22.句型转换(课件)小学英语语法专项系列(外研版三起)
句型转换是什么?句型转换是指在保持句子核心语义不变的前提下,通过改变句子的结构、时态、语态或句式(如肯定句、否定句、疑问句等),考查对语法规则的灵活运用能力。小学阶段主要涉及肯定句与否定句转换、陈述句与疑问句转换(一般疑问句/特殊疑问句)、时态转换等。
考试中我们经常会考关于句型转换的哪些知识点呢?句型转换肯定句与否定句转换(be动词/情态动词/实义动词)?陈述句与一般疑问句转换(含be动词/情态动词/实义动词)陈述句与特殊疑问句转换(用what/who/where等提问)
含be动词/情态动词:直接加not(如isn’t/aren’t/can’t)。?例句:Sheishappy.→Sheisn’thappy.?例句:Theyarestudents.→Theyaren’tstudents.?例句:Hecansing.→Hecan’tsing.?例句:Wemusthurry.→Wemustn’thurry.?考点1:肯定句与否定句转换
含实义动词:借助don’t/doesn’t/didn’t+动词原形,注意some→any等变化。?例句:Ilikereadingbooks.→Idon’tlikereadingbooks.?例句:Heplaysbasketballeveryday.→Hedoesn’tplaybasketballeveryday.?例句:Sheateanapple.→Shedidn’teatanapple.?例句:Theyboughtsomegifts.→Theydidn’tbuyanygifts.考点1:肯定句与否定句转换
经典例题解析【例1】?例句:Heisastudent. 否定句:_________________________.【答案】Heisn’tastudent.【考点】be动词(is)的否定转换。【解析】be动词直接加not,isnot缩写为isn’t。Heisn’tastudent.
经典例题解析【例2】?例句:Theycanswim. 否定句:_________________________.【答案】Theycan’tswim.【考点】情态动词(can)的否定转换。【解析】情态动词can直接加not,缩写为can’t。Theycan’tswim.
经典例题解析【例3】?例句:Shehassomemilk. 否定句:_______________________________.【答案】Shedoesn’thaveanymilk.【考点】实义动词(has)的否定转换及some→any的用法。【解析】实义动词(has)的否定转换及some→any的用法。Shedoesn’thaveanymilk.
即学即练(一)1.?Thecatisunderthechair.→__________________________________________________.2.?Wemustleavenow.→__________________________________________________.3.?Helikesapples.→__________________________________________________.Thecatisn’tunderthechair.Thecatisn’tunderthechair.
一、改否定句。Wemustn’tleavenow.Hedoesn’tlikeapples.
即学即练(一)4.?Therearesomebooksonthedesk.→__________________________________________________.5.?Sheplaysthepianoeveryday.→__________________________________________________.Therearen’tanybooksonthedesk.一、改否定句。Shedoesn’tplaythepianoeveryday.
()1.?Hedon’tlikefish._______________()2.?Therearen’tsomepens