2019高考英语语法突破四大篇第三部分专题4数词讲义.doc
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1、1专题 4 数词框架结构图基数词的构成及作用1.常用基数词表 one eleven thirtytwo twelve fortythree thirteen fiftyfour fourteen sixtyfive fifteen seventysix sixteen eightyseven seventeen ninetyeight eighteen hundrednine nineteen thousandten twentymillion/billion2.基数词构成歌诀1至 12逐个记,13 至 19 teen结尾。20至 90整十位,ty 结尾是后缀。要是表示“几十几” ,连字符十位
2、连个位。若要表示“几百几” ,hundred 之后 and立。若要用于复合形容词,连字符相连不加-s。2注意:(1)hundred,thousand,million,billion 等词前有基数词或 several时,须用单数;与 of连用时,用复数,但其前面不能再加数词。如:six hundred people hundreds of people(2)dozen前有具体数词修饰时,用单数,of 可省略;当 dozen后面接these,those,them,us 等词时,须先接 of,再接这些词,但 dozen仍不加-s;dozens of中的 of不可省。score 用法和 dozen相当
3、,但 of一般不省略。several dozen pencils dozens of studentsthree dozen of these eggs two dozen of themtwo score of eggs scores of books3.基数词的位置常位于 another,all 之后,such,more 之前,可置于 last,next,other 之前或之后。another two days all the ten booksone more apple two such penshis last two days/his two last days4.基数词的句法功能
4、(1)主语Three will be enough.(2)宾语The city has a population of three million.(3)表语The population of this city is nearly two million.(4)同位语They two went to the cinema.(5)定语The river is about eight miles long.序数词的构成及作用1.常用序数词表 first eleventh thirtiethsecond twelfth fortieththird thirteenth fiftiethfourth
5、 fourteenth sixtiethfifth fifteenth seventieth3sixth sixteenth eightiethseventh seventeenth ninetietheighth eighteenth hundredthninth nineteenth thousandthtenth twentiethmillionth/billionth注意:21 以上的多位数词,只将末位数变为序数词,前面的其他位数仍用基数词。如:21sttwenty-first;22ndtwenty-second;33rdthirty-third;100thone hundredth2
6、.序数词的句法功能(1)定语the first day of the weekmy first visit to Beijing (2)表语You are the first to leave.(3)主语The second was even worse.(4)同位语Tom,the first,is here.(5)宾语Do you prefer the first or the second?注意:序数词前一般要加定冠词 the或形容词性物主代词。This is the first one.This is her second visit to Japan.序数词前有时可用不定冠词 a,此时
7、不强调顺序。 “a序数词”相当于 another,表示“又一个,再一个” 。Youd better try a third time.数词的应用1.用于构成分数、百分数、小数one thirdtwo thirds/two-thirds two-fifths of the studentsthirty percent of the water4six point four注意:表示几分之几(或百分之几)的人或物时,须在分数(或百分数)和人或物之间加 of。若充当主语,谓语动词的数应与 of后面的名词的数保持一致。如:Seventy percent of her income was spent
8、on clothes.2.倍数表达法(1)A谓语倍数as原级asBThe bag is twice as big as that one.(2)A谓语倍数as many/much名词asBI have twice as many books as he (does).(3)A谓语倍数比较级thanBThis classroom is three times bigger than ours.(4)A谓语倍数the size(width/length/height/depth 等)ofBYour piece of bread is three times the size of mine.注意:
9、表达倍数时,常用 half表示“一半” ,用 double或 twice表示“两倍” ,用基数词times 表示三或三倍以上。3.日期的表达(1)某年:in数字in 2018(2)某月:in月份in May(3)某年某月:in月年in May 2018(4)某年某月某日:on月日/on日月,年on May 1(st)/1(st) May,20184.时刻的表达twenty-one past/after eight或 eight twenty-onefour to/of nine或 eight fifty-sixhalf past eight或 eight thirtya quarter to/
10、of ten或 nine forty-five5.年代的表达the early 1920s/1920sthe early twentiesthe mid-eighties6.其他特殊表达5(1)表示“每一段时间”或“每隔”every three days/every fourth dayevery other dayevery few days(2)表示年龄in ones teensin ones twentiesat the age of 17He is twenty years old.He is a man of twenty.He is a twenty-year-old man.(3
11、)用于习语中one at a time one by one ten out of ten1.数词的拼写错误fourty(误)forty(正)ninty(误)ninety(正)nineth(误)ninth(正)twentith(误)twentieth(正)twentieth-first(误)twenty-first(正)three fifth(误)three fifths(正)the 2th of February(误)the 2nd of February(正)One Thousand One Nights(误)One Thousand and One Nights(正)2.特殊表达中的错误
