現(xiàn)在完成時綜合復(fù)習(xí)教學(xué)設(shè)計

1、現(xiàn)在完成時教學(xué)設(shè)計 涼水河中學(xué) 王春潔教學(xué)目標(biāo)： 1. 復(fù)習(xí)現(xiàn)在完成時的構(gòu)成及其用法 2. 利用現(xiàn)在完成時解決實際問題 教學(xué)重難點： 1.如何判斷動詞要使用現(xiàn)在完成時以及與一般過去時的區(qū)別。 2.現(xiàn)在完成時的用法二，注意其中的動詞必須用延續(xù)性動詞。 教學(xué)步驟： Step 1: Revision by doing exercises 1. Listen! Who _(knock) at the door? 2. It is 12 oclock. The Greens _(have) lunch. 3. Where _ Tom _(come) from? 4

2、. Bob _(go) to school on foot every day. 5. I _(not do) my homework last night. 6.  Yesterday we _(go) to the beach for vacation. 7. _they _(lose) their way just now? 8. Please bring your umbrella. It_ (rain) outsideStep2: Presentation Now this class we will revise the tense

3、 “ the present continue tense”. First lets revise the usage of it, the first usage :表示過去發(fā)生的動作對現(xiàn)在造成的影響或結(jié)果。In order to help the students understand the grammar, tell them a oral song。這種用法的標(biāo)志詞有just是剛剛, before是以前, ever是曾經(jīng), never是從不, already是已經(jīng)，用在肯定中, yet是已經(jīng)還，用在否定句或疑問句中。例如： Tom has just come back. Tom剛剛回

4、來了。 I have already finished my homework.我已經(jīng)完成我的作業(yè)。 Mary hasnt finished her homework yet. Mary還沒完成她的作業(yè)。 1 / 4In order to help the students understand the tense, and then let them do the following exercises: 1. My father _(not come) back yet. 2. I _ never _(be) to Beijing before. 3. They_ ju

5、st_(read) this novel. 4. _ you _(see) the film once? 5. Tom _already _(finish) his work. 6. I _ (lose) my key ,so I cant open the door. Step 3: go on revising the second usage : 表示從過去開始一直延續(xù)到現(xiàn)在的動作或狀態(tài)。在此必須強(qiáng)調(diào)動詞必須是延續(xù)性動詞。這一點也是這一用法的重點和難點。常見的非延續(xù)動詞有come, start/ begin, buy, borrow, leave, die

6、and so on. 在第二種用法中的標(biāo)志詞有for, since.即看到for或since時，動詞必須轉(zhuǎn)化成延續(xù)性動詞，他們的轉(zhuǎn)化關(guān)系如下：come 轉(zhuǎn)化為be here 或be in; start/ begin 轉(zhuǎn)化為be on; buy轉(zhuǎn)化為 have; borrow 轉(zhuǎn)化為keep; leave轉(zhuǎn)化為 be away (from); die 轉(zhuǎn)化為be dead。例如： 我買這輛自行車兩年了。I have had the bike for two years. 他爺爺死了十年了。His grandpa has been dead for ten years.電影上演十分鐘了。The f

7、ilm has been on for ten minutes. 另外理解for或since的用法也很重要。Let the students understand “for” or “since” by doing exercises. Tom has been in Beijing _ ten years. Our country has changed a lot _1980. He has made many friends _ he came to this school. I have learned English _ seven years. 通過以上練習(xí)題，他們會發(fā)現(xiàn)后for跟

8、時間段；而since后跟時間點或從句。 注意：任何事物都不是一成不變的，通過上下文的理解來判斷時態(tài)也很重要。 現(xiàn)在完成時和一般過去時的區(qū)別在于：盡管動作都是過去發(fā)生的，但如果和現(xiàn)在有關(guān)系要用現(xiàn)在完成時 。如：I have eaten lunch.我吃午飯的動作是過去發(fā)生的，但對現(xiàn)在的影響是我不餓了。I have lost my pen.鋼筆丟了造成的影響是我沒有鋼筆了。Ilost my pen last night.只是強(qiáng)調(diào)昨晚發(fā)生丟鋼筆這一動作。 Step 4: Exercises: (一)用所給詞的適當(dāng)形式填空。所以同學(xué)都要求掌握。 1. _ you _(read) the bo

9、ok before? 2. Tom _ just _( come) back. 3.I _( have) an allergy since I _( be) six. 4.  My father _( be) much healthier since he _-( give) up smoking. 5. where is your father? He _( go) to work. 6.  _ you _( finish) your homework? Yes, I have. When _ you _(finish) it? Ten minutes ago. 7. How long _ you _(colle