八大時(shí)態(tài)語法課件-高三下學(xué)期英語一輪復(fù)習(xí)專項(xiàng)

英語之時(shí)態(tài)專項(xiàng)二需要掌握的八種時(shí)態(tài)：1.過去將來時(shí)2.過去完成進(jìn)行時(shí)3.將來完成進(jìn)行時(shí)4.將來完成時(shí)5.過去將來完成時(shí)6.

過去將來完成進(jìn)行時(shí)7.現(xiàn)在完成進(jìn)行時(shí)8.過去將來進(jìn)行時(shí)pastfuture過去將來時(shí)過去將來時(shí)表示從過去某一時(shí)間看將要發(fā)生的動(dòng)作或存在的狀態(tài)woulddosthwas/weregoingtodo過去將來時(shí)是“立足過去,著眼未來”的一種時(shí)態(tài),常用于賓語從句中。Summarizetheusage.（1）

Lastyear,hundredsofpeoplespentgoodmoneyonanexperiencethattheyknewwouldinclude

crowds,discomfortanddanger.Manywouldbecome

sick,duetotheextremecoldandlowairpressure,andafewwouldevenlose

theirlives.（para1）①woulddo表預(yù)測Summarizetheusage.（2）In2011,wordssimilartothoseofMallorywerespokenbyAmericanmountainclimberAlanArnette,whoclimbedQomolangmainthatyearandwasgoingtoclimbotherhighmountainsaroundtheworld.（para2）

②begoingtodo表計(jì)劃打算安排Summarizetheusage.（3）Withallthesupport,Ibelievedthatthisclasswasgoingtobeasuccess!②begoingtodo跡象表明會(huì)發(fā)生位移動(dòng)詞：go,come,leave,arrive,move,begin,start

③was/were（about）todo

(表示過去的計(jì)劃安排或注定要發(fā)生的事情)

Iwasjustabouttogotobed.

1.Shesaidthatshe_________(water)the

flowersthenextday,butshedidn't.2.Hetoldmethathe__________(leave)tomorrowwhenIcalledhim.8.Thebusdrivertoldeverybodytogetready

becausethebus_____________(start).10.Jameshasjustarrived,butIdidn’tknowhe___________(come)untilyesterday.wouldwaterwouldleavewasstartingwascomingwouldcome過去完成進(jìn)行時(shí)2.Ithadbeenrainingforthreedayswhenwearrivedatthevillage.過去完成進(jìn)行時(shí)1.Whenhecameto,hedidn’tknowhowlonghehadbeenlying

there.我們到達(dá)那個(gè)村莊時(shí)，已經(jīng)連續(xù)下了三天雨。他醒過來時(shí)，不知道自己在那里躺了多久。由“hadbeendoing”構(gòu)成，表示過去的過去一直持續(xù)的動(dòng)作。2.ShehadbeenswimmingforthethreehoursbeforeIcametoseeher.

過去完成進(jìn)行時(shí)與過去完成時(shí)的區(qū)別1.IhadstudiedFrenchbeforeIwenttocollege.

我來看她之前，她已經(jīng)游泳三個(gè)小時(shí)了。我在上大學(xué)以前，已經(jīng)學(xué)過法語。

過去完成時(shí)由“haddone”構(gòu)成，強(qiáng)調(diào)過去的過去完成的動(dòng)作,過去完成進(jìn)行時(shí)強(qiáng)調(diào)過去的過去一直持續(xù)的動(dòng)作。1.Hecamebackatseven.He

(wait)forherfortwohours.2.He

(justget)homewhenitbegantorain.3.I

(surf)onlinefortwohoursbythetimeshecametoseeme.填空hadbeenwaitinghadjustgothadbeensurfing到她來看我的時(shí)候，我已經(jīng)上網(wǎng)兩個(gè)小時(shí)了。他剛到家，就開始下雨了。他七點(diǎn)回來的。他已經(jīng)等她兩個(gè)小時(shí)了。

