高教版中职英语（基础模块第2册）Unit7《Somuchtodobeforewetravel》课件

时间状语从句掌握状语从句的关键准确掌握每一个连词的含义。注意主句和从句的时态呼应。状语从句分类表示时间表示地点表示原因表示结果表示目的表示条件表示让步表示比较时间状语从句？

用表示时间的连词连接一个句子作状语，这样的主从复合句就是时间状语从句。

连接词：when,while,as,before,after,until,not…until,since,the

moment,each

(every,next,the

first)time

…连接词类别作用asas

从句中动词是延续性时，侧重表示主从句动作同时发生，意为“一边…一边…”when强调动作的先后性，从句动词可以是延续性动词也可以是非延续性动词。while强调动作的持续性及同时性，从句常用延续性动词。1.连接词when,while,as

的用法区别用while,when填空：he

was

four①

Mozart

started

writing

musicyears

old.②

He

visited

a

lot

ofplaces③Shealwayslistendtolightmusic

she

doessome

cleaning.whenwhilhee

was

traveling.as1.

when从句的主语与主句的主语相同，谓语动词是be动词时，从句主语和be可以省略e.g.When

(she

was)

walking

along

the

street,

she

met

her

classteacher.注意When的特殊用法注意When

的特殊用法2.when可做并列连词用，表示“就在那时”相当于

and

at

this/that

time。We

were

having

a

class

when

someone

brokein.(突然有人闯了进来).We

were

about

toset

off

when

it

began

to

rain.

(这时开始下雨了)while

的特殊用法while可用于对比，意为“然而”e.g.I

prefer

black

tea,

while

he

likes

coffee.PRACTICEA.

when B.

while C.

until D.before2.He

was

about

to

tell

me

thesecretsomeone

patted

（拍）him

on

theshoulder（肩膀）.A.

asC.whileB.

untilD.

when1.Wewereswimminginthelake

A

suddenly

the

storm

started.

D2).until/till表示“直到…为止”，在句首或强调句型中，一般用until;在主句后，till

和until

均可。He

did

not

go

to

beduntil

he

finished

hiswork.（

直到…才…）=Not

until

he

finished

his

work

did

he

go

tobed.注意: not

…until

在句首时主句要倒装3).before“还未…就…”,“不到…就…”“…才…”；We

hadn’t

run

a

mile

before

tired.(我们还没跑到一里就累了）Do

it

now

before

you

forget.I

have

been

teaching

here

since

I

graduated.4).

after“在…之后”He

left

the

classroom

after

he

had

finishedhis

homework

the

otherday.前几天他做完作业之后离开了教室。He

called

me

after

he

had

finished

hiswork.工作完了之后他给我打了个电话。5).as

soon

as “一…就…”I’ll

tell

him

about

it

as

soon

as

he

comesback.他一回来我就告诉他这件事。As

soon

as

he

heard

the

news,

he

jumpedwith

joy.他一听到消息，就高兴地跳了起来。6).since “自从...”，主句常用现在完成时，从句常用一般过去时We

have

been

friends

ever

since

we

met

atschool.我们自从在学校认识至今一直是朋友。常用句型“It

is/has

been+时间段+since从句”译为“自从…多长时间了”It

is

three

years

since

she

joined

the

army.时间状语从句其它引导词：the

moment,the

minute,every

time,each

time,bythe

time,the

day等，也可引导一个时间状语从句。The

day

he

returned

home,

his

father

was

alreadydead.Every

time

I

caught

a

cold

, I

had

pain

in

myhead.The

moment

I

saw

him,

I

recognizedhim.PractisingI’llwritetoyou

I

getthere.A.

while B.

before C.

as

soon

as D.

byHehaslivedinthecity

he

came

back

fromAmerica.A.

when B.

before C.

since D.

afterWewon’tleavehere

our

teacher

comesback.A.

until B.

since C.

after D.

as

soon

asI

had

to

finish

the

picture

my

mother

cameback.A.

until B.

before C.

after D.whileJohnfellasleep

he

was

listening

to

themusic.A.

after B.

before C.

while D.

as

soon

asPractisingIt

seemed

only

seconds

the

boy

finished

washing

his

face.A.

when

B.

before

C.

after

D.

even

ifWe

were

told

that

we

should

follow

the

main

road

we

reached

the

central

railwaystation.A.whenever B.until C.

while D.

whereverI

recognized

you

I

saw

you

at

the

airport.A.

the

moment

B.

while

C.

after

D.

onceHe

was

about

to

go

to

bed

the

doorbell

rang.A.

while

B.

as

C.

before

D.

when

I

listen

to

your

advice,

I

get

into

trouble.A.

Every

time

B.

When

C.

While

D.

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