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2017春人教版八年级英语下册课件《Unit 8 Have you read Treasure Island yet Grammar Focus》.ppt

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1、Unit 8,Grammar focus,Revision,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 thinks its fantastic. Have you decided which book to write about yet? Yes, I have. Ive already finished reading i

2、t. It was really good.,Grammar,The Present Perfect with already, yet,1. Have you watered the plants yet? Yes, I have already watered them. 2. Have you finished your homework yet?Yes, I have already finished it. 3. Have you found your bike yet? Yes, I have already found it.,Present perfect,现在完成时:表示过去

3、发生或已经完成的某一动作对现在造成的影响或结果,或从过去开始一直延续到现在的动作或保存的状态。,现在完成时的构成: 现在完成时是由“助动词have / has + 动词的过去分词”构成。助动词要和主语的人称、数保持一致。 一般疑问句: have / has ?Yes, I have. No, I havent.Yes, she has. No, she hasnt.,have breakfast,Im not hungry now,moved here in 2004,I still live here,now,past,现在完成时,现在完成时态可用于表达刚刚做完某事或已经做完某事,常见的标志

4、词有already, yet等。下面我们一起看看这几个词的用法:(1) already意为 “已经”,常放在have / has和动词之间,通常用于肯定句中。如:They have already arrived at the hospital. 他们已经到达医院了。 already也可用于疑问句,表示期望得到肯定的回答或表示惊异,此时常放在句末。,(2) yet多用于否定句中,意为“还(没) ”;也常用于疑问句中,意为“现在,已经”。如:The sun has not risen yet. 太阳还没有升起。Has the man finished the work yet? 这个男人做完工作

5、了吗?,Dont worry about him. He has _ arrived at home safely. 2. Have you told him the news _? 3. I have _ eaten some rice. Now I am full.,yet already,already,yet,already,Practice Complete the sentences with the words in the box.,( ) Have you finished your homework _? No, not _.A. yet, already B. yet,

6、yet C. already, yet D. already, already 分析:此题应该选用B项。前面为疑问句,后面是否定回答,故两处空格均应该用yet 。,B,( ) - Has Jim _ cleaned his bedroom? - Yes, he has cleaned it _.A. just, yet B. already, just C. just, already D. / , already 分析:此题应该选用D项。前面为疑问句,一般不用 just / already提问,故A、B、C项都是错误的,后面是肯定结构,故应该用already。,D,( ) Jim, have

7、 you had your lunch _ ? Its only 10:30 in the morning .A. yet B. just now C. just D. already 分析:此题应该选用D项。前面为疑问句,但是从“Its only 10:30 in the morning .”中可以看出问话人非常惊讶,故应该用already连接。,D,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: 一般在动词词尾直接加ed。如:pick pick

8、ed picked; wish wished wished; stay stayed stayed 2. 以不发音的e结尾的动词后面加d。如: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。如:study studied studied; hurry hurried hurried; reply replied replied 4. 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

9、 clapped,不规则变化: 5. 以不变应万变。如:let let let; put put put; read read read 6. 若中间有双写e,则去掉一个e,单词末尾再加t。如:feel felt felt; keep kept kept;sleep slept slept,7. 结尾的字母d变t。如:lend lent lent; build built built; send sent sent 8. 变为以-ought或-aught结尾。如:buy bought bought; bring brought brought; catch caught caught; tea

10、ch taught taught,活学活用,1. Write the forms of the past tense and past participle:drink _ _ see _ _ find _ _ leave _ _ tell _ _,drank drunk,saw seen,found found,left left,told told,Why is Mr. Yang still in the teachers office?Maybe he _ his work yet.A. doesnt finishB. hasnt finished C. havent finished,

11、B,现在完成时: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,或从过去开始一直延续到现在的动作或保存的状态,强调的是现在的情况,不能和表示过去的时间状语连用(如:in 1990,last Sunday 等)。,一般过去时:一般过去时只表示过去的动作或状态,和现在不发生关系(即动作或状态在现在已经结束),它可以和表示过去的时间状语连用。,现在完成时与一般过去时的区别:,I saw this film yesterday. (强调看的动作发生过了) I have seen this film. (强调对现在的影响,电影的内容已经知道了) Why did you get up so ear

12、ly? (强调起床的动作已发生过了) Who hasnt handed in his paper? (强调有卷子未交,疑为不公平竞争),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.,Ive just drunk some tea,Have yo

13、u found it yet?,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),Tom/He has already left,did he leave,She has already seen the film,5. A: What do your parents thin

14、k about our plan?B: I _. (not / tell them / yet),have not/havent told them yet,4b,Fill in the blanks with the correct forms of the words in 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 boo

15、ks! 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.,loves,has,read,will be,She _ (finish) reading a book about robots last week and _ (write) a book report about it next week for her French class.

16、 Every time she is in the library, Sally looks at the many books she _ (not read) yet and she cant wait to read them!,finished,will write,has not read,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

17、was exciting, but Tom Sawyer was a bit boring.,4c,Complete the chart with information about you and a friend.,Group work,A: What things have you already done this week? B: I have already A: What things havent you done this week? B: Well, I havent How about you? A: I have ,句型转换 1. I have finished my

18、homework. (改为否定句) I _ _ my homework. _ you _ your homework? (改为一般疑问句并作肯定回答)Yes, _ _.,havent finished,Have finished,I have,2. His dream has come true. (改为一般疑问句并作否定回答) - _ his dream _ true? - No, _ _ .,Has come,it hasnt,( ) Why was he late for school yesterday? He overslept. By the time he got to the

19、bus stop, the bus _ already _.A. was, leaving B. has, left C. would, leave D. had, left,D,典型例题,( ) When and where to spend the holiday _ yet. Lets make it now.A. is decided B. doesnt decide C. has not been decided D. has decided,C,( ) I began watching here an hour ago, but now nothing _ yet.A. happe

20、ns B. will happen C. happened D. has happened,D,( ) Will you go and see the movie Net Mother with me? Thank you. But I _it already.A. saw B. have seen C. see D. will see,B,( ) Is Bohai Bridge open to the public yet?Yes. It _ for almost one and a half months.A. has opened B. has being openedC. has be

21、en open D. was open,C,( ) Are you going to the bank, Laura? No, I _ to the bank already.A. have been B. have gone C. am going D. had been,A,( ) China develops so fast. Thats true. It _ a lot already.A. changes B. changed C. will change D. has changed,D,( ) Our country _the sixth population census (人

22、口普查) already.A. finished B. has finishedC. will finish D. finishes,B,( ) Will you please go to see the movie Guanyinshan with me? No, I wont. I _ already.A. saw B. have seen C. see D. will see,B,( ) I _ scared of dogs ever since a dog hurt me when I was five years old. (2015杭州)A. will be B. wasC. ha

23、ve been D. would be( ) Ben and Sue arent home, are they? No. They _ to London on business. (2015江西)A. have gone B. goC. have been D. will go,C,中考链接,A,( ) Dave, we will leave in 10 minutes. Are you ready? No, I _ our guide book and towels yet. (2013广西玉林)A. dont pack B. didnt pack C. have packed D. havent packed,D,( ) Why is Mr. Yang still in the teachers office? Maybe he _ his work yet. (2013四川凉山)A. doesnt finish B. hasnt finished C. havent finished,B,Thank you,

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