過去完成進(jìn)行時(shí)由“

”構(gòu)成，表示過去的過去“

”。過去完成時(shí)由“

”構(gòu)成，表示過去的過去

“

”。小結(jié)完成的動(dòng)作haddonehadbeendoing一直持續(xù)的動(dòng)作英語語法體系——將來完成進(jìn)行時(shí)（The

future

perfect

continuous）將來完成進(jìn)行時(shí)定義：表示動(dòng)作從某一時(shí)間開始一直延續(xù)到將來某一時(shí)間。是否繼續(xù)下去，要根據(jù)上下文而定。例如：到今年年底，我將在這個(gè)工廠工作10年了。（“工作”這個(gè)動(dòng)作從現(xiàn)在開始一直延續(xù)到今年年底）將來完成時(shí)的構(gòu)成shall

/

will

+

have

been

doing1）shall

+

have

done只用于第一人稱（I,

we）2）will

+

have

done用于所有人稱將來完成進(jìn)行時(shí)的肯定句主語+

shall

/

will

+

have

been

doingBythistimenextweek,

hewillhavebeenworkingforthiscompanyfor30years.到下星期此刻，他已經(jīng)為該公司工作30年了。將來完成進(jìn)行時(shí)的否定句主語+

shall

/

will

+

not

+

have

been

doingBythistimenextweek,

hewillnot

havebeenworkingforthiscompanyfor30years.到下星期此刻，他沒有為該公司工作30年。將來完成進(jìn)行時(shí)的一般疑問句shall

/

will

+

主語+

have

been

doingBythistimenextweek,willhehavebeenworkingforthiscompanyfor30years到下星期此刻，他為該公司工作30年了嗎？將來完成進(jìn)行時(shí)的用法1.表示動(dòng)作從某一時(shí)間開始一直延續(xù)到現(xiàn)在Bythetimethesunrises,Ishallhavebeensleepingforninehours.太陽升起來之前，我已經(jīng)睡了9個(gè)小時(shí)了。將來完成進(jìn)行時(shí)的用法2.表示一個(gè)已經(jīng)進(jìn)行的動(dòng)作到某一將來時(shí)刻仍在繼續(xù)進(jìn)行Hewillhavebeenworkingallday.他將整天忙于工作。將來完成進(jìn)行時(shí)的用法3.在下面這個(gè)句子中，will是情態(tài)助動(dòng)詞，有“大概”或“我想”的含義Itiswinter,itwillhavebeensnowinginthenorth.冬天到了，北方可能已經(jīng)開始下雪了。單項(xiàng)選擇1.Bythetimeyouvisitmeat2p.m.tomorrow,theseminar_____forawholeday,butIdoubtitwillbeover.A.willprogress B.willhaveprogressedC.hasbeenprogressing D.willhavebeenprogressing2.---IsSarahstillwritingherthesis---Yes.Bytheendoftheweek,she_____onitforthreewholemonths.A.willwork B.willhaveworkedC.hasbeenworking D.willhavebeenworkingD練一練D3.Bythetimethefamouspianistturnsthirty,he_____thepianoformorethantwentyyears.A.willhavebeenplaying B.willplayC.hasbeenplaying D.plays4.---WillyoutakeoveratthenextserviceareaIwantashortrest.---Sure.You_____foroverfourhoursbythen.A.havedriven B.havebeendrivingC.willbedriving D.willhavebeendriving5.He_____Englishforsixyearsbythetimehetakeshisexams.A.hadbeenstudying B.wasstudyingC.willhavebeenstudying D.hasbeenstudyingADC英語語法體系——將來完成時(shí)（The

future

perfect）將來完成時(shí)定義：表示在將來某一時(shí)間之前完成或一直持續(xù)的動(dòng)作，并往往對(duì)將來某一時(shí)間產(chǎn)生影響例如：我明天七點(diǎn)前能寫完作業(yè)。到下周五我就完成了。將來完成時(shí)的構(gòu)成shall

/

will

+

have

done1）shall

+

have

done只用于第一人稱（I,

we）2）will

+

have

done用于所有人稱將來完成時(shí)的肯定句主語+

shall

/

will

+

have

doneThey

will

have

built

the

skyscraper

by

January.

