1、Have you ever seen these signs? Parking Spitting Littering SmokingVing forms 1. 直接加直接加ing 2. 去去e加加ing 3. 以重读闭音节结尾的动词，以重读闭音节结尾的动词，双写辅音字母加双写辅音字母加ingV-ing 变化规则变化规则 GrammarThe Use of -ing Form (1)Verb-ing Form as Subject and Object动词动词-ing形式作主语和宾语形式作主语和宾语He likes his dog. His dog likes him.主语主语宾语宾语代词代词名
2、词名词主语主语宾语宾语名词名词代词代词结论结论:主语和宾语一般为名词或者代词。主语和宾语一般为名词或者代词。1.v-ing作主语作主语 1. is their hobby.(跳跳舞舞)Dancing2. is the best way to lose weight.(做做运动运动)Doing exercise 3. is his dream. (像鸟一样飞像鸟一样飞)Flying like a bird Whats in common?Dancing is their hobby.Doing exercise is a good way to lose weight.Flying like a
3、 bird is his dream.1. 作主语。作主语。 2. 谓语动词用谓语动词用 。动词动词-ing单数单数一一. 定义定义动词动词-ing形式作主语形式作主语 表示经常的、习惯性的动作或表示经常的、习惯性的动作或状态状态, 谓语动词通常用单数。谓语动词通常用单数。1.动名词直接置于句首主语的位置上。动名词直接置于句首主语的位置上。1) 对别人说谎是我们万万不能干的对别人说谎是我们万万不能干的. is something we should never do2)学习新单词对我来说非常重要。学习新单词对我来说非常重要。 is very important for me3)说比做容易。说比
4、做容易。 is easier than doing.二二. v-ing 作主语时的句子形式作主语时的句子形式Telling lies to othersLearning new wordsTalking2.用用形式主语形式主语it，把真正的主语，把真正的主语v-ing结构移置句尾结构移置句尾。作作表语的只能是某些形容词或少数名词。表语的只能是某些形容词或少数名词。常见的名词或名常见的名词或名词短语有词短语有: no use, no good, fun, pleasure, a hard / difficult job, a waste of time等等; 形容词有形容词有: worthwhi
5、le, useless等。如等。如:It is no use/good doing sth 做是没有用处/好处的It is no use (求救求救) asking for helpIt is/was worthwhile doing 做做是值得的是值得的 It is worthwhile .(这部是电影值得看的这部是电影值得看的)seeing the movieIt +is/was +a waste of time doing 做做是浪费时间的是浪费时间的It is a waste of time .(玩电脑游戏玩电脑游戏)playing computer games3. 在在there b
6、e 句型中句型中There is no sense in doing sth 做做没有道理没有道理There is no use/good doing sth 做做.没有用没有用There is nothing worse than doing sth 没有比没有比更糟的更糟的There is no point （in）doing sth 做做无意义无意义注意：注意注意：注意: There is no need to do sth 做做没必要没必要在此句式中在此句式中to do不可换为不可换为doing.没有必要告诉她。没有必要告诉她。There is no need to tell her.
7、 动名词与不定式做主语时的比较：动名词与不定式做主语时的比较：动名词表示的动作通常是一个动名词表示的动作通常是一个习惯性的长期进行习惯性的长期进行的动作的动作, 不定式则通常表示不定式则通常表示动作的一次性或短暂性动作的一次性或短暂性。e.g.1）Teaching English is my job.2）Finding ways to grow more rice has been his life goal.3）To reach there on time is my task.2. v-ing 作宾语作宾语My sister enjoys_ （站）（站）alone on the seash
8、ore. standingThe wolf always dreams of _ (捉捉)sheep.dream of catching作宾语作宾语1.只能接只能接doing作宾语的动词作宾语的动词, 常见的有常见的有avoid, consider, enjoy, keep, admit, finish, suggest, escape, imagine, mind, miss, practise etc. 短语：短语：be interested in, be fond of, be good at, dream of, feel like, spendin, be proud of, get
9、/be used to, lead to, look forward to, succeed in, pay attention to, give up, devote.to, object to, insist on etc.I suggest meeting at the restaurant.I insist on going there on foot.1）意义基本相同意义基本相同A. like, love, hate, preferto do doingB. begin/start, continue, intend to do/doing 无区别无区别具体的一次性动作具体的一次性动
10、作经常性经常性2. 既能接既能接doing 也能接也能接to do 作宾语的动词。有些意作宾语的动词。有些意义基本相同，有些大不相同。义基本相同，有些大不相同。2 2）意义大不相同）意义大不相同 go on to do (做完一件事后)接着做另一件事 go on doing 继续做（原来做的事）After a break, the teacher went on _ (to give /giving) his lesson remember to do 记着要做 （动作未发生） remember doing 记得做过（动作已发生）I remember to post the letter.I
11、remembered posting the letter. forget to do 忘了去做 （没做） forget doing/having done 忘记以前曾做过 (做过忘了）I forgot to post the letter.I forgot posting the letter. regret to do (say/tell/inform/announce) 遗憾地 (对将要做的事抱歉) regret doing/having done 后悔做了 (对已经发生的事感到后悔)I regret _ (say) I cant come.I regret _(spend) so mu
12、ch money the on car. mean to do 打算做（主语一般是人） mean doing 意味着（主语一般是物）Being late means _ (wait) for another hour.You really mean _ (go) try to do 设法 /尽力/努力去做 try doing 尝试着去做（看有何结果）Since the front door wont open, why not try _ (open) the back door?Try _ (write) better in your exam.stop to do 停下来去做（另一件事）s
13、top doing 停止做（原来做的事）He stopped _ (say) to his teacher on the way.When the bell rang, we stopped _ (talk) be used to do 被用来做 be used to doing 习惯于/适应于He has been used to_ (get) up early.Wood is used to _ (make) paper.cant help doing 禁不住做某事禁不住做某事cant help (to) do 不能帮助做某事不能帮助做某事He cant help_(do) housewo
14、rk, for he is busy. We cant help _(laugh) when we heard the funny story. 3. need, require, want作作“需要需要”解时解时, 后接后接动词动词-ing形式作宾语形式作宾语, 主动形式表示被动意主动形式表示被动意义义, 相当于相当于to be done。 即即: need/want/require+ doing =need/want/require+ to be doneThe door needs/wants/requires _(repair) / _repairingto be repaired3.
15、v-ing的的复合复合结构作主语或结构作主语或宾语宾语 (1) Their coming to help was a great encouragement to me.(2) Miss Zhang was angry at Toms being late for class again. (3)I dont mind Tom / him going. 请根据以上句子归纳出V-ing复合结构的形式：(1)_(2)_(3)_来源:学科网ZXXKv-ing的复合结构的复合结构形容词性物主代词形容词性物主代词+doing名词名词s+doing名词名词/代词宾格代词宾格+doingPractice C
16、omplete these sentences:1. In some parts of London，missing a bus means _(wait) for another hour2One learns a language by making mistakes and _(correct) them3.we are now busy _ (prepare) for the exam.4. The light in the office is still on.Oh, I forgot _(turn) it off. 5. Its no use _ so much money on
17、clothes. (spend) 6. It is a waste of time _(read) a novel all night.waitingcorrectingpreparingto turnspendingreading1.出国旅行是很激动人心的出国旅行是很激动人心的。2 我记得在哪里见过他我记得在哪里见过他。3 我后悔没听你的劝告我后悔没听你的劝告。4 帮助别人就是帮助你自己帮助别人就是帮助你自己。Traveling abroad is very exciting.I remember seeing her somewhere.I regret not following your advice.Helping others means helping yourself.Translation
