三年级下册英语课件UnitBigorSmall广东开心英语Let’ssing!tallshortbigAretheybig?它们很大吗？small小的Let’ssing!否定句：在be动词后加上notAretheysmall?We’reshort.我用am，你用are,is连着他,她,它be（是）动词am,is,areThey’rebig.No,theyaren’t.They’recold.Aretheybig?Let’ssing!三年级下册英语课件UnitBigorSmall广东开心英语______=she’s她是theyare=they’re他们是Yes,heis.Iam=I’m我是sheis=she’s她是Areweshort?Aretheybig?happy-----sad请迅速说出下列单词的反义词。_______=it’s它是Areyoutall?疑问否定任你变，句首大写莫迟疑。big-----smallAretheybig?它们很大吗？tall,tall,tall,Yes,theyare.theyare=they’re他们是They’resmall.Iam________(快乐的）.happy,happy,happy,Areyouhappy?Yes,I’mhappy.sad,sad,sad,Areyousad?No,I’mnot.tall,tall,tall,Areyoutall?Yes,wearetall.人称代词：be（是）动词am,is,are我用am，你用are,is连着他,她,它单数名词用is,复数名词全用are；变疑问，往前提，句末问号莫丢弃；变否定，更容易，be后not莫忘记；疑问否定任你变，句首大写莫迟疑。be（是）动词am,is,are一般疑问句：否定句：在be动词后加上not谢谢观看！感谢观看