英语中共有26个字母，其中有________个元音字母，它们是Aa ________ Oo Uu．

A．4;Ii

B．5; Ii Ff

C．5; Ee Ii

D．5; Ee Rr

书写与表达，请将下面字母表中所缺的字母写出来。

Aa　Bb　Cc　Dd　Ee　Ff　　Hh　　　Kk　Ll　Mm　Nn　Oo　Pp　　Rr　Ss　Tt　Uu　Vv　Ww　Xx　　Zz

找一找每组的发音规律，填写所缺字母的大小写。

Aa Hh 　　1　　 Kk

Ee Bb 　　2　　 Dd 　　3　　 Pp 　　4　　 Vv

Ii 　　5　　

Uu 　　6　　 Ww

Ff 　　7　　 　　8　　 　　9　　 Ss 　　10　　 Zz

短文填空，先通读下面的短文，然后根据短文内容和所给首字母，在空格内填入一个适当的词，使短文意思完整。所填单词必须在横线上完整写出。

　　In August 2005．Mark Bent, 49, a businessman, first visited a village in Africa．He found people were too p　　1　　 to have electric light．So he spent ＄250, 000 developing and producing a solar-powered flashlight(太阳能手电筒)．"In places where is no electricity or running water, having light at night is their d　　2　　．I will try my test to help them, " said Bent

　　The solar-powered flashlight gets power from the sunlight and can l　　3　　 for 7 hours every night．People just put three AA batteries(蓄电池)in it．The batteries are o　　4　　 80 cents．

　　Over the last year．Rent said, he and his friends have sent 10, 500 flashlights to many refugees(难民)．In a refugee camp, a refugee named Peter Gatkuoth wrote about the i　　5　　 of the solar flashlight．"If we meet a thief, we will turn on our solar flashlight and the thief will run away．If a person is s　　6　　 at night, we will use the flashlight to take him to the health center．If wild animals come c　　7　　 to me, I will use the light to f　　8　　 them away．Others said the lights were hung above school desks for children and adults to study after a d　　9　　 work．

　　With a little research, Bent found that nearly two billion people around the world live without electric light．A lot of children have breathing p　　10　　, in part because of the use of wood and candles for light in their small homes．