选修六book6unit3grammar-it用法

《选修六book6unit3grammar-it用法》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、Unit3AhealthylifeGrammar：Theusagesofit一.基本用法:it做代词1)Lookatthepicture._____isapictureofourschool.2)Someoneisknockingatthedoor.Whois__?1.用作人称代词，代替前面提到的人（不明确的）或物,也可以指动物或婴儿.itIt---Isthisyourbook?---Yes,______is.2.用于代替指示代词this和that.it一.基本用法:it做代词1）Itishalfpasteightnow.2）It’s

2、onlyhalfanhour’swalkfromheretoourschool.3）Ihopethatitwillbefinetomorrow.4）Ithasrainedmuchthisyear.5）It’sspringnow.6）It’squiethere.7）Itis40℃!Yougotahighfever!3.非人称代词用以表示时间、距离、天气、气候、季节、环境、温度等timedistanceweatherclimateseasonenvironmenttemperature1.人称代词a.用作人称代词，代替前文提到的人或物，以

3、避免重复:b.也可以指动物或婴儿(未知性别的婴儿或孩子).2.非人称代词有时并不指具体的东西，可指天气、时间、距离、环境等Itwasveryquietinthecafé.Itishalfanhour’swalktothecity.3.指示代词指代this或thatThisisyourpen,isn’tit?it的基本用法歌名：Anythingbutordinary(绝不平凡）歌手：艾薇儿·拉维妮（AvrilLavigne）SometimesIgetsoweirdIevenfreakmyselfoutIlaughmyselftosl

4、eepIt'smylullabySometimesIdrivesofastJusttofeelthedangerIwannascreamItmakesmefeelaliveIsitenoughtoIsenoughtobreathSomebodyripmyheartoutAndleavemeheretobleedIsenoughtoSomebodysavemylifeI'dratherbeanythingbutordinarypleaseTowalkwithinthelinesWouldmakemylifesoboringIwantto

5、knowthatIHavebeentotheextremeSoknockmeoffmyfeetsComeonnowgiveittome……loveitdieitIsitenoughtolove？Itisenoughtolove.（肯定句）(一般疑问句）形式主语真正主语当__________、________、_________在句子中作主语时，为保持句子结构前后平衡，避免头重脚轻，因此常用it作形式主语置于句首，而将真正的主语放在句尾。此时it只起先行引导作用，本身无词义。Itbe+adjnp.p(for/ofsb)todosthdo

6、ingsth主语从句+difficult,important，natural,necessary，etc.fun,apity,nouse/good,time,etc.said,reported,suggested,ordered,etc.it用作形式主语从句动词不定式动词-inggiveupdrinking?difficult!CompletethesentencesItisdifficultforthemto__________.giveupdrinkingItis+adj+todosth.See!Abighenploughing(

7、｀plauiŋ耕地)!Itis__________________________.(看到如此大的一只母鸡是一件惊讶的事情)asurprisetoseesobigahenItis________________________________.(看到如此大的一只母鸡耕地是一件有趣的事情)funtoseesuchabighenploughingItis+n+todosth.Itisnogoodouse_________________(cryoverspiltmilk).Oh!Mymilkisspilt(溢出).cryingover

8、spiltmilkItis+_______________+doingsth.做...是没用的/没好处的nouse/nogood覆水难收。Completethesentences到了我们要戒酒的时候了。_________