高中英语 Unit 5 Revealing nature预习 新知早知道学案 外研版选择性必修第一册-外研版高二选择性必修第一册英语学案

Unit 5 Revealing natureⅠ.匹配词义a．给下列单词选择正确的汉语意思。( )1.seed A．v.产生，创造( )2.centimetre B．v.责怪，指责；把……归咎于( )3.generate C．n.种子，籽( )4.blame D．adj.原始的，低等的( )5.primitive E．n.厘米[答案] 1－5 CEABDb．给下列短语选择正确的汉语意思。( )1.be to blame A．是耻辱，是丢脸的事( )2.adapt to B．源于……的，原产于……( )3.be a disgrace C．适用于( )4.be native to D．导致( )5.lead to E．该受责备[答案] 1－5 ECABDⅡ.默写单词1．distant adj.遥远的2．sample n．样本3．suspect v．猜想，怀疑4．ancestor n．祖先5．goat n．山羊6．characteristic n．特征，特性7．decline v．减少8．root n．根9．detect v．发现，察觉(尤指不易觉察到的事物)10．link v．把……联系起来；连接Ⅰ.语境填空detect；generate；decline；primitive；centimetre；link；blame；characteristic；sample；root1．The length of this pencil is seventeen centimetres.2．What do we know about the bonds that link them?3．They found a primitive tool in the mountain.4．I have no one to blame but myself for what I have done.5．The US investment bank thinks prices will decline until well into next year before recovering in the second half of 2009.6．Genes determine the characteristics of every living thing.7．For security reason，we have generated a complicated password for you.18．The shipment does not check with the sample.9．This is an instrument that can detect small amounts of radiation.10．The root of this dead tree has been gnawed away by ants.Ⅱ.语法填空之派生词1．Can you distinguish the objects in the distance(distant)?2．The police will keep an eye open for the suspected(suspect) terrorists.3．I like seeded/seedless(seed) grapes.4．This is her ancestral(ancestor) home.5．We'll explore new methods of income generation(generate)．6．None of us is entirely blameless(blame) in this matter.7．I'm afraid something have...