2017版高考英语新课标版《核按钮考点突破》课件2017选修九unit2

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1、选修九Unit2Sailingtheoceans1.课前自测2.课堂学案词汇接龙1._______(vi.计算；估计)→_______(n.估计；计算)2._______(vt.离开；出发；去世)→_______(n.出发；离开)3._______(adj.安全的；可靠的)→_______(n.安全；保护；保障)4._______(vt.&vi.提到；参考；涉及)→_______(n.参考书；提及；查阅)5.______(vt.勘查；探究)→_______(n.探测；探险)→_______(n.探险家；勘探者)6.______

2、_(adj.紧张的；拉紧的vt.变得紧张；使拉紧n.时态)→_______(n.紧张；不安；张力)7._______(vt.挨饿；饿死)→_______(n.挨饿；饿死)→_______(adj.饥饿的；很饿的)课前自测Key:1.reckon；reckoning2.depart;departure3.secure；security4.refer;reference5.explore；exploration；explorer6.tense；tension7.starve;starvation;starving/starved词

3、汇接龙8._______(vi.&vt.幸存；生还；幸免于)→_______(n.幸存；生存)→_______(n.幸存者；遗物)9._______(vi.单一化；简单化)→_______(adj.简单的；单纯的)→_______(adv.简单地；朴素地；仅仅)10._______(n.仁慈；宽恕；怜悯)→_______(adj.仁慈的；宽恕的)→_______(adj.冷酷无情的；残忍的)Key:8.survive;survival;survivor9.simplify;simple;simply10.mercy;merci

4、ful;merciless词块互译1.使确定一艘船的位置成为可能____________toplotaship’sposition2.算出它们的纬度____________theirlatitude3.________________________observethecloudsoverislands4.通过颜色和气味来判断________________________5.________________________identifythepositionofastream6.在水里前进_________________

5、_______7.________________________setastraightcourse8.________________________it’seasiertohandle9.减少犯错误的可能性____________tomakemistakes10.使计算更精确makethecalculations____________Key:1.makeitpossible2.workout3.观察岛屿上空的云朵4.tellbythecolourandsmell5.确认小溪的流向6.advancethroughthew

6、ater7.制定一条笔直的航线8.操作起来更容易9.reducethetendency10.moreprecise句型补全1.Wemaywellwonderhowseamenexploredtheoceansbeforelatitudeandlongitude________plotaship’spositiononamap.我们可能很想知道，在经纬度被用来在地图上确定船只位置之前，海员们是如何探索海洋的。(makeit＋adj.＋todo句型)2.Thisseems________thefirstandmostusefulf

7、ormofexplorationwhichcarriedtheminimumamountofrisk.这似乎是最早的、最有用的也是风险最小的探险方式。(seem＋不定式)3.Itsshortcomingwas________itstillusedthemovingshipasoneofthe________pointsofreference.它的缺点是它仍然使用移动船舶作为固定参照点。(表语从句；非谓语动词作定语)Key:1.madeitpossibleto2.tohavebeen3.that;fixed句型补全4.Allth

8、etimethecaptaintriedtopreserveourgoodspiritsbytellingstoriesandtalkinghopefullyabout________whenwegotbacktoEngland.船长一直试图让我们保持良好的精神状态，他给我们