小学三年级英语下册语法知识解读

1. 介词“on„” “in„”的短语

　　on the chair/in the pencil-box/in the desk/in the bag/in the sky

　　2. 特殊疑问句“where”“what”“who”的用法

　　①特殊疑问句“where”的用法：

　　Where is …? ----It‟s on…. / It‟s in….

　　②特殊疑问句“what”的用法：

　　What‟s on the table? — A plate of cakes.

　　③特殊疑问句“who”的用法：.

　　Who is he/she? He/ She is….

　　They are brother and sister.

　　当不知道是谁时，人称代词用it:

　　Who is it? ----- It‟s me.

　　3. 感叹句用what和how： what修饰名词;how修饰形容词

　　How nice on a ship! How nice!

　　What a fine day! What a big cake!

　　4.let’s 句型：

　　let‟s =let us

　　Let‟s make a blouse/vest.

　　Let‟s run a race. /Let‟s play games.

　　Let‟s ride it.

　　Let‟s give her nice things.

　　Let‟s sing“Happy Birthday to You”.

　　Let‟s count the candles.

　　Let me help you.

　　Let me open/close the door.

　　Let me get the apples/pears.

　　Let‟s go home.

　　5. can句型：

　　We can‟t let him in.

　　She can’t swim.

　　I can‟t find/see….

　　Can she swim? Yes, she can. / No, she can’t.

　　Can you make cakes? Yes, I can. / No, I can‟t.

　　Can you fly it? —Of course，I can.

　　6.主语是单数第三人称，谓语动词加“s”：

　　look like 看起来像

　　She looks like Steve.

　　Steve is Eve’s brother.

　　I like him, and he likes me.

　　7.“have”的用法：

　　①“have”表示“有”

　　I have a kite/ a new bike.

　　We have some nice things for you.

　　②“have”表示“吃”

　　Have a coke/an apple. —Yes, thank you./ No, thanks.

　　Please have the cake. —Thank you.

　　Let‟s have the good things.

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