他們將在一月份之前建成這座摩天大樓。Tom

will

have

read

all

his

course

books

by

next

week.到下個(gè)星期，湯姆將讀完所有的課本。將來完成時(shí)的否定句主語+

shall

/

will

+

not

+

have

doneThey

will

not

have

built

the

skyscraper

by

January.

他們?cè)谝辉路葜安荒芙ǔ蛇@座摩天大樓。Tom

will

not

have

read

all

his

course

books

by

next

week.到下個(gè)星期，湯姆不能讀完所有的課本。will

not

=

won’t將來完成時(shí)的一般疑問句shall

/

will

+主語+

have

doneWilltheyhavebuilttheskyscraperbyJanuary他們?cè)谝辉路葜澳芙ǔ蛇@座摩天大樓嗎？WillTomhavereadallhiscoursebooksbynextweek到下個(gè)星期，湯姆能讀完所有的課本嗎？將來完成時(shí)的用法1.表示在將來某一時(shí)間之前已經(jīng)完成的動(dòng)作，并往往對(duì)將來某一時(shí)間產(chǎn)生影響經(jīng)常與“before+將來時(shí)間”或“by+將來時(shí)間”連用，也可以與before或by

the

time

(that)引導(dǎo)的現(xiàn)在時(shí)的從句連用。例如：I

will

have

read

all

this

books

by

the

end

of

this

term.到這個(gè)學(xué)期末，我將讀完所有的這些書。By

the

time

you

get

home,

I

will

have

cleaned

the

house

from

top

to

bottom.你到家之前，我將把房子徹底打掃一遍。將來完成時(shí)的用法2.

表示將來某一階段內(nèi)持續(xù)發(fā)生的動(dòng)作Hewillhavereorganizedthecompanyinabouthalfayear.他將用半年左右的時(shí)間重組這個(gè)公司。Wewillhavebeenmarried

25

yearsonJune

26th.到6月26日我們倆結(jié)婚就滿25年了。將來完成時(shí)的用法3.將來完成時(shí)常與表示完成意義的動(dòng)詞，如build（建立），complete（完成），finish（結(jié)束）等連用。在believe（相信），expect（期待），hope（希望），suppose（料想）等動(dòng)作之后，也常用將來完成時(shí)。例如：I

expect

you

will

have

changed

your

mind

by

tomorrow.我預(yù)料到明天你就會(huì)改變主意了。Workerswillhavecompleted

thenewroadsbytheendofthisyear.工人們將于今年年底前把新路鋪好。將來完成時(shí)的用法4.表示推測、設(shè)想，相當(dāng)于“must

have

done”結(jié)構(gòu)。翻譯為“應(yīng)該已經(jīng)……”、“很有可能已經(jīng)……”。例如：You

will

have

heard

of

this,

I

guess.我想你已經(jīng)聽說過這件事了。It’s

five

o’clock.

They

will

have

arrived

home

by

now.已經(jīng)五點(diǎn)鐘了，他們現(xiàn)在已經(jīng)已經(jīng)到家了。將來完成時(shí)的用法5.在時(shí)間從句和條件從句中，現(xiàn)在完成時(shí)可以代替將來完成時(shí)，表示將來某個(gè)時(shí)間已經(jīng)完成的動(dòng)作。例如：You’ll

get

to

like

the

subject

after

you

have

studied

it

for

some

tome.在學(xué)習(xí)這個(gè)學(xué)科一段時(shí)間之后，你就會(huì)喜歡它的。I’ll

go

and

see

the

exhibition

as

soon

as

I

have

finished

my

work.我一做完作業(yè)就去看展覽。如果不強(qiáng)調(diào)動(dòng)作的完成（且不會(huì)引起歧義），有時(shí)也可用一般現(xiàn)在時(shí)。例如：I

will

go

with

you

when

I

finish

my

work. 我完成工作后就同你去。單項(xiàng)選擇1.

