单元语法小专题(Grammar Focus)
语法精讲
一、序数词
序数词用来表示事物的顺序,其前常加定冠词the。
1.序数词的构成:
(1)英语中1~19的序数词,除了first,second,third外,其余均由基数词加-th构成,但要注意fifth,eighth,ninth,twelfth的拼写形式。
(2)以-ty结尾的基数词,变为序数词时,将y变为i,再加-eth。如:twenty→twentieth 第二十
(3)“几十几”以上的基数词,变为序数词时,只把个位数变为序数词。如:thirty-five→thirty-fifth第三十五
(4)序数词的缩写形式是由阿拉伯数字后面加上序数词的最后两个字母构成。如:23rd→twenty-third第二十三
【记忆口诀】
基变序有规律:结尾字母是th;
一二三特殊记,结尾字母tdd;
八去t九去e,f要把ve替;
ty将y变成i,th前面还有一个e;
几十几也好记,只变个位就可以。
2.序数词的用法:
(1)序数词可以用来表示顺序、编号等,但要放在名词前面。如:the second picture 第二幅图。
(2)序数词可以表示“几月几日”中的“几日”。如:
February 11th
August 3rd
(3)序数词前面通常要使用定冠词the,但当序数词前面有形容词性物主代词或名词所有格修饰时,不能用the。如:
That is the fourth book.那是第四本书。
This is Mike's twelfth birthday.这是迈克的第十二个生日。
二、名词所有格
英语中名词后加上-'s便构成所有格,表明一种所有关系,这种所有格形式叫“-'s所有格”。-'s所有格的构成如下:
语法精练
Ⅰ.用括号内所给单词的适当形式填空。
1.Mary is happy,because it's her ________(nine) birthday today.
2.He is always the ________(one) one to come,but the last one to go.
3.Today is ________(Bob) birthday.Let's have a party for him.
4.Mike and Tom are ________(thirteenth) years old this year.
5.The ________(twelve) month of the year is December.
Ⅱ.单项选择。
( )6.—When is your birthday?
—It's on________.
A.February the nine
B.February nineth
C.February the ninth
D.February the nineteen
( )7.The boy is only________year old and his________name is Joe.
A.one;one B.first;one
C.one;first D.first;first
( )8.On my________birthday,my mom buys me a computer.
A.twelve B.twelfth
C.the twelve D.the twelfth
( )9.May is the________month of a year.
A.five B.three
C.third D.fifth
( )10.Look at the man over there.He is________uncle.
A.Jim's and Tim's B.Jim's and Tim
C.Jim and Tim D.Jim and Tim's
Ⅲ.根据汉语意思完成句子,每空一词。
11.我们在举行一次足球比赛。
We have a soccer game ________ ________ ________ ________.
12.我的生日在。
My birthday is on ________ ________ ________.
13.今天是我妹妹的5岁生日。
It is my ________ ________ birthday today.
14.教师节在。
________ ________ is on September 10th.
15.吉娜的手表在床上。
________ ________ is on the bed.
单元语法小专题(Grammar Focus)
Ⅰ.1.ninth 2.first 3.Bob's 4.thirteen 5.twelfth
Ⅱ.6-10 CCBDD
Ⅲ.11.on August the seventh 12.September the ninth 13.sister's fifth
14.Teachers' Day 15.Gina's watch