Unit4 astronomy：the science of the Stars 课件

Unit4 Astronomy：the science of the stars

常考单词、高频短语和写作句式

Ⅰ. 常考单词必背

1．harmful adj. 有害的

It's harmful to your eyes to read books in the bus.

在公共汽车上看书对你的眼睛有害。

[快速闪记]

(1)be harmful to... 对……有害

(2)harmless adj. 无害的

harm n. 损害；伤害 v. 对……有害；伤害；损害

2．exist vi. 存在；生存

Nothing exists on the moon as there is no water and no air.

月球上没有东西生存，因为那里没有水和空气。

[快速闪记]

(1)exist in 存在于

exist on 靠……生存

There exist(s)/existed... 某地有/存在……

(2)existence n. 存在；生存

3．puzzle n. 谜；难题 vt.&vi. (使)迷惑；(使)为难

The puzzled look on her face suggested she was puzzling over the puzzling math problem.

她困惑的表情暗示了她正在思考那个令人困惑的数学问题。

[快速闪记]

(1)be in a puzzle 感到困惑；不知如何是好

puzzle about/over 冥思苦想；苦苦思索

(2)puzzling adj. 令人迷惑的

puzzled adj. 感到迷惑的

4．pull n. &vt. 拉(力)；拖；牵引力

She pulled his sleeve to get his attention.

她拉拉他的袖子以引起他的注意。

[快速闪记]

pull down 摧毁、推翻、拆除

————来源网络整理，仅供供参考 1 Unit4Astronomy：Thescienceofthestars

unit 4 astronomy：the science of the stars

1. spread

vt.&vi. 展开,铺开;散布;扩大;延伸

the bird spread its wings. 那只鸟展开了翅膀。

flies spread disease. 苍蝇传播疾病。

常用结构:

spread sth. with sth. 用……抹/涂/铺……

spread ...on ...把……抹/涂/铺在……

be spread for摆好（桌子）准备

spread oneself\[口\]舒展四肢(躺下)

spread out张开，伸开，铺开，展开，伸长

高手过招

单项填空

paper making began in china and to europe.

(XX•12•河南郑州检测)

a. spread b. grew

————来源网络整理，仅供供参考 2 c. carried d. developed

解析:选a。句意为：造纸术起源于中国，又传播到了欧洲。spread传播。

2. method

n. 方法

he has introduced a new method of teaching.

他引进了一种新的教学方法。

what is the most effective method of birth control?

控制出生率的最有效的方法是什么？

联想拓展

by this means=in this way=with this method

用这种方法

易混辨析

method/means

method侧重“理论方法”，指做某事的具体步骤或程序。

a new teaching method一种新的教学方法

means（单复数同形）侧重“通过手段”或“利用工具”去达到某种目的。 ————来源网络整理，仅供供参考 3 高手过招

Unit 4 Astronomy: the science of the stars(人教版必修三)

一．重点词汇：astronomy astronomer solar system

religion theory atom billion globe

violent carbon dioxide nitrogen vapour

atmosphere unlike fundamental presence

dissolve harmful acid chain reaction

multiply oxygen shellfish amphibian reptile

dinosaur exist mammal thus puzzle

biology biologist gravity satellite gentle

geologist physicist extinct climate comet

crash spaceship pull lessen float

weightlessly cabin exhaust solar system

in time carbon dioxide lay eggs give birth to

in one’s turn prevent…from block out

Unit 4 Astronomy: the science of the

stars

Unit4Astronomy:thescienceofthestars单元要览类别课程标准要求掌握的项目话题Scienceofthestars;thedevelopmentoflife;spacetravelandgravity词汇]astronomy

n.天文学

exist

vi.

存在;生存

systemn.系统;体系;制度thusadv.因此;于是religionn.宗教;宗教信仰dioxiden.二氧化物theoryn.学说;理论biologyn.生物学atomn.原子biologistn.生物学家billionpron.&n.&adj.（英）万亿;（美）十亿puzzlen.

迷;难题 vt.&vi.（使）迷惑;（使）为难globen.球体;地球仪;地球gravityn.万有引力;重力violentadj.

猛烈的;激烈的;强暴的floatvt.&vi.（使）浮动;（使）漂浮 n.漂浮物carbonn.碳gentleadj.

温和的;文雅的atmospheren.大气层;气氛physicistn.物理学家unlikeprep.不同;不像climaten.气候fundamentaladj.基本的;基础的crashvt.&vi.碰撞;坠落harmfuladj.有害的spaceshipn.宇宙飞船acidn.酸pulln.&vt.拉;拖;牵引力chainn.链子;连锁;锁链satelliten.卫星;人造卫星multiplyvt.&vi.乘;增加massn.质量;团;块;大量oxygenn.氧exhaustvt.用尽;耗尽短语solarsystem太阳系blockout挡住（光线）intime及时;终于cheerup感到高兴;感到振奋layeggs下蛋nowthat既然givebirthto产生;分娩breakout突发;爆发inone’sturn轮到某人;接着watchout密切注视;当心;提防carbondioxide二氧化碳prevent...from阻止;制止重要句型1.whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.2.Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastornot.3.whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface.4.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.\[itis/was+adj.+that\]5.Sowhetherlifewillcontinueontheearthformillionsofyearstocomewilldependonwhetherthisproblemcanbesolved.功能Instructions:Pleasepayattentionto...