Need和dare的用法小结和练习含答案.pdf

Need 和 dare 的用法小结和练习含答案Need/DareNeed/Dare 的用法的用法与练习（含答案）与练习（含答案）Need 的用法1.need 作情态动词need 作情态动词用时，主要用于否定句否定句和疑问句疑问句中，形式为 need not原形动词need辅助后面实义动词，有一定的词义，但不能独立使用)例：Youneed not hand in the paper this week.情态助动词+主动词主语+复合谓语+宾语+状语注意用 need 提问时，肯定回答为 must，否定回答为 neednt 或 dont have to例：Need I finish the work today?（need 助动词）Yes,you must.是的No.you neednt/dont have to.不，你不必2.need 作实义动词作实义动词实义动词，need 和普通动词一样，有人称、数和时态的变化，后接名词、代词、不定式或动名词做宾语，可用于任何句子need 肯定陈述句中独立做谓语，而疑问和否定则要借助于 do 构成如：Do you need a dictionary?你需要词典吗?1）如果主语是人，句型如下：sb.need(s)sth.某人需要某物sb.need to do sth.某人需要去做某事例：I need to pass the exam.我需要通过这次考试。

He needs to learn English.他需要学习英语You need my help.你需要我的帮助主语+谓语+宾语2）如果主语为某物某物需要某种方法处理时，need之后可接不定式短语，但一定为被动语态；也接doing，但一定为主动语态句型如下：Sth.need doing 某事需要被做=need to be done特别注意两点：.主动形式的动名词 doing 具有被动的含义；也接动名词，但一定为主动语态该动名词可以改为其动词不定式的被动形式而句子的意义不变例如：.例：The flowers need watering.=The flowers need to be watered.这些花需要浇水同理：The window needs to be fixed.（正确）=The window needs fixing（正确）（这窗子需要修理The window needs being fixed（错误）3.表过去状况时a.didnt need to原形动词表示“当时不必（而且亦未如此做）”，直陈语气例：He didnt need to attend the party,so he stayed home.（当时他不必参加派对，所以就留在家里。

1/3Need 和 dare 的用法小结和练习含答案b.need not have过去分词表示“当时不必（但却如此做）”例：He neednt have attended the party,but he went there just the same.（当时他可以不必参加派对，但他还是去了后者也就是虚拟语气：neednt+完成式“表示本来不必做某事而实际上做了某事”例：You neednt have waited for me.4.注意 need 在反意疑问句中的变化a实义动词，就是一般动词，需要加do/does/did 构成例：He needs to go,doesnt he?（needs 为动词）（他需要去，不是吗？)He doesnt need to go,does he?（他不必去，对吧？)b情态动词，直接用 need 构成例：He need not go,need he?(need与 not 连用，情态动词，就是助动词）（他不必去，对吗？)DareDare 的用法（语法成分与的用法（语法成分与 needneed 相同）相同）1.dare 作情态动词作情态动词用时,常用于疑问句、否定句和 if/whether 从句中,没有人称和数的变化，但是有过去式（dared），后接动词原形。

例：How dare you say Im unfair?He darent speak English before such a crowd,dare he?If we dared not go there that day,we couldnt get the beautiful flowers.I wonder whether he dare do it.反意疑问句中：He darent speak English before such a crowd,dare he?2.dare 作实义动词可作实义动词用时，即一般动词，具有人称、时态和数的变化在肯定句中，dare 后面常接带 to 的不定式在疑问句和否定句中，dare 后面可接带 to 或不带 to 的不定式例：Do you dare to walk in the dark?你敢黑夜走路吗？He doesnt dare(to)meet his teachers eyes.他不敢与老师对视He dared to go.（当时他敢去3.习惯用法：a.I daresay+(that）从句我敢说 (daresay 是一个词，亦可作 dare say)例：1 daresay he will be late again.（我敢说他又会迟到。

b.How dare+一般陈述句?怎敢？例：How dare you say such a thing to me?（你怎敢在我面前说这种话？)练习1.You _ worry about me.Its nothing serious.A.cantB.mustntC.needntC.needntD.wont2/3Need 和 dare 的用法小结和练习含答案2.What a beautiful day!You _ take your umbrella at all.A.cantB.needntB.needntC.mustntD.may not3.-Must I return the book by the end of next month?-_.you can keep it as long as you like.A.No,you mustntB.No,you cantC.Yes,you have toD.No,you needntD.No,you neednt4.My little son _ out alone at right.A.dare not to goB.dares not to goC.doesnt dare to goC.doesnt dare to goD.dares not go5.-Sorry,I am late.-Why,you _ to the company today,for it is Sunday.A.couldnt have comeB.neednt have comeB.neednt have comeC.neednt comeD.didnt need to come6.-Do you want to buy a big apartment?-Well,it _ be big-thats not important.A.mustntB.needntB.needntC.cantD.wont7.After the glasses fell to the ground and broke,the little boy _ his grandma about it.A.dare not tellB.dare not telling C.dare not to tellD.didnt dare to tellD.didnt dare to tell3/3。