2016小升初英语第四章第三节

第四章 动词和时态第三节

现在进行时知识梳理一、现在进行时的用法现在进行时表示现在正在进行或正在发生的动作，也可以表示当前一段时间内的活动或现阶段正在进行的动作。句型结构是：be＋v-ing形式(现在分词)。标志时间词：now，look，listen，over

there，look

at，It's＋时间等。二、现在分词的变化规则一般情况下，在动词词尾加ing。如：go—going，play—playing，eat—eating以不发音的字母e结尾的动词，去e再加ing。如：write—writing，come—coming，take—taking以重读闭音节结尾，且词尾只有一个辅音字母的动词，双写最后这个辅音字母再加ing。如：run—running，swim—swimming，shop—shopping以ie结尾的动词，将ie改为y，再加ing。如：die—dying，lie—lying三、现在进行时的句型结构肯定句：主语＋be动词(am，are，is)＋v-ing＋其他.如：I

am

washing

my

hands

now.Look！

Jack

is

listening

to

music.Tom

and

his

brother

are

doing

their

homework.It

is

nine

o'clock.

The

children

are

having

class.否定句：主语＋be动词(am，are，is)＋not＋v-ing＋其他.如：I

am

not

(I'm

not)

washing

my

hands

now.The

children

are

not(aren't)

playing

over

there.It's

six

past

ten.

Tom

is

not

(isn't)

having

dinner.一般疑问句：Is/Are/Am＋主语＋v-ing＋其他？如：—Are

you

watching

TV

now？—Yes，

I

am.

/No，

I

am

not.—Is

the

girl

playing

the

piano？—Yes，

she

is.

/No，

she

isn't.—Are

the

children

swimming

in

the

river？—Yes，

they

are.

/No，

they

aren't.特殊疑问句：特殊疑问词＋一般疑问句？如：I

am

watching

TV

now.→What

are

youdoing

now？Uncle

Wang

is

drinking

tea

in

the

living

room.→

Where

is

Uncle

Wang

drinking

tea？考点精析考点1

考查现在进行时的用法【例1】用所给动词的适当形式填空。She

(draw)

a

map

now.Listen！

Theboys

(sing).解析：本题考查填动词的适当形式，必须要弄清楚句子的时态。第1小题中的时间词now，第2小题中的Listen！都表示动作正在发生，都要用现在进行时；同时，注意v-ing

之前一定要根据主语的形式加上相应的be动词。答案：1.

is

drawing 2.

are

singing举一反三1.

写出下列动词的现在分词形式。(6)die

dying(2)dance

dancing(4)shop

shopping(1)sing

singing

(3)write

writing

(5)put

putting2.

单项填空。(

C

)(1)Mum

andI

houseworknow.A.

doing B.

am

doing C.

are

doing(

C

)(2)

All

the

people

afootballmatch.Everybody

is

excited.A.

watch B.

is

watching C.

are

watching(

B

)(3)

they

theirstampsatthecorner？A.

Does；

show B.

Are；

showingC.

Do；

showing考点2

考查有关现在进行时句子的句型转换【例2】按要求改写下列句子。Sarah

is

answering

the

phone.(改为否定句)They

are

riding

a

bike.(就画线部分提问)解析：本题考查现在进行时的句型转换，要以be动词为中心进行变化。第1小题改否定句，只要在be动词之后加not；第2小题是对进行时状态下的活动提问，用

“What…doing？”，注意be动词要与主语的数保持一致。答案：1.

Sarah

is

not

(isn't)answering

the

phone.2.

What

are

they

doing？举一反三按要求改写下列句子。1.

Kenny

often

plays

the

guitar

on

the

weekend.(用now

改写句子)2.

We

are

watching

cartoons

on

TV

now.(改为否定句)3.

My

grandpa

is

writing

a

letter.(就画线部分提问)4.

我正在和父母亲谈论我的生日。(汉译英)Kenny

is

playing

the

guitar