unit3-a-healthy-life-Grammar

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.1.ItisamazingthatatmyageIamstillfit.2.Itiseasiertofallthantorise.3.Itisnogoodcryingoverspiltmilk.4.Ithinkitbestthatyoushoulddomoreexercise.5.Hefounditdifficulttoaccustomhimselftogettingupearly.形式主语1.ItisamazingthatatmyageIamstillfit.2.Itiseasiertofallthantorise.3.Itisnogoodcryingoverspiltmilk.“It”canbeusedinthesubjectpositiontostandfor_______,___________or_________.that从句V-ingtodo形式宾语4.Ithinkitbestthatyoushoulddomoreexercise.5.Hefounditdifficulttoaccustomhimselftogettingupearly.从句todo1.ItisamazingthatatmyageIamstillfit.2.Itiseasiertofallthantorise.3.Itisnogoodcryingoverspiltmilk.4.Ithinkitbestthatyoushoulddomoreexercise.5.Hefounditdifficulttoaccustomhimselftogettingupearly.“It”可做代替_________,__________或__________来充当形式主语或形式宾语从句todoV-ing1.It’sdifficulttogiveupsmoking.2.Isitcertainthattheywillwin?3.Itisgoodlearningwithoutpractice.4.Itisfunforhimtostudy.5.It’sapitythatourteachercan’ttakepartinourparty.6.Itissuggestedthatwe(should)arrivetherein2hours.1.基本句型：Itbe++过去分词：suggested,requested,ordered,proposed…形容词:important,necessary,natural,名：apity/ashame/nowonderV-ing过去分词nadj从句todoclear,easy,true,difficult,certain,etc.fun,apity,ashame,nouse/good,etc.said,believed,decided,hoped,etc.2.…+verb+it+adj./n.+todo/V–ing/从句find,think,feel,believe,consider,make,suppose,etc.1.Itisnouse2.Itisnousetryingagain.tryingtoquitonastressfulday.2.Itwasadarkandstormynightwhentheoldmanstartedhisjourney.Inthissentence,whatdoes“it”referto?time1.Itisabeautifulday.2.Itneverrainsbutitpours.3.Itwastimetoquitesmoking.4.Itis10kilometerstothecastle.5.Ittakesallsorts.世上的人形形色色，无奇不有。“It”canbeusedtotalkabout________,_____,________,etc.1.Itisabeautifulday.2.Itneverrainsbutitpours.3.Itwastimetoquitesmoking.4.Itis10kilometerstothecastle.5.Ittakesallsorts.weathertimedistanceImpersonal“it”canalsobeusedtotalkabout____,______,____________,_____________,etc.circumstance1.ItisFridaytoday.2.ItliesinthesouthofShaoguancity.3.Itis40℃!Yougotahighfever!4.It’squiethere.dateplacetemperature1.Itwasverycoldyesterday.2.Itisabout8:30now.3.Itisabout5kmfrommyhometothepark.4.It’squitenoisyhere.5.Ihopethatitwillbefinetomorrow.circumstanceweathertimedistanceweather1.Itrainsheavily.2.Itis20kilometersfromGranddad’shousetoJames’.3.ItisNovember11,2005.4.Itis9o’clockatnight.5.It’llbelovelyinthegardentonight.6.Itisbadtosmoke.7.Itislikelythathewillsucceed.天气距离日期时间形式主语环境形式主语theuseof“it”ineachsentence