人教版PEP小升初六年级下册英语第三章 句型第2讲句型之间的转换复习ppt课件.ppt

1、2020小升初专题复习课件 人教PEP 第三章 句型 第 讲 句型之间的转换 2 在英语中,各句子的句式在一定条件下可以 相互转换,小学阶段我们需要了解以下三种情况。 第三章 句型 考点一 常见肯定句变否定句 情况 变化结构 例句 句中有be动词时 be 动词+not She is a police officer. 她是警察。 She isnt a police officer. 她不是警察。 句中有情态动词 时,如“can, may, must, will, should”等 情态动词+not You should go home now. 你现在应该回家。 You shouldnt go

2、 home now. 你现在不应该回家。 句中无be动词、 情态动词时 在原句动词前 加助动词 “dont/doesnt/ didnt”,后面加 动词原形 He likes swimming. 他喜欢游泳。 He doesnt like swimming. 他不喜欢游泳。 第三章 句型 变否定,找“be”或“can”,找到“be”“can”后接 “not”;无“be”无“can”找动词,动词时态要看 清,动词前加“dont/doesnt/didnt”,后面动词用原 形。 【示例】【示例】 把肯定句改为否定句。 Lily speaks English very well. _ Lily does

3、nt speak English very well. 第三章 句型 (2019(2019安徽安庆安徽安庆) )He went to school yesterday. (改为否定句) He to school yesterday. didnt go 第三章 句型 考点二 陈述句变一般疑问句 用法 例句 有be动词、情态动词 时,把它们提到前面 I will go to Beijing next week. 下周我将要去北京。 Will you go to Beijing next week? 下周你将要去北京吗? 无be动词或情态动词 时,以助动词“do, does” 或“did”开头,原来

4、的动 词变为动词原形 They went to the park on Sunday. 他们星期日去公园了。 Did they go to the park on Sunday? 他们星期日去公园了吗? 第三章 句型 变一般疑问句,也要找“be”或“can”, 找到“be, can”要提前,句尾问号莫要忘; 无“be”无“can”借用“do/does/did”, 放到句首要大写,后面动词用原形。 第三章 句型 【示例】【示例】 改为一般疑问句。 This is my toy car. _ Is this your toy car? 第三章 句型 改为一般疑问句并作肯定和否定回答。 The bo

5、y can ride a bike now. _ _ Can the boy ride a bike now? Yes, he can. No,he cant. 第三章 句型 考点三 常见陈述句变一般疑问句 陈述句变特殊疑问句时,要根据回答选用 相应的疑问词或词组,后面再跟一般疑问 句句式。不同的提问所用的疑问词不同。 (见下表) 第三章 句型 疑问词或词组 用法 例句 what 提问事物、 事件等 I cleaned my room last weekend. What did you do last weekend? what colour 提问颜色 My bag is blue. Wha

6、t colour is your bag? when/what time 提问时间 Its half past eight. What time is it? what day 提问星期几 Its Monday.What day is it today? what size 提问尺码 My shirt is size M. What size is your shirt? why 提问原因 I was late for school again because my alarm clock didnt work. Why were you late for school again? wher

7、e 提问地点 My father is going to Changsha next week. Where is your father going next week? 第三章 句型 which 提问选择 I like this blue dress. Which dress do you like? who 提问人 She is my sister. Who is she? whose 提问主人 That is my shirt. Whose shirt is that? how 提问方式 I go to school on foot. How do you go to school?

8、how much 提问价格 This book is ten yuan. How much is this book? how many/much 提问数量 I can see five birds. How many birds can you see?There is some tea in the cup. How much tea is there in the cup? how long 提问长度/时间 The desk is 1.5 metres long. How long is the desk? 续表 第三章 句型 how often 提问频率 She is late for

9、 school once a week. How often is she late for school? how far 提问距离 Its 300 metres from my home to school. How far is it from your home to school? how big 提问多大 The apple is as big as a baseball. How big is the apple? how tall 提问身高 My brother is 1.75 m tall. How tall is your brother? how heavy 提问体重 M

10、y sister is 42 kg. How heavy is your sister? 续表 第三章 句型 变特殊疑问句,先把原句变一般,找准特殊疑问词, 放到句首并大写;画线部分要去掉,动词词组do代 替,时态人称要注意。 【示例示例】 对画线部分提问。 The children are flying kites in the park. _ Where are the children flying kites? 第三章 句型 (2019(2019安徽安庆安徽安庆) )对画线部分提问。 1.Im 1.78 metres tall. are you? 2.I am watching TV

11、now? are you now? How tall What doing 第三章 句型 【示例示例1 1】 ( ) nice weather it is! A.What B.How C.How a D.What a 【精析】此句为感叹句。“weather”为不可数名 词,意为“天气”,因此可排除选项C和D。再根据“what” 和“how”引导感叹句的结构: What+形容词+不可数名 词+主语+谓语!How+形容词/副词+主语+谓语!可以排除 选项B。 【答案】A A 第三章 句型 【针对性练习1】 ( ) tall boy he is! A.What B.How C.What a C 第三

12、章 句型 【示例2】 ( ) is the school from the park? Its about three kilometres away. A.How much B.How far C.How long 【精析】题目意思为“学校离公园有多 远?”“how much”用来提问“多少,多少 钱”;“how long”用来提问“多长”;“how far”用来提问“多远”。因此选项A和C都可排 除。 【答案】B B 第三章 句型 【针对性练习2】 ( ) is it today? Its Monday. A.What B.What day C.What date B 第三章 句型 【示例

13、示例3 3】 He does his homework in the afternoon. (改为否定句) He his homework in the afternoon. 【精析】阅读题干,句子中没有be动词和情态动词 且是一般现在时态,因此变否定句时,必须要加助动词 “dont”或“doesnt”;主语“he”是第三人称单数,因 此只能用“doesnt”,其后要加动词原形,即“does”要 还原为“do”。注意千万不要在原题中的“does”后 面直接加“not”,因为这里的“does”是实义动词 “做”,不是助动词。 【答案】doesnt do doesnt do 第三章 句型 【针对性练习3】 Ben (do) have any brothers or sisters. (填入单词的适当形式) doesnt