人教版八年级英语下册Unit7第三课时SectionA(Grammar Focus~4c)课件

Unit7What’sthehighestmountainintheworld?第三课时SectionA(GrammarFocus~4c)核心单词1.大海;海洋

n.

ocean

⁠

2.和……一样大

asbigas

⁠

3.太平洋

thePacificOcean

⁠

ocean

asbigas

thePacificOcean

典型句子4.世界上最高的山是什么?What’s

thehighestmountain

⁠intheworld?

5.珠穆朗玛峰有多高?

Howhigh

⁠isQomolangma?

6.它有8

848.86米高。It’s

8,848.86metershigh

⁠.

thehighestmountain

Howhigh

8,848.86metershigh

7.你知道中国是世界上最古老的国家之一吗?DidyouknowthatChinais

oneoftheoldestcountries

⁠intheworld?

oneoftheoldestcountries

形容词的比较级和最高级

英语中的形容词在表示“更……”时,要用其比较级;在表示“最……”时,要用其最高级;原来的形式则称为原级。1.形容词比较级和最高级的构成(1)规则变化构成方法原

级比较级最高级一般单音节词在词尾加-er或-esttalltallertallest以e结尾的词只在词尾加-r或-stnicenicernicest构成方法原

级比较级最高级以辅音字母结尾的重读闭音节词,双写词尾的辅音字母,再加-er或-estbigbiggerbiggest以“辅音字母＋y”结尾的双音节词,先改y为i,再加-er或-esthappyhappierhappiest构成方法原

级比较级最高级部分双音节和多音节词,在单词前面直接加more或mostimportantmoreimportantmostimportant(2)不规则变化原

级比较级最高级good/wellbetterbestbad/illworseworstmany/muchmoremostlittlelessleastfarfarther/furtherfarthest/furthest2.形容词比较级的用法(1)表示两者进行比较时用形容词比较级,其结构为“A＋谓语动词＋形容词比较级＋than＋B.”。如:Sam’s

sister

is

taller

than

mine.

萨姆的妹妹比我的妹妹高。The

result

was

more

perfect

than

what

we

imagined.

结果比我们想象得更完美。【注意】为了避免重复,在从句中常用theone(s),that,those等词来替代前面出现过的名词,其中theone替代可数名词单数形式,theones或those替代可数名词复数形式,that替代不可数名词。如:This

room

is

bigger

than

the

one

next

door.

这个房间比隔壁的那个要大。(2)表示程度的副词,如“两多

(alot/much)两少(abit/alittle)”,even,far以及afew,still,rather等可以修饰形容词的比较级,表程度。如:She’s

much

/

even

/

a

lot

/

far

healthier

than

she

used

to

be.

她比过去要健康得多。I

think

I’m

a

little

/

a

bit

better

today.

我想我今天更好一点了。(3)表示两者之间进行选择时,用句型“Which/Whois＋形容词比较级,AorB?”。如:Who

is

taller,

Li

Ming

or

Wang

Tao?

谁更高,李明还是王涛?Which

sweater

is

more

beautiful,

the

yellow

one

or

the

pink

one?

哪件毛衣更漂亮,黄色的还是粉色的?(4)表示“越来越……”时,用“比较级＋and＋比较级”,多音节词和部分双音节词用“moreandmore＋形容词原级”。如:It’s

getting

warmer

and

warmer

in

spring.

春天的天气越来越暖和了。Our

hometown

is

becoming

more

and

more

beautiful.

我们的家乡越来越漂亮了。(5)表示“越……,越……”时,用“the＋比较级,the＋比较级”。如:The

more

worried

you

are,

the

less

happy

you’ll

become.

你越焦虑,就会越不开心。3.

形容词最高级的用法(1)表示三者或三者以上的人或物进行比较时,用最高级形式。形容词最高级前必须加定冠词the,句末常跟一个in/of/among短语来表示范围。如:The

Yangtze

River

is

the

longest

river

in

China.长江是中国最长的河流。He

is

the

strongest

of

the

three

boys.

他是3个男孩子中最强壮的一个。(2)表示在三者或三者以上的人或物中进行选择时,用“Which/Whois＋the＋形容词最高级,A,BorC?”结构。如:Which

city

is

the

most

beautiful

one,

Beijing,

Shanghai

or

Guangzhou?

哪个城市最漂亮,北京、上海还是广州?(3)表示“最……的……之一”时,用“oneofthe＋形容词最高级＋复数可数名词”。如:He

is

one

of

the

most

popular

singers.

他是最受欢迎的歌手之一。(4)形容词最高级前面可以加序数词,表示“第几……的”。如:Billy

is

the

second

tallest

boy

in

our

class.

比利是我们班第二高的男孩。(5)形容词最高级前面可以用物主代词、指示代词、名词所有格等修饰,但此时不能再用定冠词the。如:Cindy

is

my

best

friend.

辛迪是我最好的朋友。Yesterday

was

his

busiest

day.

昨天是他最忙的一天。

根据句意,用所给单词的适当形式填空1.Thebluebasketisalittle

heavier

⁠

(heavy)thantheblackone.

2.Georgeisoneof

themostpopular

⁠

(popular)teachersinourschool.

3.Itwashotyesterday,butitismuch

hotter

⁠

(hot)today.

heavier

themostpopular

hotter

4.Ofallthesubjects,Englishis

themostinteresting

⁠

(interesting)forme.

5.My

mostbeautiful

⁠

(beautiful)dreamofallistotravelallovertheworld.

themostinteresting

mostbeautiful

1.LosAngelesisoneofthe

biggest

⁠

(big)citiesinsizeintheworld.

2.TheYangtzeRiveris

longer

⁠

(long)thananyotherriverinChina.

biggest

longer

一、根据句意,用所给单词的适当形式填空3.Theboyhurt

badly

⁠

(bad)thesetwodays.

4.Nosaltlakeintheworldisas

deep

⁠

(deep)astheCaspianSea.

5.—Whatisthe

highest

⁠

(high)buildinginChina?

—It’stheShanghaiTower.badly

deep

highest

二、找出下列句子的错误,并将错误部分在横线上进行更正6.TheCaspianSeaisthemostdeepsaltlakeintheworld.

most

deep改为deepest 7.

Climbing

mountains

is

dangerous

than

swimming.

dangerous改为more

dangerous most

deep改为deepest dangerous改为more

dangerous 9.

City

Movie

Theater

is

largest

cinema

in

our

city.

largest改为the

largest 10.

Tina

is

younger

than

any

girl

in

her

class.

any改为any

other largest改为the

largest any改为any

other 8.

Jane

is

1.50

meter

tall.

meter改为meters meter改为meters 三、单项填空(语法专练)(

B

)11.Makingrobotsisoneof

⁠activitiesamongstudents.Eachofthemhashisownrobot.(2022毕节改编)

A.morepopularB.themostpopularC.mostpopularB(

C

)12.—Areyougoingtorideyourbiketothebeach?—Yes.It’s