PeriodThreeWordpower&Grammarandusage&Task重点词汇Thisisbecauselaughterstrengthenstheheartandthelungs.这是因为笑能增强心肺功能。strengthenvt.加强；增强；巩固strengthn.力量；力气；体力；强项；优势havethestrengthtodosth.有做某事的力气buildupone’sstrength增强体力strengthsandweaknesses优点和缺点(1)Ourfriendshiphassteadilystrengthenedsincethepreviousyears.从前几年开始，我们的友谊不断增强。(2)Tomakemembersofateamperformbetter，thetrainerfirstofallhastoknowtheirstrengthsandweaknesses.为了让一个队里的成员做得更好，教练首先要了解他们的优势和劣势。(3)Mikeusuallyrunseverymorningtobuilduphisstrength.迈克通常每天早上跑步来强身健体。(4)Hehasbeenbroughtintostrengthenthedefencebecauseofthestrengththatheisstrongandfast.(strong)因为他有身体壮和速度快的长处，所以被请来加强后卫力量。[单项填空](5)Tohispositioninthecountry，heappointedhisclosefriendHenryasheadofthetroops.A．strengthenB．sponsorC．clarifyD．switch答案A解析句意为：为了巩固他在这个国家的地位，他任命他的好朋友亨利作为军队的统领。strengthen加强，巩固；sponsor赞助；clarify澄清，使……清楚；switch转换，转化。Asyoulaugh，themusclesparticipatinginthelaughbecomeactive.当你笑的时候，参与笑的肌肉变得活跃起来。participatevi.参加，参与※participatein参加，参与participateinsth.withsb.和某人一起参与某事※participationn．参加，参与※participantn．参与者(1)Lastspring，Iwasfortunatetobechosentoparticipateinanexchangestudyprogram.去年春天，我有幸被选上参加一个交流学习的项目。(2)Besides，widerengagementwithparticipants(participate)requiresveryconsiderableresource.此外，参与者的广泛参与需要相当大的资源。(3)Theschemeaimstoencourageincreasedparticipation(participate)insportingactivities.这个方案旨在鼓励大众更多地参与体育活动。[巧学助记]根据口诀，区别不同的“参加”：加入组织join选，出席到场attend用；参加活动起作用，takepartin来闹场；和人一起来活动，joinsb.in来凑份；participate不及物，和in做伴来参加。[单项填空](4)Moststudentsatschoolhopethattheycanactivitiesthatappealtothemafterclassinsteadofjustdoingtheirhomework.(2018·射阳二中高二检测)A．applyforB．participateinC．sticktoD．focuson答案B解析句意为：大多数在校学生都希望课后能够参加自己喜爱的活动，而不只是写作业。applyfor申请；participatein参加；stickto坚持；focuson集中于。根据题意选B。Enjoyingafunnycomedyorreadingsomejokeswilldriveawayyournegativefeelingsandmakeyoufeelmuchbetter.欣赏一部搞笑的喜剧或读一些笑话会赶走你的负面情绪，让你感觉好很多。driveaway赶走；使离去；驱车离开driveoff开走；赶走；驱散；击退drivesb.＋adj.使人……drivesb.todosth.迫使/促使某人做某事(1)Thehunterguaranteedthathewoulddrivethewolfaway.这个猎人保证他会把狼赶走。(2)Manydefenderstookpartinthisbattleanddroveoffeachattack.很多防守队员参加了这次战斗并击退了每一次进攻。(3)ThedetectivewonderedwhathaddrivenChristinetophonehim.警探不明白是什么原因促使克里斯蒂娜打电话给他。[单项填空](4)Listentosomesoftmusic，foritcanallyouranger.A．getawayB．driveawayC．turnoffD．putoff答案B解析句意为：听一些轻柔的音乐吧，因为它能赶走你所有的愤怒。getaway离开；driveaway赶走；turnoff关闭；putoff延期。由句意可知选B项。Practisingistheonlywaytoguaranteeasuccessfulperformance.练习是保证演出成功的唯一方法。guaranteevt.&n．保证；担保※guaranteesb.against/from...保证某人免受……guaranteesth./todosth./that...保证/担保……guaranteesb.sth.向某人担保/保证某事beguaranteedtodosth.必定做某事※(be)underguarantee在保修期内(1)Consistent，hardworkwon’tguaranteeyo...
