2014年小学四年级英语六单元知识点
这篇,是常梦网特地为大家整理的2014年小学四年级英语六单元知识点,希望对大家有所帮助!
一、复数形式
sheep? sheep (绵羊) hen? hens(母鸡) lamb? lambs(羊羔)
goat? goats(山羊) cow? cows(奶牛) horse? horses(马)
goose? geese(鹅) foot? feet(脚) tooth? teeth(牙齿)
二、可数名词变复数的规则:
1、一般情况下,在单数名词词尾加“s”.如:
cat? cats dog? dogs book? books ruler? rulers
2、在以s, ss , x , sh , ch 结尾的名词后面加“es”,如:
box? boxes peach? peaches bus? buses class? classes
3、在以o结尾的单词后面加“es”,如:
tomato? tomatoes potato? potatoes
4、以元音字母加y结尾的名词,直接加“s”如:
boy? boys toy? toys day? days
以辅音字母加y结尾的名词,去掉y后加“ies”,如:
baby? babies lady? ladies butterfly ?butterflies
5、以f, fe结尾的名词,去掉f或fe后加“ves”,如:
shelf? shelves leaf? leaves knife? knives
三、I like…后面要加可数名词的复数形式或者不可数名词,如:四年级英语六单元知识点
I like apples . 我喜欢苹果。 I like chicken.我喜欢鸡肉。
四、特殊疑问句:What are these? What are those ? What are they?在回答时,都要用“They are…”
What is this ? What is that? What is it ? 在回答时都要用It’s a (an )…
一般疑问句:Are these …? Are those …? Are they…?的回答形式也都是一样的,肯定回答:Yes, they are. 否定回答:No, they aren’t.
一般疑问句:Is this a(an) …? Is that a(an ) …? Is it a(an)…?的回答形式也都是一样的,肯定回答:Yes, it is. 否定回答:No, it isn’t.
以上就是由常梦网为您提供的2014年小学四年级英语六单元知识点,希望您阅读愉快!