情态动词can表示能力的用法-2025-2026学年六年级英语下册语法重难点精讲（教科版五四制）

六下外研版（五四制） 【寒假专版】 新重难点精讲 寒假专版 【语法专题】情态动词cn表示“能力”的 用法 初中外研版六年级下册（五四制） 语法精讲 语法概述：情态动词cn表示“能力”时，意为“能：会”，表示具备做某事的能力，在句中通常 位于主语之后，实义动词之前，后接动词原形。 一、重难点讲解 重难点一：can表示“能力”的肯定句、否定句和疑问句结构讲解： 肯定句：主语+can+动词原形+其他。表示“某人能做某事”，can无人称和数的变化。 She can swim very fast. 否定句：主语+can+not(can't/cannot)+动词原形+其他。表示“某人不能做某事”。 He can't ride a bike. 疑问句：Can+主语+动词原形+其他？肯定回答：Yes,主语+cam:否定回答：No,主语+can't。 用于询问“某人能否做某事”。 Can you speak English?-Yes,I can./-No,I can't. 真题再现： 1.(2024 山东烟台期中，外研版)My little brother一_play the piano well A.can B.is C.do D.does 答案：A解析：句意为“我的弟弟钢琴弹得好”，表示能力，用can。 2.(2023河北秦皇岛月考，外研版)一_you play football with us??一Sory,I一.I have to do my homework. A.Can;can B.Can;can't C.Do;don't D.Are;aren't 答案：B解析：问句询问能力用Can,答句根据“不得不做作业”可知是否定回答，用can't。 六下外研版（五四制） 【寒假专版】 新重难点精讲 重难点二：can与be able to表示“能力”的区别讲解： ca只有现在时（can)和过去时(could)两种时态，强调先天具备或后天习得的一般能力。 I can sing English songs.(现在能力) She could dance when she was five.(过去能力) be able to可用于各种时态，表示通过努力或克服困难后获得的能力，强调具体做成某事的能力。 He will be able to finish the work on time..(将来时态) They were able to climb the mountain yesterday.(过去成功做到) 真题再现： l.(2024辽宁大连期末，外研版)After practicing for a month,Lucy一swim across the river finally.. A.can B.could C.was able to D.is able to 答案：C解析：句中有“finally”强调通过练习后成功做到，且时态为过去时，用was able to。 2.(2023山东济南期中，外研版)My father一speak three languages when he was young. A.can B.could C.is able to D.was able to 答案：B解析：“when he was young”表示过去，强调过去的一般能力，用could。 重难点三：cn表示“能力”的常见固定搭配及易错点讲解： 固定搭配：can+动词原形，不能加动词的-ing形式或第三人称单数形式。 错误：He can plays basketball.正确：He can play basketball 易错点：can表示“能力”时，不能与其他情态动词（如must,may)连用，也不能用于进行时或 完成时。 错误：She is cansing.正确：She can sing. 真题再现： 1.(2024天津河西区期末，外研版)下列句子中语法正确的一项是一 A.Tom can swimming fast. B.My sister can't to ride a horse. C.Can your mother cook delicious food? D.They cans speak Chinese. 答案：C解析：A项can后接动词原形，swimming错误；B项can't后接动词原形，to ride 错误；D项can无第三人称单数形式，cans错误；C项疑问句结构正确。 2.(2023山西太原月考，外研版)What can your pet dog do?一It一un and jump. A.can 六下外研版（五四制） 【寒假专版】 新重难点精讲 B.is C.do D.will 答案：A解析：问句询问宠物狗的能力，答句用can表示“能跑能跳”，can后接动词原形 nun和jump。 易错点综合演练 I单项选择（直击重难点》 1.My little sister-play the violin very well A.can B.is C.do D.does 2.-you swim across the river?-No,I.It's too wide A.Can;can B.Can;can't C.Do;don't D.Are;aren't 3.After months of practice,Lily_pass the English exam finally. A.can B.could C.was able to D.is able to 4.Which sentence is grammatically correct? A.He can plays football B.She can't to dance. C.Can your brother speak Japanese? D.They cans sing English songs. Ⅱ用所给词的适当形式填空（强化句型结构) 1.My brother(can not)ride a bike when he was five. 2._(can)you help me with my math homework? 3.She_(be able to)finish the work on time yesterday. 4.Tom_(can)swim fast now,but he couldn't last year. 3 六下外研版（五四制） 【寒假专版】 新重难点精讲 5.-What(can)your pet cat do?-It(can)catch mice. 血.短文填空（综合运用can) 用can,cant,could,was/were able to的适当形式填空，使短文完整通顺。 Hello,I'm Amy.I have a little brother,Tom.He is six years old.Tom 1.-(can)read and write now, but he 2.-(can)do it last year.My father 3.-(could)play the piano when he was young,and now he teaches Tom to play.Last week,Tom 4.-(be able to)play a simple song after practicing hard.I 5. -(can)play basketball well,so I often play with my friends after school.Sometimes Tom wants to join us,but he 6._(can)run fast enough.We all love him very much. V.连词成句（聚焦句型结构） 1.can,sing,she,very,well,English,songs ( 2.you,can,play,the,guitar (? 3.not,can,he,drive,a,car (. 4.could,when,she,was,swim,ten,she(.) 5.able to,finish,they,were,the,task,finally (. V.按要求改写句子（巩固否定、疑问句式） 1.He can speak French.(改为否定句) 2.They can swim in the river..(改为一般疑问句并作肯定回答) 3.She could ride a bike when she was eight..(对划线部分提问) 4.Tom is able to solve the problem.(改为同义句，用can) 参考答案 L单项选择：1.A2B3.C4.C Ⅱ.用所给词的适当形式填空： 1.couldn't 2.Can 3.was able to 4.can 5.can;can 4 六下外研版（五四制） 【寒假专版】 新重难点精讲 Ⅲ.短文填空： 1.can 2.couldn't 3.could 4.was able to 5.can 6.can't V.连词成句： 1.She can sing English songs very well. 2.Can you play the guitar? 3.He cannot drive a car. 4.She could swim when she was ten. 5.They were able to finish the task finally. V.按要求改写句子： 1.He can't speak French. 2.Can they swim in the river?Yes,they can. 3.When could she ride a bike? 4.Tom can solve the problem. 5