havebeendoingPracticeTheboy__________________(eat)sincefiveminutesago.

hasbeeneating(1)Theboystartedeatingfiveminutesago.(2)Heisstilleatingnow.Practice完成P41②現(xiàn)在完成時和現(xiàn)在完成進行時的比較1.LiJia__________(read)abookaboutStonehenge.(Shefinishedreadingthebook.)2.LiJia______________(read)abookaboutStonehenge.(Sheisstillreadingthebook.)hasread

hasbeenreadingIV.Contrast

【1】(比較1)

pastfuturenowreaddohaveread

pastfuturenowreaddohavebeenreadingdo現(xiàn)在完成時現(xiàn)在完成進行時剛結(jié)束動作仍在繼續(xù)IV.Contrast

【1】(比較1)A.—_______________haveyouvisitedEgyptthismonth?—IhavevisitedEgypttwicethismonth.(過去往返埃及和居住地,但現(xiàn)在已回來)

B.—__________haveyoubeentouringEgypt?—IhavebeentouringEgyptfortwomonth.(過去一段時間一直待在埃及,沒有離開過)HowmanytimesHowlongSummary2現(xiàn)在完成時表示反復(fù)發(fā)生的動作，提問時用howmanytimes。而現(xiàn)在完成進行時，表示持續(xù)的、不間斷的動作，提問時用howlong。IV.Contrast

【2】(比較2)Summary3現(xiàn)在完成進行時比較生動，有時含有明顯的感情色彩，而現(xiàn)在完成時往往只說明一個事實，一種影響或結(jié)果。Ihavebeendreamingtobeanastronaut.

Ihavedreamttobeanastronaut.IV.Contrast

【3】(比較3)Summary4

never,yet,already,ever等可用于現(xiàn)在完成時，但不可用于現(xiàn)在完成進行時。Ihave

nevervisitedParis.Ihave

never

beenvisitingParis.×√Hehas

already

gonetoParis.Hehas

already

beengoing

toParis.√×IV.Contrast

【4】(比較4)1.[北京卷]---Excuseme,whichmovieareyouwaitingfor?---ThenewStarWars.We_____hereformorethantwohours.A.waitedB.waitC.wouldbewaitingD.havebeenwaiting2.[北京卷]China’shigh-speedrailways_____________(grow)from9,000to25,000kilometersinthepastfewyears.DPracticehavegrown3.[福建卷]

---WhereisPeter?Ican’tfindhimanywhere.---Hewenttothelibraryafterbreakfastand______________(write)hisessaythereeversince.4.[江西卷]

---Tony,whyareyoureyesred?---I________________(cut)uppeppersforthelastfiveminutes.hasbeenwritinghavebeencuttingPractice5.[江蘇卷]Dashan,who____crosstalk,theChinesecomedictradition,fordecades,wantstomixitupwiththeWesternstand-uptradition.A.willbel