高中英语 unit3 Grammar课件 新人教版选修6.ppt

人教课标高二选修6unit3 1 itisnevertoooldtolearn 活到老 学到老 2 itrainscatsanddogs 大雨滂沱 3 itneverrainsbutitpours 不鸣则已 一鸣惊人 4 itisapoormousethathasonlyonehole 1 itisnevertoooldtolearn 2 itrainscatsanddogs 3 itneverrainsbutitpours 4 itisapoormousethathasonlyonehole itisamazingthatatmyageiamstillfit 2 itiseasiertofallthantorise 3 itisnogoodcryingoverspiltmilk 4 ithinkitbestthatyoushoulddomoreexercise 5 hefounditdifficulttoaccustomhimselftogettingupearly thesubjectposition itisamazingthatatmyageiamstillfit 2 itiseasiertofallthantorise 3 itisnogoodcryingoverspiltmilk it canbeusedinthesubjectpositiontostandfor or aclause aninfinitive ingform theobjectposition 4 ithinkitbestthatyoushoulddomoreexercise 5 hefounditdifficulttoaccustomhimselftogettingupearly aclause aninfinitive itisamazingthatatmyageiamstillfit 2 itiseasiertofallthantorise 3 itisnogoodcryingoverspiltmilk 4 ithinkitbestthatyoushoulddomoreexercise 5 hefounditdifficulttoaccustomhimselftogettingupearly it canbeusedinthesubjectorobjectpositiontostandfor or aclause aninfinitive ingform it sdifficulttogiveupsmoking isitcertainthattheywillwin itisgoodlearningwithoutpractice itisfunforhimtostudy it sapitythatourteachercan ttakepartinourparty 6 itissuggestedthatwe should arrivetherein2hours formalsubject it is adj n p p infinite clause ingform realsubject clear easy true difficult certain etc fun apity ashame nouse good etc said believed decided hoped etc it sdifficulttogiveupsmoking itisfunforhimtostudy 3 itissuggestedthatwe should arrivetherein2hours 遵循英语语言的尾重原则 避免句子头重脚轻 formalobject 2 verb it adj n infinite clause ingform realobject find think feel believe consider make etc 2 someyoungpeoplethinktheylookattractivewhentheysmoke itseems givingupsmokingisdifficulttodo itis thatsomeyoungpeoplethinktheylookattractivewhentheysmoke difficulttogiveupsmoking 3 mostpeoplebelievesmokingcausescancer itisbelieved 4 don ttrytoquitonastressfulday itisnouse tryingtoquitonastressfulday thatsmokingcausescancer 5 chinaproducesonethirdoftheworld scigarettes itisastonishing 6 youarenotallowedtoadvertisecigarettesinthiscountry itisillegal thatchinaproducesone thirdoftheworld scigarettes toadvertisecigarettesinthiscountry 7 myfatherhasquitsmokingatlast itiswonderful 8 thenightwasdarkandstormywhentheoldmanstartedhisjourney itwasa darkandstormynightwhentheoldmanstartedhisjourney thatmyfatherhasquitsmokingatlast 9 youcouldsufferfrombadhealthifyoukeepsmoking itislikely 10 youhavetotakepillstocontrolyourbloodpressure itisnecessary foryoutotakepillstocontrolyourbloodpressure thatyoucouldsufferfrombadhealthifyoukeepsmoking 8 itwasadarkandstormynightwhentheoldmanstartedhisjourney inthissentence it isusedtotalkabouttime it canbeusedinanotherway inthissentence whatdoes it referto itisabeautifulday 2 itneverrainsbutitpours 3 itwastimetoquitesmoking 4 itis10kilometerstothecastle 5 ittakesallsorts 世上的人形形色色 无奇不有 it canbeusedtotalkabout etc itisabeautifulday 2 itneverrainsbutitpours 3 itwastimetoquitesmoking 4 itis10kilometerstothecastle 5 ittakesallsorts weather time distance impersonal it canalsobeusedtotalkabout etc circumstance 1 itisfridaytoday 2 itliesinthesouthofshaoguancity 3 itis40 yougotahighfever 4 it squiethere date place temperature 1 itwasverycoldyesterday 2 itisabout8 30now 3 itisabout5kmfrommyhometothepark 4 it squitenoisyhere 5 ihopethatitwillbefinetomorrow circumstance weather time distance weather oneofyouisaneyewitness e whohasseenarobberyoranaccident theotheristhepoliceman policewoman p whowantsasmuchinformationaspossible use it intheanswers example p whatwastheweatherlikeonthedayoftheaccident e itwasbeginningtorainhardandthegroundwasslippery p