module 6 a trip to the zoo 语法要点 文本素材(外研版七年级上册).doc
2页Module 6 语法要点一般现在时的用法一、定义:一般现在时表示经常或习惯性的动作,也可表示现在的状态或主语具备的性格和能力例:(1)表示事物或人物的特征、状态The sky is blue. 天空是蓝色的2)表示经常性或习惯性的动作I get up at six every day. 我每天六点起床3)表示客观现实The earth goes around the sun. 地球绕着太阳转二、用法: 1.肯定句: 一般现在时中,没有be动词和情态动词,主语为第三人称单数(she, he, it )、单数可数名词、不可数名词的,动词要按规则加上s或es主语是复数可数名词的肯定句,动词用原形例:She(He, It ) likes fish. 她(他,它)喜欢鱼主语为第三人称单数) The table has four legs. 桌子有四条腿主语为单数可数名词) Water boils at 100 degrees Celsius. 水在100度沸腾主语为不可数名词)They go to school every day. 他们每天都去上学。
主语是复数可数名词的,动词用原形) 2.疑问句: (1)一般现在时中,句中有be动词(am, is, are )或情态动词 (may, can, must, should) 时,一般疑问句将be动词或情态动词放在句首由肯定句变为一般疑问句的步骤: a. 把be 动词(am, is, are )或情态动词(may, can, must, should)提前 b.大写和小写的转换,句首的第一个字母要大写 c.句末要加问号例:肯定句: She is a student. 疑问句:Is she a student? 肯定句: He can swim. 疑问句:Can he swim? 疑问句的回答:用什么问就用什么来回答 Is she a student? Yes, she is. Can you swim? Yes, I can. (2) 句中如果没有be动词(am, is, are )或情态动词(may, can, must, should)时,主语为第三人称单数(she, he, it )、单数可数名词、不可数名词的疑问句要用does 来提问即在句首加does,句子中原有动词用原形例:—Does he like Chinese? 他喜欢汉语吗? —Yes, he does. 是的,他喜欢(汉语)。
—Does a dog eat meat? 狗吃肉吗? —No, it doesn’t. 不,它不吃(肉) (3) 句中如果没有be动词(am, is, are )或情态动词(may, can, must, should)时,主语为复数可数名词的疑问句要用do来提问 Do you like monkeys? No, we don’t. Do students study English? Yes, they do. 3. 否定句:(1)句中有be动词(am, is, are )或情态动词(may, can, must, should)时,否定句在be动词和情态动词后加not, I am not a teacher. He can not fly. (2) 句中没有be动词(am, is, are )或情态动词(may, can, must, should)时,主语为第三人称单数的否定句,在动词原形前加does + not (doesn’t) He doesn’t like cats. (3)句中没有be动词(am, is, are )或情态动词(may, can, must, should)时,主语为复数可数名词的否定句,在动词原形前加do + not (don’t)。
They don’t go to school on Sundays. 动词+s的变化规则 1.一般情况下,直接加-s,如:cook-cooks, milk-milks 2.以s. x. sh. ch. o结尾,加-es,如:guess-guesses, wash-washes, watch-watches, go-goes 3.以“辅音字母+y”结尾,变y为i, 再加-es,如:study-studies 。





