Lesson29-30（课件）新概念英语第一册

What must I do? window case book coat tie shirt watch shoes stereo TV light tap floor kitchen living room fridge blackboard electric cooker table shelf cupboard cup glass box book newspaper magazine knife knives wardrobe end table dressing table clothes How must Amy clean the floor? Sweep the floor. Lesson 29 Come in, Amy. Mrs. Jones Amy untidy: 在一个形容词的前面加上前缀“un”能够把这个形容词构成它的反义词 tidy untidy clean unclean busy unbusy happy unhappy ______ must 1.must表示必须，应该；它的否定回答用needn’t/don’t have to. A: Must I finish the work before six？ B: Yes, you must. No, you needn’t/don’t have to. 2.must 的否定形式must not，表禁止、绝对不能。 You mustn’t get to school late. You mustn’t smoke in the room. 3.must后面动词跟原形。 情态动词：表示说话人对某一动作或状态的态度，或表示主观设 想。 1.She must at home. (be) 2.When must Amy ____ the floor? (sweep) 3.— Must they clean the classroom now? — No, they A can’t B needn’t C don’t D mustn’t be sweep B What must Amy do？ open/shut: turn on/turn off: the stereo! the tap! magazine light book turn on/turn off turn on/turn off turn on/turn off open/shut open/shut 一般是指关上或者切断电源或水龙头 一般是指一个物件的门或者封面之类的东西 Then put these clothes in the wardrobe. Put some sugar in the coffee. A B C D E E D A B C Open…and air… Then put…in… 1) 2) 3) Then make… 4) Dust … 5) Sweep… What have we learned? Key phrases: 穿上： 脱掉： 开（灯）： 关（灯）： put on take off turn on turn off 情态动词： must 后接动词原形 句型： 祈使句 Homework 1 .背诵课文Lesson29 2.听写单词 3. 完成练习册 $