人版英语八年级(下册)ppt课件.ppt
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1、Unit 8,Have you read Treasure Island yet?,一. 用法1. 表示过去发生或已经完成的某一动作 对现在造成的影响或结果。 Have you had your lunch yet? Yes, I have. Ive just had it. 2. 表示从过去某一时刻开始,一直延续到 现在的动作或状态。,现在完成时,They have lived here since 1996.,二. 现在完成时的构成及句式转换,现在完成时由“助动词 have / has + 动词的过去分词”构成。,1. 肯定句: 主语 + have / has + 过去分词 + 其他2.
2、否定句: 主语 + have / has + not + 过去分词 + 其他3. 一疑句: have / has + 主语 + 过去分词+ 其他,havent,hasnt,动词过去分词的变化和过去式的变化类似,分规则变化和不规则变化两种。,三. 动词过去分词的变化规则,1. 不规则变化 (课本137、138页),begin-began-begun let-let-let,know-knew-known eat-ate-eaten,stand-stood-stood come-came-come,2. 规则变化 1). 一般在动词词尾直接加ed。 pick picked picked wish
3、wished wished stay stayed stayed 2). 以不发音的e结尾的动词后面加d。 like liked liked; hope hoped hoped; phone phoned phoned,3). 以“辅音字母 + y”结尾的动词, 变y为i,再加-ed。 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。 stop stopped stopped clap clapped clapped,四. 现在完成时的标
4、志词,1. 常与 just, already, yet, ever, never, before, so far 等连用,强调动作的完成, 不强调动作的持续。,Have you ever been to Japan?,I have just finished my homework.,He has already taught me some English.,四. 现在完成时的标志词,2. for + 时间段, since + 时间点 , since + 时间段 ago, since + 一般过去时的句子。,They have stayed there since 1997.,I have
5、learned English for six years.,He has lived here since he was a child.,She has worked here since two years ago.,1._ two years,since和for填空,2._two years ago,3._last month,4._ 1999,5._ yesterday,6._ 5 oclock,7._ 4 hours,8._ 2 minutes ago,9._ we were children,10._ she left here,五. already和yet用法 already
6、“已经”,一般用于肯定句中, 放have/has后,过去分词前或句尾。 I have already read the book. Some visitors have come already. already用于疑问句中时通常表示惊奇。 Have you finished your homework already? I cant believe it., yet 用于疑问句中意为“已经”,用来询问 说话人期望发生的事情是否已经发生; 用于否定句中,意为“还”,表示说话人 期望发生的事情尚未发生。yet 通常放在句尾。 Have you seen her yet? I havent fou
7、nd my pen yet., already与yet的转换 含already的陈述句变为否定句或疑问句 时, 要把 already 变为 yet, 并放于句尾。 I have already read the book. I havent read the book yet. Have you read the book yet?,He has already gone home.,2. I have read this book before.,3. They have cooked dinner already.,4. I have just finished my homework.,
8、5. Mary has closed the window already.,1. Have you ever _(take) a train?,2. I _(have) my lunch and Im not hungry now.,3. We _(be) good friends since we met at school.,4. We cant find him anywhere. Perhaps he_ (go) home.,5. He _(read) the book before.,6. Mr. Green _(teach) us a lot about social studi
9、es since September.,taken,have had,have been,has gone,has read,has taught,Look at the pictures. Have you read these books?,Alice in Wonderland,Little Women,Look at the pictures. Have you read these books?,Treasure Island,Tom Sawyer,Look at the pictures. Have you read these books?,Oliver Twist,Robins
10、on Crusoe,Have you heard of these books? Check () the ones you know.,1a,_ Alice in Wonderland _ Little Women _ Treasure Island _ Olive Twist _ Robinson Crusoe _ Tom Sawyer,No,Yes,Yes,No,Yes,No,Its exciting.,Its wonderful.,Its fantastic.,Listen and complete the chart.,Treasure Island,Robinson Crusoe,
11、Little women,1b,A: Have you read Little Women yet? B: No, I havent. Have you? A: Yes, I have already read it. B: Whats it like? A: Its fantastic.,Practice the conversation. Then talk about the other books in 1a.,1c,1. Treasure Island Mark / Tina 2. Olive Twist Mark / Tina 3. Robinson Crusoe Mark / T
12、ina 4. Tom Sawyer Mark / Tina,Listen. Who has read these books? Circle the names.,2a,Listen again and write T for true and F for false.,1. Oliver Twist is about a boy who goes out to sea and finds an island full of treasures. 2. Robinson Crusoe is a classic. 3. Tina thinks that Treasure Island is a
