2017-2018學年八年級英語下冊Unit3OnlinetoursGrammar2教案

1、On li ne tours教學目標1.To lear n differe nces betwee n Simple past tense and Prese nt perfect ten se. Complete Part A and Part Bon page 41 and underline the different time expressions.2.To learn different time expressions between the Simple past tense and the Present perfect ten se.教學重、難占八、1.To lear n

2、differe nces betwee n Simple past tense and Prese nt perfect ten se.Complete Part A and Part B on page 41 and underline the different time expressions.2. T o learn different time expressions between the Simple past tense and the Present perfect ten se.教學設(shè)計Step 1 Show :lea ning aims.Today we ll learn

3、8B Unit3 Online tours(Grammar2).Please look at our learning aims .(Then 1 read it slowly)T: Are you clear ?S: Yes.T: Let s go on .Step 2 Show “ Guide One to the stude nts.Guide One (8)Please write the words ,then recite them within 2 minutes.esterday, the other day, last,ago, just now. already, ever

4、, just, recently, yet, so far, upto now, till now, for,since，in the past/last ten years.Have a match! Who can do it best?T:please read and recite them by yourselves .If you have any questi on s,you can ask your deskmate or ask me.Un dersta nd?S:Yes.T:I ll give you 2 minutes .Please goT: OK ,Now,a ny

5、 questio ns?2點撥：一般過去時的用法概念：過去某個時間里發(fā)生的動作或狀態(tài)；過去習慣性、經(jīng)常性的動作、行為?；緲?gòu)成：主語+動詞(包括 be)的過去時常用的時間狀語： yesterday, last week, an hour ago, the other day, in 1982等具體時間狀語?！咀ⅰ坎徽撌欠穸ň溥€是一般疑問句，只要用了助動詞，原句中的謂語動詞的過去時都要還原成動詞原形；主系+表結(jié)構(gòu)的句子，主語要和was 和 were 在人稱和數(shù)上保持一致。表示過去某一時刻或某段時間發(fā)生的動作或者存在的狀態(tài)。常與表示過去的時間狀語連用。例如：I lived5 years ago.表

6、示在過去一段時間內(nèi)，經(jīng)常性或習慣性的動作。例如：When I was a child, I ofte n played football inthe street.一般過去時的形式有時并不表示過去的動作而是只表示說話人的委婉語氣。例如：could you tell meyour現(xiàn)在完成時與一般過去時的用法比較現(xiàn)在完成時的構(gòu)成概念：過去發(fā)生或已經(jīng)完成的動作對現(xiàn)在造成的影響或結(jié)果，或從過去已經(jīng)開始，持續(xù)到現(xiàn)在的動作或狀態(tài)。基本結(jié)構(gòu)：主語+have/has+過去分詞否定形式：主語 +have/has+not+過去分詞常用的時間狀語： now,today, tonight, this week, th

7、is year, already, yet, just, since, recently,inpast few years 等等Who can recite ? (let s Ss recite for the others)He /She recites once.You recite twice,Are you clear?S:Yes.T:Please go.Then A,B 分組讀。T: Now I will give you 2 minutes to understand them.Have a match! Who can do it best?Time is up,Who can

8、un dersta nd? Please check with your desk nm ates.(The n the teacher will check somestude nts) Let s go on .Please look at“ Guide Two ” .Check:3Use the correct forms of the verbs in brackets.heren ame?the41.The old man (live) here si nee 1992.2.you(visit) our factory yet?3. I(not see) you for a long

9、 time. You(cha nge) a lot.4. I m afraid I(keep) you waiting for such a long time.5. He(know) the city since he was very young.6.Are you sure you (lose) the book?-Yes, I(look) for it everywhere, but I still can t find it.Show“ Guide Two ”Please look at Grammar B and finish it with in five minu tes.Ha

10、ve a match! Who can do it best?T:I ll give you 5 minutes,Please go .Let one student finish it on the blackboard.T: Then check the an swers.Step 3Class Exercise(-)True or False(請改正)(1) He has gone to the cin ema since last ni ght.(2) He has see n many great films.(3) My gra ndfather has died for two years.(4) They have been i