一般现在时是英语中应用最广泛的时态之一,是初中英语语法重点。它表示
1)经常性、习惯性的动作或存在的状态。e.g. I go to school on foot. He is very busy now.
2)表示主语的特征、性格、能力、爱好等。e.g. He can swim. I work hard. I like watching TV.
3)表示客观真理 e.g. There are seven days in a week. The moon moves round the earth.
其结构按正常语序,即“主语+谓语+其它,有时为了起强调作用,时间状语也可提前.
其句式变化可分为两种情况
1)表示动作, 一般人称作主语的,变否定句须在动词前加助动词don’t;变一般疑问句须在句首加助动词do。 E.g. They have lunch at 12:00. They don’t have lunch at 12:00. Do they have lunch at 12:00?
2)单三人称做主语的,变否定句须在动词前加助动词doesn’t;变一般疑问句须在句首加助动词does。
E.g. Jenny speaks English very well.
Jenny doesn’t speak English very well.
Does Jenny speak English very well?
含有be动词的要在be上做变化.
E.g. Danny is a good student.
Danny isn’t a good student.
Is Danny a good student?
其时间状语为often、 usually、 always、 sometimes等频率副词,on Saturdays、 in the morning(afternoon evening) 、every day 等。
学生常见错误如下:
一、be动词与行为动词同时出现在句子中
例:We are plant (plant) the trees in spring.
答案:plant
解析:学生往往会用汉语的思维方式去翻译,就成了“我们是在春天植树。这是学习英语最忌讳的,要看语法是不是正确,在英语中,be是表状态,do是表动作,两种动词不能同时出现在句子中,可记住如下口诀:“英汉语言有差异,be 、do不能放一起,仔细琢磨细分析,语法千万要牢记。
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