12、every other days(误)every other day(正)in his tens(误)in his teens(正)several dozens of them(误)several dozen of them(正)more two days(误)two more days/another two days(正)Youd better try the third time.(误)Youd better try a third time.(正).单句语法填空1.Actually,this latest childrens version,belonging to a program
13、 titled Xiao 6Xigu (literally,young artists),is in honor of the thirtieth(thirty) anniversary of the 1987 work,praised as the most classic.(2018安徽皖北协作区高三联考)解析 “the序数词”表示特指“第几个” ,故填 thirtieth。2.I am still thankful to my uncle for teaching me to ride a bike on my ninth(nine) birthday. (2017东北师范大学附中模拟)
14、解析 句意为:我依旧感谢叔叔在我九岁生日(第九个生日)时教我学会骑自行车。3.He missed the gold in the high jump,but will get a second chance in the long jump. (2012大纲全国)解析 在序数词前用 a,则表示“再次,还有”之意。.单句改错(每小题仅有 1处错误)1.I am more than happy to know you got first prize in the speech contest.athe(2018湖南张家界三模)解析 the first prize为固定用法,意为 “第一名,一等奖”
15、 ,而且英语中表示顺序的序数词前一般用 the来表示顺序。所以句中的 a first prize中的 a要改为 the。2.During the days,a series of English activities were sixthsixorganized.(2018云南师大附中模拟)解析 during 后接时间段,此处表示六天,故用基数词。如果表达在第六天,则说 on the sixth day。3.In the summer holiday following my birthday,I took driving eighteeneighteenthlessons.(2017全国)解
16、析 表达多少岁生日用序数词,因此 eighteen应该改为 eighteenth。4.I still remember how hard first day was.(2017全国) the/my解析 句意为:我仍然记得第一天有多艰难。表示第几天,序数词前要加定冠词 the或者用限定词进行修饰。5.Its a big city with a population of about 7 .(2017河南毕业班高考millionsmillion适应性练习)7解析 million 前有基数词 7,须用单数。6.I want to have a pen friend,hopefully a girl
17、in early twenties,and with theherinterests similar to mine.(2017河南六市联考)解析 表示不确定的年龄,用 in ones 逢十的基数词的复数形式。.单句语法填空1.There is(be) one desk and three chairs in the room.2.Whats the date today?Its the fourth(four) of July.3.There are buses to the station every twentieth(twenty) minute.4.She was the first
18、 woman to win(win) the gold medal in the Olympic Games.5.In order to find a better job,he decided to study a second foreign language.单句改错(每小题仅有 1处错误)1.Two hundred dollars not large for us,and its easy for us to gain in areistwo days.2.Every year, of people die from illness caused by smoking.millionm
19、illions3.I have already got two letters from Susan this year,and this is third atheone.4.We are told that Professor Chen lives on the floor of this twentytwotwentysecondbuilding.5.Two-fifths of the on display are new items.machinemachines.数词填空(数词专练)There are 1.four seasons in a year:spring,summer,au
20、tumn and winter.A year can also be divided into 2.twelve months.Each month is divided into 3.three periods:the first,the middle and the last ten-day period.Mothers Day falls on the 4.second Sunday of May while Fathers Day on the 5.third Sunday of June every year.The 6.twelfth month of the year is De
21、cember.There are 7.fifty-two complete weeks plus an extra day,or 8.two in a year because there are 9.three hundred and sixty-five days in a common year but 810.three hundred and sixty-six days in a leap year.单句语法填空(一)1.We can relax ourselves(we) while reading her blog.2.That young man is honest,coop
22、erative,always there when you need his help.In short,hes reliable.3.A successful learner is an independent one,who has both a determined will and amazing patience.4.They are heading for Florida for their(they) honeymoon and plan to frame the treasured picture as soon as they get back.5.The dictionar
23、y is what I want,but I dont have enough money with me.6.She did not hesitate for long;although her father smoked a pipe only once in a while,she knew that this was a present which was bound to please him(he).7.In the end,the young men found that working hard is truly a treasure in itself.8.The quali
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