新人教PEP版四年级下册英语 Unit4第一课时 教学课件

1、Unit 4 At the farmPart A Lets talk& Lets play课前导入Free talkNew words单词卡carrot (名词)胡萝卜/ krt / 复数形式： carrots例句：I like carrots. 我喜欢胡萝卜。New words单词卡tomato (名词)西红柿/ tm:t / 复数形式： tomatoes例句：I like tomatoes very much. 我非常喜欢西红柿。练一练Whats missing?练一练Whats missing?练一练Whats missing?课文讲解Lets talk-看这些!这些是胡萝卜吗?-是的。

2、-哇!它们好大啊!-这些是什么?-它们是西红柿。-但是它们是黄色的!-尝一些!它们很好吃。-谢谢。好吃。Look at these！Are these carrots?Wow! Theyre so big!Yes, they are.What are these?Theyre tomatoes.But theyre yellow!Try some!Theyre good.Thanks.Yum.语法讲解Grammar Are these carrots?这些是胡萝卜吗? Yes, they are.是的。用法：此句是“Is this a carrot?”的复数形式; these意思是“这些”,是

3、this的复数形式; carrots是carrot的复数形式。回答时为了避免重复,一般不用these回答,多用they代指。语法讲解Grammar一般疑问句句型结构: Are+ these+可数名词的复数形式?肯定回答: Yes, they are.否定回答: No,they arent. 例句： Are these pens? 这些是钢笔吗? Yes, they are./No, they arent. 是的,它们是。/不,它们不是。语法讲解Grammar 含有实义动词的一般疑问句要借助于助动词do和does来构成,将其放到句首并大写。肯定回答用“Yes,主语 + do/does.”,否定回

4、答用“No,主语 + dont/doesnt.”。例句： Do you like apples? 你喜欢苹果吗? Yes, I do./No, I dont. 是的,我喜欢。/不,我不喜欢。拓展课文讲解Lets play-这些是什么?-它们是西红柿吗?-不是。-它们是苹果吗?-是的!What are these?Are they tomatoes?No.Are they apples?Yes!Group WorkWhat are these?Are these carrots? No.Are these tomatoes? Yes.Group WorkWhat are these?Are th

5、ese apples? No.Are these carrots? Yes.课堂练习一、单项选择。（ ）1.What are_? A.it B. these C.this（ ）2.Are they bananas? Yes,_. A. it is B. they are C. they arent（ ） 3.Are they _? A. tomato B. tomatoes C. tomatos（ ） 4.They are _. A. apple B. carrot C.apples BBBC课堂练习二、选择正确的中文翻译。（ ）1.Try some! A. 尝一些！ B. 看一些！（ ）2. They are tomatoes. A. 它们是土豆。 B. 它们是西红柿。（ ）3. I like carrots. A. 我喜欢胡萝卜。 B. 我喜欢兔子。（ ）4.What are these? A.这些是什么？ B.那些是什么？ABAA课堂练习三、连词成句。tomatoes Are these（?）_2. they Yes， are （.）_3. these at Look carrots（!）_are What these（？）_Are these tomatoes?Yes