Unit+10+Grammar 人教版八年级英语下册

Unit10I'vehadthisbikeforthreeyears.GrammarTo

learn

the

Present

Perfect

Tense.To

learn

the

usage

of

forand

since

.1.--How

long

have

you

had

that

bike

overthere?--I've

had

it

for

three

years.2.--How

long

has

she

owned

the

toy

bear?--she

has

owned

it

since

two

years

ago.Let's

read1.Howlonghaveyouhadthatbikeoverthere?I'vehad

itforthree

years.2.How

long

has

his

son

ownedthetrainand

railwayset?He'sowneditsince

his

fourth

birthday.3.Have

you

ever

played

football?Yes,IdidwhenIwaslittle,butI

haven't

played

for

a

while

now.1.现在完成时态表示过去发生或者已经完成的动作对现在造成的影响或结果。标志词：already,yet,just,ever,never现在完成时的用法句中动词的特点1.这本书我买了5年了。l

have

boughtthe

bookforfiveyears.(

)

I've

had

the

book

for

five

years.(

)2.你哥哥参军多长时间了?How

long

hasyour

brotherjoinedthearmy?(

)How

long

hasyour

brother

been

inthearmy/beena

soldier?(

)XX2.完成时态表示过去某一时刻开始一直持续到现在的动作或者状态。现在完成时的用法非延续性动词和延续性动词之间的转换1.转换为相应的延续性动词，用于现在完成catch

a

cold

—

have

a

coldgettoknow—knowgetto

sleep

—sleepborrow

—

keepput

on

—wearbuy—have2.转化为“be+形容词/副词/介词/名词”begin/start—

beongo

out

—

beoutclose

—

beclosedopen—

beopengetto/arrive/reach—

be(in)die

—be

deadleave—

beawayfinish—be

overfallsleep—

beasleepjoin—be

in/bea

member

ofbecome

—

bemakefriends—

be

friendscome/go/—

be+相应的介词短语1.JimisinJapan.Hearrivedtherethreedaysago.2.Theyareveryhungry.Theirlastmealwastenhoursago.Rewritethesentences

usingforor

since.They

have

been

hungry

for

tenhours/since

ten

hours

ago.Jim

has

been

in

Japan

for

three

years.3.I

have

a

camera.

lboughtit

in

2009.4.IknowAnna.Ifirst

met

herthreeyearsago.5.Linda

is

ill.She

became

OnMonday.I

have

known

Ann

for

three

years/since

three

years

ago.Linda

has

been

ill

since

Monday.I

have

had

a

camera

since

2009.1.现在完成时的特殊疑问句的结构：疑问词+

have/has

+

主语+过去分词+其他成分。询问时间长短的疑问词用how

long。2.介词for

后接一段时间，指某个动作或情况到现在为止已持续了多久。3.since有两种用法，分别是：①

作为介词，接一个时间名词；②

作为连词，引导一个时间状语从句。since表示“自……以来”,指某个动作或情况从过去某一点时间一直持续到现在。Ⅰ.用since或for填空。1.JimhasbeeninIreland________Monday.2.JillhasbeeninIreland________threedays.3.Twoyearshaspassed________heleftBeijing.4.Mollyhaskeptthebook________twoyearsago.sinceforsincefor5.India

has

beenan

independentcountry

1947.6.The

bus

is

late.They’vebeenwaiting

20)1minutes.7.Nobody

lives

inthose

houses.Theyhave

beenempty

manyyears.8.Mike

has

been

ill

a

longtime.He

has