1、八年級英語下冊八年級英語下冊 Unit 8 Have you read Treasure Island yet Unit 8 Have you read Treasure Island yet Section A 3Section A 3課件課件 ( (新版新版) )人教新目標版人教新目標版Read the following sentences we have seen.Have you read Little Women yet? Yes, I have./ No, I havent. Has Tina read Treasure Island yet? Yes, she has. She

2、 thinks its fantastic.Have you decided which book to write about yet?Yes, I have. Ive already finished reading it. It was really good.用法用法1. 表示過去發生或已經完成的某一動作表示過去發生或已經完成的某一動作 對現在造成的影響或結果。對現在造成的影響或結果。 e.g. Have you had your lunch yet? Yes, I have. Ive just had it. (現在現在 我不餓了。我不餓了。)2. 表示動作或狀態從過去某一時刻開始，

3、表示動作或狀態從過去某一時刻開始，一直延續到現在，而且可能還要繼續一直延續到現在，而且可能還要繼續下去。下去。e.g. I havent seen her these days. Ive known Bob for three years. Ive been at this school for over two years. 時間狀語時間狀語already, yet, just, ever, never, before構成構成現在完成時是由現在完成時是由“助動詞助動詞have / has+ 動動詞的過去分詞詞的過去分詞”構成的，規則動詞的過構成的，規則動詞的過去分詞構成與過去式相同，不規則動

4、詞去分詞構成與過去式相同，不規則動詞的過去分詞則需逐個記憶。的過去分詞則需逐個記憶。 動詞的過去式的變化和過去分詞的動詞的過去式的變化和過去分詞的變化并不完全相同。我們對它們作了一變化并不完全相同。我們對它們作了一個大致的分類。個大致的分類。 (注：例子中單詞的變注：例子中單詞的變化順序為：動詞原形化順序為：動詞原形 動詞的過去式動詞的過去式 動詞的過去分詞動詞的過去分詞)一、過去式和過去分詞的變化相同一、過去式和過去分詞的變化相同規則變化規則變化：1. 一般在動詞詞尾直接加一般在動詞詞尾直接加ed。如：。如： pick picked picked; wish wished wished; s

5、tay stayed stayed2. 以不發音的以不發音的e結尾的動詞后面加結尾的動詞后面加d。如：。如：like liked liked; hope hoped hoped; phone phoned phoned3. 以以“輔音字母輔音字母 + y”結尾的動詞，變結尾的動詞，變y為為i，再加再加-ed。如：。如： study studied studied; hurry hurried hurried; reply replied replied4. 詞尾只有一個輔音字母的重讀閉音節動詞尾只有一個輔音字母的重讀閉音節動詞，要雙寫輔音字母，再加詞，要雙寫輔音字母，再加-ed。如：。如：st

6、op stopped stopped; clap clapped clapped不規則變化：不規則變化：5. 以不變應萬變以不變應萬變。如：。如： let let let; put put put; read read read6. 若中間有雙寫若中間有雙寫e，則去掉一個，則去掉一個e，單詞，單詞末尾再加末尾再加t。如：。如： feel felt felt; keep kept kept; sleep slept slept7. 結尾的字母結尾的字母d變變t。如：。如： lend lent lent; build built built; send sent sent8. 變為以變為以-oug

7、ht或或-aught結尾結尾。如：。如： buy bought bought; bring brought brought; catch caught caught; teach taught taught句式句式1. 肯定句：主語肯定句：主語 + have / has + 過去分詞過去分詞 (+ 其他其他)2. 否定句：主語否定句：主語 + have / has + not + 過去過去 分詞分詞(+ 其他其他)3. 一般疑問句：一般疑問句：have/ has + 主語主語 + 過去過去 分詞分詞(+ 其他其他)4. 特殊疑問句特殊疑問句：1) 特殊疑問詞特殊疑問詞 (不是句子主語不是句子主

8、語) + have / has + 主語主語+過去分詞過去分詞 (+ 其他其他)2) 特殊疑問詞特殊疑問詞(是句子主語是句子主語)+have / has+ 過去分詞過去分詞(+ 其他其他)already和和yet都可以作為現在完成時的標都可以作為現在完成時的標志詞，但它們的用法不同。志詞，但它們的用法不同。already一般用于肯定句中一般用于肯定句中。如：。如： We have already cleaned up our classroom. 注意：注意：already用于疑問句中時通常表用于疑問句中時通常表示驚奇示驚奇。如：。如： Have you finished your homew

9、ork already? I cant believe it.yet一般用于疑問句和否定句中一般用于疑問句和否定句中。如：。如： Have you seen her yet? The bus hasnt come yet.1. Write the forms of the past tense and past participle: drink _ _ see _ _ find _ _ leave _ _ tell _ _drank drunksaw seenfound foundleft lefttold told Why is Mr. Yang still in the teachers

10、 office? Maybe he _ his work yet. A. doesnt finish B. hasnt finished C. havent finishedB 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.I have just d

11、runk some teaHave you found it3. A: Do you know when Tom is leaving? B: _. (already/ leave) A: When _? (leave) B: This morning.4. A: Is your sister going 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 par

12、ents 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. Sally _ (love) reading. In the morning she reads the newspaper and in the evening she reads books. She _ already _ (read) more than 100 different book

13、s. 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. loveshasreadwill be She _ (finish) reading a book about robots last week and _ (write) a book report about it next week for her French class. Eve

14、ry 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 read4c Complete the chart with information about you and your friend.A: What books have you already read?B: I have already read Tom Sawyer and Harry Potter.A: What

15、 do you think of them?B: Well, I think Harry Potter was exciting, but Tom Sawyer was a bit boring.YouYour friend CommentsBooks I have already readMovies I have already seenSongs I have already heard( )【2013廣西貴港廣西貴港】 Do you know the movie Lost in Thailand? Yes. I _ it twice. Its funny. A. saw B. see C. have seen D. will see C( )【2013黑龍江牡丹江黑龍江牡丹江】 Lunc