北安中学（九年级英语）学案
一、教学目标：数词的相关语法以及能够利用相关语法做题。 二、重难点：灵活地运用定数词的相关的知识进行做题 三、复习内容：基数词的用法。 四、自学内容与指导： 基数词的读法： 1.1-12 单独记：one, two, three, four ,five ,six ,seven ,eight ,nine ,ten ,eleven ,twelve.
2.13-19 词尾为 teen :thirteen ,fourteen ,fifteen , sixteen , seventeen , eighteen ,nineteen.
3.20, 30, 40等逢十的单词词尾为ty：twenty ,thirty , forty ,fifty , sixty ,seventy ,eighty ,ninety.
4.21-99 的非整数十位数的单词在十位数和个位数之间加连字符构成。如： twenty-one21 ,twenty-two22 ,twenty-three 23 , thirty-four34 ,thirty-five35 ,forty-six 46, forty-seven 47 fifty-eight58 ,sixty-nine69
5.101-999先说几百，再加and，再加末尾两位数（或末尾数） one hundred and two 102 , four hundred and eighty-two 482
nine hundred and ninety-nine 999 ,three hundred and sixty-three 363
6.1000以上的单词，是从右向左用分节号“’”分节，每三个数字为一节，第一个分节号前用thousand，第二个分节号前用million ，第三个分节号前用billion(美语) 或one thousand million（英国用法）。 1004， one thousand and four 18,657,421 eighteen million ,six hundred and fifty-seven thousand ,four hundred and twenty-one.
1,214,000,000 one billion ,two hundred and fourteen million
/ one thousand million ,two hundred and fourteen million
725,369 seven hundred and twenty-five thousand ,three hundred and sixty-nine 基数词的用法：
1.基数词在句中可作主语、宾语、定于、同位语、标语。如： Twenty of them are Party members. Three from eight leaves five. The nine boys are from Taiyuan. Six plus four is ten.
We four will go to HongKong with you .
2.在表示具体数目时：hundred,thousand,million等用单数；在表示“数百”“数千”“数百万”等不确定数目时，在hundreds, thousands,millions 后加of+名词复数。如： Thousands of trees must be planted every year. What would you do if you had a million dollars? 3.基数词的复数形式可用来表示人的岁数或时代。 He went to the United States in his twenties. You’re sharpest in your twenties. That was in the early forties.
五、自学检测：
一.写出下列词的正确形式：
1. 基数词：68_______ 345________ 79_______ 92______ 90_______
12______ 100_____ 2000_____ 145,386_____ 200,564,300,123____________
2.九年级四班__________ 第八排___________ 505房间________ 在四楼_______ 2010年5月3日____________ 第56中学_________ 四分之三________ 二分之一_________ 二．选择题：
1.—How many days are there in a week? ----______days
There are _____minutes in an hour and_____hours in one day .
2.More than twenty ___students are having an important exam at the moment. A. thousands B. thousands C. thousand D. thousand of 3. There are( )employees and several employers in the company.
A a thousand of B thousand C thousands of D thousands 4. He always wanted to have( )of books and he has recently bought four( ).
A hundreds...hundreds B hundred...hundred C hundreds...hundred D hundred...hundreds 六、训练提升：
1. There are ___ days in a year.
A. three hundreds sixty-five B. three hundreds and sixty-five
C. three hundred and sixty-five D. three hundred and sixty five
2. There are____ students in this school.
A. eight hundreds and forty-six B. eight hundred and forty six C. eight hundred and forty-six D. eight hundred forty-six 3.______people visit this museum every day.
A. Hundred B. Hundreds C. Hundred of D. Hundreds of 4.There are two___ people in the meeting room.
A. hundred B. hundreds C. hundreds of D. hundred of 5.Every year ___ watch NBA on TV.
A. million people B. millions of people C. millions people D. million of people
6. The teacher asked each student to write an _____ composition in Chinese. A. eight-hundred-words B. eight-hundreds-word
C. eight-hundreds-words D. eight-hundred-word
7.We are going to have a basketball match with _____. A. Class First B. Class One
C. First Class D. Class the First
8. The number of the students in our school adds up to _____.
A. two thousand and three hundred and thirty-two B. two thousand three hundred
and thirty-two
C. two thousand three hundred thirty-two D. two thousand and three hundred thirty-two.
9. My uncle began to teach himself German when he was already in his _____. A. forties B. forty C. fortieth D. forty’s 10 More than _____ people watched the comedian’s wonderful performance.
A. two thousands B. two thousands of C. two thousand D. two thousand of
七、学生反思：
八、作业内容：
熟记基数词的读法和使用方法。