一课一题一语法：新概念英语第2册第31课
Hello，大家好！欢迎来到“新概念英语的教与学”！我是上海时学教育的张老师。下面是我们每周一课一题一语法的分享时间，先来公布上一期课后一题的答案。
上一期分享的文章，点击这里回看
下面我们继续本周《新概念英语2》第31课的重点句型或语法的分享。先来读一读课文：
一、课文原文
Lesson 31 Success story
Yesterday afternoon Frank Hawkins was telling me about his experiences as a young man. Before he retired, Frank was the head of a very large business company, but as a boy he used to work in a small shop. It was his job to repair bicycles and at that time he used to work fourteen hours a day. He saved money for years and in 1958 he bought a small workshop of his own. In his twenties Frank used to make spare parts for aeroplanes. At that time he had two helpers. In a few years the small workshop had become a large factory which employed seven hundred and twenty-eight people. Frank smiled when he remembered his hard early years and the long road to success. He was still smiling when the door opened and his wife came in. She wanted him to repair their grandson's bicycle!
——选自《新概念英语》第二册，外语教学与研究出版社，1997年10月第1版
二、重点句型或语法
本课侧重过去习惯的表达used to do，课文例句如：
... as a boy he used to work in a small shop.
used to do 表示曾经或过去经常发生的动作，但现在不再发生了。
I used to do something 表示过去，而不是现在，不能说 I use to do；如果要谈论现在经常发生的动作，则使用一般现在时 I do. 例如：
We used to live in a small village, but now we live in London.
There used to be four cinemas in the town. Now there is only one.
used to do 一般疑问句形式是 Did (you) use to...? 如：
Did you use to eat a lot of sweets when you were a child?
否定形式为 didn’t use to... 或 used not to... 如：
I didn’t use to like him. 或 I used not to like him.
注意区别 used to do和 be used to doing，两者在结构和意思上都是不同的。be used to doing 表示习惯于（做）某事，其中to是介词。如：
I am used to the weather in this country.
Paul is used to living alone.
三、一课一题
根据上文总结的内容，请选择正确的选项。
He _____ go to work by bus, but now he goes by car.