单元固基提能Unit 3 Is this your pencil ? 1. 误 : —Is this your schoolbag? —Yes, this is. 正 : —Is this your schoolbag? —Yes, it is.【易错警示】对于一般疑问句“ Is this/that…? ” 的回答 , 我们要用“ Yes, it is./No, it isn't.” 来表示。故应将 this is 改为 it is 。2. 误 : This is her eraser, and that one is my. 正 : This is her eraser, and that one is mine.【易错警示】 my 是形容词性物主代词 , 相当于形容词 , 不能单独使用 , 要置于名词前当定语。后面句子所要表达的是 This is her eraser, and that one is my eraser, 为了避免重复故应将 my eraser 用 mine 来代替。3. 误 : Thanks your help. 正 : Thank you for your help./Thanks for your help.【易错警示】“感谢你的帮助”应表达为“ Thank you for your help./Thanks for your help.”, 介词 for 不能省。4. 误 : There aren't some eggs in the fridge. 正 : There aren't any eggs in the fridge.【易错警示】在否定句或疑问句中 , 表示“一些”的意思时 , 通常要将 some 改成 any 。当疑问句表示建议或者希望得到对方的肯定回答时 , 要用 some 。( )1. —Are these your books ?—______.A. Yes,these are B. Yes,they'reC. No,these aren't D. No,they aren't D2. This is not Lily's quilt. (she) is green.3. 你的书包里有一些钢笔吗?Are there pens in your schoolbag ?4. 谢谢你的礼物。 your gift.HersanyThankyoufor单项填空。( )1. —Your jacket is very nice. —______.A. You're welcome B. ThanksC. That's all right D. No problem B考点一 : thank 的用法( )2. Thank you ______ your help.A. in B. at C. for D. of C( )3. —It's very kind of you to help me. Thank you very much. —______.A. Thank you,too B. I'm sorryC. You're welcome D. Help yourself CⅠ. 单项填空。( )1. —______ the picture ?—It's very nice.A. What B. What colorC. How D. What about D考点二 : What about 的用法( )2 .—What about ______ your teache...