人教PEP版英语六下Unit 4Then and now课件2

Unit4 Then and now(B Lets try&talk )Review words:1.go cycling2.play badminton3.ice-skate4.dining hall5.grass.6.gym7.didnt/couldnt8.表示过去的时间短语表示过去的时间短语.Review sentences:There is/are.There was/were+主语主语+表示时间的过去短表示时间的过去短语。语。1.十年前这里有一个图书馆。2.去年这里有一些体育馆。3.上个月这里没有饭厅。Teaching aim:1.学生能理解对话大意，正确朗读课文。2.掌握核心句型：Before,I/He/She/was.。Now I/She/He am/is.3.会在情景中正确使用I/She/He did/didnt.before。Lets try.Lets talk:Can you think of some words about appearance（外貌），character（性格）and colors?appearance:short,tall,fat,thin,long hair,short hair,strong.character:quiet,active,kind,funny.colours:yellow,green,black,white,pinkdifferent 不同的不同的Lets talk:1.Now please watch the cartoon then read this dialogue and answer the follwing question.Question：How did Mike change?Answer:Before he liked pink,but now he doesnt like pink.Before,he was quiet,now hes very active in class.Before,I/She/He was.Now I/She/He am/is.1.以前我很矮，现在我很高。（short,tall）2.以前她很活泼，现在她很安静。（active,quiet.3.以前他很强壮，现在他很瘦。(strong,thin)Before,I/She/He liked.I/She/He didnt like.play badmintongo cyclingice-skateExercises:按要求填写单词。1.old (反义词)2.fun (形容词）3.quiet（对应词）4.couldt（完全形式）dont（完全形式）photos（同义词）newfunnyactivecould notdo notpictures二，按要求改写句型二，按要求改写句型 1.I liked pink before.（改为否定句）I didnt like pink before.2.I could ride my bike well.（改为否定句I couldt ride my bike well3.I go cycling every day.（用yesterday 代替 every day 改写句子）I went cycling yesterday.4.I was quiet before.（改为否定句）I was not quiet before.Summary:Before,I was quiet.Now I am very active in class.Before用于过去时态中，Now 用于一般现在时态。am/is 的过去式是was.另改为否定句时直接在was后面加not.(补充）：Before I liked pink.该句句中没有be动词，时态是过去时态，所以改为否定句时在主语后面加didnt/did not.Talk about your friends or family members.How did they change?wasnt tall/.had long hair/.hairdidnt wear glasses/.didnt like maths/.didnt like cars/.didnt like eggs/.