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1、Unit 4Wheres my schoolbag?第三課時Section A(Grammar Focus3c)單元語法精講一、where的用法where是疑問副詞,意為“(在)哪里;(在)什么地方”,用來對表示地點的副詞或介詞短語進行提問。由where等疑問詞引導(dǎo)的疑問句叫做特殊疑問句。句型Where is/are主語(人或物)?其中is后接單數(shù)意義的主語,are后接復(fù)數(shù)意義的主語。eg:Where are your books?你的書在哪里?回答時,用句型“主語is/are表示地點的介詞短語”。主語一般用it,he,she或they來代替句中的單復(fù)數(shù)主語。eg:Where is your
2、sister?你姐姐在哪里?She is in the room.她在房間里。【注意】where is可縮寫成wheres,但where are則不能縮寫。二、方位介詞:on,in,under介詞on在表示地點時,意為“在上面”,指某人或某物在另一物體上面(表面接觸,上下緊貼)。in在表示地點時,意為“在里面(內(nèi)部)”。under表示“在下面”與on互為反義詞。eg:on the desk在課桌上面in the bedroom在臥室under the bed在床下面三、I dont know.我不知道。主要用于你無法回答他人詢問的問題時,常說“I dont know.”為了表示禮貌,也可以在前
3、面加上sorry或Im sorry。dont是do not的縮寫形式,do為助動詞,無實際意義,幫助實義動詞know構(gòu)成否定句。單元語法強化訓(xùn)練一、單項選擇。1._ my keys?Theyre in the schoolbag.AWheresBHow areCWhere are DWhat are2Where is my schoolbag?Its _ the desk.Ain BforCunder DatC C 3Wheres the map?Its _ your fathers room.Ain BonCunder Dat4Wheres my hat?Its _ your head.Ai
4、n BonCunder DAt5Wheres my telephone?_Is it in your bag?AIts not mine BI dont knowCYoure welcome DNo,its under the chairBBAWhereson二、根據(jù)漢語完成句子。6你的電腦在哪里?在書桌上。_your computer?Its _the _7他的書在哪里?在書柜里。_his books?Theyre _the bookcase.8我不知道。I _deskWhere are indont know9尺子在椅子下面嗎?_the ruler _the chair?10帽子在床上。T
5、he hat _the bed.Is underis on 三、按要求完成句子。11Her ruler is in the pencil box.(變?yōu)榉穸ň?Her ruler _in the pencil box.12The watch is under_the_chair(對畫線部分提問)_the watch?13The keys are on_the_table(對畫線部分提問)_the keys?14His pencil box is in his schoolbag.(變一般疑問句)_is not Wheres Where are Is his pencil box in his schoolbag?