Unit 4 What’s This?Part ALead-in点头 yes, 摇头 no ； look, look 瞧一瞧。小雨点儿蹦蹦跳， umbrella 很重要。vegetable 营养好，身体健康少不了。water 经常喝，身体棒又好。黄色的盒子， yellow box.zoo, zoo 动物园，保护动物人人夸。New words(=it is) 它是Look, it's a book. 一；一个It is a banana.不；不是Is she your teacher? No, she isn't. 它It is a door. (=is not) 不是—Is it a key? —No, it isn’t.看Look, it's a panda! 那；那个That is a bird. 是；是的—Is it a cat? —Yes, it is.New wordsLet’s talkMom, what’s this?It’s a cat.Is that a cat?No, it isn’t. it’s a tiger.Look! What’s that?Is that a lion?Yes, it is.Language points1. Mom, what's this? 妈妈，这是什么？ 当想知道近处的物品是什么时，可以用“ What's this?” ，其答语为“ It's +a/an+ 名词 .” 。这是什么？它是一顶帽子。—What's this?—It's a cap. 当想知道远处的物品是什么时，可以用“ What's that?” 。那是什么？它是一只熊猫。—What's that? —It's a panda. 2. Is this a cat? 这是一只猫吗？ 本句是一个确认近处是否是某物的一般疑问句，可以直接用“ Yes” 或“ No”来回答。这是你的书吗 ?是的，它是。 / 不，它不是。—Is this your book? —Yes, it is. / No, it isn't. 3. No, it isn't. 不，它不是。isn't 等于 is not ，表示“不是”。这不是梨。It isn't a pear. 到目前为止，我们学过的缩写形式有：I'm=I am it's=it isisn't=is not what's=what isLet's sayThis is a pear. That’s an apple.What’s this?It’s an egg.Language pointsThis is a pear. That's an apple. this 和 that 是指示代词，用来指代单数名词。指代距离说话人近的人或物用 this ；指代距离说话人远的人或物用 that 。这是一把椅子，那是一张桌子。This is a chair and that's a desk. an 是不定冠词，表示“一（人、事或物）”。 an 用在以元音音素开头的单数可数名词前。 apple 以元音音素开头，所以表示“一个”要用 an 来修饰。一个橘子an orange Ask and answerA ： What's this/that?B ： It's a/an ...Play roles with your partnerA ： What's that?B ： It's a dog.A ： What's that?B ： It's a lion.A ： What's that?B ： It's a fish.Play a gameIs that a/an ...?Yes, it is./ No, it isn’t.Is that an apple?Play a game with your partnerYes, it is.Is that an orange?No, it isn’t.
