新概念英语第二册-Lesson17

★appear①vi.出现，显露（反义词是disappear）Theshipappearedonthehorizon(地平线).②appearas扮演……角色Heappearedasaprince.第一页第二页，共28页。③vi.似乎，看起来好象（与seem同义），显得(系动词，后面直接加形容词)Heappearsnervous.他显得很紧张(看起来)Nowitappearsyouarewrong.Heappearstobeyoung

第二页第三页，共28页。★brightadj.鲜艳的①Thesunwasverybright.②Theboyisverybright.③Hehasabrightfuture.brightred鲜红色；brightyellow明黄色；brightblue宝蓝色第三页第四页，共28页。★stagen.舞台onthestage：在舞台上inthestage：在某一阶段,时期intheearlystageinourhistory。在我们的历史早期。第四页第五页，共28页。★stockingn.（女用）长筒袜★sockn.短袜第五页第六页，共28页。【Specialdifficulties】情态助动词must第六页第七页，共28页。情态动词must和have

to都有“必须”的含义，它们的用法如下：

（一）、

must

“必须”、“应该”1.must

表示“必须”、“应该”。

①We

must

protect

our

environment.(我们必须保护环境。）

②Everyone

must

obey

the

rule.（人人必须遵守制度。）第七页第八页，共28页。2.

must的否定形式must

not表示“不应该”、“禁止”、“不准”。语气比较强烈。①You

mustn’t

speak

like

that.(你不应该像那样讲话。）

②You

mustn’t

be

late

for

school.（你不应该上学迟到。）

3.在回答must的问句时，肯定形式用must来回答，但否定形式用needn’t

或don’t

have

to来回答。而不用mustn’t来回答。例如：

①——Must

I

be

home

before

8

o’clock?

——Yes,

you

must.

No,

you

needn’t./No,

you

don’t

have

to.

第八页第九页，共28页。（二）、have

to

表示“必须”、“不得不”，例如：

①He

has

to

stay

in

bed

for

3

or

4

days.

②We

will

have

to

get

up

early

tomorrow.

补充：have

got

to是

have

to的口语形式。

①I’ve

got

to

leave

for

Nanjing.第九页第十页，共28页。*Must与

have

to的区别：

must表示的是说话人的主观看法，而have

to则表示的是客观需要。Must一般只有现在时，而have

to有更多的形式。

①I

must

go

now.(主观看法)

②

My

mother

is

ill,

so

I

have

to

go

now.(客观需要)第十页第十一页，共28页。1.----Must

I

do

it

now?

-----No,

you

_______.

A.

needn’t

B.

don’t

have

to

C.

mustn’t

D.

A

or

B

2.It’s

nearly

seven

o’clock.

Jack

______be

here

at

any

time.

A.

must

B.

need

C

should

D

can.

3.When

can

I

come

for

these

photos?

I

need

them

tomorrow

afternoon.

-------They

____be

ready

by

12:00.

A.

can

B.

should

C.

might

D.

need第十一页第十二页，共28页。【课文讲解】第十二页第十三页，共28页。MyauntJenniferisanactress.Shemustbe

atleastthirty-fiveyearsold.Inspiteofthis,sheoftenappears

onthestage

asayounggirl.第十三页第十四页，共28页。Jenniferwillhavetotakepartinanewplaysoon.Thistime,shewillbeagirlofseventeen.Intheplay,shemustappearinabrightreddressandlongblackstockings.第十四页第十五页，共28页。Lastyearinanotherplay,shehadtowearshortsocksandabright,orange-coloureddress.Ifanyoneeverasksherhowoldsheis,shealwaysanswers,'Darling,itmustbeterribletobegrownup!'第十五页第十六页，共28页。Canyouanswerthesequestions?WhatdoesAuntJenniferdoandhowoldisshe?MyauntJenniferisanactressandShemustbeatleastthirty-fiveyearsold.2)WhatpartdoesJenniferoftenactonthestage?Sheoftenappearsonthestageasayounggirl.

3)Whatdoesshethinkofbeinggrownup?Itmustbeterribletobegrownup第十六页第十七页，共28页。1、MyauntJenniferisanactress.以-ess结尾的是女性；以-or、-er结尾的是男性actor男演员；actress女演员:waiter男服务员；waitress女服务员prince王子；princess公主lion公狮子；lioness母狮子God上帝；Goddess女神

(God上帝,注意“G”大写)第十七页第十八页，共28页。2、Shemustbeatleastthirty-fiveyearsold.年龄的两种表示方法：①数字+yearsold，作表语thirty-fiveyearsold三十五岁②数字+-year-old，作定语myfour-year-olddaughter第十八页第十九页，共28页。must+动词原形不得不,必须；(对现在的)推测atleast至少,最少He'sbeenawayforatleastaweek.atmost最多

Therewereatmost350peopleinthehall.Shemustbeatmostfifteenyearsold.她最多十五岁Shemustbeatleastfifteenyearsold.她至少十五岁第十九页第二十页，共28页。Must+原形……(1)＝haveto“不得不，必须”

Imustgotoschool=Ihavetogotoschool.haveto……可以有任意时态Shewillhaveto...Shedoesn’thavetoShehadto...Shehasto...Shehas/Ihavehadto...(2)（对现在的）推测对现在的推测：mustdo对过去的推测：musthavedoneShemustbeintheclassroomnow.Shemusthavedoneherhomework,becauseIsawhimsingingintheroom.第二十页第二十一页，共28页。3、Inspiteofthis,sheoftenappearsonthestageasayounggirl.inspiteof不管，尽管(“of”为介词,后面一定会加名词、代词或从句)=despiteinspiteofthis尽管如此Inspiteofthis,Istilllikeschool.

第二十一页第二十二页，共28页。as的用法①作为介词，可以表示“作为”、“以……身份”等Inthisfilm,heappearedasapoliceman.②作为连词，可以表示“因为”、“正当……时候”YoumusttakecareofthebadytomorrowasIamgoingtoLondon.（因为，由于）Asweweretalkingabouthim,heknockedatthedoor.（正当……时候）Doasyouaretold.叫你怎么做就怎么做(按你被告知的那样去做)（以……方式）第二十二页第二十三页，共28页。4、Jenniferwillhavetotakepartinanewplaysoon.join参加了某一种团体,成为其中一员jointhearmy参军jointheparty入党joinin:参加入一种娱乐活动或者游戏joininthegame

takepartin:参加某一种活动takepartintherace参加比赛takepartinaplaytakepartinthesportsmeeting.attend：出席attendthemeeting.attendtheparty出席宴会第二十三页第二十四页，共28页。5、Intheplay,shemustappearinabrightreddressandlongblackstockings.in(+颜色、衣服)

穿着……样的衣服，用介词短语取代动词Theboyisingreen.Sheisinjeans.wearwearabeard留胡子[n]穿戴的衣服men’swearunderwear内衣第二十四页第二十五页，共28页。6、Ifanyoneeverasksherhowoldsheis,shealwaysanswers,'Darling,itmustbeterribletobegrownup!'ever=atanytime任何时候(时间副词)itmustbe一定……(表示推测)grown-upadj.成年人Whatareyouwanttobewhenyouaregrownup.begrown-up作为一个成年人第二十五页第二十六页，共28页。growandgrowupgrowvi.生长，成长，发育Treesofthekinddon