I

want

to

pay

a

visit

to

my

parents;

I

_____

in

the

foreign

country

for

five

months

by

next

Sunday.A.

have

been

staying B.

will

have

stayedC.

have

stayed D.

will

be

staying2.

I’m

finally

going

back

to

my

motherland;

I

_____

in

the

foreign

country

for

four

years

by

next

months.A.

have

been

staying B.

will

have

stayedC.

have

stayed D.

will

be

stayingB練一練B3.

Hopefully

in

2030

we

will

no

longer

be

e-mailing

each

other,

for

we

_____

communication

tools

by

then.A.

have

developed B.

had

developedC.

will

have

developed D.

developed4.

By

the

time

you

get

back

from

Canada,

great

changes

_____

in

this

area.A.

will

take

place B.

are

to

take

placeC.

would

take

place D.

will

have

taken

place5.

By

next

October,

our

efforts

_____

of

great

benefit

to

the

populations

of

birds

on

the

islands.A.

will

be B.

have

been C.

are

going

to

be D.

will

have

beenCDDPastFuturePerfectTense過去將來完成時(shí)1、表示從過去某一時(shí)間來看將來某時(shí)會(huì)已經(jīng)完成的動(dòng)作。IthoughtSophiawouldhavetoldyousomething.IguessedthatMotherwouldhavemadesomesandwichesbythetimewegotback.過去將來完成時(shí)2.用于虛擬語氣中若表示與過去事實(shí)相反的虛擬語氣，此時(shí)條件從句的謂語用had+過去分詞，而主句謂語則通常用過去將來完成時(shí).當(dāng)然，主句謂語也可根據(jù)情況使用“should(could,might)+have+過去分詞”。IfI’dleftsooner,I‘dhavebeenontime.過去將來完成時(shí)3.“would+have+

過去分詞”的情態(tài)用法would后接完成式除用于構(gòu)成過去將來完成時(shí)外，它還有其情態(tài)動(dòng)詞用法的一面。Fewmenwouldhavebaredtheirsoultoawomanashehad.很少有男人能像他一樣對(duì)一個(gè)女人敞開心扉。過去將來完成時(shí)肯定句（wouldhavedone)IthoughtSophiawouldhavetoldyousomething.

過去將來完成時(shí)否定句（wouldnothavedone)IthoughtSophiawouldnothavetoldyousomething.

過去將來完成時(shí)疑問句（would提前)WouldSophiahavetoldyousomething？Yes,

she

would.No,shewouldn’t.

過去將來完成時(shí)結(jié)構(gòu)：wouldhavebeen+doneMotherwouldhavemadesomesandwichesbythetimewegotback.Somesandwicheswouldhavebeenmadebyourmotherbythetimewegotback.

過去將來完成時(shí)（被動(dòng)）

過去將來完成時(shí)（練習(xí)）They_________(finish)theworkyesterday,butitwasraininghard.Would/couldhavefinished句意：他們昨天本來可以完成工作的，但雨下太大了。根據(jù)yesterday可知，這件事發(fā)生在過去，但最終因?yàn)橛晗碌暮艽?，所以任?wù)并沒有完成，所以可以理解為在過去的時(shí)刻看將來完成的事；也可以理解為對(duì)過去的一種虛擬，即本能做但沒做。故最終答案為過去將來完成時(shí)。PastFuturePerfectProgressiveTense過去將來完成進(jìn)行時(shí)1、過去將來完成進(jìn)行時(shí)表動(dòng)作從過去某一時(shí)間開始一直延續(xù)到過去將來某一時(shí)間。Iknewbythattimehewouldhavebeenworkingtherefor30years.我知道到那時(shí)他他就在那兒工作滿30年了。過去將來完成進(jìn)行時(shí)2.過去將來完成進(jìn)行時(shí)往往用在間接引語中。若主句為過去時(shí)態(tài)，則用于賓語從句中的間接引語為過去將來完成進(jìn)行時(shí)。Shetoldmeshewould

