Unit 8 Section A (Grammar Focus～4c) 课件- 2024-2025学年英语人教版八年级下册

Unit 8 Have you read Treasure Island yet? Section A (Grammar Focus~4c) 23002 Revision What classics have we learnt in this unit? Alice in Wonderland Treasure Island Robinson Crusoe Little Women Oliver Twist Tom Sawyer 23002 能学习并掌握现在完成时的用法。 1 能正确使用现在完成时描述已经发生的事情。 2 学习过程 学习总结 学习目标 23002 分组朗读并观察下列句子。 Have you read Little Women yet? Yes, I have./No, I haven't. Has Tina read Treasure Island yet? Yes, she has. She thinks it's fantastic. Have you decided which book to write about yet? Yes, I have. I've already finished reading it. It was really good. 学习总结 学习目标 学习过程 23002 1 组 2 组 3 组 4 组 Divide the whole class into 4 groups and each group discusses one question. Group 1：现在完成时的结构是什么？现在完成时的一般疑 问句的句式结构及其肯定、否定回答是什么？ Group 2：动词的过去分词的变化规则？ Group 3：yet与already在句子中的位置有什么区别？ Group 4：一般过去时和现在完成时在概念上有什么区别？ 学习总结 学习目标 学习过程 23002 目标一: 能学习并掌握现在完成时的用法 讨论时间过后，请第一、二、三组的同学派代表依次回答下面的问题，并欢迎其他组同学做补充。 Activity 1 Group 1：现在完成时的结构是什么？现在完成时的一般疑 问句的句式结构及其肯定、否定回答是什么？ Group 2：动词的过去分词的变化规则？ Group 3：yet与already在句子中的位置有什么区别？ 学习总结 学习目标 学习过程 23002 Tom is looking for his key. He can’t find it. He has lost his key. 概念：现在完成时表示在以前某个时间已经发生的行为或曾经做过的事情对目前有某种影响。 结构：have/has + 动词的过去分词 现在完成时的构成 学习总结 学习目标 学习过程 23002 Have you read Little Women yet? Yes, I have./No, I haven't. Has Tina read Treasure Island yet? Yes, she has. She thinks it's fantastic. Have you decided which book to write about yet? Yes, I have. I've already finished reading it. It was really good. 句式 结构 例句 一般疑问句 —Have/Has＋主语＋动词的过去分词＋其他? —Yes, ...have/has. /No, ...haven’t/hasn’t. —Has she taken the medicine? —Yes, she has./No, she hasn’t. 学习总结 学习目标 学习过程 23002 Have you read Little Women yet? Yes, I have./No, I haven't. Has Tina read Treasure Island yet? Yes, she has. She thinks it's fantastic. Have you decided which book to write about yet? Yes, I have. I've already finished reading it. It was really good. 动词的过去分词的变化规则 动词过去分词的构成有规则构成和不规则构成两类。规则动词过去分词的构成和其过去式的构成相同。 学习总结 学习目标 学习过程 23002 过去分词的规则变化 (1)一般动词，在词尾直接加“ ed ”。 work—worked—worked (2)以“ e ”结尾的动词，只在词尾加“ d ”。 　 live—lived—lived (3)以“辅音字母 + y ”结尾的动词，将“y” 变为 “i”，再加“ ed ”。 study—studied—studied (4)重读闭音节结尾，末尾只有一个辅音字母，先双写该辅音字母，再加“ ed ”。 drop—dropped—dropped 学习总结 学习目标 学习过程 23002 过去分词的不规则变化 eat- see- come- build- read- keep- write- find- have- be- tell- meet- leave- make- buy- go- built found told come gone left had read eaten bought written met made been kept seen 不规则动词的过去分词需要大家牢记。参见课本P136—137。 学习总结 学习目标 学习过程 23002 Have you read Little Women yet? Yes, I have./No, I haven't. Has Tina read Treasure Island yet? Yes, she has. She thinks it's fantastic. Have you decided which book to write about yet? Yes, I have. I've already finished reading it. It was really good. yet与already的用法区别 already “已经”, 常用于肯定句中。一般置于助动词have/has与过去分词之间, 也可以放在句末。 I have already seen the film. I have finished my homework already. 学习总结 学习目标 学习过程 23002 yet,在现在完成时句型中常置于句末。 1) “已经”, 常用在疑问句。Has Linda read the book yet? 2)“还, 仍然”, 常用于否定句。The bus hasn’t come yet. 【拓展】另外 just “刚刚”, 常用于肯定句中，一般置于助动词have / has与过去分词之间；而just now 则用于一般过去时。 I have just finished lunch. I finished lunch just now. 