4 . 选词填空。

arguments；challenge；performance；explore；opportunity exchange；impression；reflecting；description；apply

1. China began to ________ the South Pole in 1984.
2. Mrs. King is not satisfied with her daughter’s ________in the National Skating Competition.
3. My visit to Yunnan last year left a deep ________on me.
4. What makes you ________to our company for the job?
5. Li Nan once had an________to study abroad in England, but he missed it.
6. There have been lots of _________about his drinking.
7. With the white walls ________ the light, the room looks brighter.
8. The instructions give a detailed ________ of how to use the phone to take pictures.
9. We should be willing to ________ ideas and learn from others.
10. China faces the _________ of rapid aging.

5 . Reading can give students a chance to ________ their interests, which, ________ enables them to enjoy life more.

A．explain, on the way	B．discover, by the way
C．realize, in the way	D．explore, in a way