havebeenteachinginthatuniversityfor20yearsbythatsummer.她告訴我到那年夏天她在那所大學(xué)教書就滿20年了。過去將來完成進(jìn)行時(shí)3.在特定的語境中，有時(shí)過去將來完成進(jìn)行時(shí)可用虛擬語氣。IfTom’sboyhadnotsatbesidehiminfront

Iwouldhavebeensittingthere.因?yàn)闇返男鹤印Ｒ菧返暮⒆記]坐在前邊,他的身旁的話，我就會(huì)坐在前面了。過去將來完成進(jìn)行時(shí)4.過去將來完成進(jìn)行時(shí),有時(shí)其中的would也可能是情態(tài)動(dòng)詞，具有情態(tài)意義，表示推測或猜想等?！癢hatinterestingjobhaveyoufound”SheaskedTom,heknewshewouldhavebeenthinkingaboutit.“你找到什么有趣的工作啦”她問湯姆。他知道海倫一定會(huì)一直想這件事的。過去將來完成進(jìn)行時(shí)肯定句（would/shouldhave

been+doing)Shetoldmeshewould

havebeenteaching

inthatuniversityfor20yearsbythatsummer.

過去將來完成進(jìn)行時(shí)否定句（would/shouldnothave

been+doing)Shetoldmeshewouldnothavebeenteachinginthatuniversityfor20yearsbythatsummer.

過去將來完成進(jìn)行時(shí)疑問句（would提前)一般很少用。Wouldshehavebeenteachinginthatuniversityfor20yearsbythatsummerYes,shewouldNo,shewouldn’t.

過去將來完成進(jìn)行時(shí)結(jié)構(gòu)：would/shouldhave

beenbeing+doneIwould

have

been

reading

books

bythetimeyoucame.Bookswouldhavebeenbeingreadbythetimeyoucame.

過去將來完成進(jìn)行時(shí)（被動(dòng)）

Presentperfectcontinuous現(xiàn)在完成進(jìn)行時(shí)1.定義2.結(jié)構(gòu)3.時(shí)間狀語4.現(xiàn)在完成時(shí)和現(xiàn)在完成進(jìn)行時(shí)的區(qū)別Presentperfectcontinuous現(xiàn)在完成進(jìn)行時(shí)

1.表示從過去某時(shí)間開始，某動(dòng)作一直延續(xù)到現(xiàn)在（說話時(shí)刻或最近剛剛結(jié)束的動(dòng)作）1.—Hi,Tracy,youlooktired.—I__________________(paint)thelivingroom.2.—I’msorrytohavekeptyouwaitingsolong.—That’snothing.Ihavebeenreadinganovel.2.表示從過去某時(shí)間開始，某動(dòng)作一直延續(xù)到現(xiàn)在（說話時(shí)刻），并可能繼續(xù)下去。1.I________________(wait)forherforanhour,butshehasn’tturnedupyet.2.He’sill.He’sbeenlyinginbedfortwodays.havebeenpointinghavebeenwaiting二、結(jié)構(gòu)肯定：have/hasbeendoing否定：haven’t/hasn’tbeendoing

eg：Ihavebeenwaitingforanhour,butshehasn'tcomeyet.

eg.Tomhasn’tbeenworkinghardsincethenewtermbegan.

