SectionⅢGrammar-复习动词时态[语法初识]原句感知自主探究1.ALondonerhasmoredifficultyunderstandingaScotsmanfromGlasgowthanunderstandingaNewYorker.2．Someexpertsbelievethatthetwovarietiesaremovingclosertogether.3．Thisinternationaldimensionsuggeststhatinthefuture,therearegoingtobemany“Englishes”，notjusttwomainvarieties.4．UsersofEnglishwillbeabletounderstandeachother—wherevertheyare.5．ManyfactorshaveinfluencedAmericanpronunciationsincethefirstsettlersarrivedfourhundredyearsago.1.句1用了一般现在时态，表示经常或习惯性发生的动作，当主语为第三人称单数时，谓语动词用第三人称单数形式。2．句2用了现在进行时态，表示现阶段正在进行的动作，谓语动词的构成为be(am/is/are)＋doing。3．句3和句4用了将来时态，句3表示“有征兆或迹象会发生某事”，句4表示将要发生的动作或状态。4．句5用了现在完成时态，表示该动作发生在过去，持续到了现在，谓语动词的构成为have/has＋done。[语法剖析]语法点一四种时态的基本用法时态基本用法谓语构成一般现在时①现在经常或反复发生的动作或存在的状态；②主语的特征、性格、能力等do/does现在进行时表示现在或目前一段时间内正在进行的动作is/am/aredoing一般将来时表示现在看来即将发生的动作或存在的状态will/shalldo现在完成时①表示动作发生在过去，但对现在造成一定的影响或结果；②表示从过去开始持续到现在并有可能继续下去的动作或状态，往往与表示一段时间的状语连用have/hasdoneTherearebusestothestationeverytenminutes.每十分钟就有公共汽车去车站。Alltheclassmatesarereviewingthelessonintheclassroomnow.同学们正在教室里复习功课。Leaveshavestartedtochangecolour;itwillbeautumnsoon.树叶开始变色；秋天就要来了。HehastaughtChineseformorethan20years.他教中文已有20多年了。集中演练11－1.单句语法填空①Sofar,thefarmerhas_looked(look)forthemissinggoatforseveralhours.②Inthenextfewyears,therobotswill_replace(replace)humanbeingsinmanyways.③Mybrotherplays(play)footballquitewellnow,buthehasn't_played(notplay)itsincelastyear.④Iam_reading(read)thebook;Iwillfinishitinaweek.⑤Mybirthdayiscoming.Ishall_be(be)18yearsold.⑥Thefactisthatthosescientistsare_studying(study)thiskindofdiseasethesedays.⑦Sheleftschoolthreeyearsagoandhas_worked(work)asateachereversince.⑧Aforeignguestwill_give(give)usatalkinthehallthisafternoon,andyoumustattenditontime.⑨It'ssaidthatthetwoplanetsare_moving(move)closerandcloser,andthat'sthereasonwhysomanyearthquakesoccur.⑩Thiscoatcostsalotandtheclothwashes(wash)well.1－2.完成句子⑪Wewill_know_the_result_of_the_exam(将知道考试结果)tomorrow.⑫WhenIseeAliceinthestreet,shealwayssmiles_at_me(朝我微笑)．⑬Peterhas_been_ill_for_almost_a_month(生病近一个月了)．⑭Lookatthepicture.Thechildrenare_flying_kites(正在放风筝)inthepark.⑮Hehas_recently_joined(最近加入了)theboardofthecompany.语法点二四种时态的特殊用法1．一般现在时可表示客观事实或普遍真理。Thegeographyteachertoldustheearthmovesaroundthesun.地理老师告诉我们地球绕着太阳转。2．现在进行时与always,constantly,forever等频度副词连用时表示赞扬、批评、不满、惊奇等感情色彩。Heisalwaysthinkingofothers.他总是想着别人。Youarealwaysmakingthesamemistake.你总是犯同样的错误。3．一般将来时可表示客观预测或临时决定。Willwemeetaliensinthefuture?我们会在未来遇见外星人吗？—DoyouknowMr.Smithhascometoourtown?—No,Iwillgoandvisithimrightnow.——你知道史密斯先生来我们镇了吗？——不知道。我现在就去看他。4．使用现在完成时的特殊句型(1)“Itisthefirst/second...time＋从句”句型中的从句的谓语动词常使用现在完成时。ItisthefirsttimethatIhavevisitedthecity.这是我第一次参观这座城市...
