《复数whatarethese》PPT课件.ppt

1、可数名词复数,These, those, they What are these?,1.this（这）和that（那）在这个句型里是指示代名词的用法，用来代替单数的物品，而it可以用来代替this或that，无距离上的差别。 2.this和that也常做指示形容词，后面接单数的名词。如：This book is great.,3.如果谈论到的物品只有一件，须在物品名词前加上 “a” 或者 “an”。名词为子音开头加上 “a”，例：a ruler；a desk；a white board若为元音开头加上 “an”，例：an apple；an eraser；an elephant,一、以疑问词wh

2、at为首的疑问句及答句（单数）this is以及What is it? 没有缩写形式。,二、以疑问词what为首的疑问句及答句（复数）,1.these和those也常做指示形容词，后面接复数的名词。如：These books are great. 2.如果谈论到的物品不只有一件，须在物品名词后加上 “s”、“es”、“ies” 表示复数。,(一)根据提示，完成问语和答句例如：this / notebookA：What is this?B：This is a notebook. 或者It is a notebook.,1.that / markerA：What is that?B：That /

3、It is a marker. 2.it / eraserA：What is it?B：It is an eraser. 5.it / mapA：What is it?B：It is a map.,3.this / book bagA：What is this?B：It / This is a book bag. 4.that / watchA：What is that?B：That / It is a watch.,(二)根据提示，回答问题例如：What are these?（book）These / They are books.,1.What are these?（letter）Thes

4、e / They are letters. 2.What are those?（glass）Those / They are glasses.,3.What are they?（marker彩色笔；麦克笔）They are markers. 4.What are these?（cherry樱桃）These / They are cherries. 5.What are they?（watch）They are watches,以be动词为首的疑问句及答句(单数）,1.简答时，一律用 “it” 回答。2.肯定简答，it和is不可以缩写，只能写成Yes, it is.3.否定简答，除了No, it

5、 is not. 还可写成No,its not. 或者No, it isnt.,四、以be动词为首的疑问句及答句（复数）,1.简答时，一律用 “they”回答。2.肯定简答，they和are不可以缩写，只能写成Yes, they are.3.否定简答，除了No, they are not. 还可写成No,theyrenot. 或者No, theyarent.,例如：Is this a telephone? Yes,it is.Is that a desk? No,it is not. （缩写its not或it isnt亦可）,1.A：Is it a bag? B：Yes, it is. 2.

6、A：Is this a computer game? B：No, it isnt. No, its not.,3.A：Is that a map? B：Yes,it is. 4.A：Are they erasers? B：Yes,they are.,5.A：Are these letters? B：No,they arent. No, theyre not. 6.A：Are those note books? B：Yes, they are.,2.在be动词后面加上not，变成否定句。,3.否定句改疑问句时,可将not留在原位，也可移到句首，但是移到句首时，必须和be动词缩写，如isnt或ar

7、ent。（注意：am not没有缩写）,1.将be动词移到主词前面，加上问号，变成疑问句。,4.否定疑问句,否定疑问句和肯定疑问句的回答相同，皆根据事实回答Yes或No。例如：Are they books? 由图可知要回答：Yes, they are.,(四)根据提示，改写问题,1.It is a chair.（改成疑问句） Is it a chair? 2.These are watches.（改成否定句） These are not watches.,3.That is not a comic book.（改成疑问句） Is that not a comic book? 或: Isnt that a comic book? 4.They are c