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数词
一、常考易错数词Lesson4基数词序数词one,two,three,four,five,six,seven,eight,first,second,third,fourth,fifth,sixth,nine,ten seventh,eighth,ninth,tentheleven,twelve eleventh,twelfththirteen,fourteen thirteenth,fourteenthfifteen,nineteen fifteenth,nineteenthtwenty,forty,fifty,eighty,ninetytwentieth,fortieth,fiftieth,eightieth,ninetiethtwenty-one,thirty-three twenty-first,thirty-thirdforty-four,fifty-five forty-fourth,fifty-fiftheighty-eight,ninety-nine eighty-eighth,ninety-nintha hundreda hundredth
二、数词的用法.确数eight hundredstudents/five thousandteachers/twomillion workers概数hundreds ofstudents/thousands ofteachers/millionso fw or ke rs(特别注意two thousandof thestudents这些学生中的两千个).表示编号或次序,用基数词Lesson Ten=the tenthlesson(第十课)Page Five=the fifthpage(第五页)Room105f Roomone0fiveBus No.13f BusNumber ThirteenTel.No.7655609-*Telephone Numberseven-six-doublefive-six-O-nine
1.年份2002:twenty thousandand two;1976:nineteen seventy-six.日期在12月1H:on Dec.1st onthe firstof December;在2002年11月8日on Nov.8th,
2002.(Tip:有日用on,无日用in)时间⑴钟点+分钟(顺读法)如at11:56at elevenfifty-six
(2)分钟+to/past+r钟点(倒读法)如:at4:30at halfpast fourat5:05at fivepast fiveat6:45at fifteento seven(at aquarterto seven)
2.小数的读法
5.7f fivepoint seven,
0.16-*zero pointone six.
3.“半”的表达l/2fhalf,半小时f halfan hour,
1.5小时Jone anda halfhours或onehour anda half
6.序数词前面加the时,表示顺序,加a/an时表示“再
一、又一”如:The thirdlesson israther difficult.(第三课相当难)Shall weread thetext athirdtime(我们把课文再读第三遍,好吗?)
7.年代in the1990s(在二十世纪九十年代)年龄in histhirties(在他三十多岁时)in ones+整十复数
8.a five-week holiday(5周的假期)a nine-year-old boy(9岁的男孩)
9.分数分子基数词,分母序数词当分子大于1时,分母要用复数形式如2/3two thirds,1/5one fifth
10.数词+more=another+数词如one morebook=another book,three morebooks=another threebooks(注意次数表达once一次;twice两次three times三次)情态动词(+动词原形)
①表示猜测可能性时must肯定,一定may可能can不可能may not可能不
②had better(not)do sth.最好(不)做某事
③have to do sth.不得不做某事©need sth./don51need sth.(不)需要某物needn9t dosth./don needtodosth.不必做某事sth needdoing/to bedone某事需要被做
⑤牢记几个回答能力Can youswim nowYes,I can./No,I cant.Could youswim lastyear Yes,I could./No,I couldnt.征求许可Can Iborrow yourbike Yes,you can./No,you cant/mustnt.Could Ismoke hereYes,you can./No,you cant.May Iuse yourbike Yes,you may./No,you cant.Must Ifinish myhomework todayYes,you must./No,you neednt/dont needto/dont haveto.。