小学英语陈述句一、陈述句的概念陈述句是用于陈述事实和观点的句子。陈述句包括肯定结构和否定结构，句末用句号。如：This is a desk. (肯定结构)He can sing and dance. (肯定结构)He doesn’t have a computer. (否定结构)There aren’t any pictures. (否定结构)二、肯定句变否定句的基本方法1. be 动词的否定式be 动词根据不同的人称和时态有不同的形式，在一般现在时中是 am , is , are 可用作联系动词，构成否定式时，一律在其后面加否定词 not .He is reading. --- He is not reading. They are from China. --- They are not from China.2. 情态动词的否定式情态动词的否定式是在其后面直接加 not . 如：I can swim. --- I can’t swim. He can dance. --- He can’t dance. You should go to school at seven. --- You shouldn’t go to school at seven.3. 实义动词的否定句实义动词变否定句时，要借助助动词 do , does，在一般现在时中用 do 或者 does 其句子结构为：主语+ don’t / doesn’t + 动词原形+其它例如： I like pop music. --- I don’t like pop music.He likes running. --- He doesn’t like running.She does her homework at home. --- She doesn’t do her homework at home.典型例题：1. My sister ______ moon cakes with eggs in them.A. don’t like B. doesn’t like C. doesn’t likes D. doesn’t liking 2. He often does his homework at home. 变为否定句_______________________________________________________________3 . He doesn ’ t goes to the zoo every Sunday.(改错题) （ ）_________A B C D 4. Does Li Lei likes sports? （判断正误）( )开心练习：一、将下列句子变为否定句，每空一词。1． This is a desk. This ________ a desk.2. Grandpa tells stories to us every evening.Grandpa ________ ________ stories to us every evening.3. He can draw pictures. He _______ draw pictures.4. He has a nice watch.He _______ _______ a nice watch.5. They do a lot of homework at school.They ________ ________ a lot of homework at school.6. You must play football here.You ________ play football here.7. They are having an English class.They _________ _________ an English class.8. Peter goes to the zoo once a year.Peter _________ _________ to the zoo once a year.开心突破：二、下面各句四处划线部分有一处是错误的，请指出并改正。1. He doesn ’ t the homework every day. ( )A B C D2. He doesn ’ t have some rice for supper. ( ) A B C D3. This coat are red. That coat is blue. ( ) A B C D4. He don ’ t go to school yesterday. ( )A B C D三、连词成句。1. playing , like , I , football_______________________________________________________2.aren’t , any , wall , the , pictures , there , on _______________________________________________________3. waiting , bus , for , the , we , are _______________________________________________________4. much , the , how , shirt , is _______________________________________________________