学习总结 学习目标 学习过程 23002 结论 词汇 意义 用法 just 刚刚，正好 常用于肯定句，放在have/has之后，过去分词之前 already 已经，早就…… 常用于肯定句，放在have/has之后，过去分词之前, 也可以放在句末。 yet 还（没），尚（未） 常用于疑问句或否定句，用于句末 学习总结 学习目标 学习过程 23002 Activity 2 Practice 4a Use the words in brackets to complete the conversations. 1. A: Would you like something to drink? B: No, thanks. ______________________. (just / drink some tea) 2. A: I heard you lost your key. ___________________________________? (find) B: No, not yet. 3. A: Do you know when Tom is leaving? B: ______________________. (already / leave) A: When _____________________? (leave) B: This morning. I’ve just drunk some tea Have you found it yet Tom/He has already left did he leave 学习总结 学习目标 学习过程 23002 4. A: Is your sister going to the movies with us tonight? B: No. _____________________________. (already/see the film) 5. A: What do your parents think about our plan? B: I ____________________________. (not / tell them / yet) She has already seen the film have not/haven’t told them yet 学习总结 学习目标 学习过程 23002 目标二: 能正确使用现在完成时描述已经发生的事情 Activity 1 请第四组派代表回答下列问题，并欢迎其他组同学做补充。 Group 4：一般过去时和现在完成时在概念上有什么区别？ 学习总结 学习目标 学习过程 23002 一般过去时和现在完成时的区别 Now Tom has found his key. He lost his key but now he has found it. Tom is looking for his key. He can’t find it. He has lost his key. 学习总结 学习目标 学习过程 23002 现在完成时 Tom has lost his key. He can’t get into the house. 此处的情境不关注丢钥匙的动作，只关注结果：Tom doesn’t have his key now. 一般过去时 Tom lost his key. He couldn’t get into the house. 此处的情境关注丢钥匙的动作，从句子中无法得知是否找到了钥匙。 学习总结 学习目标 学习过程 23002 时态 概念 常见的时间状语 例句 一般过去时 在过去某个时间发生的动作 yesterday, …ago, just now, last year等 It didn’t rain last week. Did you see Judy this morning? (it is now afternoon or evening) 现在完成时 过去发生或已经发生的动作对现在造成的影响 just, never, ever, so far, already, since…, for…等 It hasn’t rained this week. Have you seen Judy this morning? (it is still morning) 学习总结 学习目标 学习过程 23002 4b Fill in the blanks with the correct forms of the words in brackets. Activity 2 Sally _________ (love) reading. In the morning, she reads the newspaper and in the evening she reads books. She ________ already _________ (read) more than 100 different books! Her favorite kind of books is science fiction. She is interested in science and technology and loves to imagine what the world _______ (be) like in 50 years. She _______ (finish) reading a book about robots last week and _________ (write) a book report about it next week for her French class. Every time she is in the library, Sally looks at the many books she _____________ (not read) yet and she can’t wait to read them! loves has read will be finished will write has not read Practice 学习总结 学习目标 学习过程 23002 Activity 3 4c Pair work Complete the chart with information about you and a friend. A: What books have you already read? B: I have already read Tom Sawyer and Harry Potter. A: What do you think of them? B: Well, I think Harry Potter was exciting, but Tom Sawyer was a bit boring. You Your friend Comments Books I have already read Movies I have already seen Songs I have already heard 学习总结 学习目标 学习过程 23002 学习目标 通过本堂课的学习，你学到了什么？ 能正确使用现在完成时描述已经发生的事情。 1 能学习并掌握现在完成时的用法。 2 学习过程 学习目标 学习总结 23002 $$