1、Unit 8 Have you read Treasure Island yet?,学习目标：1.学习并掌握现在完成时的结构及用法。2.能够用现在完成时描述过去发生或完成的事对现在造成的影响。3.能够区分现在完成时和一般过去时,并实际运用于日常生活中。,1. Write the forms of the past tense and past participle: drink _ _ see _ _ &n
2、bsp; find _ _ leave _ _ tell _ _,drank drunk,saw seen,found found,left left,told told,现在完成时的构成:have /has + v 过去分词,助动词( 助动词要和主语的人称、数保持一致。),否
3、定,have not = havent has not = hasnt,疑问,Have you?Has he?,Exercise:1. I have finished my homework. 改为否定句: I _ _ my homework.改为一般疑问句并作肯定回答 _ you _ your homework? Yes，_ _.,haven't,finished,Have,finished,I,have,Exercise:2. His dream has come true. (改为一般疑问句并
4、作否定回答) - _ his dream _ true? - No，_ _ .,Has,come,it,hasn't,Make sentences:,Use the present perfect tense to make sentences.(用现在完成时造句。) 1. 肯定句： 2. 否定句： 3. 疑问句（并给出肯定及否定回答）：,I have already read the book.,He hasn't finished his homework yet.,Have you read Treasure Islan
5、d yet? - Yes, I have. / No, I haven't.,4c. Complete the chart with information about you and your friend.,I have already read .He has already seen.,4a: Use the words in brackets to complete the conversations
6、.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 drunk some tea,Have you found it,3. A: Do you know
7、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
8、 already left,did he leave,She has already seen the film,5. A: What do your parents think about our plan? B: I _. (not/ tell them/yet),havent told them yet,Practice:,I. 按要求进行句型转换。 1. I have already watched the movie.(改
9、为一般疑问句) _ you _ the movie _? 2.Have you read Little Women yet?(做肯定回答) _, _ _. 3. Has she read Treasure Island yet?(做否定回答) _, _ _.,Have,watched,yet,Yes,I,have,No,she,hasn't,II. 用所给单词正确形式填空。 1. Last year, they _ (buy) a new comput
10、er.2. I have already _ (put) it in my bag.3. Judy has already _ (finish)_(read) Little Women. 4. Tom and Mike have already _ (decide) to learn Chinese on Internet. 5. Have you _(read) Alice in Wonderland yet? 6. Robinson _ (have) already built a house on the island. 7._ you _ the funny
11、movie Let the Bullets Fly?,Practice:,bought,put,finished,reading,decided,read,has,Have,watched,Summary：,现在完成时的结构： 主语 + have / has（not） + 过去分词 (+ 其他) I have already read the book.现在完成时和一般过去时的区别： （1） 现在完成时： 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。 （2）一般过去时： 只表示过去的动作或状态，和现在不发生关系。,Thank you for listening!,
