Lesson29-30（课件）新概念英语第一册

there be 句型用法口诀 there be句型有特点，主语放在be后面。 单数主语用____，复数主语要用____。 多个主语并列时，________记心间。 变否定，很简单，be后要把______添。 变问句，也不难，把____提到there前。 肯定句中用some，否定疑问换______。 is are 就近原则 not be any Which is the right key? Open the box. The box is open. adj. v. What must you do? The door isn't shut. Shut the door. ____ ____ ____ ____ adj. v. Shut the ________. Read, look and choose. Shut your handbag. Open your book. Read, look and choose. What's in the box？ an empty box empty the box adj. v. The box isn't empty. Empty the box. What must you do? The box is full. Empty the ________. What's in the box？ a clean blackboard clean the blackboard adj. v. What must you do? The window isn't clean. Clean the window. Clean the ________. 既是形容词也是动词 clean empty adj. & v. open shut 放在句首是__________词 be动词后是__________词 adj. v. 17 What must you do? This pencil isn't sharp. Sharpen the pencil. /ˈʃɑːpən/ Read this book. /riːd/ What must you do? Read this ________. Sweep the floor. What must you do? /swiːp/ The floor is dirty. Sweep the bedroom. Read, look and choose. Read the words. 1 sharpen 2 read 3 sweep √ open √ shut √ empty put on /ˈpʊt ɒn/ It's cold outside. take off /ˈteɪk ɒf/ It's hot outside. Put on your ______. Take off your ______. put on & take off 26 turn on /tɜːn ɒn/ turn off /tɜːn ɒf/ Turn on the ______. Turn off the ______. turn on & turn off 29 区别 turn on 和 open open 动作上的打开。 如开门、开窗、打开课本等； turn on 开启，启动的意思。 如水，电，煤气，无线电等； 反义词：shut 反义词：turn off 30 turn on/ open turn on turn on open turn on open 31 Read, look and choose. Put on your watch. Turn off the tap. Read, look and choose. Read, look and choose. Turn on the light. empty put on turn on read sharpen take off Which word is missing? Let's practice. ________ the case. Empty A Clean B Sweep C 37 ________ the knife. Sharpen A Clean B Sweep C 38 ________ the tap. Take off A Turn on B Sharpen C 39 ________ the tie. Shut A Turn on B Put on C 40 1. (Shut Empty) the door. 2. (Sweep Clean) the window. 3. (Read Sharpe