8b unit1 grammar1+2.ppt

Present perfect tense 现在完成时 Simple present tense Simple past tense Present continuous tense Past continuous tense Simple future tense Present perfect tense Present perfect tense (现在完成时) How long has Mr. Chen lived in Sunshine Town? He has lived there since he was born. How long have you lived in Huaqiao? How long have you been a student? How long have we known each other? How long have you studied English? 1. Peter has visited his grandparents. (改为一般疑问句并作肯定回答) 2. Linda and Kate have had lunch in the school. (改为一般疑问句并作否定回答) 3. The students have done their work (否定句). 4. My younger brother has drunk a bottle of orange juice. (划线提问) 5. Jim has lived in Beijing for one year. (同上) 写出下列动词的过去分词形式(本单元出现和使用频率较高) use ______ marry_______ realize ________ get ______ be _____ come ______ forget ________ see _______ stop ________ Write the past participles of the verbs borrow ______ plan_______ say ________ hope _______ cry ______ grow _____ make ______ send ________ hit _______ get ________ watch _______ enjoy ________ We can use these time expressions with the present perfect tense already ever for just never recently since yet * * * base form (eat) simple past (ate) present participle (am/is/are+ eating) have/has + past participle (was/were+ eating) (will/ be going to eat) (have/ has eaten) have/has + past participle （have / has + 过去分词） regular irregular ①已经 ②过去 现在 将来 持续 持续 ③过去 现在 影响 ④过去 现在 次数 ①已经 ②过去 现在 将来 持续 持续 ③过去 现在 影响 ④过去 现在 次数 Tom has broken the window. I have been teacher for 5 years. I have read this book for three times. I have studied English for 6 years. (否定句，一般疑问，并作肯定否定回答) Has peter visited his grandparents? Yes, he has. Have Linda and Kate had lunch in the school? Yes, they have not / haven’t. The students have