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1、Unit2 Thisismysister. 七年级英语上册（浙江地区） 课时 SectionA(GrammarFocus3c) 单元同步语法精讲 be动词的变化：am或is变为are。 eg：Im a girl.我是一个女孩。 We are girls.我们是女孩。 可数名词的变化：可数名词单数变为复数时，要注意以下变化规则。 一般情况下词尾加s 。 eg：bookbooks书；penpens钢笔 以s，x，ch，sh结尾的词加es 。 eg：busbuses公共汽车；watchwatches手表 以o结尾的词加s 或es 。 eg：photophotos照片；tomatotomatoes土豆
2、 以辅音字母加y结尾的，将y变i，再加es 。 eg：familyfamilies家庭 以f或fe结尾的单词，将f或fe变为v，再加es 。 eg：leafleaves叶子；knifeknives刀子 一去：即名词前不定冠词a/an要去掉。 eg：This is a ruler.这是一把尺子。 These are rulers.这些是尺子。 一坚持：即原句中的形容词、定冠词the、副词、介词短语等保持不变。 eg：What color is the jacket？这件夹克衫是什么颜色？ What color are the jackets？这些夹克衫是什么颜色？ Who引导的特殊疑问句 Who
3、引导的特殊疑问句通常用来询问人的身份。常用句型“Who is人称代词 主格单数？/Who are人称代词主格复数？”。 【注意】其回答形式应为“人称代词主格is/are.”，不能回答为“It is/This is/That is/These are/Those are.”。 单元同步语法精练 一、语法填空基础训练。 1These are my _(friend) 2Who _(be) these girls? 3Its _(she) bike. 4 _(That) two boys are David and Dale. 5Are _(this) girls your friends? fri
4、ends are her Those these 6Is _(he) father a teacher? 7She and I _(be) good friends. 8Your fathers parents are your _(grandparent) 9This is _(I) sister. 10Who are _(it)? his are grandparents my they 二、按要求完成句子。 11That is my pen.(改为一般疑问句并作否定回答) _your pen? No，_ 12These are his rulers.(改为一般疑问句并作肯定回答) _his rulers? Yes，_ Is that it isnt Are these they are 13Theyre my sisters.(改为单数句) _my _ 14That is a black key.(改为复数句) _black _ 15Are those jackets？(改为单数句) _that_? 16Those are my_parents(对画线部分提问) _those? Shes sister Those are keys Is a jacket Who are
