英語一輪復(fù)習(xí)必修三unit4

Unit4 Astronomy：the

science

ofthe

stars——天文學(xué)：恒星科學(xué)本節(jié)目錄基礎(chǔ)盤點自測自評考點串講講練互動基礎(chǔ)盤點自測自評[核心單詞]n．天文學(xué)1．2．3．n．系統(tǒng);體系;制度

n．學(xué)說;理論adj.基本的;基礎(chǔ)的adv.因此;于是5．6．7．n．原子astronomysystemtheory4．

atmosphere

n．大氣層;氣氛fundamentalthusatom9．

vi.&

vt.碰撞;墜落10．11．12．13．14．n．&

vt.拉(力);拖;牽引力vi.&

vt.(使)浮動;(使)漂浮n．漂浮物

n．萬有引力;重力n．氣候adj.猛烈的;激烈的;強(qiáng)暴的→violence

n．暴力→violently

adv.暴力地;猛烈地15．

(prep.)不同;不像→like

vt.喜歡prep.相像→likely

adj.可能的16．

(adj.)有害的→harm

n．&

v．傷害→harmless

adj.無害的8．

gentle

adj.溫和的;文雅的crashpullfloatgravityclimateviolentunlikeharmful17．vi.存在;生存→existence

n．存在;生存n．謎;難題vt.&

vi.(使)迷惑;(使)為難→puzzled

adj.迷惑的→puzzling

adj.令人迷惑的exist18．

puzzle1．2．3．4．6．7．8．9．10．[高頻短語]及時，終于下蛋產(chǎn)生；分娩輪到某人；接著阻止；制止擋住(光線)感到高興；感到振奮既然突發(fā)；爆發(fā)密切注視；當(dāng)心；提防in

timelay

eggsgive

birth

toin

one’s

turn5．

prevent...fromblock

outcheer

upnow

thatbreak

outwatch

out[典型句式]now

that既然,由于“Oh,dear,”

I

cried,“walking

does

need

a

bit

of

practice now

that

gravity

has

changed.”

“天哪,”我大聲說,“引力改變了,走路也的確需要練一練了?！眒ake

it

possible使……成為可能This

produced

a

chain

reaction,

which

made

it

possiblefor

life

to

develop.這就產(chǎn)生了一系列的反應(yīng),使得生命就有可能開始發(fā)展了。So比較級前的倍數(shù)表達(dá)But

when

I

tried

to

step

forward,I

found

I

was

carried twice

as

far

as

on

the

earth

and

fell

over.但是當(dāng)我努力向前邁步的時候,我發(fā)覺我被送出去很遠(yuǎn),步子的跨度竟是地球上的兩倍,因而我摔倒了。whether引導(dǎo)的主語從句whether

life

will

continueon

the

earth

for

millions

ofyears

to

come

will

depend

onwhether

this

problem

can

be

solved

.所以,在未來的數(shù)百萬年中,生命能否在地球上延續(xù)取決于這個問題能否得到解決。5．現(xiàn)在分詞表示“結(jié)果”As

a

result

of

this

event,a

great

dust

cloud

formed

in

thesky blocking

out

the

sunlight

.由于這件事,在天空中形成一大團(tuán)塵埃遮住了陽光?？键c串講講練互動[單詞精研]1.

exist

vi.存在,生存(教材P26)They

laid

eggs

too

and

existed

on

the

earth

formore

than

140

million

years.它們也生蛋,在地球上生存了一億四千多萬年。③(2011·高考大綱全國卷·閱讀理解A)There

existed

a

close

relationship

between

families

andtheir

milkmen.④No

one

knows

how

this

world

came

into

existence/

being.各家各戶和他們的送奶人之間存在一種親密的關(guān)系。沒有人知道這個世界是怎樣形成的。2.

