Module5ALessoninaLab教学目标：(1)熟记学案中所列出的单词和短语。教学难点：Teachingdifficultpoints:1.Leadthestudentstotalkinclassactively;2.Dealwithsomedifficultlanguagepoints.tantpoints:comparativestructures教学重点：1.Encouragethestudentstotalkaboutscienceaswellassciencesubjects;2.Helpthestudentsmakesenseofthetwopassages;3.Helpthestudentsimprovetheirreadingability.话题ALessoninaLab(一堂实验课）功能Usingsequence(表达顺序）语法Degreesofcomparison(比较等级）教学过程：[核心单词]重点词汇及拓展1.contractvi.&n.收缩；（订）合约2.floatvi.漂浮3.expandvi.膨胀→expansionn.膨胀4.mixturen.混合物→mixv.混合5.electricityn.电→electricaladj.电的，和电有关的→electricadj.发电的，用电的6.reactionn.反应→reactvi.反应7.equipmentn.设备，装备→equipvt.装置8.astonishedadj.吃惊的；惊愕的→astonishingadj.令人吃惊的→astonishvt.惊讶，吃惊→astonishmentn.惊讶，惊奇9.aimn.&v.目标；以……为目标→aimlessadj.漫无目的的10.balancen.天平；平衡→balancedadj.平衡的重点短语1.reactwith与……反应2.add...to往……加入3.usedto过去常常4.beproudof因……而自豪5.besupposedto理应；应该6.put...inorder使……整齐；使……有条理7.keep...outof防止……进入；不让……靠近……重点句型1.Itishardtothinkofaworldwithoutmetals.很难想象一个没有金属的世界。2.Hereisatablewiththemetalsthatreactmostatthetop，andthemetalsthatreactleastatthebottom.这儿有一个图表，那些反应最强烈的金属在上部，反应最不强烈的在下部。3.Thecloseryouare,themoreyou’llsee.你靠得越近，你看到的就越多。【易混辨析】expand(使)(尺寸、数字或数量等)扩大，增加(活动量)，扩大(活动范围)extend延伸，延长(建筑或道路、时间等)，扩大(控制、影响力等)，伸展(手臂、腿等)spread把(物)铺开、张开，(疾病、感情、问题或火等)蔓延，(消息、思想等)流传，传播，扩展(使能覆盖大的面积)，张开(手臂、双腿等)stretch伸展，拉长，一般指由曲变直、由短变长的伸展，不是加长语境填词③Thefire________fromthefactorytothewarehousenearby.④Thepath________asfarasthehill.⑤Mybluesweaterhas________completelyoutofshape.⑥Metals________whentheyareheated.conclusionn．结论；结束[经典例句]Theauthorsofthestudynotedthattherewerelimitationstotheirconclusions.(2013·湖北·阅读理解E)该项研究的作者提到，他们的结论有一定的局限性。(1)cometo/arriveat/reach/drawaconclusion得出结论bring...toaconclusion使……结束inconclusion(＝toconclude)最后(一句话)(2)concludev．得出结论；断定；推断出；结束①Weconcludedthathewasagainstourplan.＝We____________thathewasagainstourplan.我们得出结论他反对我们的计划。②Inconclusion,I'dliketosayhowmuchIhaveenjoyedmyselftoday.＝____________，I'dliketosayhowmuchIhaveenjoyedmyselftoday.最后，我想说我今天过得很开心。答案①cametotheconclusion②Toconcludeaimn．[C]目标，目的；[U]瞄准v.瞄准，对准，目标在于[经典例句]Mostbusinessesseektomakeaprofit—thatis,theyaimtoachieveincomethatismorethanthecostsofoperatingthebusiness.大部分企业努力获取利润，也就是说，他们旨在获得超出企业运行花费的收入。(1)takeaimat...瞄准……，对准……withtheaimof...以期……，意在……(2)aim(sth)at...(把……)瞄准……aimtodosth/atdoingsth力争做到(3)beaimedat...目的是……，旨在……①ShewenttoLondon________findingajob.她去伦敦是为了找工作。②Heaimed(hisgun)________thebird,butdidnotfire.他(用枪)瞄准鸟，但没开枪。答案①withtheaimof②atreactvi.(化学)反应；起作用[经典例句]Theyreacttowhattheyseeandwhatyoudo.它们对自己看见的和你所做的作出反应。(1)reactagainst反对；反抗reactto对……作出反应，起反应reacton/upon对……产生影响reactwith与……产生化学反应(...
