1、Unit 1Can you play the guitar?单元语法专题单元语法专题Grammar Focus情态动词can的用法1情态动词概述情态动词是表示说话人的情绪、态度或语气的动词,其本身具有一定的词义,但是不能单独作句子的谓语,只能与行为动词原形一起构成句子的谓语。常见的情态动词有can,must,may,could,should,need等。2can的具体用法can意为“能;会”,表示能力。eg:Linda cant play the piano,but she can play the violin.琳达不会弹钢琴,但是她会拉小提琴。Can Lucy draw?露西会画画吗?表示
2、许可,意为“可以”,常用于口语中,这时与may同义。eg:Can/May I have a cup of tea,please?我可以喝一杯茶吗?3can的句式表现肯定句:主语can动词原形其他。eg:Mary can dance well.玛丽跳舞很棒。You can go to watch TV.你可以去看电视了。否定句:主语cant动词原形其他。eg:He cant play the guitar.他不会弹吉他。You cant pass the ball like this.你不能像这样传球。一般疑问句:Can主语动词原形其他?肯定回答:Yes,主语can.否定回答:No,主语cant
3、.eg:Can you sing an English song for us?你可以为我们唱一支英文歌曲吗?Yes,I can./No,I cant.好的,我可以。/不,我不能。【注意】肯定回答中用certainly,语气更肯定;否定回答中用sorry,语气则更委婉、客气。eg:Can you sing?你会唱歌吗?Certainly,I can./Sorry,I cant.我当然会。/很抱歉,我不会。特殊疑问句:特殊疑问词can主语动词原形其他?eg:What can your sister do?你的姐姐会什么?4can的巧记口诀表能用,要用can,陈述句里记特点;肯定can后加动原,否
4、定can后not连;疑问句,can提前;肯定回答“Yes,主语can”;否定回答“No,主语cant”记心间。一、单项选择。()1.Allens cousin can _ kung fu.Ado BdoesCto do()2._ you play the guitar?Yes,I _.ADo;can BCan;do CCan;canAC()3.Can you dance?_.But I can play chess.AYes,I can BNo,I dont CNo,I cant()4.Hello,Linda!You can _ a student in our school.Aare Bis
5、 CbeCC二、用括号内所给单词的适当形式填空。5I cant _(play)chess with you.I have too much homework to do.6Can your parents _(speak)English?Yes,they can.7What can your sister _(do)?8Jim _(can not)dance.playspeakdocant三、根据汉语意思完成下列句子。9你妹妹会游泳吗?_your sister_?10凯特会做什么?What _Kate_?11艾丽斯不会下象棋。Alice _chess.Canswimcandocant play12你会讲中文吗?不会。_you _Chinese?No,I _Canspeakcant四、按要求完成下列句子。13They can play basketball.(改为一般疑问句)_play basketball?14Can his grandparents sing?(作否定回答)No,they cantCan they15Alan can draw and dance.(改为否定句)Alan _draw _dance.16Bill and Jill can tell_stories(对画线部分提问)_Bill and Jill_?cantorWhat cando