易错题专项 Unit 3 二 单项选择 三年级英语下册 译林版（三起）含答案

单元专项Unit 3 二 单项选择 （易错题） 1、 单项选择。 ( )1.This_______my schoolbag. A.not B.no C.isn't ( )2.Is that_______egg? A.a B.an C.you ( )3—_______? —It's a pen. A.It is B.What are they C.What is it ( )4.Oh.that's_______ruler. A.I B.you C.my ( )5. —Is that your pen? —_______ A.Yes, it's a pencil. B.It's OK. C.No,it isn't. ( )6This pencil is_______you. A.for B.to C.four ( )7.Is this_______lunch box? A.you B.your C.I ( )8.What's it_______? A.over there B.lunch box C.ruler ( )9._______is your lunch box? A.It B.This C.Where ( )10.—Would you like a cake? — _______ A.It's over there B.No, thank you C.Hooray! ( )11.—Look_______my new schoolbag, Mike. —How nice! A.at B.on C.in ( )12.—_______that your crayon? —Yes,_______. A.Is; it is B.Is;isn't C.Are;they are ( )13.—The rubber is for you, Mike. —_______. A.Goodbye B.Thank you C.Hi ( )14.—Don't listen_______Sam, Bobby. —OK. A.in B.for C.to ( )15.—Is this_______pencil case? —Yes, it is. A.I B.you C.your ( )16.—Is that my rubber? —No,_______. A. it is B.it isn't C.that is ( )17.—_______that your crayon? —Yes,it is. A.Is B.is C.Are ( )18.—This rubber is for you. —_______. A.yes B.Sorry C.Thank you ( )19.—Is that your cake? —No, _______isn't. A.it B.he C.It's ( )20.Don't eat my_______. A.milk B.hot dog C.juice ( )21.Is this_______pen? A.you B.your C.she ( )22.—What's this? —_______cap. A.It's B.This C.It's a ( )23.—Is this your crayon?—No,_______. A.it is B.it isn't