三年级难点知识汇总

三年级难点知识汇总

一，名词复数。

sheep—sheep fish---fishes box ---boxes bus---buses animal---animals

panda---pandas monkey---monkeys vegetable---vegetables noodle—noodles

注意：蔬菜，面条拼写单词时不加s，在句子中加s;

鸡，鱼有生命时是可数名词，变复数要加s/es,当鸡肉，鱼肉讲时是不可数名词，

不加s/es。

二，对应词（反义词）

long—short tall---short fat—thin in---out on---under big—small

三，短语。

how many how much on the farm at the zoo in a tree on a tree in the morning in the afternoon in the evening have breakfast have lunch have dinner

四，缩写。

is not = isn’t are not = aren’t let us= let’s can not=can’t it is= it’s I am=I’m

what is= what’s I will=I’ll I would= I’d do not= don’t does not= doesn’t

五，常用问答。

1，What’s this? It’s a sheep.

2.Is this a duck? Yes, it is./No, it isn’t.

3.Can a horse run? Yes, it can./No, it can’t.

4.What do you like? I like oranges.

5.What would you like? I’d like oranges, please.

6.Thanks. You are welcome.

7.Can I help you ? Yes, please.

8.Would you like some apples? Yes, please./ No,thanks.

9.How much is a book? Two yuan.

10.How much are three donuts? Six yuan.

11.What’s your favorite food? My favorite food is noodles.

六，辨析。

1. it s≠it’s its 它的。it’s 它是。

e.g It’s a cow, its tail is short.

2. in a tree.(外来的东西) On a tree.( 树本身的东西)

e.g Where does a bird live? In a tree.

3. How much is a book?

How much for a book?是同义句，可换用。