内容正文:
第2讲 7A U1-U2期中语法复习
【知识积累】
知识点1:含有be动词的一般现在时
含有be动词的一般现在时一般“表示事物或人物的特征、状态”。
The sky is blue.
He is very tall.
(1)be 动词的选择
be动词的选择通常根据句子的主语来,一般遵循 “我是am,你是are,is跟着她他它,复数一律都用are”的原则;
【注意】
①there/ here be句型,be动词的确定遵循“就近原则”;
②动名词做主语,动词用“三单”;
③A and B,主语是复数;
Tom and Millie (be)playing football together. are
④A with B,主语是A;
Tom with Millie (be)playing football together. is
The boy with glasses (be)from China. is
⑤everyone等不定代词做主语,动词用“三单”;
Everyone in the classroom (be)from Changzhou. is
⑥可数名词单数、不可数名词、单个人名等, 动词用“三单”;
Water (be)useful. is
The little girl in red (be)my sister. is
⑦pair做主语时,后动词形式由pair的单复数来决定
How much (be)this pair of shoes? is
There (be)two pairs of glasses on the desk.are
⑧可以做主语的特殊疑问词who, what和which也相当于第三人称单数;
-Which (be)your brother? is
-The one in black.
(2)句型转换
否定句:主语+ be + not +其它.
He is not a worker.
一般疑问句:Be +主语+其它?
-Are you a student? -Yes.