1AAA型(原形→原形→原形)动词原过去式过去分词汉语意思形cutcutcut割shutshutshut关上letletlet让setsetset安置hithithit打splitsplitsplit劈开spitspit/spatspit/spat吐出quitquit/quittedquit/quitted放弃castcastcast抛forecasforecast/forecast/tforecastedforecasted预测broadcabroadcast/broadcast/stbroadcastedbroadcasted广播costcostcostburstburstburst花费bidbid/badebid/bidden突然发生ridrid/riddedrid/ridded...
英语基础概念:主句+从句=复合句1有关概念由一个主句和一个或一个以上从句构成的句子叫做复合句。所谓主句,就是在复合句中起统领作用的句子,它是全句的主体,通常可以独立存在;而从句则是复合句的一个句子成分,不能独立存在。如:You’llfeelbetterafteryoutakethepills.吃完药丸后你会感到好一些。Thepolicelearnedthathewasn’tthereatthattime.警察获知他那时不在场。这两句都是复合句,第一句的主句是You’llfeelbetter...
01AAA型(原形→原形→原形)动词原形过去式过去分词汉语意思cutcutcut割shutshutshut关上letletlet让setsetset安置hithithit打splitsplitsplit劈开spitspit/spatspit/spat吐出quitquit/quittedquit/quitted放弃castcastcast抛forecastforecast/forecastedforecast/forecasted预测广播broadcastbroadcast/broadcastedbroadcast/broadcasted花费突然发生costcostcost出价burstburstburst免除bidbid/badebid/bidden传播ridrid/rid...
1.todo结构题asksb.todosth.请(叫)某人做某事tellsb.todosth.请(叫)某人做某事helpsb.(to)dosth.协助做某事wantsb.todosth.想要做某事wishsb.todosth.希望做某事invitesb.todosth.约请某人做某事drivesb.todosth.驱使某人做某事expectsb.todosth.希冀某人做某事forbidsb.todosth.制止某人做某事forcesb.todosth.强迫某人做某事hopetodosth.希望做某事offertodosth.自动提出做某事plantodosth.方案做某事preparetodosth.预备...
一、常考语法点1.复杂长难句结构(复杂句中常有2个动词为标志)2.强调句(itisthatdonotonlybutalso)3.正话反说(潜台词)(soundlike/seemlookasthoughutopia)4.含插入语的句子(跳过不看)5.双重否定(负负得正原则)(hardlyunknown,donotless,nothingillegal)6.一些特殊标点,如引语常考。要不支持,要不批判,要不大背景。7.复杂句中的拆分的固定结构,如fromtobetweenand8.同位语9.指代关系10.逻辑主语、宾语11.省略句12.虚拟语气13....
1、螺纹钢重量计算公式:公式:直径mm×直径mm×0.00617×长度m例:螺纹钢Φ20mm(直径)×12m(长度)计算:20×20×0.00617×12=29.616kg2、钢管重量计算公式公式:(外径-壁厚)×壁厚mm×0.02466×长度m例:钢管114mm(外径)×4mm(壁厚)×6m(长度)计算:(114-4)×4×0.02466×6=65.102kg3、工字钢重量计算公式公式:0.00785×[hd+2t(b–d)+0.615(R2–r2)]公式说明:h=高,b=腿长,d=腰厚,t=平均腿厚,R=内弧半径,r=端弧...