1、一般现在时讲解,定义、 结构1,句式变化2,含be动词的变化 、时间状语3,常见错误4,专项练习5,一般现在时是英语中应用最广泛的时态之一，是中考复习的重点。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 eart
2、h. 其结构按正常语序，即“主语+谓语+其它”,其句式变化可分为两种情况1)表示动作， 第一、二人称以及第三人称复数做主语的，变否定句须在动词前加助动词dont； 变一般疑问句须在句首加助动词do。E.g. They have lunch at 12:00. They dont have lunch at 12:00. Do they have lunch at 12:00?,2） 单三人称单数做主语的，变否定句须在动词前加助动词doesnt；变一般疑问句须在句首加助动词does。 E.g. Jenny speaks English very well. Jenny doesnt speak
3、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 isnt 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。,做题时常见错误如下： 一、be动词与行为动词同时出现在句子中 例：We are
4、 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。”,二、单三人称形式易出错 例：1 He plaies (play) football very well.2 Danny gos (go) to school at 7:10. 答案：1 plays 2 goes 解析：1以辅音字母加y结尾
5、的动词变单三人称形式才能把y换成i再加es；2与名词变复数不同，变单三人称形式以o结尾的词要加es. 三、在句式变换时易出错 例：1 Does Jenny has (has) a good friend?2 Brian doesnt lives (not live) in China. 答案：1 Does have 2 doesnt live 解析：单三人称做主语的一般现在时做句式变化时，可记住如下口诀：“见助动，用原形”。此口诀也可推广用于一般过去时态中。e.g. He didnt go home yesterday.幻灯片 1,四、对do的理解易出错 例：We dont (not do)
6、our homework in the afternoon. 答案：dont do 解析：do是一个比较难理解的词，它有三个含义: a)是所有行为动词的总称；b)是助动词，无实义；c)是一个具体的行为动词“做，干”。此句中给出的do指“做，干”，not指把此句变为否定句，故须在do前加助动词dont。 五、对主语的数判断有误 例： Li Ming with me are (be) in Beijing. 答案: is 解析:表面一看是“我和李明两个人在北京”，但with在此做伴随状语，不能做主语，故用is.另外，宾语从句中，从句部分若是表示客观真理，不管主句是何时态，从句都要用一般现在时；在时
7、间和条件状语从句中，主句表将来，从句要用一般现在时。,Lets correct: I goes to school at six every day. He dont like playing football. 3. They likes playing games. 4. Daming watchs TV in the evening. 5. Does he usually has a party? 6. What do they on Sunday? 7. Tony goes always to school at eight oclock. 8. What they eat in th
8、e party? 9. Lily haves lunch at school. 10. What do his parents usually gives him ?,go,doesnt,like,watches,have,do,has,give,Lets practise:,I speak English.2.We like maths.3.They go swimming on Sundays.4.He gets up very early.5.The panda eats bamboo.,1.将下列句子改成否定句，一般疑问句并回答：,I dont speak English.,Do yo
9、u speak English? Yes, I do/ No ,I dont.,We dont like maths.,Do you like maths? Yes, we do/ No , we dont.,They dont go swimming on Sundays.,Do they go swimming on Sundays? Yes ,they do/No , they dont.,He doesnt get up very early.,Does he get up very early? Yes, he does/ No, he doesnt.,The panda doesn
10、t eat bamboo.,Does the panda eat bamboo? Yes,it does/ No, it doesnt.,对下列句子画线部分提问：,I get up at six oclock.They usually go to the park on Sunday.The elephants like eating fruits.He sends two emails every week.5.I often make travel plans on the Internet.6.He has lunch at school.,When do you get up?,Wha
11、t do they usually do on Sunday?,What do the elephants like eating?,How many emails does he send every week?,How often does he send two emails?,What do you often do on the Internet?,Who has lunch at school?,Where does he have lunch?,1. We often _ (play) in the playground. 2. He _ (get) up at six oclo
12、ck. 3. _ you _ (brush) your teeth every morning? 4. What _ he usually_ (do) after school? 5. Danny_ (study) English, Chinese, Maths, Science and Art at school. 6. Mike sometimes _(go) to the park with his sister. 7. She _ (watch) TV with his parents every evening. 8._ Mike _(read) English every day?,用所给动词的正确形式及助动词填空,play,gets,Do brush,does do,studies,goes,watches,Does read,Lets write :,请你根据杰克的兴趣爱好，为杰克设想一个充满乐趣的 星期天，（包括早，中，晚）他都做了些什么。要求用 一般现在时来写 ，字数8-10句。,
