在英语中，不同时间发生的动作或存在的状态要用不同的动词形式来表现。tense时态Revision

RevisionFourkindsoftenses一般现在时simplepresenttense现在进行时PresentContinuous一般将来时simplefuturetense一般过去时simplepasttense

课前准备〔根据表格复习四种时态〕时态概念结构标志句型变换Therebe的形态一般疑问句否定句一般现在时现在进行时一般将来时一般过去时Wokinteams:Everyteamtalkaboutonekindoftense.

概念结构标志一般疑问句否定句Therebe的形态表示经常的或习惯性的动作、现在的状态、客观事实等。be动词的形态：is,am,are.实意动词的形态三单动词加s/es,非三单动词用原形never,seldom,sometimes,often,usually,always,everyday/week/year,twiceaweek,howoften等有be动词或情态动词将be动词或情态动词提前，没有be动词或情态动词在句前加助动词do/does,后面的动词保持原形(别忘了转换人称〕有be动词或情态动词直接在be动词或情态动词后面加not,没有be动词或情态动词在主语后加don’t/doesn’t,后面的动词保持原形Thereis/are〔造句〕一般现在时simplepresenttense

IgotoEnglishClubtwiceaweek.Myhairislong.Therearefourseasonsinayear.Jimgoestoswimmingonceaweek.

动词第三人称单数的构成：①直接加-s.②以s,x,ch,sh,结尾加-es.③以“辅音+y“结尾变y为i再加-es.help–helpsplay–playsteach–teachesfinish-finishescatch-catchesstudy–studiescarry–carriesfly-flies

1.Jimusually________(have)lunchathome.2.LiJun_______(be)twentyyearsoldthisyear.3.Howmanystudents________(be)thereinyourclass?4.MrWutoldusthatthemoon______(go)aroundtheearth.5.Myfather______________(notdo)morningexerciseseveryday.6.Shealways___________(wash)herclothesonSundays.7.--______yourbrother________(like)playingfootball?--No,he____________.8.Iwillstayathomeifit________(rain)tomorrow.练兵场:hasisaredoesn’tdowashesDoeslikedoesn’tgoesrainsGoodjob!Giveyouabeautifulrose!Thankyou!

概念结构标志一般疑问句否定句Therebe的形态现在进行时：PresentContinuous表示现在正在进行或目前仍在持续的的动作。bedoing(现在分词〕look,listen,now,atpresent,atthemoment,rightnow,It’s….o’clock,Whereis…,Bequiet，thesedays等直接将be动词提前〔注意转化人称〕直接在be动词后加notThereis/are……doing〔造句〕

现在分词的构成①直接加-ing.②以不发音字母e结尾的动词，去e加-ing.③以重读闭音节结尾的动词，末尾只有一个辅音字母，应双写这一字母，再加-ing.go–goingsee–seeingwrite–writingmake–making