shallР主语+ shall + 动词原形Р主语+ shall + not + 动词原形РshouldР主语+ should + 动词原形Р主语+ should + not + 动词原形РmustР主语+ must + 动词原形Р主语+ must + not + 动词原形Рhave(has)toР主语+ have(has)to + 动词原形Р主语+ don’t(doesn’t)+Р have(has)to + 动词原形Рhad betterР主语+ had better + 动词原形Р主语+ had better + not + 动词原形Р情态动词Р疑问句Р肯定回答Р否定回答РcanРCan + 主语+动词原形?РYes, ~ can.РNo, ~ can’t.РmayРMay + 主语+动词原形?РYes, ~ may. / Sure.РNo, ~ may not.РshallРShall + 主语+动词原形?РYes, please. / All right.РNo, let’s not.РshouldРShould +主语+动词原形?РYes, ~ should.РNo, ~ shouldn’t.РmustРMust + 主语+动词原形?РYes, ~ must.РNo, ~ needn’t.Рhave(has)toРDo (does)+主语+ Рhave to +动词原形?РYes, ~ do (does).РNo, ~don’t (doesn’t).Рhad betterР/Р/Р/Р三、名词复数规则Р1.一般情况下,直接加-s,如:book-books, bag-bags, cat-cats, bed-bedsР2.以s. x. sh. ch结尾,加-es,如:bus-buses, box-boxes, brush-brushes, watch-watches
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