Hi！亲爱的朋友们，你们好！我是定冠词the，用在名词前，我的意思是“这(些)、那(些)”。我们冠词家族人丁稀少，但是作用可不小。我只有两个姐妹a和an。她们通常表示“一个(位、件……)”，用于单数可数名词前。我的性情有些古怪，你想了解我吗？

　　1　我喜欢演奏乐器，所以我常常出现在乐器前。如：play the piano/guitar(弹钢琴/吉他)等。

　　2　我经常和世界上独一无二的事物在一起，为此我非常自豪。如：the sun/moon(太阳/月亮)等。

　　3　我还喜欢帮助一些形容词、分词，与它们一起来表示一类人或事物。如：the old(老人)、the rich(富人) 等。

　　4　我没事时就喜欢和姓氏的复数形式闲聊人家一家子的情况。如：the Greens(格林一家)等。

　　5　我还喜欢和序数词一起强调数字的顺序，但当序数词前有形容词性物主代词等修饰限定时，我就会赶快逃走，销声匿迹。如：This is my eleventh birthday．(这是我的第十一个生日。)等。

　　注意：当我和序数词一起表示日期时，我经常躲起来，但如果在of短语中，我就一定会露面。如：May(the)first＝May 1st＝the first of May(五月一日)。

　　1　我不喜欢和科学名词在一起。如：math(数学)、English(英语)等。

　　2　我对球类运动不感兴趣，你在球类运动前根本找不到我。如：play basketball/soccer(打篮球/踢足球)等。

　　3　我还有个坏毛病——挑食，三餐饭前从来找不到我的影子。如：eat breakfast/lunch(吃早餐/中餐)等。

　　你了解定冠词the的生活习性了吗？赶快来找我吧！

请根据定冠词的“生活习性”填空，不需要填的地方打“×”。

1．He usually eats ________ dinner at 6:00 p. m..

2．Let's go and play ________ volleyball now.

3．She can play ________ violin very well.

4．We can speak ________ English and Chinese.

5．We should help ________ poor in the world.

6．My birthday is ________ 23rd of March.

7．I usually go to ________ school at 7:00 in ________ morning.

8．September is ________ ninth month of a year.

9．________ Greens live in China now.

10．I like to stay at ________ home and watch TV.

你知道你亲爱的爸爸妈妈的生日吗？那么你每年可以吃三次生日蛋糕；你知道你爷爷奶奶的生日吗？那么你每年可以吃五次生日蛋糕；你知道你的好朋友们的生日吗？那么……如果你还不知道，还等什么？赶快去打听一下吧！

My father's birthday is ________.

My mother's birthday is ________.

My grandfather's birthday is ________.

My grandmother's birthday is ________.

My birthday is ________.

My best friend's birthday is ________.

小词典：大家一定记得以前我们学了one，two，three，four这样一组表示数目的数词，这类词叫基数词。这一单元我们学到了表示顺序的数词，如：first，second，third等，这类词叫序数词。每个基数词有一个对应的序数词。除了一些特殊的变化外，一般是在相应的基数词后加-th构成序数词。序数词前一般要加定冠词，如the first name(第一个名字，名)，the second day(第二天)，CharlesV 查理五世读作Charles the fifth.

小博士：仔细观察下面的基数词和对应的序数词的区别和变化，你会发现这种变化是有规律的，你能归纳出来吗？请根据规律填出所缺的基数词和序数词，并特别注意黑体字的词。

我找到规律了！请看：

1　　英语序数词1～19，除first，second，third等特殊形式外，其余的一般是在相应的基数词后加-th构成。

2　　有几个序数词加-th时拼法不规则，要注意。如fifth，________ ________ ________。

3　　十位整数的序数词的构成方法是先将其基数词的词尾“ty”中的“y”改为“i”，再加“-eth”。如________。

4　　基数词“几十几”变成序数词时，只需将个位数变成序数词，十位数不变。如________。

Helen Keller lived in the USA． She was a great① woman.

　 When Helen was a baby, she got very sick. After many weeks, the doctor said, “She is better, but now she can’t see and can’t hear②.” Her mother and father were very sad.

　 After a few years, things got worse. There was no way for Helen to speak to other people. She heard nothing. She saw nothing. She didn’t understand anything.

　 Then one day a teacher came to live with Helen and her family. The teacher helped Helen learn about words. Helen was very bright and she learned to spell her first word③. When she was older, she went to college.

　 Helen was very famous. She helped many blind and deaf（聋） people. She traveled around the world and helped many people.

　 Helen was a very old woman when she died. The world remembers her today as a brave（勇敢） and wonderful person. She was blind and deaf, but she found a way to see and hear④.

1．下列A、B、C、D中哪一项不能替代①：____________________.

A．famous　　　　　 B．wonderful　　　 C．popular　　　　　 D．grand（自负的）

2．完成句子，使其意思与划线②相同：

She can ____________________ see _________________ hear.

3．完成句子，使其意思与划线③相同：

Helen was ________________ bright ________________ she learned to spell her first word.

4．用文中单词进行词形变化：

　 clever（同义词）_____________　 know（同音词）_____________

bad（比较级）_______________　 one（序数词）_______________

5．完成句子，使其意思与划线④相同：

____________________ she was blind and deaf, she found a way to see and hear.