按照所给句型把下列词语连成句子。

动词不定式作目的状语

1)children, flowers, give … to…, their mothers, to express their thanks

________________

2)he, to help with the housework, went home early

________________

3)they, to celebrate New Year, have a get-together

________________

They couldn't afford ________（买数码摄像机）because it was much too expensive for them.

It's our duty ________（保护环境）so that people can live a better life.

The old couple used ________（在河边散步）after supper.

阅读短文，从方框中选择适当的动词，并用其适当形式填空。有的需要加助动词或不定式符号 (每词限用一次)。

Mr. Jackson is sixty-four years old. He (1) ______________ in a high school in a small town. All the town people know him very well because he (2) ______________ a teacher there for over forty years.
Mr. Jackson was born in London. He was twenty-two when he (3) ______________ college. Then he came to the small town to teach. He is hard-working and always makes his lessons interesting. He likes his students and the students like him, too. He (4) ______________ as the best teacher in the school.
Mr Jackson will retire next year. But he doesn’t plan (5) ______________ back to London. “I think this small town is my hometown. I won’t leave it,” he said.