when和while区别及练习

when和while区别及练习when和while区别及练习when和while区别及练习xxx公司when和while区别及练习文件编号：文件日期：修订次数：第1.0次更改批准审核制定方案设计，管理制度讲解三例句：1.Thegirlsaredancingwhiletheboysaresinging.2.Kangkang’smotheriscookingwhenhegetshome.3.When/WhileKangkang’smotheriscooking,hegetshome.一、用when或者while填空

Margo

was

talking

on

the

phone,her

sister

walked

in.

we

visited

the

school,the

children

were

playing

games.

Sarah

was

at

the

barber’s,I

was

going

to

class.

I

saw

Carlos,he

was

wearing

a

green

shirt.

Allen

was

cleaning

his

room,the

phone

rang.

Rita

bought

her

new

dog;it

was

wearing

a

little

coat.

7.He

was

driving

along

________

suddenly

a

woman

appeared.

8.

_____

Jake

was

waiting

at

the

door,

an

old

woman

called

to

him.

9.He

was

reading

a

book

______suddenly

the

telephone

rang.

10.

______

it

began

to

rain,

they

were

playing

chess.

11.

She

saw

a

taxi

coming

______

the

woman

was

waiting

under

the

streetlight.

12.

The

alien

was

in

the

museum,I

called

the

police.

13.The

boy

was

walking

down

the

street

a

UFO

landed.

14.

The

alien

was

visiting

the

museum,the

boy

called

the

TV

station.

15.I

was

cleaning

my

room

the

fire

broke

out.

16.

Linda

shouted

his

name,some

people

looked

at

her.

二、用所给动词适当形式填空17.While

Jake

__________(look)

for

customers,

he

_______(see)

a

woman.

18.

They

__________(play)

football

on

the

playground

when

it

_____(begin)

to

rain.

19.A

strange

box

________(arrive)

while

we

_________

(talk).

20.

John

____________(sleep)

when

someone

__________(steal)

his

car.

21.Father

still

(sleep)when

I(get)up

yesterday

morning.

22.Grandma

(cook)

breakfast

while

I

(wash)

my

face

this

morning.

23.Mother

(sweep)the

floor

when

I

(leave)home.

24.I

(read)

a

history

book

when

someone

(knock)

at

the

door.

25.Mary

and

Alice

are

busy

(do)their

homework.

26.The

teacher

asked

us

(keep)

the

windows

closed.

27.I

followed

it

(see)where

it

was

going.

28.The

students(play)basketball

on

the

playground

from

3

to

4

yesterday

afternoon.

三、完成下面句子，词数不限

1.飞机在伦敦起飞时正在下雨。Itwhen

the

planein

London.

2.你记得汶川大地震时你在做什么吗DoyourememberwhatyouwhenWenchuanEarthquake.3.当铃声想起的时候，我们正在操场上玩得很开心。

Weon

the

playground

when

the

bell.4.当妈妈下班回家时，你在做什么

whenMum

from

work

5.当我在做作业时，有人敲门。

I

was

doing

my

homework,someonethe

door.

6.当外星人正在买纪念品的时候，那个女孩报了警。

the

alien

was

buying

the

souvenirs,the

girl

the

police.

答案

looking

,saw

playing,began

,

were

talking

sleeping,

stole

,

sleep,got

cooking,was

washing

sweeping,left

24,was

reading,knock25,doing

keep

27.

tosee

playing

1.was

rai