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时间:2019-04-22
《九年级英语unit7teenagersshouldbeallowedtochoosetheirownclothesperiod2sectiona1a_2d导学案》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Unit7Teenagersshouldbeallowedtochoosetheirownclothes【学习目标】1、语法:含有情态动词的被动语态2、重难点:能听懂含有情态动词的被动语态结构的句型。学会谈论语序和不允许做的事情。【预习•合作•探究】1、Idon’tthinksixteen-year-oldsshouldbeallowedtodrive.(1)sixteen-year-olds名词,意为:16岁的青少年,相当于sixteen-year-oldboysandgirls辨析sixteen-year-oldssixteen-year-old与sixteenyearsold①sixte
2、en-year-olds16岁的青少年n在“基数词-名词(单数)-形容词”结构中,形容词后加-s表示一类人或事物Sixteen-year-oldsshouldbeallowedtogooutatnight.②sixteen-year-old十六岁的是由“基数词-名词(单数)-形容词”构成的复合形容词,在句中通常作前置定语,修饰名词。Mypenpalisasixteen-year-oldboy.③sixteenyearsold十六岁,用来描述人的年龄,常句中用作表语。Mybrotherissixteenyearsold.(2)allow(toletsbdosth)vt意为:允许,准许,常用于以下
3、结构中:①allowsbtodosth允许某人做某事Theteacherallowedhimtogointotheclassroom.②allowdoingsth允许做某事Wedon’tallowsmokinginpublicplaces.③be(not)allowedtodosth(不)被允许做某事→Passengersarenotallowedtosmoke.2、Sixteen-year-oldsshouldbeallowedtogettheirearspierced.【解析1】shouldbeallowed是情态动词的被动结构,它是由“情态动词+be+及物动词的过去分词”构成。Manyt
4、reesshouldbeplantedonthemountains.应该在树上植许多树。Studentsshouldbeallowedtogotoschoolbybike.应该允许学生们骑自行车上学。把含情态动词的主动句变成被动句,即把“情态动词+动词原形”改为“情态动词+be+过去分词”,此时,作主语的要用动词承受者。Weshouldcleantheclassroomeveryday.→Theclassroomshouldbecleanedeveryday.该结构的句式转换:31.否定句:在情态动词后加not就行。Thesebookscan’tbereadforchildren.这些书孩子们
5、不能读。2.一般疑问句:直接将被动语态的陈述句的情态动词提到的句首。ShouldAnnbeallowedtowearherownclothes?应该允许安选择自己的衣服吗?3.特殊疑问句:由疑问词加上含有情态动词的被动语态的一般疑问句构成。Whenmustmyhomeworkbehandedin?我的作业必须何时交?4.对含有情态动词的被动语态的一般疑问句的回答,一般应保留原句中的情态动词,但must表示“必须”时,其否定回答用needn’t。—Shouldmyhomeworkbefinishedtoday?我的作业应在今天完成吗?—Yes,itshould./No,itshouldn’t.是
6、的,应在今天完成。/不,不应在今天完成。—Musttheroombecleanedrightnow?房间必须马上打扫吗?—Yes,itmust./No,itneedn’t.是的,必须立即打扫。/不,不必立即打扫。【解析2】getone’searspierced:打耳洞(此处get为使役动词,相当于make或者have,意为“使,让”)get/have+宾语+过去分词:“使某事被做”或“让某人做某事”You’dbettergoandgetyourhaircut.It’stoolong.【形成性检测】I.单项选择。1)__________shouldnotbeallowedtogooutatnig
7、ht.A.Twelve-years-oldB.Twelve-year-oldsC.TwelveyearoldD.Twelveyearsolds2)I_________tohaveapart-timejob.A.amnotallowB.notallowC.don’tallowD.amnotallowed3)Theteachersthinkstudentsshould_______tothei
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