八上5-8單元英語(yǔ)知識(shí)點(diǎn)

Unit5復(fù)習(xí)重點(diǎn)

句型

1.

Your

food

looks

delicious.

look

(看起來(lái))

smell

(聞起來(lái))

五個(gè)感官動(dòng)詞

feel

(摸起來(lái))

+形容詞

主系表結(jié)構(gòu)

sound

(聽起來(lái))

taste

（嘗起來(lái))

2.

Then

no

one

will

play

with

you.

no

one，沒(méi)有人。

做主語(yǔ)時(shí)，謂語(yǔ)動(dòng)詞常用單數(shù)

I

visited

you

yesterday,

but

___

___

___

at

home.

昨天我去找你,但是沒(méi)人在家。3.

When

xiwang

was

born,

she

weighted

just

100

grams.

weight

重量，對(duì)重量提問(wèn)，用“How

much”

對(duì)時(shí)間段提問(wèn)，用“How

long”,答語(yǔ)是“for+時(shí)間段”

對(duì)頻率提問(wèn)，

用“How

often”

對(duì)數(shù)量提問(wèn)，

用“How

many+可數(shù)n復(fù)數(shù)”,“How

much+不可數(shù)n”

對(duì)距離提問(wèn)，

用“How

far”

對(duì)年齡提問(wèn)，

用“How

old”

4.

Sadly,

it

is

very

difficult

for

giant

pandas

to

survive

in

the

wild.

(1)

sadly

副詞放在句首，類似有:luckily,

finally,

perhaps,

maybe,

easily…(2)

It

is

+adj+for

sb

to

do

sth.

對(duì)某人來(lái)說(shuō)做某事很…

常用形容詞有(important/difficult/necessary/hard/easy)…

It

is

+adj+of

sb

to

do

sth.

某人做某事很…(側(cè)重于描述人的品質(zhì)或特征)

常用形容詞有（kind/friendly/generous/helpful）…

Eg.

It

is

easy____

him

____

______

this

work.

對(duì)他來(lái)說(shuō)完成這項(xiàng)工作很簡(jiǎn)單。

It

is

kind

____

him

____

_____the

little

boy.

他很善良地幫助了那個(gè)小孩。

5.

They

live

as

a

family

until

baby

tigers

are2-3

years

old.

它們像一個(gè)家庭一樣生活知道小老虎2-3歲大。

until

直到…用于肯定句時(shí)，謂語(yǔ)動(dòng)詞要用延續(xù)性動(dòng)詞

eg.

I

worked

_____he

came

back.

我工作到他回來(lái)為止。

中考連接：Usually,

we

don?t

know

how

important

something

is

_____we

lose

it.

6.

If

this

continues,

giant

pandas

will

be

in

great

danger.

If

引導(dǎo)的條件狀語(yǔ)從句，“主將從現(xiàn)”，即：if

句用一般現(xiàn)在時(shí)，主句用一般將來(lái)時(shí)

We

shouldn’t

buy

fur

coat

any

more.

我們不該再買皮毛大衣。

not

…any

more=no

longer

不再…

no

longer

常放在主謂之間，有be動(dòng)詞時(shí)放在be動(dòng)詞后面

eg.

I

am

___

a

child

____

____.=

I

am

____

____

a

child.

我不在是個(gè)孩子了。

He

____

like

swimming

____

____.=

He

____

____

like

swimming.

他不再喜歡游泳了。

語(yǔ)法

情態(tài)動(dòng)詞

1.

must/have

to

強(qiáng)調(diào)必須性

（1）must

強(qiáng)調(diào)主觀的義務(wù)和必要，主要用于肯定句和疑問(wèn)句，由must

引導(dǎo)的疑問(wèn)句，肯定回答和否定回答分別有兩種：

must.

needn’t.

Yes,

you

No,

you

have

to.

don’t

have

to.

是的，你必須。

不，沒(méi)必要。（切不可用mustn’t）

Eg.

____

I

finish

this

work

now?

我現(xiàn)在必須完成這項(xiàng)工作嗎？

Yes,

you_____./

Yes,

you_____

_____.

是的，你必須完成。

No,

you

_____./

No,

you

_____

_____.

不，沒(méi)必要。

must

的否定形式為：mustn’t，表示禁止，語(yǔ)氣較強(qiáng)烈。

Eg.

We

mustn’t

play

on

the

road.

禁止在馬路上玩耍。

（2）must

可表示肯定性地猜測(cè)。

Eg.

Who

is

that

woman?

那個(gè)女的是誰(shuí)？

I

know

her.

She

____

be

Lily?s

mother.

