Unit 2 Section2 Grammar 课件2024-2025学年沪教牛津版英语七年级上册

Unit 2 School life Section 2 Exploring and applying rules 一般现在时 一.定义：示通常性、规律性，习惯性、真理性的动作或状态 二.构成：①动词原型 如：They like play the piano. ②第三人称单数（主语为第三人称单数） 如：He sings well. 三.第三人称单数的规则变化： ①一般情况: 加s，如：thinks, learns ②sh/ch/x/0/s结尾: 加es， 如：watches, miss--misses ③辅音字母+结尾：改y为i再加es， 如：studies, carries ④以o结尾：加es，如：does, goes ①表频率：always(总是), usually(通常),often(经常), sometimes(有时), seldom(极少), hardly(几乎不), never(从不) 如：He is always late. I usually go to school by bus. 注意：频率副词的位置（放在be动词，助动词，情态动 词的后面；放在实义动词的前面） 四.标志词 ②表次数：on Tuesdays(每个星期四), every day(每天), once a day(每天一次), twice a week(每周两次) three times a week(每周三次) 如：Tom plays basketball every Sunday. I watch TV twice a week. 注意：1.表次数：先说次数再说星期 2.3次及以上借助time的复数形式 3.表次数的短语，通常放句末 一、单项选择 1.Mandy likes playing badminton and she plays it ________. A. three time weeks B. three time a week C. three times a week D. three times week 2.The cook ________ for eight hours every day. A. working B. works C. worked D. to work 3.She ______ doing sports, so she ______ goes swimming in her free time. A. likes; often B. likes; hardly C. like; seldom D. like; always 表次数：先说次数再说星期 且3次及以上借助time的复数形式 主语为三单，动词要 用第三人称单数形式 主语为三单，动词要用第三人称单数形式； often是经常，喜欢运动，所以经常游泳 4.--- ________ Anna often late for school? --- No, she ________. A. Does; isn’t B. Is; isn’t C. Is; doesn’t D. Does; doesn’t 5.Ben ________ for school. He ________ up early. A. never late; gets always B. is never late; gets always C. is never late; always gets D. never lates; always gets late为形容词，形容词常与be动词连用；用什么提问就用什么回答 频率副词放be动词、情态动词、助动词的后面，放实义动词的前面 五.句型转换（改否定句） ①判断动词属性 1.若谓语动词为be动词、助动词或情态动词，直接在后面加not 如：Tina is a student.→Tina is not a student. Tom can play the guitar.→Tom can not play the guitar. 2.若谓语动词为实义动词，则借助do动词(do/does/did). 注意：借助了助动词后，后面的实义动词恢复原形 如：Bob likes playing chess.→Bob doesn’t like playing chess. 六.句型转换（改一般疑问句） ①判断动词属性 1.若谓语动词为be动词、助动词或情态动词，直接提前到 主语前面 如：Tina is a student.→Is Tina a student? Tom can play the guitar.→Can Tom play the guitar? 2.若谓语动词为实义动词，则借助do动词(do/does/did). 注意：借助了助动词后，后面的实义动词恢复原形 如：Bob likes playing chess.→Does Bob like playing chess? 七.句型转换（改特殊疑问句） ①选择特殊疑问词 ②判断动词属性 1.若谓语动词为be动词、助动词或情态动词，直接提前到 主语前面 如：Tom can play the guitar.→What can Tom do? 2.若谓语动词为实义动词，则借助do动词(do/does/did). 注意：借助了助动词后，后面的实义动词恢复原形 如：Bob likes playing chess.→What does Bob like doing? 随堂小练：一.句型转换 1. Susan is a student. 否定句： 一般疑问句： 特殊疑问句： 2. I can play the guitar. 否定句： 一般疑问句： 特殊疑问句： Susan is not a student. Is Susan a student? Who is a student? I can not play the guitar. Can you play the guitar? What can you do? 随堂小练：句型转换 3. Lily eats a piece of bread for breakfast. 否定句： 一般疑问句： 特殊疑问句： Lily doesn’t eat a piece of bread for breakfast. Does Lily eat a piece of bread for breakfast? What does Lily eat for breakfast? 注意事项 ①若主语为第一人称，转换为疑问句时，要将第一人称转换 为第二人称 如：I love watching movies.→Do you love watching movies? ②若句中含有some，转换为否定句和疑问句时，要变成any 如：Tom has some books.→Does Tom have any books? ③若句中含有and，转换为否定句和疑问句时，要变成or 如：Tina has an apple and a banana. →Does Tina have an apple or a banana? 随堂小练：句型转换 1. I love watching movies. 否定句： 一般疑问句： 特殊疑问句： 2. She has some new books. 否定句： 一般疑问句： 特殊疑问句： I don’t love watching movies. Do you love watching movies? What do you love? She has not any new books. Does she have any new books? What does she have? 随堂小练：句型转换 3. Lily eats a piece of bread and drink a cup of milk for breakfast. 否定句： 一般疑问句： 特殊疑问句： Lily doesn’t eat a piece of bread or a cup of milk for breakfast. Does Lily eat a piece of bread or a cup of milk for breakfast? What does Lily eat for breakfast? 综合练习: 一、用括号内所给单词的正确形式填空。 1.Everyone _____________ (say) she is a good student. 2.What _______ you always _______(do) on weekends? 3. _________Mike _________(read) English every day? 4.Tom usually_____________(watch)TV after school. 5. He_____________(like)_____________(watch) TV. says do Does watches likes do read watching Thank you $$