人教版八年級英語下冊Unit7第三課時SectionA(Grammar Focus~4c)課件

Unit7What’sthehighestmountainintheworld?第三課時SectionA(GrammarFocus~4c)核心單詞1.大海;海洋

n.

ocean

?

2.和……一樣大

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.珠穆朗瑪峰有多高?

Howhigh

?isQomolangma?

6.它有8

848.86米高。It’s

8,848.86metershigh

?.

thehighestmountain

Howhigh

8,848.86metershigh

7.你知道中國是世界上最古老的國家之一嗎?DidyouknowthatChinais

oneoftheoldestcountries

?intheworld?

oneoftheoldestcountries

形容詞的比較級和最高級

英語中的形容詞在表示“更……”時,要用其比較級;在表示“最……”時,要用其最高級;原來的形式則稱為原級。1.形容詞比較級和最高級的構(gòu)成(1)規(guī)則變化構(gòu)成方法原

級比較級最高級一般單音節(jié)詞在詞尾加-er或-esttalltallertallest以e結(jié)尾的詞只在詞尾加-r或-stnicenicernicest構(gòu)成方法原

級比較級最高級以輔音字母結(jié)尾的重讀閉音節(jié)詞,雙寫詞尾的輔音字母,再加-er或-estbigbiggerbiggest以“輔音字母＋y”結(jié)尾的雙音節(jié)詞,先改y為i,再加-er或-esthappyhappierhappiest構(gòu)成方法原

級比較級最高級部分雙音節(jié)和多音節(jié)詞,在單詞前面直接加more或mostimportantmoreimportantmostimportant(2)不規(guī)則變化原

級比較級最高級good/wellbetterbestbad/illworseworstmany/muchmoremostlittlelessleastfarfarther/furtherfarthest/furthest2.形容詞比較級的用法(1)表示兩者進行比較時用形容詞比較級,其結(jié)構(gòu)為“A＋謂語動詞＋形容詞比較級＋than＋B.”。如:Sam’s

sister

is

taller

than

mine.

薩姆的妹妹比我的妹妹高。The

result

was

more

perfect

than

what

we

imagined.

結(jié)果比我們想象得更完美。【注意】為了避免重復(fù),在從句中常用theone(s),that,those等詞來替代前面出現(xiàn)過的名詞,其中theone替代可數(shù)名詞單數(shù)形式,theones或those替代可數(shù)名詞復(fù)數(shù)形式,that替代不可數(shù)名詞。如:This

room

is

bigger

than

the

one

next

door.

這個房間比隔壁的那個要大。(2)表示程度的副詞,如“兩多

(alot/much)兩少(abit/alittle)”,even,far以及afew,still,rather等可以修飾形容詞的比較級,表程度。如:She’s

much

/

even

/

a

lot

/

far

healthier

than

she

used

to

be.

她比過去要健康得多。I

think

I’m

a

little

/

a

bit

better

today.

我想我今天更好一點了。(3)表示兩者之間進行選擇時,用句型“Which/Whois＋形容詞比較級,AorB?”。如:Who

is

taller,

Li

Ming

or

Wang

Tao?

誰更高,李明還是王濤?Which

sweater

is

more

beautiful,

the

yellow

one

or

the

pink

one?

哪件毛衣更漂亮,黃色的還是粉色的?(4)表示“越來越……”時,用“比較級＋and＋比較級”,多音節(jié)詞和部分雙音節(jié)詞用“moreandmore＋形容詞原級”。如:It’s

getting

warmer

and

warmer

in

spring.

春天的天氣越來越暖和了。Our

hometown

is

becoming

more

and

more

beautiful.

我們的家鄉(xiāng)越來越漂亮了。(5)表示“越……,越……”時,用“the＋比較級,the＋比較級”。如:The

more

worried

you

are,

the

less

happy

you’ll

become.

你越焦慮,就會越不開心。3.

形容詞最高級的用法(1)表示三者或三者以上的人或物進行比較時,用最高級形式。形容詞最高級前必須加定冠詞the,句末常跟一個in/of/among短語來表示范圍。如:The

Yangtze

River

is

the

longest

river

in

China.長江是中國最長的河流。He

is

the

strongest

of

the

three

boys.

他是3個男孩子中最強壯的一個。(2)表示在三者或三者以上的人或物中進行選擇時,用“Which/Whois＋the＋形容詞最高級,A,BorC?”結(jié)構(gòu)。如:Which

city

is

the

most

beautiful

one,

Beijing,

Shanghai

or

Guangzhou?

哪個城市最漂亮,北京、上海還是廣州?(3)表示“最……的……之一”時,用“oneofthe＋形容詞最高級＋復(fù)數(shù)可數(shù)名詞”。如:He

is

one

of

the

most

popular

singers.

他是最受歡迎的歌手之一。(4)形容詞最高級前面可以加序數(shù)詞,表示“第幾……的”。如:Billy

is

the

second

tallest

boy

in

our

class.

比利是我們班第二高的男孩。(5)形容詞最高級前面可以用物主代詞、指示代詞、名詞所有格等修飾,但此時不能再用定冠詞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。

根據(jù)句意,用所給單詞的適當(dāng)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、根據(jù)句意,用所給單詞的適當(dāng)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、找出下列句子的錯誤,并將錯誤部分在橫線上進行更正6.TheCaspianSeaisthemostdeepsaltlakeintheworld.

most

deep改為deepest 7.

Climbing

mountains

is

dangerous

than

swimming.

dangerous改為more

dangerous most

deep改為deepest dangerous改為more

dangerous 9.

City

Movie

Theater

is

largest

cinema

in

our

city.

largest改為the

largest 10.

Tina

is

younger

than

any

girl

in

her

class.

any改為any

other largest改為the

largest any改為any

other 8.

Jane

is

1.50

meter

tall.

meter改為meters meter改為meters 三、單項填空(語法專練)(

B

)11.Makingrobotsisoneof

?activitiesamongstudents.Eachofthemhashisownrobot.(2022畢節(jié)改編)

A.morepopularB.themostpopularC.mostpopularB(

C

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