harmful

adj.有害的;傷害的(2012·高考浙江卷·閱讀理解A)Some

researchers

foundthat

rising

temperatures

are

having

harmful

effects

on

at

least

five

species

of

rabbit

in

the

US.一些研究者發(fā)現(xiàn)升高的溫度對生活在美國的至少五種兔子有不好的影響。②He

has

got

into

the

bad

habit

of

reading

in

bed,

whichis

harmful

to

/

does

harm

to

his

eyesight.③As

far

as

I’m

concerned,

there

is

no

harm

in

making

anapology

to

him

first.他已養(yǎng)成一個在床上看書的壞習(xí)慣,這習(xí)慣有害于他的視力。就我個人而言,先向他道歉沒有什么壞處。3.

puzzle

vt.&vi.(使)迷惑;(使)為難;(使)窘困;感到迷惑

n．(游戲的)猜謎;難題;謎(2012·高考江西卷·閱讀理解A)But

his

curiosity

was

difficult

to

control

and

this

newcomputer

really

puzzled

him.但是他難以抑制自己的好奇心,并且這臺新電腦確實讓他很迷惑。①It

puzzles

scientists

how

these

creatures

can

survive

insuch

severe

conditions.②Her

puzzled

look

on

her

face

suggested

she

didn’tunderstand

what

I

said.這些生物是如何在這樣艱難的條件下存活的,這使科學(xué)家很疑惑。她臉上迷惑的表情表明她不明白我說的話。4.

pull

n.&

vt.

拉(力);拖;牽引力(牛津P1604)The

police

car

signalled

to

us

to

pull

in.警車發(fā)出信號,要我們駛向路邊?？俊w納拓展pull

down

拆毀；摧毀pull

in

(車輛)進(jìn)站停靠；靠邊停靠pull

out

駛出；退出pull

through

康復(fù)；痊愈助記[短語精釋]1.

in

time

及時;終于,總有一天(2012·高考江蘇卷)—Thank

God

you’re

safe!—I

stepped

back,

just

in

time

to

avoid

the

racing

car.——謝天謝地,你安全了！——我向后退了一步,正好及時避過了賽車。①No

matter

how

much

you

feel

the

pull

of

the

past,

makea

determined

effort

to

look

to

the

future.②It’s

going

to

be

tough

but

we’ll

pull

through

it

together.③They

are

pulling

down

those

houses

to

make

room

foranew

hotel.不管對過去有多么留戀,你也要下定決心往前看。這件事會很棘手,但我們將協(xié)辦把它完成。

為了給新旅館騰地,他們正在拆除那些房屋。歸納拓展on

time

準(zhǔn)時;按時in

no

time

立即;馬上at

a

time

一次;每次at

one

time

曾經(jīng);一度at

times

有時ahead

of

time

提前take

one’s

time

別著急;慢慢來[句型精析]1.

(教材P26)

This

produced

a

chain

reaction,

which

made

itpossible

for

life

to

develop.這就形成一個連鎖反應(yīng)，使生命發(fā)展成為可能。[句法分析]for

life

to本句中it作形式賓語，真正的賓語為不定式短語develop。it作形式賓語還可以代替動名詞或從句。①I

find

it

strange

that

she

doesn’t

want

to

go.她居然不想去，我覺得奇怪。②We

all

consider

it

a

pity

that

you

didn’t

come

to

the

party.我們都認(rèn)為你沒有來參加聚會很遺憾。③You

may

depend

on

it

that

we’re

honest.你可以相信我們是誠實的。④I

hate

it

when

people

speak

with

their

mouths

full.我不喜歡人們說話時嘴里有滿滿的東西。①When

it

is

in

my

turn,

I

am

too

excited

to

speak.當(dāng)輪到我時,我激動得都說不出話來了。②Theory

is

based

on

practice

and

in

turn

servespractice.理論的基礎(chǔ)是實踐,反過來理論又為實踐服務(wù)。③You

can’t

all

do

it

together;

you’ll

have

to

take

turns.你們不能全體一齊上;你們得輪流做。④Now

it

is

your

turn

to

look

after

the

children.現(xiàn)在輪到你照看孩子了。①(2011·高考陜西卷)The

new

stad