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初中英语语法—数词PPT

• 我家有五口人。
• We live on the sixth floor in a tall building.
• 我们住在一座高楼的第六层。
基数词
(一)基数词的表示方法 1.基数词1~12是独立的词。
1 one 3 three 5 five 7 seven 9 nine 11 eleven
2 two 4 four 6 six 8 eight 10 ten 12 twelve
3.年代的读法为两位、两位地读。整百的后读
hundred,整千的后读thousand,前常加“the year”。
1937读作nineteen thirtyseven
或:nineteen hundred and thirtyseven
1900年读作nineteen hundred
1905年读作nineteen and(或o)five
laboratory?
—No, I think we need ________students.
A.another C.more two B.two others D.two more
3.The government of Chongqing is
building________cheap and good houses for the
你会写数字85,626吗?
—Yes, it is 85,626. 会写,它是85,626。
6.百(hundred),千(thousand),百万
(million)等词与数字或a(n)连用时,词尾不可
加“s”。ຫໍສະໝຸດ The computer was cheap. I only spent two thousand yuan on it. ______________________________________ 那台电脑很便宜,我只花了两千元.
30 thirty / ' θɜːtI/
50 fifty / ' fIftI/
60 sixty / ' sIkstI/
80 eighty / ' eItI/
70 seventy / ' sevntI/
90 ninety / ' naIntI/
注:13~19的teen/'tiːn/都是重读音,而20~90的ty/tI/
世界上3/4的书和报纸是用英语写的。
3.较复杂的分数的读法为“基数词分子+over+基数词分 母”。带分数的读法是在整数与分数之间加读and。
27 twenty-seven over two hundred and eighty-five 285
1 5 2
4 6 5
five and a half
six and four fifths
4.基数词101~999,先说“几百”,再加 “and”,再加末两位数。 —How many days are there in a year?
一年有多少天?
—_________________________. Three hundred and sixtyfive
三百六十五天.
5.1,000以上的数,先从后向前数,每三位加“,”,第一个“,”
(三)分数 1.分数的表达与读法。 Two thirds of the students are girls in our class. 在我们班,三分之二的学生是女孩。
注:分子须用基数词,分母用序数词。分子如果大于1,分母须用 复数形式。先读分子,再读分母。分子为 one 时可换用“a”。
2.1/2读作“ a(one)half ”(而不是a second“一秒
people.
A.thousand C.thousand of B.thousands D.thousands of
4.Nowadays ________of business letters are
written in English.
A.two third
C.two three
B.two thirds
从20世纪50年代到20世纪70年代,图画故事的卡通片
是很受欢迎的。
9.基数词可与其他词构成合成形容词。
Kate is an __________________ eighteenyearold girl. 凯特是
个18岁的女孩。
注:这种合成形容词的结构为:“数词+单 数名词+形容词”。复合形容词中,词与词之 间要加连字符“­”。
数词
定义:表示数目多少或顺序先后的词叫做数词。
数词有两种:
*表示数目多少的数词叫做基数词,
如:one,two,three...,ninetyfour等;
*表示顺序先后的数词叫做序数词,
如:first,second,third...,fifteenth等。
例句
• There are five people in my family.
读作:July the seventh two thousand and five 或the seventh of July two thousand and five
Today is Thursday,September 19th. 今天星期四,9月19日。
7.一些数学公式的读法:“加”用plus/and,“减” 用minus, “乘”用times,“除”用divided by,动词多 用单数,如: 3+5=8读作:Three plus/and five is eight. 9-2=7读作:Nine minus two is seven. 6×5=30读作: Five times six is thirty. 8÷4=2读作:Eight divided by four is two.
8.表示“几十”的数词的复数形式
可用来表示人的岁数,
She is ________________ but she in her fifties looks young.
她五十多岁,但她看上去很年轻。
在表示“几十年代”时,可以用基数词的复数形式,也 可用阿拉伯数字加“s”或“'s”。
the 1950's(1950s) to ___________________ the 1970's(1970s) From_________________ , picturestory cartoons were very popular.
7.百(hundred),千(thousand),百万(million)等词与介词of连用时,
须用复数形式,表示不确定数目,其前不可与数字连用。
—How many people went to Beijing for the Olympic Games in 2008?
有多少人去北京看2008年奥运会? —_______________ Millions of ,I think. 上百万,我认为。
钟”);1/4既可读作“ a(one) quarter ”,又可读作“
a(one) fourth ”。
________________________________________ Three quarters of the world's books and newspapers
are written in English.
D.second three
5.—David, how old is your father this year? —________.And we just had a special party for his _______ birthday last weekend. A.Fortieth;forty C.Forty;fortieth B.Forty;forty D.Fortieth;fortieth
都是非重读音节;/'tiːn/为长音,而/tI/为短音。
3.基数词21~99都是由“几十”和“几”合起来 构成,词中间加连字符(但音标里不加连字符),并 分别重读。 21 twentyone 23 twentythree 34 thirtyfour 45 fortyfive 56 fiftysix 67 sixtyseven
前为thousand,第二个“,”前为million,第三个“,”前为billion(美
式)或thousand million(英式)。
—Can you write the number
eightyfive thousand,six hundred and twentysix _________________________________________?
表示顺序的数词称为序数词。序数词
一般以与之相应的基数词加词尾th构成; 多个单词时,仅最后一个变为序数词。
序数词前一般需加“the”。
1.“基数词”变“序数词”的口诀
一、二、三特殊记,结尾要用t,d,d;
八去t,九去e,
ve要用f替, 整十数变序数,先把y变为ie,然后再加th, 若想表示几十几,只变个位就可以。
练一练
1.Now,everybody,please turn to Page________and look at the________picture. A.Fifth;five C.Fifth;fifth B.Five;fifth D.Five;five
2.—Do you have enough students to clean the
10.基数词可用作主语、宾语、表语或同位语。
Give him three.(宾语) 给他三个。
___________ Two thirds of the teachers in our school are women teachers.(主语) 我们学校三分之二的老师是女老师。
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