三、時(shí)間狀語現(xiàn)在完成進(jìn)行時(shí)常與表示一段時(shí)間的狀語連用，如：allthetime一直,thisweek這周,allnight整晚,thesefewdays這些天,for+一段時(shí)間,since，recently最近

等。eg.Ihavebeenlivingheresince2020.eg.IhavebeenreadingthenovelfortwoweeksandIshouldbefinishedin3days.四、現(xiàn)在完成進(jìn)行時(shí)與現(xiàn)在完成時(shí)的區(qū)別1.現(xiàn)在完成時(shí)have/hasbeendoing的動(dòng)作不一定已經(jīng)完成(強(qiáng)調(diào)動(dòng)作的延續(xù))，而現(xiàn)在完成時(shí)have/hasdone表示動(dòng)作已經(jīng)完成（強(qiáng)調(diào)結(jié)果）。eg.Hehasbeenwritinganovel,whichwillbefinishednextmonth.eg.Hehaswrittenanovel,whichisbeingpreparedtocomeoutnow.四、現(xiàn)在完成進(jìn)行時(shí)與現(xiàn)在完成時(shí)的區(qū)別2.現(xiàn)在完成時(shí)have/hasbeendoing可以表示動(dòng)作在重復(fù)，而現(xiàn)在完成時(shí)have/hasdone不表示動(dòng)作重復(fù)。eg.Ihavebeenmeetingheratthelibraryrecently.Sheshouldbeprepareforherexamnextmonth.eg.Ihavemetherrecently，andshelooksthesameasfiveyearsago.四、現(xiàn)在完成進(jìn)行時(shí)與現(xiàn)在完成時(shí)的區(qū)別3.現(xiàn)在完成時(shí)have/hasbeendoing帶有感情色彩，可使表達(dá)顯得生動(dòng)，而現(xiàn)在完成時(shí)have/hasdone只表明一個(gè)事實(shí)、一種影響或結(jié)果，不帶感情色彩。eg.RecentlyLiHuahasbeenhelpinghismotherdohouseworkregularly.

(贊揚(yáng))eg.Ihavehelp

amaninneedandIfeeldelighted.（事實(shí)）四、現(xiàn)在完成進(jìn)行時(shí)與現(xiàn)在完成時(shí)的區(qū)別4.狀態(tài)動(dòng)詞和非延續(xù)性動(dòng)詞（瞬間動(dòng)詞）不用于現(xiàn)在完成時(shí)have/hasbeendoing，而用現(xiàn)在完成時(shí)have/hasdone。

eg.IhavebeenillrecentlysoIcouldn’tgotowork.eg.Shehasfinished

theprojectrelevanttoclimatechange.Exercise(1)Youshouldgotobed.You___________________(watch)TVfor5hours.(2)I_________________(write)letterssince6o'clock.WhencanIhavearest？(3)I_________________(look)forhimeverywhere.Wherecanhebehavebeenwatchinghavebeenwritinghavebeenlooking

PastFutureContinuousTense過去將來進(jìn)行時(shí)1.過去將來進(jìn)行時(shí)表示在過去將來某一時(shí)間正在發(fā)生的動(dòng)作，也可以表計(jì)劃中的事。它常和表示過去將來的時(shí)間狀語連用，但時(shí)間狀語亦可省略。IneverrealizedthatsomedayIwouldbelivinginChina.過去將來進(jìn)行時(shí)2、過去將來進(jìn)行時(shí)主要用于賓語從句中,尤其多用于間接引語中。Theysaidtheywouldbecoming.3.過去將來進(jìn)行時(shí)可以表示在過去某一時(shí)間之后即將進(jìn)行的動(dòng)作。Hesaidthathecouldnotcomebecausehewouldbehavingameeting.過去將來進(jìn)行時(shí)肯定句（wouldbe+doing)Theysaidtheywouldbecoming.

過去將來進(jìn)行時(shí)否定句（wouldnotbe+doing)Theysaidtheywouldnotbecoming.

過去將來進(jìn)行時(shí)疑問句（would提前)Wouldtheybecoming

過去將來進(jìn)行時(shí)結(jié)構(gòu)：wouldbebeingdone

過去將來進(jìn)行時(shí)（被動(dòng)）結(jié)構(gòu)：wouldbebeingdoneIwouldbecleaningmyhomewhenmyfathercameback.Myhomewouldbebeingcleanedwhenmyfathercameback.

