Unit 2 語法（知識清單） -2023-2024學年英語三年級下冊單元速記·巧練系列（譯林版三起）

Unit2Inthelibrary語法精講精練(含答案)一、否定祈使句1.否定祈使句否定祈使句一般用來表示勸告、禁止或警告等?；窘Y(jié)構(gòu)為:Don't+動詞原形(+其他).意為“不要做某事”?；卮鹂梢允恰癐’msorry./Allright./OK./Yes.”等。如:Don'tshoutinthelibrary.不要在圖書館喊叫。2.確定祈使句變否定祈使句(1)通常在確定祈使句的動詞前面加“don’t”。如:Run!快跑!→Don’trun!不要跑!(2)let引導的祈使句，否定形式在動詞前加not。如:Let'sgotothezoo我們?nèi)游飯@吧?！鶯et’snotgotothezoo.我們不要去動物園。3.否定祈使句的其他形式(1)No+動詞-ing.如:Noparking.禁止停車。Nosmoking.禁止吸煙。(2)No+可數(shù)名詞復數(shù).如:Nophotos.禁止拍照。語法提優(yōu)練1一、單項選擇。()1.________eatontheunderground.A.No B.Not C.Don't()2.—Don'ttalkhere.—________A.Yes,please. B.I'msorry. C.Hownice!()3.________thewindow.It'stoocold.A.Pleaseopen B.Don'topen C.Don'tclose二、按要求完成句子。1.Talkinclass.(改為否定句)________________inclass.2.Don'tlistentotheparrot.(改為定句)________________theparrot.3.Openthewindow,please.(寫出義句)________thewindow,please.二、用“Wouldyoulike...?”征求對方意見1.含義“Wouldyoulike...?”用于詢問對方是否情愿做某事或是否想要某物，意為“你情愿?嗎?/你想要嗎?”?！癢ouldyoulike”后面既可以加名詞、名詞短語“Wouldyoulike”又可以加不定式“todosth.”。意為“想要去做某事”如:Wouldyoulikeanicecream?=Wouldyouliketohaveanicecream?你想吃個冰淇淋嗎?2.回答對“Wouldyoulike...?”進行回答時確定回答為“Yes,please.”,意為“好的,太感謝了?！狈穸ɑ卮馂椤癗o,thanks/thankyou.”,意為“不了,感謝?！比?—WouldyoulikeanewT-shirt?你想要一件新T恤衫嗎?—Yes,please.好的,太感謝了。/No,thanks.不了,感謝。3.wouldlike與wantwouldlike中的would是情態(tài)動詞。可將wouldlike看作一個整體,此時它的用法與want類似。詢問對方是否想要某物時,還可以用“Doyouwant...?”。如:Wouldyoulikeacake?=Doyouwantacake?你想要一個蛋糕嗎?語法提優(yōu)練2一、用所給單詞的正確形式填空。1.________(would)youlikeanapplepie?2.________(do)yoursisterlikeanimals?3.Johnwouldlike________(have)somewater.二、推斷下列情境與所給句子是(T)否F)相符。()1.當你想知道對方是否想要一顆糖果時,你會說:CanIhaveasweet?()2.媽媽給你一個蘋果，但你不想吃,你會說:No,thankyou.三、依據(jù)上下文和首字母提示，填寫正確的單詞補全對話。A:Hello,YangLing.B:Shh!Don'ts________inthelibrary,WangBing.A:I'ms________.W________y________likeahotdog?B:No,t________.Don'te________here.A:OK.W________a________somewater?B:Yes.Butdon'tt________again.三、want的用法want作動詞,意為“想要”,用法如下：1.wantsth.,意為“想要某物”。sth.是something的縮寫形式,一般指名詞:apple、pencil、rubber、book等。如:Iwantanewjacket.我想要一件新夾克衫。Doyouwantanegg?你想要個雞蛋嗎?2.wanttodosth.意為“想要做某事”。do指的是動詞原形，表達主語想要做的動作。如：Shewantstosleep.她想睡覺。3.wantsb.todosth.意為“想要某人做某事”。sb.是somebody的縮寫形式,是want的賓語。如:Iwanthimtoeatthiscake.我想要他吃這個蛋糕。Lisawantsmetocome.麗莎想要我來。語法提優(yōu)練3一、單項選擇。()1.Mybrotherwants________asweet.A.eat B.toeat C.eating()2.Wouldyou________somemilk?A.have B.want C.like()3.Doyou________somemilk?A.want B.wantto C.towant()4.Mymumwantsme________thewindow.A.close B.toclose C.closeto二、從方框中選擇合適的句子補全對話。A:1.________A.Yes.IlikeA.Yes.Ilikeapplepies.B.Doyoulikehotdogs?C.Goodmorning,Alice.D.Wouldyoulikesome?A:2.________B:No,Idon't.A:Whataboutapplepies?B:3.________A:Look!Ihavesomeapplepies.4.________B:Yes,please.Yummy!參考答案(一)否定祈使句一、1.C2.B3.B二、1.Don'ttalk2.Listento3.Close(二)用“Wouldyoul