【突破极限】人教版高中英语必修3教学课件： Unit 4 Astronomy the science of the stars Unit 4 Section Two1.ppt

unit4astronomy thescienceofthestars languagepoints systemn 系统 体系 制度theyhaveawarningsysteminthehouse thelegalsystemarequitedifferentinthesecountries solarsystem太阳系systematicadj 有系统的 系统化的 2 however accordingtoawidelyacceptedtheory theuniversebeganwitha bigbang thatthrewmatterinalldirections beginwith startwith 以 开始 tobeginwith tostartwith以 为起点 开始 做 这两个词组都可以单独使用 表示 首先 第一 起初 最初 在句中作时间状语 e g tobegin startwith icouldn tlikehimatall 3 theywereintimetoproducecarbon whichweretomakeimportantisintime 及时 最终intime forsth todosth 及时 不迟我迟早会遇见他 i llseehim 她会及时回来准备晚餐 shewillbeback topreparedinner 你认为我们能及时赶上火车吗 doyouthinkwecangetthere thetrain intimefor intime intime 与time相关的短语 innotime立刻 马上attimes有时atatime每次 依次onceuponatime从前ontime按时 准时atonetime从前forthetimebeing暂时fromtimetotime不时地 4 whatitwastobecomewasuncertainuntilbetween4 5and3 8billionyearsagowhenthedustsettledintoasolidglobe whatisevenmoreimportantisthatastheearthcooleddown waterbegantoappearonitssurface 考点 以上两句均为what引导的主语从句 1 使大家吃惊的是 isthathedidn tcometothemeeting whatsurprisedeverybody 2 他所做的 addedtoourdifficulty whathedid 5 astheearthcooleddown waterbegantoappearonitssurface 随着地球的冷却 地球的表面就开始出现了水 1 cooldown变凉 冷却 平息 冷静晒了一天的太阳之后 他喜欢在海水中凉快一下 afteradayinthesun helikedto inthesea 他的话平息了她的怒气 hiswords heranger cooldown cooleddown 2 appear 出现 似乎 是不及物动词当表示 似乎 好像 时是系动词 该词无被动语态 ourteacherappearedontvthismorning themanwhocameyesterdayappeared seemed lookedanhonestman 6 itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife 水会对于生命的发展起关键作用 这一点在当时并不太明显 用it做形式主语是因为that引导的从句较长 如果按照正常语序来安排的话就显得头重脚轻了 如 itisnowonderthathehaspassedtheexam itisquitenecessaryforustolearnenglishwell 7 thisproducedachainreaction whichmadeitpossibleforlifetodevelop chainreaction连锁反应makeitpossibleforlifetodevelop 使生命的发展成为可能makeit adj n forsb sth todosth 老师让他们容易地明白那个问题 theteacher madeiteasyforthemtounderstandthequestion 8 theyproducedyounggenerallybylayingeggs lay laid laid laying放 把 放在 产卵helaidhisbooksonthedesk 注意 lay laid laid laying 放置 产卵lie lay lain lying 躺 位于lie lied lied lying 说谎 thenaughtyboy tomethatthehenthat therejustnowhad twoeggsthedaybefore a laid laid laidb laid lay lainc lied laid laind lied lay laid d 9 theygavebirthtoyoungbabyanimals1 生 孩子 she sjustgivenbirthtoahealthybabygirl 她刚刚生了个健康的女婴 2 产生theextraordinaryexperiencegavebirthtohislatestnovel 这段奇特的经历促成了他的最新的一部小说的诞生 10 theyareputtingtoomuchcarbondioxideintotheatmosphere whichpreventsheatfromescapingfromtheearthintospace 他们把太多的二氧化碳释放到大气层中 这就是使得热量不能从地球上散发到太空中去 therewasnothingtopreventherfromdoingso wemustpreventthewaterfrombeingpolluted 归纳 prevent from的意思是 拓展 近义短语有 stop from阻止 干某事 keep from阻止 干某事 注意 prevent和stop后的from都可以省略 而keep from中的from则不能省略 如果省略了 其意义将发生改变 制止 阻止 使 不做某事 11 millionsofyearstocomewilldependonwhether dependonsb 依靠 相信某人dependonsth 取决于某物我们都靠你来做决定了 we llall tomakeadecision 明天是否能开校运会取决与天气 whethertoholdthesportsmeetingornotwill dependonyou dependontheweather 12 inone sturn轮到某人 接着whenitisinmyturn iamtooexcitedtospeak inturn依次 轮流byturns轮流13 unlikejohn tomdislikesplayingfootball 14 hedidn tworkhard thushewasfired i 根据下列各句句意及所给单词的首字母或汉语提示 写出该单词的正确形式 1 this 理论 helpstoexplainhowanimalscommunicatewitheachother 2 thefinalcostcouldbeasmuchasone dollars 3 31peoplehavebeeninjuredin 暴力的 incidentsthroughouttheday 练习坊 theory billion violent 4 acrossthe sealevelvariesbyhundredsoffeet 5 a n 原子 issosmallthatwecannotseeit 6 smokingis tohealth butsomepeoplecannotgetridofit 7 thebestwaytogetthat 二氧化碳 intotheatmosphereistowarmtheentireplanet globe atom harmful carbondioxide 8 thenewownershavetriedtogivetherestaurantamorefamily friendly 气氛 9 isakindofgasthatisnecessaryformostanimalsandplantstolive 10 iwassurprisedbythe 出席 ofsomanypeopleatthemeeting atmosphere oxygen presence ii 用括号中所给单词的适当形式填空 1 theshiprocked violent fromsidetoside causingmanypassengerstofeelseasick 2 thereisa fundament differenceinattitudebetweenthesetwopoliticians 3 itisgenerallyacceptedthatsmokingis harm toou