過去將來進(jìn)行時(shí)（被動(dòng)）

過去將來進(jìn)行時(shí)（練習(xí)）Hewouldpaytherestashe________(leave）FranceWouldbeleaving句意：其余款項(xiàng)，他將在離開法國時(shí)付清。根據(jù)句子結(jié)構(gòu)，設(shè)空處應(yīng)該填寫謂語動(dòng)詞。根據(jù)would可知，設(shè)空處的動(dòng)作是發(fā)生在過去的，而且是在他將要離開的時(shí)候，此時(shí)leave的動(dòng)作還處于將來，且當(dāng)時(shí)正在進(jìn)行。故填wouldbeleaving。Tense時(shí)態(tài)

一般進(jìn)行完成完成進(jìn)行現(xiàn)在

do/does

am/is/aredoing

have/hasdone

have/hasbeendoing過去

did

was/weredoing

haddone

hadbeendoing將來

willdo

willbedoing

willhavedone

willhavebeendoing過去將來

woulddowouldbedoingwouldhavedonewouldhavebeendoing1.

George

promise

he

_____

all

the

domestic

chores

by

the

time

his

parents

are

back

this

evening.A.

will

finish B.

has

finished C.

will

be

finishing D.

will

have

finished2.

It

is

reported

that

by

the

end

of

this

month

the

output

of

cars

in

this

factory

_____

by

about

10%.A.

will

be

rising B.

has

been

rising C.

has

risen D.

will

have

risenDD3.

By

the

time

you

have

completed

the

essential

training,

you

_____

exposed

to

virtually

every

new

feature

of

the

course.A.

will

have

been B.

will

be C.

would

have

been D.

would

be

C2.到達(dá)目的地之前，他開車一直很快。1.你打前，我一直在看書。翻譯句子He

hadbeendrivingatgreatspeedbeforehearrivedatthedestination.I

hadbeenreadingbeforeyoucalledme.

2.Forthepasttwoyears,Gordon'sstudents____________________(study)waystokillbacteriainzerogravity,andtheythinkthey'reclosetoasolution(解決方案)．4.Inthelastfewyears,China______________(make)greatachievementsinenvironmentalprotection.8.Despitethepreviousroundsoftalks,noagreement_____________________(reach)sofarbythetwosides.havebeenstudyinghasmadehasbeenreached用單詞的適當(dāng)形式完成句子1.Ifthetrendcontinues,by2020,theworld__________(lose)two-thirdsofitsvertebratebiodiversity.3.Isitlikelythatscientists_______________(discover)acurecancerbytheyear20405.IhopeJack’shealth_______________(improve)greatlybythetimewegobacktoschoolthisSeptember.6.MytrainarrivesinShanghaiat10thismorning.TheplaneIwouldliketotakefromthere__________(leave)bythen.7.---IhearthatJasonisplanningtobuyacar.---Iknow.Bynextmonth,he____________(save)enoughforausedone.will

have

lost練一練will

have

discoveredwill

have

improvedwill

have

leftwill

have

saved6.Georgepromisehe_____allthedomesticchoresbythetimehisparentsarebackthisevening.A.willfinish B.hasfinished C.willbefinishing D.willhavefinished7.Itisreportedthatbytheendofthismonththeoutputofcarsinthisfactory_____byabout10%.A.willberising B.hasbeenrising C.hasrisen D.willhaverisen8.---CanIcallyoubackattwoo’clockthisafternoon---I’msorry,butthen_____toBeijing.HowaboutfiveA.beflying B.willhaveflown C.willfly D.willbeflownDDB9.

By

the

time

you

have

completed

the

essential

training,

you

_____

exposed

to

virtually

every

new

feature

of

the

course.A.

will

have

been B.

will

be C.

would

have

been D.

would

be

10.

