1、Unit 5 The power of naturePart 1 Teaching design第一部分 教学设计Period 2 A sample lesson plan for Learning about Language(Revising the ing form)IntroductionIn this period students will be reading aloud the text to the tape first. Then they shall go on to discover useful words and expressions. After that th
2、ey may be given materials to learn about the ing form. Finally they shall take a quiz. Objectives To help students learn about the ing form To help students discover and learn to use some useful words and expressions To help students discover and learn to use some useful structuresProcedures1. Warmi
3、ng up by reading aloud the text AN EXCITING JOBWe promote reading aloud to students and by students in order to result in a sense of English and a desire to become a fluent English speaker. So Read aloud and circle all the examples of “ing form” in the text before first. 2. Discovering useful words
4、and expressionsIn pairs do Ex. 1 and 2 on pages 35. Try to finish them in 5 minutes.3. Learning about grammar点拨高考动词-ing形式 动词-ing形式由动词原形+ ing构成。动词-ing形式起到名词、形容词和副词的作用，在句中可作主语、宾语、表语、状语和宾语补足语，但不能单独构成谓语，其构成形式如下，以do为例： 主动 被动 一般时态 doing being done 完成时态 having done having been done 否定式：not+ 动词-ing. Learnin
5、g English is very important to me. Having been widened, the road took on a different look. 随着-ing在句子中所做的成分不同，所用的时态和语态有不同的要求，关于-ing的时态和语态的详细使用，在下面ing所作的句子成分中讲述。 1. 动词-ing形式作主语： Seeing is believing. 有时主语太长，可用it作形式主语，将真正主语放在后面。如：It is fun swimming in a river or lake in summer. 注意：动词-ing与不定式作主语的区别： 一般情况
6、下可以换用： It is dangerous playing/to play with fire. 但在口语中用动词-ing形式放在句首比不定式多。 Going shopping is a pleasant thing. 在下列句型中习惯用-ing作主语，不用不定式： It is no use. It is no good doing. It is useless. It is useless only learning English grammar. It is no good cutting down the forest. 在there+ be+ no+ 主语结构中，必须用动词-ing
7、作主语： There is no telling what will happen in the future. 主语和表语结构相同，对等。 Seeing is believing. To see is to believe. 2. 动词-ing作宾语： (1)在及物动词后： Would you mind my sitting here? We suggest going out for a picnic on Sunday. (2)在介词后：Im against going there so soon. ing 作状语1)现在分词短语作状语,表示原因,时间,方式,伴随情况,结果或条件。例子句
8、意原因Being ill (=As she was ill), she didnt go to school today.今天她生病了,所以没来上学。时间Hearing the good news (= When he heard the good news), he jumped with joy.听到这个好消息,他高兴得跳了起来。行为方式伴随情况或补充说明Laughing and talking, they went to the room.他们又说又笑地走进了房间。结果The child fell, striking his head against the door and cutti
9、ng it.那小孩摔了一跤,头让门碰破了。条件Working hard, you will succeed.努力工作你会成功的。2) ing短语的一般式和完成式ing短语的一般式作状语, 通常表示与句中谓语同时发生的动作和状态。eg: Being blind, how could they see the elephant? ( = As they were blind , how could they see the elephant?)因为他们是瞎子,他们怎能看得见大象呢?ing短语的完成式(having + 过去分词)作状语,表示在句中谓语之前发生的动作和状态。eg: Having pu
10、t up the tent, they started to cook their supper.(= After they had put up the tent, they started to cook their supper. 搭好帐篷以后,他们就开始做晚饭。Having been separated from other continents for millions of years, Australia has many plants and animals that cannot be found anywhere else in the world.由于同其它洲分离数百年了
11、,所以澳大利亚有许多动植物是世界上任何其它地方所没有的。3) 作状语用的ing短语,其逻辑主语必须同句中主语相一致。eg: Having found the cause, they continued the experiment.(正)Having found the cause, the experiment continued. (误) 找出原因后,他们继续做实验。但有时它也可以有自己独立的逻辑主语,这种结构称为独立主格结构。eg: So many people being absent (=As so many people were absent), they decided to
12、put the meeting off. 那么多人不在,他们决定会议延期举行。Weather permitting (=If weather permits), well go there on foot. 天气允许,我们就步行到那里。Judging by his accent, he must be from America. 从口音看, 他一定是美国人。4) 现在分词短语的被动语态表示一个动作与主句主语构成被动关系,并且这个动作是正在进行的或与谓语表示的动作同时发生。Being asked to put on a performance, she refused.有人请他表演一个节目,他拒
13、绝了。有时也有完成被动式 Having been given such a good chance, how could you let it slip away?人家给了你这样一个好机会,你怎么能轻易放过? 5) 现在分词短语的否定形式由 “not+ 现在分词”构成,完成式的否定式“not +having +现在分词”Not having heard from her son for a long time, the mother worried a great deal.由于很久没有收到儿子的来信,这位母亲很担心。4. Testing yourself (to-infinitive or
14、-ing form?)Complete these statements using an appropriate form of the verbs given. e.g. I would love (visit) China. I would love to visit China.She stopped (talk) to him after that last argument. She stopped talking to him after that last argument. 1. I dont remember_(play) any dangerous games when
15、I was a child. 2. When I need to remember_(do) something important, I tie a knot in my handkerchief. 3. Ill never forget_ (tell) my first lie. 4. Ive never forgotten_ (do) my English homework. Not once. 5. I usually stop_ (pick up) hitchhikers, whatever they look like. 6. If I drink coffee in the ev
16、ening, it stops me_ (sleep). 7. I tried_ (windsurf) last summer and I really enjoyed it. 8. I try_ (learn) at least ten new English words every day, but I seem to forget most of them. 9. I like_ (keep) all my credit card receipts just in case the bank makes a mistake. 10. I hate_ (drive) at night, e
17、specially on country roads in the rain. 5 Looking back高考单选题中的“-ing 动词”5. When _ different cultures, we often pay attention only to the differences without noticing the many similarities.A. compared B. being compared C. comparing D. having compared（2006浙江）30. Whenever he was asked why he was late for
18、 class, he would answer carelessly, always _ the same thing. A. saying B. said C. to say D. having said (2006江苏)34. Dont sit there_ nothing. Come and help me with this table.A. do B. to do C. doing D. and doing (2006湖北）32. _ and happy, Tony stood up and accepted and prize.A. Surprising B. Surprised
19、C. Being surprised D. To be surprising (2006全国I)21My cousin came to see me from the country, _ me a full basket of fresh fruitsAbrought Bbringing Cto bring Dhad brought (2006安徽）34. Russ and Earl were auto mechanics _ the same pay, but Earl had more ambition. A. to earn B. to have earned C. earning D. earned (2006上海）Keys: CACBBC6. Closing down by doing exercisesTo consolidate what we have learned about ing form, lets go to page 35 and 36 to do the vocabulary and grammar exercises in pairs. We shall write our answers just in the textbook.
