三年级英语下册语法知识解读

如题所述

第1个回答  2023-03-10
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.