By

the

time

the

course

ends,

we

_____

a

lot

about

each

other.A.

will

learn B.

have

learned C.

had

learned D.

will

have

learned11.

I

am

sorry

that

I

can

not

meet

you

at

the

airport.

I

_____

Tianjin

by

the

time

you

come

back

from

abroad.A.

am

leaving B.

will

leave C.

will

have

left D.

have

left12.

By

the

end

of

this

month,

we

surely

_____

a

satisfactory

solution

to

the

problem.A.

have

found B.

will

be

finding C.

will

have

found D.

are

findingCDCC13.BythetimeJanegetshomo,heraunt_____forLindontoattendameeting.A.willleave B.leaves C.willhaveleft D.leave14.---MayIspeaktothemanageratfiveo’clockthisafternoon---Sorry,buthe_____toaconferencebythen.A.hasgone B.wouldhavegone C.willhavegone D.hadgone15.Sheahsbeenstudyinghereforfiveyearsandbythetimeofnextsummershe_____.A.willgraduate B.willbegraduating C.willbegraduated D.willhavegraduated16.Shenshegraduatesfromthecollegethissummer,she_____hereforfouryears.A.willstudy B.willhavestudied C.istostudy D.hasstudiedCCDB17.

It

is

reported

that

by

the

end

of

this

year,

the

import

of

fruit

and

seafood

_____

by

about

10%

because

of

the

pandemic

of

coronavirus.A.

has

decreased B.

will

have

decreased C.

will

be

decreased D.

has

been

decreasing18.

By

the

time

you

get

this

letter,

I

_____

the

country.A.

will

leave B.

will

have

left C.

would

leave D.

am

leaving19.

By

the

time

he

comes

back

from

London,

I

_____

the

project.A.

finish B.

have

finished C.

will

finish D.

will

have

finished20.

When

you

have

finished

the

report,

believe

or

not,

I

_____

for

about

3

hours.A.

will

be

waiting B.

waited C.

will

have

waited D.

have

waitedBBDC6.

You

needn’t

hurry

her.

She

_____________

(finish)

it

by

the

time

you

are

ready.7.

They

read

this

letter

to

him

on

the

air:

“Hello,

my

name

is

Brenda

Schemitz,

when

you

receive

this

letter,

I

__________

(lose)

my

battle

to

cancer.”8.

We

are

late.

I

expected

the

film

______________

(start)

by

the

time

we

get

to

the

cinema.9.

By

the

time

he

leaves

university,

he

__________

(get)

work

experience

so

long

as

he

takes

a

part-time

job.10.

---

Tommy

is

planning

to

buy

a

car.

---

I

know.

By

next

month,

he

____________

(save)

enough

for

a

used

one.11.

By

the

time

you

arrive

in

London,

we

____________

(stay)

in

Europe

for

two

weeks.12.

By

the

time

he

moves

to

Beijing

next

week,

I

_______________

(return)

his

books.13.

China

_______________

(reduce)

the

carbon

dioxide

emissions

a

lot

by

2030,

the

vice

premier

told

the

media.14.

We

will

_______________

(marry)

for

two

years

on

Christmas.will

have

finishedwill

have

lostwill

have

startedwill

have

gotwill

have

savedwill

have

stayedwill

have

returnedwill

have

reducedhave

been

married(4)三年以來，我們一直在研究這個(gè)地區(qū)的各種物種。

________________________________

sincethreeyearsago.(5)近來他老是說厭倦了自己的工作。______________________heistiredofhisworkrecently.(6)在過去的幾個(gè)月，西南地區(qū)的人們一直遭受嚴(yán)重旱災(zāi)的折磨。Peopleinthesouthwesternareas________________________________________inthepastfewmonths.WehavebeenstudyingvariousspeciesintheareaHehasbeensayinghavebeensufferingfrom

seriousdrought

Marty___________________(work)reallyhard