13、fantastic book. 4. Tom Sawyer is about a boy who lives in the United Kingdom.,2b,F,F,T,T,be full of sth 装满了The bottle is full of water.,A: Has Tina read Treasure Island? B: Yes, she has. She thinks its fantastic. A: Whats it about? B: Its about,Use the information in 2a and 2b to talk about the book
14、s.,2c,Role-play conversation.,2d,A: Steve, have you decided yet which book to write about for English class? S: Yes, Little Women. Ive already finished reading it! A: Wow, youre fast! Whats it about? S: Its about four sisters growing up. It was really good, so I couldnt put it down. Which book did y
15、ou choose?,A: I chose Treasure Island, but I havent finished reading it yet. Im only on page 25. S: Have you at least read the back of the book to see what its about? A: Yes, I have. It looks interesting. S: You should hurry up. The book report is due in two weeks. A: Yes, I know. Ill read quickly.,
16、1. (be) due to do 预计做 The guests are due to arrive very soon. 2. due to + 代词/名词, “因为,由于” He didnt come here due to his illness.,1. in a hurry 介词短语, 匆匆忙忙地 She always has breakfast in a hurry. 2. no hurry, “不忙,不必着急” Thereisnohurry,sodoitslowly.,鲁滨逊漂流记由英国作家丹尼尔笛福所著。它是一部家喻户晓的现实主义回忆录式冒险小说。作者受一个苏格兰水手海上遇险的经
17、历启发写成的。 小说分三部分:第一部分写鲁滨逊初出茅庐,最初三次航海的经过及其在巴西经营种植园的情况;第二部分详细描述了主人公流落荒岛,独居28年的种种情景;第三部分简要交代了鲁滨逊回国后的命运及这个海岛未来的发展趋向。,Read the passage based on Robinson Crusoe. Then answer the questions.,1. What does Robinson Crusoe wait for?2. Why does Robinson Crusoe call the man Friday?,3a,When I first arrived on this
18、island, I had nothing. But Ive found the ship and made a small boat. Ive brought back many things I can use food and drink, tools, knives and guns. Although I have lost everything, I have not lost my life. So I will not give up and I will wait for another ship. I have already cut down trees and buil
19、t a house. I go out with my gun almost every day to kill animals and birds for food. Im even learning to grow fruit and vegetables.,A few weeks ago, I found the marks of another mans feet on the sand. Who else is on my island? How long have they been here? Not long after that, I saw some cannibals t
20、rying to kill two men from a broken ship. One of them died but the other ran towards my house. I helped him kill the cannibals. This man now lives with me and helps me. I named him Friday because that was the day I met him. He is smart and I have already taught him some English.,1. What does Robinso
21、n Crusoe wait for? 2. Why does Robinson Crusoe call the man Friday?,He waits for another ship.,Because he meets him on a Friday.,Read the passage again. Find words that have these meanings.,1. You can use these to shoot things: _2. Something you use to travel in the sea: _3. A piece of land in the m
22、iddle of the sea: _4. You can use these to cut things: _5. Signs left behind by someone or something: _,guns,ship,island,knives,marks,3b,Correct the sentences.,1. Robinson Crusoe arrived on the island with enough food and drink.2. Friday made a small boat.3. Robinson had some food and tools when he
23、first arrived on the island.,nothing.,Robinson made a small boat.,Robinson had nothing when he first arrived on the island.,3c,4. Robinson used the ship to build a house.5. Friday saw some marks of another mans feet on the beach.6. Robinson tried to kill the two men.,cut down trees to build a house.
24、,Robinson saw some marks of another mans feet on the beach.,Some cannibals tried to kill the two men.,Grammar Focus,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.,Use the words in brackets to complete t
25、he conversations.,Ive just drunk some tea,Have you found it yet,4a,3. 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 left,did he leave,She
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