题目内容：

阅读短文， 按照题目要求用英语回答问题。

Last December, Doris Low turned 90. Once a week she still drives to the Canadian National Institute for the Blind (CNIB) in Toronto, where she helps transform literature into Braille() to bring the power of story and knowledge to the hears and minds of blind readers. She has been volunteering her time and talents to such enterprises foe more than 40 years.

After working in the business world for a while, Low got fed up. So she turned to teaching at a technical school and later moved into the library.

Low’s mother liked reading. As her eyes began to fail, low read to her. Then “ hearing an advertisement encouraging people to learn Braille, I decided to give it a try.” In 1973, she was certified as a braille transcriber (转译者) and began transcribing books as a volunteer for the CNIB library.

The job was strenuous ---she could get to the end of a page, make a mistake on the last line, and have to do the whole thing again. For a number of years, low also worked in the CNIB sound studio reading books onto tape. Three years ago, she took up proofreading (校对) at the CNIB’s word factory.

In April, during Volunteer Week, the CNIB recognized Low for her great contributions. Thanks to volunteers like Low, the CNIB library has got more than 80,000 accessible materials for people unable to read traditional print. “ I can’t imagine how many readers of all ages have benefited from

Doris’s contribution as a skilled volunteer through her rich voice and her high degree of accuracy in the hundreds of books she has brailled and proofread over the years--- and she is still doing so,” said a CNIB official.

“For me,” said Low, “the CNIB is more than just a place to volunteer. Three thins matter most in my life: a little play, a little work, a little love. I’ve found them all here.”

1.What does Low still do at the age of 90 at the CNIB? ( no more than 10 words)

2.Why did Low learn Braille? ( no more than 15 words)

3.what does the underlined word “strenuous” most probably mean?(1 word)

4.What are Low’s contributions to the CNIB? ( no more than 10 words)

5.What do you think of Low? Give your reasons. ( no more than 20 words)