2024-2025学年新教材高中英语Unit1FoodforthoughtSectionⅢGrammar-情态动词一学案外研版必修第二册

PAGEUnit1FoodforthoughtSectionⅢGrammar—情态动词(一)新知导引选择适当的情态动词填写下面教材中的句子并体会它们的语法特征：beableto/dare/haveto/hadbetter/need/must/can1．I'veenjoyedfoodfrombothcountrieseversinceI________________holdaknifeandfork—andchopsticks!2．ButtherearestillsomedishesthatDad________________nottryevenaftermanyyearsofmarriagetomymother.3．He________________havethoughtIwasjoking.4．Dad________________cookasuper“fullEnglishbreakfast”ofbacon,eggs,beans,sausagesandtoastwithbutter—MumandIjust________________findawaytogethimintothekitchen!5．Mumsayswe________________noteattoomuchroastfoodasitmaymakeussufferfromheatinsideourbodies...6．“You________________nottryitifyoudon'twantto，”Mumsaid...语法精讲一、基本特征1．情态动词有肯定的词义，不能单独作谓语，需和实义动词或系动词一起作谓语。ShecanspeakEnglishthoughsheissix.虽然她才6岁，但她会说英语。2．情态动词一般无人称和数的改变，个别情态动词有现在时和过去时两种时态改变。Theymustbeintheclassroom.他们肯定在教室里。3．构成否定句时，not放在其后面。Theyoungmancan'tcarrythebigstone.这个年轻人搬不动那块大石头。4．情态动词后接动词原形。Joggingcanbeharmfultothehealth.慢跑可能会对身体健康有害。二、beableto的用法1．beableto后跟动词原形，表示详细的实力，与can的用法相近。Iamnotabletoansweryourquestion.我回答不了你的问题。2．beableto与can/could的区分。(1)beableto有更多的时态形式，can只有一般现在时和一般过去时。Willyoubeabletocometomorrow?你明天能来吗？I'msorryIhaven'tbeenabletoansweryourletterintime.很愧疚我没能刚好给你回信。(2)was/wereabletodosth.表示过去胜利做成了某事，相当于succeededindoingsth.。could仅表示客观上有某种实力，不说明实施该实力后的结果。Themathsproblemwashard,butIwasabletoworkitout.这道数学题目虽难，但是我能把它做出来。Bythetimeshewaseight,shecouldreadGreekandLatin.她八岁就会读希腊文和拉丁文了。(3)beableto可用在may/might，want之后。Iwanthertobeabletouseacomputer.我希望她能运用电脑。[即学即练]选词填空(can/beableto)(1)Ifyouhaveagoodsleep,youwill________________workoutthisproblem.(2)WhenIwasyoung,I________climbanytreesinthewoods.(3)Who________answerthisquestion?(4)Hemight________________fixyourcar.三、haveto的用法1．haveto意为“不得不，必需”，后跟动词原形。Ihavetobeoffnow.Mymumiswaitingforme.我得走了。妈妈在等我。2．haveto与must的区分。(1)must强调说话者的主观意愿；haveto强调客观上的必要性。Thelastbusleft,andhehadtowalkhome.最终一班公共汽车走了，他只好步行回家。ImustfinishtheprojectbyFriday.周五前我必需完成这个项目。(2)mustn't不许，不行以，表示禁止；nothaveto不必。Youdon'thavetodotheworkrightnow.你现在不必做这项工作。Youmustn'tplayfootballinthestreet.你千万不要在大街上踢足球。[即学即练]完成句子(1)我还想了解一下学这门课程得付多少钱。I'dalso1iketoknowhowmuchI________________forthecourse.(2)新法律禁止人们酒后驾车。Thenewlawstatesthatpeople________________afterdrinkingalcohol.(3)我们不必焦急，因为时间很充裕。We________________hurry,forthere'splentyoftime.(4)我们必需在6点以前到家。We________________homebysix.四、hadbetter的用法hadbetter后跟动词原形，表示“最好……”，其否定形式在hadbetter后加not。Wehadbettergettherebeforeitgetsdark.我们最好天黑前到达那里。You'dbetternottalksoloudly.你最好不要这么大声说话。[即学即练]完成句子(1)你最好不要乘飞机去那里。You________________therebyplane.(2)你最好当心谨慎。You________________watchout.五、dare与needneed和dare既可用作情态动词，也可用作实义动词。用作情态动词时，主要用于否定句和疑问句中；用作实义动词时，可用于各种时态。(1)用作情态动词—Areyoucomingwithme?—Ican't,Alice.Idaren't.——你要和我一起去吗？——不行，爱丽丝。我不敢。It'squitewarmhere;weneedn'tturntheheatingonyet.这里很暖和，我们还不必开暖气。(2)用作实义动词Youdon'tneedtodoityourself.你不必亲自做这件事。MostpeoplehateHarrybuttheydon'tdaretosayso.大多数人对哈利敢怒不敢言。[即学即练]单句语法填空(1)Dareyou________(tell)herthenews?(2)Idaren't________(go)outaloneatnight.(3)Hedares________(say)whateverhewantstosay.(4)Youneedn't________(come)ifyouarebusy.(5)Ineed________(get)somesleep.Ⅰ.单词语法填空1．Thisisquiteimportant,becauseitisdirectly________(relate)toyourcommitment.2．Ourhostssharedmanyoftheirexperiencesand________(recommend)wonderfulplacestoeat,shop,andvisit.3．Thisisn'tthefirsttimethattechnologyhaschangedour________(manner)．4．Exercisingmakesyoumoreawakeandready________(handle)whateverisaheadofyoufortheday.5．Larrytoldherthathehadalreadyputoutthefireandsheshouldnotmove________casesheinjuredherneck.6．Becauseacollegecommunitydiffers________thefamily,manystudentswillstruggletofindasenseofbelonging.7．Weareaddictedto________(buy)newthings.8．Bendyourknees________(slight)andreachoutyourarmsliketreebranches,naturallyandsoftly.Ⅱ.选词填空(可变换形式)eq\x(beableto/haveto/hadbetter/dare/need)1．________________ItellTomwhathappenedtoday?2．She________notsaywhatshethinks.3．________youletoutthenewstothepublic?4．Thelittleboy________________dolotsofhousework,forhisparentsaresufferingfromillness.5．He________________speaktwoforeignlanguages.6．You________________gethomebeforemidnight.7．Wedidn't________________answerthequestionyesterday.8．You________________notgoout,hadyou?9．Shedoesn't________________tocometoschoolatpresent.10．Iwill________speakEnglishinanotherfewmonths.Ⅲ.完成句子1．你别担忧我，我能照看好自己。Don'tworryaboutme,I________________________myself.2．吉姆终于抑制住了生气，从而避开了一场殴斗。Jim________________________hisangerandavoidafight.3．你不得再拖延了，记住，切莫依靠明天。You________________________itoffanylonger,remember,tomorrownevercomes.4．必需声明，这种疾病是人类已知的最为困难的疾病之一。It________________________thatthisillnessisoneofthemostcomplexconditionsknowntoman.5．我须要今日干完这活吗？________________________theworktoday?6．这辆自行车须要修理。Thebike________________________________________________________________________.7．星期天我们不用去上学。We________________________________onSundays.8．我非得给经理写封信不行。I________________________tothemanager.9．而且，你最好保持均衡的饮食。What'smore,you____________________abalanceddiet.10．你怎么敢对你父亲说那种话？How________________thattoyourfather?eq\x(温馨提示：请完成课时作业二)SectionⅢGrammar—情态动词(一)新知导引1．wasableto2.dare3.must4．can;haveto5.hadbetter6.need语法精讲二、