1 . 选词填空

come to power，be quite distinct from，in conclusion，throw light on play a key role，wear and tear，sum up，lead to，take up，commitment to

1. When the new ruler ________， he made peace with all his former enemies.
2. Mr. Smith left a career in teaching to________a position with the Arts Council.
3. As far as Im concerned， rock music________North American jazz or blues.
4. Apart from fair ________， the car is in excellent condition.
5. The new system may be more economic but will ________ a decline in programme quality.
6. ________， parents have to change some of their belief about how children should be raised.
7. She doesnt want to make a big emotional ________Steve at the moment.
8. Viewing childhood development as a scientific investigation ________ how children learn.
9. Mei Lanfang________ in bringing Beijing Opera to the world， leading to the international status.
10. The teacher asked us to ________ the main point of the lesson in three sentences.

4 . 写出下列句子中画线短语的含义
1. Let's take up the presentation where we stopped before lunch. _________
2. It's not difficult to take up a new career in midlife. _________
3. The huge car took up the whole garage. _________
4. As a teenager, we should learn to take up the challenge of society. _________