人教版八级下英语第八单元第三课时课件

1、Unit 8Have you read Treasure Island yet?Section A Grammar focus-4cRevisionRead the following sentences we have seen.1：Have you read Little Women yet? Yes, I have./ No, I havent. 2：Has Tina read Treasure Island yet? Yes, she has. She thinks its fantastic.:3：Have you decided which book to write about

2、yet?Yes, I have. Ive already finished reading it. 现在完成时1：我们已经看过爱丽丝梦游仙境这部电影了。We have already seen Alice in Wonderland.2：这个女孩已经看过鲁滨逊漂流记这本书了。The girl has already read Robinson Cruson.3：他们都已经读过小妇人这本书了。They have already read Little Women. 4：我还没有完成数学作业。I havent finished math homework yet.5：她还没有读完金银岛这本书。Sh

3、e hasnt finished reading Treasure Island yet.6：我们的父母都还没有去过北京。Our parents havent gone to Beijing yet.7：你已经吃过早餐了吗？是的。Have you eaten breakfast yet? Yes, I have.8：这个女孩已经决定读雾都孤儿这本小说吗？不，还没有Has the girl decided to read Oliver Twist? No, she hasnt9：他们都曾经听说过这个故事吗？ 是的。Have they ever heard of the story? Yes, t

4、hey have.现在完成时态的构成：现在完成时是由“助动词have / has+ 动词的过去分词”构成的，规则动词的过去分词构成与过去式相同，不规则动词的过去分词则需逐个记忆。 动词的过去式的变化和过去分词的变化并不完全相同。我们对它们作了一个大致的分类。 (注：例子中单词的变化顺序为：动词原形 动词的过去式 动词的过去分词)一、过去式和过去分词的变化相同规则变化：1. 一般在动词词尾直接加ed。如： pick picked picked; wish wished wished; stay stayed stayed2. 以不发音的e结尾的动词后面加d。如：like liked liked;

5、 hope hoped hoped; phone phoned phoned3. 以“辅音字母 + y”结尾的动词，变y为i，再加-ed。如： study studied studied; hurry hurried hurried; reply replied replied4. 词尾只有一个辅音字母的重读闭音节动词，要双写辅音字母，再加-ed。如：stop stopped stopped; clap clapped clapped不规则变化：5. 以不变应万变。如： let let let; put put put; read read read6. 若中间有双写e，则去掉一个e，单词末尾

6、再加t。如： feel felt felt; keep kept kept; sleep slept slept7. 结尾的字母d变t。如： lend lent lent; build built built; send sent sent8. 变为以-ought或-aught结尾。如： buy bought bought; bring brought brought; catch caught caught; teach taught taught Exercises 4a Use the words in brackets to complete the conversations.1.

7、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.Ive just drunk some teaHave you found it yet3. A: Do you know when Tom is leaving? B: _. (already/ leave) A: When _? (leave) B: This morning.4. A: Is your sister go

8、ing to the movies with us tonight? B: No. _. (already/ see the film)He has already leftdid he leaveShe has already seen the film5. A: What do your parents think about our plan? B: I _. (not/ tell them/ yet)havent told them yet4b Fill in the blanks with the correct forms of the words in the brackets.

9、 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 y

10、ears. loveshasreadwill be 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 cant wait to read them.finishedwill writehasnt readDo you know the movie Lost in Thailand? Yes. I _ it twice. Its funny. A. saw B. see C. have seen D. will see 中考链接Lunch?No, thanks. I _. A. will eat B. am eating C. have eatenWhere is Tom? We cant find him anywhere.