WelcomeUnitDiscoveringUsefulStructures是一個(gè)句子所敘述的主體，表明動(dòng)作是“誰，什么”發(fā)出的，一般可由名詞、代詞、數(shù)詞、動(dòng)名詞、動(dòng)詞不定式、主語從句等充當(dāng)。1.主語(S-subject):Thecarrunsfast.Sheiskind.EightisaluckynumberinChina.Swimmingismyfavorite.Toseeistobelieve.Whatweneedistime.名詞動(dòng)名詞動(dòng)詞不定式代詞數(shù)詞主語從句

Hereads

abook.

TheboylikesEnglish.

Theriverflows.

Thesunrises.及物動(dòng)詞及物動(dòng)詞不及物動(dòng)詞不及物動(dòng)詞說明主語的動(dòng)作或狀態(tài)，一般由及物動(dòng)詞和不及物動(dòng)詞充當(dāng)。2.謂語(V-verb)：表示動(dòng)作、行為的對(duì)象；賓語一般可由名詞、代詞、數(shù)詞、動(dòng)名詞、動(dòng)詞不定式等充當(dāng)。

Hereadsabook.

Helovesher.

Hewantsthree.

Helikesswimming.

Shewantstofly.

Hewaitsforthechance.

Heboughtheracoat.名詞代詞

數(shù)詞動(dòng)名詞不定式

her：間接賓語；acoat：直接賓語名詞(介賓)3.賓語(O-object):用在系動(dòng)詞之后,說明主語“是什么”“怎么樣”；一般可由名詞、形容詞、動(dòng)名詞、動(dòng)詞不定式、代詞、數(shù)詞、介詞短語等充當(dāng)。

Sheisadoctor.

Theclothfeelssoft.

Hisfavoritesportisrunning.

Yourtaskistofindoutthecost.

Thehelperishim.

TheluckynumberinChinaiseight.

Sheisintheroom.

名詞形容詞動(dòng)名詞代詞不定式數(shù)詞介詞短語4.表語(P-predicative)：定語ShelikesorangesimportedfromtheUSA.JohngaveMarymany

books，whicharefullofpictures．簡(jiǎn)單句的擴(kuò)展基本句型+附屬成分（定語、狀語）狀語Sheissittingatthedesk,doingherhomework.Ashewasill,

hedidn’tcometoclassyesterday.1.我們發(fā)現(xiàn)禮堂坐滿了。Wefoundthehallfull.2.我們發(fā)現(xiàn)大禮堂坐滿了學(xué)生和教師。Wefoundthegreathallfullofstudentsandteachers.3.我們發(fā)現(xiàn)大禮堂坐滿了學(xué)生和教師，在聽一個(gè)重要報(bào)告。Wefoundthegreathallfullofstudentsandteachers，listeningtoanimportantreport.4.我們發(fā)現(xiàn)大禮堂坐滿了學(xué)生和教師，在聽人民日?qǐng)?bào)的一位同志作有關(guān)東歐局勢(shì)的重要報(bào)告。WefoundthegreathallfullofstudentsandteacherslisteningtoanimportantreportmadebyacomradefromthePeople'sDaily

oncurrentaffairsinEastEurope.容易出錯(cuò)的簡(jiǎn)單句

Withtimepermitting,we’llvisittheSummerPalace.

Timepermitting,we’llvisittheSummerPalace.

Permitted,we’llvisittheSummerPalace.

with結(jié)構(gòu)做狀語，相當(dāng)于Iftimepermits,

獨(dú)立主格結(jié)構(gòu)做狀語，相當(dāng)于Iftimepermits,

過去分詞做狀語，相當(dāng)于If

wearepermitted,

1.

The

1000-year-old

school

lies

in

the

centre

of

the

city.S

Activity

1Read

the

sentences

and

analyse

the

structures.V

A

2.

We

must

act.S

V

3.

The

maths

homework

looks

easy.S

P

4.

The

teacher

found

the

classroom

empty.S

V

O

C

5.

My

mum

bought

me

a

new

dictionary.S

Read

the

sentences

and

analyse

the

structures.V

DO

6.

Tom

is

looking

forward

to

meeting

the

new

exchange

student.S

V

7.

There

is

an

English

Corner

at

our

school.There

be…

8.

We

had

chemistry

in

the

newly

built

lab.S

V

O

A

IO

O

1.

…

that

dream

has

come

true!S

Activity

2Read

the

passage

and

analyse

the

structures

of

the

underlined

sentences.V

2.

Tim

and

his

classmates

are

living

on

a

ship.S

V

3.

They

also

learn

about

ships

and

the

sea.S4.

Tim

writes

his

parents

an

email

...S

V

IO

DO

A

V

O

并列句用分號(hào)：Wefishedallday;wedidn’tcatchathing.用分號(hào)，后跟一個(gè)連接副詞：Wefishedallday;however,wedidn’tcatchathing.用并列連詞（如and、but、so、yet等）Wefishedallday,but(we)didn’tcatchathing.簡(jiǎn)單句+并列連詞或分號(hào)+簡(jiǎn)單句Exercise:請(qǐng)用合適的并列連詞把每組句子合并為一個(gè)并列句。Hewastired,sohewenttobed.1.Hewastired.Hewenttobed.

2.Thechildhidbehindhismother'sskirt.Hewasafraidofthedog.3.Hemadeapromise.Hedidn’tkeepit.Hemadeapromise,butHedidn’tkeepit.Thechildhidbehindhismother'sskirt,forhewasafraidofthedog.1.Ienjoymusic；he

(be)isfondofplayingguitar.2.Thetwowords

(spell)differently,butpronouncedthesame.3.Notonlyisthefurcoatsoft,

itisalsowarm.

4.Thesnowbegantofall,

wewenthome.5.Workhard,

youwillfailthefinalexam.6.Itookupthebrush,usingthecorrectgesture,______(dip)itintheink,andcarefullywrote“one”inChinese.isspelledbutsoordipped復(fù)合句狀語從句：Wheneverhegetsdrunk，JohnmakesMaryveryangry．定語從句：Sheisthegirlwhosingsbestinmyclass.名詞性從句（主語從句、賓語從句、表語從句、同位語從句）WhatImeanistoworkharder.簡(jiǎn)單句+連詞+簡(jiǎn)單句復(fù)合句與簡(jiǎn)單句：復(fù)合句=簡(jiǎn)單句+連詞+簡(jiǎn)單句Idon’tknowhim.Hehasfinishedhisworkthathehasfinishedhiswork.whetherhehasfinishedhiswork.賓語從句HeisleavingforWashington.thatheisleavingforWashington.whenheisleavingforWashington.whyheisleavingforWashington.howheisleavingforWashington.whetherheisleavingforWashington.4.

…

tells

them

what

happened

on

the

ship.V

Read

the

passage

and

analyse

the

structures

of

the

underlined

sentences.DO

5.

There’s

always

someth