語法專題三：數(shù)詞第第頁高二年級英語學(xué)案編號(G003)評價：學(xué)生姓名：課題：數(shù)詞授課教師：上課時間：第周一．分類基數(shù)詞和序數(shù)詞二.基數(shù)詞的讀法和寫法寫法:每3位點(diǎn)一逗號1,123,456,789第1個逗號_______________(千)第2個逗號______________（百萬）第3個逗號______________（十億）讀法：百位與十位加and;十位與個位加“—”125_______________________________ 1,089______________________________22,377____________________________ 1,255,000___________________________三.序數(shù)詞1.基數(shù)詞變序數(shù)詞口訣:一二三要全變，其他th加后面，f替_______,八______,九______，ty變成________。2.注意(1)冠詞的選擇：the+序數(shù)詞+n.表“_______”thesecondtime“第二次”a/an+序數(shù)詞+n.表“_______”asecondone“再來一個”eg.We'vetrieditthreetimes．Mustwetryit___fourthtime?定語從句中，當(dāng)先行詞被序數(shù)詞修飾時，引導(dǎo)詞只能用_______;eg.Thisisthefirstbook_________Iboughtyesterday.四.三明大法1.前有數(shù)字，不加s，不加of100個學(xué)生_____________________500個學(xué)生_____________________2.前無數(shù)字，加s加of成千上萬的學(xué)生______________________成百上千的學(xué)生______________________五．功能１.表編號：第五課 _______________/___________(注意大小寫)801房間 ________________3路車 ________________四樓 ________________地下2層 2.表時間點(diǎn):整讀法：用o’clock12點(diǎn)________________順讀法:7:20_______________逆讀法: 半小時以內(nèi)_________ eg.________________________半小時以上_________ eg.________________________15分/45分用____________eg.___________________________30分鐘用_______________eg.___________________________7:15_________________7:20_______________7:30_______________7:45_________________7:50_______________3.表日期:美式：月,日,年Oct.1st,2012讀法：__________________英式：日,月,年1stOct.,2012讀法:_____________________

讀法：May5（讀作Maythefifth）也可以表示為thefifth（5th）ofMay4.半數(shù)表達(dá)法:半小時________________一個半小時________________________________兩個半小時________________/________________5.分?jǐn)?shù)表達(dá)：__________________________________________________________1/3:____________2/3:____________1/2:____________1/4:____________但常用aquarter考點(diǎn)：Twothirdsofthestudents________(be)girls.Threefifthsoftheair_________(be)dirty.倍數(shù):兩倍_______三倍_______四倍_______eg.地球是月球的49倍。Theearthis__________________________themoon.小數(shù)表達(dá)法（與漢語讀數(shù)一致）點(diǎn)用_____________eg.21.375______________8.數(shù)字的復(fù)數(shù)用法(1)年代表達(dá):20世紀(jì)80年代______________或______________(2)在某人…….歲的時候______________在某人二十多歲的時候______________在某人三十多歲的時候______________特例：在某人十多歲的時候___________另外的……請再/多給我5分鐘的時間another+數(shù)字+n._____________________________數(shù)字+more+n._____________________________數(shù)字+n.+more_____________________________9.每，每隔every+基數(shù)詞+名復(fù)every+序數(shù)詞