八年级英语下册 Unit 1 Past and present课件 （新版）牛津版 (9)

1、1. What happened to Dick yesterday? He _ off his bike on the way to the school. A. fell B. is falling C. was falling D. has fallen2. I _ my sister six times till now but her line was always busy. A. had phoned B. was phoning C. have phoned D. have been phoningWe use the simple past tense to tell wha

2、t happened in the past.pastpresentDaniel went to Beijing two years ago.We use the present perfect tense to talk about an action that started in the past and continues to the present.Daniel has lived in Beijing for two years.pastpresentWe use the simple past tense to tell what happened in the past.pa

3、stpresentDaniel bought a new computer last month.We use the present perfect tense to talk about the result of an action. When the action happened is not very important. Daniel has bought a new computer. (He has a computer now.)pastpresentWe use the simple past tense to tell what happened in the past

4、.pastpresentHe visited Canada in 2010 and 2011.We use the present perfect tense to tell how many times an action has happened till now.He has been to Canada twice.pastpresent一、构成不同一、构成不同They lived here in 2011. 他们他们2011年住在这里。年住在这里。We have lived here for three years.我们已经在这里住了我们已经在这里住了3年了。年了。一般过去时：主语一

5、般过去时：主语 + 谓语动词的过去式谓语动词的过去式现在完成时：现在完成时：havehas + V-ed 现在完成时与一般过去时的区别现在完成时与一般过去时的区别He visited Guilin in 1998.他他1998年参观过桂林。年参观过桂林。She always swam in the sea when she lived in Qingdao.她住在青岛的时候，总是去海里游泳。她住在青岛的时候，总是去海里游泳。Jill has bought a new computer.吉尔买了一台新电脑。吉尔买了一台新电脑。I have had my lunch.我已经吃了午餐。我已经吃了午餐

6、。二、用法不同二、用法不同 一般过去时一般过去时表示过去某个时间发生的事、表示过去某个时间发生的事、存在的状态或经常发生的动作。说话的存在的状态或经常发生的动作。说话的侧重点只在于陈述一件过去的事情，不侧重点只在于陈述一件过去的事情，不强调对强调对“现在现在”产生的影响。产生的影响。现在完成时现在完成时表示的动作或状态与现在的表示的动作或状态与现在的情况有联系，侧重这一动作对现在所造情况有联系，侧重这一动作对现在所造成的影响。成的影响。He has read that book. (说明他现在知道那本书的内容。说明他现在知道那本书的内容。)He read that book last year

7、. (只说明他去年读过那本书。只说明他去年读过那本书。 )He has gone to America. (他现在不在此地，他现在不在此地， 到美国去了。到美国去了。)He went to America. (只说明他去过美国。只说明他去过美国。)三、时间状语不同三、时间状语不同 Did you watch that film last week?你上周看那部电影了吗？你上周看那部电影了吗？She came back yesterday.她是昨天回来的。她是昨天回来的。His father has been a teacher since 1968.他父亲从他父亲从1968年以来一直当老师。年

8、以来一直当老师。 Have you ever been to London? No, I have never been there. 你曾经去过伦敦吗？你曾经去过伦敦吗？ 没有，以前从没去过。没有，以前从没去过。一般过去时一般过去时通常与表示过去的具体的通常与表示过去的具体的时间状语连用。如：时间状语连用。如：yesterday, last week, two years ago, just now, in 2002等；而等；而现在完成时现在完成时则常与表示不确切则常与表示不确切的时间副词连用，如的时间副词连用，如already, yet, ever, never, just, since,

9、 for, so far, till now, up to now等。等。I _ (visit) the Palace Museum with my grandparents the other day.I _ (climb) Mount Huang last summer.visitedclimbedComplete the sentences with the correct forms of the words in brackets.(P41A)I am happy that I _ (learn) to swim. _ you ever _ (try) the famous Tian

10、jin Baozi?Have triedhave learnt I _ (finish/just) my homework. Millie _ (finish) her homework 20 minutes ago.2. I _ (write) an email to my friend yesterday. Daniel _ (write/already) two emails.have just finishedfinishedwrotehas already writtenComplete the sentences with the correct forms of the word

11、s in brackets.(P41B)3. I _ (be) in Hainan last month. Some of our classmates _ (not be) to Hainan yet.4. I _ (live) in Sunshine Town since I was born. Daniel _ (live) in Nanjing in 2007.washave not been have livedlivedMillie: _ (you/be/ever) to Nanjing?Simon: Yes. I(2)_(be) there three times.Millie:

12、 When (3)_ (you/go) there last?Simon: Last summer. I (4)_(spend) a week there.Millie: (5)_ (you/like) it?Have you ever beenhave beendid you gospentDo you likeSimon: Oh yes. I (6)_ (have) a great time there. I (7)_ (visit) many places of interest and (8)_ (eat) lots of local food.Millie: Lucky you! I

13、 (9)_ (be/never) there.hadvisitedatehave never beenbe buy read return see showSaturday, 15 MarchHave you ever dreamt of travelling around the world without a passport? Yes, you can realize your dream by taking an online tour. Yesterday Danniel (1)_ me an online tour of the USA. I (2)_ never _ so man

14、y wonderful pictrues before.showedhave seenLast week, I (3)_ a book about the places of interest in the USA. I (4)_ 20 pages already. Its really interesting. My dad (5)_ just _ from the USA, but I (6) _ never_ there. I hope I can visit the USA some day.be buy read return see showhave beenboughthave

15、readhasreturned1. We _ (plant) trees last Sunday. So far we _ (plant) over 300 trees there. 2. A terrible earthquake _ (happen) in Wenchuan on May 12, 2008.3. He _ (work) here since last year. 用所给动词的适当形式填空。用所给动词的适当形式填空。plantedhave plantedhappenedhas worked4. _ you _ (is) to the United States? Not yet. But I _ (go) t