2017年秋人教版（河北专版）九年级英语上册练习 Unit 7 单元语法小专题.doc

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1、单元语法小专题(GrammarFocus)语法精讲[来源:gkstk.Com]含有情态动词的被动语态本单元的语法重点是：含有情态动词的被动语态。其结构为：情态动词(should，must，may，can，could等)＋be＋及物动词的过去分词。[来源:学优高考网gkstk]1．含有情态动词的被动语态的常见句式：(1)肯定句结构为：主语＋情态动词＋be＋及物动词的过去分词(＋by＋宾语)．如：Yourhomeworkshouldbefinishedbyyourself.你应该自己完成作业。(2)否定句结构为：主语＋情态动词＋not＋be＋及物动词的过去分词(＋by＋宾语)．如：Thebook

2、can'tbetakenoutofthereadingroom.这本书不能被拿出阅览室。(3)一般疑问句结构为：情态动词＋主语＋be＋及物动词的过去分词(＋by＋宾语)?回答：Yes，主语＋情态动词．/No，主语＋情态动词＋not.如：—Shouldtheseyoungtreesbewateredeveryday？应该每天给这些小树浇水吗？—Yes，theyshould./No，theyshouldn't.对，应该。/不，不应该。(4)特殊疑问句结构为：疑问词＋一般疑问句？如：Whatshouldstudentsbeallowedtodo？应该允许学生们做什么？2．含情态动词的主动语态变被动

3、语态的变化步骤：(以should为例，见下图)[来源:学优高考网gkstk]语法精练Ⅰ.用括号内所给单词的适当形式填空。1．Moretreesshouldbe_planted(plant)thisyear.2．Musttheworkbe_finished(finish)by6：30thisafternoon?3．Wherecanthelostboybe_found(find)?4．ThankstotheInternet，differentkindsofinformationcanbe_learned(learn)inashorttime.5．Thewatershouldnot_be_put(

4、notput)here.[来源:学优高考网]6．Thebadfoodshouldn'tbeeaten(eat)．7．Thestarscannot_be_seen(notsee)inthedaytime.8．Canthiskindofbikebe_bought(buy)inthatshop?9．Thefruitshouldbe_kept(keep)wellduringwinter.10．Sheshouldn'tbe_allowed(allow)togooutalone.Ⅱ.按要求完成下列句子，每空一词。11．Nobodycananswerthequestion.(改为同义句)Thequesti

5、oncan'tbeansweredbyanybody.12．Weshouldcleanourteethtwiceaday.(改为被动语态)Ourteethshouldbecleanedtwiceaday.13．Canyoutakegoodcareofthechildren？(改为被动语态)Canthechildrenbetakengoodcareofbyyou?14．Theclassroommustbecleanedafter_school．(对画线部分提问)Whenmusttheclassroombecleaned?15．Wemustwashourhandsbeforemeals.(改为被

6、动语态)Ourhandsmustbewashedbeforemeals.Ⅲ.根据汉语意思完成句子，每空一词。16．更远的恒星有一天可能被参观。Fartherfixedstarsmaybevisitedoneday.17．你不应该在动物园里给动物喂食。Animalsshouldn'tbefedbyyouinthezoo.18．青少年不应该被允许吸烟。[来源:学优高考网]Teenagersshouldnotbeallowedtosmoke．19．我们被允许周六晚上去看电影。Weareallowed_togotothemoviesonSaturdayevening.20．不应该让他那么做。Hesh

7、ouldn'tbeallowedtodolikethat.