be動詞、助動詞、情態(tài)動詞講解(基礎(chǔ)篇)第一講

PAGE4be動詞、助動詞、情態(tài)動詞講解(基礎(chǔ)篇)1、be動詞的用法。beam/isare現(xiàn)在時waswere過去時單數(shù)復(fù)數(shù)英語中，be動詞選用單數(shù)還是復(fù)數(shù)，要由主語來定，主語是單數(shù)，就用單數(shù)，反之用復(fù)數(shù)?！艟渲泻衎e動詞時：肯定句：主語＋be＋其他否定句：主語＋be＋not＋其他一般疑問句：Be＋主語＋其他＋？特殊疑問句：疑問詞（what/who/when/where）＋be＋主語＋其他＋？Iamateacher.Youareright.Sheis16yearsold.Myfatherisathome.Thestudentsareplayinggames.Myteacherwasillyesterday.Thereisapictureonthewall.Therearetwobooksonthetable.★be動詞用法歌：我用am，你用are，is連接他她它。單數(shù)名詞用is，復(fù)數(shù)名詞全用are。變疑問，往前提，句末問號莫丟棄；變否定，更容易，be后not莫忘記；疑問否定任你變，句首大寫莫遲疑。★be動詞作謂語，它后面一般跟名詞、形容詞或介詞短語。她個子很高。她在教室里。她是一個高個子的女孩。2、助動詞的用法。英語句子按正常語序是“什么人或事物”+“做什么”，即，我們常說的“主語+謂語+其他”。①主語為I或復(fù)數(shù)名詞、代詞時：肯定句：I/We/They/Thestudents＋動詞原形＋其他＋。WewatchTVeverynight.變否定：主語＋don’t＋動詞原形＋其他＋。Wedon’twatchTVeverynight.一般疑問句Do+主語+動詞原形+其他+？DoyouwatchTVeverynight?Yes,wedo./No,wedon’t.特殊疑問句：疑問詞+do+主語+動詞原形+其他+？HowoftendoyouwatchTV?②主語為單數(shù)名詞或代詞時：肯定句：主語+動詞第三人稱單數(shù)形式+其他+。HewatchesTVeverynight.否定句：主語+doesn’t+動詞原形+其他+。Hedoesn’twatchTVeverynight.一般疑問句：Does+主語+動詞原形+其他+？DoeshewatchTVeverynight?Yes,hedoes./No,hedoesn’t.特殊疑問句：疑問詞+does+主語+動詞原形+其他+？HowoftendoeshewatchTV?★主語為單數(shù)或不可數(shù)名詞，謂語要用單數(shù)第三人稱，反過來，看見動詞用了單數(shù)第三人稱，可以推知主語是單數(shù)或不可數(shù)名詞。()1.How_________yourdadhelpathome?A.doB.doesC.is()2._______goesbadeasilyinsummer.A.MilkB.ApplesC.Cakes③過去時的句式（當(dāng)句子時態(tài)為過去時時，動詞用過去式，不受主語單復(fù)數(shù)的影響）肯定句：主語+過去式+其他+。He/Wegotupearlyeverymorninglastyear.否定句：主語+didn’t+動詞原形+其他+。He/Wedidn’tgetupearlyeverymorninglastyear.一般疑問句：Did+主語+動詞原形+其他+？I.填入適當(dāng)?shù)闹^語動詞1.

I

___

a

boy.

____

youa

boy?

No,

I

__not.2.

The

girl______

Jack’s

sister.

3.

The

dog

______

tall

and

fat.

4.

The

man

with

big

eyes

______

a

teacher.

5.

______

your

brother

in

the

classroom?

6.

Where

____

your

mother?

She

_____

at

home.7.

How

_______

your

father?

8.

Mike

and

Liu

Tao

______

at

school.

9.

Whose

dress

______

this?

10.

Whose

socks

______

they?

11.

That

______

my

red

skirt.

12.

Who

______

I?

13.The

jeans

______

on

the

desk.

14.Here

______

a

scarf

for

you.

15.

Here

______

some

sweaters

for

you.

16.

The

black

gloves

______

for

Su

Yang.17.

This

pair

of

gloves

______

for

Jim.18.Physics_______myfavoritesubject.19.Thepolice_____runningafterthethief.20.Ourclass________goingtothezoo.ⅱ.將下列句子奇數(shù)變成否定句，偶數(shù)變疑問句。1.Ilikemusic.2.Hewalkstoschool.3.TheyoftenhaveEnglishonMonday.4.Theboysareswimmingintheriver.5.Shesmileshappily.6.Marywenttothezoolastweek.7.Theworkersmademanycarsinthefactory.8.Weshouldprotecttheinnocent.9.HerparentsflytoLondontwiceamonth.10.AllmyclassmatesclimbedtheTaiMountlastautumn.11.Theteacherasksustocleantheclassroom.12.HewillgobacktoAmericaattheendoftheyear.ⅲ.將下列句子先變成否定句