高中英语 unit 4 astronomy：the science of the stars period 5 using language导学案新人教版必修3

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1、Unit4astronomy:thescienceofthestarsPeriod5UsingLanguage学习目标:1.培养快速查读的能力；2.体会科学探险之乐趣，引起学生对科学的热爱之情；3.了解构词法的基本知识；4.掌握重点词汇的的用法。学习重点：培养合作学习，自主学习的能力。学习难点：培养英语思维，快速获取信息和用英语表达的能力。预习案I.添加正确的前缀或后缀构成新词。v.n.directpermitimpressdigestprotectcooperatedirection_____、_______是名词的后缀n.n.artphysicschemistrybi

2、ologyscienceartist_______是名词的后缀n.adj.culturenationnatureoriginsocietyglobeuniverseagriculturemathematicscultural_________是形容词的后缀adj.n.presentviolentconfidentdifferentpresencepatient_________是名词的后缀adj.反义词certainfairpaidlikekinduncertain_____是形容词表反义的前缀II.重点短语完形1．cheer____________高兴起来；振作起来__

3、__________干杯2．now____________既然3.___________out爆发III.阅读AVisittotheMoon,完成下面短文。LastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceofg_________wouldchangethreetimesonourjourney.Thenwetookoff.Aswelefttheearth,Ibecameveryh_________.Graduallytheweightl__________.WhenIwasinspace,

4、itd__________.Wef_______weightlesslyinthecabinandIc____________.WhenIwasonthemoon,Iwassurprisedtofindoutevenwalkingneedslotsofpracticen______________gravitychanged.Thereturningoftheearthwasveryf_________.Wewereamazedtowatchfireb__________________ontheoutsideoftheship.探究案LanguagePoints1.La

5、stmonthIwasluckyenoughtohaveachancetomakeatripintospacewithmyfriendLiYanping,anastronomer.上个月我有幸得到一个机会同我的朋友，一位宇航员李彦平一道去太空旅行。enough的用法:1）用作代词：作主语或宾语。Youhavedonemorethanenough.你已做得够多了。Ihavehadenough.Thankyou.我吃的已经够多的了，谢谢。2）形容词作定语：enough用在名词前、后都可以。Ihaveenoughtimetodothework.Ihavetimeenoughto

6、dothework.我有足够的时间做此项工作。3）用作副词修饰形容词或副词表示程度:enough一般放在形容词或副词的后边。longenough,easyenough,fastenough,quicklyenough等。Theboyisoldenoughtogotoschool.这孩子到上学的年龄了。Hecouldn’trunquicklyenoughtocatchupwiththecat.他跑的速度太慢，追不上猫。4）用作副词修饰动词时也需放在动词之后。Themeatisnotcookedenough.肉炖得不够熟。2.Thenwewereoff.随后我们就启程了。be

7、off出发；动身（=setoff）；休息，不上班Sorry,Imustbeoffnow.抱歉，我得走了。Iamofftoday.我今天不用上班。Weareofftoday.今天我们不上班/今天我们不开张。与off相关的短语:see...off送行kickoff踢球shutoff关闭getoff下车takeoff脱下turnoff关闭payoff付清；还清jumpoff跳下giveoff散发showoff炫耀3....,wewerepushedbackintoourseatsbecauseweweretryingtoescape