陈述句 (1)肯定句：是指用肯定的语气来陈述的句子，如： I m a student. She is a doctor. He works in a hospital. There are four fans in our classroom. He will eat lunch at 12:00. I watched TV yesterday e
冠词：不定冠词，定冠词种类： (1)不定冠词：a / an a unit / an uncle 元音开头的可数名词前用an : an egg / an apple / an orange / an eraser / an answer / an ID card / an alarm clock / an actor / an actre
be going to 1.be going to 表示将要发生的事或打算、计划、决定要做的事情。 2.肯定句：be going to +动词原形，如：Jim is going to play football. 否定句：be not going to +动词原形, 如：Jim is not going to
