情态动词有can(could),may(might),must,haveto,shall(should,will(would),dare(dared),need(needed),oughtto等他们的否定形式分别是:can-----can'tcould----couldn'tmay------maynotmight----mightnotmust------mustn'thaveto------don'thavetoshall-------shan'tshould-------shouldn'twill--------won'twould-------wouldn'tdare------darn'tneed------need'toughtto------oughtn'tto情态动词的情态是什么意思?情态动词有四类:①只做情态动词:must,can(could),may(might)……②可做情态动词又可做实义动词:need,dare,will③具有情态动词特征:have(had,has)to,usedto,oughtto④情态动词表猜测:一肯一否三不定(must一肯,cannot一否,may,might,could,三不定。)注:mustn't代表强烈禁止must表示主观,haveto表示客观。情态动词,be动词,助动词有什么区别be动词,情态动词,助动词do/does的用法区别及练习1.由连系am,is,are构成的句子:变一般疑问句时把am,is,are提到句子的前面,句尾用问号即可。变否定句时直接在am,is,are后面加not即可。例如:肯定句:Heisastudent.一般疑问句:Isheastudent?否定句:Heisnotastudent.画线提问:对he提问:Whoisastudent?对astudent提问:Whatishe?orWhatdoeshedo?2.由情态动词can,may,should等构成的句子:变一般疑问句时把can,may,提到句子的前面,句尾用问号即可.变否定句时直接在can,may,后面加not即可.例如:肯定句:Shecanswim.一般疑问句:Cansheswim?否定句:Shecannotswim.画线提问:对she提问:Whocanswim?对swim提问:Whatcanshedo?3.由行为动词构成的句子:需要加助词do或does.变一般疑问句时把do/does放在句子前面.变否定句时把don’t/doesn’t放在动词的前面。要注意观察动词的形式并对号入座。一般疑问句和否定句的动词三单式都要变回原型。play-----doplays-----does例如:肯定句:Theyplayfootballafterschool.Heplaysfootballafterschool.一般疑问句:Dotheyplayfootballafterschool?Doesheplayfootballafterschool?否定句:Theydon't(donot)playfootballafterschool.Hedoesn’t’playfootballafterschool.画线提问:对they/he提问:Whoplaysfootballafterschool?对playfootball提问:Whatdotheydoafterschool?Whatdoeshedoafterschool?对afterschool提问:Whendotheyplayfootball?Whendoesheplayfootball?
Won't
t to the king and asked to take his leave. But