我認(rèn)識(shí)她，她一定是Lily?s媽媽。

It

____

have

rained

last

night,

for

the

ground

is

wet.

昨晚一定下雨了，因?yàn)榈孛媸菨竦?/p>

have

to

表示一種客觀的需要，意思是“不得不”，強(qiáng)調(diào)外部原因。有時(shí)態(tài)和人稱的變化

Eg.

Mum

is

out,

so

I

_________

look

after

my

little

brother.

Lilei

can’t

go

with

us

because

he

__________

take

care

of

his

sick

mother.

We

____________

stay

there,

Mr

Wu

told

us

not

to

move.

have

to

的否定形式為：don’t

have

to相當(dāng)于needn’t

注意時(shí)態(tài)和人稱的變化

may/might

強(qiáng)調(diào)可能性

（1）

都可以表示許可

Eg.

You

______

go

now.

你現(xiàn)在可以走了。

may

由may/might引導(dǎo)的疑問(wèn)句.

No,

you

mustn’t.

(表示阻止)

had

better

not.

eg.

I?m

sorry

I?m

late.

______

I

come

in?

對(duì)不起我遲到了，我可以進(jìn)來(lái)嗎？

Yes,

you

_____.

/

Yes,

you

_____.

是的，可以。

______

I

take

the

book

away?

我能把書帶走嗎？

Sorry,

you

________./

No,

you

_____./

No,

you

_____./

No,

__________.

對(duì)不起，你不能。/

對(duì)不起，你禁止帶走。/

對(duì)不起，你最好別。

(2)

都可以表示推測(cè)，might

語(yǔ)氣更弱，更不確定。

Eg.

He

______/_______

be

English.

他可能是英國(guó)人。

注意：might

還有一個(gè)身份為

may

的過(guò)去式，如果大的語(yǔ)言環(huán)境是一般過(guò)去式，就要用might.

Eg.

He

______

be

a

teacher

ten

years

ago.

他十年前可能是個(gè)老師。

趁熱打鐵：

()1.

______

I

get

there

on

time

today?

-------No,

you

needn’t.

A.

Can

B.

May

C.

Must

D.

Should

(

)

2.

May

I

talk

about

it

with

Lily?

-------No,

you

_______.

A.shouldn’t

B.needn’t

C.mustn’t

D.don’t

have

to

(

)

3.

Must

we

finish

all

these

work?

-------No,

you

_______.

A.

Mustn’t

B.

Haven’t

C.

not

have

to

D.

Don’t

have

to

(

)

4.

______

I

have

a

word

with

the

teacher,

sir

?

A.

Will

B.

Would

C.

May

D.

Should

(

)

_____

I

smoke

here?

-------No,

you

mustn?t.

A.

Can

B.

May

C.

Must

D.

Need

(

)

6._____

I

visit

Lucy

on

Sunday,

Mum?

-------Yes,

you

_______.

A.

Must/

can

B.

May/

may

C.

Need/

need

D.

May/

need

(

)

7.

May

I

go

now?

-------No,

you

_______.

You

______

stay

here.

A.

Needn’t/

have

to

B.

Needn’t/

must

C.

Mustn’t

/

have

to

D.

Mustn’t/

has

to

昨天晚上8點(diǎn)你在干什么？我在打掃房間。

What

were

you

doing

at

8:00

last

night?

I

was

cleaning

my

room.

2.昨天晚上我在寫作業(yè)時(shí)，媽媽回來(lái)了。

While

I

was

doing

my

homework

last

night,

my

mom

came

back.

3.昨天我到家的時(shí)候,他正在看電視.

He

was

watching

TV

when

I

got

home

yesterday.

4.昨天我在家里看書時(shí)，天下雪了.

While

I

was

reading

at

home

yesterday,

it

snowed.

5.飛機(jī)到達(dá)威海的時(shí)候,天正在下雨。

When

the

plane

arrived

in

Weihai,

it

was

raining.

【基礎(chǔ)訓(xùn)練】

1.

昨天早上9點(diǎn)鐘你在干什么?

What

_____________at

9

o’clock

yesterday

morning.

2.

當(dāng)李雷在吃早飯時(shí),吉姆進(jìn)來(lái)了.

While

LiLei

________________

Jim

came

in.

3.

不明飛行物起飛時(shí),小明正在騎自行車.

XiaoMing

_________________when

the

UFO

took

off.

4.

那時(shí),他們正在做家庭作業(yè).

They

________________________at

that

time.

5.

剛才,我們正在電話上交談.

We

___________

on

the

phone

just

now.

Choose

“when”

or

“while”

to

fill

in

the

blank