1、Section Discovering Useful Structures Grammar 动词ing作主语新知导引诵读下列例句并感知画线部分的共性1Predicting the future can be difficult.2Cloning plants is straight forward but the cloning of animals is more complicated.3Traveling in space by ordinary citizens will be common.4Playing computer games is my favourite.共性呈现句1,
2、2,3,4中所有画线部分均为动词-ing形式，在句中都是作主语。语法精释1意义：动词-ing作主语通常表示一般性的、习惯性的动作或状态，其被动形式为being done，且作主语时谓语动词通常用单数形式。Going to Hangzhou by train takes about 16 hours from here.从这儿乘火车到杭州大约要花费16个小时。Understanding your own needs and styles of communication is as important as learning to convey your affection and emotio
3、ns.了解你自己的需要和交流风格与学会表达你的喜好和情感一样重要。Not giving enough praise can be just as damaging as giving too much.不给予足够的赞扬和给予太多(赞扬)一样有害。Being praised by his teachers made him regain the confidence.被老师表扬使他重获自信。Being laughed at in public is what you will never want to happen to you.被当众嘲笑是你永远不想发生在自己身上的事情。Being brou
4、ght up in a poor family made Tom very diligent when he was still young.汤姆出生在一个贫困的家庭里，这让他很小的时候就非常勤奋。2位置：动词-ing作主语时，可位于句首和句末。动词-ing位于句末时要用it作形式主语。动词-ing作主语且用it作形式主语的常见句型：It is no use/no good/a waste of time/.动词-ing.It is a waste of time trying to persuade such a person.试图说服这种人是浪费时间。It is no use waitin
5、g here.在这儿等无济于事。I think it is no good reading in bed.我认为在床上看书没有好处。It is worth seeing the movie for another time.这部电影值得再看一次。3逻辑主语：动词-ing作主语时，如果要突出动作的执行者，要在其前面加上所表动作的逻辑主语，这个逻辑主语通常为名词所有格或形容词性物主代词。Their coming to help was a great encouragement to us.他们前来帮忙对我们来说是巨大的鼓舞。Mikes returning to work is a great h
6、elp to us.迈克回来工作对我们来说是一大帮助。即学即练 单项选择/单句语法填空(1)_ to think critically is an important skill todays children will need for the future.ALearn BLearnedCLearning DHaving learned(2)_ along the old Silk Road is an interesting and rewarding experience.ATravel BTravelingCHaving traveled DTraveledCB(3)But _(us
7、e)cheese brine(盐水)could help both cheese producers and cities save money.Building up a dream team _(be)more complex than simply hiring the best talent.Its no use _(complain)without taking action.usingiscomplaining用括号内词的适当形式填空1_(know)basic first-aid techniques will help you respond quickly to emergen
8、cies.2_(ignore)the difference between the two research findings will be one of the worst mistakes you make.3In Hangzhou,borrowing books from the library _(be)now as simple and convenient as shopping online:clik,pay and wait for delivery.4_(equip)with global vision and the spirit of innovation is cru
9、cial to Chinas young generation.KnowingIgnoringisBeing equipped5It is agreed that _(read)widely is one of the most effective ways to enlarge our vocabulary.6I think it is no good _(have)another talk with him over the matter.7_(she)not coming back made her parents angry and sad.8The _(president)atten
10、ding the meeting himself gave them a great deal of encouragement.9_(understand)your own needs and styles of communication is as important as learning to convey your affection and emotions.readinghavingHer presidentsUnderstanding10It is fun _(paly)computer games.11It is worthwhile _(read)his works.12
11、It is a waste of time _(talk)with that man.13_(laugh)at in public is annoying.14_(Jane,be)careless caused so much trouble.15_(he)being late again and again made the manager angry.16_(learn)to think critically is an important skill todays children will need for the future.playingreading/to read talki
12、ngBeing laughedJanes beingHisLearning 17Traveling along the old Silk Road _(be)an interesting and rewarding experience.18_(have)enough fat and salt in your meals will reduce the urge to snack between meals and will improve the taste of your food.19Leaving the less important things until tomorrow _(be)often acceptable.20Having your grand children far away is hard,especially _(know)your adult child is struggling,but _(give)up the life you know may be harder.isHavingisknowinggiving