pep2013四年级下unit4复习资料.docx

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1、第四单元:一、复数形式sheep? sheep （绵羊）goat? goats （山羊）goose? geese（鹅）齿）hen? hens （母鸡）cow? cows （奶牛）foot? feet（脚）lamb? lambs（羊羔）horse? horses （马）tooth? teeth（牙二、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? rulers2、在以s, ss , x , sh , ch结尾的名词后面加“es，如:box? boxes peach? peaches bus? bus

2、es class? classes3、在以。结尾的单词后面加，如：tomato? tomatoes potato? potatoes4、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 ?butterflies5、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：I like叩

3、pies .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 arethey?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 Its a (an )一般疑问句：Are these ,? Are those ? Arethey ？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?