中考英语复习专题三数词.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,专题三,数词,第1页,一,二,三,四,五,六,一、基数词,(,表数量,),第2页,一,二,三,四,五,六,第3页,一,二,三,四,五,六,注意,:(1)“in one,s+,整十数词复数形式,”,表示,“,在某人多少岁时,”,。,In his thirties,he got married.,他三十多岁时结婚了。,(2),基数词也可,表示,次序,由,“,单数名词,+,基数词,”,组成。此时单数名词和基数词首字母要大写。,Class Five,五班,Unit Three,第三单元,(3)in the+,年代,s(,s),表示,“,在,世纪,年代,”,in the 1980s(,s),在,20,世纪,80,年代,第4页,一,二,三,四,五,六,(4)another+,基数词,+,名词复数,=,基数词,+more+,名词复数,表示,“,又几个、另几个,”,。,We need two more bananas to make the milk shake.=We need another two bananas to make the milk shake.,制作这个奶昔我们还需要两根香蕉。,(5),基数词,+,连字符,+,名词,(+,形容词,),可组成复合形容词,做定语。,I have an eight-year-old brother.,我有一个,8,岁大弟弟。,第5页,一,二,三,四,五,六,二、序数词,(,表次序,),第6页,一,二,三,四,五,六,提醒,(1),序数词前要加定冠词,the,当序数词前有形容词性物主代词或名词全部格时省略,the,。,Bill,is,my,first,pen,pal.,比尔是我第一个笔友。,(2),序数词前加,a/an,表示,“,又一,再一,”,。,Even,though,the,Browns,have,3,children,they,still,want,a,fourth,one.,尽管布朗夫妇已经有,3,个孩子,可他们还想再要一个。,(3),序数词表编号时相当于名词,+,基数词。,Lesson,Two=the,second,lesson,第7页,一,二,三,四,五,六,三、分数,1.,分数表示,(1),分子用基数词,分母用序数词,;,假如分子大于,1,分母要用复数形式。,1/6 one sixth,3/4 three fourths,4/5 four fifths,(2),在英语中,“,四分之一,”,常表示为,a quarter;“,四分之三,”,表示为,three quarters;“,二分之一,”,表示为,a half,。,(3),百分数表示方式是,:,基数词,+percent,。,Forty percent of the students in our class are from cities.,我们班有,40%,学生来自城市。,第8页,一,二,三,四,五,六,2.,分数使用方法,“,分数,+of+,限定词,+,名词复数,”,做主语时,谓语动词应用复数形式,;,“,分数,+of+,限定词,+,不可数名词,/,名词单数,”,做主语时,谓语动词应用单数形式。但,“,分数,+of+,限定词,+population”,做主语时,谓语动词多用复数形式。,Two fifths of the students in this school are from China.,这所学校五分之二学生来自中国。,Two thirds of her money was spent on clothes.,她把三分之二钱花在了衣服上。,第9页,一,二,三,四,五,六,四、日期表示法,第10页,一,二,三,四,五,六,五、时间表示法,1,.,整点法,:,假如时间是整点,就用,“,钟点数,+o,clock”,来表示。,o,clock,可省略。如,:8:00,可读作,eight o,clock,或,eight,。,2,.,顺读法,:,顺读法,也叫直接读法,此方法用于现有钟点数,又有分钟数时间,通常先读钟点数,再读分钟数。如,:7:20,读作,seven twenty,。,3,.,倒读法,:,此方法是先读分钟数,再读钟点数,使用此方法要注意,:,(1),假如分钟数在,30,以内,就用,“,分钟数,+past+,钟点数,”,表示,介词,past,意为,“,过,”,。如,:6:10,读作,ten past six,。,(2),当分钟数恰好是,30,时,可用,“,顺读法,”,中,“,钟点数,+thirty”,也可用,“half+past+,钟点数,”,。如,:7:30,可读作,seven thirty,或,half past seven,。,第11页,一,二,三,四,五,六,(3),假如分钟数超出,30,则用,“(60-,分钟数,)+to+(,钟点数,+1)”,来表示,介词,to,为,“,差,”,意思。如,:6:35,读作,twenty-five to seven(,差二十五分钟七点,),。,在,“,倒读法,”,中,当分钟数包括,“15,分钟,”,时,普通不用,fifteen,而用,a quarter(,一刻钟,),来表示。如,:10:15,读作,a quarter past ten(,普通不读作,fifteen past ten),。,第12页,一,二,三,四,五,六,六、概数词使用方法,hundred,thousand,million,等词与详细数字或,several,some,many,等词连用时,其本身用原形。但其后若有,of,则需在这些单词后加,s(,此时不与详细数字连用,),。,two hundred,两百,many million trees,几百万棵树,hundreds of,数以百计,第13页,